Battery box and energy storage system

Abstract

The utility model discloses a battery box and energy storage system, energy storage system includes battery box and battery group, and the inside formation of battery box has installation space, and battery box is provided with the repair mouth, and the repair mouth is connected with installation space, and battery group is installed in installation space, battery box includes box, mounting and panel, and the box is provided with the repair mouth, and mounting and box are connected, and the panel cover is established in the repair mouth, and is connected in mounting. Compared with the panel lock of traditional technology is paid in the box, the design of the application is through the panel connection in mounting and not direct lock in the box, like this, even in the case of box aging, the panel still can keep good fixed state, will not easily come off, thereby has guaranteed the sealing function of battery box is not influenced. Adopt this energy storage system of battery box, in structural strength and box air tightness aspect has obtained the remarkable promotion, avoids the occurrence of partial air leakage phenomenon, and this has important significance to improve the production quality of energy storage system.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery technology, and in particular to a battery box and energy storage system. Background Technology

[0002] In the current technological field, battery boxes are widely used to protect and secure battery packs while providing necessary mechanical support. However, in traditional battery box designs, the connection between the service panel and the battery box often relies on simple mechanical connections such as screws or clips.

[0003] However, as the battery box ages, the cover may become worn, causing the locking nuts to loosen and the service panel to become loose, severely affecting the battery box's sealing performance. This not only weakens the overall structural strength of the battery box but also presents additional challenges and inconveniences during repair and maintenance. In extreme cases, it may even lead to the service panel detaching or being damaged, further impacting the battery box's lifespan and safety. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a battery box and energy storage system that can improve the connection stability of the maintenance panel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A battery box includes a box body, a mounting component, and a panel. The box body has a maintenance opening. The mounting component is connected to the box body. The panel covers the maintenance opening and is connected to the mounting component.

[0007] In one embodiment, the mounting component is connected to the inside of the housing, and the panel covers the maintenance opening from the outside of the housing.

[0008] In one embodiment, the battery box includes a first sealing ring that surrounds the service port and abuts between the mounting element and the box body.

[0009] In one embodiment, the mounting component has a first sealing groove on the side facing the maintenance port, or the housing has a first sealing groove on the side facing the mounting component; the first sealing ring is installed in the first sealing groove.

[0010] In one embodiment, the battery box includes a second sealing ring that surrounds the service port and abuts between the box body and the panel.

[0011] In one embodiment, a second sealing groove is provided on the side of the panel facing the housing, or the second sealing groove is provided on the side of the housing facing the panel; the second sealing ring is disposed in the second sealing groove.

[0012] In one embodiment, the thickness of the first sealing ring is 4.5 mm to 5.5 mm; and / or, the thickness of the second sealing ring is 4.5 mm to 5.5 mm.

[0013] In one embodiment, the battery box includes a first fixing member and a second fixing member. The mounting member has a plurality of first fixing holes along its circumference, and the panel has a plurality of second fixing holes along its circumference. The first fixing member passes through the first fixing holes and the second fixing holes to fix the panel and the mounting member.

[0014] The mounting component has multiple third fixing holes along its circumference, and the housing has multiple fourth fixing holes. The second fixing component passes through the fourth fixing holes and the third fixing holes to fix the mounting component and the housing.

[0015] In one embodiment, the first fixing member includes a fixing screw and a fixing nut. The fixing screw is connected to the mounting member. The rod of the fixing screw passes through the first fixing hole and the second fixing hole in sequence. The fixing nut is connected to the rod of the fixing screw from the outside of the panel.

[0016] In one embodiment, the number of the first fixing holes is greater than the number of the third fixing holes; the plurality of the third fixing holes are respectively provided at the corners of the mounting component, and the plurality of the first fixing holes are provided between two adjacent third fixing holes.

[0017] This utility model also adopts the following technical solution to provide an energy storage system, including a battery box and a battery pack as described in any of the above embodiments. The battery box has an installation space, the installation space is connected to the maintenance port, and the battery pack is installed in the installation space.

[0018] The beneficial effects of this utility model are as follows: This application provides a battery box and an energy storage system. The energy storage system includes a battery box and a battery pack. An installation space is formed inside the battery box, and a maintenance port is provided, communicating with the installation space. The battery pack is installed in the installation space. The battery box includes a body, a mounting component, and a panel. The body has a maintenance port, the mounting component is connected to the body, and the panel covers the maintenance port and is connected to the mounting component. Compared to the traditional technology where the panel is locked to the body, this design connects the panel to the mounting component. The panel is no longer directly locked to the body but is connected through a special mounting component. This design effectively avoids the problem of loosening of connection points due to body aging, ensuring a more stable and reliable connection between the panel and the body. Thus, even with body aging, the panel can maintain a good fixed state and will not easily loosen, thereby ensuring that the sealing function of the battery box is not affected. The energy storage system using this battery box has significantly improved in terms of structural strength and airtightness. Because the connection is more secure, local air leakage can be effectively avoided, which is of great significance for improving the production quality of energy storage systems. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a battery box according to this utility model is shown;

[0020] Figure 2 An exploded view of the components of a battery box according to this utility model is shown;

[0021] Figure 3 A cross-sectional schematic diagram of a battery box according to the present invention is shown;

[0022] Figure 4 A schematic diagram of the structure of an installation component according to this utility model is shown;

[0023] Figure 5 It shows Figure 1 Enlarged view of point A in the image;

[0024] Figure 6 An exploded view of the components of a box according to this utility model is shown;

[0025] Attached reference numerals: 1. Housing; 11. Maintenance port; 12. Fourth fixing hole; 13. Installation space;

[0026] 2. Mounting component; 21. First fixing hole; 22. Third fixing hole; 23. First sealing groove;

[0027] 3. Panel; 31. Second fixing hole;

[0028] 4. First fixing component; 41. Fixing screw; 42. Fixing nut; 5. Second fixing component; 6. First sealing ring; 7. Second sealing ring. Detailed Implementation

[0029] In this utility model, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or constituent parts. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] See Figure 1 This application provides an energy storage system including a battery box and a battery pack. The battery box has an installation space 13 inside and a maintenance port 11. The maintenance port 11 is connected to the installation space 13 and the battery pack is installed in the installation space 13.

[0033] In practical applications, the service port 11 on the battery box plays a crucial role, providing technicians with a convenient access for timely maintenance and repair of the battery pack. Through the service port 11, engineers or technicians can easily check the battery status, perform necessary tests, replace damaged components, or perform other maintenance tasks without disassembling the entire battery box. This design improves maintenance efficiency, reduces downtime, and helps ensure the safe and reliable operation of the battery system.

[0034] See Figure 2The aforementioned battery box includes a box body 1, a mounting component 2, and a panel 3. The box body 1 has a maintenance port 11. The mounting component 2 is connected to the box body 1. The panel 3 covers the maintenance port 11 and is connected to the mounting component 2. It should be noted that the box body 1 is usually made of insulating materials such as plastic to ensure the insulation performance of the battery box.

[0035] In practical applications, mounting component 2 is typically made of metal, which significantly improves the strength and durability of the structure. Panel 3 is designed to cover the maintenance port 11, its main function being to seal the maintenance port 11, preventing external dust and moisture from entering and thus avoiding contamination of the battery pack. Panel 3 and mounting component 2 need to be connected, for example, by bolts. Since mounting component 2 is made of metal, this connection method provides sufficient fastening force to ensure that panel 3 remains stable and does not easily loosen during long-term use. Compared to traditional technologies, the design concept of this application is to connect panel 3 to mounting component 2, rather than directly locking it to the housing 1. This design effectively avoids problems such as loosening of connection points or uneven pressure due to aging of housing 1, thereby preventing panel 3 from loosening and ensuring that the sealing performance of the battery pack is not affected.

[0036] See again Figure 1 and Figure 2 Mounting component 2 is connected to the inside of housing 1, and panel 3 is installed on the outside of housing 1 over maintenance opening 11.

[0037] In practical applications, the inner side of the housing 1 and the mounting component 2 can be tightly connected via threads or other mechanical fastening methods, ensuring that the mounting component 2 is firmly fixed inside the battery box without any loosening or displacement. Furthermore, the mounting component 2's location inside the housing 1 prevents it from shaking due to external impacts, improving the reliability of its fixation. Simultaneously, the panel 3 extends from the outside of the housing 1 over the maintenance opening 11, forming a stable covering layer that effectively blocks external environmental interference and potential damage to the battery pack. This combined inner and outer design not only ensures stable installation of the battery pack but also greatly facilitates rapid maintenance and inspection, significantly improving the overall performance and reliability of the energy storage system and providing a strong guarantee for long-term stable operation.

[0038] See Figure 3 The battery box includes a first sealing ring 6, which surrounds the maintenance port 11 and abuts between the mounting part 2 and the box body 1.

[0039] In practical applications, to ensure stable operation and extend the service life of the equipment, a first sealing ring 6 can be designed and installed between the mounting component 2 and the housing 1. This first sealing ring 6 is carefully positioned around the maintenance port 11, and its main function is to seal the gap between the housing 1 and the mounting component 2, thereby significantly improving the overall system's protective performance. In this way, the airtightness of the battery box is effectively improved, thus greatly reducing the risks caused by air leakage and ensuring the safety and reliability of the equipment.

[0040] See Figure 4 The mounting component 2 has a first sealing groove 23 on the side facing the maintenance port 11, or the housing 1 has a first sealing groove 23 on the side facing the mounting component 2; the first sealing ring 6 is installed in the first sealing groove 23.

[0041] In practical applications, the corresponding part on the mounting component 2 or the housing 1 can be designed as a first sealing groove 23, and the first sealing ring 6 is precisely embedded in this groove. This facilitates the precise positioning of the first sealing ring 6, and the first sealing groove 23 also serves to fix the first sealing ring 6, preventing it from loosening due to external vibration. This structural design not only effectively prevents dust and moisture from entering the battery pack, but also provides additional protection during maintenance, ensuring the long-term stability and safety of the battery box. Meanwhile, the first sealing ring 6 is made of high-temperature resistant and chemically corrosion-resistant materials, ensuring it maintains a good sealing effect even under extreme conditions. Furthermore, under extreme temperature changes, the first sealing ring 6 retains its elasticity and sealing performance, effectively preventing moisture and contaminants from seeping into the battery box. Moreover, because the size and shape of the first sealing groove 23 are precisely designed, the first sealing ring 6 is easier to install and remove, reducing operational difficulty and time. This design not only improves maintenance efficiency but also ensures the long-term stable operation of the battery box.

[0042] It should be noted that the first sealing ring 6 can directly abut between the housing 1 and the mounting part 2, in which case the first sealing groove 23 may not be provided.

[0043] See again Figure 3 and Figure 4 The battery box includes a first fixing member 4 and a second fixing member 5. The mounting member 2 has multiple first fixing holes 21 along its circumference, and the panel 3 has multiple second fixing holes 31 along its circumference. The first fixing member 4 passes through the first fixing holes 21 and the second fixing holes 31 to fix the panel 3 and the mounting member 2.

[0044] In practical applications, the first fastener 4 can be selected from various fastening methods, including but not limited to bolts, screws, and other fasteners. The first fastener 4 can pass through the first fixing hole 21 and the second fixing hole 31 to ensure a tight connection between the panel 3 and the mounting part 2.

[0045] See again Figure 3 and Figure 4 The mounting component 2 has multiple third fixing holes 22 along its circumference, and the housing 1 has multiple fourth fixing holes 12. The second fixing component 5 passes through the fourth fixing holes 12 and the third fixing holes 22 to fix the mounting component 2 and the housing 1.

[0046] The second fastener 5 passes through the fourth fixing hole 12 of the housing 1 and the third fixing hole 22 of the mounting component 2, thereby firmly fixing the mounting component 2 inside the battery box. This multi-layered fixing method greatly enhances the safety and reliability of the battery pack, ensuring that the structural integrity of the battery box remains unaffected even under extreme conditions. The second fastener 5 can be fastened using various methods, including but not limited to bolts, screws, and other fasteners.

[0047] See Figure 5 The first fixing component 4 includes a fixing screw 41 and a fixing nut 42. The fixing screw 41 is connected to the mounting component 2. The rod of the fixing screw 41 passes through the first fixing hole 21 and the second fixing hole 31 in sequence. The fixing nut 42 is connected to the rod of the fixing screw from the outside of the panel 3.

[0048] In practical applications, the fixing screw 41 is typically combined with the mounting component 2 via welding or other fixed connection methods. Subsequently, the shaft of the fixing screw 41 passes sequentially through the first fixing hole 21 and the second fixing hole 31. Then, the fixing nut 42 is installed on the outside of the panel 3 to achieve a locking connection. This design makes the installation process more convenient, especially when operating space is limited, as tightening the fixing nut 42 from the outside of the housing 1 is easier. Furthermore, with the fixing nut 42 located externally, disassembly can be completed simply by unscrewing it. Reinstallation requires no additional adjustment; simply aligning the second fixing hole 31 of the panel 3 with the fixing screw 41 allows for quick disassembly and installation of the panel 3. This design not only facilitates the disassembly and installation of the panel 3 but also makes inspection and maintenance more convenient, thus ensuring the stability and safety of the connection.

[0049] See again Figure 4 The number of first fixing holes 21 is greater than the number of third fixing holes 22; multiple third fixing holes 22 are respectively provided at the corners of the mounting part 2, and multiple first fixing holes 21 are provided between two adjacent third fixing holes 22.

[0050] In practical applications, panel 3, as the main sealed maintenance port 11 of the battery box, directly affects the reliability of the battery box's sealing function due to its connection stability. Therefore, to ensure the firmness of the connection between panel 3 and mounting component 2, more first fasteners 4 can be used for fixing. This effectively strengthens the connection between panel 3 and mounting component 2. Given that panel 3 on the outside of the battery box is more susceptible to external impacts and environmental factors, increasing the number of fasteners between panel 3 and mounting component 2 becomes particularly important. This not only enhances the structural strength and sealing performance of the battery, preventing damage to the battery from accidental collisions and compression, but also reduces the risk of battery explosion or leakage, ensuring that the battery box maintains good sealing performance under various conditions.

[0051] On the other hand, the connection between the mounting component 2 and the housing 1 is located inside the housing 1, and this part of the structure is relatively less susceptible to external impacts. Therefore, the number of the second fasteners 5 can be appropriately reduced according to actual application requirements and environmental conditions. Correspondingly, the number of the third fixing holes 22 on the mounting component 2 should also be appropriately reduced according to the reduction of the second fasteners 5, in order to maintain the rationality and economy of the overall structure.

[0052] Furthermore, special attention must be paid to the layout design between the first fixing hole 21 and the third fixing hole 22 to ensure their rationality and the distance between them. This is to avoid stress concentration in the structure and prevent potential structural weaknesses. To achieve this, the first fixing holes 21 should be evenly distributed on the contact surface between the panel 3 and the mounting member 2. For example, the first fixing holes 21 can be arranged on the side of the mounting member 2. This layout helps to disperse stress, thereby improving the overall structural stability. At the same time, the third fixing hole 22 can be considered to be set at the corner of the mounting member 2. This arrangement not only saves opening space but also provides more location options for the first fixing hole 21, thereby further optimizing the overall layout design and ensuring the structural stability and functionality.

[0053] See Figure 6 The battery box includes a second sealing ring 7, which surrounds the maintenance port 11 and abuts between the box body 1 and the panel 3.

[0054] In practical applications, to ensure the stability and reliability of the battery box, a second sealing ring 7 is specially designed and installed between the panel 3 and the box body 1. This additional sealing measure further enhances the overall sealing performance of the box body 1, ensuring the safety of the internal environment of the equipment. Even if the first-level seal fails, the second-level sealing ring can still function, effectively protecting the internal sensitive components from the influence of the external environment. This double-sealing design better protects the internal components, preventing damage caused by the intrusion of moisture, dust, or other contaminants. Therefore, the double sealing not only improves the protection capability of the equipment but also helps extend the service life of internal components, ensuring the long-term stable operation of electronic equipment.

[0055] In one embodiment, a second sealing groove is provided on the side of the panel 3 facing the housing 1, or the second sealing groove is provided on the side of the housing 1 facing the panel 3; the second sealing ring 7 is disposed in the second sealing groove.

[0056] In practical applications, a second sealing groove can be provided on panel 3 or housing 1. This additional groove is designed to install the second sealing ring 7. Through the careful design and tight fit between the second sealing groove and the second sealing ring 7, a more reliable and efficient sealing mechanism can be formed. This design not only ensures the integrity of the seal but also provides more stable protection against various environmental pressures and temperature changes. The first sealing ring 6 and the second sealing ring 7 work together to form a double-sealing structure. This dual protection measure further improves the overall reliability of the battery box, ensures battery safety, and extends battery life.

[0057] In one embodiment, the thickness of the first sealing ring 6 can be set between 4.5mm and 5.5mm, such as 5mm, 5.1mm, 5.2mm, 5.3mm, etc. The thickness of the first sealing ring 6 has a direct impact on the elastic deformation capability of the sealing material. If the thickness is too thin, it may be difficult to provide sufficient elastic deformation and sealing pressure, leading to leakage. If the thickness is too thick, it may cause difficulties in press-fitting or cause excessive assembly stress, affecting the service life. When the thickness is appropriate, it can ensure that the sealing ring obtains sufficient pre-compression during assembly, thereby generating the necessary sealing contact stress and ensuring effective sealing of the sealing interface. Therefore, setting the thickness of the first sealing ring 6 within this range can provide a good sealing effect.

[0058] It is understandable that the thickness of the second sealing ring 7 can also be set between 4.5mm and 5.5mm, such as 5mm, 5.1mm, 5.2mm, 5.3mm, etc., to achieve the same effect as described above.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0061] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A battery box, characterized in that, include: The enclosure has a maintenance port. The mounting component is connected to the housing. A panel, which covers the maintenance port and is connected to the mounting component; The battery box includes a first sealing ring, and the mounting component has a first sealing groove on the side facing the maintenance port, or the box body has a first sealing groove on the side facing the mounting component; the first sealing ring is installed in the first sealing groove.

2. The battery box according to claim 1, characterized in that, The mounting component is connected to the inside of the housing, and the panel covers the maintenance opening from the outside of the housing.

3. The battery box according to claim 2, characterized in that, The first sealing ring surrounds the maintenance port and abuts between the mounting component and the housing.

4. The battery box according to claim 1 or 3, characterized in that, The battery box includes a second sealing ring that surrounds the service port and abuts between the box body and the panel.

5. The battery box according to claim 4, characterized in that, The panel has a second sealing groove on the side facing the box body, or the box body has a second sealing groove on the side facing the panel; the second sealing ring is disposed in the second sealing groove.

6. The battery box according to claim 4, characterized in that, The thickness of the first sealing ring is 4.5mm to 5.5mm; and / or, the thickness of the second sealing ring is 4.5mm to 5.5mm.

7. The battery box according to any one of claims 1 to 3, characterized in that, The battery box includes a first fixing member, the mounting member having a plurality of first fixing holes along its circumference, and the panel having a plurality of second fixing holes along its circumference. The first fixing member passes through the first fixing holes and the second fixing holes to fix the panel and the mounting member; and / or, The battery box includes a second fixing member, the mounting member has a plurality of third fixing holes along its circumference, the box body has a plurality of fourth fixing holes, and the second fixing member passes through the fourth fixing holes and the third fixing holes to fix the mounting member and the box body.

8. The battery box according to claim 7, characterized in that, The first fixing component includes a fixing screw and a fixing nut. The fixing screw is connected to the mounting component. The rod of the fixing screw passes through the first fixing hole and the second fixing hole in sequence. The fixing nut is connected to the rod of the fixing screw from the outside of the panel.

9. The battery box according to claim 7, characterized in that, The number of the first fixing holes is greater than the number of the third fixing holes; the plurality of the third fixing holes are respectively provided at the corners of the mounting component, and the plurality of the first fixing holes are provided between two adjacent third fixing holes.

10. An energy storage system, characterized in that, The battery box and battery pack according to any one of claims 1 to 9 are provided, wherein the battery box has an installation space and the installation space is connected to the maintenance port, and the battery pack is installed in the installation space.

Images