Dry-wet area separation immersion type battery box

Abstract

This utility model discloses a dry-wet zone separated immersion battery box, comprising a battery box; the battery box includes: a dry zone, mainly for installing electrical communication connection components, power lines, fuses, one-way pressure relief ports, and other various electronic devices; and a wet zone, mainly for housing battery modules, data acquisition lines, synthetic oil, and liquid cooling channels for cooling. The dry-wet separation effectively avoids the risk of damage to some components due to humid environments and material incompatibility, reducing corrosion and leakage malfunctions. The dry-wet zone separation of this utility model not only cools the battery but also solves the frequent leakage problems encountered in current immersion batteries, greatly improving economic practicality and safety.

Description

Technical Field

[0001] This utility model relates to the field of batteries, specifically a dry and wet zone separated immersion battery box. Background Technology

[0002] Battery modules generate heat during charging and discharging. Excessive temperature and uneven localized temperature distribution within the battery can severely reduce battery life. The heat dissipation performance of the battery module is a crucial factor affecting battery performance, efficiency, lifespan, and safety. Currently, existing liquid-cooled battery box structures use cooling channels at the bottom for heat dissipation. However, this results in uneven cell temperatures, with large localized temperature variations, significantly reducing the battery's operating temperature range and the overall energy efficiency of the battery box, shortening battery life, and potentially posing safety hazards. Although immersion battery boxes are currently under development and testing, oil leakage issues prevent large-scale application. Immersion battery boxes, however, offer advantages that air-cooled and liquid-cooled battery boxes lack, such as uniform cooling and high safety, making them a promising direction for energy storage and automotive battery development.

[0003] Existing submersible battery boxes use oil circulation for cooling, immersing all components, including electrical parts and seals, inside the battery box. This has many drawbacks, such as complex oil circulation paths, compatibility issues between seals and oil, and the inherent properties of materials, which can lead to oil leakage, difficult after-sales service, and high costs. Utility Model Content

[0004] The purpose of this invention is to provide a dry and wet zone separated immersion battery box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A dry and wet zone separated submersible battery box includes a battery box; the battery box includes a box body and a box cover that are interlocked, and the box body and the box cover are fixedly connected by bolts;

[0007] The internal components of the box are:

[0008] The dry area is mainly used to install electrical and communication connection components, power lines, fuses, one-way pressure relief ports, and other electronic devices.

[0009] The wet area is mainly used to house battery modules, data acquisition lines, synthetic oil, and liquid cooling channels for cooling.

[0010] The dry and wet areas are separated by a partition.

[0011] A sealing block is provided at the bottom of the box cover corresponding to the position of the partition. A sealing groove is also provided at the bottom of the sealing block. The sealing block is inserted into the box body when the box body and the box cover are fastened together, and the top of the partition is inserted into the sealing groove. Sealant is also filled between the top of the partition and the sealing groove for further sealing.

[0012] The sealing block has grooves for the positive and negative aluminum busbars of the battery module and the voltage and temperature acquisition wires to pass through, and the wires and positive and negative aluminum busbars are sealed with sealant when they pass through.

[0013] Furthermore, the partition is made of aluminum alloy or stainless steel.

[0014] Furthermore, the partition can also be a profile.

[0015] Furthermore, the partition is welded and sealed to the inner wall of the battery box.

[0016] Furthermore, the weld between the separator and the battery box is filled with sealant.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model uses a partition to separate the internal dry and wet areas of the battery box, which can effectively avoid the risk of some components being damaged by humid environments and material incompatibility, and reduce the occurrence of failures such as corrosion and leakage. Attached Figure Description

[0019] Figure 1 This is an exploded view of a wet and dry zone separated immersion battery box.

[0020] Figure 2 This is a schematic diagram of a dry and wet zone separated immersion battery box.

[0021] Figure 3 This is a schematic diagram of the structure of a dry-wet zone separated immersion battery box.

[0022] Figure 4 This is a top view of the casing in a wet and dry zone separated immersion battery box.

[0023] Figure 5 for Figure 4 Sectional view along the AA direction.

[0024] Figure 6 This is a schematic diagram of the cover structure of a wet and dry zone separated immersion battery box from another angle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] Please see Figure 1-6 A dry and wet zone separated immersion battery box, including battery box 1;

[0027] The battery box 1 includes a box body 101 and a box cover 102 that are interlocked with each other, and the box body 101 and the box cover 102 are fixedly connected by bolts;

[0028] The interior of box 101 is divided into:

[0029] Dry Zone 2 is mainly used for installing electrical and communication connection components, power lines, fuses, one-way pressure relief ports, and other electronic devices.

[0030] Wet Zone 3 is mainly used to house battery modules, data acquisition lines, synthetic oil, and liquid cooling channels for cooling.

[0031] The dry area 2 and the wet area 3 are separated by a partition 4, which is made of aluminum alloy or stainless steel.

[0032] In some embodiments of this solution, the partition 4 may also be a profile;

[0033] In this solution, the partition 4 is welded and sealed to the inner wall of the battery box 1; in a further embodiment of this solution, the weld between the partition 4 and the battery box 1 is filled with sealant to further seal the weld, ensuring the long-term protection level of IP68 and ensuring complete separation of dry and wet areas.

[0034] Meanwhile, in this solution, in order to ensure the sealing effect between the top of the partition 4 and the box cover 102, a sealing block 103 is provided at the bottom of the box cover 102 corresponding to the position of the partition 4. A sealing groove 104 is also provided at the bottom of the sealing block 103. When the box body 101 and the box cover 102 are fastened together, the sealing block 103 is inserted into the box body 101, and the top of the partition 4 is inserted into the sealing groove 104. The top of the partition 4 and the sealing groove 104 are also filled with sealant for further sealing.

[0035] In this solution, there is a certain distance between the separator 4 and the top of the battery box. The positive and negative aluminum busbars of the battery module and the voltage and temperature acquisition harnesses are directly connected to the dry area from above the separator. This can ensure the integrity of the separator and the overall sealing is not compromised. Reducing the number of connection points reduces the risk of leakage.

[0036] In this configuration, the sealing block 103 has a groove 105 for the positive and negative aluminum busbars of the battery module and the voltage and temperature acquisition wire harness to pass through, and the wire harness and the positive and negative aluminum busbars are sealed with sealant when they pass through.

[0037] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connect" should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A wet and dry zone separated immersion battery box, comprising a battery box; characterized in that, The battery box includes a box body and a box cover that are interlocked, and the box body and the box cover are fixedly connected by bolts; The internal components of the box are: In the dry area, install electrical communication connection components, power lines, fuses, and one-way pressure relief ports; The wet zone is used to house battery modules, data acquisition lines, synthetic oil, and liquid cooling channels for cooling. The dry and wet areas are separated by a partition; A sealing block is provided at the bottom of the box cover corresponding to the position of the partition. A sealing groove is also provided at the bottom of the sealing block. The sealing block is inserted into the box body when the box body and the box cover are fastened together, and the top of the partition is inserted into the sealing groove. Sealant is also filled between the top of the partition and the sealing groove for further sealing. The sealing block has grooves for the positive and negative aluminum busbars of the battery module and the voltage and temperature acquisition wire harness to pass through, and the wire harness and the positive and negative aluminum busbars are sealed with sealant when they pass through.

2. The wet and dry zone separated immersion battery box according to claim 1, characterized in that, The partition is made of either aluminum alloy or stainless steel.

3. The wet and dry zone separated immersion battery box according to claim 1, characterized in that, The partition is a profile.

4. The wet and dry zone separated immersion battery box according to claim 1, characterized in that, The partition is welded and sealed to the inner wall of the battery box.

5. A wet and dry zone separated immersion battery box according to claim 4, characterized in that, The weld between the separator and the battery box is filled with sealant.

Images