Condensation prevention device in battery pack and mounting structure of condensation prevention device

Abstract

The utility model relates to the technical field of new energy battery production, and discloses an internal anti-condensation device for a battery pack, which comprises a waterproof sheath, the waterproof sheath is big-end-down, the interior of the waterproof sheath is of a hollow structure, the top of the waterproof sheath is provided with a wire harness through hole for a wire harness to pass through, and the lower part of the waterproof sheath is provided with a plug hole for covering a wire harness connector plug. The utility model further discloses a mounting structure of the anti-condensation device in the battery pack. According to the anti-condensation device in the battery pack and the mounting structure of the anti-condensation device, a battery management system is effectively prevented from being damaged by condensation.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery production technology, specifically to an anti-condensation device inside a battery pack and its installation structure. Background Technology

[0002] As the volumetric energy density requirements of new energy battery packs increase, the space utilization within the battery pack is receiving more and more attention, leading to a compression of the placement space for the battery management system. In most cases, the battery management system needs to be placed vertically within the battery pack, which raises two issues:

[0003] 1. Condensation dripping from the top cover of the battery management system into the battery management system can cause electrochemical corrosion, leading to insulation failure and disconnection of the internal circuits.

[0004] 2. Condensation on other parts of the battery pack cover may fall onto the wiring harness and into the battery management system under severe vehicle operating conditions, causing the battery management system to malfunction.

[0005] Therefore, there is an urgent need for a solution that can effectively prevent condensation from damaging the battery management system when it is placed vertically, and ensure that the battery pack will not be affected by condensation under various harsh operating conditions. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of the aforementioned technologies by providing an anti-condensation device and its installation structure inside a battery pack, effectively preventing condensation from damaging the battery management system.

[0007] To achieve the above objectives, the battery pack internal anti-condensation device designed in this utility model includes a waterproof sleeve. The waterproof sleeve is smaller at the top and larger at the bottom, with a hollow internal structure. The top is provided with a wire harness through hole for the wire harness to pass through, and the bottom is provided with a plug hole covering the wire harness connector plug.

[0008] Preferably, the wire harness through-hole is located on the side of the top of the waterproof sheath to better prevent condensation from entering the wire harness connector plug.

[0009] Preferably, the size of the plug hole is larger than the size of the wire harness connector plug, providing better coverage and protection.

[0010] Preferably, it also includes a water-absorbing foam located directly above the battery management system, the size of which covers the product area of ​​the battery management system, protecting the battery management system from condensation dripping down and damaging its use.

[0011] Preferably, the absorbent foam has a thickness of 2-3 mm and is made of PU material.

[0012] Preferably, the waterproof sleeve is elastic and waterproof, and can be stably fixed to the wire harness connector plug, effectively protecting the connector from contact with water.

[0013] Preferably, the waterproof sheath is 1-2 mm thick and made of PVC.

[0014] An installation structure for an anti-condensation device inside the battery pack, wherein a waterproof sheath is fitted over and fixed to the end of a wire harness connector plug, the wire harness passes through the wire harness through hole, the wire harness and the wire harness through hole are sealed and fixed by a wire harness covering, and the plug hole covers the top of the wire harness connector plug.

[0015] Preferably, it also includes a water-absorbing foam disposed directly above the battery management system, the size of which covers the product area of ​​the battery management system.

[0016] Preferably, the absorbent foam is installed inside the top cover, which is easy to operate and improves the efficiency of battery packaging.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] 1. Effectively prevents condensation from damaging the battery management system;

[0019] 2. After the connectors are assembled, fix the end of the waterproof sheath to the connector plug of the wire harness to ensure that the connector of the battery management system is waterproof during the use of the battery pack.

[0020] 3. The waterproof sleeve protects the battery management system socket and wiring harness connector plug together, effectively solving the problem of condensation splashing and falling under various driving conditions;

[0021] 4. The waterproof sleeve itself has a certain degree of elasticity, which can be stably fixed on the connector plug of the wire harness, and protect the connector from contact with water.

[0022] 5. The top cover integrates absorbent foam, making operation simple, improving battery packing efficiency, and protecting the battery management system from condensation dripping down and damaging it. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the waterproof sheath in the anti-condensation device inside the battery pack of this utility model;

[0024] Figure 2 This is a schematic diagram of the wire harness connector structure;

[0025] Figure 3 A schematic diagram showing the installation of a waterproof sheath on a wire harness connector;

[0026] Figure 4 This is a schematic diagram of the installation of the anti-condensation device inside the battery pack of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Waterproof sheath, 2-Wire harness, 3-Wire harness through hole, 4-Wire harness connector plug, 5-Plug hole, 6-Battery management system, 7-Absorbent foam, 8-Wire harness covering, 9-Top cover, 10-Battery management system socket. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Example 1

[0033] like Figure 1 As shown, a battery pack internal anti-condensation device includes a waterproof sleeve 1, which is smaller at the top and larger at the bottom, and has a hollow structure inside. The top is provided with a wire harness through hole 3 for the wire harness 2 to pass through, and the bottom is provided with a plug hole 5 covering the wire harness connector plug 4.

[0034] When using this embodiment, in conjunction with Figure 1 , Figure 2 and Figure 3As shown, the waterproof sleeve 1 is fitted onto and fixed to the end of the wire harness connector plug 4. The wire harness 2 passes through the wire harness through hole 3. The wire harness 2 and the wire harness through hole 3 are sealed and fixed by the wire harness covering material 8. The plug hole 5 covers the top of the wire harness connector plug 4 to provide waterproofing. After the wire harness connector plug 4 is assembled with the battery management system socket 10, the waterproof sleeve 1 completely protects the battery management system socket 10, preventing condensation from entering the battery management system interior 6.

[0035] Example 2

[0036] like Figure 1 As shown, a battery pack internal anti-condensation device includes a waterproof sleeve 1, which is smaller at the top and larger at the bottom, and has a hollow structure inside. The top is provided with a wire harness through hole 3 for the wire harness 2 to pass through, and the bottom is provided with a plug hole 5 covering the wire harness connector plug 4.

[0037] In this embodiment, the wire harness through hole 3 is located on the side of the top of the waterproof sheath 1 to better prevent condensation from entering the wire harness connector plug 4, and the size of the plug hole 5 is larger than the size of the wire harness connector plug 4 to provide better coverage protection.

[0038] The waterproof sleeve 1 is elastic and waterproof, and can be stably fixed on the wire harness connector plug 4, effectively protecting the connector from contact with water. The thickness of the waterproof sleeve 1 is 1-2 mm. In this embodiment, the thickness is 1 mm, and it is made of PVC material.

[0039] When using this embodiment, in conjunction with Figure 1 , Figure 2 and Figure 3 As shown, the waterproof sleeve 1 is fitted onto and fixed to the end of the wire harness connector plug 4. The wire harness 2 passes through the wire harness through hole 3. The wire harness 2 and the wire harness through hole 3 are sealed and fixed by the wire harness covering material 8. The plug hole 5 covers the top of the wire harness connector plug 4 to provide waterproofing. After the wire harness connector plug 4 is assembled with the battery management system socket 10, the waterproof sleeve 1 completely protects the battery management system socket 10, preventing condensation from entering the battery management system interior 6.

[0040] Example 3

[0041] like Figure 1 As shown, a battery pack internal anti-condensation device includes a waterproof sleeve 1, which is smaller at the top and larger at the bottom, and has a hollow structure inside. The top is provided with a wire harness through hole 3 for the wire harness 2 to pass through, and the bottom is provided with a plug hole 5 covering the wire harness connector plug 4.

[0042] In this embodiment, the wire harness through hole 3 is located on the side of the top of the waterproof sheath 1 to better prevent condensation from entering the wire harness connector plug 4, and the size of the plug hole 5 is larger than the size of the wire harness connector plug 4 to provide better coverage protection.

[0043] The waterproof sleeve 1 is elastic and waterproof, and can be stably fixed on the wire harness connector plug 4, effectively protecting the connector from contact with water. The thickness of the waterproof sleeve 1 is 1-2 mm. In this embodiment, the thickness is 1 mm, and it is made of PVC material.

[0044] In this embodiment, a water-absorbing foam 7 is also provided directly above the battery management system 6. The size of the water-absorbing foam 7 covers the product area of ​​the battery management system 6. The thickness of the water-absorbing foam 7 is 2-3 mm. In this embodiment, the thickness is 2 mm and it is made of PU material.

[0045] When using this embodiment, in conjunction with Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the waterproof sleeve 1 is fitted onto and fixed to the end of the wire harness connector plug 4. The wire harness 2 passes through the wire harness through hole 3. The wire harness 2 and the wire harness through hole 3 are sealed and fixed by the wire harness covering material 8. The plug hole 5 covers the top of the wire harness connector plug 4 to provide waterproofing. After the wire harness connector plug 4 is assembled with the battery management system socket 10, the waterproof sleeve 1 completely protects the battery management system socket 10, preventing condensation from entering the battery management system interior 6.

[0046] Meanwhile, the size of the absorbent foam 7 covers the product area of ​​the battery management system 6, and the absorbent foam 7 is installed inside the top cover 9.

[0047] This utility model relates to an internal anti-condensation device and its installation structure for the battery pack, which effectively prevents condensation from damaging the battery management system 6. After the connectors are assembled, the tail of the waterproof sleeve 1 is fixed to the wire harness connector plug 4, ensuring that the connector of the battery management system 6 remains waterproof during use. The waterproof sleeve 1 protects both the battery management system socket 10 and the wire harness connector plug 4, effectively solving the problem of condensation splashing and falling under various driving conditions. The waterproof sleeve 1 itself has a certain degree of elasticity, allowing it to be stably fixed to the wire harness connector plug 4, protecting the connector from contact with water. The top cover 9 integrates absorbent foam 7, making operation simple, improving battery pack assembly efficiency, and protecting the top of the battery management system 6 from condensation dripping and damaging it.

[0048] It should be noted that the above description of the technical solutions is exemplary, and this specification may be embodied in different forms and should not be construed as limiting it to the technical solutions set forth herein. Rather, providing these descriptions will ensure that the disclosure of this utility model is thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the technical solutions of this utility model are defined only by the scope of the claims.

[0049] The shapes, dimensions, ratios, angles, and figures disclosed in the description of various aspects of this specification and claims are merely examples, and therefore, this specification and claims are not limited to the details shown. In the following description, detailed descriptions of relevant known functions or configurations will be omitted where it would be determined that they unnecessarily obscure the focus of this specification and claims.

[0050] When using the terms “comprising,” “having,” and “including” as described in this specification, there may be another part or other part unless used, and the terms used are generally singular but may also be plural.

[0051] It should be noted that although various components may appear and be described in this specification using terms such as "first," "second," "top," "bottom," "one side," "the other side," "one end," "the other end," etc., these components and parts should not be limited by these terms. These terms are only used to distinguish one component and part from another. For example, without departing from the scope of this specification, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component; top and bottom components may, under certain circumstances, be interchanged or converted; and components at one end and the other end may have the same or different performance characteristics.

[0052] When describing positional relationships, for example, when the positional order is described as "on," "above," "below," and "next," situations where they are not in contact or are in contact may be included, unless words or terms such as "exactly" or "directly" are used. If it is mentioned that the first element is "on" the second element, it does not mean that the first element must be above the second element in the drawing. The upper and lower parts of the components will change depending on the viewing angle and orientation. Therefore, in the drawings or in the actual construction, situations where the first element is "on" the second element can include situations where the first element is "below" the second element and situations where the first element is "above" the second element. When describing temporal relationships, situations where the steps are not consecutive may be included when describing "after," "following," "subsequently," and "before," unless "exactly" or "directly" is used. Features of various embodiments of this invention can be combined or spliced ​​together in part or in whole, and can be implemented in various different configurations as will be fully understood by those skilled in the art. Embodiments of this invention can be implemented independently of each other or together in an interdependent relationship.

[0053] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A battery pack internal anti-condensation device, comprising a waterproof sheath (1), characterized in that: The waterproof sheath (1) is smaller at the top and larger at the bottom, with a hollow structure inside. The top is provided with a wire harness through hole (3) for the wire harness (2) to pass through, and the bottom is provided with a plug hole (5) covering the wire harness connector plug (4). It also includes a water-absorbing foam (7) located directly above the battery management system (6). The size of the water-absorbing foam (7) covers the product area of ​​the battery management system (6).

2. The anti-condensation device inside the battery pack as described in claim 1, characterized in that: The wire harness through-hole (3) is located on the side of the top of the waterproof sheath (1).

3. The anti-condensation device inside the battery pack as described in claim 1, characterized in that: The size of the plug hole (5) is larger than the size of the wire harness connector plug (4).

4. The anti-condensation device inside the battery pack as described in claim 1, characterized in that: The absorbent foam (7) has a thickness of 2-3 mm and is made of PU material.

5. The anti-condensation device inside the battery pack as described in claim 1, characterized in that: The waterproof sheath (1) is elastic and waterproof.

6. The anti-condensation device inside the battery pack as described in claim 1, characterized in that: The waterproof sheath (1) is 1-2 mm thick and is made of PVC.

7. An installation structure for an anti-condensation device inside a battery pack as described in claim 1, characterized in that: The waterproof sheath (1) is fitted over and fixed to the end of the wire harness connector plug (4). The wire harness (2) passes through the wire harness through hole (3). The wire harness (2) and the wire harness through hole (3) are sealed and fixed by the wire harness covering (8). The plug hole (5) covers the wire harness connector plug (4).

8. The installation structure of the anti-condensation device inside the battery pack as described in claim 7, characterized in that: It also includes a water-absorbing foam (7) located directly above the battery management system (6), the size of which covers the product area of ​​the battery management system (6).

9. The installation structure of the anti-condensation device inside the battery pack as described in claim 7, characterized in that: The absorbent foam (7) is installed inside the top cover (9).

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