CN216750135U

CN216750135U - Power battery box condensation-proof structure for electric ship

Info

Publication number: CN216750135U
Application number: CN202122920332.XU
Authority: CN
Inventors: 丁志友; 周用华; 陈云
Original assignee: Shanghai Yikong Power System Co ltd
Current assignee: Shanghai Yikong Power System Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-06-14
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a power battery box prevents condensation structure for electric ship, including lower box and upper cover, be equipped with electric core module in the lower box, the inner wall facing of lower box inner chamber has one deck condensation control material, and condensation control material is the soft material of slice, pastes on the inner wall of box inner chamber is surperficial under through the structure glue, is equipped with respiratory balance valve and explosion-proof valve on the one end lateral wall of lower box. In the design of a marine lithium ion power battery box, on the basis of the traditional system integration design scheme, the breathing balance valve and the condensation control material are matched for use, so that the purposes of balancing the internal and external air pressures of a box body and avoiding damage to the sealing function of a system and a connector when the temperature is alternated in an outside season and day and night are achieved; and the phenomenon of condensation inside the box body can be avoided, so that local internal short circuit, high-voltage insulation performance reduction and even failure of the system are caused, and the use safety and technical reliability of the battery system are ensured.

Description

Power battery box condensation-proof structure for electric ship

Technical Field

The utility model belongs to the technical field of power battery prevents the condensation scheme and specifically relates to a condensation structure is prevented to power battery box for electric ship, in particular to its mechanical connection structure.

Background

With the rapid development of the electromotion in the national ship field, a large number of lithium batteries with high specific energy and specific power are applied to the design of a ship power system. The temperature and humidity change of the ship operation environment has great influence, and in order to ensure the use safety of the power battery in the cabin open environment, the system design needs to meet the corresponding requirements of watertight and dust density grades. And the external season and day and night alternate lead to the fact that the internal air pressure of the system changes when the temperature alternates, and the system and the high-low pressure connector are damaged and lose efficacy for a long time. The general design scheme is that a breathing balance valve component communicated with internal and external air pressures is added on the thin wall of a box body, but the design can not radically solve the condensation phenomenon generated inside during temperature alternation.

When traditional marine power battery box system causes the temperature sudden change season with round the clock alternation, if inside humid air is untimely the outside condensation point that probably reaches of discharge box forms the dewing, then causes the local internal short circuit of system, high-voltage insulation performance reduction or even inefficacy, still can cause corrosion damage to relevant electronic components simultaneously, influences battery system security and reliability.

The breathing balance valve mainly used for slowly and dynamically balancing the air pressure inside and outside the battery box body cannot effectively discharge excessive moisture inside the battery box body after the condensation point changes in time, and the problem of internal condensation is difficult to effectively avoid.

Therefore, a design scheme for preventing condensation of the novel marine power battery box, which can balance internal and external air pressure and avoid internal condensation for a long time, needs to be designed.

Disclosure of Invention

An object of the utility model is to provide a condensation structure is prevented to power battery box for electric ship improves battery system safety in utilization and technical reliability, has overcome the shortcoming and not enough that exist among the prior art.

In order to realize the purpose, the technical scheme of the utility model is that: the utility model provides a power battery box prevents condensation structure for electric ship, includes box and upper cover down, is equipped with electric core module in the lower box, and the inner wall facing of lower box inner chamber has one deck condensation control material, and condensation control material is the soft material of slice, pastes on the inner wall surface of box inner chamber down through the structure glue, is equipped with respiratory balance valve and explosion-proof valve on the one end lateral wall of lower box, and electric core module department is equipped with rather than electrical connection's sampling unit, is equipped with the sealing washer down between box and the upper cover.

The utility model discloses a power battery box condensation-proof structure for an electric ship, which can balance the air pressure inside and outside a box body and avoid damaging the sealing function of a system and a connector by matching a breathing balance valve and a condensation control material for use on the basis of the traditional system integration design scheme in the design of a marine lithium ion power battery box when the temperature alternation is caused by the alternation of the breathing balance valve and the condensation control material in the outside season and day and night; and the phenomenon of condensation inside the box body can be avoided, so that local internal short circuit, high-voltage insulation performance reduction and even failure of the system are caused, and the use safety and technical reliability of the battery system are ensured.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

The utility model discloses a power battery box anti-condensation structure for electric ship, it lies in different from prior art: as shown in fig. 1, including lower box 1 and upper cover 2, be equipped with electric core module 3 in the lower box 1, the inner wall of lower box 1 inner chamber is attached to have one deck condensation control material 4, condensation control material 4 is the soft material of slice, paste on the inner wall surface of box 1 inner chamber down through the structural adhesive, be equipped with breathing balance valve 5 and explosion-proof valve 6 on the one end lateral wall of lower box 1, electric core module 3 department is equipped with rather than electrically connected's sampling unit 7, be equipped with sealing washer 8 between lower box 1 and the upper cover 2.

In specific implementation, a high-low voltage connector 10 is further disposed on a side wall of one end of the lower box 1, and the high-low voltage connector 10 is connected to the cell module 3 through a wire harness assembly 11.

In specific implementation, a supporting beam 9 is formed on the bottom plate surface of the inner cavity of the lower case 1, and the cell module 3 is arranged on the upper portion of the supporting beam 9.

In specific implementation, a fuse 12 is arranged on the side wall of the other end of the lower box body 1.

In specific implementation, the condensation control material 4 is made of an intelligent humidity control material, and along with the change of the ambient temperature, when the relative humidity of air in the box is greater than a material control value, the humidity control material can suck water vapor in the air, and meanwhile, part of moisture can be discharged out of the box body along with the respiration balance valve, so that condensation is prevented; on the contrary, the moisture control material releases water vapor, so that the purposes of no need of over-wet replacement and cyclic application are achieved. The condensation control material is more effective than the traditional drying agent products in the phenomena of fogging and condensation caused by rapid temperature change, has a moisture releasing function, does not need to be periodically replaced, and can greatly prolong the service life.

When the condensation control material is specifically implemented, the condensation control material is a flaky soft material and is adhered to the inner surface of the battery box body through structural adhesive, and the specific size can be determined through theoretical calculation and experimental tests. The condensation control material is a product in the prior art, can be a product produced by Ningbo Baole new material company Limited, adopts HCCF antifogging humidity control and humidifying fiber material, and can automatically realize bidirectional reversible moisture absorption and release functions when the temperature and the humidity of a semi-closed or closed environment change, efficiently control the humidity in the environment and inhibit the generation of fog and condensation. The unique moisture absorption fiber framework is used as a water delivery pipeline, and the reservoir effect formed by matching the moisture absorption fiber framework with the microporous material ensures the bidirectional reversibility of the material. The HCCF50-C-2.5 series products can absorb 100% of their own weight of water vapor.

In the design of the marine lithium ion power battery box, the breathing balance valve and the condensation control material are used in a matched manner, so that the internal and external air pressures of the box body can be balanced and the sealing function of a system and a connector is prevented from being damaged when the temperature is alternated in an outside season and day and night; and the condensation phenomenon in the box body can be avoided.

The foregoing is a more detailed description of the invention, taken in conjunction with the accompanying preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described above. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. The utility model provides a condensation structure is prevented to power battery box for electric ship which characterized in that: including box (1) and upper cover (2) down, be equipped with electric core module (3) in box (1) down, the inner wall facing of box (1) inner chamber has one deck condensation control material (4) down, condensation control material (4) are the soft material of slice, it is surperficial at the inner wall of box (1) inner chamber down to paste through the structural adhesive, be equipped with on the one end lateral wall of box (1) down and breathe balanced valve (5) and explosion-proof valve (6), electric core module (3) department is equipped with rather than electrical connection's sampling unit (7), be equipped with sealing washer (8) down between box (1) and upper cover (2).

2. The power battery box anti-condensation structure for the electric ship according to claim 1, characterized in that: still be equipped with high-low voltage connector (10) on the one end lateral wall of lower box (1), high-low voltage connector (10) are connected with electric core module (3) through pencil assembly (11).

3. The power battery box anti-condensation structure for the electric ship according to claim 1, characterized in that: the surface of the bottom plate of the inner cavity of the lower box body (1) forms a supporting beam (9), and the battery cell module (3) is arranged on the upper portion of the supporting beam (9).

4. The power battery box anti-condensation structure for the electric ship according to claim 1, characterized in that: and a fuse (12) is arranged on the side wall of the other end of the lower box body (1).