Waterproof and moistureproof device of battery system

Abstract

The utility model discloses a waterproof and moistureproof device of a battery system, and relates to the technical field of battery protection. The battery box comprises a battery box, wherein an exhaust mechanism and a sealing mechanism are arranged on the battery box; the exhaust mechanism comprises a one-way assembly and an exhaust assembly, the one-way assembly comprises a sealing cover arranged on the battery box, the sealing cover is fixedly connected with a shell, the shell is provided with an air inlet inner cavity and a sliding groove, the sliding groove is slidably connected with a first limiting ring, and the first limiting ring is fixedly connected with a first spring. Through the exhaust mechanism, the elasticity of the first spring is utilized, the pressure in the battery box in a sealed state is increased through gas possibly generated during charging and discharging of the battery pack in the battery box, and when the gas pressure is increased to a certain degree, the sealing cylinder is driven to ascend to connect the connecting hole with the gas inlet inner cavity, so that the gas is conveniently exhausted; and external moisture is prevented from entering the battery box to influence the operation of the battery pack while one-way exhaust is completed, so that the sealing performance of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of battery protection technology, and in particular relates to a waterproof and moisture-proof device for a battery system. Background Technology

[0002] Battery systems, especially in high-energy-density applications (such as electric vehicles, energy storage systems, and portable electronic devices), need to ensure good performance and safety during operation. Moisture and humidity are among the main environmental threats to battery systems, which can seriously affect the structure, performance, and lifespan of the battery. Therefore, waterproof and moisture-proof technologies for battery systems are particularly important. In order to ensure the normal operation and long lifespan of the battery, waterproof and moisture-proof measures are usually taken to avoid the damage caused by moisture and humidity to the battery system.

[0003] However, some battery systems have relatively simple waterproof and moisture-proof devices. They completely seal the battery pack to achieve waterproof and moisture-proof functions, but do not have an exhaust component to release the small amount of gas that may be generated during the charging and discharging process. This single function can easily lead to excessive gas accumulation and pressure inside the device, which in turn affects the stable operation of the battery pack. Utility Model Content

[0004] The purpose of this utility model is to provide a waterproof and moisture-proof device for a battery system. By setting up an exhaust mechanism, the gas generated by the battery pack during charging and discharging can be used to increase the pressure inside the battery pack under sealed conditions. When the gas pressure increases to a certain extent, it drives the sealing cylinder to rise and connect the connection hole to the air inlet cavity, which facilitates the gas discharge. This solves the problem that completely sealing the battery pack can easily lead to excessive gas accumulation and pressure inside the device, which affects the stable operation of the battery pack.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a waterproof and moisture-proof device for a battery system, including a battery box, on which an exhaust mechanism and a sealing mechanism are provided;

[0007] The exhaust mechanism includes a one-way component and an exhaust component. The one-way component includes a sealing cover disposed on the battery box. An outer shell is fixedly connected to the inner wall of the sealing cover. An air intake cavity is opened on the bottom surface of the outer shell. A sliding groove is opened on the inner wall of the outer shell. A first limiting ring is slidably connected to the inner wall of the sliding groove. A first spring is fixedly connected to the top surface of the first limiting ring. The top end of the first spring is fixedly connected to the inner wall of the sliding groove.

[0008] Furthermore, the exhaust assembly includes a sealing cylinder fixedly connected to the outer wall of the first limiting ring, and the outer wall of the sealing cylinder has several connection holes.

[0009] Further, the inner wall of the shell is provided with an exhaust inner cavity, and the top end of the shell extends to the top surface of the shell and is provided with a plurality of exhaust holes.

[0010] Further, the sealing mechanism comprises a sealing assembly, a clamping assembly and a heat dissipation assembly, the sealing assembly comprises a second limiting ring fixedly connected to the bottom surface of the sealing cover, and the top surface of the battery box is fixedly connected with a rubber sealing ring.

[0011] Further, the clamping assembly comprises a plurality of L-shaped fixing plates fixedly connected to the bottom surface of the sealing cover, the outer wall of each of the L-shaped fixing plates is provided with a clamping groove, the inner wall of each of the L-shaped fixing plates is in sliding connection with the outer wall of the battery box, the outer wall of the battery box is provided with a plurality of spring grooves, and the inner wall of each of the spring grooves is fixedly connected with two second springs.

[0012] Further, the outer wall of each of the second springs is fixedly connected with a fixed block at a position away from each other, the outer wall of each of the fixed blocks is in sliding connection with the inner wall of the spring groove, the outer wall of each of the fixed blocks is fixedly connected with a clamping block, and the outer wall of each of the clamping blocks is in sliding connection with the inner wall of the clamping groove.

[0013] Further, the heat dissipation assembly comprises a plurality of supporting plates fixedly connected to the inner walls of the sealing cover and the battery box, and the bottom surface of the battery box is fixedly connected with a plurality of heat dissipation fins.

[0014] The utility model has the following beneficial effects:

[0015] 1. By setting up the exhaust mechanism, the elasticity of the first spring is utilized, the gas generated in the battery box during charging and discharging is used to increase the pressure in the battery box in the sealed state, and when the gas pressure increases to a certain degree, the sealing cylinder is lifted to connect the connecting hole with the air inlet inner cavity, the gas is discharged, the one-way exhaust is completed, the external moisture is prevented from entering the battery box to affect the operation of the battery pack, and the sealing property of the device is improved.

[0016] 2. By setting up the sealing mechanism, the elasticity of the second spring is utilized, the clamping block is clamped in the clamping groove of the L-shaped fixing plate, the sealing cover and the battery box are fixedly sealed, the rubber sealing ring and the second limiting ring are matched with each other, the battery pack is sealed in the battery box, the external moisture and humidity are prevented from entering the battery box to affect the operation of the battery pack, the waterproof and moisture-proof effect is achieved, and the practicability of the device is further improved.

[0017] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is a whole structure schematic view of the present application;

[0020] Figure 2 It is a local explosion structure schematic view of the present application;

[0021] Figure 3 It is a front view cross section structure schematic view of the present application;

[0022] Figure 4 It is Figure 3 It is an enlarged structure schematic view of A in the middle;

[0023] Figure 5 It is Figure 3 It is an enlarged structure schematic view of B in the middle.

[0024] In the drawings, the component list represented by each mark is as follows:

[0025] 1, battery box; 2, exhaust mechanism; 3, sealing mechanism; 21, sealing cover; 22, shell; 23, air inlet cavity; 24, sliding groove; 25, first limiting ring; 26, first spring; 27, sealing cylinder; 28, connecting hole; 29, exhaust cavity; 210, exhaust hole; 31, second limiting ring; 32, rubber sealing ring; 33, L-shaped fixed plate; 34, clamping groove; 35, spring groove; 36, second spring; 37, fixed block; 38, clamping block; 39, bearing piece; 310, heat dissipation fin. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0027] Please refer to Figures 1-5 The present application is a kind of waterproof and moisture-proof device of battery system, including battery box 1, battery box 1 is provided with exhaust mechanism 2 and sealing mechanism 3;

[0028] The exhaust mechanism 2 comprises a one-way assembly and an exhaust assembly, the one-way assembly comprises a sealing cover 21 arranged on the battery box 1, the inner wall of the sealing cover 21 is fixedly connected with a shell 22, the bottom surface of the shell 22 is provided with an air inlet cavity 23, the inner wall of the shell 22 is provided with a sliding groove 24, the inner wall of the sliding groove 24 is slidably connected with a first limiting ring 25, the top surface of the first limiting ring 25 is fixedly connected with a first spring 26, and the top end of the first spring 26 is fixedly connected with the inner wall of the sliding groove 24.

[0029] As shown in Figure 2 , Figure 3 and Figure 4 , the exhaust assembly comprises a sealing cylinder 27 fixedly connected to the outer wall of the first limiting ring 25, the outer wall of the sealing cylinder 27 is provided with a plurality of connecting holes 28, the inner wall of the shell 22 is provided with an exhaust cavity 29, and the top end of the shell 22 extends to the top surface of the shell 22 and is provided with a plurality of exhaust holes 210.

[0030] By arranging the exhaust mechanism 2, the elasticity of the first spring 26 is utilized to increase the pressure in the battery box 1 under the sealed state by the gas generated by the battery pack during charging and discharging, and when the gas pressure increases to a certain extent, the sealing cylinder 27 is driven to rise to connect the connecting holes 28 with the air inlet cavity 23, facilitating the exhaust of the gas. While achieving one-way exhaust, it also avoids the entry of external moisture into the battery box 1 to affect the operation of the battery pack, thereby improving the sealing performance of the device.

[0031] As shown in Figure 2 , Figure 3 and Figure 5 , the sealing mechanism 3 comprises a sealing assembly, a clamping assembly and a heat dissipation assembly, the sealing assembly comprises a second limiting ring 31 fixedly connected to the bottom surface of the sealing cover 21, the top surface of the battery box 1 is fixedly connected with a rubber sealing ring 32, the clamping assembly comprises a plurality of L-shaped fixing plates 33 fixedly connected to the bottom surface of the sealing cover 21, the outer wall of each of the plurality of L-shaped fixing plates 33 is provided with a clamping groove 34, the inner wall of each of the plurality of L-shaped fixing plates 33 is slidably connected with the outer wall of the battery box 1, the outer wall of the battery box 1 is provided with a plurality of spring grooves 35, the inner wall of each of the plurality of spring grooves 35 is fixedly connected with two second springs 36, the end of each of the plurality of second springs 36 away from each other is fixedly connected with a fixing block 37, the outer wall of each of the plurality of fixing blocks 37 is slidably connected with the inner wall of the spring groove 35, the outer wall of each of the plurality of fixing blocks 37 is fixedly connected with a clamping block 38, the outer wall of each of the plurality of clamping blocks 38 is slidably connected with the inner wall of the clamping groove 34, the heat dissipation assembly comprises a plurality of supporting plates 39 fixedly connected to the inner walls of the sealing cover 21 and the battery box 1, and the bottom surface of the battery box 1 is fixedly connected with a plurality of heat dissipation fins 310.

[0032] By setting the sealing mechanism 3, the elasticity of the second spring 36 is utilized to drive the clamping block 38 to be clamped in the clamping groove 34 of the L-shaped fixing plate 33, the sealing cover 21 and the battery box 1 are fixed and sealed, the rubber sealing ring 32 and the second limiting ring 31 cooperate with each other to seal the battery pack in the battery box 1, the external moisture and humidity are prevented from entering the battery box 1 to affect the operation of the battery pack, the waterproof and moisture-proof effect is achieved, and the practicability of the device is further improved.

[0033] One specific application of the embodiment is: by setting the exhaust mechanism 2, cooperating with the sealing mechanism 3, placing the battery pack between the receiving plates 39, then fixing and connecting the sealing cover 21 and the battery box 1, when the battery pack is charging and discharging, a small amount of gas may accumulate in the battery box 1, when the pressure in the battery box 1 increases to a certain degree, the pressure force is generated, the gas in the air inlet cavity 23 pushes against the inner wall of the sealing cylinder 27, the pressure drives the first limiting ring 25 on the sealing cylinder 27 to slide in the sliding groove 24, the first limiting ring 25 compresses the first spring 26, when the sealing cylinder 27 rises to a certain degree, the connecting hole 28 and the space of the air inlet cavity 23 are connected with each other, the gas accumulated in the air inlet cavity 23 enters the exhaust cavity 29 through the connecting hole 28, the reduction of the gas in the air inlet cavity 23 reduces the pressure in the sealed battery box 1, the pressure acting on the sealing cylinder 27 is reduced, the sealing cylinder 27 is driven by the elastic force of the first spring 26 to seal the air inlet cavity 23, the space connection between the connecting hole 28 and the air inlet cavity 23 is sealed, the one-way gas permeation treatment of the gas in the air inlet cavity 23 is completed, the gas in the exhaust cavity 29 is discharged through the exhaust hole 210, the exhaust function is completed, the elasticity of the first spring 26 is utilized, the pressure in the battery box 1 under the sealing state is increased by the gas generated by the battery pack in the battery box 1 during charging and discharging, when the gas pressure increases to a certain degree, the sealing cylinder 27 is driven to rise to connect the connecting hole 28 and the air inlet cavity 23, the gas is discharged, the one-way exhaust is completed, the external moisture is prevented from entering the battery box 1 to affect the operation of the battery pack, and the sealing property of the device is improved.

[0034] Through the sealing mechanism 3, the staff first places the battery pack in the battery box 1 in the receiving piece 39 for limiting and fixing, then drives the L-shaped fixing piece 33 on the sealing cover 21 to contact the outer wall of the four corners of the battery box 1, and slides the second limiting ring 31 into the inner wall of the battery box 1, at this time the L-shaped fixing piece 33 contacts the inclined surface of the clamping block 38, and the clamping block 38 drives the fixing block 37 to slide in the spring groove 35, and the fixing block 37 compresses the second spring 36, at this time the second spring 36 is in a compressed state, when the sealing cover 21 completely closes the battery box 1, the sealing cover 21 contacts the rubber sealing ring 32, and under the elastic force of the second spring 36, the clamping block 38 is driven by the fixing block 37 to slide into the clamping groove 34, the fixing and limiting of the L-shaped fixing piece 33 are completed, the sealing cover 21 is driven by the L-shaped fixing piece 33 to tightly seal the battery box 1, and the battery pack is sealed in the battery box 1, so that the outside humid gas is prevented from entering the battery box 1 to affect the operation of the battery pack, when the sealing cover 21 needs to be opened, the clamping block 38 is pressed, and the sealing cover 21 can be opened, wherein the heat dissipation fins 310 are arranged on the bottom surface of the battery box 1, the heat generated during the operation of the battery pack in the battery box 1 is conducted to the heat dissipation fins 310 through the receiving piece 39 and the battery box 1, the heat is conducted and dispersed by the heat dissipation fins 310 which sufficiently contact the outside air, the heat dissipation effect is achieved, the clamping block 38 is clamped in the clamping groove 34 of the L-shaped fixing piece 33 by the elasticity of the second spring 36, the sealing and fixing between the sealing cover 21 and the battery box 1 are completed, the rubber sealing ring 32 and the second limiting ring 31 cooperate with each other to seal the battery pack in the battery box 1, the outside moisture and humidity are prevented from entering the battery box 1 to affect the operation of the battery pack, the waterproof and moisture-proof effect is achieved, and the practicability of the device is further improved.

[0035] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A waterproof and moisture-proof device for a battery system, characterized by: Including battery box (1), be provided with exhaust mechanism (2) and sealing mechanism (3) on the battery box (1); The exhaust mechanism (2) includes a one-way assembly and an exhaust assembly, the one-way assembly includes a sealing cover (21) provided on the battery box (1), the inner wall of the sealing cover (21) is fixedly connected with a shell (22), the bottom surface of the shell (22) is provided with an air inlet cavity (23), the inner wall of the shell (22) is provided with a sliding groove (24), the inner wall of the sliding groove (24) is slidably connected with a first limiting ring (25), the top surface of the first limiting ring (25) is fixedly connected with a first spring (26), and the top end of the first spring (26) is fixedly connected with the inner wall of the sliding groove (24).

2. The waterproof and moisture-proof device of a battery system according to claim 1, characterized by, The exhaust assembly includes a sealing cylinder (27) fixedly connected to the outer wall of the first limiting ring (25), and a plurality of connecting holes (28) are formed in the outer wall of the sealing cylinder (27).

3. The waterproofing and moisture-proofing device of a battery system according to claim 1, wherein The inner wall of the shell (22) is provided with an exhaust cavity (29), and the top end of the shell (22) extends to the top surface of the shell (22) and is provided with a plurality of exhaust holes (210).

4. The waterproofing and moisture-proofing device of a battery system according to claim 1, wherein The sealing mechanism (3) includes a sealing assembly, a clamping assembly and a heat dissipation assembly, the sealing assembly includes a second limiting ring (31) fixedly connected to the bottom surface of the sealing cover (21), and the top surface of the battery box (1) is fixedly connected with a rubber sealing ring (32).

5. The waterproofing and moisture-proofing device of a battery system according to claim 4, wherein The clamping assembly includes a plurality of L-shaped fixing plates (33) fixedly connected to the bottom surface of the sealing cover (21), the outer wall of each of the plurality of L-shaped fixing plates (33) is provided with a clamping groove (34), the inner wall of each of the plurality of L-shaped fixing plates (33) is slidably connected with the outer wall of the battery box (1), the outer wall of the battery box (1) is provided with a plurality of spring grooves (35), and the inner wall of each of the plurality of spring grooves (35) is fixedly connected with two second springs (36).

6. The waterproofing and moisture-proofing device of a battery system according to claim 5, wherein The outer wall of each of the plurality of second springs (36) is slidably connected with the inner wall of the spring groove (35), the outer wall of each of the plurality of second springs (36) is fixedly connected with a clamping block (38), and the outer wall of each of the plurality of clamping blocks (38) is slidably connected with the inner wall of the clamping groove (34).

7. The waterproofing and moisture-proofing device of a battery system according to claim 4, wherein The heat dissipation assembly includes a plurality of supporting plates (39) fixedly connected to the inner walls of the sealing cover (21) and the battery box (1), and the bottom surface of the battery box (1) is fixedly connected with a plurality of heat dissipation fins (310).

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