Breathable valve with humidity control function

Abstract

The utility model discloses a ventilation valve with a humidity control function. The ventilation valve comprises a valve body, ventilation film paper, an end cover, humidity control fibers and a bottom cover. The valve body is of a hollow cavity structure with the two ends open, and the valve body is provided with a threaded connection end and a waterproof ventilation end. The breathable film paper is attached to the waterproof breathable end of the valve body; the end cover covers the waterproof ventilation end of the valve body; a containing cavity is formed in the threaded connection end of the valve body, and the humidity control fiber is inserted into the containing cavity. The bottom cover covers the threaded connection end of the valve body and blocks the containing cavity, and a vent hole is formed in the bottom cover. The humidity control material is embedded in the ventilation valve, so that the hydrophilic and hydrophobic conversion can be realized at normal temperature, the internal and external pressure difference during the operation of the motor is solved, the condensation phenomenon can be reduced or avoided, the service life of the product is prolonged, and the safety performance of the product is improved.

Description

Technical Field

[0001] This utility model relates to the field of waterproof and breathable valve technology, and in particular to a breathable valve with moisture control function. Background Technology

[0002] When a car's electric motor is running, temperature gradients are created due to temperature differences in different parts. When the motor stops running, the cooling system also stops working, and the temperature differences between different parts increase further. At this time, moisture from the high-temperature areas will be conducted along the temperature gradient to the low-temperature areas, eventually forming internal condensation. Condensation may cause PCBA failure or reduce the insulation capability of the controller. Ambient humidity is an important factor affecting condensation inside the motor.

[0003] How to design and develop a breathable valve with moisture control function, with embedded moisture control material, that can achieve hydrophilic-hydrophobic conversion at room temperature, solve the internal and external pressure difference during motor operation, and at the same time have the ability to regulate the ambient humidity, reduce or eliminate condensation, and improve the product's lifespan and safety performance is a technical problem that needs to be solved. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a breathable valve with a moisture control function. It has an embedded moisture control material that can achieve hydrophilicity-hydrophobicity conversion at room temperature, solve the internal and external pressure difference during motor operation, and has the ability to regulate the ambient humidity. This can reduce or eliminate condensation and improve the product's lifespan and safety performance.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A breathable valve with moisture control function includes: valve body, breathable membrane paper, end cap, moisture control fiber, and bottom cap;

[0007] The valve body is a hollow cavity structure with openings at both ends, and the valve body has a threaded connection end and a waterproof and breathable end;

[0008] The breathable membrane paper is attached to the waterproof and breathable end of the valve body;

[0009] The end cap covers the waterproof and breathable end of the valve body;

[0010] The valve body has a receiving chamber inside the threaded connection end, and the moisture control fiber is inserted into the receiving chamber;

[0011] The bottom cover fits onto the threaded connection end of the valve body and seals the accommodating chamber, and a vent hole is provided on the bottom cover.

[0012] In one embodiment, the moisture-controlling breathable valve further includes a waterproof and breathable membrane, which is housed within the receiving cavity and located between the moisture-controlling fiber and the bottom cover.

[0013] In one embodiment, the peripheral wall of the moisture-controlling fiber is provided with a ventilation groove along its axial direction, and a through-hole is formed between the ventilation groove and the cavity wall of the accommodating chamber.

[0014] In one embodiment, the bottom cover has an arcuate apex formed on the plate surface facing the accommodating chamber.

[0015] In one embodiment, the breathable valve with moisture control function further includes a sealing ring located at the transition position between the threaded connection end of the valve body and the waterproof and breathable end.

[0016] In one embodiment, a hexagonal flange is formed on the valve body, and the hexagonal flange is located at the transition position between the threaded connection end of the valve body and the waterproof and breathable end.

[0017] In one embodiment, the inner wall of the accommodating chamber is formed with multiple ridges, which are arranged in a ring array around the central axis of the accommodating chamber; each ridge is curved from the open end of the accommodating chamber to the closed end, and the multiple ridges form an arc-shaped dome at the closed end of the accommodating chamber.

[0018] In one embodiment, the threaded connection end and the waterproof and breathable end of the valve body are integrally injection molded.

[0019] This utility model discloses a breathable valve with a moisture control function, which is embedded with a moisture control material. It can achieve hydrophilicity-hydrophobicity conversion at room temperature, solve the internal and external pressure difference during motor operation, and has the ability to regulate the ambient humidity. It can reduce or eliminate condensation, improve the product's lifespan and safety performance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is an assembly diagram of a breathable valve with moisture control function according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A cross-sectional view of a breathable valve with moisture control function is shown.

[0023] Figure 3 for Figure 1 An exploded view of a breathable valve with moisture control function is shown.

[0024] Figure 4 for Figure 3 A partial view of a breathable valve with moisture control function is shown.

[0025] Figure 5 for Figure 2 The diagram shows the internal structure of the valve body. Detailed Implementation

[0026] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] like Figure 1 and Figure 2 As shown, this utility model discloses a breathable valve 10 with a moisture control function, which includes: valve body 100, breathable membrane paper 200, end cap 300, moisture control fiber 400, and bottom cap 500.

[0030] like Figure 2 As shown, the valve body 100 is a hollow cavity structure with openings at both ends. The valve body 100 has a threaded connection end 110 and a waterproof and ventilated end 120. In this embodiment, the threaded connection end 110 and the waterproof and ventilated end 120 of the valve body 100 are integrally injection molded.

[0031] A breathable membrane 200 is attached to the waterproof and breathable end 120 of the valve body 100, and an end cap 300 is placed over the waterproof and breathable end 120 of the valve body 100.

[0032] The threaded connection end 110 of the valve body 100 has an accommodating chamber 140 (e.g., Figure 5 As shown), the moisture-control fiber 400 is inserted into the accommodating chamber 140 (as shown). Figure 2 (As shown).

[0033] like Figure 2 As shown, the bottom cover 500 covers the threaded connection end 110 of the valve body 100 and seals the receiving chamber 140. A vent hole 501 is provided on the bottom cover 500 (e.g., ...). Figure 4 (As shown).

[0034] The vent valve 10 of this utility model with moisture control function is particularly equipped with moisture-controlling fiber 400 in the accommodating chamber 140. The moisture-controlling fiber 400 can be selected from existing materials with moisture absorption function. The moisture-controlling fiber 400 can achieve hydrophilicity-hydrophobicity conversion at room temperature, solve the internal and external pressure difference during motor operation, and at the same time have the ability to regulate the ambient humidity, which can reduce or eliminate the phenomenon of condensation, and improve the product's lifespan and safety performance.

[0035] The working principle of the moisture-controlling vent valve 10 with the above-described structure will be explained below:

[0036] The breathable membrane paper 200 is attached to the waterproof and breathable end 120 of the valve body 100 by laser welding.

[0037] Then press the end cap 300 onto the waterproof and breathable end 120 of the valve body 100;

[0038] The moisture-controlling fiber 400 is placed inside the accommodating chamber 140;

[0039] Then, the bottom cover 500 is placed on the threaded connection end 110 of the valve body 100 and the receiving chamber 140 is sealed. Thus, the moisture-controlling fiber 400 can be stably housed in the receiving chamber 140.

[0040] Finally, the assembled vent valve is screwed onto the battery pack via the threaded connection end 110 to complete the assembly.

[0041] like Figure 3 and Figure 4As shown, in this invention, the ventilated valve 10 with moisture control function also includes a waterproof and breathable membrane 600. The waterproof and breathable membrane 600 is housed within the receiving chamber 140 and located between the moisture-controlling fiber 400 and the bottom cover 500. The waterproof and breathable membrane 600 has the same function as the breathable membrane paper 200 mentioned above, both serving to provide waterproofing and breathability. When the moisture-controlling fiber 400 is saturated with water, water droplets will form. The waterproof and breathable membrane 600 can effectively prevent water droplets from flowing into the battery pack.

[0042] like Figure 4 As shown, in this utility model, the peripheral wall of the moisture-controlling fiber 400 is provided with a ventilation groove 401 along its axial direction, and a through hole is formed between the ventilation groove 401 and the cavity wall of the accommodating chamber 140 to facilitate ventilation.

[0043] like Figure 4 As shown, in this utility model, an arc-shaped top 502 is formed on the plate surface of the bottom cover 500 facing the accommodating chamber 140. The arc-shaped top 502 is used to lift up the waterproof and breathable membrane 600 or the moisture-controlling fiber 400 to facilitate air permeability.

[0044] In this utility model, the vent valve 10 with moisture control function also includes a sealing ring 700 (e.g., Figure 2 As shown, the sealing ring 700 is located at the transition position between the threaded connection end 110 and the waterproof and ventilated end 120 of the valve body 100. By setting the sealing ring 700, the airtightness of the connection between the vent valve and the battery pack can be better improved.

[0045] In this utility model, a hexagonal flange 101 is formed on the valve body 100 (e.g., Figure 1 As shown, the hexagonal flange 101 is located at the transition position between the threaded connection end 110 and the waterproof and ventilated end 120 of the valve body 100. By providing the hexagonal flange 101, the valve body 100 can be more effectively secured to the battery pack using external tools.

[0046] like Figure 5 As shown, in this utility model, the inner wall of the accommodating chamber 140 is formed with multiple protrusions 150, and the multiple protrusions 150 are distributed in a ring array with the central axis of the accommodating chamber 140 as the center.

[0047] Each rib 150 curves in an arc from the open end of the receiving chamber 140 to the closed end, and multiple ribs 150 form an arc-shaped dome at the closed end of the receiving chamber 140. In this way, during the process of inserting the moisture-controlling fiber 400 into the receiving chamber 140, one end of the moisture-controlling fiber 400 will be deformed by the compression of the arc-shaped dome, and the moisture-controlling fiber 400 will be compressed by the bottom cover 500 at the same time, so that the moisture-controlling fiber 400 is contained in the receiving chamber 140 in an elastic deformation manner, resulting in better stability.

[0048] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A breathable valve with moisture control function, characterized in that, include: Valve body, breathable membrane paper, end cap, moisture-controlling fiber, bottom cap; The valve body is a hollow cavity structure with openings at both ends, and the valve body has a threaded connection end and a waterproof and breathable end; The breathable membrane paper is attached to the waterproof and breathable end of the valve body; The end cap covers the waterproof and breathable end of the valve body; The valve body has a receiving chamber inside the threaded connection end, and the moisture control fiber is inserted into the receiving chamber; The bottom cover fits onto the threaded connection end of the valve body and seals the accommodating chamber, and a vent hole is provided on the bottom cover.

2. The breathable valve with moisture control function according to claim 1, characterized in that, The breathable valve with moisture control function also includes a waterproof and breathable membrane, which is housed in the receiving cavity and located between the moisture control fiber and the bottom cover.

3. The breathable valve with moisture control function according to claim 1, characterized in that, The peripheral wall of the moisture-controlling fiber is provided with a ventilation groove along its axial direction, and a through hole is formed between the ventilation groove and the cavity wall of the accommodating chamber.

4. The breathable valve with moisture control function according to claim 1, characterized in that, An arcuate apex is formed on the plate surface of the bottom cover facing the accommodating chamber.

5. The breathable valve with moisture control function according to claim 1, characterized in that, The breathable valve with moisture control function also includes a sealing ring, which is located at the transition position between the threaded connection end of the valve body and the waterproof and breathable end.

6. The breathable valve with moisture control function according to claim 1, characterized in that, A hexagonal flange is formed on the valve body, and the hexagonal flange is located at the transition position between the threaded connection end and the waterproof and breathable end of the valve body.

7. The breathable valve with moisture control function according to claim 1, characterized in that, The inner wall of the accommodating chamber has multiple ridges, which are arranged in a ring array around the central axis of the accommodating chamber. Each ridge curves in an arc from the open end to the closed end of the accommodating chamber, and the multiple ridges form an arc-shaped dome at the closed end of the accommodating chamber.

8. The breathable valve with moisture control function according to claim 1, characterized in that, The threaded connection end and the waterproof and breathable end of the valve body are integrally injection molded.

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