WO2023213240A1 - 一种防水透气结构及充电装置 - Google Patents

一种防水透气结构及充电装置 Download PDF

Info

Publication number
WO2023213240A1
WO2023213240A1 PCT/CN2023/091613 CN2023091613W WO2023213240A1 WO 2023213240 A1 WO2023213240 A1 WO 2023213240A1 CN 2023091613 W CN2023091613 W CN 2023091613W WO 2023213240 A1 WO2023213240 A1 WO 2023213240A1
Authority
WO
WIPO (PCT)
Prior art keywords
waterproof
breathable
mounting base
air
shaped
Prior art date
Application number
PCT/CN2023/091613
Other languages
English (en)
French (fr)
Inventor
王超
Original Assignee
长春捷翼汽车科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 长春捷翼汽车科技股份有限公司 filed Critical 长春捷翼汽车科技股份有限公司
Publication of WO2023213240A1 publication Critical patent/WO2023213240A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details

Definitions

  • the present application relates to the field of waterproof technology, and more specifically, to a waterproof and breathable structure and a charging device.
  • Electronic equipment is generally installed in an air environment and is some electronic devices surrounded by air.
  • electronic equipment In order to prevent water or dust from entering the interior of electronic equipment and causing damage to internal electronic devices, electronic equipment is required to have high waterproof and dustproof properties.
  • some electronic devices will generate heat, and temperature fluctuations will cause internal overpressure or negative pressure in the electronic equipment.
  • the pressure difference between the internal and external environments will have a negative impact on the electronic devices, causing them to be deformed or damaged, and may also cause
  • the sealing parts of electronic equipment are damaged, allowing water or dust to enter the inside of the equipment. Therefore, the sealing performance of electronic equipment and maintaining consistent pressure inside and outside the electronic equipment is a contradiction in structural design.
  • a new solution is urgently needed in the existing technology to solve the above problems.
  • the purpose of this application is to provide a waterproof and breathable structure and charging device to overcome the shortcomings of the existing technology.
  • the embodiment of the first aspect of the present application provides a waterproof and breathable structure, including a mounting base with breathable holes, a protective film and a waterproof and breathable film;
  • the waterproof breathable film covers the breathable holes
  • the protective film includes a first area covering the waterproof and breathable membrane, and a second area connected to the mounting base, with a channel for accommodating gas passage between the second area and the mounting base;
  • the breathable hole communicates with the external environment through the waterproof breathable membrane and the channel.
  • An embodiment of the second aspect of the present application provides a charging device, including a waterproof and breathable structure as described above, and the mounting base is provided on the charging device.
  • the waterproof breathable membrane can allow gas to pass through but prevent water from passing through.
  • it When it is arranged on the breathable hole of the installation base, it can prevent water or dust from entering the installation base and cause corrosion of parts, and can balance the equipment.
  • Internal air pressure protects the equipment.
  • the protective film has impact resistance, can effectively prevent air pollution from oil stains and most organic solvents, and has excellent weather resistance and scratch resistance.
  • a waterproof and breathable film is installed on the charging device, so that only air can enter and exit the charging device through the waterproof and breathable film, while dust is completely blocked, thereby achieving the purpose of maintaining the pressure within the charging device and protecting internal components.
  • the protective film and waterproof and breathable film are placed in the groove, they will not protrude from the surface of the charging device and can effectively avoid scratches with other devices.
  • Figure 1 is a side cross-sectional view of a waterproof and breathable structure of the present application.
  • Figure 2 is a schematic structural diagram of a waterproof and breathable structural protective film of the present application.
  • Figure 3 is an exploded schematic diagram of an embodiment of a waterproof and breathable structure of the present application.
  • Figure 4 is an exploded schematic diagram of an embodiment of a waterproof and breathable structure of the present application.
  • FIG. 5 is a schematic structural diagram of a charging device of the present application.
  • any specific values are to be construed as illustrative only and not is used as a restriction. Accordingly, other examples of the exemplary embodiments may have different values.
  • the embodiment of the first aspect of the present application provides a waterproof and breathable structure, which includes a mounting base 4 with breathable holes 41, as shown in Figures 1 and 2, and also includes a protective film 1 and a waterproof and breathable film 2;
  • the waterproof and breathable membrane 2 covers the breathable holes 41;
  • the protective film 1 includes a first area 11 covering the waterproof and breathable membrane 2, and a second area 12 connected to the mounting base 4. There is a channel 6 for accommodating the passage of gas between the second area 12 and the mounting base 4 (as shown in Figure 4 );
  • the breathable hole 41 is connected to the external environment through the waterproof breathable membrane 2 and the channel 6 .
  • the waterproof breathable membrane 2 is a porous material.
  • the pore size of its micropores is larger than air molecule particles, but much smaller than water molecule particles. This makes water molecule particles unable to pass through but air molecule particles can pass freely, thus achieving waterproofing and Breathable.
  • the waterproof breathable membrane 2 is covered on the ventilation holes 41 of the mounting base 4 to prevent water or dust from entering the mounting base 4 and causing corrosion, and can balance the internal air pressure of the mounting base 4 and protect internal equipment.
  • the protective film 1 can be made of a relatively strong material, such as PET, which has high impact resistance and can effectively prevent oil and most organic solvents from contaminating the waterproof and breathable film 2. It also has excellent weather resistance and scratch resistance.
  • the protective film 1 can be circular, and the portion in the middle that overlaps the waterproof breathable film 2 is the first area 11, which is used to provide protection for the waterproof breathable film 2, and is between the waterproof breathable film 2 and the waterproof breathable film 2. Allow air to flow.
  • the second area 12 can be bonded to the mounting base 4 through colloid such as double-sided tape 3 .
  • the gaps between the double-sided tapes 3 form channels 6 for air to enter and exit. In this way, the air can be discharged from the installation base 4 through the ventilation holes 41, the waterproof and breathable membrane 2 and the channel 6 in sequence.
  • air can also enter the mounting base 4 in the opposite direction to balance the pressure within the mounting base 4 .
  • the waterproof and breathable film 2 is a PET original film.
  • the waterproof and breathable membrane 2 made of PET has the advantages of high tensile strength, high elastic modulus, high impact resistance, good cold and heat resistance, and good electrical insulation.
  • the waterproof and breathable membrane 2 is an expanded polytetrafluoroethylene film.
  • the expanded polytetrafluoroethylene waterproof and breathable membrane has the following characteristics: water-repellent, oil-repellent, extremely chemically inert, UV-resistant, and extreme-resistant. temperature.
  • the protective film 1 is a transparent structure.
  • the transparent protective film 1 facilitates the staff to observe whether the waterproof and breathable membrane 2 is partially separated from the installation base 4, so that the waterproof and breathable membrane 2 can play a better role.
  • the air permeability of the waterproof breathable membrane 2 is not less than 109 ml/min. If the air permeability of the waterproof and breathable membrane 2 is not high enough and the air permeability speed is not fast, when the air pressure inside some mounting bases 4 rises rapidly, failure to ventilate in time will cause harm to the components in the mounting base 4. Therefore, the inventor conducted The test was carried out. The test method is to select an 8 cubic decimeter installation base 4. There are ventilation holes 41 on the installation base 4, and the ventilation holes 41 have different settings.
  • the air permeability of the waterproof breathable membrane 2 when the air permeability of the waterproof breathable membrane 2 is less than 109ml/min, the time for the air pressure in the installation base 4 to return to the normal value is greater than 100 seconds.
  • the air permeability of the waterproof breathable membrane 2 is greater than or equal to 109ml/min , the time for the air pressure in the mounting base 4 to return to the normal value is less than or equal to 100 seconds. Therefore, the inventor prefers that the air permeability of the waterproof breathable membrane 2 is not less than 109 ml/min.
  • the ratio of the area of the waterproof and breathable membrane 2 to the area of the protective membrane 1 is less than or equal to 96%. If the waterproof and breathable membrane 2 is too large, the contact area between the protective membrane 1 and the double-sided adhesive tape 3 will be reduced, which may easily cause the adhesive to open or even fall off.
  • the inventor conducted relevant tests. The test method was to select the same installation base 4 and have the same breathable holes 41, and select different test samples. The ratio of the area of the waterproof and breathable membrane 2 to the area of the protective membrane 1 is different for each sample. Cover the ventilation holes 41 of the sample and inflate air into the mounting base 4 from other holes. If the second area 12 is separated from the mounting base 4, it is considered unqualified. The results are shown in Table 2.
  • Table 2 The impact of the ratio of the area of the waterproof and breathable membrane 2 to the area of the protective membrane 1 on the sealing effect.
  • the ratio of the area of the waterproof and breathable membrane 2 to the area of the protective membrane 1 is greater than 96%, there will be slight debonding between the second area 12 and the mounting base 4, which is considered unqualified. Therefore, the inventor prefers that the ratio of the area of the waterproof breathable membrane 2 to the area of the protective membrane 1 is less than or equal to 96%.
  • the diameter of the micropores on the waterproof breathable membrane 2 is 0.15 microns to 3.0 microns.
  • the micropores in this range are much smaller than the diameter of water droplets, preventing moisture from passing through, effectively protecting the components in the installation base 4, avoiding liquid erosion, and extending the service life of the product.
  • the surface of the waterproof breathable membrane 2 is provided with granular protrusions.
  • the protrusions can prevent the surfaces of the waterproof breathable membrane 2 and the protective membrane 1 from being completely attached due to static electricity, and can provide ventilation at any time.
  • the protrusion is provided on the side of the waterproof and breathable membrane 2 facing the protective film 1, or can be provided on both sides to avoid installation errors.
  • the surface of the protective film 1 is provided with granular protrusions.
  • the protrusions can prevent the surface of the protective film 1 and the mounting base 4 from being completely attached due to static electricity, and can provide ventilation at any time.
  • the protrusion is provided on the side of the protective film 1 facing the mounting base 4 .
  • the surface roughness Rz of the mounting base 4 is ⁇ 10um.
  • the test method is to prepare installations with different surface roughness. Base 4, stick the same protective film 1 on the ventilation hole 41 with the same double-sided tape 3, increase the air pressure in the installation base 4, and when the pressure rises to 10 atmospheres, observe whether there is any opening in the double-sided tape 3. If If yes, it is considered unqualified; if not, it is considered qualified. The results are shown in Table 3.
  • Table 3 Effect of assembly surface roughness Rz on double-sided tape.
  • the inventor prefers that the roughness Rz of the surface of the mounting base 4 is ⁇ 10um.
  • the cross-sectional shape of the channel is circular or elliptical or semi-arc or arc or wavy or triangular or rectangular or polygonal or E-shaped or F-shaped or H-shaped or K-shaped or L-shaped. Or T-shaped or U-shaped or V-shaped or W-shaped or X-shaped or Y-shaped or Z-shaped structure.
  • different double-sided tapes 3 can be selected to form different channel shapes.
  • the cross-sectional area of the channel 6 is less than or equal to 50 mm 2 . If the cross-sectional area of the channel 6 is too large, the area pasted by the double-sided tape 3 will be too small, resulting in a reduction in the contact area between the second area 12 of the protective film 1 and the mounting base 4 through the double-sided tape 3, easily causing the glue to open. Even fall off. In order to find the right pass The inventor conducted relevant tests on the cross-sectional area of the channel. The test method was to select the same mounting base 4 and the same protective film 1, and select different test samples. The cross-sectional area of the channel 6 of each sample was different. Cover the ventilation hole 41 of the sample, and inflate the air into the mounting base 4 from other holes. If there is glue opening, it is considered unqualified. The results are shown in Table 4.
  • the channels 6 are evenly distributed between the second area 12 and the mounting base 4 .
  • the channel 6 is scientifically arranged between the protective film 1 and the installation base 4, so that when the air pressure inside and outside the inner cavity changes, the pressure on the protective film 1 is more uniform, and the protective film 1 is prevented from being separated from the installation base 4 due to strong local pressure.
  • the second embodiment of the present application provides a charging device, including a waterproof and breathable structure as described above, and the mounting base 4 is provided on the charging device.
  • the charging device is used to charge new energy vehicles, generally referring to a charging gun or charging base 5.
  • the charging device contains conductive terminals and various lines. When there is power transmission, the temperature of the conductive terminals increases a lot. The corresponding air pressure in the charging device will increase, and when the terminal temperature decreases, the air pressure will fall back. If the air pressure in the charging device is not balanced, excessive air pressure changes will cause damage to various devices in the charging device.
  • the mounting base 4 is provided on the charging base 5 , or the mounting base 4 itself is the charging base 5 , or the mounting base 4 itself is a part of the charging base 5 .
  • the waterproof and breathable structure can not only prevent water or oil from entering the charging base 5, but also allow air to freely flow in and out through the ventilation holes 41 to balance the air pressure in the charging base 5.
  • the mounting base 4 is a groove provided on the charging device, and the protective film 1 is provided in at least part of the groove.
  • the protective film 1 and the waterproof and breathable film 2 are arranged in the groove, they will not protrude from the surface of the charging stand 5, which can effectively prevent other devices from scratching the protective film 1.
  • the mounting base 4 is integrally formed with the charging device.
  • the mounting base 4 is a part of the charging device.
  • the waterproof and breathable structure can not only prevent water or oil from entering the charging device, but also allow air to freely move in and out through the ventilation holes 41 to balance the air pressure in the charging device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

一种防水透气结构及充电装置，涉及防水技术领域，包括具有透气孔的安装基体，还包括防护膜和防水透气膜；防水透气膜覆盖在透气孔上；防护膜包括覆盖防水透气膜的第一区域、以及与安装基体连接的第二区域，第二区域与安装基体之间具有容纳气体通过的通道；透气孔通过防水透气膜和通道连通外部环境。本申请的有益效果是：防水透气膜能够允许气体通过而阻止水通过，将其设置在安装基体的透气孔上，能够防止水或灰尘进入设备造成零件腐蚀，又能平衡设备内部气压，对设备进行保护。

Description

一种防水透气结构及充电装置
相关申请
本申请要求于2022年05月01日递交的申请号为202221030482.1的中国实用新专利申请的优先权，并引用上述专利申请公开的全部内容作为本申请的一部分。
技术领域
本申请涉及防水技术领域，更具体地，涉及一种防水透气结构及充电装置。
背景技术
电子设备一般都是安装在空气环境中的，是被空气包围的一些电子器件。为了避免水或灰尘进入电子设备内部，导致内部的电子器件遭到破坏，这就要求电子设备要有较高的防水性和防尘性。但是电子设备工作时，部分电子器件会发热，温度波动会导致电子设备的内部过压或负压，内部和外部环境的压力差会对电子器件有负面影响，导致其变形或损坏，也有可能导致电子设备的密封部件损坏，反而导致水或灰尘进入设备内部。因此，电子设备的密封性与电子设备的内外部保持压力一致是结构设计的矛盾点，现有技术中亟需一种新的方案来解决上述问题。
发明内容
本申请目的是为了克服现有技术的不足而提供一种防水透气结构及充电装置。
本申请第一方面的实施例提供一种防水透气结构，包括具有透气孔的安装基体，还包括防护膜和防水透气膜；
所述防水透气膜覆盖在所述透气孔上；
所述防护膜包括覆盖所述防水透气膜的第一区域、以及与所述安装基体连接的第二区域，所述第二区域与所述安装基体之间具有容纳气体通过的通道；
所述透气孔通过所述防水透气膜和所述通道连通外部环境。
本申请第二方面的实施例提供了一种充电装置，包括如上述的一种防水透气结构，所述安装基体设置在所述充电装置上。
本申请的有益效果是：防水透气膜能够允许气体通过而阻止水通过，将其设置在安装基体的透气孔上，能够防止水或灰尘进入安装基体造成零件腐蚀，又能平衡设备 内部气压，对设备进行保护。防护膜具有耐冲击性，可有效防止油污以及大多数有机溶剂对透气污染，以及耐候性，耐刮擦性能优异。
本申请将防水透气膜安装在充电装置上，这样只有空气可以通过防水透气膜进出充电装置，而灰尘则被完全阻挡，从而实现了维持充电装置内压强保护内部器件的目的。防护膜及防水透气膜设置在凹槽内后，不会突出于充电装置表面，能够有效避免与其他器件刮碰。
通过以下参照附图对本申请的示例性实施例的详细描述，本申请的其它特征及其优点将会变得清楚。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本申请的实施例，并且连同其说明一起用于解释本申请的原理。
图1为本申请一种防水透气结构的侧视剖视图。
图2为本申请一种防水透气结构防护膜的结构示意图。
图3为本申请一种防水透气结构一种实施例的分解示意图。
图4为本申请一种防水透气结构一种实施例的分解示意图。
图5为本申请一种充电装置的结构示意图。
图中标示如下：
1-防护膜、11-第一区域、12-第二区域、2-防水透气膜、3-双面胶、4-安装基体、
41-透气孔、5-充电座、6-通道。
具体实施方式
现在将参照附图来详细描述本申请的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本申请的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本申请及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不 是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
本申请第一方面的实施例提供一种防水透气结构，包括具有透气孔41的安装基体4，如图1和图2所示，还包括防护膜1和防水透气膜2；
防水透气膜2覆盖在透气孔41上；
防护膜1包括覆盖防水透气膜2的第一区域11、以及与安装基体4连接的第二区域12，第二区域12与安装基体4之间具有容纳气体通过的通道6(如图4所示)；
透气孔41通过防水透气膜2和通道6连通外部环境。
防水透气膜2是一种多孔材料，其微孔的孔径大于空气分子颗粒，但又远小于水分子颗粒，这就使得水分子颗粒不能通过但是空气分子颗粒可以自由通过，因而就实现了防水与透气。将防水透气膜2覆盖在安装基体4的透气孔41上，从而防止水或灰尘进入安装基体4造成腐蚀，又能平衡安装基体4内部气压，对内部设备进行保护。
防护膜1可以选用比较结实的材质，如PET，其耐冲击强度高，可有效防止油污以及大多数有机溶剂对防水透气膜2的污染，同时还具有优秀的耐候性和耐刮擦性。
具体的，如图3所示，防护膜1可以为圆形，其中间与防水透气膜2重叠的部分为第一区域11，用于对防水透气膜2提供保护，且与防水透气膜2间允许空气流动。第二区域12可以通过胶体如双面胶3与安装基体4粘接。双面胶3之间的空隙形成空气进出的通道6。这样空气就可以依次经透气孔41、防水透气膜2和通道6从安装基体4排出。同样，空气也可以以相反的方向进入安装基体4来平衡安装基体4内的压强。
在一些实施例中，防水透气膜2为PET原膜。PET材质的防水透气膜2具有拉伸强度大、弹性模量高、耐冲击强度大、耐寒耐热性好、电绝缘性好等优点。
在另一些实施例中，防水透气膜2为膨体聚四氟乙烯膜，膨体聚四氟乙烯防水透气膜具有以下特点：憎水、憎油、极强的化学惰性、抗紫外线、耐极端温度。
在一些实施例中，防护膜1为透明结构。透明的防护膜1方便工作人员观察防水透气膜2是否与安装基体4发生部分分离，使防水透气膜2发挥更好的作用。
在一些实施例中，防水透气膜2的透气率不小于109ml/min。如果防水透气膜2的透气率不够高，透气速度不快，在某些安装基体4内部的气压快速升高时，无法及时透气的话会对安装基体4内的零部件产生危害，因此，发明人进行了测试，测试方法为选择8立方分米的安装基体4，安装基体4上有透气孔41，透气孔41上设置不同 透气率的防水透气膜2，首先封堵透气孔41，通过其他孔洞将安装基体4内的气压升高1个标准大气压，之后打开封堵的透气孔41，让气体通过防水透气膜2透出，观察具有不同防水透气膜2的安装基体4内的气压情况，并记录回复到原始气压的时间，时间大于100秒为不合格。结果如表1所示。
表1：防水透气膜的透气率对气压恢复的影响
如表1所示，当防水透气膜2的透气率小于109ml/min时，安装基体4内的气压恢复到正常值的时间大于100秒，当防水透气膜2的透气率大于或等于109ml/min时，安装基体4内的气压恢复到正常值的时间小于或等于100秒，因此，发明人优选防水透气膜2的透气率不小于109ml/min。
在一些实施例中，防水透气膜2的面积与防护膜1面积的比值为小于或等于96％。如果防水透气膜2过大，则防护膜1与双面胶3的接触面积就会减少，容易造成开胶甚至脱落。为了寻找合适的防水透气膜2的面积与防护膜1面积的比值，发明人进行了相关测试，测试方法为选择相同的安装基体4且具有相同的透气孔41，选择不同的测试样件，每个样件的防水透气膜2的面积与防护膜1面积的比值不同。将样件覆盖透气孔41，从其他孔洞向安装基体4内充气，如果第二区域12与安装基体4出现分离为不合格，结果如表2所示。
表2：防水透气膜2的面积与防护膜1面积的比对密闭效果的影响。
如表2所示，而当防水透气膜2的面积与防护膜1面积的比值大于96％时，第二区域12与安装基体4会出现微小的开胶现象，为不合格。因此，发明人优选防水透气膜2的面积与防护膜1面积的比值为小于或等于96％。
在一些实施例中，防水透气膜2上的微孔的直径为0.15微米-3.0微米。在这个范围内的微孔远小于水珠直径，使水分无法通过，有效保护安装基体4内的部件，避免液体侵蚀，提高产品使用寿命。
在一些实施例中，防水透气膜2的表面上设置有颗粒状凸起。凸起能够避免防水透气膜2与防护膜1的表面因为静电而完全贴合，能够随时起到通气的作用。凸起设置在防水透气膜2朝向防护膜1的一侧，也可以两侧均设置，避免出现安装错误。
在一些实施例中，防护膜1的表面上设置有颗粒状凸起。凸起能够避免防护膜1与安装基体4的表面因为静电而完全贴合，能够随时起到通气的作用。自然的，凸起设置在防护膜1朝向安装基体4的一侧。
在一些具体的实施方式中，安装基体4表面的粗糙度Rz<10um。
如果安装基体4表面的粗糙度太大，则其表面的胶体不易粘牢，为了寻找合适的安装基体4表面的粗糙度，发明人进行了相关测试，测试方法为准备具有不同表面粗糙度的安装基体4，将相同的防护膜1用相同的双面胶3粘在透气孔41上，升高安装基体4内的气压，升高10个大气压时，观察双面胶3是否有开胶处，如果有则为不合格，如果没有则为合格，结果如表3所示。
表3：装配部表面的粗糙度Rz对双面胶的影响。
如表3所示，当安装基体4表面的粗糙度Rz大于或等于10um时，双面胶3会出现开胶现象，因此，发明人优选，安装基体4表面的粗糙度Rz<10um。
在一些具体的实施例中，通道的横截面形状为圆形或椭圆形或半弧形或弧形或波浪形或三角形或矩形或多边形或E形或F形或H形或K形或L形或T形或U形或V形或W形或X形或Y形或Z形结构。可以根据具体的情况，选择不同的双面胶3，形成不同的通道形状。
在一些具体的实施例中，通道6的横截面积小于或等于50mm2。如果通道6的横截面积过大，则双面胶3粘贴的面积就会过小，从而导致防护膜1的第二区域12通过双面胶3与安装基体4的接触面积减少，容易造成开胶甚至脱落。为了寻找合适的通 道的横截面积，发明人进行了相关测试，测试方法为选择相同的安装基体4和相同的防护膜1，选择不同的测试样件，每个样件的通道6的横截面积不同。将样件覆盖透气孔41，从其他孔洞向安装基体4内充气，如果出现开胶现象为不合格，结果如表4所示。
表4：通道6的横截面积对防护膜1牢固度的影响
由表4可知，当通道6的横截面积大于50mm2时，由于双面胶3面积不足，在压力下会出现开胶现象，因此发明人优选通道6的横截面积小于或等于50mm2。
在一些具体的实施例中，通道6在第二区域12及安装基体4之间均匀分布。通道6科学的布置在防护膜1与安装基体4之间，使防护膜1在内腔内外气压变化时，各处受到的压力更均匀，避免局部压强大导致防护膜1与安装基体4分离。
本申请第二方面的实施例提供了一种充电装置，包括如上所述的一种防水透气结构，安装基体4设置在充电装置上。
如图5所示，充电装置用于给新能源汽车进行充电，一般指充电枪或充电座5，充电装置内含导电端子和多种线路，在有电能传输时，导电端子温度升高很多，相应的充电装置内的气压就会增加，而端子温度降低后，气压又会回落，如果不平衡充电装置内的气压，过大的气压变化会对充电装置内的各种器件造成伤害。以充电座5为例，安装基体4设置在充电座5上，或者安装基体4本身为充电座5，再或者安装基体4本身为充电座5的一部分。防水透气结构既可以防止水或油污进入充电座5，又能使空气在透气孔41上自由进出来平衡充电座5内的气压。
在一种实施例中，安装基体4为设置在充电装置上的凹槽，防护膜1设置在至少部分凹槽内。以充电座5为例，防护膜1及防水透气膜2设置在凹槽内后，就不会突出于充电座5表面，能够有效避免其他器件与防护膜1刮碰。
在一种实施例中，安装基体4与充电装置一体成型。安装基体4即为充电装置的一部分，防水透气结构既可以防止水或油污进入充电装置，又能使空气在透气孔41上自由进出来平衡充电装置内的气压。
虽然已经通过例子对本申请的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本申请的范围。本领域的技术人员应该理解，可在不脱离本申请的范围和精神的情况下，对以上实施例进行修改。本申请的范围由所附权利要求来限定。

Claims (16)

  1. 一种防水透气结构，包括具有透气孔(41)的安装基体(4)，其特征在于：还包括防护膜(1)和防水透气膜(2)；
    所述防水透气膜(2)覆盖在所述透气孔(41)上；
    所述防护膜(1)包括覆盖所述防水透气膜(2)的第一区域(11)、以及与所述安装基体(4)连接的第二区域(12)，所述第二区域(12)与所述安装基体(4)之间具有容纳气体通过的通道(6)；
    所述透气孔(41)通过所述防水透气膜(2)和所述通道(6)连通外部环境。
  2. 根据权利要求1所述的一种防水透气结构，其特征在于：所述防水透气膜(2)为PET原膜。
  3. 根据权利要求1所述的一种防水透气结构，其特征在于：所述防水透气膜(2)为膨体聚四氟乙烯膜。
  4. 根据权利要求1所述的一种防水透气结构，其特征在于：所述防护膜(1)为透明结构。
  5. 根据权利要求1所述的一种防水透气结构，其特征在于，所述防水透气膜(2)的透气率不小于109ml/min。
  6. 根据权利要求1所述的一种防水透气结构，其特征在于：所述防水透气膜(2)的面积与所述防护膜(1)面积的比为小于等于96％。
  7. 根据权利要求1所述的一种防水透气结构，其特征在于：所述防水透气膜(2)上的微孔的直径为0.15微米-3.0微米。
  8. 根据权利要求1所述的一种防水透气结构，其特征在于：所述防水透气膜(2)的表面上设置有颗粒状凸起。
  9. 根据权利要求1所述的一种防水透气结构，其特征在于：所述防护膜(1)的表面上设置有颗粒状凸起。
  10. 根据权利要求1所述的一种防水透气结构，其特征在于，所述安装基体(4)表面的粗糙度Rz<10um。
  11. 根据权利要求1所述的一种防水透气结构，其特征在于：所述通道(6)的横截面形状为圆形或椭圆形或半弧形或弧形或波浪形或三角形或矩形或多边形或E形或F形或H形或K形或L形或T形或U形或V形或W形或X形或Y形或Z形结构。
  12. 根据权利要求1所述的一种防水透气结构，其特征在于：所述通道(6)的横截面积小于或等于50mm2。
  13. 根据权利要求1所述的一种防水透气结构，其特征在于：所述通道(6)在所述第二区域(12)及所述安装基体(4)之间均匀分布。
  14. 一种充电装置，其特征在于，包括如权利要求1-13任一项所述的一种防水透气结构，所述安装基体(4)设置在所述充电装置上。
  15. 根据权利要求14所述的一种充电装置，其特征在于，所述安装基体(4)为设置在所述充电装置上的凹槽，所述防护膜(1)设置在至少部分所述凹槽内。
  16. 根据权利要求14所述的一种充电装置，其特征在于，所述安装基体(4)与所述充电装置一体成型。
PCT/CN2023/091613 2022-05-01 2023-04-28 一种防水透气结构及充电装置 WO2023213240A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202221030482.1 2022-05-01
CN202221030482.1U CN217825618U (zh) 2022-05-01 2022-05-01 一种防水透气结构及一种充电装置

Publications (1)

Publication Number Publication Date
WO2023213240A1 true WO2023213240A1 (zh) 2023-11-09

Family

ID=83982264

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/091613 WO2023213240A1 (zh) 2022-05-01 2023-04-28 一种防水透气结构及充电装置

Country Status (2)

Country Link
CN (1) CN217825618U (zh)
WO (1) WO2023213240A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN217825618U (zh) * 2022-05-01 2022-11-15 长春捷翼汽车零部件有限公司 一种防水透气结构及一种充电装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6506110B1 (en) * 1997-11-28 2003-01-14 Siemens Aktiengesellschaft Ventilation device, especially for electrical control devices
CN208902682U (zh) * 2018-08-24 2019-05-24 大陆汽车电子(长春)有限公司 带有防水透气膜的氮氧传感器
CN211284227U (zh) * 2019-06-03 2020-08-18 海能达通信股份有限公司 防水透气复合膜
CN211880789U (zh) * 2020-05-15 2020-11-06 广东高标电子科技有限公司 一种防水透气装置、电动车控制器及电动车
CN214004499U (zh) * 2020-11-25 2021-08-20 天津日津科技股份有限公司 一种防水透气膜组件
CN216269693U (zh) * 2021-04-20 2022-04-12 北京零极创新科技有限公司 控制器及电动代步车
CN217825618U (zh) * 2022-05-01 2022-11-15 长春捷翼汽车零部件有限公司 一种防水透气结构及一种充电装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6506110B1 (en) * 1997-11-28 2003-01-14 Siemens Aktiengesellschaft Ventilation device, especially for electrical control devices
CN208902682U (zh) * 2018-08-24 2019-05-24 大陆汽车电子(长春)有限公司 带有防水透气膜的氮氧传感器
CN211284227U (zh) * 2019-06-03 2020-08-18 海能达通信股份有限公司 防水透气复合膜
CN211880789U (zh) * 2020-05-15 2020-11-06 广东高标电子科技有限公司 一种防水透气装置、电动车控制器及电动车
CN214004499U (zh) * 2020-11-25 2021-08-20 天津日津科技股份有限公司 一种防水透气膜组件
CN216269693U (zh) * 2021-04-20 2022-04-12 北京零极创新科技有限公司 控制器及电动代步车
CN217825618U (zh) * 2022-05-01 2022-11-15 长春捷翼汽车零部件有限公司 一种防水透气结构及一种充电装置

Also Published As

Publication number Publication date
CN217825618U (zh) 2022-11-15

Similar Documents

Publication Publication Date Title
WO2023213240A1 (zh) 一种防水透气结构及充电装置
CA2437598C (en) Device for reducing the presence of moisture within an enclosure containing a heat source
US10557561B2 (en) Pressure-compensation device for a housing
AU2002258750A1 (en) Device for reducing the presence of moisture within an enclosure containing a heat source
WO2011132247A1 (ja) 通気部材およびそれを備えた通気筐体
CN104520984A (zh) 基板收纳容器
CN102598399A (zh) 具有带移动板阀的空气管理器的电池
CN105914248B (zh) 一种具有高cti值的太阳能电池组件用背板
CN113594623B (zh) 电池包防爆阀
US8944087B2 (en) Emergency drainage device for enclosed compartments
US6128193A (en) Enhanced humidity control for small modules
US11942653B2 (en) Housing with integrated spark arrestor
CN211347297U (zh) 一种环境试验设备的底板配合结构
CN210751987U (zh) 一种能够调节的防水透气阀
CN215344803U (zh) 摄像头保护结构
CN114188656A (zh) 防爆阀保护贴片、电池顶盖及电池
CN217062395U (zh) 一种防爆阀保护贴片组件、电池顶盖及二次电池
CN217062402U (zh) 防爆阀保护贴片、电池顶盖及电池
CN212246864U (zh) 一种高透可抗静电胶带
CN115141561A (zh) 电子产品用防静电pet膜
CN211148793U (zh) 防漏电静电计
CN214735532U (zh) 一种全方位导电泡棉胶带
CN114554743B (zh) 一种防水透气装置以及电器设备
CN221329049U (zh) 一种带有防水结构的航摄仪
CN211531500U (zh) 室外透明防护罩及带有该防护罩的放气指示灯

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23799226

Country of ref document: EP

Kind code of ref document: A1