Detachable and replaceable ventilation and dehumidification assembly for electronic equipment

Abstract

The utility model relates to the technical field of ventilation and dehumidification of electronic equipment, and discloses a detachable and replaceable ventilation and dehumidification assembly for electronic equipment, which comprises an electronic equipment sealing shell provided with a bayonet matched with an assembly shell, and the electronic equipment sealing shell is buckled with the assembly shell through a limiter. An outer waterproof breathable film is arranged at the bottom of the assembly shell, an inner waterproof breathable film is arranged at an opening in the top of the assembly shell, one or more breathable channels are formed in the middle of the inner waterproof breathable film, and a drying agent is arranged in the assembly shell; the assembly not only can realize air pressure balance inside and outside the electronic equipment, but also can prevent pollutants such as external liquid water and dust from entering the electronic equipment; meanwhile, moisture in the equipment can be absorbed when the electronic equipment stops working, so that short circuit of the electronic equipment is effectively prevented, and the service life of the electronic equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of breathable and dehumidifying technology for electronic devices, specifically a detachable and replaceable breathable and dehumidifying component for electronic devices. Background Technology

[0002] Currently, the sealed housing of electronic devices requires convection holes to balance the pressure difference between the inside and outside, and also to dissipate heat. However, after the electronic device finishes operating, the internal temperature continues to cool down, the internal pressure drops, and the outside air mixed with moisture will enter the device through the convection holes. If the moisture accumulates for a long time, it will form water droplets, which may cause a short circuit in the device.

[0003] To address the aforementioned issues, the current common solution is to place bag-type desiccants inside a sealed housing to remove moisture that enters the housing. However, after absorbing moisture for a period of time, the desiccant loses its effectiveness and dehumidification effect, leaving the problem that external moisture can still freely enter the sealed housing. Furthermore, existing solutions often place the desiccant inside the sealed housing, making it inconvenient to disassemble and replace it later. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a detachable and replaceable breathable dehumidifying component for electronic devices. It has the advantages of achieving air pressure balance between the inside and outside of the electronic device and preventing external contaminants such as liquid water and dust from entering the electronic device. It solves the problem that after the desiccant absorbs moisture for a period of time, it loses its effectiveness and dehumidification effect, allowing external moisture to freely enter the sealed shell.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned goals of maintaining air pressure balance inside and outside electronic devices while preventing external contaminants such as liquid water and dust from entering the devices, this utility model provides the following technical solution: a detachable and replaceable breathable and dehumidifying component for electronic devices, comprising an electronic device sealing shell with a snap-fit ​​mechanism adapted to the component housing, wherein the electronic device sealing shell and the component housing are fastened together by a limiter, the component housing is made of polypropylene with 40% mineral filler or polypropylene with 30% glass fiber, etc., wherein an outer waterproof and breathable membrane is provided at the bottom of the component housing, and an inner waterproof and breathable membrane is provided at the opening at the top of the component housing, wherein one or more breathable channels are provided in the middle of the inner waterproof and breathable membrane, and a desiccant is built into the component housing, wherein both the inner and outer waterproof and breathable membranes are ePTFE membranes, and the ePTFE membrane is a multi-microporous membrane formed by expanding and stretching polytetrafluoroethylene.

[0008] Furthermore, the component housing is provided with a boss, and a sealing ring is provided on the outer sleeve of the component housing between the boss and the limiter. The sealing ring is made of silicone rubber or EPDM rubber with a Shore hardness of 40-70HA. The sealing ring cooperates with the limiter to lock the component on the sealed housing of the electronic device, thus playing a sealing role.

[0009] Furthermore, the external waterproof and breathable membrane is bonded to the bottom plane of the component housing by thermal welding or ultrasonic welding.

[0010] Furthermore, the inner waterproof and breathable membrane is bonded to the top plane of the component housing by thermal welding or ultrasonic welding.

[0011] Furthermore, the component housing has one or more ventilation channels in the middle.

[0012] Furthermore, the outer ring of the component housing is provided with not less than two limiters for locking onto the sealed housing of the electronic device.

[0013] Furthermore, the desiccant is one or more of magnesium chloride desiccant, calcium chloride desiccant, or silica gel desiccant.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a detachable and replaceable breathable and dehumidifying component for electronic devices, which has the following advantages:

[0016] 1. The electronic device uses a detachable and replaceable breathable and dehumidifying component, which can not only achieve air pressure balance between the inside and outside of the electronic device, but also prevent external contaminants such as liquid water and dust from entering the electronic device; at the same time, it can absorb the moisture inside the electronic device when it is not working, effectively preventing short circuits and extending the life of the electronic device.

[0017] 2. The electronic device uses a detachable and replaceable breathable and dehumidifying component, which can be easily installed and removed by rotating in both directions. It is easy to install and remove, and convenient to maintain and replace. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the finished product of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation of this utility model.

[0021] In the diagram: 1. Sealed housing of electronic equipment; 2. Inner waterproof and breathable membrane; 3. Sealing ring; 4. Component housing; 4a. Boss; 4b. Limiter; 5. Outer waterproof and breathable membrane. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-3 A detachable and replaceable breathable dehumidifying component for electronic devices includes an electronic device sealing housing 1 with a snap-fit ​​slot that matches the component housing 4. The electronic device sealing housing 1 has a corresponding snap-fit ​​or slot to facilitate the component engaging with the sealing housing. The component housing 4 is made of polypropylene with 40% mineral filler or polypropylene with 30% glass fiber, etc. The component housing 4 has one or more ventilation channels in the middle to facilitate air convection. The electronic device sealing housing 1 and the component housing 4 are fastened together by limiters 4b. The outer ring of the component housing 4 is provided with no less than two limiters 4b for locking onto the electronic device sealing housing 1, with four being optimal. The limiters 4b can be locked by sliding the limit ears (i.e., trapezoidal mounting blocks) into the slots on the electronic device sealing housing 1, or by adhesive or magnetic mounting.

[0024] An outer waterproof and breathable membrane 5 is provided at the bottom of the component housing 4, and an inner waterproof and breathable membrane 2 is provided at the opening at the top of the component housing 4. The outer waterproof and breathable membrane 5 is bonded to the bottom plane of the component housing 4 by heat welding or ultrasonic welding, so that its lower surface is flush with the groove opening at the bottom of the component housing 4; the inner waterproof and breathable membrane 2 is bonded to the top plane of the component housing 4 by heat welding or ultrasonic welding, so that its upper surface is flush with the opening at the top of the component housing 4; both the inner and outer waterproof and breathable membranes are ePTFE membranes, which are multi-microporous membranes formed by expanding and stretching polytetrafluoroethylene. The inner waterproof and breathable membrane 2 can be a composite membrane of ePTFE and non-woven fabric layers; one or more breathable channels are opened in the middle of the inner waterproof and breathable membrane 2. A desiccant is placed inside the component housing 4. The desiccant is one or more of magnesium chloride desiccant, calcium chloride desiccant, or silica gel desiccant, and the bottom of the plastic component housing 4 can prevent the desiccant from contacting the outside, so that the desiccant will not become ineffective due to absorbing too much external moisture.

[0025] The component housing 4 is provided with a boss 4a. A sealing ring 3 is provided on the component housing 4 between the boss 4a and the limiter 4b. The sealing ring 3 is made of silicone rubber or EPDM rubber with a Shore hardness of 40-70HA. The sealing ring cooperates with the limiter to lock the component on the electronic device sealing housing and play a sealing role.

[0026] This component can achieve pressure balance between the inside and outside of electronic devices and prevent external contaminants such as liquid water and dust from entering the electronic devices. At the same time, it can absorb moisture inside the electronic devices when they are not working, effectively preventing short circuits and extending the life of the electronic devices. It can be easily installed and removed by rotating in both directions, making it convenient for maintenance and replacement.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detachable and replaceable breathable and dehumidifying component for electronic devices, comprising an electronic device sealing housing (1) with a bayonet adapted to the component housing (4), characterized in that: The sealed housing (1) of the electronic device and the component housing (4) are fastened together by a limiter (4b). The bottom of the component housing (4) is provided with an outer waterproof and breathable membrane (5), and the opening at the top of the component housing (4) is provided with an inner waterproof and breathable membrane (2). The component housing (4) contains a desiccant.

2. The removable and replaceable breathable and dehumidifying component for electronic devices according to claim 1, characterized in that: The component housing (4) is provided with a boss (4a), and a sealing ring (3) is provided on the component housing (4) between the boss (4a) and the limiter (4b).

3. The removable and replaceable breathable and dehumidifying component for electronic devices according to claim 1, characterized in that: The external waterproof and breathable membrane (5) is bonded to the bottom plane of the component housing (4) by thermal welding or ultrasonic welding.

4. The removable and replaceable breathable and dehumidifying component for electronic devices according to claim 1, characterized in that: The inner waterproof and breathable membrane (2) is bonded to the top plane of the component housing (4) by thermal welding or ultrasonic welding.

5. A detachable and replaceable breathable and dehumidifying component for electronic devices according to claim 1, characterized in that: The component housing (4) has one or more ventilation channels in the middle.

6. The removable and replaceable breathable and dehumidifying component for electronic devices according to claim 1, characterized in that: The outer ring of the component housing (4) is provided with not less than two limiters (4b) for locking onto the electronic device sealing housing (1).

7. A detachable and replaceable breathable and dehumidifying component for electronic devices according to claim 1, characterized in that: The desiccant is one or more of magnesium chloride desiccant, calcium chloride desiccant, or silica gel desiccant.

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