Waterproof electronic equipment

Abstract

The utility model discloses waterproof electronic equipment, and relates to the technical field of electronic products, and the waterproof electronic equipment comprises an equipment housing and an electric appliance assembly. The equipment shell comprises a first shell and a second shell; the first shell and the second shell are connected in a sealing manner, so that an internal space defined by the first shell and the second shell forms a waterproof mounting cavity; the electric appliance assembly is arranged in the waterproof installation cavity, and a waterproof film layer is arranged on the surface. The waterproof effect of the equipment can be further improved through the waterproof and waterproof film layer combined design of the equipment shell, even if the waterproof effect of the equipment shell fails, the waterproof film layer can achieve the waterproof effect again, the problem of short circuit caused by the fact that the electric appliance assembly makes contact with water is avoided, and normal operation of the equipment is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of electronic products, and particularly to a waterproof electronic device. Background Art

[0002] Electronic devices such as attendance machines, access control machines, and surveillance cameras usually require a certain level of waterproofing, such as an outdoor waterproofing level reaching IP65 / IP66, etc., to protect the electrical components (such as PCB modules) inside the device.

[0003] Currently, the main waterproofing means for the above-mentioned electronic devices are as follows: 1. Achieving waterproofing by tightly compressing the device housing and the sealing ring; 2. Achieving waterproofing through a diversion design on the device; 3. Achieving waterproofing by hard extrusion between the device housings.

[0004] Regarding means 1, it is easy for the waterproofing of the device to fail due to factors such as deformation of the device housing, uneven processing, or aging of the sealing ring due to high outdoor temperatures; regarding means 2, the diversion design usually forms air convection inside the device. When used in a scenario with high environmental humidity, water vapor is likely to enter the device and condense into water droplets on the surface of the electronic components, thereby causing a short circuit in the electrical components; 3. Regarding means 3, the designed interference amount is usually less than 0.2 mm. However, it is difficult to control the deformation amount of the device housing made of plastic material, which easily leads to the failure of the device's waterproofing. It can be seen that there are still deficiencies in the waterproofing effect of existing electronic devices, and there is an urgent need to provide a new solution. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a waterproof electronic device to solve the technical problem of insufficient waterproofing effect of existing electronic devices.

[0006] To achieve the above technical purpose, this application provides a waterproof electronic device, including a device housing and electrical components;

[0007] The device housing includes a first housing and a second housing;

[0008] The first housing is hermetically connected to the second housing, so that the internal space enclosed between the first housing and the second housing forms a waterproof installation cavity;

[0009] The electrical components are arranged in the waterproof installation cavity, and a waterproof film layer is provided on the surface.

[0010] Further, a sealing ring is provided between the first housing and the second housing;

[0011] The first housing and the second housing are hermetically connected by squeezing the sealing ring.

[0012] Further, a sealing groove for installing the sealing ring is provided on the first housing and / or the second housing.

[0013] Further, sealing grooves are provided on both the first housing and the second housing;

[0014] When the first housing and the second housing are fixed, the two sealing grooves are arranged in alignment and conduction;

[0015] One sealing ring is arranged between the two sealing grooves.

[0016] Further, sealing grooves are provided on both the first housing and the second housing;

[0017] When the first housing and the second housing are fixed, the two sealing grooves are arranged in dislocation;

[0018] One sealing ring is arranged in each of the two sealing grooves.

[0019] Further, at the position where the first housing is connected to the second housing, a first outer annular flange and a first inner annular flange are provided which are circumferentially arranged along its own circumference;

[0020] The first inner annular flange is located in the first outer annular flange, and a sealing groove is formed between it and the first outer annular flange;

[0021] One sealing ring is arranged in the sealing groove;

[0022] At the position where the second housing is connected to the first housing, a second outer annular flange is provided which is circumferentially arranged along its own circumference;

[0023] The second outer annular flange can extend into the sealing groove and contact and abut against one sealing ring located in the sealing groove.

[0024] Further, annular clamping grooves are provided on both side surfaces of the sealing groove which are arranged circumferentially along its own circumference;

[0025] The sealing ring is provided with annular protrusions which are respectively and correspondingly clamped into the annular clamping grooves.

[0026] Further, at the position where the second housing is connected to the first housing, a second inner annular flange is further provided which is circumferentially arranged along its own circumference;

[0027] The second inner annular flange is located in the second outer annular flange, and a connecting groove is formed between it and the second outer annular flange;

[0028] The first inner annular flange can be inserted into the connecting groove.

[0029] Further, another said sealing ring is provided in the connection groove;

[0030] The first inner annular flange can be inserted into the connection groove and contact and abut against another said sealing ring.

[0031] Further, the waterproof film layer is a PRCVD waterproof film.

[0032] As can be seen from the above technical solutions, for the waterproof electronic device designed in this application, the first housing and the second housing are hermetically connected to achieve the sealing and waterproofing of the device housing, playing the first layer of waterproofing role; at the same time, a waterproof film layer is added to the surface of the electrical components in the waterproof installation cavity, playing the second layer of waterproofing role; the combined design of the device housing waterproofing + waterproof film layer can further improve the waterproof effect of the device. Even if the waterproofing function of the device housing fails, the waterproof film layer can still play a waterproofing role again, avoiding the short - circuit problem caused by the electrical components contacting water and ensuring the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a cross - sectional view of a waterproof structure provided in the present application;

[0035] Figure 2 is Figure 1 an enlarged schematic view of position A in

[0036] In the figure: 1. Device housing; 10. Waterproof installation cavity; 11. First housing; 110. Sealing groove; 111. First outer annular flange; 112. First inner annular flange; 12. Second housing; 120. Connection groove; 121. Second outer annular flange; 122. Second inner annular flange; 2. Electrical components; 21. PCB module; 22. LCD module; 3. Sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The following will clearly and completely describe the technical solutions of the embodiments of the present application with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the embodiments of the present application.

[0038] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0039] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a replaceable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0040] The embodiments of the present application disclose a waterproof electronic device.

[0041] Please refer to Figure 1 , an embodiment of a waterproof electronic device provided in the embodiments of the present application includes:

[0042] A device housing 1 and an electrical component 2. The electrical component 2 includes, but is not limited to, electrical components such as a PCB module 21 and an LCD module 22, without limitation.

[0043] The device housing 1 includes a first housing 11 and a second housing 12. The first housing 11 is hermetically connected to the second housing 12 so that the internal space enclosed between the first housing 11 and the second housing 12 forms a waterproof installation cavity 10. For the fixed connection method between the housings, it can be screw fastening, snap connection fixing, etc., without limitation.

[0044] The electrical component 2 is disposed in the waterproof installation cavity 10 and a waterproof film layer is provided on the surface.

[0045] For the waterproof electronic device designed in the present application, the first housing 11 is hermetically connected to the second housing 12 to achieve the sealing and waterproofing of the device housing 1, playing the first layer of waterproofing role; at the same time, a waterproof film layer design is added to the surface of the electrical component 2 in the waterproof installation cavity 10, playing the second layer of waterproofing role; the combination design of the waterproof device housing 1 and the waterproof film layer can further improve the waterproof effect of the device. Even if the waterproofing function of the device housing 1 fails, the waterproof film layer can still play the waterproofing role again, avoiding the electrical component 2 from contacting water and causing a short circuit problem, and ensuring the normal operation of the device.

[0046] The above is the first embodiment of a waterproof electronic device provided by the embodiments of the present application. The following is the second embodiment of a waterproof electronic device provided by the embodiments of the present application. For details, please refer to Figures 1 to 2 .

[0047] Based on the solution of the above-mentioned first embodiment:

[0048] Further, as Figure 1 and Figure 2 shown, for the sealing connection design between the first housing 11 and the second housing 12, a sealing ring 3 can be provided between the first housing 11 and the second housing 12; then, the first housing 11 and the second housing 12 are hermetically connected by squeezing the sealing ring 3.

[0049] Further, as Figure 2 shown, in order to facilitate the installation of the sealing ring 3, a sealing groove 110 for installing the sealing ring 3 is provided on the first housing 11 and / or the second housing 12. It can be understood that the sealing groove 110 is provided on one of the first housing 11 and the second housing 12, or both are provided with the sealing groove 110.

[0050] Further, taking the design that both the first housing 11 and the second housing 12 are provided with the sealing grooves 110 and the two sealing grooves 110 are aligned and conducted when the first housing 11 and the second housing 12 are fixed as an example:

[0051] Then, a sealing ring 3 is arranged between the two sealing grooves 110, that is, a sealing ring 3 is arranged between the two sealing grooves 110. The thickness of the sealing ring 3 should be greater than the sum of the depths of the two sealing grooves 110 to ensure good sealing effect when being squeezed.

[0052] Further, taking the design that both the first housing 11 and the second housing 12 are provided with the sealing grooves 110 and the two sealing grooves 110 are misaligned when the first housing 11 and the second housing 12 are fixed as an example:

[0053] Then, a sealing ring 3 can be respectively arranged in the two sealing grooves 110. The thickness of the sealing ring 3 can be designed to be greater than the depth of the sealing groove 110 to ensure that part of the sealing ring 3 extends out of the sealing groove 110 and is squeezed to achieve the sealing effect; of course, if there is a structure that can be embedded in the sealing groove 110 and contact the sealing ring 3 in the sealing groove 110, the thickness of the sealing ring 3 can be less than or equal to the depth of the sealing groove 110.

[0054] Further, as Figure 2As shown in the figure, at the position where the first housing 11 is connected to the second housing 12, there is a first outer annular flange 111 and a first inner annular flange 112 that are circumferentially arranged along its own circumference; the first inner annular flange 112 is located in the first outer annular flange 111, and a sealing groove 110 is formed between the first inner annular flange 112 and the first outer annular flange 111; a sealing ring 3 is arranged in the sealing groove 110.

[0055] At the position where the second housing 12 is connected to the first housing 11, there is a second outer annular flange 121 that is circumferentially arranged along its own circumference; the second outer annular flange 121 can extend into the sealing groove 110 and contact and abut against a sealing ring 3 located in the sealing groove 110. The second outer annular flange is provided to cooperate with the sealing groove 110, increasing the cooperation stability between the first housing 11 and the second housing 12, and at the same time, the sealing ring 3 in the sealing groove 110 can be extruded to achieve a sealing effect.

[0056] Furthermore, annular clamping grooves (not shown in the figure) are arranged on both side surfaces of the sealing groove 110 along its own circumference; annular protrusions (not shown in the figure) that are correspondingly clamped into the annular clamping grooves are arranged on the sealing ring 3. By increasing the cooperation of the annular clamping grooves and the annular protrusions, the sealing contact area between the sealing ring 3 and the sealing groove 110 can be increased, further improving the sealing effect. At the same time, the cooperation between the annular protrusions and the annular clamping grooves is also beneficial to the fixed limit of the sealing ring 3, and the installation and fixation of the sealing ring 3 can be better realized.

[0057] Furthermore, as Figure 2 shown, at the position where the second housing 12 is connected to the first housing 11, there is also a second inner annular flange 122 that is circumferentially arranged along its own circumference; the second inner annular flange 122 is located in the second outer annular flange 121, and a connection groove 120 is formed between the second inner annular flange 122 and the second outer annular flange 121; the first inner annular flange 112 can be inserted into the connection groove 120. By adding the design of the second inner annular flange to form a connection groove 120 with the second outer annular flange, and making the first inner annular flange 112 inserted into the connection groove 120, a class S-shaped gap can be formed at the cooperation position between the first housing 11 and the second housing 12, which can better block external water vapor and help improve the sealing effect.

[0058] To further improve the sealing effect of the equipment housing 1, another sealing ring 3 (not shown in the attached drawings of this application) is arranged in the connection groove 120; the first inner annular flange 112 can be inserted into the connection groove 120 and contact and abut against another sealing ring 3. Figure 2

[0059] ​Further, the waterproof film layer is a PRCVD waterproof thin film, that is, a waterproof thin film prepared based on the plasma enhanced chemical vapor deposition technology (abbreviated as PRCVD nano - coating process); specifically, through the decomposition reaction of the chemical solution and the electric field, the electric field is used to excite the chemical solution to form plasma. The plasma clusters for forming the waterproof thin film are evenly diffused in the coating PRCVD equipment cavity. The plasma clusters start to adsorb on the surface of electrical components (such as the PCB module 21, etc.), and begin to penetrate into the surface structure of the product. The plasma starts to chemically combine with the product surface and is pumped out of the coating cavity by the vacuum acquisition equipment to form an insulating waterproof film layer (waterproof thin film). Since the waterproof film layer is an insulating material and cannot conduct electricity, water droplets show a large contact angle on its surface and cannot directly contact the surface of the electrical component 2, that is, water cannot contact the electrical component and cannot form a leakage current path.

[0060] The above has introduced in detail a waterproof electronic device provided by the present application. For those of ordinary skill in the art, according to the idea of the embodiments of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A waterproof electronic device, characterized in that: It comprises a device housing (1) and an electrical component (2); The device housing (1) comprises a first shell (11) and a second shell (12); The first shell (11) and the second shell (12) are sealedly connected, so that the internal space enclosed between the first shell (11) and the second shell (12) forms a waterproof installation cavity (10); The electrical component (2) is arranged in the waterproof installation cavity (10), and a waterproof film layer is provided on the surface.

2. A waterproof electronic device according to claim 1, characterized in that: A sealing ring (3) is provided between the first shell (11) and the second shell (12); The first shell (11) and the second shell (12) are sealed by squeezing the sealing ring (3).

3. A waterproof electronic device according to claim 2, characterized in that: The first shell (11) and / or the second shell (12) is provided with a sealing groove (110) for mounting the sealing ring (3).

4. A waterproof electronic device according to claim 3, characterized in that: The first shell (11) and the second shell (12) are both provided with a sealing groove (110); The two sealing grooves (110) are aligned and connected when the first shell (11) and the second shell (12) are fixed; A sealing ring (3) is arranged between the two sealing grooves (110).

5. A waterproof electronic device according to claim 3, characterized in that: The first shell (11) and the second shell (12) are both provided with a sealing groove (110); The two sealing grooves (110) are staggered when the first shell (11) and the second shell (12) are fixed; One sealing ring (3) is disposed in each of the two sealing grooves (110).

6. A waterproof electronic device according to claim 3, characterized in that: A first outer annular flange (111) and a first inner annular flange (112) arranged along the circumference of the first shell (11) and the second shell (12) are provided at the connection position; The first inner annular flange (112) is located in the first outer annular flange (111), and forms the sealing groove (110) between the first inner annular flange (112) and the first outer annular flange (111); A sealing ring (3) is arranged in the sealing groove (110); A second outer annular flange (121) is provided at a position where the second shell (12) is connected to the first shell (11) and is arranged along its circumference; The second outer annular flange (121) can extend into the sealing groove (110) and contact and abut against a sealing ring (3) located in the sealing groove (110).

7. A waterproof electronic device according to claim 6, characterized in that: Both side surfaces of the sealing groove (110) are provided with an annular clamping groove arranged around the circumference thereof; The sealing ring (3) is provided with annular protrusions which are snapped into the annular snap grooves in a one-to-one correspondence.

8. The waterproof electronic device according to claim 6, characterized in that: A second inner annular flange (122) is also provided at a position where the second shell (12) is connected to the first shell (11) and is arranged along its circumference; The second inner annular flange (122) is located in the second outer annular flange (121), and a connecting groove (120) is formed between the second inner annular flange (122) and the second outer annular flange (121); The first inner annular flange (112) can be inserted into the connecting groove (120).

9. A waterproof electronic device according to claim 8, characterized in that: Another sealing ring (3) is provided in the connecting groove (120); The first inner annular flange (112) can be inserted into the connecting groove (120) and contact and abut against another sealing ring (3).

10. The waterproof electronic device according to claim 1, characterized in that: The waterproof membrane layer is a PRCVD waterproof film.

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