Terminal device with enhanced waterproof external interface

Abstract

The utility model discloses a terminal device with a reinforced waterproof external interface, which comprises a shell, an external interface device and a waterproof structural member, the external interface device is arranged in the shell, the waterproof structural member covers the whole external interface device, and the edge of the waterproof structural member and the shell are sealed through glue. The whole external interface device is covered by the waterproof structural member, and the edge of the waterproof structural member is sealed by glue, so that the whole external interface device can be sealed, the waterproof effect is ensured, and the waterproof sealing effect can be enhanced through the waterproof structural member no matter whether a sealing structure exists on the external interface device or not or no matter whether the sealing structure fails. The problem that an existing waterproof structure is invalid in waterproof performance after being used for a long time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronics, and particularly relates to a terminal device with enhanced waterproofing for external interfaces. Background Art

[0002] There are increasingly high requirements for the IP (Ingress Protection) waterproof and dustproof levels of external interfaces of electronic products, especially terminal devices such as mobile phones and tablet computers. Conventional waterproof devices and structural designs cannot meet the increasingly stringent reliability tests, especially the airtightness and waterproof tests after various drop and drum mechanical strength reliability tests.

[0003] The conventional IP68 (6 indicates a dustproof level of 6, completely blocking dust; 8 indicates a waterproof level of 8, and under specified conditions, it can operate in deeper water) level waterproof structure solution is to use a sealing structure (such as a waterproof rubber ring, soft rubber sealing ring) provided on the external interface. The sealing structure is pressed against the housing to seal, and the sealing structure forms the boundary between the inside and outside of the housing of the terminal device. Most of the external interface is directly connected to the inside of the housing behind the soft rubber sealing ring. Such a waterproof structure solution can only ensure the reliability of the whole machine or the airtightness before leaving the factory. After mechanical strength reliability tests or long-term actual use by consumers, the local waterproof rubber ring will fail, resulting in airtightness failure, and thus cannot meet the requirements of the IP68 level.

[0004] For example, after the external interface (such as the headphone jack, USB interface, etc.) is impacted or subjected to long-term plugging and unplugging forces, the original sealing structure becomes unreliable; for example, the soft rubber sealing ring will deform, the tightness will become loose, or the body of the external interface will be skewed due to multiple plugging and unplugging forces, resulting in airtightness failure, which will cause the waterproof performance of the external interface area to fail.

[0005] Therefore, the existing technology still needs to be improved and enhanced. Summary of the Utility Model

[0006] In view of the deficiencies of the above-mentioned existing technology, the purpose of the present utility model is to provide a terminal device with enhanced waterproofing for external interfaces to solve the problem that the waterproof performance fails after long-term use of the existing waterproof structure.

[0007] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0008] A terminal device with enhanced waterproofing for external interfaces includes a housing and an external interface device. The external interface device is installed inside the housing, and it further includes a waterproof structure member. The waterproof structure member covers the entire external interface device, and the edge of the waterproof structure member is sealed with the housing through glue sealing.

[0009] In the terminal device with enhanced waterproofing for the external interface, the external interface device is installed on the interface slot at the bottom of the housing. Above the bottom of the housing, there is a mounting plate, and the waterproof structure covers the entire external interface device; the edge of the waterproof structure is flush with the mounting plate, and the edge of the waterproof structure is sealed on the mounting plate through glue sealing.

[0010] In the terminal device with enhanced waterproofing for the external interface, the waterproof structure includes a cover body, a first assembly surface, and a second assembly surface; the first assembly surface is located on one side of the cover body and is integrally formed with the cover body, and the second assembly surface is located on the other side of the cover body and abuts against the inner side surface of the housing; the edge of the cover body, the edge of the first assembly surface, and the edge of the second assembly surface form the outer edge of the entire waterproof structure; on the mounting plate, there is a glue sealing area for glue sealing along the outside of the outer edge.

[0011] In the terminal device with enhanced waterproofing for the external interface, the cover body is adapted to the outer contour of the external interface device.

[0012] In the terminal device with enhanced waterproofing for the external interface, one or two screw holes are opened on the first assembly surface, and the cover body is fixed to the mounting plate by screwing through the screw holes.

[0013] In the terminal device with enhanced waterproofing for the external interface, the flexible circuit board of the external interface device is clamped between the mounting plate and the first assembly surface, and the contact part between the flexible circuit board and the first assembly surface is sealed with dotting glue.

[0014] In the terminal device with enhanced waterproofing for the external interface, a gap is provided on the side surface of the cover body, and the flexible circuit board of the external interface device extends out from the gap, and the contact part between the flexible circuit board and the gap is sealed with dotting glue.

[0015] In the terminal device with enhanced waterproofing for the external interface, the external interface device is placed inside the housing, and the waterproof structure is adhered to the opening of the housing to cover the entire external interface device inside the housing, and the contact part between the edge of the waterproof structure and the opening is sealed through glue sealing.

[0016] In the terminal device with enhanced waterproofing for the external interface, a gap is formed between the edge on one side of the waterproof structure and the opening on the same side of the housing, and the flexible circuit board extends out from the gap, and the contact part between the flexible circuit board and the gap is sealed with dotting glue.

[0017] In the terminal device with enhanced waterproofing for the external interface, a first bonding edge is provided around the bottom of the waterproof structure, and a second bonding edge is provided inside the opening of the housing. The first bonding edge and the second bonding edge are fixed by gluing, and the contact part between the edge of the first bonding edge and the housing is sealed with dotting glue.

[0018] Compared with the prior art, the terminal device with enhanced waterproofing for external interfaces provided by the present utility model includes a housing, an external interface device, and a waterproof structural member. The external interface device is installed inside the housing, and the waterproof structural member covers the entire external interface device. The edge of the waterproof structural member is sealed to the housing by glue sealing. By covering the entire external interface device with the waterproof structural member and glue-sealing the edge of the waterproof structural member, the entire external interface device can be sealed to ensure the waterproof effect. Whether there is a sealing structure on the external interface device or the sealing structure fails, this waterproof structural member can be used to enhance the waterproof sealing effect, solving the problem that the waterproof performance of the existing waterproof structure will fail after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an exploded view of the terminal device in Embodiment 1 provided by the present utility model.

[0020] Figure 2 is a schematic structural diagram of the external interface device installed inside the housing in Embodiment 1 provided by the present utility model.

[0021] Figure 3 is a schematic structural diagram after the waterproof structural member is installed in Embodiment 1 provided by the present utility model.

[0022] Figure 4 is a sectional view of the terminal device in Embodiment 1 provided by the present utility model.

[0023] Figure 5 is a schematic structural diagram of the front and back of the waterproof structural member in Embodiment 1 provided by the present utility model.

[0024] Figure 6 is an exploded view of the terminal device in Embodiment 2 provided by the present utility model.

[0025] Figure 7 is a sectional view of the terminal device in Embodiment 2 provided by the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present utility model provides a terminal device with enhanced waterproofing for external interfaces. To make the objectives, technical solutions, and advantages of the present utility model clearer and more definite, the following further elaborates on the present utility model by way of examples with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0027] Please refer to Figures 1 to 3, the terminal device with enhanced waterproofing for external interfaces provided by the present utility model includes a housing 1, an external interface device 2, and a waterproof structural member 3; the external interface device 2 is installed inside the housing, and the waterproof structural member 3 covers the entire external interface device 2 located inside the housing, and the edge of the waterproof structural member 3 is sealed with the housing 1 through glue sealing. The external interface device 2 is sealed and isolated through the waterproof structural member and the glue sealing method, ensuring that water does not come into contact with other devices inside the housing, thereby solving the problem that the waterproof performance of the existing waterproof structure will fail after long-term use.

[0028] In the first embodiment, for terminal devices with limited space such as mobile phones, specifically, the external interface device 2 is installed on the interface slot 7 at the bottom of the housing 1, and above the bottom of the housing 1, there is an installation plate 8 for providing support, installation holes (such as screw holes) and installation positions for corresponding devices. The waterproof structural member 3 covers the entire external interface device 2 (including the main body of the external interface device located in the inner cavity and the interface part of the external interface device located on the inner side of the housing); the edge of the waterproof structural member 3 (including the edge of the main body of the external interface device in the inner cavity and the edge of the interface part on the inner side of the housing) is flush with the installation plate 8 (in the same plane), and the edge of the waterproof structural member 3 is sealed on the installation plate 8 through glue sealing.

[0029] The glue sealing means using dot glue or adhesive tape for sealing; dot glue can be selected when the space inside the housing is small, and adhesive foam tape can be selected when the space is large. By covering the entire external interface device 2 with the waterproof structural member 3 and performing dot glue or adhesive tape sealing on the edge of the waterproof structural member 3, the entire external interface device 2 can be sealed to ensure the waterproof effect. This waterproof structural member can be applied to various devices with external interface devices and waterproof requirements.

[0030] Among them, the external interface device 2 can be screwed and fixed on the installation plate 8 in the inner cavity of the housing through a fixing member 4, or the fixing member 4 can be removed and directly welded and fixed. Please refer to Figure 4 , the external interface device 2 can be a device such as a USB interface, a headphone interface, a charging interface, etc. with a sealing structure 9 (such as a waterproof rubber ring or a soft rubber sealing ring). In this way, combined with the existing sealing structure of the external interface device (as shown in the circle in Figure 4 , which is the first-level waterproof sealing structure between the external interface device 2 and the housing. Even if water enters through the part of the external interface device exposed outside, the sealing structure can block the water from continuing to flow into the interior), and the waterproof structural member 3 added to the internal cavity of the whole machine provided in this embodiment, a two-stage waterproof effect can be formed, greatly enhancing the waterproof performance of the whole machine.

[0031] The external interface device 2 may also be various interface devices without a waterproof rubber ring or soft rubber sealing ring. In this case, a more reliable waterproof structure member 3 directly forms a strengthened waterproof sealing effect. The waterproof reliability of the waterproof structure member 3 is far higher than that of the existing waterproof structure solutions. Even if there is no sealing structure on the external interface device or the first-level waterproof function implemented by this sealing structure fails, the waterproof airtightness at the external interface can still be continuously guaranteed by the waterproof structure member 3.

[0032] Please refer to Figure 3 and Figure 5 , the waterproof structure member 3 includes a cover body 31, a first assembly surface 32 and a second assembly surface 33; the first assembly surface 32 is located on one side of the cover body 31 and is integrally formed with the cover body 31, and the second assembly surface 33 is located on the other side of the cover body 31 and abuts against the inner side surface of the housing; the edge of the cover body 31 (i.e., the part without an assembly surface), the edge of the first assembly surface 32 and the edge of the second assembly surface 33 form the outer edge of the entire waterproof structure member 3; on the mounting plate 8, a glue sealing area is provided along the outside of the outer edge. If the glue dispensing method is used, the glue sealing area is a circle of glue dispensing grooves 5; if the method of sticking foam glue is used, the glue sealing area is a circle of bonding surfaces for sticking glue.

[0033] The cover body 31 is equivalent to a lid and is adapted to the outer contour of the external interface device 2. The shape of the external interface device is different, and the structure of the cover body 31 changes correspondingly. It is preferred that the structure of the cover body 31 can wrap the external interface device 2, and plastic or soft rubber materials can be used. Such as Figure 1 above, in the middle on the right is the TYPE-C interface device, and at the top right is the waterproof structure member adapted to the contour of the TYPE-C interface device; in the middle on the left is the headphone interface device, and at the top left is the waterproof structure member adapted to the contour of the headphone interface device. The outer shapes of the cover bodies corresponding to the TYPE-C interface device on the right and the headphone interface device on the left are different.

[0034] Taking Figure 5 the direction shown in the front view of the upper waterproof structure member 3 as an example, the first assembly surface 32 is equivalent to a sunken surface of the cover body 31 and is in the same plane as the mounting plate 8, which is used to increase the contact area during glue sealing between the cover body 31 and the mounting plate 8, and also facilitates the fixing of the cover body 31 in the interface slot. The first assembly surface 32 can be directly welded or pasted on the mounting plate 8, or one or two screw holes 34 are opened on the first assembly surface 32 to screw-fix the cover body to the interface slot 7.

[0035] The second assembly surface 33 is equivalent to a vertical side of the cover body 31, which is used to increase the contact area between the cover body and the inner side surface of the housing to ensure the sealing performance of the interface part of the external interface device 2. The shapes of the first assembly surface 32 and the second assembly surface 33 are adjusted according to the outer contour of the external interface device 2, the free space on the mounting plate 8 and the inner side surface of the housing.

[0036] The dispensing groove 5 must be on the outermost side of the entire waterproof structural member 3. By dispensing glue on this circle of dispensing grooves 5 to seal the outer edge of the entire waterproof structural member 3, the airtightness and sealing performance of the overall external interface device can be ensured. When dispensing glue, first select machine dispensing, and then manually replenish glue at the points where the machine cannot dispense glue, at the local points where the glue is not fully dispensed or the dispensing is not in place.

[0037] If adhesive sealing is adopted, the dispensing groove 5 is replaced by the bonding surface of the adhesive. The size of the bonding surface can be wider than that of the dispensing groove. By using foam adhesive to fix it on the bonding surface of the entire waterproof structural member 3, the entire waterproof structural member 3 can also be sealed with the housing 1.

[0038] As Figure 1 and Figure 3 shown, the external interface device 2 on the right is a TYPE-C interface device. The flexible printed circuit board 6 (FPC) extending therefrom transmits electrical signals to the system board. Based on the position where the flexible printed circuit board 6 extends close to the mounting board 8, the flexible printed circuit board 6 can be clamped between the mounting board 8 and the first assembly surface 32, and the contact part between the flexible printed circuit board 6 and the first assembly surface 32 is sealed with dispensing glue. On the left is the headphone jack device. Based on the position where the flexible printed circuit board extends having a preset height relative to the mounting board 8, a gap can also be provided on the side surface of the cover 31. The flexible printed circuit board 6 extends from the gap, and the contact part between the flexible printed circuit board 6 and the gap is sealed with dispensing glue.

[0039] In specific implementation, for equipment with a relatively large inner cavity space (such as a diving video device), buckles can be provided on the inner side surface of the mounting board 8 and the interface part passing through. The waterproof structural member 3 (replacing the assembly surface and the fixing member with corresponding buckles) is snap-fitted with the buckles, and the snap-fitting part is sealed with glue.

[0040] In the second embodiment, for the structure where several external interface devices are combined together, as Figure 6 and Figure 7 shown (to distinguish from the first embodiment, some reference numerals are modified as follows), two different types of external interface devices 2(2) are combined together and share a flexible printed circuit board 6(2). The shapes of the housing 1(2) and the waterproof structural member 3(2) are adaptively changed. The external interface device 2(2) is placed inside the housing 1(2), and the waterproof structural member 3(2) is fixed on the opening of the housing 1(2) to cover the entire external interface device located inside the housing. The contact part between the edge of the waterproof structural member 3(2) and the opening of the housing 1(2) is sealed by glue sealing.

[0041] Among them, the waterproof structural member 3(2) is a cover plate adapted to the opening of the housing 1(2), and its size and shape can cover the opening of the housing 1(2). A very small gap will be formed between the edge of one side of the waterproof structural member 3(2) and the opening on the same side of the housing 1(2). The flexible printed circuit board 6(2) extends out from the gap, and the contact part between the flexible printed circuit board 6(2) and the gap is sealed with dotting glue.

[0042] Preferably, a first bonding edge 31(2) is provided at the bottom of the waterproof structural member 3(2), and a second bonding edge 11(2) is provided inside the opening of the housing 1(2). The bottom surface of the first bonding edge 31(2) and the top surface of the second bonding edge 11(2) are fixed by double-sided tape or foam adhesive to prevent the waterproof structural member 3(2) from moving during glue sealing. The connection between the edge of the first bonding edge 31(2) and the housing is sealed with glue.

[0043] Due to the different types of external interface devices, their sizes are different. For example, Figure 6 as shown, the two external interface devices on the left are shorter than those on the right. When the bottom surface of the waterproof structural member 3(2) abuts against the top surface of the higher external interface device, a hollow area will be formed between the bottom surface of the waterproof structural member 3(2) and the top surface of the shorter external interface device. This hollow area may affect the position and stability of the external interface device. Preferably, a support bar 32(2) is provided on the bottom surface of the waterproof structural member 3(2), and the support bar 32(2) is located above the shorter external interface device and abuts against the top surface of the shorter external interface device.

[0044] In summary, for the terminal device with enhanced waterproofing of the external interface of the present invention, the waterproof structural member is used to cover the external interface device and is sealed with dotting glue or adhesive. Whether there is a sealing structure on the external interface device or the sealing structure fails, the waterproof structural member can be used to enhance the waterproof sealing effect. The waterproof structural member is more reliable than the waterproof rubber ring or soft rubber sealing ring, and the passing rate of the one-time airtightness test during production is greatly improved; the waterproof performance of the external interface of the entire system is greatly improved, and it is applicable to more stringent IP68 / 69 or higher-level waterproof airtightness requirements.

[0045] It should be understood that the application of the present invention is not limited to the above examples. For those of ordinary skill in the art, improvements or changes can be made according to the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present invention.

Claims

1. A terminal device with enhanced waterproofing for external interfaces, comprising a housing and an external interface device, wherein the external interface device is installed inside the housing, characterized in that, It further includes a waterproof structural member which covers the entire external interface device, and the edge of the waterproof structural member is sealed with the housing by glue sealing.

2. The terminal device with enhanced waterproofing for the external interface according to claim 1, wherein The external interface device is installed on the interface slot at the bottom of the housing. There is a mounting plate above the bottom of the housing. The waterproof structural member covers the entire external interface device; the edge of the waterproof structural member is flush with the mounting plate, and the edge of the waterproof structural member is sealed on the mounting plate by glue sealing.

3. The terminal device with enhanced waterproofing for the external interface according to claim 2, characterized in that, The waterproof structural member includes a cover body, a first assembly surface and a second assembly surface; the first assembly surface is located on one side of the cover body and is integrally formed with the cover body, and the second assembly surface is located on the other side of the cover body and abuts against the inner side surface of the housing; the edge of the cover body, the edge of the first assembly surface and the edge of the second assembly surface form the outer edge of the entire waterproof structural member; on the mounting plate, there is a glue sealing area for glue sealing along the outside of the outer edge.

4. The terminal device with enhanced waterproofing for the external interface according to claim 3, characterized in that, The cover body is adapted to the outer contour of the external interface device.

5. The terminal device with enhanced waterproofing for the external interface according to claim 4, characterized in that One or two screw holes are formed on the first assembly surface, and the cover body is fixed to the mounting plate by screwing through the screw holes.

6. The terminal device with enhanced waterproofing for the external interface according to claim 3, characterized in that, The flexible circuit board of the external interface device is clamped between the mounting plate and the first assembly surface, and the contact part between the flexible circuit board and the first assembly surface is sealed with dotting glue.

7. The terminal device with enhanced waterproofing for the external interface according to claim 3, characterized in that, A gap is provided on the side surface of the cover body, and the flexible circuit board of the external interface device extends out from the gap, and the contact part between the flexible circuit board and the gap is sealed with dotting glue.

8. The terminal device with enhanced waterproofing for the external interface according to claim 1, characterized in that The external interface device is placed in the housing, and the waterproof structural member is adhered to the opening of the housing to cover the entire external interface device located in the housing, and the contact part between the edge of the waterproof structural member and the opening is sealed by glue sealing.

9. The terminal device with enhanced waterproofing for the external interface according to claim 8, characterized in that, A gap is formed between the edge of one side of the waterproof structural member and the opening on the same side of the housing, and the flexible circuit board extends out from the gap, and the contact part between the flexible circuit board and the gap is sealed with dotting glue.

10. The terminal device with enhanced waterproofing for the external interface according to claim 8, characterized in that, A first bonding edge is provided on the bottom of the waterproof structural member, and a second bonding edge is provided on the inner side of the opening of the housing. The first bonding edge and the second bonding edge are fixed by gluing, and the connection between the edge of the first bonding edge and the housing is sealed with glue.

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