CN211531567U - Sealing structure for screw connection and electronic equipment - Google Patents

Abstract

The application provides a seal structure and electronic equipment for screw connection's seal structure includes preceding shell, backshell and installs preceding shell with circuit board between the backshell, be provided with the first screw post that is used for the mounting screw on the preceding shell, be provided with the second screw post that is used for the mounting screw on the backshell, first screw post with the cover is equipped with first sealing member on the terminal surface of second screw post contact, the second screw post with the cover is equipped with the second sealing member on the terminal surface of first screw post contact. The electronic device employs the aforementioned sealing structure for screw connection.

Description

Sealing structure for screw connection and electronic equipment

Technical Field

The present application relates to, but is not limited to, the field of waterproof sealing for electronic devices, and in particular, to a sealing structure for screw connection and an electronic device.

Background

The electronic equipment has various types, such as a PDA (personal digital assistant), an interphone, a handheld navigation device, a handheld POS machine and the like, the working environment is various, under the outdoor environment, rainwater, dust and the like are one of key factors influencing the operation of the equipment, and the electronic equipment with dustproof and waterproof performance can well meet the outdoor environment requirement.

For electronic devices in which front and rear housings are fixed by screws, a plurality of screw mounting grooves are generally provided in the rear housing (or other housings, such as the rear housing), screws are placed in the screw mounting grooves, and the rear housing and the front housing are locked by the screws. The water inlet at the screw position of the equipment is one of the problems which must be solved by the equipment, and for the water inlet at the screw position of the electronic equipment, the conventional methods at present are several, wherein one method is to add a layer of soft material (such as a silicone rubber pad) at the contact position of the stress surface (namely the lower end surface of a screw cap) of the screw and the rear shell, and adopt an interference compression method to realize the waterproof sealing of the screw and the rear shell, so as to prevent water from directly permeating into the equipment. The waterproof sealing method is characterized in that a screw sealing cover made of elastic materials is arranged on a screw, and sealing is achieved through extrusion of the side face of the screw cover and the inner wall of a screw mounting groove.

SUMMERY OF THE UTILITY MODEL

The application provides a seal structure and electronic equipment for screw connection, and the waterproof problem of screw junction can effectively be solved to seal structure, and electronic equipment has good water-proof effects.

The application provides a seal structure for screw connection, include preceding shell, backshell and install preceding shell with circuit board between the backshell, be provided with the first screw post that is used for the mounting screw on the preceding shell, be provided with the second screw post that is used for the mounting screw on the backshell, first screw post with the cover is equipped with first sealing member on the terminal surface of second screw post contact, the second screw post with the cover is equipped with the second sealing member on the terminal surface of first screw post contact.

The application also provides an electronic device which adopts the sealing structure for screw connection.

Compared with the prior art, the method has the following beneficial effects:

the application provides a seal structure for screw connection, with the sealing member setting inside electronic equipment, avoid causing the damage to the sealing member when screwing up the screw, simultaneously, can seal screw installation department well again, improve sealing performance, prevent inside impurities such as water or dust get into electronic equipment, prolonged electronic equipment's life greatly. In addition, the sealing structure for screw connection provided by the application is relatively simple, the working reliability is high, and the practicability of the sealing structure is greatly improved. The sealing structure has low processing precision and assembly requirements, thereby reducing the production and use cost of the sealing structure.

The application provides an electronic equipment adopts above-mentioned seal structure, has good sealing performance, can effectively prevent impurity such as water or dust and get into electronic equipment inside, has prolonged electronic equipment's life greatly.

Other features and advantages of the present application will be set forth in the description that follows.

Drawings

The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.

FIG. 1 is a first schematic view of a sealing structure for screw connection according to an embodiment of the present disclosure;

FIG. 2 is a second schematic view of a sealing structure for screw connection according to an embodiment of the present disclosure;

fig. 3 is a schematic cross-sectional view of a sealing structure for screw connection according to an embodiment of the present application.

Illustration of the drawings:

1-front shell, 11-first screw stud, 12-first seal, 2-back shell, 21-second screw stud, 22-second seal, 3-circuit board, 4-gasket, 5-screw.

Detailed Description

To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The embodiment of the application provides a seal structure for screw connection, as shown in fig. 1 to 3, including preceding shell 1, backshell 2 and circuit board 3 of installation between preceding shell 1 and backshell 2, be provided with the first screw post 11 that is used for mounting screw 5 on the preceding shell 1, be provided with the second screw post 21 that is used for mounting screw 5 on the backshell 2, the cover is equipped with first sealing member 12 on the terminal surface of first screw post 11 and the contact of second screw post 21, the cover is equipped with second sealing member 22 on the terminal surface of second screw post 21 and the contact of first screw post 11.

The first sealing element 12 is sleeved on the end surface of the first screw post 11, and wraps the end portion of the first screw post 11 and a part of cylindrical surface connected with the end portion. The first sealing member 12 is in close contact with the end face of the first screw post 11, so that sealing is achieved. The first sealing element 12 is in interference fit with (the cylindrical surface of) the first screw post 11, so that the first sealing element 12 is in close contact with the cylindrical surface of the first screw post 11 to realize sealing, and transition fit and clearance fit can be selected at the position of the first sealing element and the cylindrical surface of the first screw post 11, and the first sealing element and the cylindrical surface can be selected according to actual conditions. The second sealing element 22 is sleeved on the end surface of the second screw post 21, and wraps the end portion of the second screw post 21 and a part of the cylindrical surface connected with the end portion. The second sealing member 22 is in close contact with the end face of the second screw post 21, thereby achieving sealing. The interference fit is adopted between the second sealing element 22 and the (cylindrical surface of the) second screw column 21, so that the second sealing element 22 is in close contact with the cylindrical surface of the second screw column 21 to realize sealing, and transition fit and clearance fit can be selected according to actual conditions. The material of the first sealing member 12 and the second sealing member 22 may be rubber, but other soft or elastic materials may be used besides rubber, such as: asbestos, and the like.

The utility model provides a seal structure for screw connection, can effectively solve the electronic equipment that current has waterproof sealing to require near screw 5 sealed unreliable, water passes through inside 5 departments of the screw entering equipment of equipment, and then influence the problem of the inside electronic component device performance of electronic equipment. The structure is simple, the performance is reliable, and the cost is low.

In an exemplary embodiment, the first sealing member 12 is "U" shaped, and the bottom end of the first sealing member 12 is provided with a first through hole (not shown).

First sealing member 12 is "U" type, and the bottom is provided with first through-hole, and first through-hole is used for screw 5 to pass, and the diameter of first through-hole can slightly be lighter than 5 diameters of screw to guarantee that the through-hole of first sealing member 12 closely cooperates with 5 contact departments of screw, improve sealed waterproof performance.

In an exemplary embodiment, the second sealing member 22 is "U" shaped, and the bottom end is provided with a second through hole (not shown in the figure) for the screw 5 to pass through, and the diameter of the second through hole may be slightly smaller than the diameter of the screw 5, so as to ensure that the through hole of the second sealing member 22 is tightly fitted with the contact position of the screw 5, thereby improving the sealing and waterproof performance.

In addition, as shown in fig. 3, the second sealing element 22 may also be in a "bow" shape, and the end of the screw 5 extends into the groove in the middle of the second sealing element 22, so that the structure can improve the sealing effect of the tail part of the screw 5, and further improve the sealing effect of the screw connection part.

In an exemplary embodiment, a metal gasket 4 is disposed between the contact surfaces of the screw 5 and the rear case 2, and the metal gasket 4 may be various, for example: a copper pad 4.

In the sealing structure circuit board 3 of this embodiment, the middle position is provided with electronic component and circuit (need waterproof and dustproof), and when assembling, the screw 5 firstly passes through the metal gasket 4, and then passes through the first screw post 11 of the front shell 1, the first sealing member 12, the circuit board 3, the second sealing member 22, and the second screw post 21 of the rear shell 2, so as to prevent water from entering the inside of the shell, thereby playing a waterproof and sealing effect.

The electronic equipment that this embodiment provided adopts above-mentioned a seal structure for screw connection, has good sealing performance, can effectively prevent inside impurities such as water or dust get into electronic equipment, has prolonged this electronic equipment's life greatly.

In the description of the present application, it should be noted that the term "plurality" means two or more, and the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", and the like are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the structures referred to have a specific direction, are configured and operated in a specific direction, and thus, cannot be construed as limiting the present application.

In the description of the embodiments of the present application, unless expressly stated or limited otherwise, the terms "connected," "mounted," and "installed" are to be construed broadly, e.g., the term "connected" may be a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The embodiments described herein are exemplary rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or instead of any other feature or element in any other embodiment, unless expressly limited otherwise.

The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements that have been disclosed in this application may also be combined with any conventional features or elements to form unique aspects as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other aspects to form another unique aspect as defined by the claims. Thus, it should be understood that any of the features shown and/or discussed in this application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not limited except as by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.

Claims (10)

1. The utility model provides a seal structure for screwed connection, includes preceding shell, backshell and installs preceding shell with circuit board between the backshell, be provided with the first screw post that is used for the mounting screw on the preceding shell, be provided with the second screw post that is used for the mounting screw on the backshell, a serial communication port, first screw post with the cover is equipped with first sealing member on the terminal surface of second screw post contact, the second screw post with the cover is equipped with the second sealing member on the terminal surface of first screw post contact.

2. The seal structure for screw connection according to claim 1, wherein the first seal member is "U" shaped, and a bottom end of the first seal member is provided with a first through hole.

3. The seal structure for screw connection according to claim 2, wherein there is an interference fit between the first seal and the first screw stud.

4. The seal structure for screw connection according to claim 1, wherein the second seal member is "U" shaped, and a bottom end of the second seal member is provided with a second through hole.

5. The seal structure for screw connection according to claim 1, wherein said second seal member is "bow" shaped with screw ends extending into a groove in the middle of said second seal member.

6. The seal structure for screw connection according to any one of claims 4 or 5, wherein there is an interference fit between the second seal and the second screw stud.

7. The seal structure for screw connection according to claim 6, wherein a gasket is provided between the contact surfaces of the screw and the rear case.

8. The seal structure for screw connection according to claim 7, wherein the gasket is a metal gasket.

9. The seal structure for screw connection according to any one of claims 1 to 5, wherein a material of the first seal and the second seal is rubber.

10. An electronic apparatus, characterized in that the sealing structure for screw connection according to any one of claims 1 to 9 is employed.

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