WO2020078133A1

WO2020078133A1 - Sealing member, electronic product, and sealing method for electronic product

Info

Publication number: WO2020078133A1
Application number: PCT/CN2019/104214
Authority: WO
Inventors: 王彦彬
Original assignee: 中兴通讯股份有限公司
Priority date: 2018-10-19
Filing date: 2019-09-03
Publication date: 2020-04-23
Also published as: CN111075926B; CN111075926A

Abstract

A sealing member, an electronic product, and a sealing method for an electronic product. The sealing member comprises a bode (1) made of an elastic material; the body (1) is further combined with a positioning part (2) made of a rigid material; the positioning part (2) is provided with a fastener (22); and the fastener (22) is used for fastening and positioning the sealing member to a part to be sealed.

Description

Seal, electronic product and sealing method of electronic product

Technical field

The present disclosure relates to, but not limited to, sealing technology, and in particular, to a sealing member, an electronic product, and a sealing method of an electronic product that can improve the sealing effect.

Background technique

In the prior art, seals such as sealing strips and seal rings are generally used to seal gaps between components, and elastic seal materials such as silicone and rubber are generally used for the seals. In order to ensure the sealing effect, pressure is applied to the seals between the components, so that the seals form an interference fit in the gap.

However, when sealing a gap with a relatively long length or a relatively large area, the seals at different positions may experience uneven force, which may cause the seals at some positions to shift, which may occur after the seals are deformed by compression The problem of inadequate sealing.

Although there are some solutions in the prior art, for example, a positioning groove is provided in the sealed member to facilitate the predetermined positioning of the sealing member. However, during the press-fitting process, the seal may still be unevenly stressed, causing the seal to partially come out, and the problem of seal failure may still occur.

Summary of the invention

In order to solve the above technical problems, the embodiments of the present disclosure provide a sealing member, an electronic product, and a sealing method of the electronic product.

In a first aspect, an embodiment of the present disclosure provides a seal including a main body made of an elastic material, the main body is further combined with a positioning portion made of a rigid material, the positioning portion is provided with a snap structure, The buckle structure is used for clamping and positioning the seal on the component to be sealed.

According to an embodiment of the present disclosure, the positioning portion is provided at a position where the extending direction of the main body changes.

According to an embodiment of the present disclosure, the positioning portion includes at least two buckles, and the two buckles are respectively located on opposite sides of the extending direction of the main body.

According to an embodiment of the present disclosure, the seal has at least one corner, and the positioning portion is provided at the corner.

According to an embodiment of the present disclosure, the positioning portion includes three of the buckles, one of the buckles is provided inside the corner, and two of the buckles are provided outside the corner.

According to an embodiment of the present disclosure, the corner is a rounded transition, and the two buckles outside the corner are respectively adjacent to the start and end of the rounded transition.

According to an embodiment of the present disclosure, the main body and the positioning portion are integrally formed by an encapsulation process, an insert injection molding process, or an in-mold injection process.

According to an embodiment of the present disclosure, the positioning portion includes a connecting piece and the buckle connected to the connecting piece, the main body includes a surface layer covering the front of the connecting piece, and / or covering the Connect the back layer on the back of the sheet.

According to an embodiment of the present disclosure, the seal is a seal ring, including a plurality of straight line segments and corners between the straight line segments.

In a second aspect, an embodiment of the present disclosure provides an electronic product equipped with the seal as described above.

According to an embodiment of the present disclosure, the electronic product includes a first casing and a second casing; the first casing is provided with a sealing groove matching the sealing member and a clamping structure corresponding to the snap .

In a third aspect, an embodiment of the present disclosure provides a method for sealing an electronic product, the electronic product includes a first housing and a second housing, the method includes the steps of: providing a sealing member incorporating a positioning portion , The positioning part includes a buckle; a sealing groove matching the sealing member and a clamping structure corresponding to the buckle are arranged on the first housing of the electronic product; the sealing member is installed on the The sealing groove, so that the buckle and the corresponding clamping structure are clamped and positioned; the second shell of the electronic product is combined with the first shell, and the second shell is pressed The seal is deformed to form an interference fit seal between the first housing and the second housing.

BRIEF DESCRIPTION

The drawings herein are incorporated into and constitute a part of this specification, show embodiments consistent with the present invention, and are used to explain the principles of the present invention together with the specification.

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, for those of ordinary skill in the art In other words, other drawings can be obtained based on these drawings without paying any creative labor.

1 is a schematic structural diagram of a seal provided by an embodiment of the present disclosure;

2 is a schematic structural diagram of a seal provided by an embodiment of the present disclosure;

3 is an enlarged schematic view of a structure at a corner of a seal provided by an embodiment of the present disclosure;

4 is an enlarged schematic view of a partial structure of a seal after assembly provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a seal after assembly according to an embodiment of the present disclosure.

Description of reference signs:

1. Main body; 11. Straight line; 12. Surface layer; 13. Back layer;

2. Positioning part; 21, connecting piece; 22, buckle;

3. The first shell; 31, the card slot; 32, the bump.

detailed description

To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be described clearly and completely in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments It is a part of the embodiments of the present disclosure, but not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present disclosure.

FIG. 1 is a schematic structural view of a seal provided by an embodiment of the present disclosure, and FIG. 2 is a structural schematic view of a seal provided by an embodiment of the present disclosure. Referring to FIGS. 1 and 2, a seal provided by an embodiment of the present disclosure mainly includes a main body 1 made of an elastic material. The main body 1 further incorporates a positioning portion 2 made of a rigid material. The positioning portion 2 is provided with The buckle 22 is used for positioning the sealing member on the component to be sealed.

According to an embodiment of the present disclosure, since the body 1 of the elastic sealing material of the seal is further combined with a positioning portion 2 of a rigid material, and the positioning portion 2 is provided with a snap structure capable of quick snap positioning, it can be used with respect to the elastic seal Parts with greater hardness provide a positioning effect. In addition, according to the embodiments of the present disclosure, it can be ensured that the sealing member can be effectively positioned in the state of pre-assembly, press-fitting, etc., thereby improving the sealing effect.

According to an embodiment of the present disclosure, the shape of the sealing member may be a sealing strip or a sealing ring. In addition to O-shaped seals, they can also be triangular, rectangular, D-shaped, T-shaped, square-shaped, heart-shaped, X-shaped, pentagonal or olive-shaped.

The elastic material referred to herein is an elastic body that can be adaptively deformed to seal. It can be understood that the selectable range of the elastic material may include nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR), acrylate rubber (ACM), silicone rubber (VMQ), fluorine rubber (FKM), ethylene-propylene Elastic materials such as rubber (EPDM), styrene-butadiene rubber (SBR), polytetrafluoroethylene (PTFE) and blends.

The rigid material referred to herein refers to a material having greater hardness than an elastic material. The selection of rigid materials includes various metals, plastics or similar structural materials. Plastics can optionally include polycarbonate (PC), polyacrylonitrile (ABS) or engineering plastic alloys (PC + ABS). It should be understood that the rigid material used in the embodiments of the present disclosure should also have a certain elasticity, so as to achieve elastic deformation during the snapping action.

According to an embodiment of the present disclosure, the buckle structure is used for quick snap positioning of the seal. It can be understood that the so-called snap structure includes various snap forms that can be quickly snapped on. The buckle structure referred to here may be a hook or a groove, as long as it can cooperate with the corresponding structure to achieve quick snapping.

According to an embodiment of the present disclosure, the positioning portion 2 is optionally provided at a position on the seal where displacement is likely to occur. For example, a position where the extending direction of the seal body 1 changes is a position where displacement is likely to occur. The position where the direction of extension of the seal body 1 changes refers to the position of the corner where the direction of extension of the seal body 1 changes to produce a certain angle, or the position where the outer shape of the seal body 1 changes, where the change in the outer shape may be that the shape becomes larger or small.

According to an embodiment of the present disclosure, FIG. 3 is an enlarged schematic view of a structure at a corner of a seal provided by an embodiment of the present disclosure. As shown in FIGS. 1 to 3, the seal may be a rectangular seal ring, and the main body 1 of the seal is selected to have a circular cross-section. The main body 1 mainly includes four straight segments 11 and the corners between the straight segments 11, the corners are selected Transition for rounded corners. In the embodiment of the present disclosure, it is selected to provide the positioning portion 2 at the corner. It can be understood that, in some embodiments, the rectangular sealing ring may be adapted to, for example, a rectangular housing of a mobile phone or tablet computer to provide a seal for the mobile phone or tablet computer. At this time, the mobile phone or tablet computer can become a part to be sealed.

In some embodiments, the specific structure of the positioning portion 2 may optionally be provided with at least two buckles 22, and the two buckles 22 may be located on opposite sides of the main body 1 in the extending direction. In order to fix and fix the seal body 1 from both sides. The two buckles 22 can be arranged oppositely so as to provide a positioning effect in opposite directions.

For the case where the corner shown in FIG. 3 is a rounded corner transition, the positioning portion 2 may be provided with three buckles 22, one buckle 22 is provided inside the corner, and two buckles 22 are provided outside the corner. The two buckles 22 on the outside of the corner are respectively adjacent to the starting point and the ending point of the rounded corner transition. Since the buckles 22 are provided at three places, not only the positioning is provided on the inner side and the outer side, but also the starting point and the end point where displacement is likely to occur. In this way, a stable fixing effect can be provided for the corner.

As shown in FIG. 3, the positioning part 2 mainly includes a connecting piece 21 and a buckle 22 connected to the connecting piece 21, and the optional shape of the connecting piece 21 is a scalloped fan shape, so that a plurality of buckles 22 are arranged at intervals at corners . On the connection sheet 21, the main body 1 includes a surface layer 12 covering the front of the connection sheet 21, and / or a back layer 13 covering the back of the connection sheet 21, and the surface layer 12 or the back layer can be selected according to the corresponding sealing requirements. Or both. At the same time, the extended shape of the main body 1 can also be formed on the surface layer 12 and the back layer 13 in order to achieve full sealing.

In the embodiment of the above structure, the main body 1 may be made of elastic silicone material, and the positioning portion 2 may be hard glue. The main body 1 and the positioning portion 2 are optionally integrally formed by a encapsulation process, an insert injection molding process or an in-mold injection process. In this way, the positioning portion 2 becomes an integral fitting member of the main body 1, and the snap fixing of the positioning portion 2 can facilitate positioning of the seal body 1.

On the other hand, an embodiment of the present disclosure provides an electronic product equipped with a sealing member adopting a solution as described in the previous embodiment. The electronic product may be various devices such as mobile phones, tablet computers and the like that need to be sealed by the casing, or mobile terminal product devices such as smart phones and other electronic products that currently require high waterproof performance.

4 is an enlarged schematic view of a partial structure of a seal after assembly provided by an embodiment of the present disclosure; and, FIG. 5 is a schematic view of a structure of a seal provided by an embodiment of the present disclosure after assembly.

As shown in FIGS. 4 and 5, such an electronic product may include a first housing 3 provided with a sealing groove matching a sealing member. The sealing groove may partially accommodate the sealing body 1, the first The housing 3 is provided with a clamping structure corresponding to the buckle 22. The clamping structure may include a clamping slot 31, and a protrusion 32 that fits the buckle 22 is also arranged inside the clamping slot 31. In this way, after the buckle 22 extends into the groove 31, the hook at the front end of the buckle 22 can be snapped and fixed on the protrusion 32 to complete the predetermined position of the seal.

The sealing method for electronic products can mainly include the following steps:

Provide a seal incorporating the positioning portion 2, the positioning portion 2 includes a buckle 22;

The sealing groove of the matching seal and the snap-fit structure of the matching buckle 22 are arranged on the first housing of the electronic product;

Install the sealing member in the sealing groove, so that the buckle 22 and the corresponding clamping structure are clamped and positioned;

The second housing of the electronic product is combined with the first housing 3, and the second housing squeezes the sealing member to deform, thereby forming an interference fit seal between the first housing and the second housing. This operation step may specifically be to cover the second casing of the electronic product, and lock the fixing screw between the two casings, thereby squeezing the seal to deform to form a seal.

In the above steps, it should be understood that the seal 22 should be pre-positioned with the buckle 22 before the interference fit is achieved. The previous step of providing a seal incorporating the positioning portion 2 and the step of arranging the first housing can be carried out simultaneously, or the order can be interchanged.

In this embodiment of the sealing method, the sealing member may use the sealing member provided in the previous embodiment.

With the technical solutions of the embodiments of the present disclosure, since the sealing member can be pre-positioned at a discontinuously extending portion such as a turning portion, the sealing member can be prevented from shifting, thereby improving the overall waterproof performance.

It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these There is any such actual relationship or order between entities or operations. Moreover, the terms "include", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also those not explicitly listed Or other elements that are inherent to this process, method, article, or equipment. Without further restrictions, the element defined by the sentence "include one ..." does not exclude that there are other identical elements in the process, method, article or equipment that includes the element.

The above are only specific embodiments of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

A sealing member includes a main body made of an elastic material, wherein the main body is further combined with a positioning part made of a rigid material, the positioning part is provided with a snap structure, and the snap structure is used to The seal is clamped and positioned on the part to be sealed.
The seal according to claim 1, wherein the positioning portion is provided at a position where the extension direction of the main body changes.
The seal according to claim 1, wherein the positioning portion includes at least two buckles, and the two buckles are respectively located on opposite sides of the extending direction of the main body.
The seal according to claim 1, wherein the seal has at least one corner, and the positioning portion is provided at the corner.
The seal according to claim 4, wherein the positioning portion includes three of the buckles, one of the buckles is provided inside the corner, and two of the buckles are provided outside the corner.
The seal according to claim 5, wherein the corner is a rounded transition, and the two buckles outside the corner are respectively adjacent to the start and end of the rounded transition.
The seal according to claim 1, wherein the main body and the positioning portion are integrally formed by an overmolding process, an insert injection molding process, or an in-mold injection process.
The seal according to claim 1, wherein the positioning portion includes a connecting piece and the buckle connected to the connecting piece, and the main body includes a surface layer covering the front surface of the connecting piece, and / or A back layer covering the back of the connecting sheet.
The seal according to any one of claims 1 to 8, wherein the seal is a seal ring and includes a plurality of straight line segments and corners between the straight line segments.
An electronic product equipped with the sealing member according to any one of claims 1 to 9.
The electronic product according to claim 10, wherein the electronic product includes a first housing and a second housing; the first housing is provided with a sealing groove matching the sealing member and corresponding to the buckle Card connection structure.
An electronic product sealing method, the electronic product includes a first shell and a second shell, the method includes the steps of:

Provide a seal incorporating a positioning portion, the positioning portion including a buckle;

A sealing groove matching the sealing member and a clamping structure corresponding to the buckle are arranged on the first casing of the electronic product;

Installing the sealing member in the sealing groove, so that the buckle and the corresponding clamping structure are clamped and positioned;

The second housing of the electronic product is combined with the first housing, and the second housing is pressed against the seal to produce deformation, forming the first housing and the second housing. An interference fit seal between the housings.