WO2018166070A1

WO2018166070A1 - Card holder ejector pin and electronic terminal

Info

Publication number: WO2018166070A1
Application number: PCT/CN2017/085974
Authority: WO
Inventors: 刘兆强; 王高辉
Original assignee: 华为技术有限公司
Priority date: 2017-03-17
Filing date: 2017-05-25
Publication date: 2018-09-20
Also published as: CN109076119B; CN109076119A

Abstract

The embodiment of the present application provides a card holder ejector pin and an electronic terminal, relating to the technical field of electronic terminals. A sealing ring can be prevented from being separated from the ejector pin, thus ensuring a waterproof effect and having low manufacturing cost. The card holder ejector pin is provided within a pinhole and comprises an ejector pin and a rubber sleeve fittedly sheathed on the ejector pin; the sealing ring is provided on an outer surface of the rubber sleeve; the sealing ring and the rubber sleeve are formed integrally; and the sealing ring is used for implementing an interference fitting with an inner wall of the pinhole. The present application is used for an electronic terminal.

Description

Cato thimble and electronic terminal

This application claims the priority of the Chinese Patent Application, filed on March 17, 2017, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present application relates to the field of electronic terminal technologies, and in particular, to a card ejector pin and an electronic terminal.

Background technique

With the development of electronic terminal technology, people have higher and higher requirements for electronic terminals (such as mobile phones, tablet computers, etc.), and the demand for waterproof performance of mobile phones is also increasing.

Most of the prior art mobile phones adopt a thimble type card holder. The card holder has a pinhole hole, and the lower end of the pinhole has a trigger end, and the pin is inserted into the pin hole to squeeze the trigger end to be used. Eject. Since the pinhole is connected to the inside of the mobile phone, water can easily enter the inside of the phone through the pinhole, damaging the components of the phone. In order to avoid the above problem, the prior art provides a sealing structure in the pinhole of the pinhole. The sealing structure comprises a metal thimble and a sealing ring disposed on the outer wall of the metal thimble. The sealing ring is in sealing contact with the inner wall of the pinhole hole, and the pinhole is sealed. Thereby playing a waterproof role. When the card is taken, the needle is inserted into the pinhole of the pin to squeeze the metal thimble, so that the metal thimble can be moved to the trigger end of the pinhole.

However, since the sealing ring of the above structure is directly disposed on the outer wall of the metal thimble, when the metal thimble moves within the boring pinhole, the sealing ring easily moves relative to the metal thimble, thereby being detached from each other, and the waterproofing is disabled.

Application content

The embodiment of the present application provides a card ejector pin and an electronic terminal, which can prevent the sealing ring from being detached from the thimble, thereby ensuring a waterproof effect and having low manufacturing cost.

To achieve the above objective, the embodiment of the present application adopts the following technical solutions:

The first aspect of the present application provides a card ejector pin disposed in the pinhole of the pinhole, including a thimble and a rubber sleeve sleeved on the thimble, the thimble being made of a hard material, the outer sleeve of the rubber sleeve The surface is provided with a sealing ring, and the sealing ring is integrally formed with the rubber sleeve, and the sealing ring is used for an interference fit with the inner wall of the pinhole.

The ejector pin provided by the embodiment of the present invention has a rubber sleeve on the outer wall of the thimble, and a sealing ring is formed on the outer wall of the rubber sleeve, and the contact length of the rubber sleeve and the thimble is long, so when the thimble moves in the boring pinhole, the thimble The rubber sleeve can be moved synchronously, and the rubber sleeve is not detached from the thimble, so that the position of the sealing ring does not change, the waterproof effect is ensured, and the reliability is strong. Moreover, since the thimble and the rubber sleeve are assembled by socketing, the manufacturing cost is low and the manufacturing process is simple, compared with the scheme of being integrated by the injection molding process.

In a first optional implementation manner of the first aspect, the rubber sleeve is open at one end and closed at the other end. a thimble is inserted into the rubber sleeve from the open end, and an outer surface of the closed end of the rubber sleeve is formed with a retaining ring, and the retaining ring is integrally formed with the rubber sleeve, and an outer diameter of the retaining ring is larger than the cymbal The inner diameter of the pinhole. Thereby, the end ring can prevent the thimble and the rubber sleeve from falling out of the pinhole hole, so that the mounting structure is more stable.

In a second alternative implementation of the first aspect, the seal ring is disposed adjacent the open end of the rubber sleeve. Thus, when the thimble moves into the mortise pinhole, the seal ring does not detach from the mortise pin hole.

In a third alternative implementation of the first aspect, the thimble and the inner wall of the rubber sleeve are secured by an adhesive material. Thereby, the fixing of the thimble and the rubber sleeve can be made more stable.

In a fourth optional implementation manner of the first aspect, the ejector pin includes a ejector pin and a thimble cap disposed at one end of the ejector pin, the ejector pin extending into the rubber sleeve, the thimble cap being adjacent to An end surface of one side of the ejector pin is engaged with an end surface of the rubber sleeve. The thimble cap is attached to the end surface of the open end of the rubber sleeve to prevent foreign matter from entering the inside of the rubber sleeve from the opening of the rubber sleeve.

In a fifth alternative implementation of the first aspect, the outer diameter of the thimble cap is equal to the outer diameter of the rubber sleeve. This prevents a step surface from being formed between the rubber sleeve and the thimble cap, preventing dust and foreign matter from accumulating on the step surface.

In a sixth alternative implementation of the first aspect, the length of the ejector pin is equal to the depth of the inner hole of the rubber sleeve. Thereby, the ejector pin can be completely filled with the inner hole of the rubber sleeve, thereby supporting the inner hole of the entire rubber sleeve to prevent local deformation or collapse of the rubber sleeve during the movement of the thimble, thereby hindering the movement.

In a seventh alternative implementation of the first aspect, the material of the rubber sleeve is thermoplastic polyurethane elastomer rubber or silica gel.

In an eighth alternative implementation of the first aspect, the material of the thimble is aluminum or stainless steel.

In a second aspect, an embodiment of the present application provides an electronic terminal, where the electronic terminal includes a casing, the casing is provided with a card slot, and the card slot is provided with a card tray and a card holder. The ejector mechanism is provided with a pinhole hole in the pin holder, and the pinhole hole provided in the first aspect is provided in the pinhole hole, and the sealing ring of the pin thimble is interspersed with the inner wall of the pinhole hole In cooperation, the inner end of the cap thimble abuts against the trigger rod of the capping mechanism.

The electronic terminal provided by the embodiment of the present invention can achieve the same technical effects as the first aspect of the present invention by including the card ejector pin of the first aspect, that is, the waterproof effect can be ensured, the reliability is high, and the manufacturing cost is low.

In a first alternative implementation of the second aspect, the outer surface of the inner end of the rubber sleeve of the ejector pin is formed with a retaining ring, and the retaining ring is located outside the mortise pin hole and the inner end surface of the mortise pin hole Reach. This prevents the pin ejector from falling out of the pinhole.

DRAWINGS

The drawings used in the examples or the description of the prior art are briefly described below.

1 is a schematic exploded view of a ejector pin provided by an embodiment of the present application;

2 is a schematic structural view of an assembly of a ejector pin provided by an embodiment of the present application;

3 is a schematic partial structural diagram of an electronic terminal according to an embodiment of the present application;

4 is a partial cross-sectional view of an electronic terminal according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

In the description of the present application, the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical" The orientation or positional relationship of the indications of "straight", "horizontal", "top", "bottom", "inner", "outside", etc. is based on the orientation or positional relationship shown in the drawings, only for convenience of description of the present application and simplification. The description, and not by way of limitation, is intended to be in the

In the description of the embodiments of the present application, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be, for example, a fixed connection or a The detachable connection, or the integral connection; the specific meaning of the above terms in the present application can be understood by a person of ordinary skill in the art.

The embodiment of the present application provides a ejector pin, which is disposed in the 捅 pin hole. As shown in FIG. 1 and FIG. 2 , the ejector pin includes a thimble 1 and a rubber sleeve 2 that is sleeved on the thimble 1 . The thimble 1 is made of a hard material, and the outer surface of the rubber sleeve 2 is provided with a sealing ring 3, and the sealing ring 3 is integrally formed with the rubber sleeve 2, and the sealing ring 3 is used for the cymbal The inner wall of the pinhole is interference fit.

The ejector pin provided in the embodiment of the present application has a rubber sleeve 2 on the outer wall of the thimble 1 and a sealing ring 3 on the outer wall of the rubber sleeve 2, and the contact length of the rubber sleeve 2 and the thimble 1 is long, so when the thimble 1 is in the 捅When moving in the pinhole, the thimble 1 can drive the rubber sleeve 2 to move synchronously, and the rubber sleeve 2 will not fall off from the thimble 1, so that the position of the sealing ring 3 does not change, the waterproof effect is ensured, and the reliability is strong. Moreover, since the thimble 1 and the rubber sleeve 2 are assembled by socketing, the manufacturing cost is low and the manufacturing process is simple, compared with the scheme of being integrated by the injection molding process.

The structure of the rubber sleeve 2 can be implemented in various ways. For example, the rubber sleeve 2 can be made into a tubular structure with open ends. Alternatively, as shown in FIG. 1 , the rubber sleeve 2 can be made to be open at one end and closed at the other end. In this case, the thimble 1 is inserted into the rubber sleeve 2 from the open end 21. In order to prevent the rubber sleeve 2 from falling out of the pinhole, a retaining ring 4 can be formed on the outer surface of the closed end 22 of the rubber sleeve 2, and the retaining ring 4 is integrally formed with the rubber sleeve 2, and the outer diameter of the retaining ring 4 is larger than the outer ring内径 The inner diameter of the pinhole. Therefore, the retaining ring 4 cannot enter the pinhole, thereby preventing the thimble 1 and the rubber sleeve 2 from falling out of the pinhole hole, so that the mounting structure is more stable.

The position of the sealing ring 3 can be at any position on the outer wall of the rubber sleeve 2, as shown in Fig. 1, the sealing ring 3 is disposed near the open end 21 of the rubber sleeve 2, when the ejector pin moves into the boring pinhole It can prevent the seal ring 3 from being separated from the pinhole.

In order to make the rubber sleeve 2 and the thimble 1 tightly assembled, the rubber sleeve 2 can be interference-fitted with the thimble 1. In addition, an adhesive material may be added between the inner wall of the rubber sleeve 2 and the outer wall of the thimble 1 to bond the rubber sleeve 2 with the thimble 1, thereby further increasing the stability of the connection between the rubber sleeve 2 and the thimble 1. The bonding material may be a liquid glue, a solid glue layer, a double-sided tape or the like.

In an embodiment of the present invention, as shown in FIG. 1, the thimble 1 includes a ejector pin 11 and a thimble cap 12 disposed at one end of the ejector pin 11, the ejector pin 11 extending into the rubber sleeve 2 The end surface of the thimble cap 12 on the side close to the ejector pin 11 is in contact with the end surface of the rubber sleeve 2. The ejector cap 12 is attached to the end surface of the open end 21 of the rubber sleeve 2 to prevent foreign matter from entering the inside of the rubber sleeve 2 from the opening of the rubber sleeve 2. In order to achieve the apex cap 12 and the end face of the open end 21 of the rubber sleeve 2, the length of the ejector pin 11 can be designed to be equal to or slightly smaller than the inner hole length of the rubber sleeve 2.

In the above embodiment, the outer diameter of the ejector cap 12 should be smaller than the outer diameter of the seal ring 3. Specifically, as shown in FIG. 2, the outer diameter of the thimble cap 12 can be made equal to the outer diameter of the rubber sleeve 2. Thereby, a stepped surface can be prevented between the rubber sleeve 2 and the thimble cap 12, and dust and foreign matter can be prevented from accumulating on the step surface.

In another embodiment of the invention, the thimble 1 may also include only a portion of the ejector pin 11. This makes the process easier.

Since the inside of the rubber sleeve 2 is empty, in order to prevent local deformation or collapse of the rubber sleeve 2 during the movement of the thimble 1, the length of the ejector rod 11 can be made equal to the inner diameter of the rubber sleeve 2. Thereby, the ejector pin 11 can be completely filled with the inner hole of the rubber sleeve 2, thereby supporting the inner hole of the entire rubber sleeve 2, preventing the rubber sleeve 2 from being locally deformed or collapsed during the movement of the thimble 1, thereby Movement is blocked.

Wherein, the material of the rubber sleeve 2 may be selected from thermoplastic polyurethane elastomer rubber or silica gel; the material of the thimble 1 is a hard material, the hardness of the hard material is high, and it is not easy to be deformed, and the rubber sleeve can be effectively supported to ensure the pin thimble. The stiffness. Specifically, the material of the thimble 1 may be metal or hard plastic or the like, for example, aluminum or stainless steel or the like may be selected.

The embodiment of the present application further provides an electronic terminal. As shown in FIG. 3 and FIG. 4 , the electronic terminal includes a casing 100. The casing is provided with a card circuit board 200, and the card board 200 is provided. There is a card holder (not shown) and a card ejector mechanism. The card ejector mechanism includes a triggering rod 201. The casing 100 is provided with a pinhole hole 101, and the pinhole hole 101 is provided therein. The ejector pin 300 of any of the above embodiments, the sealing ring 3 of the thimble pin 300 is interference-fitted with the inner wall of the boring pinhole 101, the inner end of the thimble pin 300 and the trigger The rod 201 abuts, and the pin 500 is inserted into the pinhole hole 101 to press the trigger bar 201 to eject the card holder.

The electronic terminal provided by the embodiment of the present invention can achieve the same technical effects of the above embodiments, that is, the waterproof effect can be ensured, the reliability is high, and the manufacturing cost is low, since the card ejector pin according to any of the above embodiments is included.

The electronic terminal provided in this embodiment may be an electronic device such as a mobile phone or a tablet computer, and is not limited herein.

In order to prevent the ejector pin from falling out of the pinhole hole, as shown in FIG. 4, the outer surface of the inner end of the rubber sleeve 2 of the ejector pin is formed with a retaining ring 4, and the retaining ring 4 is located outside the pinhole hole and is The inner end surface of the pinhole is abutted. Thus, when the ejector pin is subjected to the outward thrust of the trigger lever, the retaining ring 4 prevents the ejector pin from falling out of the pinhole.

Finally, it should be noted that the above embodiments are only used to explain the technical solutions of the present application, and are not limited thereto; although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced by the equivalents. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

A thimble pin is disposed in the 捅 pinhole, and includes a thimble and a rubber sleeve sleeved on the thimble, the thimble is made of a hard material, and the outer surface of the rubber sleeve is provided a sealing ring, the sealing ring being integrally formed with the rubber sleeve, the sealing ring being used for an interference fit with an inner wall of the pinhole.
The ejector pin according to claim 1, wherein the rubber sleeve is open at one end and closed at the other end, and the thimble is inserted into the rubber sleeve by the open end of the rubber sleeve, and the rubber sleeve is closed. The outer surface of the end is formed with a retaining ring, and the retaining ring is integrally formed with the rubber sleeve, and the outer diameter of the retaining ring is larger than the inner diameter of the pinhole.
The ejector pin according to claim 2, wherein said seal ring is disposed adjacent to an open end of said rubber sleeve.
The ejector pin according to any one of claims 1 to 3, wherein the thimble and the inner wall of the rubber sleeve are fixed by an adhesive material.
The ejector pin according to any one of claims 1 to 3, wherein the ejector pin comprises a ejector pin and a ejector cap disposed at one end of the ejector pin, the ejector pin extending into the rubber sleeve An end surface of the thimble cap on a side close to the ejector pin is engaged with an end surface of the rubber sleeve.
The ejector pin according to claim 5, wherein an outer diameter of the ejector cap is equal to an outer diameter of the rubber sleeve.
The ejector pin according to claim 5, wherein the length of the ejector pin is equal to the depth of the inner hole of the rubber sleeve.
The ejector pin according to any one of claims 1 to 3, wherein the material of the rubber sleeve is thermoplastic polyurethane elastomer rubber or silica gel.
An electronic terminal includes a casing, a casing circuit board is disposed in the casing, and the card tray is provided with a card tray and a card ejection mechanism, and the card tray ejecting mechanism includes a trigger rod. a thimble hole is disposed in the casing corresponding to the position of the trigger rod, and the thimble pin according to any one of claims 1 to 8 is provided in the shank hole, and the thimble of the thimble is sealed. An interference fit with the inner wall of the pinhole.
The electronic terminal according to claim 9, wherein the outer surface of the inner end of the rubber sleeve of the ejector pin is formed with a retaining ring, and the retaining ring of the thimble pin is located outside the pinhole hole and The inner end surface of the pinhole is abutted.