CN112908759B

CN112908759B - Electronic device

Info

Publication number: CN112908759B
Application number: CN202110057638.9A
Authority: CN
Inventors: 陈杰; 毛旭军
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2022-12-23
Anticipated expiration: 2041-01-15
Also published as: CN112908759A

Abstract

The application discloses electronic equipment belongs to the technical field of communication. The electronic equipment comprises a key contact, a key main body, a key boss arranged on the key main body and a PEI boss fixedly sleeved outside the key boss; the key boss comprises a cylindrical boss, and the cylindrical boss is exposed out of the surface of one side, far away from the key main body, of the PEI boss; the key boss is arranged opposite to the key contact, and the electronic equipment can execute corresponding operation through the contact and separation of the cylindrical boss of the key boss and the key contact. In the embodiment of the application, the PEI boss is sleeved outside the key boss, so that the PEI boss and the key boss have good organic corrosion resistance, and the deformation of the PEI boss and the key boss can be reduced when the PEI boss and the key boss bear impact force, thereby ensuring the pressing hand feeling and prolonging the service life of the key.

Description

Electronic device

Technical Field

The application belongs to the technical field of communication, and particularly relates to an electronic device.

Background

At present, in order to realize display in a larger area, a wider viewing angle and a higher holding and attaching degree, a curved screen is more and more widely applied to mobile phone products. However, the curved screen has a large radian, which is very unfavorable for sticking a protective film. In order to make the protective film adhere to the curved surface more easily, the existing curved surface screen protective film is mostly adhered by using UV glue curing. In the using process, the UV glue (ultraviolet light curing glue) can enter the interior of the mobile phone along the gap between the upper cover of the mainboard and the side keys.

The TPU (thermoplastic polyurethane elastomer rubber) has strong elasticity, can deform greatly, can effectively tolerate the assembly tolerance of structural parts, can not generate plastic deformation after being impacted, can ensure that the hand feeling of the key is not weakened due to falling impact, and is used as a super-elastic material, and the key boss is widely made of TPU materials. However, UV glue and many other organic solvents can corrode TPU, which leads to a sharp increase in the failure rate of keys of a mobile phone with a curved screen. How to solve the problem that the UV glue and other organic solvents are urgently needed to solve when the curved-surface screen protection film is pasted.

In addition, because the button is higher than the side face of the whole mobile phone, when the side face where the button of the mobile phone is located is impacted, the impact force of the whole mobile phone can directly act on the side button, the force borne by the side button is directly transmitted to the button boss and the metal dome, so that the button boss is deformed, if the button boss is deformed irreversibly, the button boss is separated from the metal dome, so that the pressing hand feeling is weakened, and the reaction is not sensitive enough.

Disclosure of Invention

The embodiment of the application aims to provide electronic equipment, which can solve the problems that in the prior art, a key boss is easily corroded to cause key failure, and when the key boss is impacted, unrecoverable deformation is easily generated to cause insensitive pressing.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides an electronic device, which includes a key contact, a key main body, a key boss disposed on the key main body, and a PEI boss fixedly sleeved outside the key boss; the key boss comprises a cylindrical boss, and the cylindrical boss is exposed out of the surface of one side, far away from the key main body, of the PEI boss; the key boss and the key contact are arranged oppositely, and the electronic equipment can execute corresponding operation through the contact and separation of the cylindrical boss of the key boss and the key contact.

Optionally, the PEI boss includes first portion and second portion that the organic whole set up, the second portion is located keeping away from of first portion one side of button main part, the inside of first portion with the second portion forms jointly and is used for holding the cavity of button boss, two relative lateral walls of second portion are all inwards sunken.

Optionally, the key boss further comprises a base body, the base body comprises a first base body and a second base body which are sequentially arranged on the key main body, the first base body and the second base body are both in a cuboid shape, the width of the second base body is larger than that of the first base body so as to form a first step, the length of the second base body is smaller than that of the first base body so as to form a second step, and the PEI boss is limited on the axis of the cylindrical boss by the first step and the second step.

Optionally, the centers of the first and second substrates are located on the axis of the cylindrical boss.

Optionally, the first base body, the second base body and the cylindrical boss are of an integral structure.

Optionally, the key boss is made of an aluminum alloy material.

Optionally, the PEI boss is formed outside the key boss by an in-mold injection molding process.

Optionally, the key main body includes a main body portion and a protrusion, the protrusion is disposed in a middle region of the main body portion, and the key boss is disposed on a side surface of the protrusion far away from the main body portion.

Optionally, the key body further includes two fastening portions, the fastening portions are disposed on two sides of the protruding portion, and the fastening portions are used for being fixedly connected with a housing of the electronic device.

Optionally, the electronic device further includes a motherboard, the key contact is connected to the motherboard, and the key contact is a dome key.

In the embodiment of the application, the PEI boss is sleeved outside the key boss, the PEI boss and the key boss both have good organic corrosion resistance, and the deformation of the PEI boss and the deformation of the key boss can be reduced when the PEI boss and the key boss bear impact force, so that the pressing hand feeling is ensured, and the service life of the key is prolonged.

Drawings

FIG. 1 is a schematic diagram of a position relationship between a key boss and a snap dome in the prior art;

FIG. 2 is a schematic diagram of a position relationship between a button and a curved screen in the prior art;

fig. 3 is a schematic view of a key structure of an electronic device according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a key boss provided in the embodiment of the present application;

FIG. 5 is a top view of a key boss provided in an embodiment of the present application;

FIG. 6 is a cross-sectional view of a key structure according to an embodiment of the present disclosure;

fig. 7 is a second cross-sectional view of a key structure provided in an embodiment of the present application;

FIG. 8 is a top view of a PEI boss provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application are capable of operation in sequences other than those illustrated or described herein, and that the terms "first," "second," etc. are generally used in a generic sense and do not limit the number of terms, e.g., a first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The electronic device provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 1 and 2, fig. 1 is a schematic diagram illustrating a position relationship between a boss of a key and a dome of a dome sheet in the prior art, and fig. 2 is a schematic diagram illustrating a position relationship between a key and a curved screen in the prior art. As shown in fig. 1 and 2, the snap dome 11 is disposed on the main board, the main board upper cover 12 covers the main board, the key boss 13 on the key 14 is disposed opposite to the snap dome 11, and the key boss 13 is made of TPU. Because the button 14 is higher than the side surface of the whole mobile phone, when the side surface of the mobile phone where the button 14 is located is impacted, the impact force of the whole mobile phone can directly act on the button 14, and the force borne by the button 14 is directly transmitted to the button boss 13 and the dome sheet 11, so that the button boss 13 is deformed. If the key boss 13 is deformed irreversibly, the key boss 13 and the snap dome 14 will be separated from contact, so that the hand feeling is weakened, and in severe cases, the key function may even fail. As shown in fig. 2, when the mobile phone uses the curved screen 15, the main board upper cover 12 and the curved screen 15 are in smooth transition, but in order to press down the keys 14, the keys 14 are higher than the curved screen at the side surface, inevitably, a gap 16 exists between the main board upper cover 12 and the keys 14, when the protective film is coated by UV glue, the UV glue flows onto the keys 14 along the curved surface of the curved screen 15 and the side surface of the main board upper cover 12 and is blocked by the keys, and enters the inside along the contour of the keys 14, finally, the key bosses 13 are corroded, and the key failure rate is obviously improved.

Therefore, please refer to fig. 3 to 7, fig. 3 is a schematic diagram of a key structure of an electronic device according to an embodiment of the present application, fig. 4 is a schematic diagram of a key boss according to an embodiment of the present application, fig. 5 is a top view of the key boss according to the embodiment of the present application, fig. 6 is one of cross-sectional views of the key structure according to the embodiment of the present application, and fig. 7 is a second of the cross-sectional views of the key structure according to the embodiment of the present application. As shown in fig. 3 to 7, an embodiment of the present application provides an electronic device, which includes a key contact (not shown), a key main body 31, a key pad 32, and a PEI pad 33; the key boss 32 is fixedly arranged on the key main body 31, and the PEI boss 33 is fixedly sleeved outside the key boss 32; the key boss 32 comprises a cylindrical boss 323, the cylindrical boss 323 exposes a surface of one side of the PEI boss 33, which is far away from the key main body 31, that is, a surface of one side of the cylindrical boss 323, which is far away from the key main body 31, is flush with a surface of one side of the PEI boss 33, which is far away from the key main body 31; the key boss 32 is disposed opposite to the key contact, and the cylindrical boss 323 of the key boss 32 is in contact with and separated from the key contact, so that the electronic device executes corresponding operations, that is, when the key body 31 is pressed, the key boss 32 fixed on the key body 31 moves towards the key contact, so that the key boss 32 contacts with the key contact, and when the pressing force applied to the key body 31 is removed, the key boss 32 fixed on the key body 31 is away from the key contact, so that the key boss 32 is separated from the key contact.

In the embodiment of the application, the PEI boss 33 is made of PEI (polyetherimide) material as the name suggests, so that the PEI boss 33 can not be corroded and dissolved by UV glue and most of organic solvents, and the failure rate of the key can be effectively reduced.

In some embodiments of the application, the key boss 32 is made of an aluminum alloy, the key boss 32 made of the aluminum alloy can be prevented from being corroded by organic solvents such as UV glue and the like, and the strength is high, because the PEI boss 33 is sleeved outside the key boss 32, although the resilience of the PEI boss 33 is poor, when the key main body 31 is impacted by external force, the key boss 32 made of the aluminum alloy can bear most of force, so that the plastic deformation of the PEI boss 33 is reduced, and the hand feeling of the key is ensured, and because only the cylindrical boss 323 of the key boss 32 can be contacted with the key contact, the contact surface is a plane and has a small area, and when the key main body 31 is impacted by external force, the PEI boss 33 can be contacted with the key contact, and the PEI boss 33 is made of a soft material, and can play a certain buffering role, and cannot damage the key contact; therefore, the key boss 32 and the PEI boss 33 supplement each other, so that the key has good organic corrosion resistance, and the deformation of the PEI boss and the key boss can be reduced when the impact force is borne, thereby ensuring the pressing hand feeling and prolonging the service life of the key.

Please refer to fig. 8, which is a top view of a PEI boss according to an embodiment of the present application. As shown in fig. 6 to 8, the PEI boss 33 includes a first portion 331 and a second portion 332, the first portion 331 and the second portion 332 are integrally disposed, the first portion 331 is fixedly disposed on the key main body 31, the second portion 332 is located on a side of the first portion 331 away from the key main body 31, a cavity for accommodating the key boss 32 is formed in the first portion 331 and the second portion 332, and an inner wall surface of the PEI boss 33 is tightly attached to a side surface of the key boss 32. Wherein, two relative lateral walls 3321 of second portion 332 are all inwards sunken, form the anti-compensation shape of crescent, and the impact force that receives at PEI boss 33 is too big, and button boss 32 is impaired back, and two lateral walls 3321 can compensate PEI boss 33's deformation, ensure that it can not take place too big deformation and lead to the button card dead to the life of button has been prolonged. In some alternative embodiments, the first portion 331 may have an elliptical cylinder shape and the second portion may have a rectangular parallelepiped shape.

In some embodiments of the present application, the key boss 32 further includes a base, the base includes a first base 321 and a second base 322 sequentially disposed on the key main body 31, that is, the first base 321 is fixedly disposed on the key main body 31, the second base 322 is fixedly disposed on one side of the first base 321 away from the key main body 31, the cylindrical boss 323 is disposed on one side of the second base 322 away from the first base 321, and both the first base 321 and the second base 322 are in a rectangular shape. The width of the second base body 322 is greater than that of the first base body 321 to form a first step, the length of the second base body 322 is less than that of the first base body 321 to form a second step, and the first step and the second step are used for limiting the PEI boss 33 on the axis of the cylindrical boss 323, that is, the first step can limit the PEI boss 33 to move towards the key main body 31, and the second step can limit the PEI boss 33 to move towards the direction far away from the key main body 31, so that the key boss 32 and the PEI boss 33 sleeved outside the key boss are kept at the same relative position, the cylindrical boss 323 is ensured to be always exposed out of the surface of the PEI boss 33 far away from the key main body 31, so that the cylindrical boss 323 is contacted with the key contact, and the cylindrical boss 323 and the key contact are greatly damaged due to the lack of the buffering effect of the PEI boss 33.

In some embodiments of the present application, the centers of the first base 321 and the second base 322 are located on the axis of the cylindrical boss 323, so as to ensure that the key body 31 can directly contact the key boss 32 with the key contact by external force, avoid torque deviation and cause poor hand feeling of the key, and ensure the life of the key.

In other embodiments of the present application, the first base 321, the second base 322, and the cylindrical boss 323 are an integrated structure, and may be specifically an integrally formed aluminum alloy structural member, which facilitates mass production and manufacturing.

In some embodiments of the present application, the PEI boss 33 is formed outside the key boss 32 through an in-mold injection molding process, and the in-mold injection molding process can enable the PEI boss 33 and the key boss 32 to be tightly attached to each other, so as to ensure that the relative positions of the PEI boss and the key boss are fixed.

As shown in fig. 3, in some embodiments of the present application, the key main body 31 includes a main body 311 and a protrusion 312, the protrusion 312 is disposed in a middle region of the main body 311, the key boss 32 is disposed on a side surface of the protrusion 312 away from the main body 311, and the protrusion 312 may shorten a distance between the key boss 32 and the key contact to reduce a thickness of the key boss 32.

In other embodiments of the present application, the key main body 31 further includes two latching portions 313, the latching portions 313 are disposed on two sides of the protruding portion 312 and are also fixedly disposed on the main body portion 311, for example, the main body portion 311 is long, the latching portions 313 can be disposed on two ends of the main body portion 311, and the latching portions 313 are used for being fixedly connected to a housing of the electronic device.

In the embodiment of the application, the electronic device further comprises a mainboard, the key contact is connected with the mainboard, and the key contact is specifically a dome button, so that the electronic device has better hand feeling and longer service life.

In the embodiment of the application, the PEI boss is sleeved outside the key boss, so that the PEI boss and the key boss have good organic corrosion resistance, and the deformation of the PEI boss and the key boss can be reduced when the PEI boss and the key boss bear impact force, thereby ensuring the pressing hand feeling and prolonging the service life of the key.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.

Claims

1. An electronic device is characterized by comprising a key contact, a key main body, a key boss arranged on the key main body and a PEI boss fixedly sleeved outside the key boss; the key boss comprises a cylindrical boss, and the cylindrical boss is exposed out of the surface of one side, far away from the key main body, of the PEI boss; the key boss and the key contact are arranged oppositely, and the electronic equipment can execute corresponding operation through the contact and separation of the cylindrical boss of the key boss and the key contact.

2. The electronic device according to claim 1, wherein the PEI boss comprises a first portion and a second portion which are integrally arranged, the second portion is located on one side of the first portion, which is far away from the key main body, the first portion and the second portion together form a cavity for accommodating the key boss, and two opposite outer side walls of the second portion are both recessed inwards.

3. The electronic device of claim 1, wherein the key boss further comprises a base body, the base body comprises a first base body and a second base body which are sequentially arranged on the key main body, the first base body and the second base body are both rectangular, the width of the second base body is larger than that of the first base body so as to form a first step, the length of the second base body is smaller than that of the first base body so as to form a second step, and the limit of the PEI boss on the axis of the cylindrical boss is realized through the first step and the second step.

4. The electronic device of claim 3, wherein centers of the first and second substrates are located on an axis of the cylindrical boss.

5. The electronic device of claim 3, wherein the first substrate, the second substrate, and the cylindrical boss are a unitary structure.

6. The electronic device of claim 1, wherein the key boss is made of an aluminum alloy.

7. The electronic device of claim 1, wherein the PEI boss is formed outside the key boss by an in-mold molding process.

8. The electronic device according to claim 1, wherein the key main body comprises a main body part and a protruding part, the protruding part is disposed in a middle region of the main body part, and the key boss is disposed on a side surface of the protruding part away from the main body part.

9. The electronic device according to claim 8, wherein the key body further comprises two buckling parts, the buckling parts are arranged on two sides of the protruding part, and the buckling parts are used for being fixedly connected with a shell of the electronic device.

10. The electronic device of claim 1, further comprising a motherboard, wherein the key contacts are connected to the motherboard, and wherein the key contacts are dome keys.