CN202534564U

CN202534564U - Mobile terminal waterproof key structure

Info

Publication number: CN202534564U
Application number: CN2012201385370U
Authority: CN
Inventors: 李任强; 唐萍萍; 吴永伟
Original assignee: BEIJING ZHAOTONG ZHISHENG TECHNOLOGY CO LTD
Current assignee: Beijing Hezhong Sizhuang Space-time Material Union Technology Co., Ltd.
Priority date: 2012-04-01
Filing date: 2012-04-01
Publication date: 2012-11-14
Anticipated expiration: 2022-04-01

Abstract

The utility model relates to a mobile terminal waterproof key structure. The mobile terminal waterproof key structure comprises a T-shaped key which is arranged in a mobile terminal casing body in a penetration way. The mobile terminal waterproof key structure is characterized in that the position, which is between the recess under the shoulder of the T-shaped key and the casing body, is in interference joint with a horn-shaped silicone sleeve, so that the gap between the T-shaped key and the casing body is contained in the closed region enclosed by the T-shaped key, the casing body and the horn-shaped silicone sleeve. The T-shaped key is formed by injecting a PC material outside a rod-shaped TPU soft material. Specifically, an upper nozzle of the horn-shaped silicone sleeve is provided with an everted smooth convex head, wherein the everted smooth convex head is matched with the recess under the shoulder of the T-shaped key. The lower nozzle of the horn-shaped silicone sleeve gradually shrinks into a vertical closing in nozzle, wherein the vertical closing in nozzle is in interference fit with the casing body. According to the utility model, the horn-shaped silicone sleeve is arranged between the key and the casing body, thus the reset of the key is ensured, water is effectively discharged, and the mobile terminal can be normally used in the environments of a humid and rainy day and the like.

Description

A kind of portable terminal Waterproof push-button structure

Technical field

The utility model relates to the waterproofing design of portable terminal, specifically is about a kind of improvement of portable terminal Waterproof push-button structure, is used for the use of mobile phone, intercom or PDA etc.

Background technology

Certainly exist various buttons on the portable terminal.As shown in Figure 1, mobile terminal key 10 generally is to pass casing, and an end is exposed, and is tangible, and the other end extend into internal body and triggers internal switch.Because being the opening along housing, button extend into internal body; With housing is to flexibly connect; Therefore certainly exist the gap at interface, rainwater or dust etc. has the possibility that falls in the body naturally, and this just certainly will be related to its waterproof problem; If it is unreasonable that the structure at button place is done, will in body, seep water thus.Common portable terminal does not possess water-proof function, under the environment of rainy day and humidity, can not normally use; And the intercom that has water-proof function on the market generally adopts the form of double color mould that the TPU material is directly penetrated to adhere on the casing surface, and reaching the function of waterproof, but cost of manufacture is high and feel is bad like this.

Summary of the invention

Therefore, to the problems referred to above, the purpose of the utility model provides a kind of good water-proof effect, installs simply, and cost is low, the portable terminal Waterproof push-button structure of good hand touch.

For realizing above-mentioned purpose; The utility model is taked following technical scheme: a kind of portable terminal Waterproof push-button structure, and it comprises one " T " shape button, is located in the housing of portable terminal; It is characterized in that: under the shoulder of said " T " shape button between recess place and the housing; Interference is connected with a tubaeform silica gel sheath, makes in the closed area that said " T " shape button, housing, tubaeform silica gel sheath surround, and contains the gap that forms between " T " shape button and the housing.

Say that further said " T " shape button is the TPU flexible glue material by a rod, the injection molding PC material forms outside.

Say that further the TPU flexible glue material top and the bottom of said rod are respectively arranged with contact, said injection molding PC material overlays on the top and the bar portion of the TPU flexible glue material of said rod, and said two contacts are exposed.

Say that further said tubaeform silica gel sheath is suitable for reading to have a slick and sly plush copper of eversion type, with recess interference fit under the shoulder of said " T " shape button; Said tubaeform silica gel sheath end opening is apered to vertical closing in, with said housing interference fit.

The utility model is owing to take above technical scheme; It has the following advantages: 1, the utility model is after being inserted in tubaeform flexible silicon gum cover on " T " shape button, to be pressed into housing together; Tubaeform flexible silicon gum cover one end and " T " shape button interference fit, the other end and housing interference fit, tubaeform flexible silicon gum cover, " T " shape button, housing triplicity get up to form the anti-aqua region of a sealing; Just the interface gaps that exists between button and the housing originally is included in the closed area; Do not contact, so rainwater etc. can not flow into from the gap in the body naturally again, therefore have effective waterproof effect with the external world.2, therefore the tubaeform silica gel sheath of the utility model setting can make button that good hand feeling is arranged because good elasticity is arranged, even if along with button suppresses, also can not come off.3, " T " shape button also be by the TPU flexible glue material of a rod outside the injection molding PC material form, tubaeform silica gel sheath cooperates with it, can have synchronous elasticity.4, the utility model is installed simply, only needs tubaeform silica gel sheath is enclosed within on the button, is pressed in the housing together then to get final product, and tubaeform silica gel sheath cost is also cheaper, and manufacturing process is also simple, is suitable for the improvement of all exposed conveying appliance buttons.

Description of drawings

Fig. 1 is the button sketch map of portable terminal;

Fig. 2 is the sketch map of " T " shape button;

Fig. 3 is the cutaway view that " T " shape button is extend into the inside of body along the opening of housing;

Fig. 4 is the sketch map of tubaeform silica gel sheath;

Fig. 5 is the equipped cutaway view of tubaeform silica gel sheath, " T " shape button and shell combination.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is carried out detailed description.

As shown in Figure 2, the utility model has carried out following improvement to the button part-structure of portable terminal, and it is provided with one " T " shape button 1, and " T " shape button 1 is the TPU flexible glue material 11 by a rod, " T " shape structure of injection molding PC material 12 formation outside.TPU flexible glue material 11 tops and the bottom of rod are provided with

contact

13,14 respectively, and top contact 13 is as the button end, and bottom contact 14 is as the trigger end of internal switch; The PC of injection moulding material 12 mainly overlays on top and the bar portion of the TPU flexible glue material 11 of rod, and TPU flexible glue material 11 tops and the

bottom contact

13,14 of rod exposed, and the PC of injection moulding expects that 12 part makes the ledge structure that is equipped with housing.Simultaneously, because button is " T " shape structure, thus be formed with recess 15 under the shoulder naturally in the shoulder bottom of button, as shown in Figure 1.

Further, the form injection moulding that the TPU flexible glue material 11 of rod and PC material 12 can double color moulds forms.

As shown in Figure 3, " T " shape button 1 is extend into the inside of body along the opening of housing 2, the button upper end is basic concordant with housing, and the lower end activity touches on & off switch 3, gets final product trigger switch through button.So-called movable contact is meant, when button downwards, and the descending trigger switch key 3 of button, after loosing one's grip, button relies on elastic returning, breaks away from on & off switch 3 again.

Since belong to flexible connection between button and housing, thus certainly exist gap A, therefore; The utility model also spy is provided with a tubaeform silica gel sheath 4, and is as shown in Figure 4, and it is suitable for reading big young down; Edge suitable for reading is made as has the slick and sly plush copper form of eversion type, and end opening is shrunk to vertical state gradually.The making principle of the slick and sly plush copper 41 of eversion type is that recess 15 matches under the shoulder with " T " shape button, and the making principle of the vertical closing in 42 of lower end is to match with housing 2.When equipped; At first tubaeform water-proof silica-gel cover 4 is set on " T " shape button 1; Make recess 15 interference fit under the shoulder of the slick and sly plush copper 41 of eversion type and " T " shape button; This is pressed into composite entity in housing 2 one bayonet sockets then, make vertical closing in 42 also with housing 2 interference fit, button can not break away from housing under the normal condition.

As shown in Figure 5, because recess 15 interference fit under the shoulder of tubaeform silica gel sheath 4 one ends and " T " shape button, the other end and housing 2 interference fit; So in tubaeform silica gel sheath 4; Form an enclosed areas B by tubaeform silica gel sheath 4, " T " shape button 1, housing 2 threes, gap A is contained in this zone, when foreign material such as rainwater fall into; Just keep out beyond enclosed areas B by tubaeform silica gel sheath 4, and can not from the A of gap, flow into internal body.

Are elastic components owing to tubaeform silica gel sheath 4 again, so when pressing keys, the tubaeform silica gel sheath 4 that is interference fitted between button and the housing can together suppress with button, and unlikely disengaging button and housing.

What be worth explanation is; The foregoing description and description of drawings; It all only is the technical scheme that is used to clearly demonstrate the utility model; Wherein the partial structurtes of each parts, connected mode etc. all can change to some extent, and every equivalents of on the basis of the utility model technical scheme, carrying out and improvement all should not got rid of outside the protection range of the utility model.

Claims

1. portable terminal Waterproof push-button structure; It comprises one " T " shape button; Be located in the housing of portable terminal, it is characterized in that: under the shoulder of said " T " shape button between recess place and the housing, interference is connected with a tubaeform silica gel sheath; In the closed area that said " T " shape button, housing, tubaeform silica gel sheath surround, tubaeform silica gel sheath contains the gap that forms between " T " shape button and the housing.

2. a kind of portable terminal Waterproof push-button structure as claimed in claim 1 is characterized in that: said " T " shape button is the TPU flexible glue material by a rod, and the injection molding PC material forms outside.

3. a kind of portable terminal Waterproof push-button structure as claimed in claim 2; It is characterized in that: the TPU flexible glue material top and the bottom of said rod are respectively arranged with contact; Said injection molding PC material overlays on the top and the bar portion of the TPU flexible glue material of said rod, and said two contacts are exposed.

4. like claim 1 or 2 or 3 described a kind of portable terminal Waterproof push-button structures, it is characterized in that: said tubaeform silica gel sheath is suitable for reading to have a slick and sly plush copper of eversion type, with recess interference fit under the shoulder of said " T " shape button; Said tubaeform silica gel sheath end opening is apered to vertical closing in, with said housing interference fit.