CN202856827U

CN202856827U - Mobile phone and P+R key structure thereof

Info

Publication number: CN202856827U
Application number: CN 201220484805
Authority: CN
Inventors: 程华俊; 严斌斌
Original assignee: Huizhou TCL Mobile Communication Co Ltd
Current assignee: Huizhou TCL Mobile Communication Co Ltd
Priority date: 2012-09-21
Filing date: 2012-09-21
Publication date: 2013-04-03
Anticipated expiration: 2022-09-21

Abstract

The utility model discloses a mobile phone and a P+R key structure thereof. The P+R key structure comprises a plastic key cap, a rubber key sleeve and a bracket. The bracket is positioned between the plastic key cap and the rubber key sleeve. The shape of the bracket is matched with the shape of the rubber key sleeve. The bracket is internally provided with a single hole cavity structure which is matched with an outline of the whole plastic key cap. The plastic key sleeve is formed by a rubber layer and a TPU layer which is positioned at a surface layer of the rubber key sleeve. Since the bracket with the single hole cavity structure which is matched with the outline of the whole plastic key cap is employed between the plastic key cap and the rubber key sleeve, the bracket is just positioned around the plastic key cap, a key area has no bracket, the overall thickness of keys is reduced, the hand feeling of the keys is improved, the plastic key cap is difficult to be ruptured in a key hit test, at the same time, the strength of the keys is increased through the combination of a double-layer structure of the rubber key sleeve and the bracket, thus the P+R key structure has the advantages of small thickness, good strength, high rate of good product and low cost.

Description

A kind of mobile phone and P+R press-key structure thereof

Technical field

The utility model relates to mobile phone key and P+R key component field thereof, the mobile phone that in particular a kind of cost is low, intensity is good and ultra-thin P+R press-key structure thereof.

Background technology

The P+R mobile phone key belongs to a kind of in numerous mobile phone keys, specifically refers to a kind of plastic cement and silicon rubber in conjunction with the button that forms, and P wherein refers to the Plastic plastic cement, and R refers to Rubber rubber.Plastic cement becomes the plastic cement keycap by injection mo(u)lding, by printing, oil spout, radium carving or the technique such as die-cut, forms different colors, different font or patterns, and silicon rubber becomes liner by the oil pressure moulding, and then both applyings namely become the P+R mobile phone key.

As shown in Figure 1, Fig. 1 is the exploded view of conventional mobile phone P+R press-key structure embodiment one, this P+R press-key structure mainly overlaps 130 3 parts by plastics keycap 110, metallic support 120 and rubber key and forms, metallic support 120 upper punches are shaped with the porous cavity configuration, each vestibule 121 corresponding function key, overlap 130 o'clock described metallic supports 120 at the injection mo(u)lding rubber key and combine together with it as mold insert, to reach the effect of thickness ultrathin.But, because the location hole 131 that described rubber key overlaps on 130 edges can't be die-cut, can only process by hand, complex forming technology, yields is lower, so that the overall cost of button increases; And because described metallic support 120 hardness are harder, not yielding, intensity is better, in the process of carrying out button strike test, easily cause described plastics keycap 110 to occur breaking, rubber key cover 130 surfaces are white simultaneously, not shading, and the light of key-press backlight easily appears the slit between plastics keycap 110.

As shown in Figure 2, Fig. 2 is the exploded view of conventional mobile phone P+R press-key structure embodiment two, this P+R press-key structure mainly overlaps 230 3 parts by plastics keycap 210, PET support 220 and rubber key and forms, and same punching has the porous cavity configuration on the PET support 220, each vestibule 221 corresponding function key.Although the location hole 231 that described rubber key overlaps on 230 edges can punching press,, PET support 220 needs to increase the thickness of PET support 220 on its general thickness between plastics keycap 210 and rubber key cover 230, cause the overall thickness of button thicker; PET support 220 is positioned at the below of plastics keycap 210 simultaneously, so that the feel of button is relatively poor; Rubber key cover 230 is simple silica gel structure in addition, and its intensity is relatively poor; And Silica Surface is white, not shading, and the light of key-press backlight also easily appears the slit between plastics keycap 210.

Therefore, prior art still haves much room for improvement and develops.

The utility model content

For solving the problems of the technologies described above, the utility model provides a kind of P+R press-key structure, and thin thickness, intensity is good, yields is high, cost is low.

The technical solution of the utility model is as follows: a kind of P+R press-key structure, comprise plastics keycap, rubber key cover and support, described support is between described plastics keycap and rubber key cover, the profile of the profile of described support and described rubber key cover is suitable, wherein, the inside of described support has the single hole cavity configuration suitable with the outline of whole described plastic key cap portion, and described rubber key cover is comprised of rubber layer and TPU layer, and described TPU layer is positioned at the top layer of described rubber key cover part.

Described P+R press-key structure, wherein: described support sticks on the described rubber key cover surface by the support gum, and described support gum has shape and the structure identical with described support.

Described P+R press-key structure, wherein: described support is set to the PET support.

Described P+R press-key structure, wherein: described TPU layer surface silk-screen has black ink layer.

Simultaneously, the utility model also provides a kind of P+R key part lower-cost ultra thin handset, comprises the P+R button, and wherein: described P+R button has such as each described P+R press-key structure in above-mentioned.

A kind of mobile phone provided by the utility model and P+R press-key structure thereof, owing between plastics keycap and rubber key overlap, having adopted the support that has with the suitable single hole cavity configuration of the outline of whole plastic key cap portion, support only be positioned at the plastics keycap around, do not have support in the key area, not only attenuate the overall thickness of button, and improved the feel of button, in button strike test, also be difficult for causing the plastics keycap to occur breaking, the rubber key cover has also adopted injection moulding to be rubber inner layer and the TPU top layer double-decker of one simultaneously, cooperate the described support of button periphery to increase by bond strength together, so that P+R press-key structure thin thickness of the present utility model, intensity is good, yields is high, cost is low.

Description of drawings

Fig. 1 is the exploded view of conventional mobile phone P+R press-key structure embodiment one.

Fig. 2 is the exploded view of conventional mobile phone P+R press-key structure embodiment two.

Fig. 3 is the exploded view figure of the utility model mobile phone P+R press-key structure.

Embodiment

Below with reference to accompanying drawing, embodiment of the present utility model and embodiment are described in detail, described specific embodiment is not be used to limiting embodiment of the present utility model only in order to explain the utility model.

As shown in Figure 3, Fig. 3 is the exploded view of the utility model mobile phone P+R press-key structure, described P+R press-key structure mainly overlaps 330 3 parts by plastics keycap 310, support 320 and rubber key and forms, on the one hand, the profile of the profile of described support 320 and described rubber key cover 330 is suitable, the inside of described support 320 has single hole chamber 321 structures suitable with the outline of whole described plastics keycap 310 parts, with attenuate button general thickness, improve handfeel of keys, avoid hitting the test link and cause the plastic cement keycap to occur breaking; On the other hand, described rubber key cover 330 is by rubber layer and TPU (Thermoplastic polyurethanes, thermoplastic polyurethane elastic rubber) layer passes through secondary injection molding, described TPU layer is positioned at the top layer of described rubber key cover part, so the intensity of whole button and toughness are greatly improved than pure silicon glue button.

In the preferred implementation of the utility model P+R press-key structure, then the PET support that described support 320 usefulness PET sheet punching go out sticks on described rubber key by support gum 340 and overlaps 330 surfaces, rather than employing composite molding technique, so moulding process is simple, yields is high, and cost is low.

In addition, TPU intensity is good, and available printing ink becomes black with the surperficial silk-screen of TPU layer, is used for shading, can solve the slit printing opacity problem between the keycap.

Based on above-mentioned P+R press-key structure, the utility model has also proposed a kind of mobile phone, comprises the P+R button, wherein, described P+R button has the P+R press-key structure among above-mentioned each embodiment, and to reduce the cost of P+R key part, cost that can be lower is made complete machine thin.Especially in mobile phone industry with keen competition, do that thin to do little be future development trend, low cost tends to make product to have more competitiveness.

Should be understood that; the above only is preferred embodiment of the present utility model; be not sufficient to limit the technical solution of the utility model; for those of ordinary skills; within spirit of the present utility model and principle; can be increased and decreased according to the above description, replacement, conversion or improvement, and all these increases and decreases, replacement, conversion or improve after technical scheme, all should belong to the protection range of the utility model claims.

Claims

1. P+R press-key structure, comprise plastics keycap, rubber key cover and support, described support is between described plastics keycap and rubber key cover, the profile of the profile of described support and described rubber key cover is suitable, it is characterized in that, the inside of described support has the single hole cavity configuration suitable with the outline of whole described plastic key cap portion, and described rubber key cover is comprised of rubber layer and TPU layer, and described TPU layer is positioned at the top layer of described rubber key cover part.

2. P+R press-key structure according to claim 1 is characterized in that: described support sticks on the described rubber key cover surface by the support gum, and described support gum has shape and the structure identical with described support.

3. P+R press-key structure according to claim 1, it is characterized in that: described support is set to the PET support.

4. P+R press-key structure according to claim 1 is characterized in that: described TPU layer surface silk-screen has black ink layer.

5. a mobile phone comprises the P+R button, it is characterized in that: described P+R button has such as each described P+R press-key structure in the claim 1 to 4.