CN219123130U

CN219123130U - Ultrathin key cap structure with light-transmitting characters

Info

Publication number: CN219123130U
Application number: CN202223584332.8U
Authority: CN
Inventors: 朱广权; 朱广南; 李建平
Original assignee: Huizhou Kexun Plastic Products Co ltd
Current assignee: Huizhou Kexun Plastic Products Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-02
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses an ultrathin key cap structure with light-transmitting characters, which consists of a cap body made of light-impermeable materials and a character part made of light-transmitting materials, wherein the cap body is provided with a knocking surface and a mounting surface, the character part is a substrate and character lugs protruding on the substrate, the character lugs of the character part are arranged to be embedded in the cap body in a fusing way, the height of the character lugs is consistent with the thickness of the knocking surface of the cap body, the top of the character lugs are exposed on the knocking surface of the cap body, and the substrate is tightly attached to the mounting surface of the cap body; when the light at the bottom of the key cap irradiates towards the substrate on the mounting surface of the cap body, the light can only transmit out of the knocking surface of the cap body from the character lug. The character lug is embedded in the cap body part in a fusing mode, the height of the character lug is consistent with the thickness of the knocking surface of the cap body part, the top of the character lug is exposed out of the knocking surface of the cap body part, the knocking surface of the cap body part is kept smooth, the pressing hand feeling cannot be affected, and the whole thickness of the cap body part cannot be increased.

Description

Ultrathin key cap structure with light-transmitting characters

Technical Field

The utility model relates to the field of key accessories, in particular to an ultrathin key cap structure with light-transmitting characters.

Background

The keyboard is used as a common peripheral of electronic products, and the application range of the keyboard is extremely wide. Along with the development of the user experience and personalized design of electronic products such as notebook computers, the ultrathin design of the keyboard corresponding to the user experience and personalized design is necessarily the key of thinning the electronic products. At present, there are many mature scheme technologies aiming at the ultrathin design of keyboard keys, but for the ultrathin design of key caps, especially for key caps with light transmission requirements (for realizing colorful effect or night recognition and other functions) aiming at character identification, how to realize ultrathin manufacture, low cost and environmental protection, and rapid and efficient assembly are the current technical vacancies.

The existing light-transmitting keycaps generally adopt a double-color mold process, and a light-transmitting bottom cap is arranged at the bottom of the original hollowed-out keycap, so that the flatness of the knocking surface of the keycap can be ensured, the character mark can transmit light, but the integral thickness of the keycap manufactured by the process cannot be reduced, the keycap cannot be suitable for the design requirement of an ultrathin keyboard, and more materials are wasted.

Disclosure of Invention

The utility model aims to provide a material-saving structure with light-transmitting characters, which is suitable for ultrathin key caps.

In order to achieve the technical purpose, the scheme of the utility model is as follows: the ultrathin key cap structure with the light-transmitting characters comprises a cap body made of light-impermeable materials and a character part made of light-transmitting materials, wherein the cap body is provided with a knocking surface and a mounting surface, the character part is a substrate and character lugs protruding on the substrate, the character lugs of the character part are arranged to be embedded in the cap body in a fusing mode, the height of the character lugs is consistent with the thickness of the knocking surface of the cap body, the top of the character lugs are exposed out of the knocking surface of the cap body, and the substrate is tightly attached to the mounting surface of the cap body; when the light at the bottom of the key cap irradiates towards the substrate on the mounting surface of the cap body, the light can only transmit out of the knocking surface of the cap body from the character lug.

Preferably, the substrate area of the character portion matches the maximum area occupied by the periphery of the corresponding character bump.

Preferably, the substrate of the character part is provided with at least one reinforcing fusion hole.

Preferably, when the character bump has an inner structure which is fully enclosed, an injection molding flow hole is formed at a position of the substrate corresponding to the inner structure.

The beneficial effects of the utility model are as follows: according to the method, the character lugs are embedded in the cap body in a fusing mode, the height of the character lugs is consistent with the thickness of the knocking surface of the cap body, the tops of the character lugs are exposed out of the knocking surface of the cap body, so that the knocking surface of the cap body is kept smooth, the pressing hand feeling is not affected, the whole thickness of the cap body is not increased, and when the cap is used, only the effect of light transmission of the character marks can be achieved by matching the luminous elements; the keyboard is light and thin, meanwhile, materials are saved, the manufacturing process is simple, the cost is greatly saved, and the efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of a cap portion and a character portion of the present utility model; (for ease of understanding, the cap body and the character part are exploded apart, and in practice, the cap body and the character part are injection-molded integrally and tightly bonded)

FIG. 3 is a schematic view of the back structure of the present utility model;

fig. 4 is a schematic diagram of the structure of a character part in the present utility model;

FIG. 5 is a schematic diagram of the present utility model used with a light emitting device.

In the figure: 1. a cap body; 101. a striking surface; 102. a mounting surface; 2. a character section; 201. a substrate; 202. character bumps; 2021. an inner structure; 203. reinforcing the fusion holes; 204. injection molding into the flow hole; 3. a light emitting element.

Detailed Description

The utility model will now be described in further detail with reference to the drawings and to specific examples. For a clear and complete description of the technical solutions, the following examples are chosen for illustration; the following examples are some of the examples of the present utility model; other embodiments, which are obtained without making any inventive effort, are within the scope of the present utility model based on the present application.

In the following embodiments, it should be noted that, the terms "upper", "lower", "left", "right", "inner", "outer", "top/bottom", and the like are all based on the orientation or positional relationship shown in the drawings, and are merely for the sake of clarity in describing the present embodiment, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, and therefore should not be construed as limiting the present application. Meanwhile, the "first" and "second" in the embodiments are used for distinguishing descriptive purposes only and are not represented as indicating or implying relative importance.

As shown in fig. 1 to 4, the specific embodiment of the present utility model is an ultrathin key cap structure with transparent characters, the key cap is composed of a cap body 1 made of opaque material and a character part 2 made of transparent material, the cap body 1 is provided with a knocking surface 101 and a mounting surface 102, the knocking surface 101 is a front surface pressed during use, and the mounting surface 102 is a back surface facing upwards and molded by a mold during injection molding.

The character part 2 is a substrate 201 and a character lug 202 protruding on the substrate 201, the substrate 201 and the character lug 202 are both made of transparent materials, the character lug 202 of the character part 2 is configured to be embedded in the cap body 1, the character lug 202 and the cap body 1 are tightly adhered and cannot be separated, the height of the character lug 202 is consistent with the thickness of the knocking surface 101 of the cap body 1, the top of the character lug 202 is exposed out of the knocking surface 101 of the cap body 1, the knocking surface 101 of the cap body 1 is kept smooth and flat, the pressing hand feeling is not affected, and an embedded groove is correspondingly molded on the mounting surface 102, and the embedded groove is matched with the substrate 201, so that the substrate 201 is tightly attached to the mounting surface 102 of the cap body 1, and the overall thickness of the cap body 1 is not increased.

When the key is used, as shown in fig. 5, the light emitting element 3 is arranged in the key seat, and when the light at the bottom of the key cap irradiates towards the substrate 201 of the mounting surface 102 of the cap body 1, the light can only transmit out of the knocking surface 101 of the cap body 1 from the position of the character bump 202, so that the key achieves the effect of only emitting light of characters.

In order to reduce the area of the substrate 201 as much as possible, the area of the substrate 201 of the character portion 2 is matched with the largest area occupied by the periphery of the corresponding character bump 202, so that the substrate 201 is minimized, material is saved, and the influence of the area on the overall thickness of the cap body 1 is reduced.

In order to make the combination of the cap body 1 and the character part 2 more compact when the cap body 1 is injection molded, at least one reinforcing fusion hole 203 is arranged on the base plate 201 of the character part 2, so that the opaque cap body injection molding material has more contact area with the character part when fused, and the character part 2 is fully combined with the cap body 1.

The character bump 202 includes some fully-enclosed inner structures 2021 that cannot flow into the mold from the surrounding, when the character bump 202 has the fully-enclosed inner structures 2021, the position of the substrate 201 corresponding to the inner structures 2021 is provided with the injection molding flow holes 204, and the injection molding flow holes 204 have drainage channels during injection molding, so that the injection molding material can flow into the inner structures 2021 to form the corresponding structures of the cap body 1.

The manufacturing method of the ultrathin key cap structure comprises the following steps: the mold adopts a male protruding mode to construct a transparent material character part 2 required by the key cap, the opaque plastic material is injection molded into the cap body part 1 through a double-color mold process injection mold, so that a transparent character mark is formed on the injection molded key cap, the mold is provided with a reinforced fusion hole 203 and an injection molding inflow hole 204, the injection molding material flows into the reinforced fusion hole to form a fixed adhesive piece, so that the cap body part 1 and the character part 2 are tightly combined, the injection molding material flows into the injection molding inflow hole 204 of the full-surrounding inner structure 2021 of the character part 2 through an injection molding channel, and the injection molding material is filled in the full-surrounding inner structure 2021.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model, but any minor modifications, equivalents, and improvements made to the above embodiments according to the technical principles of the present utility model should be included in the scope of the technical solutions of the present utility model.

Claims

1. An ultra-thin key cap structure with light-transmitting characters, which is characterized in that: the key cap is composed of a cap body made of light-tight materials and a character part made of light-tight materials, the cap body is provided with a knocking surface and a mounting surface, the character part is a substrate and a character lug protruding on the substrate, the character lug of the character part is configured to be embedded in the cap body in a fusion mode, the height of the character lug is consistent with the thickness of the knocking surface of the cap body, the top of the character lug is exposed out of the knocking surface of the cap body, and the substrate is tightly attached to the mounting surface of the cap body; when the light at the bottom of the key cap irradiates towards the substrate on the mounting surface of the cap body, the light can only transmit out of the knocking surface of the cap body from the character lug.

2. The ultra thin key cap structure with light transmissive character according to claim 1, wherein: the substrate area of the character part is matched with the maximum area occupied by the periphery of the corresponding character lug.

3. The ultra thin key cap structure with light transmissive character according to claim 1, wherein: at least one enhanced fusion hole is arranged on the base plate of the character part.

4. The ultra thin key cap structure with light transmissive character according to any one of claims 1 to 3, wherein: when the character lug is provided with the fully-enclosed inner structure, the position of the substrate corresponding to the inner structure is provided with the injection molding flow hole.