Precise injection molding part for notebook keyboard

By designing a detachable positioning device and a multi-color recognition plate for the precision injection molded parts of the laptop keyboard, the problems of inconvenient keycap label replacement and insufficient single-color labeling have been solved, enabling quick keycap replacement and high labeling, thus improving the user experience.

CN224164181UActive Publication Date: 2026-04-24JIANGSU KAILIDI PRECISION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU KAILIDI PRECISION TECH CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The markings on existing laptop keyboard keycaps are not easy to replace quickly, and the single-color markings are not clear enough, resulting in inconvenience and risk of eye injury.

Method used

A precision injection molded notebook keyboard part was designed, including a keycap shell, a cross-shaped reinforcing plate, and a positioning device. The positioning device is detachable via a threaded connection and includes a light-transmitting support plate, a multi-color recognition plate, and LED beads, enabling quick replacement and improving identification.

Benefits of technology

It enables quick disassembly and assembly of the keycap shell, facilitates the replacement of the light-transmitting support plate, improves personalization and brand recognition, and reduces the risk of eye fatigue.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224164181U_ABST
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Abstract

The utility model discloses a precise injection molding part of a notebook keyboard, which comprises a keycap shell for supporting, an alignment rotating groove and a cross-shaped reinforcing plate are arranged in the middle of the upper end face of the keycap shell, and the cross-shaped reinforcing plate is fixedly arranged on the inner end face of the keycap shell. The detachable positioning device is arranged, the light-transmitting supporting plate can be in threaded connection with the threaded guide groove through the threaded guide shaft, then rapid and convenient disassembly and assembly are completed, the convenience of replacing the light-transmitting supporting plate by the device is effectively improved, meanwhile, the combination of the four sets of lamp beads and the multi-color recognition plate is achieved, and the light-transmitting supporting plate can be conveniently disassembled and assembled. The individuation degree of the upper part of the keycap shell can be effectively improved, and the keycap shell has identification degree and identification degree, so that the practical performance of the keycap shell in use is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of notebook keyboard injection molding equipment, specifically a precision injection molded part for a notebook keyboard. Background Technology

[0002] Injection-molded keycaps for laptop keyboards are components that directly interact with the user. The keycaps are printed with letters, numbers, symbols, and other markings to help users accurately identify and operate each key, thereby improving input efficiency.

[0003] For example, the utility model patent disclosed in publication number CN216213039U discloses a notebook keyboard keycap with better backlight performance, including a keycap, a light-transmitting character, a light-transmitting layer, and a keyboard switch. The keycap has a light-transmitting character on its upper surface, a light-transmitting layer is installed on the upper surface of the keycap's inner cavity, the light-transmitting character is fixedly installed on the upper surface of the light-transmitting layer, a connecting key is fixedly installed on the upper surface of the keycap's inner cavity, a locking groove is opened on the lower surface of the connecting key, a locking pin is installed on the upper surface of the keyboard switch, and the locking pin is engaged with the locking groove. A light-concentrating component is installed inside the keycap. The above structure solves the problem that the previous method of controlling the thickness of the keycap to achieve the light transmission effect caused the keyboard light to be very scattered, which would be dazzling when looking at the keyboard at night and would cause eye damage after long-term use.

[0004] Although the aforementioned keycaps have a certain light-focusing performance, they are not convenient for quickly changing the keyboard's marking surface according to needs, thus reducing the keycaps' practicality. At the same time, the single-color marking of the aforementioned keycaps is also insufficient. Therefore, there is an urgent need for a precision injection molded part for laptop keyboards to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a precision injection molded part for a notebook keyboard to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision injection molded part for a notebook keyboard, comprising a keycap housing for support, and an alignment groove is provided at the center of the upper end surface of the keycap housing.

[0007] A cross-shaped reinforcing plate is fixedly disposed on the inner end face of the keycap housing, and a threaded guide groove is provided at the center of the upper end face of the cross-shaped reinforcing plate, and a cross shaft retaining groove is provided at the center of the lower end face of the cross-shaped reinforcing plate.

[0008] A positioning device is threadedly connected to the upper end face of the keycap housing via the threaded guide groove. The positioning device is used for marking and support.

[0009] Preferably, the positioning device includes an alignment turntable, the upper end face of which is provided with a light-transmitting support plate, and four sets of multi-color recognition plates are equidistantly arranged on the upper end face of the light-transmitting support plate, and protective protrusions are equidistantly arranged on the upper end face of the multi-color recognition plates. Four sets of LED beads are equidistantly arranged inside the lower end face of the alignment turntable, and a threaded guide shaft is fixedly arranged at the center of the lower end face of the alignment turntable.

[0010] Preferably, the alignment turntable is rotatably mounted on the upper surface of the keycap housing via the alignment slot. The alignment slot provides sufficient limiting foundation for the alignment turntable, thereby improving the stability of the subsequent radial limiting of the alignment turntable by the keycap housing.

[0011] Preferably, the upper part of the LED beads is directly opposite the center of the multi-color recognition plate, and the four sets of LED beads can emit light of the same color and different colors, which makes it convenient to improve the personalization of the upper part of the keycap shell according to the needs, and also improves the identification of the keycap shell.

[0012] Preferably, the alignment turntable is adapted to the threaded guide shaft and the threaded guide groove and then threadedly connected to the cross reinforcing plate. The threaded connection between the threaded guide shaft and the threaded guide groove allows users to quickly disassemble and replace the light-transmitting support plate, improving the practicality and ease of disassembly of the keycap housing.

[0013] Preferably, the protective protrusion has a hemispherical cross-section, which can effectively improve the friction with the finger and thus improve the directional stability of the user pressing the keycap housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting a detachable positioning device, allows the light-transmitting support plate to be connected to the threaded guide shaft and the threaded guide groove through a threaded connection, thereby completing quick and convenient disassembly and assembly. This effectively improves the convenience of replacing the light-transmitting support plate. At the same time, the combination of four sets of LED beads and multi-color recognition plates can effectively improve the personalization of the upper part of the keycap shell, and make it more distinctive and recognizable, thereby improving the practical performance of the keycap shell during use. Attached Figure Description

[0016] Figure 1 This is an exploded view of the main body of this utility model;

[0017] Figure 2 For the present utility model Figure 1 A magnified view of a section at point I;

[0018] Figure 3 This is a schematic diagram of the main structure of the present utility model;

[0019] Figure 4 This is a schematic diagram of the positioning device of this utility model;

[0020] Figure 5 This is a side view of the positioning device of this utility model.

[0021] In the diagram: 1-cross reinforcing plate, 2-positioning device, 3-alignment slot, 4-keycap housing, 5-threaded guide groove, 6-cross shaft slot, 21-light-transmitting support plate, 22-alignment turntable, 23-threaded guide shaft, 24-LED bead, 25-multicolor identification plate, 26-protective protrusion. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 The present invention provides an embodiment of a precision injection molded keyboard for laptops, comprising a keycap housing 4 for support, and an alignment groove 3 located at the center of the upper end face of the keycap housing 4.

[0024] A cross-shaped reinforcing plate 1 is fixedly installed on the inner end face of the keycap housing 4, and a threaded guide groove 5 is provided at the center of the upper end face of the cross-shaped reinforcing plate 1, and a cross shaft groove 6 is provided at the center of the lower end face of the cross-shaped reinforcing plate 1.

[0025] Positioning device 2 is threadedly connected to the upper end face of keycap housing 4 via threaded guide groove 5. Positioning device 2 is used for marking and support.

[0026] like Figure 4 and Figure 5 The positioning device 2 includes an alignment turntable 22. A light-transmitting support plate 21 is provided on the upper end surface of the alignment turntable 22. Four sets of multi-color recognition plates 25 are equidistantly arranged on the upper end surface of the light-transmitting support plate 21. Protective protrusions 26 are equidistantly arranged on the upper end surface of the multi-color recognition plates 25. Four sets of LED beads 24 are equidistantly arranged inside the lower end surface of the alignment turntable 22. A threaded guide shaft 23 is fixedly arranged at the center of the lower end surface of the alignment turntable 22.

[0027] like Figure 2 The alignment turntable 22 is rotatably mounted on the upper surface of the keycap housing 4 via the alignment groove 3. The alignment groove 3 can provide sufficient limiting base for the alignment turntable 22, thereby improving the stability of the subsequent radial limiting of the alignment turntable 22 by the keycap housing 4.

[0028] like Figure 4 The upper part of the LED bead 24 is directly opposite the center of the multi-color recognition plate 25. The four sets of LED beads 24 can emit light of the same color and light of different colors, which makes it convenient to improve the personalization of the upper part of the keycap shell 4 according to the needs, and also improves the identification of the keycap shell 4.

[0029] like Figure 1 The alignment turntable 22 is adapted to the threaded guide groove 5 through the threaded guide shaft 23 and then threadedly connected to the cross reinforcing plate 1. The threaded connection between the threaded guide shaft 23 and the threaded guide groove 5 makes it convenient for users to quickly disassemble and replace the light-transmitting support plate 21, thereby improving the practicality and ease of disassembly of the keycap housing 4.

[0030] like Figure 2 The protective protrusion 26 has a hemispherical cross-section, which can effectively improve the friction with the finger and thus improve the directional stability of the user pressing the keycap housing 4.

[0031] Working principle: During use, the light-transmitting support plate 21 can be connected to the threaded guide groove 5 through the threaded guide shaft 23, thereby completing quick and convenient disassembly and assembly, effectively improving the convenience of replacing the light-transmitting support plate 21. At the same time, the combination of four sets of LED beads 24 and multi-color recognition plate 25 can effectively improve the personalization of the upper part of the keycap shell 4, and make it more distinctive and recognizable, thereby improving the practical performance of the keycap shell 4 during use. Meanwhile, multiple sets of protective protrusions 26 can also improve the directional accuracy of the keycap shell 4 when the operator uses it, thereby improving the stability of pressing.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision injection molded keyboard for a notebook computer, comprising a keycap housing (4) for support, and an alignment groove (3) is provided at the center of the upper end face of the keycap housing (4), characterized in that: A cross-shaped reinforcing plate (1) is fixedly disposed on the inner end face of the keycap housing (4), and a threaded guide groove (5) is provided at the center of the upper end face of the cross-shaped reinforcing plate (1), and a cross shaft slot (6) is provided at the center of the lower end face of the cross-shaped reinforcing plate (1). Positioning device (2) is threadedly connected to the upper end face of the keycap housing (4) through the threaded guide groove (5). The positioning device (2) is used for marking and support.

2. The precision injection molded keyboard part for a notebook computer according to claim 1, characterized in that: The positioning device (2) includes a positioning turntable (22). A light-transmitting support plate (21) is provided on the upper end surface of the positioning turntable (22). Four sets of multi-color identification plates (25) are equidistantly arranged on the upper end surface of the light-transmitting support plate (21). Protective protrusions (26) are equidistantly arranged on the upper end surface of the multi-color identification plates (25). Four sets of LED beads (24) are equidistantly arranged inside the lower end surface of the positioning turntable (22). A threaded guide shaft (23) is fixedly arranged at the center of the lower end surface of the positioning turntable (22).

3. A precision injection molded keyboard part for a notebook computer according to claim 2, characterized in that: The alignment turntable (22) is rotatably mounted on the upper surface of the keycap housing (4) via the alignment slot (3).

4. A precision injection molded keyboard part for a notebook computer according to claim 2, characterized in that: The upper part of the LED bead (24) is directly opposite the center of the multicolor identification plate (25).

5. A precision injection molded keyboard part for a notebook computer according to claim 2, characterized in that: The alignment turntable (22) is adapted to the threaded guide groove (5) through the threaded guide shaft (23) and then threadedly connected to the cross reinforcing plate (1).

6. A precision injection molded notebook keyboard according to claim 2, characterized in that: The protective protrusion (26) has a hemispherical cross-section.

Citation Information

Patent Citations

  • Notebook keyboard keycap with better backlight performance

    CN216213039U