WO2020073428A1

WO2020073428A1 - Key switch supplemental structure

Info

Publication number: WO2020073428A1
Application number: PCT/CN2018/116120
Authority: WO
Inventors: 李文锋
Original assignee: 江苏传艺科技股份有限公司
Priority date: 2018-10-09
Filing date: 2018-11-19
Publication date: 2020-04-16
Also published as: CN209266263U

Abstract

A key switch supplemental structure, comprising a bottom plate (1), a conductive circuit board (3), a key cap (4), connecting piece scissors (5), and an elastic key (6). Holes are provided on the bottom plate (1) and the conductive circuit board (3); a fixing structure (2) is formed at the positions of the holes on the bottom plate hole (1) by means of insert molding; the upper surface of the fixing structure (2) is higher than the upper surface of the conductive circuit board (3); the fixing structure (2) is connected and fixed to the bottom plate (1) by means of plastics filled in the holes; the bottom plate (1) is provided with at least two through holes, one side of each through hole is provided with a protrusion or a recess, and the protrusion or the recess can be wrapped in the plastics of the fixing structure (2). In such a bottom plate hole forming mode, the parts of the fixing structure on the upper and lower surfaces of the bottom plate can be connected by means of the plastics in the two through holes, and the protrusions or the recesses on the bottom plate can be wrapped in the plastics, so that the strength of the fixing structure can be enhanced, the stability of the fixing structure can be increased, and the fixing structure is not prone to fall off or turn over from the bottom plate.

Description

Key switch supplementary structure

Technical field

The utility model relates to a keyboard structure, in particular to a supplementary structure of a key switch.

Background technique

The traditional key switch structure is shown in FIG. 5 and includes a key cap, a pair of scissors, an elastic key, a conductive circuit board, a bottom plate, and a fixed structure formed on the bottom plate. A through hole is provided on the bottom plate, and a fixing structure is formed at a corresponding position of the through hole of the bottom plate through insert molding. Among them, the bottom plate has the following opening methods, as shown in Figure 6, Figure 7 and Figure 8. These structural holes have only one through hole on the bottom plate, so the parts of the fixed structure above and below the bottom plate can only be fixed by the plastic connection filled in one hole, and the strength and stability of the fixed structure are poor.

Utility model content

Purpose of the utility model: The purpose of the utility model is to provide a supplementary structure of a key switch with a new type of bottom plate opening, thereby increasing the strength and stability of the fixed structure.

Technical solution: The utility model includes a bottom plate, a conductive circuit board, a key cap, scissors and elastic keys for connecting parts. The bottom plate and the conductive circuit board are provided with holes, and a fixed structure is formed at the position of the bottom plate hole by insert molding. The upper surface of the fixing structure is higher than the upper surface of the conductive circuit board, and the fixing structure is connected and fixed to the bottom plate through the plastic filled in the holes, the bottom plate is provided with at least two through holes, and one side of the through holes is provided There are protrusions or depressions, which can be wrapped in the plastic of the fixed structure.

The through holes are connected through.

The protrusions or depressions are located on the same side of the through hole. The protrusions or depressions can be wrapped in the plastic of the fixed structure, which can enhance the strength of the fixed structure and increase its stability, making it difficult to fall off or flip from the bottom plate .

The protrusions or depressions use a rectangular, trapezoidal or semicircular structure and can be wrapped in the plastic of the fixed structure, which can enhance the strength of the fixed structure and increase its stability, making it difficult to fall off or flip from the bottom plate .

The bottom surface of the fixing structure is flush with the bottom surface of the bottom plate, and does not exceed the lower surface of the bottom plate.

Beneficial effect: The bottom plate opening method provided by the utility model enables the parts of the fixing structure above and below the bottom plate to be connected by plastic in two through holes, and the protrusions or depressions on the bottom plate can be wrapped in plastic, which can be enhanced The strength of the fixed structure increases its stability, making it difficult to fall off or turn over from the bottom plate.

BRIEF DESCRIPTION

Figure 1 is a schematic diagram of the bottom plate opening method of the utility model;

FIG. 2 is a front view of the hole opening mode of the bottom plate shown in FIG. 1;

3 is a schematic diagram of the bottom plate opening method of the utility model;

4 is a schematic diagram of the bottom plate opening method of the utility model;

5 is a schematic diagram of the structure of a traditional key switch;

FIG. 6 is a schematic diagram of the bottom plate opening method in the traditional key switch structure;

7 is a schematic diagram of the bottom plate opening method in the traditional key switch structure;

FIG. 8 is a schematic diagram of a bottom plate opening method in a conventional key switch structure.

detailed description

The utility model will be further described below with reference to the drawings.

The utility model includes a bottom plate 1, a fixing structure 2, a conductive circuit board 3, a key cap 4, a connecting piece scissors 5 and an elastic key 6, a connecting piece scissors 5 and a connecting piece scissors 5 are fixed between the conductive circuit board 3 and the key cap 4 The bottom of the is connected to the bottom plate 1 through the fixing structure 2. The bottom plate 1 is provided with a through hole at a position corresponding to the conductive circuit board 3, and a fixing structure 2 is formed at the corresponding position of the through hole by insert molding. The upper surface of the fixing structure 2 is higher than the upper surface of the conductive circuit board 3, and the fixing structure 2 The bottom plate 1 is connected and fixed by the plastic filled in the hole. The bottom surface of the fixing structure 2 is flush with the bottom surface of the bottom plate 1 and does not exceed the lower surface of the bottom plate 1. The bottom plate 1 is provided with two through-holes penetrating each other, and the same side of the through-hole is provided with protrusions or depressions, which can be wrapped in the plastic of the fixing structure 2.

As shown in FIGS. 1 to 4, this is the opening method of the bottom plate 1 of the present invention. The bottom plate 1 is provided with two through holes, and the same side of the through holes are provided as shown in FIGS. 1 to 3. The protrusions or depressions shown in FIG. 4 can be wrapped in the plastic of the fixing structure 2 so as to ensure that the parts of the fixing structure 2 above and below the bottom plate 1 can pass through the plastic in the two through holes The connection, as shown in FIG. 2, can increase the strength of the fixing structure and increase its stability, making it difficult to fall off or turn over from the bottom plate 1.

The protrusions or depressions shown in FIGS. 1 to 4 can adopt a rectangular, trapezoidal or semicircular structure and can be wrapped in the plastic of the fixed structure 2, which can enhance the strength of the fixed structure 2 and increase its stability, so that It is difficult to fall off or turn over from the bottom plate 1.

Claims

A supplementary structure of key switch, including bottom plate (1), conductive circuit board (3), key cap (4), connecting piece scissors (5) and elastic key (6), the bottom plate (1) and conductive circuit board (3) A hole is provided on the bottom plate (1) to form a fixing structure (2) by insert molding, the upper surface of the fixing structure (2) is higher than the upper surface of the conductive circuit board (3), The fixing structure (2) is connected and fixed to the bottom plate (1) through the plastic filled in the holes, and is characterized in that the bottom plate (1) is provided with at least two through holes, and one side of the through holes is provided with protrusions Or depression, the protrusion or depression can be wrapped in the plastic of the fixing structure (2).
The supplementary structure of the key switch according to claim 1, wherein the through holes are connected through.
The supplementary structure of the key switch according to claim 1, wherein the protrusions or depressions are located on the same side of the through hole.
The supplementary structure of the key switch according to claim 1 or 3, characterized in that the protrusions or recesses adopt a rectangular, trapezoidal or semicircular structure.
The supplementary structure of the key switch according to claim 1, characterized in that the bottom surface of the fixing structure (2) is flush with the bottom surface of the bottom plate (1).