TW202242931A - Protective film of keyboard device, keyboard device and manufacturing method thereof - Google Patents

Abstract

A keyboard device includes a substrate, a protective film, an assembly element and a linkage element. The substrate includes a top surface. The protective film is disposed above the top surface of the substrate. The protective film includes an upper surface, a lower surface and a button area. The lower surface faces the top surface. The button area protrudes from the upper surface to forms a pressing portion on the upper surface and a recessed portion on the bottom surface. The recessed portion has an inner surface, and the inner surface has an insertion groove portion. The assembly element is fixed in the insertion groove portion. The linkage element is located between the substrate and the recessed portion of the protective film, and the linkage element includes a top portion and a bottom portion. The top portion is movably connected to the assembly element, and the bottom portion is movably connected to the substrate.

Description

Keyboard device, protective film and manufacturing method thereof

The invention relates to an input device, in particular to a keyboard device, a protective film and a manufacturing method thereof.

The keyboard is one of the most common input devices for electronic devices at present. For example, computer products (such as notebook computers, desktop computers, or tablet computers) that are often used in daily life, or large-scale industrial control equipment or processing equipment, keyboards are often used. to perform operations or text input.

The common keyboard structure mainly includes multiple keycaps, multiple scissor connectors (Scissor) and the bottom plate. The multiple scissor connectors are used to assemble between the multiple keycaps and the bottom plate respectively, so as to guide the keycaps. The effect of lifting.

However, after multiple keycaps are assembled on the bottom plate through multiple scissor-type connectors, there will still be gaps between the multiple keycaps, causing external dust, debris or liquid to easily enter the interior of the keyboard from the gaps, which is not only difficult to clean but also It is easy to cause line fault damage.

In view of the above, in one embodiment, a keyboard device including a substrate, a protective film, an assembly and a linkage is provided. The substrate includes a top surface. The protective film is arranged above the top surface of the substrate. The protective film includes an upper surface, a lower surface and a key area, the lower surface faces the top surface, and the key area protrudes from the upper surface, so that the upper surface corresponds to a pressing portion and the lower surface forms a corresponding depression. The recess has an inner surface, and the inner surface has a fitting recess. The assembly piece is fitted and fixed in the fitting recess. The linkage is located between the substrate and the recessed part of the protection film, and the linkage includes a top and a bottom, the top is movably connected to the assembly, and the bottom is movably connected to the substrate.

In another embodiment, a protective film of a keyboard device includes a protective film body and an assembly. The protective film body includes an upper surface, a lower surface and a keypad area. The keypad area protrudes from the upper surface so that the upper surface corresponds to a pressing portion and the lower surface corresponds to a concave portion. The concave portion has an inner surface, and the inner surface has a fitting concave portion. The assembly piece is fitted and fixed in the fitting recess.

In another embodiment, a manufacturing method of a keyboard device is provided, which includes forming a key area on a protective film, wherein the protective film includes an upper surface and a lower surface, and the key area protrudes from the upper surface so that the upper surface corresponds to form a pressing portion and is placed on the lower surface. Correspondingly forming a recessed portion, the recessed portion has an inner surface, and the inner surface has a fitting recess;

To sum up, according to the keyboard device and its protective film and manufacturing method according to the embodiments of the present invention, the protective film of the keyboard device is embedded and fixed with the assembly so that the protective film can be directly assembled on the linkage on the substrate through the assembly to achieve Prevent external dust, debris or liquid from entering the interior of the keyboard device, and can omit the setting of multiple keycaps to greatly reduce the cost.

Various embodiments are proposed below for detailed description. However, the embodiments are only used as examples for illustration and will not limit the scope of protection of the present invention. In addition, some components are omitted from the drawings in the embodiments to clearly show the technical characteristics of the present invention. The same reference numbers will be used throughout the drawings to refer to the same or similar elements.

Fig. 1 is a partial perspective view of an embodiment of the keyboard device of the present invention, Fig. 2 is a partially exploded perspective view of the first embodiment of the keyboard device of the present invention, and Fig. 3 is a partial sectional view of the first embodiment of the keyboard device of the present invention. As shown in FIG. 1 , the keyboard device 1 can be applied to various electronic products (such as input devices of desktop computers, notebook computers or other electronic devices) for users to press and operate to input corresponding signals, such as user The keyboard device 1 can be operated to input characters or control corresponding equipment.

As shown in FIGS. 1 to 3 , the keyboard device 1 includes a substrate 10 , a protective film 20 , an assembly 30 and a link 40 . The substrate 10 can be a hard board made of metal (such as iron, aluminum or alloy, etc.) or plastic material, the substrate 10 has a top surface 11, and the protective film 20, the assembly 30 and the linkage 40 are arranged on the top of the substrate 10 above the surface 11 , and the linkage 40 is connected between the protective film 20 and the substrate 10 .

As shown in FIGS. 1 to 3 , the protective film 20 is a seamless film. For example, the protective film 20 can be a leather protective film. For example, the protective film 20 can be a flexible film made of genuine leather or artificial leather. Alternatively, the protective film 20 can also be a plastic protective film, for example, the protective film 20 can be an elastic plastic film made of polyurethane (Polyurethane) or polyvinylchloride (Polyvinylchloride).

As shown in Figures 1 to 3, a circuit board 50 is provided on the top surface 11 of the substrate 10. For example, the circuit board 50 can be a general circuit board (Printed Circuit Board, PCB), a flexible circuit board (Flexible Print Circuit Board, FPCB) Or all kinds of circuit boards such as Rigid-Flex PCB. The protective film 20 covers the substrate 10 and the circuit board 50 to prevent external dust, debris or liquid from entering the interior of the keyboard device 1 , so as to make the keyboard device 1 easy to clean and avoid damage to the circuit board 50 due to faults.

As shown in Figures 1 to 3, the body of the protective film 20 includes an upper surface 21, a lower surface 23 and a plurality of keypads 25, the lower surface 23 faces the top surface 11 of the substrate 10, and the plurality of keypads 25 are integrally formed. For example, the button area 25 can be integrally manufactured by means of injection molding or stamping. As shown in Figures 2 and 3, for one of the keypads 25, the keypad 25 protrudes upwards from the upper surface 21, so that the upper surface 21 corresponds to the pressing portion 22 and the lower surface 23 corresponds to the depression 24, specifically , the pressing portion 22 is a partially protruding area of the protective film 20 for the user to press and operate.

As shown in Figures 1 to 3, the recessed part 24 formed by the keypad 25 of the protective film 20 has an inner surface 241, and the inner surface 241 has a fitting recess 242, and the assembly part 30 is fitted and fixed in the fitting recess 242. For assembling the connecting element 40 , for example, the assembling element 30 can be fitted and fixed in the fitting recess 242 through insert molding.

As shown in FIGS. 2 and 3 , in this embodiment, the linkage 40 is a scissors-type connection and is located between the substrate 10 and the recess 24 of the protective film 20 . The linkage 40 includes a top 41 and a bottom 42 . The top 41 of the link 40 is accommodated in the recessed portion 24 and is movably connected to the assembly part 30 , and the bottom 42 of the linkage part 40 is movably connected to the substrate 10 . In this way, since the protective film 20 is a flexible or elastic film, when the pressing portion 22 of the keypad 25 of the protective film 20 is pressed, the pressing portion 22 can descend toward the substrate 10, and the linkage 40 can guide the pressing The part 22 descends to trigger the circuit board 50 to generate a corresponding signal. When the pressing part 22 is released, it can be returned to its natural non-pressed position by the reset member. In some embodiments, the reset member may be a metal dome, a rubber dome, a metal shrapnel, a spring or a mechanical switch, etc., which are not shown here.

To sum up, the keyboard device 1 of the embodiment of the present invention integrally forms the keypad 25 through the protective film 20 for the user to press and operate, and the inner surface 241 of the recessed part 24 formed by the keypad 25 fits and fixes the assembly 30, so that The protective film 20 can be directly assembled on the linkage 40 on the substrate 10 through the assembly 30 , so as to omit the arrangement of multiple keycaps and greatly reduce the cost.

As shown in FIG. 2 and FIG. 3 , in this embodiment, the fitting recess 242 includes a plurality of inner grooves 243 , and the plurality of inner grooves 243 are spaced apart from each other. The number of inner grooves 243 is four and respectively Adjacent to the four corners of the recessed portion 24 . The assembly 30 includes a plurality of pivotal joints 301, and the multiple pivotal joints 301 are respectively fitted and fixed in a plurality of inner grooves 243, and the top of each pivotal joint 301 has a shape corresponding to the shape of each inner groove 243. The fixing plate 305 is fitted and fixed in the inner groove 243 . The top 41 of the linkage 40 includes a plurality of shafts 411 , and the plurality of shafts 411 are respectively pivotally connected to the plurality of pivotal joints 301 . Thereby, when the pressing portion 22 of the keypad 25 is pressed and descends toward the base plate 10 , the plurality of shafts 411 of the linkage 40 can rotate relative to the assembly 30 to achieve the function of guiding and descending.

As shown in Figures 2 and 3, in this embodiment, the bottom 42 of the linkage 40 has a plurality of fastening ends 421, and the top surface 11 of the base plate 10 is provided with a plurality of hooks 111 (here L-shaped hooks). hook, but it can also be a U-shaped or T-shaped hook), and a plurality of clamping ends 421 are respectively hooked to a plurality of hooks 111, thereby, when the pressing part 22 of the button area 25 is pressed and moves toward When the base plate 10 is lowered, each fastening end 421 of the linking member 40 can slide and rotate relative to the hook 111 to further achieve the function of guiding the lifting.

FIG. 4 is a partial exploded perspective view of the second embodiment of the keyboard device of the present invention, and FIG. 5 is a partial sectional view of the second embodiment of the keyboard device of the present invention. The difference between this embodiment and the embodiment of FIG. 2 and FIG. 3 is at least that the fitting recess 242 of this embodiment only includes a single inner groove 244, wherein the width of the inner groove 244 is at least larger than half the width of the key area 25 For example, the width of the inner groove 244 is 2/3, 3/4, 4/5 or 9/10 of the width of the keypad 25 . The assembly 30 includes a board body 303 and a plurality of pivot joints 302. The board body 303 is fitted and fixed in the inner groove 244 and corresponds to the shape of the inner groove 244. The board body 303 includes an assembly surface 304 facing the substrate. Each pivot portion 302 integrally extends from the assembly surface 304 respectively. The plurality of shafts 411 on the top 41 of the linkage member 40 are also pivotally connected to the plurality of pivotal joints 302 . In this way, since the area of the plate body 303 of the assembly part 30 is close to the size of the keypad 25, the rigidity of the pressing part 22 of the keypad 25 can be further improved, which is more conducive to the user's pressing operation.

6 is a manufacturing flow chart of the first embodiment of the keyboard device of the present invention, FIG. 7 is a manufacturing flow chart of the second embodiment of the keyboard device of the present invention, and FIG. 10 is a flow chart of the steps of an embodiment of the manufacturing method of the keyboard device of the present invention. The hardware structures mentioned below can be disclosed with reference to the embodiments of FIGS. 2 to 7 , but are not intended to limit the present invention.

As shown in FIG. 10 , in step S01 : a keypad 25 is formed on the protective film 20 . Specifically, as shown in Fig. 3, Fig. 4, Fig. 6 and Fig. 7, the protective film 20 includes an upper surface 21 and a lower surface 23. A concave portion 24 is correspondingly formed on the lower surface 23 , the concave portion 24 has an inner surface 241 , and the inner surface 241 has a fitting concave portion 242 . In addition, as shown in FIGS. 3 and 6 , in the first embodiment, the fitting recess 242 includes a plurality of inner grooves 243 , but this is not limited thereto. As shown in FIGS. 5 and 7 , in the second embodiment, the fitting recess 242 may only include a single inner groove 244 .

In some embodiments, the above-mentioned button area 25 and the fitting recess 242 can be integrally formed on the protective film 20, for example, the protective film 20 can be made of elastic plastic such as polyurethane (Polyurethane) or polyvinylchloride (Polyvinylchloride). After the entirety of the 20 is formed by injection molding, the above-mentioned keypad 25 and the fitting recess 242 are integrally formed on the protective film 20 , which has the advantage of not requiring other processing procedures. Alternatively, in other embodiments, the protective film 20 can also be a flat film, the above-mentioned keypad 25 can be formed by stamping the lower surface 23 of the protective film 20, and the fitting concave portion 242 is formed on the inner surface of the concave portion 24. 241 is formed by stamping.

In some embodiments, the above-mentioned protective film 20 can also be a flat film made of genuine leather or artificial leather, and the above-mentioned button area 25 can be formed by punching the lower surface 23 of the protective film 20 to fit into the concave portion 242 Then, the inner surface 241 of the recessed portion 24 is stamped.

As shown in FIG. 10 , step S02 is performed after step S01 : disposing an adhesive layer 245 in the fitting recess 242 . Specifically, as shown in FIG. 6 and FIG. 7 , after the keypad 25 is formed on the protective film 20 , an adhesive layer 245 can be further provided in the fitting recess 242 on the inner surface 241 of the recess 24 through a machine tool. As shown in FIGS. 3 and 6 , in the first embodiment, after the keypad 25 is protruded on the protective film 20 , an adhesive layer 245 is provided in each inner groove 243 of the fitting recess 242 . Alternatively, as shown in FIGS. 5 and 7 , in the second embodiment, after the keypad 25 is formed on the protective film 20 , an adhesive layer 245 is provided in a single inner groove 244 of the fitting recess 242 . In some embodiments, the above-mentioned adhesive layer 245 can be a liquid adhesive layer or a solid adhesive film.

As shown in FIG. 10 , step S03 is performed after step S02 : fitting and fixing the assembly component 30 in the fitting recess 242 by means of insert molding. Specifically, as shown in FIG. 6 and FIG. 7, in step S03, the protective film 20 can be installed into a mold first, and then the liquid plastic is injected into the mold to flow into the fitting recess 242, and the liquid plastic is solidified. Afterwards, the assembly part 30 fitted and fixed in the fitting recess 242 can be formed. For example, as shown in FIG. 3 and FIG. 6 , in the first embodiment, each of the inner grooves 243 of the fitting recess 242 is respectively fitted and fixed with assembly pieces 30 , and each assembly piece 30 includes a pivot portion 301 , A top end of the pivot portion 301 has a fixing plate 305 fitted and fixed in the inner groove 243 . Alternatively, as shown in Figures 5 and 7, in the second embodiment, a single inner groove 244 of the fitting recess 242 is fitted and fixed with an assembly 30, and the assembly 30 includes a plate body 303 and a plurality of pivots. The connection portion 302 and the board body 303 are fitted and fixed in the inner groove 244 , and the plurality of pivotal joints 302 extend integrally from the board body 303 respectively.

In addition, in the embodiment of the present invention, the bonding layer 245 is provided in the fitting recess 242 in step S02, so that the bonding layer 245 is bonded to the assembly 30 and the protective film 20, so as to enhance the positioning effect and resistance of the assembly 30. Pulling force. As shown in Figures 5 and 7, in the second embodiment, the section of the groove 244 inside the fitting recess 242 includes a bottom opening 2441 and a groove top 2442, and the width of the bottom opening 2441 is smaller than the width of the groove top 2442 And be the type that is wide at the top and narrow at the bottom, here, the section of inner groove 244 is dovetail shape, but this is not limited to, the section of inner groove 244 also can be T-shaped or other shape of wide at the top and narrow at the bottom . In this way, when the plate body 303 of the assembly 30 is fitted and fixed in the inner groove 244, the above-mentioned shape with a wide top and a narrow bottom can more effectively prevent the assembly 30 from being forced out of the inner groove 244, making the assembly 30 to obtain a better positioning effect.

As shown in FIG. 10 , step S04 is performed after step S03 : assembling the assembly component 30 on the linkage component 40 on the substrate 10 . Specifically, as shown in FIG. 2 and FIG. 3 , in the first embodiment, after the assembly part 30 is fitted and fixed in the fitting recess 242, the protective film 20 is directly assembled on the substrate with the assembly part 30 10, for example, in this embodiment, the top 41 of the linkage 40 includes a plurality of shafts 411, the assembly 30 includes a plurality of pivotal parts 301, and the protective film 20 can pass through the plurality of pivotal parts. 301 are sleeved and fixed on the outside of a plurality of shaft rods 411, so that the protective film 20 covers the substrate 10 and the circuit board 50, so as to prevent external dust, debris or liquid from entering the interior of the keyboard device 1 to achieve a protective effect, and to make the protection When the pressing part 22 of the keypad 25 of the membrane 20 is pressed, the pressing part 22 can be guided up and down through the linkage 40 to trigger the circuit board 50 to generate a signal. Therefore, the keyboard device 1 of the embodiment of the present invention does not need to manufacture a plurality of keycaps, and then install the plurality of keycaps on each link 40 one by one, so as to greatly reduce the manufacturing cost and manufacturing process.

Similarly, as shown in FIG. 4 and FIG. 5 , in the second embodiment, after the assembly 30 is fitted and fixed in the fitting recess 242 , the protective film 20 is also directly assembled on the substrate 10 with the assembly 30 The connecting member 40 makes the protection film 20 cover the substrate 10 and the circuit board 50 , which will not be repeated here.

Fig. 8 is another manufacturing flowchart of the first embodiment of the keyboard device of the present invention, Fig. 9 is another manufacturing flowchart of the second embodiment of the keyboard device of the present invention, and Fig. 11 is another embodiment of the manufacturing method of the keyboard device of the present invention The flow chart of the steps. As shown in Figure 11, the difference between this embodiment and the above-mentioned embodiment of Figure 10 is that this embodiment directly proceeds to Step S03 after Step S01 and omits Step S02, specifically, please refer to Figure 8 and Figure 9 In this embodiment, after forming the button area 25 and the fitting recess 242 on the protective film 20, the assembly part 30 is fitted and fixed in the fitting recess 242 by insert molding, and the subsequent protective film 20 can be assembled The component 30 is directly assembled on the linking component 40 on the substrate 10 (as shown in step S04 of FIG. 11 , FIG. 2 and FIG. 4 ).

In addition, the sections of the inner grooves 243 of the fitting recesses 242 in the first embodiment of the above-mentioned Fig. 2, Fig. 3 and Fig. 8 can be wide at the top and narrow at the bottom. The section of the groove 244 in the fitting recess 242 in the second embodiment can also be wide at the top and narrow at the bottom. As shown in FIG. 9 , taking the second embodiment as an example, the assembly 30 includes a plate body 303 and a plurality of pivot joints 302 , and the plurality of pivot joints 302 integrally extend from the assembly surface 304 of the plate body 303 , and fit into the recessed portion. 242 includes a single inner groove 244, and the section of the inner groove 244 includes a bottom opening 2441 and a groove top 2442, and the width of the bottom opening 2441 is smaller than the width of the groove top 2442 so that the section of the inner groove 244 is wide. Narrow type. For example, in this embodiment, the cross-section of the inner groove 244 is dovetail-shaped, but this is not limited. The cross-section of the inner groove 244 can also be T-shaped or other shapes that are wide at the top and narrow at the bottom. In this way, when the plate body 303 of the assembly 30 is fitted and fixed in the inner groove 244, the above-mentioned shape with a wide top and a narrow bottom can effectively prevent the assembly 30 from being separated from the inner groove 244 under force, making the assembly 30 to obtain a better positioning effect.

To sum up, according to the keyboard device and its protective film and manufacturing method according to the embodiments of the present invention, the protective film of the keyboard device is embedded and fixed with the assembly so that the protective film can be directly assembled on the linkage on the substrate through the assembly to achieve Prevent external dust, debris or liquid from entering the interior of the keyboard device, and can omit the setting of multiple keycaps to greatly reduce the cost.

Although the technical content of the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any modification and modification made by those skilled in the art without departing from the spirit of the present invention should be covered by the present invention. Therefore, the scope of protection of the present invention should be defined by the scope of the appended patent application.

1: Keyboard device 10: Substrate 11: top surface 111: hook 20: Protective film 21: upper surface 22: Pressing part 23: lower surface 24: Depressed part 241: inner surface 242:Fitting concave part 243,244: inner groove 2441: Bottom opening 2442: groove top 245: Next layer 25: Button area 30: Assembly parts 301,302: Pivot joint 303: plate body 304: Assembly surface 305: fixed plate 40: Linkage 41: top 411: shaft 42: bottom 421:Clamping end 50: circuit board S01～S04: Steps

[Fig. 1] is a partial perspective view of an embodiment of the keyboard device of the present invention. [Fig. 2] is a partial exploded perspective view of the first embodiment of the keyboard device of the present invention. [Fig. 3] is a partial sectional view of the first embodiment of the keyboard device of the present invention. [Fig. 4] is a partially exploded perspective view of the second embodiment of the keyboard device of the present invention. [Fig. 5] is a partial sectional view of the second embodiment of the keyboard device of the present invention. [Fig. 6] is the manufacturing flow chart of the first embodiment of the keyboard device of the present invention. [Fig. 7] is the manufacturing flow chart of the second embodiment of the keyboard device of the present invention. [Fig. 8] is another manufacturing flow chart of the first embodiment of the keyboard device of the present invention. [Fig. 9] is another manufacturing flow chart of the second embodiment of the keyboard device of the present invention. [Fig. 10] is a flow chart of the steps of an embodiment of the manufacturing method of the keyboard device of the present invention. [Fig. 11] is a flow chart of the steps of another embodiment of the manufacturing method of the keyboard device of the present invention.

10: Substrate

11: top surface

111: hook

20: Protective film

24: Depressed part

241: inner surface

243: inner groove

30: Assembly parts

301: pivot joint

305: fixed plate

40: Linkage

41: top

411: shaft

50: circuit board

Claims (18)

A keyboard device, comprising: a substrate including a top surface; A protective film, arranged above the top surface of the substrate, the protective film includes an upper surface, a lower surface and a keypad, the lower surface faces the top surface, and the keypad protrudes from the upper surface so that the upper surface corresponds to forming a pressing portion and correspondingly forming a recessed portion on the lower surface, the recessed portion has an inner surface, and the inner surface has a fitting recess; a set of fittings fitted and fixed in the fitting recess; and A linkage, located between the substrate and the recessed portion of the protective film, and the linkage includes a top and a bottom, the top is movably connected to the assembly, and the bottom is movably connected to the substrate . The keyboard device according to claim 1, wherein the fitting recess includes a plurality of inner grooves, and the inner grooves are spaced apart from each other, and the assembly includes a plurality of pivot joints, and the pivot joints are fitted respectively Fixed in the inner grooves, the top of the linkage includes a plurality of shafts, and the shafts are pivotally connected in the pivotal parts. The keyboard device according to claim 1, wherein the fitting recess includes an inner groove, the assembly includes a plate and a plurality of pivotal parts, the plate is fitted and fixed in the inner groove, the The plate body includes an assembling surface facing the base plate, and the pivot joints integrally extend from the assembling surface. The top of the linkage member includes a plurality of shafts, and the shafts are pivotally connected in the pivot joints. The keyboard device according to claim 1, wherein an adhesive layer is further provided between the fitting recess and the assembly. The keyboard device as claimed in claim 1, wherein the fitting recess includes an inner groove, a section of the inner groove includes a bottom opening and a groove top, and the width of the bottom opening is smaller than the width of the groove top. The keyboard device as claimed in claim 1, wherein the protective film is a leather protective film or a plastic protective film. A protective film for a keyboard device, comprising: A protective film body, including an upper surface, a lower surface and a keypad area, the keypad area protrudes from the upper surface, so that a pressing part is formed on the upper surface and a recessed part is formed on the lower surface, and the recessed part has a an inner surface having a fitting recess; and A set of connectors is fitted and fixed in the fitting recess. The protective film of the keyboard device according to claim 7, wherein the fitting recess includes a plurality of inner grooves, and the inner grooves are spaced apart from each other, and the assembly includes a plurality of pivot joints, and the pivot joints Do not fit and fix in these inner grooves. The protective film of the keyboard device according to claim 7, wherein the fitting recess includes an inner groove, the assembly includes a board and a plurality of pivotal parts, and the board is fitted and fixed in the inner groove Among them, the pivot joints integrally extend from the surface of the board. The protective film of the keyboard device according to claim 7, wherein an adhesive layer is provided between the fitting recess and the assembly. The protective film of the keyboard device according to claim 7, wherein the fitting recess includes an inner groove, the cross section of the inner groove includes a bottom opening and a groove top, and the width of the bottom opening is smaller than the groove top width. The protective film of the keyboard device according to claim 7, wherein the main body of the protective film is a leather protective film or a plastic protective film. A method of manufacturing a keyboard device, comprising: (a) Forming a key area on a protective film, wherein the protective film includes an upper surface and a lower surface, the key area protrudes from the upper surface, so that the upper surface corresponds to form a pressing portion and the lower surface corresponds to a a recessed portion having an inner surface having a fitting recess; and (b) Fitting and fixing a set of connectors in the fitting recess by means of insert molding. The manufacturing method of the keyboard device according to claim 13, wherein the keypad and the fitting recess in the step (a) are integrally formed on the protective film by injection molding. The manufacturing method of the keyboard device as described in Claim 13, wherein the step (a) further includes: punching the inner surface of the recessed portion to form the fitting recessed portion. The manufacturing method of the keyboard device according to claim 13, further comprising: setting an adhesive layer in the fitting recess before the step (b). The manufacturing method of the keyboard device as described in Claim 13, further comprising: assembling the component into a link on a substrate after the step (b). The manufacturing method of the keyboard device according to claim 17, wherein the assembly includes at least one pivotal portion, the linkage includes at least one shaft, and the at least one shaft is pivotally connected in the at least one pivotal portion.

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