Mechanical keyboard with under-shaft composite pad

Abstract

The utility model discloses a mechanical keyboard with an under-shaft composite pad, and belongs to the technical field of mechanical keyboards. Comprising a positioning plate and a PCB, the positioning plate is provided with a key hole and is provided with a shaft body unit with a positioning rod and an electrode pin, and the PCB is provided with a shaft body connecting seat. An under-shaft composite pad is clamped between the positioning plate and the PCB, the under-shaft composite pad comprises a flexible pad layer and a sound absorption pad which are overlapped and glued or welded, and a plurality of avoiding hole groups are synchronously punched. The receding hole set is provided with a center rod hole, an electrode penetrating hole, a lamp bead receding hole, a positioning hole and the like, and electric connection and assembly positioning of the shaft body unit and the PCB are achieved. According to the keyboard, the assembly process is simplified, the hole site precision is improved through synchronous blanking of the under-shaft composite pad, and the defective rate is reduced.

Description

A mechanical keyboard with under-axis composite pad Technical Field

[0001] This utility model relates to the field of mechanical keyboard technology, and in particular to a mechanical keyboard with a composite pad under the axis. Background Technology

[0002] In the existing custom mechanical keyboard structure, as shown in Figure 1, a core cotton 3, a switch underpad 6, and a sound enhancement pad 7 are sandwiched between the positioning plate 2 and the PCB board 5. During installation, the core cotton 3, switch underpad 6, and sound enhancement pad 7 need to be stacked on the upper surface of the PCB board 5 from top to bottom. Finally, the positioning plate 2 is installed, and the switches on the positioning plate 2 are fixed by passing through the core cotton 3, switch underpad 6, and sound enhancement pad 7 and connecting them to the switch connector on the PCB board 5.

[0003] This mechanical keyboard structure with a voice effect pad requires stacking and assembling three pad layers, which is cumbersome. In addition, the holes of the switch pad 6 and the voice effect pad 7 need to be punched separately, which is complicated and requires high precision. It is easy to have poor alignment of the upper and lower holes. Therefore, it is necessary to improve it. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a mechanical keyboard with a composite pad under the shaft, which reduces assembly difficulty, lowers the manufacturing difficulty and defect rate of the flexible pad layer, and improves the hole accuracy of the flexible pad layer.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a mechanical keyboard with an under-axis composite pad, comprising a positioning plate and a PCB board. The positioning plate has multiple key holes, each key hole housing a switch unit. The bottom of the switch unit is provided with a positioning rod and an electrode pin. The surface of the PCB board is provided with multiple switch connecting seats, each with a socket and an electrical contact hole. The positioning rod of each switch unit is inserted into the corresponding socket and connected to the electrical contact hole via the electrode pin, thereby achieving electrical connection between the switch unit and the PCB board. An under-axis composite pad is sandwiched between the positioning plate and the PCB board. The under-axis composite pad comprises a flexible pad layer and a sound-absorbing pad that are overlapped and integrated into one unit. The under-axis composite pad is die-cut in one process to create corresponding clearance holes that penetrate the under-axis composite pad and are vertically aligned with each positioning rod.

[0006] In a further technical solution, the sound-absorbing pad is fixed to the lower surface of the composite pad under the shaft by adhesive bonding or hot melting.

[0007] In a further technical solution, the thickness of the under-shaft composite pad is 1mm-5mm; the flexible pad layer includes IXPE pad or rubber pad; the sound-absorbing pad includes PET membrane, PEF membrane or BOPP membrane.

[0008] In a further technical solution, each clearance hole includes a central rod hole, a lamp bead clearance hole, a positioning hole, and an electrode through hole. The central rod hole is centrally located, and the lamp bead clearance hole, positioning hole, and electrode through hole are respectively formed on the side of the central rod hole. The positioning rod passes through the central rod hole, and the electrode pin passes through the electrode through hole. The upper surface of the shaft connecting seat is provided with a lamp bead unit, and the lamp bead unit is vertically aligned with the lamp bead clearance hole.

[0009] In a further technical solution, a core cotton layer is sandwiched between the positioning plate and the PCB board. The core cotton layer is positioned above the composite pad under the shaft. The core cotton layer has shaft holes that correspond one-to-one with each shaft unit. Each clearance hole is aligned vertically with the corresponding shaft hole. Each shaft unit passes through the corresponding shaft hole and abuts against the upper surface of the composite pad under the shaft.

[0010] In a further technical solution, the core cotton layer is fixedly bonded to the upper surface of the composite pad under the shaft by adhesive bonding or hot melting to form a three-layer composite pad with an integrated structure. Only one three-layer composite pad with an integrated structure is set between the positioning plate and the PCB board. The three-layer composite pad is die-cut to punch out the corresponding clearance holes in one die-cutting process.

[0011] In a further technical solution, the composite pad is also provided with clearance openings and planetary shaft clearance openings.

[0012] In a further technical solution, the two sides of the switch unit are provided with undercut parts, the switch unit is inserted into the corresponding keyhole, and is connected to the positioning plate by the undercut parts; the top of the switch unit is connected with a keycap.

[0013] A further technical solution also includes an upper shell and a lower shell that are connected vertically, with the PCB board fixedly installed in the cavity of the lower shell; the side of the positioning plate is provided with multiple connecting parts, which are fixed to the upper shell by bolts.

[0014] The advantages of this invention compared to the prior art after adopting the above structure are:

[0015] 1. The flexible pad and the sound-absorbing pad are overlapped and connected by adhesive or fusion to form the under-shaft composite pad. During assembly, the core cotton and the under-shaft composite pad are simply sandwiched between the positioning plate and the PCB board in sequence to complete the assembly. This greatly simplifies the assembly process, significantly improves assembly efficiency, and saves assembly time and labor costs.

[0016] 2. Users can choose flexible pads and sound-absorbing pads of different materials according to their actual needs and usage scenarios to meet different usage requirements, thereby improving the applicability and versatility of the product.

[0017] 3. By integrating the flexible pad and the sound-absorbing pad into a composite pad under the shaft, only one punching process is required during hole punching, which can ensure the alignment accuracy of the holes of the flexible pad and the sound-absorbing pad and reduce the defect rate. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 is an exploded view of the existing custom mechanical keyboard structure.

[0020] Figure 2 is an exploded view of the mechanical keyboard structure in this utility model.

[0021] Figure 3 is an installation structure diagram of the shaft unit in this utility model.

[0022] Figure 4 is a schematic diagram of the structure of the under-shaft composite pad in this utility model. Detailed Implementation

[0023] The following are merely preferred embodiments of the present invention and do not limit the scope of protection of the present invention.

[0024] As shown in Figures 2 to 4, a mechanical keyboard with an under-axis composite pad includes a positioning plate 2 and a PCB board 5. The positioning plate 2 has multiple key holes 20, and each key hole 20 is equipped with an axis unit 1. The bottom of the axis unit 1 is provided with a positioning rod 12 and an electrode pin 13. The surface of the PCB board 5 is provided with multiple axis connecting seats 51. The axis connecting seats 51 are provided with insertion holes and electrical contact holes. The positioning rod 12 of each axis unit 1 is inserted into the corresponding insertion hole and is inserted into the electrical contact hole through the electrode pin 13 to realize the electrical connection between the axis unit 1 and the PCB board 5. An under-axis composite pad 4 is sandwiched between the positioning plate 2 and the PCB board 5. The under-axis composite pad 4 includes a flexible pad layer 41 that is stacked and composited into one piece and a sound-absorbing pad 42. The under-axis composite pad 4 is die-cut in one process to punch out corresponding clearance holes 43 that pass through the under-axis composite pad 4 and are vertically aligned with each axis unit 1. The positioning rod 12 and the electrode pin 13 pass through the clearance holes 43 and are connected to the PCB board 5.

[0025] The flexible pad 41 and the sound-absorbing pad 42 are overlapped and connected by adhesive bonding or welding to form the under-shaft composite pad 4. During assembly, the core cotton layer 3 and the under-shaft composite pad 4 are sandwiched between the positioning plate 2 and the PCB board 5 in sequence to complete the assembly, which greatly simplifies the assembly process, significantly improves the assembly efficiency, and saves assembly time and labor costs.

[0026] By integrating the flexible pad 41 and the sound-absorbing pad 42 into the under-shaft composite pad 4, only one punching process is required during hole punching, which can ensure the alignment accuracy of the holes of the flexible pad 41 and the sound-absorbing pad 42 and reduce the defect rate.

[0027] Specifically, the sound-absorbing pad 42 is fixedly bonded to the lower surface of the composite pad 4 under the shaft by adhesive bonding or hot melting.

[0028] Specifically, the thickness of the under-shaft composite pad 4 is 2.5 mm; the flexible pad layer 41 includes an IXPE pad, or a rubber pad; the sound-absorbing pad 42 includes a PET film, or a PEF film or a BOPP film.

[0029] Users can choose flexible pads 41 and sound-absorbing pads 42 made of different materials according to their actual needs and usage scenarios to meet different usage requirements, thereby improving the applicability and versatility of the product.

[0030] Specifically, each clearance hole 43 includes a central rod hole 431, a lamp bead clearance hole 433, a positioning hole 434, and an electrode through hole 432. The central rod hole 431 is centrally located. The lamp bead clearance hole 433, the positioning hole 434, and the electrode through hole 432 are respectively formed on the side of the central rod hole 431. The positioning rod 12 passes through the central rod hole 431, and the electrode pin 13 passes through the electrode through hole 432. The upper surface of the shaft connecting seat 51 is provided with a lamp bead unit, and the lamp bead unit is vertically aligned with the lamp bead clearance hole 433.

[0031] Specifically, a core cotton layer 3 is sandwiched between the positioning plate 2 and the PCB board 5. The core cotton layer 3 is positioned above the under-shaft composite pad 4. The core cotton layer 3 has shaft holes that correspond one-to-one with each shaft unit 1. Each clearance hole 43 is aligned vertically with the corresponding shaft hole. Each shaft unit 1 passes through the corresponding shaft hole and abuts against the upper surface of the under-shaft composite pad 4.

[0032] Specifically, the composite pad 4 also has a clearance opening 401 and a planetary shaft clearance opening 402.

[0033] Specifically, the two sides of the switch unit 1 are provided with undercut parts 10, the switch unit 1 is inserted into the corresponding keyhole 20, and is snapped to the positioning plate 2 through the undercut parts 10; the top of the switch unit 1 is connected to the keycap 11.

[0034] Specifically, it also includes an upper shell 91 and a lower shell 92 connected vertically, with the PCB board 5 fixedly installed in the cavity of the lower shell 92; the side of the positioning plate 2 is provided with multiple connecting parts, which are fixed to the upper shell 91 by bolts.

[0035] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A mechanical keyboard with a composite pad under the axis, comprising a positioning plate (2) and a PCB board (5), wherein the positioning plate (2) has multiple key holes (20), each key hole (20) is fitted with an axis unit (1), the bottom of the axis unit (1) is provided with a positioning rod (12) and an electrode pin (13); the surface of the PCB board (5) is provided with multiple axis connecting seats (51), the axis connecting seats (51) are provided with insertion holes and electrical contact holes, the positioning rod (12) of each axis unit (1) is respectively inserted into the corresponding insertion hole, and is inserted into the electrical contact hole through the electrode pin (13), thereby realizing the electrical connection between the axis unit (1) and the PCB board (5), characterized in that: A shaft-mounted composite pad (4) is sandwiched between the positioning plate (2) and the PCB board (5). The shaft-mounted composite pad (4) includes a flexible pad layer (41) that is stacked on top of each other and composited into one piece, and a sound-absorbing pad (42). The shaft-mounted composite pad (4) is die-cut in one process to create corresponding clearance holes (43) that pass through the shaft-mounted composite pad (4) and are vertically aligned with each shaft unit (1). The positioning rod (12) and the electrode pin (13) pass through the clearance holes (43) and are connected to the PCB board (5).

2. A mechanical keyboard with an under-axis composite pad according to claim 1, characterized in that: The sound-absorbing pad (42) is fixedly bonded to the lower surface of the under-shaft composite pad (4) by adhesive bonding or hot-melt bonding.

3. The mechanical keyboard with sub-axle compound pads of claim 2, wherein: The thickness of the under-shaft composite pad (4) is 1mm-5mm; the flexible pad layer (41) includes an IXPE pad or a rubber pad; the sound-absorbing pad (42) includes a PET film, a PEF film or a BOPP film.

4. A mechanical keyboard with an under-axis composite pad according to claim 3, characterized in that: Each of the aforementioned clearance holes (43) includes a central rod hole (431), a lamp bead clearance hole (433), a positioning hole (434), and an electrode through hole (432). The central rod hole (431) is centrally located. The lamp bead clearance hole (433), the positioning hole (434), and the electrode through hole (432) are respectively formed on the side of the central rod hole (431). The positioning rod (12) passes through the central rod hole (431), and the electrode pin (13) passes through the electrode through hole (432). The upper surface of the shaft connecting seat (51) is provided with a lamp bead unit, and the lamp bead unit is vertically aligned with the lamp bead clearance hole (433).

5. A mechanical keyboard with an under-axis composite pad according to claim 4, characterized in that: A core cotton layer (3) is sandwiched between the positioning plate (2) and the PCB board (5). The core cotton layer (3) is positioned above the under-shaft composite pad (4). The core cotton layer (3) has shaft holes that correspond one-to-one with each shaft unit (1). Each clearance hole (43) is aligned vertically with the corresponding shaft hole. Each shaft unit (1) passes through the corresponding shaft hole and abuts against the upper surface of the under-shaft composite pad (4).

6. The mechanical keyboard with sub-axle compound pads of claim 1, wherein: The composite pad (4) is also provided with a clearance opening (401) and a planetary shaft clearance opening (402).

7. The mechanical keyboard with sub-axle compound pads of claim 1, wherein: The shaft unit (1) has a buckle (10) on both sides. The shaft unit (1) is inserted into the corresponding key hole (20) and is snapped to the positioning plate (2) through the buckle (10). A keycap (11) is connected to the top of the shaft unit (1).

8. The mechanical keyboard with sub-axle compound pads of claim 1, wherein: It also includes an upper shell (91) and a lower shell (92) connected vertically, with the PCB board (5) fixedly installed in the cavity of the lower shell (92); the side of the positioning plate (2) is provided with multiple connecting parts, which are fixed to the upper shell (91) by bolts.

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