CN222637111U

CN222637111U - Key-press

Info

Publication number: CN222637111U
Application number: CN202421207868.4U
Authority: CN
Inventors: 邓奎霖; 蔡柏伟; 蔡温育
Original assignee: Chongqing Dafang Electronics Co ltd; Darfon Electronics Corp
Current assignee: Chongqing Dafang Electronics Co ltd; Darfon Electronics Corp
Priority date: 2024-05-30
Filing date: 2024-05-30
Publication date: 2025-03-18
Anticipated expiration: 2034-05-30

Abstract

The utility model discloses a key, which comprises a key cap, a lifting supporting mechanism and a bottom plate. The lifting support mechanism is arranged below the keycap and comprises a first support piece and a second support piece which are mutually crossed and pivoted and movably connected with the keycap. The pivot end of the first support member projects laterally to form a pivot axis and the slide shaft end of the second support member projects laterally to slide the shaft. The positions of the bottom plate corresponding to the pivot end and the sliding shaft end form a first hole breaking structure and a second hole breaking structure respectively. The base plate bridges the first aperture structure to form a first arch bridge structure having a first gap, and the base plate bridges the second aperture structure to form a second arch bridge structure having a second gap. The pivot shaft and the sliding shaft are movably arranged in the first arch bridge structure and the second arch bridge structure in a penetrating mode through the first notch and the second notch respectively, so that the keycap can move up and down relative to the bottom plate through the lifting supporting mechanism, and the structural anti-deformation capacity of the bottom plate when the lifting supporting mechanism is connected is improved.

Description

Key-press

Technical Field

The present utility model relates to a key, and more particularly, to a key with an arch bridge structure formed on a base plate to connect a lifting support mechanism.

Background

In the current use habit of personal computers, a keyboard is used to input characters, symbols or numbers, and is one of the indispensable input devices. Moreover, consumer electronic products in daily life or large processing equipment used in industry are provided with a key structure as an input device to operate the electronic products and the processing equipment.

Key structures used in notebook computers often use lifting support mechanisms (e.g., scissor supports) to provide key cap support and lifting mechanisms. The key cap and the bottom plate are provided with structures connected with the lifting support mechanism, and in the structural design of the bottom plate, in order to save space, the structures connected with the lifting support mechanism are usually formed on the bottom plate, so that the lifting support mechanism can be movably connected to the bottom plate. In the prior art, the bottom plate is generally formed by stamping a metal plate to form a bent hook structure on the side wall of the bottom plate break Kong Shanbian, however, when the lifting support mechanism needs to be disassembled, the bent hook structure will be pulled and the bending part is easy to deform.

Disclosure of utility model

The utility model aims to provide a key for forming an arch bridge structure on a bottom plate to be connected with a lifting support mechanism so as to improve the structural deformation resistance of the bottom plate when the bottom plate is connected with the lifting support mechanism.

In order to achieve the above-mentioned objective, the present utility model provides a key comprising a key cap, a lifting support mechanism and a bottom plate, wherein the lifting support mechanism is disposed under the key cap, the lifting support mechanism comprises a first support member and a second support member, the first support member is movably connected to the key cap, the first support member has a pivot end, at least one end of the pivot end protrudes laterally to form a pivot axis, the second support member is disposed in the first support member and is pivoted with the first support member in a crossing manner, the second support member is movably connected to the key cap, the second support member has a sliding shaft end, at least one end of the sliding shaft end protrudes laterally to form a sliding shaft, the bottom plate is formed with at least one first hole breaking structure corresponding to the pivot end, at least one second hole breaking structure is formed at a position corresponding to the sliding shaft end, the bottom plate bridges over a first outer side hole wall and a first inner side hole wall opposite to each other in the at least one first hole breaking structure to form a first arch bridge structure, the bottom plate bridges over the at least one second hole wall and the first inner side hole wall opposite to the first hole wall, the bottom plate is formed with a first arch bridge structure over the first hole wall and a second hole opening structure through the pivot hole, the second hole wall and the first hole wall and the second hole wall is formed over the first hole structure and the second hole structure through the first hole bridge.

As an optional technical solution, the first arch bridge structure has a flat plate portion, and a first bridging arm portion and a second bridging arm portion respectively formed by bending from the first outer side hole wall and the first inner side hole wall, and the flat plate portion is connected between the first bridging arm portion and the second bridging arm portion.

As an alternative solution, at least one side edge of the first bridging arm portion extends outwards along the first outer hole wall to form a rectangular reinforcing sheet area, or tapers outwards to form a bevel reinforcing sheet area.

Alternatively, the section of the pivot shaft, which is abutted against the first arch bridge structure, is provided with a round-corner guiding structure to guide the pivot shaft to rotate in the first arch bridge structure, or the section of the slide shaft, which is abutted against the second arch bridge structure, is provided with a round-corner guiding structure to guide the slide shaft to slide and rotate in the second arch bridge structure.

As an alternative technical scheme, a third hole breaking structure is further formed on the bottom plate at a position corresponding to the inner side of the at least one first hole breaking structure, a blocking piece is formed by bending the hole wall of at least one side of the third hole breaking structure, and the blocking piece stops the end part of the pivot shaft so as to limit the pivot shaft to rotate in the first arch bridge structure.

As an alternative solution, the bridging direction of the first arch bridge structure is parallel to the axial direction of the pivot shaft, and the bridging direction of the second arch bridge structure is parallel to the axial direction of the sliding shaft.

As an alternative solution, the bridging direction of the first arch bridge structure is perpendicular to the axial direction of the pivot shaft, and the bridging direction of the second arch bridge structure is perpendicular to the axial direction of the sliding shaft.

Alternatively, the first notch has a notch depth in a longitudinal direction perpendicular to the pivot axis that is smaller than the notch depth of the second notch in the longitudinal direction.

The key also comprises a thin film circuit board arranged on the bottom plate, wherein when the key cap is pressed, a switch corresponding to the key on the thin film circuit board is triggered.

As an alternative technical scheme, the key further comprises an elastomer, the elastomer is arranged between the key cap and the thin film circuit board, and the elastomer is used for providing elastic restoring force to the key cap and triggering the switch when the key cap is pressed.

In summary, compared with the single-sided hook design that adopts a stamped metal plate to form a bent hook structure only on the side wall of the bottom plate hole Kong Shanbian in the prior art, the present utility model adopts a double-sided butt-joint arch bridge design that bridges the opposite inner and outer side walls of the bottom plate hole structure to form an arch bridge structure with a notch, so as to improve the structural deformation resistance of the bottom plate when the bottom plate is connected to the lifting support mechanism, thereby effectively solving the problem of deformation caused by structural pulling or pushing during the disassembly operation of the bottom plate and the lifting support mechanism.

The utility model will now be described in more detail with reference to the drawings and specific examples, which are not intended to limit the utility model thereto.

Drawings

Fig. 1 is a schematic perspective view of a keyboard according to an embodiment of the utility model;

FIG. 2 is an exploded view of the key of FIG. 1;

FIG. 3 is an enlarged schematic view of a portion of the first support of FIG. 2 attached to a base plate;

FIG. 4 is an enlarged schematic view of a portion of the second support of FIG. 2 attached to a base plate;

FIG. 5 is an enlarged schematic view of a portion of a base plate according to another embodiment of the present utility model;

FIG. 6 is an enlarged schematic view of a portion of a base plate according to yet another embodiment of the present utility model;

Fig. 7 is an enlarged schematic view of a base plate according to an embodiment of the utility model.

Detailed Description

For a further understanding of the objects, construction, features and functions of the utility model, reference should be made to the following detailed description of the preferred embodiments.

Fig. 1 is a schematic perspective view of a keyboard 1 according to an embodiment of the utility model. As shown in fig. 1, the keyboard 1 includes a plurality of keys 10 and a bottom plate 12, wherein the plurality of keys 10 are disposed on the bottom plate 12 for being pressed by a user to perform a function desired to be input by the user. The keyboard 1 is generally applied to a personal computer, but not limited thereto, for example, the keyboard 1 may also be applied to a portable electronic device (such as a notebook computer or a folding keyboard) having an opening and closing mechanism composed of an upper cover and a lower housing.

The bottom plate connection design proposed in the present utility model can be applied to at least one of the plurality of keys 10, the number of which can be determined according to the actual assembly and manufacturing requirements of the keyboard 1, and for simplicity of description, the following description will be made with respect to the keys 10 having the bottom plate connection design, and for other structural designs employing the same keys 10, the description will be omitted herein. Referring to fig. 2, 3 and 4, fig. 2 is an exploded view of the key 10 of fig. 1, fig. 3 is an enlarged view of a portion of the first support member 18 of fig. 2 connected to the base plate 12, and fig. 4 is an enlarged view of a portion of the second support member 20 of fig. 2 connected to the base plate 12, wherein the key 10 includes the base plate 12, the key cap 14 and the lifting support mechanism 16 as can be seen from fig. 2, 3 and 4. The lifting support mechanism 16 is disposed under the keycap 14, and the lifting support mechanism 16 includes a first support member 18 and a second support member 20, where the first support member 18 is movably connected to the keycap 14 and has a pivot end 22, at least one end of the pivot end 22 protrudes laterally to form a pivot shaft 24 (as shown in fig. 2, both ends of the pivot end 22 protrude to form the pivot shaft 24, but not limited thereto), the second support member 20 is disposed in the first support member 18 and is pivoted to the first support member 18 in a crossing manner, the second support member 20 is movably connected to the keycap 14 and has a slide shaft end 26, at least one end of the slide shaft end 26 protrudes laterally to form a slide shaft 28 (as shown in fig. 2, both ends of the slide shaft end 26 protrude to form the slide shaft 28, but not limited thereto), and the utility model also can employ a one-sided slide shaft design. At least one first hole-breaking structure 30 and at least one second hole-breaking structure 32 are formed at positions of the base plate 12 corresponding to the pivot end 22 and the slide end 26 (as shown in fig. 2, the first hole-breaking structure 30 and the second hole-breaking structure 32 are two, but not limited thereto, the number of which is determined by the connection configuration of the lifting support mechanism 16 and the base plate 12), the base plate 12 bridges the first outer hole wall W1 and the first inner hole wall W2 opposite to each other in the first hole-breaking structure 30 to form a first arch bridge structure 34 (for example, but not limited thereto), and the base plate 12 bridges the second outer hole wall W3 and the second inner hole wall W4 opposite to each other in the second hole-breaking structure 32 to form a second arch bridge structure 36 (for example, but not limited thereto), the first arch bridge structure 34 has a first notch 38 formed at positions of the first arch bridge structure 34 corresponding to the pivot shaft 24, and the second arch bridge structure 36 has a second notch 40 formed at positions of the slide shaft 28. In more detail, in this embodiment, the bridging directions B of the first arch bridge structure 34 and the second arch bridge structure 36 may be preferably parallel to the axial direction S1 of the pivot shaft 24 and the axial direction S2 of the sliding shaft 28, and the first arch bridge structure 34 may preferably have a flat plate portion 42 and a first bridging arm portion 44 and a second bridging arm portion 46 respectively bent from the first outer side wall W1 and the first inner side wall W2, and the flat plate portion 42 is connected between the first bridging arm portion 44 and the second bridging arm portion 46.

In addition, in order to guide the first support 18 and the second support 20 to move smoothly on the base plate 12, as shown in fig. 2, 3 and 4, the section of the pivot shaft 24 abutting against the first arch bridge structure 34 is formed with a rounded corner structure 48, and the section of the sliding shaft 28 abutting against the second arch bridge structure 36 is formed with a rounded corner structure 50, so as to guide the pivot shaft 24 and the sliding shaft 28 to move smoothly in the first arch bridge structure 34 and the second arch bridge structure 36 of the base plate 12 respectively without causing structural collision and interference, and further, the depth of the first notch 38 in the longitudinal direction L of the vertical pivot shaft 24 is smaller than the depth of the second notch 40 in the longitudinal direction L, and the position of the base plate 12 corresponding to the inner side of the first arch bridge structure 30 is also formed with a third arch bridge structure 52, and the hole wall W5 on at least one side of the third arch bridge structure 52 is bent from the third arch bridge structure 52 (as shown in fig. 2, the hole wall W5 on both sides of the third arch bridge structure 52 is respectively formed with a blocking piece 54, but not bent to be blocked by the first notch 38 in the longitudinal direction of the longitudinal direction L, so as to prevent the sliding shaft 28 from being accidentally pressed off the pivot shaft 28 in the longitudinal direction of the first arch bridge structure 24 and the pivot shaft 24 in the longitudinal direction 24, so that the sliding shaft is not blocked by the pivot shaft 28 and stably moving in the pivot shaft 24 in the longitudinal direction.

It should be noted that, as shown in fig. 2, the key 10 may further include a thin film circuit board 56, the thin film circuit board 56 may be disposed on the base plate 12, and when the key cap 14 is pressed to the pressing position, a switch (not shown) on the thin film circuit board 56 may be correspondingly triggered by a triggering portion (not shown), so that the key 10 may perform the function desired by the user. In addition, the key 10 may further include an elastic body 58, where the elastic body 58 may be disposed between the key cap 14 and the base plate 12 to provide an elastic restoring force to the key cap 14, and trigger the switch on the thin film circuit board 56 to generate a corresponding key signal when the key cap 14 is pressed. As for the design of the elastic body 58 and the trigger design of the thin film circuit board 56 of the key 10, the related description is common in the prior art, and will not be repeated here.

By the above design, during assembly, only the sliding shaft 28 of the second support member 20 is aligned with and laterally locked into the second notch 40 of the second arch bridge structure 36 to enable the sliding shaft 28 to movably penetrate into the second arch bridge structure 36 (as shown in fig. 4), and then the pivot shaft 24 of the first support member 18 is pressed down into the first notch 38 of the first arch bridge structure 34 to enable the pivot shaft 24 to movably penetrate into the first arch bridge structure 34 (as shown in fig. 3), so that the assembly operation of the lifting support mechanism 16 and the base plate 12 can be completed quickly and easily, and the key cap 14 connected to the lifting support mechanism 16 can move up and down relative to the base plate 12, thereby, when the key cap 14 is pressed, the keyboard 1 can perform the function desired by the user.

Therefore, compared with the single-side hook design that adopts a stamped metal plate to form a bent hook structure only on the side wall of the bottom plate hole Kong Shanbian in the prior art, the double-side butt-joint arch bridge design that bridges the inner and outer side hole walls opposite to each other in the bottom plate hole structure to form an arch bridge structure with a notch is adopted in the utility model, so that the structural deformation resistance of the bottom plate when the lifting support mechanism is connected is improved, and the problem that the bottom plate in the prior art is deformed due to structural drawing or pushing during the dismounting operation with the lifting support mechanism is effectively solved.

It should be noted that, in order to enhance the structural connection strength between the base plate and the first support member and the second support member, the present utility model may further adopt an arch bridge structure reinforcement design, for example, please refer to fig. 5, which is a partially enlarged schematic view of the base plate 100 according to another embodiment of the present utility model, wherein the elements in the embodiment have the same numbers as those in the embodiment of the present utility model, and the description thereof will not be repeated herein. As shown in fig. 5, the bottom plate 100 spans the first outer wall W1 and the first inner wall W2 of the first hole-breaking structure 30 opposite to each other to form a first arch bridge structure 102, and the first arch bridge structure 102 may have a flat plate portion 42, and a first bridge arm portion 104 and a second bridge arm portion 46 respectively formed by bending from the first outer wall W1 and the first inner wall W2, and the flat plate portion 42 is connected between the first bridge arm portion 104 and the second bridge arm portion 46. In this embodiment, at least one side of the first bridge arm 104 may taper outwardly along the first outer hole wall W1 to form a hypotenuse reinforcing sheet region 106 (as shown in fig. 5, but not limited to, a single side of the first bridge arm 104 may extend outwardly to form the hypotenuse reinforcing sheet region 106, and a double-side reinforcing design may be adopted to generate a structural reinforcing effect that increases the extension area of the first bridge arm 104, thereby further improving the deformation resistance of the first arch bridge structure 102. The arch bridge structure reinforcement design described above may also be applied to the second bridge arm 46 or the second arch bridge structure 36, and the description thereof may refer to the analogy of fig. 5, and will not be repeated here.

In addition, the arch bridge structure reinforcement design adopted in the present utility model is not limited to the above-mentioned oblique edge reinforcement design, for example, please refer to fig. 6, which is a partially enlarged schematic view of the base plate 150 according to another embodiment of the present utility model, wherein the elements in the embodiment have the same numbers as those in the embodiment of the present utility model, and the description thereof will not be repeated here. As shown in fig. 6, the bottom plate 150 spans the first outer hole wall W1 and the first inner hole wall W2 of the first hole breaking structure 30 opposite to each other to form a first arch bridge structure 152, and the first arch bridge structure 152 may have a flat plate portion 42, and a first bridge arm portion 154 and a second bridge arm portion 156 respectively formed by bending from the first outer hole wall W1 and the first inner hole wall W2, and the flat plate portion 42 is connected between the first bridge arm portion 154 and the second bridge arm portion 156. In this embodiment, at least one side of the first bridge arm 154 may extend outwardly along the first outer wall W1 to form a rectangular reinforcing sheet region 158 (as shown in fig. 6, but not limited thereto, two sides of the first bridge arm 154 may also be configured as a single-side reinforcing sheet region 158), so as to generate a structural reinforcing effect that increases the extension area of the first bridge arm 154, thereby further improving the deformation resistance of the first arch bridge structure 152. The arch bridge structure reinforcement design described above may also be applied to the second bridge arm 156 or the second arch bridge structure 36, and the description thereof may refer to the analogy of fig. 6, and will not be repeated here.

In practical applications, the bridging direction of the arch bridge structure adopted by the present utility model is not limited to the above embodiments, so as to improve the design flexibility of the key in the arch bridge structure configuration. For example, please refer to fig. 7, which is an enlarged schematic diagram of a base plate 200 according to an embodiment of the present utility model, wherein the elements in the embodiment have the same numbers as those in the embodiment, which represents similar structures or functions, and the description thereof is omitted herein. As shown in fig. 7, the bottom plate 200 bridges the first outer wall W1 'and the first inner wall W2' of the first hole-breaking structure 30 opposite to each other to form a first arch bridge 202 (e.g., but not limited to, a punching and embossing process), and the bottom plate 200 bridges the second outer wall W3 'and the second inner wall W4' of the second hole-breaking structure 32 opposite to each other to form a second arch bridge 204 (e.g., a punching and embossing process, but not limited to). In this embodiment, the bridging direction B' of the first arch bridge structure 202 and the second arch bridge structure 204 is perpendicular to the axial direction S1 of the pivot shaft 24 and the axial direction S2 of the sliding shaft 28 (the pivot shaft 24 and the sliding shaft 28 are omitted from fig. 7 for clarity of the arch bridge structure design). The bridging design may depend on the actual manufacturing and assembly requirements of the key of the present utility model.

According to the keyboard, the double-sided butt-joint arch bridge design of the arch bridge structure with the notch is formed by bridging the inner and outer hole walls opposite to each other in the hole breaking structure of the bottom plate, so that the structural deformation resistance of the bottom plate when the lifting supporting mechanism is connected is improved, and the problem of deformation caused by structural drawing or pushing during the process of dismounting the bottom plate and the lifting supporting mechanism is avoided.

Of course, the present utility model is capable of other various embodiments and its several details are capable of modification and variation in light of the present utility model by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A key, characterized by comprising:

keycap;

A lifting support mechanism is disposed under the key cap, and the lifting support mechanism comprises:

A first support member, which is movably connected to the keycap and has a pivot end, at least one end of which protrudes laterally to form a pivot axis; and

A second support member is accommodated in the first support member and is cross-pivoted with the first support member, the second support member is movably connected to the keycap and has a sliding shaft end portion, at least one end of the sliding shaft end portion protrudes laterally to form a sliding shaft; and

A bottom plate, wherein at least one first broken hole structure is formed at a position corresponding to the end of the pivot shaft, and at least one second broken hole structure is formed at a position corresponding to the end of the sliding shaft, the bottom plate bridges the first outer hole wall and the first inner hole wall opposite to each other in the at least one first broken hole structure to form a first arch bridge structure, and the bottom plate bridges the second outer hole wall and the second inner hole wall opposite to each other in the at least one second broken hole structure to form a second arch bridge structure, the first arch bridge structure has a first notch formed at a position corresponding to the pivot shaft, and the second arch bridge structure has a second notch formed at a position corresponding to the sliding shaft;

The pivot shaft is movably disposed in the first arch bridge structure through the first notch, and the sliding shaft is movably disposed in the second arch bridge structure through the second notch, so that the keycap can move up and down relative to the base plate via the lifting support mechanism.

2. The button as described in claim 1 is characterized in that the first arch bridge structure has a flat plate portion and a first bridging arm portion and a second bridging arm portion respectively formed by bending from the first outer hole wall and the first inner hole wall, and the flat plate portion is connected between the first bridging arm portion and the second bridging arm portion.

3. The key as described in claim 2 is characterized in that at least one side edge of the first bridging arm portion extends outward along the first outer hole wall to form a rectangular reinforcement area, or extends outward gradually to form a bevel reinforcement area.

4. The key as described in claim 1 is characterized in that a section of the pivot shaft abutting against the first arch bridge structure forms a guide rounded corner structure to guide the pivot shaft to rotate in the first arch bridge structure; or a section of the sliding shaft abutting against the second arch bridge structure forms a guide rounded corner structure to guide the sliding shaft to slide and rotate in the second arch bridge structure.

5. The key as described in claim 1 is characterized in that a third broken hole structure is formed on the bottom plate at a position corresponding to the inner side of the at least one first broken hole structure, and a blocking piece is formed by bending the hole wall on at least one side of the third broken hole structure, and the blocking piece stops the end of the pivot to limit the pivot axis from rotating in the first arch bridge structure.

6. The key as described in claim 1 is characterized in that the bridging direction of the first arch bridge structure is parallel to the axial direction of the pivot axis, and the bridging direction of the second arch bridge structure is parallel to the axial direction of the sliding axis.

7. The key as described in claim 1 is characterized in that the bridging direction of the first arch bridge structure is perpendicular to the axial direction of the pivot shaft, and the bridging direction of the second arch bridge structure is perpendicular to the axial direction of the sliding shaft.

8. The key as claimed in claim 1, wherein a notch depth of the first notch in a longitudinal direction perpendicular to the pivot axis is smaller than a notch depth of the second notch in the longitudinal direction.

9. The key according to claim 1, further comprising:

A thin film circuit board is arranged on the base plate;

When the key cap is pressed, the switch corresponding to the key on the film circuit board is triggered.

10. The key according to claim 9, further comprising:

The elastic body is arranged between the key cap and the film circuit board, and is used for providing elastic restoring force to the key cap and triggering the switch when the key cap is pressed.