CN113921315A - Keyboard device and key structure thereof - Google Patents

Keyboard device and key structure thereof Download PDF

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Publication number
CN113921315A
CN113921315A CN202010661644.0A CN202010661644A CN113921315A CN 113921315 A CN113921315 A CN 113921315A CN 202010661644 A CN202010661644 A CN 202010661644A CN 113921315 A CN113921315 A CN 113921315A
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CN
China
Prior art keywords
supporting plate
specific gravity
hook
gravity value
key
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010661644.0A
Other languages
Chinese (zh)
Inventor
潘锦松
刘建宏
蔡磊龙
张胜帆
陈祖仪
刘钧源
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primax Electronics Ltd
Original Assignee
Primax Electronics Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Primax Electronics Ltd filed Critical Primax Electronics Ltd
Priority to CN202010661644.0A priority Critical patent/CN113921315A/en
Publication of CN113921315A publication Critical patent/CN113921315A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/83Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/02Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/12Push-buttons
    • H01H3/122Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor
    • H01H3/125Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor using a scissor mechanism as stabiliser
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00Key modules
    • H01H2233/07Cap or button on actuator part
    • H01H2233/074Snap coupling

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  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

The invention provides a keyboard device and a key structure thereof. Each key structure comprises a supporting plate, a keycap, a connecting component and a clamping hook piece. The keycap is arranged above the supporting plate and can move up and down relative to the supporting plate. The connecting component is connected between the supporting plate and the keycap. The clamping hook piece is arranged on the supporting plate, and the connecting component is connected to the supporting plate through the clamping hook piece. The supporting plate is made of a first material, the first material has a first specific gravity value, the clamping hook is made of a second material, the second material has a second specific gravity value, and the second specific gravity value is larger than the first specific gravity value.

Description

Keyboard device and key structure thereof
Technical Field
The invention relates to the field of input devices, in particular to a keyboard device and a key structure thereof.
Background
With the development of technology, the electronic devices are greatly developed to bring convenience to human life, and therefore it is an important issue how to make the operations of the electronic devices more humanized. Common input devices for electronic devices include mouse devices, keyboard devices, and trackball devices, wherein the keyboard devices allow users to directly input characters and symbols into a computer, and are therefore highly appreciated.
The keyboard device comprises a plurality of key structures, each key structure mainly comprises a keycap, a scissors type connecting element, a film circuit board and a supporting plate which are stacked in sequence, and if the key structure belongs to the type of the light-emitting keyboard, a backlight module is additionally arranged below the supporting plate. Specifically, the membrane circuit board is provided with a membrane switch, an elastic element is arranged between the keycap and the membrane circuit board, and the scissors-type connecting element is connected between the keycap and the supporting plate and comprises a first frame and a second frame pivoted to the first frame, so that the first frame and the second frame can swing relative to each other. When the key cap of any key structure is pressed and moves downwards relative to the bottom plate, the first frame and the second frame of the scissors type connecting element are changed into an overlapped state from an opening state, and the key cap moving downwards extrudes the elastic element to enable the elastic element to abut against and trigger the corresponding membrane switch, so that the keyboard device generates a corresponding key signal.
In order to ensure the strength of the whole structure of the keyboard device, a metal with high strength is generally selected as the material of the supporting plate, but the specific gravity of the metal material with high strength is generally high, which results in a great increase of the whole weight of the keyboard device. In order to effectively reduce the overall weight of the keyboard device, the material of the entire supporting plate is replaced with other material with a lighter specific gravity, such as metal or plastic with lower strength, but the supporting plate is too brittle and easily broken, for example, the supporting plate has a hook connected with the scissors-type connecting element, and if the material of the supporting plate is selected from metal or plastic with lower strength, the hook is very easily broken in the process of assembling the scissors-type connecting element to the supporting plate. In addition, although a plurality of hollow regions may be formed in the support plate to further reduce the weight of the support plate, the number of hollow regions formed in the support plate is limited, and thus the effect of reducing the weight is not significant. Therefore, how to improve the above problems is the focus of attention of those skilled in the art.
Disclosure of Invention
One objective of the present invention is to provide a keyboard device, in which a supporting plate and a hook of a key structure are made of different materials, and the specific gravity of the hook is greater than that of the supporting plate, so as to achieve the purpose of light weight and structural strength.
Another objective of the present invention is to provide a key structure, in which the supporting plate and the hook are made of different materials, and the specific gravity of the hook is greater than that of the supporting plate, so as to achieve the purpose of light weight and structural strength.
Other objects and advantages of the present invention will be further understood from the technical features disclosed in the present invention.
In order to achieve one or a part of or all of the above or other objects, the present invention provides a keyboard apparatus, which includes a plurality of key structures, each of the key structures including a supporting plate, a key cap, a connecting member and a hook. The keycap is arranged above the supporting plate and can move up and down relative to the supporting plate. The connecting component is connected between the supporting plate and the keycap. The clamping hook piece is arranged on the supporting plate, and the connecting component is connected to the supporting plate through the clamping hook piece. The supporting plate is made of a first material, the first material has a first specific gravity value, the clamping hook is made of a second material, the second material has a second specific gravity value, and the second specific gravity value is larger than the first specific gravity value.
In an embodiment of the invention, the range of the first specific weight value of the first material is between 1.4g/cm3To 1.9g/cm3In the meantime.
In an embodiment of the present invention, a range of the second specific gravity of the second material is between 2.64/cm3To 7.93/cm3In the meantime.
In an embodiment of the invention, the first material is selected from any one of a CEM-1 single-sided glass fiber material, a CEM-3 double-sided semi-glass fiber material, an FR4 double-sided glass fiber material, a magnesium-lithium alloy material, and a magnesium alloy material.
In an embodiment of the invention, the second material is selected from one of a self-heating zinc-plated steel material, an aluminum alloy material and a stainless steel material.
In an embodiment of the invention, each of the key structures further includes a film circuit board and an elastic element. The film circuit board is arranged between the keycap and the support plate. The elastic element is arranged between the film circuit board and the keycap.
In an embodiment of the invention, each of the key structures further includes a backlight module. The backlight module is arranged below the supporting plate, and the supporting plate is positioned between the film circuit board and the backlight module.
In an embodiment of the invention, the connecting member is a scissor-type connecting member, a balance bar member, or a combination thereof.
In an embodiment of the invention, the supporting plate includes a top surface and a bottom surface opposite to each other and a through hole penetrating from the top surface to the bottom surface, the hook member includes a positioning portion, the positioning portion penetrates through the through hole to position the hook member on the supporting plate, and the positioning portion extends to the outside of the through hole.
In an embodiment of the invention, each of the key structures further includes a fixing unit covering a portion of the bottom surface of the supporting plate and the positioning portion extending to the outside of the through hole for fixing the hook member on the supporting plate.
The invention provides a key structure, which comprises a support plate, a keycap, a connecting component and a hook component. The keycap is arranged above the supporting plate and can move up and down relative to the supporting plate. The connecting component is connected between the supporting plate and the keycap. The clamping hook piece is arranged on the supporting plate, and the connecting component is connected to the supporting plate through the clamping hook piece. The supporting plate is made of a first material, the first material has a first specific gravity value, the clamping hook piece is made of a second material, the second material has a second specific gravity value, and the second specific gravity value is larger than the first specific gravity value.
In the keyboard device of the embodiment of the invention, the support plate of the key structure is made of the first material with the first specific gravity value, the hook member arranged on the support plate is made of the second material with the second specific gravity value, and the second specific gravity value of the hook member is larger than the first specific gravity value of the support plate.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is an external structural schematic view of a keyboard device according to an embodiment of the invention.
Fig. 2 is a schematic perspective view of a key structure of the keyboard apparatus shown in fig. 1.
Fig. 3 is a schematic side view of the key structure shown in fig. 2.
FIG. 4 is a cross-sectional view taken along line AA in FIG. 2.
Fig. 5 is a schematic cross-sectional view taken along the line BB in fig. 2.
Fig. 6 is a schematic cross-sectional view of a key structure according to another embodiment of the invention.
The reference numbers are as follows:
1: keyboard device
10. 10 a: key structure
101: supporting plate
102. 102 a: key cap
103. 103 a: connecting assembly
104. 104 a: fastening hook piece
105: thin film circuit board
106: elastic element
107: backlight module
108: fixing unit
1011: the top surface
1012: bottom surface
1013. 1070: through hole
1030: frame structure
1031: balancing pole
1041: positioning part
1042: hook part
AA. BB: section line segment
Detailed Description
Referring to fig. 1 to 5, fig. 1 is an external structural schematic view of a keyboard device according to an embodiment of the invention. Fig. 2 is a schematic perspective view of a key structure of the keyboard apparatus shown in fig. 1. Fig. 3 is a schematic side view of the key structure shown in fig. 2. FIG. 4 is a cross-sectional view taken along line AA in FIG. 2. Fig. 5 is a schematic cross-sectional view taken along the line BB in fig. 2. For clarity of illustration, fig. 2-5 only show a single key structure and associated elements. As shown in fig. 1, the keyboard device 1 includes a plurality of key structures 10, the key structures 10 can be classified into general keys, numeric keys, and function keys, etc. which are respectively pressed by fingers of a user to enable the keyboard device 1 to generate corresponding key signals to a computer, so as to enable the computer to execute corresponding functions, for example, the general keys are used for inputting symbols such as english letters, the numeric keys are used for inputting numbers, and the function keys are used for providing various shortcut functions, for example, F1-F12.
The detailed structure of the key structure 10 of the keyboard apparatus 1 according to the embodiment of the present invention will be further described below.
As shown in fig. 2 to 5, the key structure 10 of the present embodiment includes a supporting plate 101, a key cap 102, a connecting component 103, and a hook 104. The key cap 102 is disposed above the supporting plate 101, and the key cap 102 can move up and down relative to the supporting plate 101. The connecting member 103 is connected between the supporting plate 101 and the key cap 102, and in the embodiment, the connecting member 103 is, for example, a scissors-type connecting member, but the invention is not limited thereto. The hook 104 is disposed on the supporting plate 101, and the connecting component 103 is connected to the supporting plate 101 through the hook 104. In this embodiment, the supporting plate 101 of the key structure 10 is made of a first material having a first specific gravity, and the hook 104 is made of a second material having a second specific gravity, wherein the second specific gravity of the second material is greater than the first specific gravity of the first material. Since the supporting plate 101 of the key structure 10 of the present embodiment is made of a material with a relatively low specific gravity and the hook 104 is made of a material with a relatively high specific gravity, the purpose of light weight can be achieved, and the high-strength hook 104 can effectively prevent the hook 104 from being broken when the connecting assembly 103 is assembled on the supporting plate 101 through the hook 104.
In the present embodiment, the specific gravity of the supporting plate 101 made of the first material ranges from 1.4g/cm3To 1.9g/cm3That is, the specific gravity of the supporting plate 101 made of the first material may be in the range of 1.7g/cm3To 1.9g/cm3The CEM-1 single-sided glass fiber material, the CEM-3 double-sided semi-glass fiber material and the FR4 double-sided glass fiber material have the specific gravity value of 1.8g/cm3The magnesium alloy material has a specific gravity value range of 1.4g/cm3To 1.6g/cm3The magnesium-lithium alloy material of the present invention is not limited thereto, and the first material used for the support plate 101 is not limited to the above-mentioned materials on the premise that the specific gravity value of the first material is smaller than that of the second material.
In the present embodiment, the specific gravity of the hook 104 made of the second material ranges from 2.64g/cm3To 7.93g/cm3That is, the hook 104 made of the second material may have a specific gravity of 2.64g/cm3The specific gravity value of the GM55 aluminum alloy is 2.7g/cm3The Al5052 aluminum alloy material has a specific gravity value of 7.85g/cm3The KU400 hot-dip galvanized steel material and the specific gravity value thereof are 7.93g/cm3The SUS304 stainless steel material of the present invention, however, the present invention is not limited thereto, and the specific gravity of the second material is larger than that of the first materialThe specific gravity of the material is not limited to the above-mentioned specific gravity, and the second material used for the hook 104 is not limited to the above-mentioned specific gravity.
It should be noted that the material of the supporting plate 101 (the first material) and the material of the hook member 104 (the second material) can be selected from any one of the materials for matching according to the actual requirement, for example, the specific gravity is 1.7g/cm3The CEM-1 single-sided glass fiber is used as the base material of the support plate 101 and is matched with a specific gravity value of 7.93g/cm3The SUS304 stainless steel is used as a base material of the hook 104, so that the weight reduction and the securing of the structural connection strength can be optimized.
As shown in fig. 2 to 5, the key structure 10 of the present embodiment further includes a film circuit board 105, an elastic element 106, and a backlight module 107. The thin film wiring board 105 is disposed between the key cap 102 and the support plate 101, and since the thin film wiring board 105 is soft and thin, the thin film wiring board 11 is supported by the support plate 13 below. The elastic element 106 is disposed between the film circuit board 105 and the key cap 102, specifically, the elastic element 106 is disposed on the film circuit board 105, when the key structure 10 is pressed by a user and moves downward relative to the supporting plate 101, the connecting assembly 103 changes from the open state to the folded state, and the key cap 102 moving downward presses the elastic element 106, so that the elastic element 106 abuts against and triggers a switch (not shown in this figure) on the film circuit board 105, thereby enabling the keyboard apparatus 1 to generate a corresponding key signal. The backlight module 107 is disposed below the supporting plate 101, and the supporting plate 101 is located between the backlight module 107 and the thin film circuit board 105, and the backlight module 107 is composed of a light guide plate and a light emitting device disposed on one side of the light guide plate, for example, but the invention is not limited thereto.
It should be noted that, in the present embodiment, the supporting plate 101 is made of a material with a low specific gravity and the hook 104 is made of a material with a high specific gravity, so that the keyboard device can be used not only in the light-emitting keyboard device having the backlight module 107, but also in a keyboard device without a backlight module.
As shown in fig. 4 and 5, the supporting plate 101 of the present embodiment includes a top surface 1011 and a bottom surface 1012 opposite to each other, and a through hole 1013 penetrating from the top surface 1011 to the bottom surface 1012, and the hook 104 includes a positioning portion 1041 and a hook 1042. In the embodiment, the hook 104 is positioned on the supporting plate 101 by the positioning portion 1041 penetrating through the through hole 1013 of the supporting plate 101, and after the positioning portion 1041 of the hook 104 penetrates through the through hole 1013 of the supporting plate 101, a part of the positioning portion 1041 extends out of the through hole 1013, and the two connecting frames 1030 of the connecting assembly 103 are respectively pivotally connected to the hook portions 1042 of the corresponding hook 104, so that the connecting assembly 103 can be switched between the unfolded state and the folded state according to the lifting movement of the keycap 102. Unlike the conventional key structure in which the hook member is directly stamped from the supporting plate (i.e., the hook member and the supporting plate are integrally formed), the hook member 104 and the supporting plate 101 of the present embodiment are two independent members, and the connection relationship between the two is that the positioning portion 1041 of the hook member 104 penetrates through the through hole 1013 of the supporting plate 101, so that the hook member 104 can be positioned on the supporting plate 101.
As shown in fig. 4 and fig. 5, the key structure 10 of the present embodiment further includes a fixing unit 108. The fixing unit 108 covers a portion of the bottom surface 1012 of the supporting plate 101 and the positioning portion 1041 extending out of the through hole 1013, so as to fix the hook 104 on the supporting plate 101. In addition, the backlight module 107 of the present embodiment also has a through hole 1070, and when the fixing unit 108 covers a portion of the bottom surface 1012 of the supporting plate 101, the fixing unit 108 is located in the through hole 1070 of the backlight module 107. In the present embodiment, the fixing unit 108 is, for example, solder, but the invention is not limited thereto, that is, the hook 104 and the supporting plate 101 of the present embodiment are fixed to each other by, for example, soldering. Besides, the hook 104 is fixed on the supporting plate 101 by welding, the hook 104 can also be fixed on the supporting plate 101 by Surface-mount technology (Surface-mount technology) under the condition that the supporting plate 101 does not form a through hole, and the hook 104 can also be riveted on the supporting plate 101 directly by riveting, which does not limit the fixing manner between the hook 104 and the supporting plate 101.
Please refer to fig. 6, which is a schematic cross-sectional view illustrating a key structure according to another embodiment of the present invention. The key structure 10a of the present embodiment is similar to the key structure 10 shown in fig. 2 to 5, and the difference lies in that the key cap 102a of the key structure 10a of the present embodiment has a larger area and a longer length, and is similar to the Space bar (Space) below the keyboard apparatus 1 shown in fig. 1, but the present invention is not limited thereto, the key structure 10a may also be a multiple key such as an input key (Enter), a Shift key (Shift), a case and case Shift key (Caps Lock), and for the key structure 10a with a longer or larger area size, the connecting component 103a further has a balance bar component, that is, the connecting component 103a of the key structure 10a is a combination of a balance bar component 1031 and a scissor-type connecting component (not shown in the present figure), specifically, the balance bar component 1031 is an elongated rod shaft, and is correspondingly disposed below the key cap 102a and around the scissor-type connecting component (please refer to two frame connecting components 1030 of the scissor-type connecting component shown in fig. 3 to 5, the balance bar assembly 1031 surrounds the two frames 1030), the balance bar assembly 1031 can drive the key cap 102a to move down uniformly according to the upward pressing so as to avoid the inclined pressing deviation condition that one side is higher and the other side is lower. In the present embodiment, the hook 104a pivotally connected to the balance bar assembly 1031 is in an n-shaped structure, two positioning portions 1041 extend downward from two sides of the hook 1042 of the hook 104a, the hook 104a is positioned on the supporting plate 101 by the positioning portions 1041 penetrating through the through hole 1013 of the supporting plate 101, and then the fixing unit 108 covers a part of the bottom 1012 of the supporting plate 101 and the positioning portions 1041 extending to the outside of the through hole 1013 to fix the hook 104a on the supporting plate 101. The connection relationship of other elements of the key structure 10a is similar to the key structure 10 shown in fig. 2 to 5, and therefore, the description thereof is omitted.
In summary, in the keyboard apparatus according to the embodiment of the invention, the supporting plate of the key structure is made of the first material having the first specific gravity, the hook member disposed on the supporting plate is made of the second material having the second specific gravity, and the second specific gravity of the hook member is greater than the first specific gravity of the supporting plate.
However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made by the claims and the description of the present invention are still within the scope of the present invention. Moreover, not all objects or advantages or features disclosed herein are necessarily achieved by any one embodiment or claim of the invention. In addition, the abstract section and the title are provided for assisting the search of patent documents and are not intended to limit the scope of the present invention. Furthermore, the terms "first," "second," and the like in the description or in the claims are used only for naming elements (elements) or distinguishing different embodiments or ranges, and are not used for limiting the upper limit or the lower limit on the number of elements.

Claims (11)

1. A keyboard apparatus, comprising:
a plurality of key structures, each key structure comprising:
a supporting plate;
a key cap, which is arranged above the supporting plate and can move up and down relative to the supporting plate;
the connecting component is connected between the supporting plate and the keycap; and
a hook member disposed on the support plate, the connecting assembly being connected to the support plate via the hook member;
the supporting plate is made of a first material, the first material has a first specific gravity value, the clamping hook is made of a second material, the second material has a second specific gravity value, and the second specific gravity value is larger than the first specific gravity value.
2. The keyboard apparatus of claim 1, wherein the first specific weight value of the first material is in a range of 1.4g/cm3To 1.9g/cm3In the meantime.
3. The keyboard device of claim 1, wherein the second specific gravity of the second material is in a range of 2.64/cm3~7.93/cm3In the meantime.
4. The keyboard apparatus of claim 1, wherein the first material is selected from one of a CEM-1 single-sided fiberglass material, a CEM-3 double-sided semi-fiberglass material, a FR4 double-sided fiberglass material, a magnesium-lithium alloy material, and a magnesium alloy material.
5. The keyboard apparatus of claim 1, wherein the second material is selected from one of self-heating zinc-plated steel, aluminum alloy and stainless steel.
6. The keyboard apparatus of claim 1, wherein each of the key structures further comprises:
a film circuit board configured between the keycap and the support plate; and
and the elastic element is configured between the film circuit board and the keycap.
7. The keyboard device of claim 6, wherein each of the key structures further comprises:
and the backlight module is arranged below the supporting plate, and the supporting plate is positioned between the thin film circuit board and the backlight module.
8. The keyboard apparatus of claim 1, wherein the connecting member is a scissor-type connecting member, a balance bar member, or a combination thereof.
9. The keyboard apparatus of claim 1, wherein the supporting plate comprises a top surface and a bottom surface opposite to each other and a through hole penetrating from the top surface to the bottom surface, the hook member comprises a positioning portion, the positioning portion penetrates through the through hole to position the hook member on the supporting plate, and the positioning portion extends out of the through hole.
10. The keyboard apparatus of claim 9, wherein each of the key structures further comprises a fixing unit covering a portion of the bottom surface of the supporting plate and the positioning portion extending out of the through hole for fixing the hook member to the supporting plate.
11. A key structure comprising:
a supporting plate;
a key cap, which is arranged above the supporting plate and can move up and down relative to the supporting plate;
the connecting component is connected between the supporting plate and the keycap; and
a hook member disposed on the support plate, the connecting assembly being connected to the support plate via the hook member;
the supporting plate is made of a first material, the first material has a first specific gravity value, the hook piece is made of a second material, the second material has a second specific gravity value, and the second specific gravity value is larger than the first specific gravity value.
CN202010661644.0A 2020-07-10 2020-07-10 Keyboard device and key structure thereof Pending CN113921315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010661644.0A CN113921315A (en) 2020-07-10 2020-07-10 Keyboard device and key structure thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010661644.0A CN113921315A (en) 2020-07-10 2020-07-10 Keyboard device and key structure thereof

Publications (1)

Publication Number Publication Date
CN113921315A true CN113921315A (en) 2022-01-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010661644.0A Pending CN113921315A (en) 2020-07-10 2020-07-10 Keyboard device and key structure thereof

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030169232A1 (en) * 2002-03-07 2003-09-11 Alps Electric Co., Ltd. Keyboard input device
CN107644767A (en) * 2016-07-22 2018-01-30 致伸科技股份有限公司 Key board unit
CN107731599A (en) * 2016-08-10 2018-02-23 致伸科技股份有限公司 Key board unit
CN110444431A (en) * 2019-02-21 2019-11-12 光宝电子(广州)有限公司 Key support plate, key module and luminous key device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030169232A1 (en) * 2002-03-07 2003-09-11 Alps Electric Co., Ltd. Keyboard input device
CN107644767A (en) * 2016-07-22 2018-01-30 致伸科技股份有限公司 Key board unit
CN107731599A (en) * 2016-08-10 2018-02-23 致伸科技股份有限公司 Key board unit
CN110444431A (en) * 2019-02-21 2019-11-12 光宝电子(广州)有限公司 Key support plate, key module and luminous key device

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