CN113410080A - Key module and keyboard - Google Patents
Key module and keyboard Download PDFInfo
- Publication number
- CN113410080A CN113410080A CN202110545237.8A CN202110545237A CN113410080A CN 113410080 A CN113410080 A CN 113410080A CN 202110545237 A CN202110545237 A CN 202110545237A CN 113410080 A CN113410080 A CN 113410080A
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- China
- Prior art keywords
- light
- lower cover
- key module
- permeable
- pressing shaft
- Prior art date
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- 239000000758 substrate Substances 0.000 claims description 56
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 21
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000037213 diet Effects 0.000 description 2
- 235000005911 diet Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/023—Light-emitting indicators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/002—Casings sealed
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/03—Separate key housing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/038—Casings transparent
Landscapes
- Push-Button Switches (AREA)
Abstract
The invention relates to the technical field of keyboards and discloses a key module and a keyboard, wherein the key module is applied to the keyboard and comprises an upper cover, a light-permeable lower cover and a pressing shaft; the light-permeable lower cover is combined with the upper cover and comprises a body, one side of the light-permeable lower cover, which faces the upper cover, is provided with an opening, and the light-permeable lower cover except the opening is of a closed structure; one end of the pressing shaft penetrates through and protrudes out of the upper cover, and the other end of the pressing shaft is accommodated in the light-permeable lower cover and can reciprocate along the axial direction of the pressing shaft. According to the key module, the light-permeable lower cover can enable the light emitted by the LED below to penetrate through the lower cover and irradiate the upper cover under the condition that the hole is not broken, so that liquid is prevented from entering the electronic element accommodating space below the light-permeable lower cover from the broken hole of the lower cover, and the probability of damage of the electronic element is reduced.
Description
The application is a divisional application, the application number of the original application is 201910104674.9, the application date is 2019, 2 and 1, and the invention name is 'key module'.
Technical Field
The invention relates to the technical field of keyboards, in particular to a key module and a keyboard, and particularly relates to a key module with a waterproof function.
Background
When current keyboard used, when making the button use under the darker environment of light, or provide and dazzle beautiful visual effect, also can punch in casing department down and make the LED lamp that sets up in the bottom can pass the casing down and hit last casing department to provide illumination, the hole that is used for setting up the LED lamp on the casing down very easily causes the problem of liquid inflow.
In addition, the existing keyboard has other defects: firstly, because users mostly use computers for a long time, the users often have diet requirements during the computer using process, and occasionally have the problem that the internal electronic components are damaged due to the fact that liquid is accidentally poured over and splashed on the keyboard during the diet. Particularly, when some industrial computers or notebook computers with special requirements are used outdoors, the problem that the keyboard is exposed to rain in rainy days, the keyboard is possibly damaged and cannot be used is caused. In order to prevent the keyboard from being damaged by water entering the keyboard due to gaps of the keys, various waterproof functions are provided, for example, a waterproof coating is added on the circuit board. After the waterproof coating film is used for a long time, the doubtful question of whether the waterproof performance can be continuously maintained or not is still remained.
Secondly, in the existing keyboard key design, the upper and lower shell buckles are mostly utilized for combination, and liquid splashed to the keys is easy to flow into the keyboard through the buckle structure.
Thirdly, when the key is assembled on the substrate, the gap is easy to cause the liquid inflow problem.
Disclosure of Invention
The invention aims to provide a key module and a keyboard so as to prevent liquid from entering the keyboard through a hole provided with an LED lamp.
In order to achieve the purpose, the invention adopts the following technical scheme:
a key module applied to a keyboard comprises:
an upper cover;
the light-permeable lower cover is combined with the upper cover and comprises a body, one side of the body, facing the upper cover, is provided with an opening, and the side except the opening is of a closed structure; and
one end of the pressing shaft penetrates through the upper cover and protrudes out of the upper cover, and the other end of the pressing shaft is accommodated in the light-permeable lower cover and can reciprocate along the axial direction of the light-permeable lower cover.
As a preferred technical solution of the above key module, the upper cover is adhered to the opening of the light-permeable lower cover, and when the key module is disposed on a substrate of the keyboard in a penetrating manner, the adhesion position of the upper cover and the light-permeable lower cover is completely located above the substrate.
As a preferred technical solution of the key module, the light-permeable lower cover further includes a ring-shaped flange, the ring-shaped flange is protruded from an outer peripheral edge of the opening of the body, and when the key module is disposed on a substrate of the keyboard in a penetrating manner, the ring-shaped flange abuts against an upper surface of the substrate.
As a preferred technical solution of the key module, the light-permeable lower cover further includes a stopping portion, the stopping portion is disposed below the annular flange, and a groove is formed between the stopping portion and the annular flange, when the key module is disposed on the substrate in a penetrating manner, the substrate is accommodated in the groove, and the stopping portion abuts against a lower surface of the substrate.
As a preferable technical solution of the above key module, the upper cover is adhered to the annular flange of the light-permeable lower cover, so that the upper cover is completely located above the substrate.
As a preferable technical solution of the above key module, the key module further includes a waterproof ring, and the waterproof ring is annularly disposed between the annular flange and the upper surface of the substrate.
As a preferable technical solution of the above key module, the waterproof ring and the light-permeable lower cover are integrally formed.
As a preferred technical solution of the above key module, the light-permeable lower cover extends downward to form a space for the pressing shaft to move up and down, and a through hole is formed at one end of the pressing shaft, which is accommodated in the light-permeable lower cover;
when the key module is arranged on a substrate of the keyboard in a penetrating way, a light emitter and a light receiver which are respectively positioned at two opposite sides of the light-permeable lower cover are arranged on the circuit board below the substrate of the keyboard;
when the pressing shaft is not stressed, the pressing shaft abuts against the upper cover, the through hole is positioned above the light emitter and the light receiver, and light rays emitted by the light emitter are blocked by the pressing shaft; when the pressing shaft is pressed by force, the light emitted by the light emitter can pass through the through hole and be received by the light receiver.
As a preferable technical solution of the above key module, the key module further includes an elastic element, and the elastic element is used for enabling the pressing shaft to move upwards through an elastic restoring force provided by the elastic element when the acting force applied to the pressing shaft disappears.
As a preferred technical solution of the above key module, the side walls of the light-permeable lower cover adjacent to the light emitter and the light receiver are respectively a first side wall and a second side wall, a portion of the first side wall facing the light emitter is a first light-permeable wall, and a portion of the second side wall facing the light receiver is a second light-permeable wall;
the wall thickness of the first light-transmitting wall is smaller than that of the part except the first light-transmitting wall, and the wall thickness of the second light-transmitting wall is smaller than that of the part except the second light-transmitting wall.
The invention also provides a keyboard, which comprises a substrate and a key module, wherein the key module is arranged on the substrate in a penetrating way; the key module includes:
an upper cover;
the light-permeable lower cover is combined with the upper cover and comprises a body, one side of the body, facing the upper cover, is provided with an opening, and the side except the opening is of a closed structure; and
one end of the pressing shaft penetrates through the upper cover and protrudes out of the upper cover, and the other end of the pressing shaft is accommodated in the light-permeable lower cover and can reciprocate along the axial direction of the light-permeable lower cover.
As a preferable technical solution of the above keyboard, the upper cover is bonded to the opening of the light-permeable lower cover, and a bonding portion of the upper cover and the light-permeable lower cover is completely located above the substrate.
As a preferable technical solution of the keyboard, the light-permeable lower cover further includes a ring-shaped flange, the ring-shaped flange is protruded from an outer peripheral edge of the opening of the body, and the ring-shaped flange abuts against an upper surface of the base plate.
As a preferable technical solution of the keyboard, the light-permeable lower cover further includes a stopping portion, the stopping portion is disposed below the annular flange, and a groove is formed between the stopping portion and the annular flange, the substrate is accommodated in the groove, and the stopping portion abuts against a lower surface of the substrate.
As a preferred technical solution of the above keyboard, the light-permeable lower cover extends downward to form a space for the pressing shaft to move up and down, and a through hole is formed at one end of the pressing shaft, which is accommodated in the light-permeable lower cover;
a circuit board is arranged below the substrate, and an optical transmitter and an optical receiver which are respectively positioned at two opposite sides of the light-permeable lower cover are arranged on the circuit board;
when the pressing shaft is not stressed, the pressing shaft abuts against the upper cover, the through hole is positioned above the light emitter and the light receiver, and light rays emitted by the light emitter are blocked by the pressing shaft; when the pressing shaft is pressed by force, the light emitted by the light emitter can pass through the through hole and be received by the light receiver.
The invention has the beneficial effects that: according to the key module, the light emitted by the LED below can penetrate through the light-permeable lower cover to irradiate the upper cover under the condition that the light-permeable lower cover is not provided with the broken hole through the light-permeable lower cover, so that liquid is prevented from entering the light-permeable lower cover from the broken hole of the light-permeable lower cover, and the probability of damage of an electronic element is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a perspective view of a key module according to an embodiment of the invention;
fig. 2 is a cross-sectional view of a key module according to an embodiment of the invention;
fig. 3 is a cross-sectional view of another view of the key module according to an embodiment of the invention;
fig. 4 is a cross-sectional view of the key module at another viewing angle and after the key is pressed according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
Referring to fig. 1 to 4, fig. 1 is a perspective view of a key module according to an embodiment of the present invention, fig. 2 is a cross-sectional view of the key module according to the embodiment of the present invention, fig. 3 is a cross-sectional view of the key module according to the embodiment of the present invention from another view, and fig. 4 is a cross-sectional view of the key module according to the embodiment of the present invention from another view after a key is pressed. As shown in fig. 1, a key module 1 according to an embodiment of the present invention includes an upper cover 10, a light-permeable lower cover 20, and a pressing shaft 30. As shown in fig. 2, the present embodiment further provides a keyboard, the key modules 1 are assembled on the keyboard to provide keys for pressing input, and each key module 1 is installed on a substrate 90 of the keyboard, and a circuit board 91 (shown in fig. 3) is disposed below the substrate 90, so that after the key module 1 is pressed by a force, the pressing shaft 30 can move downward to generate a pressing signal.
Referring to fig. 1 again, the light-permeable lower cover 20 is made of a light-permeable material such as a transparent material, a matte material or a translucent material, so that light emitted from an LED (not shown) disposed on the circuit board 91 can pass through the light-permeable lower cover 20 and pass out upward, thereby providing light or visual effect required by the keyboard.
The light permeable lower cover 20 is combined with the upper cover 10. Specifically, as shown in fig. 1 and 2, the light-permeable bottom cover 20 includes a body 21, and a side of the body 21 facing the top cover 10 has an opening 22, and is of a closed structure except for the opening 22. That is, the entire light-permeable lower cover 20 is completely closed except for the opening 22, so that no liquid can enter the light-permeable lower cover 20 from a place except the opening 22.
In the present embodiment, the upper cover 10 is fixed to the opening 22 of the light-permeable lower cover 20 by means of adhesion. The upper cover 10 and the light-permeable lower cover 20 are connected by adhesion, rather than the upper cover 10 and the light-permeable lower cover 20 are fastened by a snap structure, so that the upper cover 10 and the light-permeable lower cover 20 can be tightly connected without any gap, and liquid is prevented from flowing into the lower cover 20 from between the upper cover 10 and the light-permeable lower cover 20. Moreover, even if liquid really enters the light-permeable lower cover 20 from the upper cover 10, the liquid only stays in the light-permeable lower cover 20 due to the closed structure of the light-permeable lower cover 20 except the opening 22, and does not enter the position where the circuit board 91 is arranged below the light-permeable lower cover 20, so that the problem that the circuit board 91 or electronic components (such as LEDs) arranged on the circuit board 91 are possibly damaged due to the liquid entering the light-permeable lower cover 20 is solved.
As shown in fig. 1 and 2, one end of the pressing shaft 30 penetrates and protrudes from the upper cover 10, and the other end is accommodated in the light-permeable lower cover 20 and can reciprocate along the axial direction thereof. As shown in fig. 2, the lower end of the pressing shaft 30 penetrates the entire upper cover 10 to the light-permeable lower cover 20, and the upper end of the pressing shaft 30 protrudes from the upper cover 10, so that the pressing shaft can be used as a pressing key after a keycap (not shown) is installed.
In the present embodiment, the light-permeable lower cover 20 is utilized to enable the light emitted from the LED below to penetrate through the light-permeable lower cover 20 and irradiate the upper cover 10 without providing a hole, so as to avoid the problem that the liquid enters the electronic component accommodating space below the light-permeable lower cover 20 through the hole of the light-permeable lower cover 20, and reduce the probability of damaging the electronic component. Moreover, since the light-permeable lower cover 20 is of a closed structure except the opening 22, even if liquid really enters the light-permeable lower cover 20 from the joint between the upper cover 10 and the light-permeable lower cover 20 or from the gap between the upper cover 10 and the pressing shaft 30, the liquid only stays in the light-permeable lower cover 20 and does not enter the position where the circuit board 91 is disposed below the light-permeable lower cover 20, so that the problem that the circuit board 91 or electronic components (such as LEDs) disposed on the circuit board 91 may be damaged due to the liquid entering the light-permeable lower cover 20 is solved.
As shown in fig. 2, when the key module 1 is disposed on the substrate 90 of the keyboard, the bonding portion between the upper cover 10 and the light-permeable lower cover 20 is completely located above the substrate 90. Since the bonding part is completely located above the substrate 90, the liquid flowing to the upper side of the substrate 90 stays at the bonding part of the upper cover 10 and the light-permeable lower cover 20, i.e. above the substrate 90, and since the upper cover 10 and the light-permeable lower cover 20 are connected by bonding, the liquid can be prevented from entering the light-permeable lower cover 20 from the bonding part of the upper cover 10 and the light-permeable lower cover 20 to the maximum extent.
As shown in fig. 1 and 2, in the present embodiment, the light-permeable bottom cover 20 further includes a ring-shaped flange 23, and the ring-shaped flange 23 is protruded from the outer periphery of the opening 22 of the body 21. When the key module 1 is disposed on the substrate 90 of the keyboard, the annular flange 23 of the light-permeable lower cover 20 abuts against the upper surface of the substrate 90. When the liquid enters the upper surface of the substrate 90, the annular flange 23 covers and shields the gap between the light-permeable lower cover 20 and the substrate 90, so that the liquid can be effectively prevented from flowing into the lower side of the substrate 90 through the gap between the light-permeable lower cover 20 and the substrate 90.
As shown in fig. 2, the light permeable lower cover 20 includes a stopping portion 24, the stopping portion 24 is disposed below the annular flange 23, and a groove 25 is formed between the stopping portion 24 and the annular flange 23. When the key module 1 is disposed on the substrate 90, the substrate 90 is accommodated in the groove 25, and the stopping portion 24 abuts against the lower surface of the substrate 90. The stopping portion 24 disposed below the annular flange 23 can also provide a positioning function when the key module 1 is mounted on the substrate 90, so that the key module 1 can clamp the substrate 90, and the substrate 90 will not move up and down.
In order to further enhance the waterproof performance of the key module 1, a waterproof ring 40 may be disposed between the annular flange 23 and the upper surface of the substrate 90, and the waterproof ring 40 is disposed between the lower side of the annular flange 23 and the upper surface of the substrate 90. The waterproof ring 40 can make the joint between the lower side of the annular flange 23 and the upper surface of the base plate 90 tighter, and improve the waterproof effect.
Further, the upper cover 10 is adhered to the annular flange 23 of the light-permeable lower cover 20, so that the upper cover 10 is completely located above the substrate 90. Since the annular flange 23 of the light-permeable lower cover 20 is located above the base plate 90, the bonding position of the upper cover 10 and the light-permeable lower cover 20 can be located above the base plate 90 and is about the thickness of the annular flange 23. It can be understood that: the interval between the bonding surface between the upper cover 10 and the light-permeable lower cover 20 and the upper surface of the base plate 90 is about the thickness of the annular flange 23 in the vertical direction, so as to avoid the possibility that the liquid staying on the base plate 90 is infiltrated from the bonding position of the upper cover 10 and the light-permeable lower cover 20.
In addition, the waterproof ring 40 and the light-permeable lower cover 20 are integrally formed, so that the assembly of the key module 1 is more convenient, and the waterproof ring 40 is prevented from being separated from a required position in the assembly process to influence the waterproof effect.
Referring to fig. 3 and 4, the operation of the key module 1 provided in the present embodiment will be described. The key module 1 of the present embodiment is an optical axis mechanical key module. As shown in FIG. 3, the pressing shaft 30 has a through hole 31 at one end thereof received in the light-permeable lower cover 20. The circuit board 91 is provided with a light emitter 92 and a light receiver 93 respectively located at two opposite sides of the light-permeable lower cover 20, and the light emitter 92 continuously emits light toward the light receiver 93. As shown in fig. 3, when the pressing shaft 30 is not under stress, the pressing shaft 30 abuts against the upper cover 10, and the through hole 31 is located above the light emitter 92 and a light receiver 93, so that the light emitted from the light emitter 92 is blocked by the pressing shaft 30 and cannot penetrate through the pressing shaft 30 to be received by the light receiver 93. Therefore, no pressing signal is generated.
As shown in fig. 4, when the pressing shaft 30 is pressed by a force, the pressing shaft 30 moves downward to move the through hole 31 downward, the light emitted from the light emitter 92 passes through the through hole 31, and the light receiver 93 generates a pressing signal when receiving the light emitted from the light emitter 92. Thus, the generation of the key signal can be completed when the key module 1 is pressed. When the force applied to the pressing shaft 30 is removed, the pressing shaft 30 may be returned to the position shown in fig. 3 by an elastic restoring force, for example, provided by an elastic member (not shown).
As can be seen from fig. 3 and 4, if the pressing shaft 30 is allowed to move up and down in the light-permeable lower cover 20, but the light-permeable lower cover 20 is closed, the light-permeable lower cover 20 needs to extend downward to form a space for the pressing shaft 30 to move up and down. When making optical axis mechanical type button among the prior art, because the casing is mostly light-tight structure such as black down, the bottom of casing sets up broken hole down, makes to press down axle 30 and can pass broken hole, lets the lower extreme of pressing down axle 30 can pass broken hole to the outside, makes the perforation of pressing down on the axle 30 be located the outside of casing down to make the light of light emitter 92 transmission can be received by light receiver 93. However, since the light-permeable lower cover 20 in this embodiment is a light-permeable structure, the light emitted from the light emitter 92 can directly penetrate through the light-permeable lower cover 20, and therefore, it is no longer necessary to provide a hole on the light-permeable lower cover 20 for the through hole 31 of the pressing shaft 30 to pass through. Since the light-permeable lower cover 20 does not need to be provided with a broken hole, the waterproof effect can be improved.
As shown in fig. 3 and 4, the circuit board 91 is provided with a mounting hole, the light-permeable lower cover 20 extends downward to form a space for the pressing shaft 30 to move up and down, and a convex portion is formed on the outer bottom wall of the light-permeable lower cover 20 and penetrates through the mounting hole; the light emitter 92 and the light receiver 93 are provided on the upper surface of the circuit board 91, the light emitter 92 being provided on one side of the convex portion, and the light receiver 93 being provided on the other side of the convex portion.
The side walls of the convex part adjacent to the light emitter 92 and the light receiver 93 are respectively a first side wall and a second side wall, the part of the first side wall opposite to the light emitter 92 is a first light-transmitting wall, the side wall of the second side wall opposite to the light receiver 93 is a second light-transmitting wall, the wall thickness of the first light-transmitting wall is smaller than that of the part of the first side wall except the first light-transmitting wall, and the wall thickness of the second light-transmitting wall is smaller than that of the part of the second side wall except the second light-transmitting wall.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (15)
1. The key module is applied to a keyboard, and is characterized by comprising:
an upper cover;
the light-permeable lower cover is combined with the upper cover and comprises a body, one side of the body, facing the upper cover, is provided with an opening, and the side except the opening is of a closed structure; and
one end of the pressing shaft penetrates through the upper cover and protrudes out of the upper cover, and the other end of the pressing shaft is accommodated in the light-permeable lower cover and can reciprocate along the axial direction of the light-permeable lower cover.
2. The key module of claim 1, wherein the upper cover is adhered to the opening of the light-permeable lower cover, and when the key module is disposed on a substrate of the keyboard, the adhesion between the upper cover and the light-permeable lower cover is completely located above the substrate.
3. The key module of claim 1, wherein the light-permeable bottom cover further comprises a ring-shaped flange protruding from an outer periphery of the opening of the body, and the ring-shaped flange abuts against an upper surface of a substrate of the keyboard when the key module is disposed on the substrate.
4. The key module of claim 3, wherein the light-permeable bottom cover further comprises a stopper disposed below the annular flange and forming a groove with the annular flange, when the key module is disposed on the substrate, the substrate is accommodated in the groove, and the stopper abuts against a lower surface of the substrate.
5. The key module of claim 3, wherein the top cover is bonded to the annular flange of the light permeable bottom cover such that the top cover is entirely over the substrate.
6. The key module of claim 3, further comprising a waterproof ring disposed between the annular flange and the upper surface of the base plate.
7. The key module of claim 6, wherein the waterproof ring is integrally formed with the light permeable lower cover.
8. The key module of claim 1, wherein the light-permeable lower cover extends downward to form a space for the pressing shaft to move up and down, and a through hole is formed at an end of the pressing shaft received in the light-permeable lower cover;
when the key module is arranged on a substrate of the keyboard in a penetrating way, a light emitter and a light receiver which are respectively positioned at two opposite sides of the light-permeable lower cover are arranged on the circuit board below the substrate of the keyboard;
when the pressing shaft is not stressed, the pressing shaft abuts against the upper cover, the through hole is positioned above the light emitter and the light receiver, and light rays emitted by the light emitter are blocked by the pressing shaft; when the pressing shaft is pressed by force, the light emitted by the light emitter can pass through the through hole and be received by the light receiver.
9. The key module of claim 8, further comprising an elastic member for moving the pressing shaft upward by an elastic restoring force provided by the elastic member when the force applied to the pressing shaft is removed.
10. The key module of claim 8, wherein the side walls of the light permeable lower cover adjacent to the light emitter and the light receiver are a first side wall and a second side wall, respectively, the portion of the first side wall opposite to the light emitter is a first light permeable wall, and the portion of the second side wall opposite to the light receiver is a second light permeable wall;
the wall thickness of the first light-transmitting wall is smaller than that of the part except the first light-transmitting wall, and the wall thickness of the second light-transmitting wall is smaller than that of the part except the second light-transmitting wall.
11. The keyboard comprises a substrate and a key module, wherein the key module is arranged on the substrate in a penetrating way; characterized in that, the key module includes:
an upper cover;
the light-permeable lower cover is combined with the upper cover and comprises a body, one side of the body, facing the upper cover, is provided with an opening, and the side except the opening is of a closed structure; and
one end of the pressing shaft penetrates through the upper cover and protrudes out of the upper cover, and the other end of the pressing shaft is accommodated in the light-permeable lower cover and can reciprocate along the axial direction of the light-permeable lower cover.
12. The keyboard of claim 11, wherein the top cover is bonded to the opening of the light permeable bottom cover, and the bonding of the top cover to the light permeable bottom cover is entirely over the substrate.
13. The keyboard as claimed in claim 11, wherein the light-permeable bottom cover further comprises a ring-shaped flange protruding from an outer periphery of the opening of the main body, the ring-shaped flange abutting against an upper surface of the base plate.
14. The keyboard of claim 13, wherein the light transmissive cover further comprises a stopper disposed below the annular flange and forming a groove with the annular flange, the substrate is accommodated in the groove, and the stopper abuts against a lower surface of the substrate.
15. The keyboard of claim 11, wherein the light-permeable lower cover extends downward to form a space for the pressing shaft to move up and down, and the pressing shaft has a through hole at an end thereof received in the light-permeable lower cover;
a circuit board is arranged below the substrate, and an optical transmitter and an optical receiver which are respectively positioned at two opposite sides of the light-permeable lower cover are arranged on the circuit board;
when the pressing shaft is not stressed, the pressing shaft abuts against the upper cover, the through hole is positioned above the light emitter and the light receiver, and light rays emitted by the light emitter are blocked by the pressing shaft; when the pressing shaft is pressed by force, the light emitted by the light emitter can pass through the through hole and be received by the light receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110545237.8A CN113410080B (en) | 2019-02-01 | 2019-02-01 | Key module and keyboard |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104674.9A CN111524732A (en) | 2019-02-01 | 2019-02-01 | Key module |
| CN202110545237.8A CN113410080B (en) | 2019-02-01 | 2019-02-01 | Key module and keyboard |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910104674.9A Division CN111524732A (en) | 2019-02-01 | 2019-02-01 | Key module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113410080A true CN113410080A (en) | 2021-09-17 |
| CN113410080B CN113410080B (en) | 2024-02-02 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110545237.8A Active CN113410080B (en) | 2019-02-01 | 2019-02-01 | Key module and keyboard |
| CN201910104674.9A Withdrawn CN111524732A (en) | 2019-02-01 | 2019-02-01 | Key module |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910104674.9A Withdrawn CN111524732A (en) | 2019-02-01 | 2019-02-01 | Key module |
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| Country | Link |
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| CN (2) | CN113410080B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020040727A (en) * | 2002-04-29 | 2002-05-30 | 나강섭 | self radiate key board |
| JP2005149903A (en) * | 2003-11-14 | 2005-06-09 | Shin Etsu Polymer Co Ltd | Cover member for push-button switch |
| CN102081460A (en) * | 2009-11-30 | 2011-06-01 | 致伸科技股份有限公司 | Luminous keyboard |
| CN202549671U (en) * | 2012-04-16 | 2012-11-21 | 叶哲昌 | Key switch waterproof structure |
| US20160284488A1 (en) * | 2015-03-26 | 2016-09-29 | Changshu Sunrex Technology Co., Ltd. | Luminous press key module |
| TW201721693A (en) * | 2015-12-14 | 2017-06-16 | 致伸科技股份有限公司 | Keyboard equipped with optical switch |
| TW201740408A (en) * | 2016-05-03 | 2017-11-16 | 達方電子股份有限公司 | Key structure |
| US20180294114A1 (en) * | 2017-04-07 | 2018-10-11 | Primax Electronics Ltd. | Luminous keyboard |
-
2019
- 2019-02-01 CN CN202110545237.8A patent/CN113410080B/en active Active
- 2019-02-01 CN CN201910104674.9A patent/CN111524732A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020040727A (en) * | 2002-04-29 | 2002-05-30 | 나강섭 | self radiate key board |
| JP2005149903A (en) * | 2003-11-14 | 2005-06-09 | Shin Etsu Polymer Co Ltd | Cover member for push-button switch |
| CN102081460A (en) * | 2009-11-30 | 2011-06-01 | 致伸科技股份有限公司 | Luminous keyboard |
| CN202549671U (en) * | 2012-04-16 | 2012-11-21 | 叶哲昌 | Key switch waterproof structure |
| US20160284488A1 (en) * | 2015-03-26 | 2016-09-29 | Changshu Sunrex Technology Co., Ltd. | Luminous press key module |
| TW201721693A (en) * | 2015-12-14 | 2017-06-16 | 致伸科技股份有限公司 | Keyboard equipped with optical switch |
| TW201740408A (en) * | 2016-05-03 | 2017-11-16 | 達方電子股份有限公司 | Key structure |
| US20180294114A1 (en) * | 2017-04-07 | 2018-10-11 | Primax Electronics Ltd. | Luminous keyboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111524732A (en) | 2020-08-11 |
| CN113410080B (en) | 2024-02-02 |
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