CN215220579U - Thin type key - Google Patents
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- CN215220579U CN215220579U CN202121035808.5U CN202121035808U CN215220579U CN 215220579 U CN215220579 U CN 215220579U CN 202121035808 U CN202121035808 U CN 202121035808U CN 215220579 U CN215220579 U CN 215220579U
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Abstract
The utility model discloses a slim button, it contains base plate, lower insulating substrate, lower circuit, goes up insulating substrate, goes up switch contact, key cap and elasticity actuating element. The substrate has a through opening. The lower circuit is formed on the lower insulating substrate and comprises at least two lower switch contacts. The upper switch contact is formed on the upper insulating substrate. The upper insulating base material is arranged on the upper surface of the substrate, and the lower insulating base material is arranged on the lower surface of the substrate, so that the upper switch contact and the at least two lower switch contacts are arranged in the through opening and aligned with each other. The elastic actuating element is arranged between the keycap and the upper insulating base material and is positioned above the periphery of the through opening. When the keycap is pressed and moves to the pressing position, the elastic actuating element deforms to abut against the upper insulating base material and deform the upper insulating base material, so that the upper switch contact contacts with the at least two lower switch contacts. The thin key of the utility model can reduce the whole thickness.
Description
Technical Field
The present invention relates to a thin key, and more particularly to a thin key having a substrate as an isolation layer of a membrane switch layer.
Background
Keyboards are already a common input peripheral device on the market. The keys of the prior art keyboard all include a bottom plate and a thin film switch circuit layer. The related art thin film circuit layer includes a thin film switch layer including an upper circuit film, an isolation layer, and a lower circuit film. The isolation layer is arranged between the upper circuit film and the lower circuit film to separate an upper switch contact of the upper circuit film from a lower switch contact of the lower circuit film. Therefore, the thickness of the prior art key is necessarily limited by the thickness of its base plate plus the thickness of the membrane switch circuit layer.
In addition, the light-emitting key of the prior art includes a light guide plate in addition to the bottom plate and the thin film switch circuit layer. Light emitted by the light emitting element (e.g., light emitting diode element) enters from the side surface of the light guide plate and is guided by the light guide plate to the keycap. With the size of commercial light emitting devices being gradually reduced, the prior art light emitting key uses a small-sized light emitting device, and the light emitting device is positioned to emit light upward to illuminate the key cap. The prior art light-emitting key using the upward light-emitting device can eliminate the light guide plate, but can not eliminate the thickness of the circuit layer for electrically connecting the light-emitting device.
Obviously, the prior art key still has a thinned space regardless of having a light emitting function.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, the present invention provides a thin key to solve the above problems.
Therefore, the utility model aims to solve the technical problem that a slim button is provided, this slim button contains: a substrate having a first upper surface, a first lower surface and a through opening; a lower insulating substrate having a second upper surface and a second lower surface; a first lower circuit formed on the second upper surface and including at least two lower switch contacts, wherein the lower insulating substrate is disposed on the first lower surface of the substrate with the second upper surface such that the at least two lower switch contacts are disposed within the through opening; an upper insulating substrate having a third upper surface and a third lower surface; an upper switch contact formed on the third lower surface, the upper insulating substrate being disposed on the first upper surface of the substrate with the third lower surface such that the upper switch contact is disposed within the through opening and the upper switch contact is aligned with the at least two lower switch contacts; a keycap disposed above the upper insulating substrate; the lifting mechanism is arranged between the substrate and the keycap and limits the keycap to move between an unpressed position and a pressed position; and the elastic actuating element is arranged between the keycap and the upper insulating base material and is positioned above the periphery of the through opening, and the elastic actuating element comprises an actuating column, wherein when the keycap is pressed and moves to the pressing position, the elastic actuating element deforms, and the actuating column deforms the upper insulating base material so that the upper switch contact contacts with the at least two lower switch contacts.
As an optional technical solution, a second lower circuit is formed on the second upper surface; and at least one light emitting element electrically connected with the second lower circuit, wherein the at least one light emitting element and the second lower circuit are arranged in the through opening, the at least one light emitting element is used for emitting light upwards, and the upper insulating substrate and the elastic actuating element are transparent.
As an optional technical solution, the substrate has at least one through hole, and the thin key further includes: a second lower circuit formed on the second upper surface; and at least one light emitting element electrically connected with the second lower circuit, wherein each light emitting element corresponds to one of the at least one through hole, each light emitting element is arranged in the corresponding through hole, the at least one light emitting element is used for emitting light upwards, and the upper insulating substrate is transparent.
The utility model provides a slim button, this slim button contains: a substrate having a first upper surface, a first lower surface and a through opening; a lower insulating substrate having a second upper surface; a first lower circuit formed on the second upper surface and including at least two switch contacts, wherein the lower insulating substrate is disposed on the first lower surface of the substrate with the second upper surface such that the at least two switch contacts are disposed in the through opening; the keycap is arranged above the substrate; the lifting mechanism is arranged between the substrate and the keycap and limits the keycap to move between an unpressed position and a pressed position; the elastic actuating element is arranged between the keycap and the substrate, the elastic actuating element is positioned above the periphery of the through opening, the elastic actuating element comprises an actuating column, and at least the tail end of the actuating column is conductive; when the keycap is pressed and moves to the pressing position, the elastic actuating element deforms to enable the tail end of the actuating column to penetrate into the through opening to contact with the at least two switch contacts.
Alternatively, the substrate is formed of a metal or ceramic material.
As an optional technical solution, a second lower circuit is formed on the second upper surface; and at least one light-emitting element electrically connected with the second lower circuit, wherein the at least one light-emitting element and the second lower circuit are arranged in the through opening, the at least one light-emitting element is used for emitting light upwards, and the elastic actuating element is transparent.
As an optional technical solution, the substrate has at least one through hole, and the thin key further includes: a second lower circuit formed on the second upper surface; and at least one light emitting element electrically connected with the second lower circuit, wherein each light emitting element corresponds to one of the through holes, each light emitting element and the second lower circuit are arranged in the through hole corresponding to the light emitting element, and the at least one light emitting element is used for emitting light upwards.
As an optional technical solution, the key cap has a light-transmitting area, and the light emitted by the at least one light-emitting element is emitted to the light-transmitting area of the key cap.
As an optional technical solution, the light-transmitting area is used for presenting a pattern, and the pattern represents one of characters, numbers, symbols and function keys.
As an alternative solution, the light-transmitting area represents an indicator light.
Compared with the prior art, to sum up, the thin key of the utility model comprises a substrate, a lower insulating substrate, a lower circuit, an upper insulating substrate, an upper switch contact, a keycap and an elastic actuating element. The substrate is arranged between the upper insulating base material and the lower insulating base material, namely the upper insulating base material is arranged on the upper surface of the substrate, the lower insulating base material is arranged on the lower surface of the substrate, and the substrate is provided with a through opening. The lower circuit is formed on the lower insulating substrate and comprises at least two lower switch contacts. The upper switch contact is formed on the upper insulating substrate. So that the upper switch contact and the at least two lower switch contacts are disposed in the through opening and aligned with each other. The elastic actuating element is arranged between the keycap and the upper insulating base material and is positioned above the periphery of the through opening. When the keycap is pressed and moves to the pressing position, the elastic actuating element deforms to abut against the upper insulating base material and deform the upper insulating base material, so that the upper switch contact contacts with the at least two lower switch contacts. The utility model discloses a slim button to the isolation layer on base plate conduct membrane switch layer has reduced the thickness of the isolation layer on prior art's membrane switch layer, and then reduces the whole thickness of button.
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Drawings
Fig. 1 is an external view of a keyboard equipped with thin keys according to a first preferred embodiment of the present invention.
Fig. 2 is a partial cross-sectional view of the thin key of fig. 1 taken along line a-a.
Fig. 3 is a partial cross-sectional view of a variation of the thin key of fig. 1 taken along line a-a.
Fig. 4 is an external view of a keyboard with thin keys according to a second preferred embodiment of the present invention.
Fig. 5 is a partial cross-sectional view of the thin key of fig. 1 taken along line B-B.
Fig. 6 is a partial cross-sectional view of a variation of the thin key of fig. 1 taken along line B-B.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1, 2 and 3, a thin key 1 according to a first preferred embodiment of the present invention is schematically depicted in the drawings. Fig. 1 is an external view schematically showing a thin key 1 according to a first preferred embodiment of the present invention. Fig. 2 is a partial cross-sectional view of the thin key 1 of fig. 1 taken along line a-a. Fig. 3 is a partial cross-sectional view of a variant of the thin key 1 of fig. 1 along the line a-a.
As shown in fig. 1 and 2, a thin key 1 according to a first preferred embodiment of the present invention includes a substrate 10, a lower insulating substrate 11, a first lower circuit 12, an upper insulating substrate 13, an upper switch contact 14, a key cap 15, a lifting mechanism 16, and an elastic actuator 17.
The substrate 10 has a first upper surface 102, a first lower surface 104 and a through opening 106.
The lower insulating substrate 11 has a second upper surface 112 and a second lower surface 114. The first lower circuit 12 is formed on the second upper surface 112 of the lower insulating substrate 11 and includes at least two lower switch contacts 122. The lower insulating base material 11 is disposed on the first lower surface 104 of the substrate 10 with the second upper surface 112, such that at least two lower switch contacts 122 are disposed in the through openings 106 of the substrate 10.
The upper insulating substrate 13 has a third upper surface 132 and a third lower surface 134. The upper switch contact 14 is formed on the third lower surface 134 of the upper insulating substrate 13. The upper insulating base 13 is disposed on the first upper surface 102 of the substrate 10 with the third lower surface 134, such that the upper switch contact 14 is disposed in the through opening 106 of the substrate 10 and aligned with the at least two lower switch contacts 122.
The key cap 15 is placed over the upper insulating substrate 13. The elevating mechanism 16 is disposed between the substrate 10 and the key top 15. The elevating mechanism 16 restricts the movement of the key top 15 between the non-pressed position and the pressed position. The elastic actuating element 17 is disposed between the key cap 15 and the upper insulating base 13, and is located above the periphery of the through opening 106 of the substrate 10. The resilient actuating element 17 comprises an actuating cylinder 172.
When the key cap 15 is pressed and moved to the pressed position, the elastic actuating element 17 is deformed to push the actuating pillar 172 against the upper insulating substrate 13 and deform the upper insulating substrate 13, so that the upper switch contact 14 contacts at least two lower switch contacts 122. When the key cap 15 is released, the elastic actuating element 17 provides a restoring force required for the key cap 15 to return to the non-depressed position, and separates the actuating column 172 from the upper insulating substrate 13. It should be emphasized that the thin key 1 according to the first preferred embodiment of the present invention uses the substrate 10 as the isolation layer of the membrane switch layer, so that the thickness of the isolation layer of the membrane switch layer in the prior art is reduced.
In one embodiment, the substrate 10 may be formed of metal, but the invention is not limited thereto. The substrate 10 may be formed of other materials having high rigidity (for example, ceramic materials).
Further, as also shown in fig. 2, the thin key 1 according to the first preferred embodiment of the present invention further includes a second lower circuit 18 and at least one light emitting element 19. The second lower circuit 18 is formed on the second upper surface 112 of the lower insulating substrate 11. At least one light emitting device 19 is electrically connected to the second lower circuit 18 and disposed in the through opening 106 of the substrate 10. The at least one light emitting device 19 is used for emitting light upward. The upper insulating substrate 13 and the resilient actuating member 17 are light-transmissive. The key cap 15 has a light shielding layer 150 and a light transmitting region 152. In the example shown in fig. 1 and 2, the light-transmitting area 152 presents a pattern, which represents one of a character, a number, a symbol and a function key, but the invention is not limited thereto. According to the thin key 1 of the first preferred embodiment of the present invention, the transparent region 152 on the key cap 15 can also be a representative indicator light. Light emitted by the at least one light emitting element 19 is directed toward the light transmissive region 152 of the key cap 15 and through the light transmissive region 152 of the key cap 15.
Further, as shown in fig. 3, the thin key 1 according to the first preferred embodiment of the present invention further includes a second lower circuit 18 and at least one light emitting device 19. The difference from the thin key 1 shown in fig. 2 is that the substrate 10 has at least one through hole 108. The second lower circuit 18 is formed on the second upper surface 112 of the lower insulating substrate 11. At least one light emitting device 19 is electrically connected to the second lower circuit 18. Each light emitting device 19 corresponds to one of the at least one through hole 108 of the substrate 10, and each light emitting device 19 and the second lower circuit 18 are disposed in the corresponding through hole 108. The at least one light emitting device 19 is used for emitting light upward. The upper insulating substrate 13 is light-transmissive. Similarly, the light-transmissive region 152 on the key cap 15 may represent a pattern or represent an indicator light. Light emitted by the at least one light emitting element 19 is directed toward the light transmissive region 152 of the key cap 15 and through the light transmissive region 152 of the key cap 15. The elements and components in fig. 3 having the same numbers as those in fig. 2 have the same or similar structures and functions, and are not repeated herein.
It should be emphasized that, if the thin key 1 according to the first preferred embodiment of the present invention employs the light emitting element 19, the second lower circuit 18 electrically connected to the light emitting element 19 is formed on the lower insulating substrate 11 as well as the first lower circuit 12 including the lower switch contact 122. Therefore, if the thin key 1 according to the first preferred embodiment of the present invention has a light emitting function, the thickness of the key as a whole will not increase the thickness of another layer of insulating substrate.
In practical applications, according to the thin key 1 of the first preferred embodiment of the present invention, the substrate 10 has at least one through hole 108. The light emitting element 19 may be disposed in both the through opening 106 and the through hole 108 of the substrate 10.
Referring to fig. 4, 5 and 6, a thin key 2 according to a second preferred embodiment of the present invention is schematically depicted in the drawings. Fig. 4 is an external view schematically showing a thin key 2 according to a second preferred embodiment of the present invention. Fig. 5 is a partial cross-sectional view of the thin key 2 of fig. 4 taken along line B-B. Fig. 6 is a partial cross-sectional view of a variation of the thin key 2 of fig. 4 taken along line B-B.
As shown in fig. 4 and 5, the thin key 2 according to the second preferred embodiment of the present invention includes a substrate 20, a lower insulating substrate 21, a first lower circuit 22, a key cap 23, a lifting mechanism 24, and an elastic actuator 25.
The substrate 20 has a first upper surface 202, a first lower surface 204, and a through opening 206.
The lower insulating substrate 21 has a second upper surface 212 and a second lower surface 214. The first lower circuit 22 is formed on the second upper surface 212 of the lower insulating substrate 21, and the first lower circuit 22 includes at least two switch contacts 222. The lower insulating substrate 21 is disposed on the first lower surface 204 of the substrate 20 with the second upper surface 212, such that at least two switch contacts 222 are disposed in the through openings 206 of the substrate 20.
The key cap 23 is disposed above the substrate 20. The elevating mechanism 24 is disposed between the substrate 20 and the key cap 23. The elevating mechanism 24 restricts the movement of the key top 23 between the non-pressed position and the pressed position. The resilient actuation element 25 is arranged between the key cap 23 and the substrate 20, and the resilient actuation element 25 is located above the periphery of the through opening 206 of the substrate 20. The resilient actuating element 25 includes a post 252, and at least an end 2522 of the post 252 is electrically conductive.
When the key cap 23 is pressed and moved to the pressed position, the elastic actuating element 25 is deformed to cause the end 2522 of the actuating rod 252 to penetrate into the through opening 206 of the substrate 20, and then to contact at least two switch contacts 222. When the key cap 23 is released, the elastic actuating element 25 provides a restoring force required for the key cap 23 to return to the non-depressed position, and separates the end 2522 of the actuating cylinder 252 from the at least two switch contacts 222. It should be emphasized that, according to the thin key 2 of the second preferred embodiment of the present invention, the substrate 20 is used as the isolation layer of the membrane switch layer, and the upper circuit film is removed, so that the thickness of the isolation layer of the membrane switch layer and the upper circuit film of the prior art is reduced.
In one embodiment, the substrate 20 may be formed of metal, but the invention is not limited thereto. The substrate 20 may be formed of other high-rigidity materials (e.g., ceramic materials).
Further, as also shown in fig. 5, according to the thin key 2 of the second preferred embodiment of the present invention, the thin key 2 further includes a second lower circuit 26 and at least one light emitting element 27. The second lower circuit 26 is formed on the second upper surface 212 of the lower insulating substrate 21. At least one light emitting device 27 is electrically connected to the second lower circuit 26, and at least one light emitting device 27 and the second lower circuit 26 are disposed in the through opening 206 of the substrate 20. At least one light emitting element 27 is used to emit light upward. The resilient actuating element 25 is light-transmissive. The key cap 23 has a light shielding layer 230 and a light transmitting region 232. In the example shown in fig. 4 and 5, the light-transmitting area 232 presents a pattern, which represents one of a character, a number, a symbol and a function key, but the invention is not limited thereto. According to the thin key 2 of the second preferred embodiment of the present invention, the transparent area 232 on the key cap 23 can also be a representative indicator light. Light emitted by the at least one light emitting element 27 is directed towards the light transmissive region 232 of the key cap 23 and passes through the light transmissive region 232 of the key cap 23.
Further, as shown in fig. 6, according to the thin key 2 of the second preferred embodiment of the present invention, the thin key 2 further includes a second lower circuit 26 and at least one light emitting element 27. The difference from the thin key 2 shown in fig. 5 is that the substrate 20 has at least one through hole 208. The second lower circuit 26 is formed on the second upper surface 212 of the lower insulating substrate 21. At least one light emitting device 27 is electrically connected to the second lower circuit 26. Each light emitting device 27 corresponds to one of the at least one through holes 208 of the substrate 20, and each light emitting device 27 and the second lower circuit 26 are disposed in the corresponding through hole 208. At least one light emitting element 27 is used to emit light upward. Similarly, the light-transmissive region 232 of the key cap 23 may represent a pattern or represent an indicator light. Light emitted by the at least one light emitting element 27 is directed towards the light transmissive region 232 of the key cap 23 and passes through the light transmissive region 232 of the key cap 23. The elements and components in fig. 6 having the same numbers as those in fig. 5 have the same or similar structures and functions, and are not repeated herein.
It should be emphasized that, if the thin key 2 according to the second preferred embodiment of the present invention employs the light emitting element 27, the second lower circuit 26 electrically connected to the light emitting element 27 is formed on the lower insulating substrate 21 as well as the first lower circuit 22 including the lower switch contact 222. Therefore, according to the thin key 2 of the second preferred embodiment of the present invention, if it has the light emitting function, the thickness of the whole thin key will not increase the thickness of another layer of insulating substrate.
In practical applications, according to the thin key 2 of the second preferred embodiment of the present invention, the substrate 20 has at least one through hole 208. The light emitting element 27 can be disposed in both the through opening 206 and the through hole 208 of the substrate 20.
By the above detailed description of the present invention, it can be clearly understood that the thin key of the present invention uses the substrate as the isolation layer of the membrane switch layer. Further, according to the thin key of the present invention, if the light emitting element is used, the circuit electrically connected to the light emitting element is formed on the lower insulating substrate in the same manner as the lower circuit including the lower switch contact. Therefore, the utility model discloses a thickness of slim button can attenuate by a wide margin.
To sum up, the thin key of the present invention comprises a substrate, a lower insulating substrate, a lower circuit, an upper insulating substrate, an upper switch contact, a key cap, and an elastic actuator. The substrate is arranged between the upper insulating base material and the lower insulating base material, namely the upper insulating base material is arranged on the upper surface of the substrate, the lower insulating base material is arranged on the lower surface of the substrate, and the substrate is provided with a through opening. The lower circuit is formed on the lower insulating substrate and comprises at least two lower switch contacts. The upper switch contact is formed on the upper insulating substrate. So that the upper switch contact and the at least two lower switch contacts are disposed in the through opening and aligned with each other. The elastic actuating element is arranged between the keycap and the upper insulating base material and is positioned above the periphery of the through opening. When the keycap is pressed and moves to the pressing position, the elastic actuating element deforms to abut against the upper insulating base material and deform the upper insulating base material, so that the upper switch contact contacts with the at least two lower switch contacts. The utility model discloses a slim button to the isolation layer on base plate conduct membrane switch layer has reduced the thickness of the isolation layer on prior art's membrane switch layer, and then reduces the whole thickness of button.
Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.
Claims (10)
1. A thin key, comprising:
a substrate having a first upper surface, a first lower surface and a through opening;
a lower insulating substrate having a second upper surface and a second lower surface;
a first lower circuit formed on the second upper surface and including at least two lower switch contacts, wherein the lower insulating substrate is disposed on the first lower surface of the substrate with the second upper surface such that the at least two lower switch contacts are disposed within the through opening;
an upper insulating substrate having a third upper surface and a third lower surface;
an upper switch contact formed on the third lower surface, the upper insulating substrate being disposed on the first upper surface of the substrate with the third lower surface such that the upper switch contact is disposed within the through opening and the upper switch contact is aligned with the at least two lower switch contacts;
a keycap disposed above the upper insulating substrate;
the lifting mechanism is arranged between the substrate and the keycap and limits the keycap to move between an unpressed position and a pressed position; and
an elastic actuating element disposed between the keycap and the upper insulating base material and located above the periphery of the through opening, the elastic actuating element including an actuating column,
when the key cap is pressed and moves to the pressing position, the elastic actuating element deforms, and the upper insulating base material deforms through the actuating column, so that the upper switch contact contacts with the at least two lower switch contacts.
2. The thin key of claim 1, comprising:
a second lower circuit formed on the second upper surface; and
at least one light-emitting element electrically connected with the second lower circuit, wherein the at least one light-emitting element and the second lower circuit are arranged in the through opening, the at least one light-emitting element is used for emitting light upwards, and the upper insulating substrate and the elastic actuating element are transparent.
3. The thin key of claim 1, wherein the substrate has at least one through hole, the thin key further comprising:
a second lower circuit formed on the second upper surface; and
at least one light emitting element electrically connected to the second lower circuit, each light emitting element corresponding to one of the at least one through hole, each light emitting element disposed in the corresponding through hole, the at least one light emitting element for emitting light upward, wherein the upper insulating substrate is transparent.
4. A thin key, comprising:
a substrate having a first upper surface, a first lower surface and a through opening;
a lower insulating substrate having a second upper surface;
a first lower circuit formed on the second upper surface and including at least two switch contacts, wherein the lower insulating substrate is disposed on the first lower surface of the substrate with the second upper surface such that the at least two switch contacts are disposed in the through opening;
the keycap is arranged above the substrate;
the lifting mechanism is arranged between the substrate and the keycap and limits the keycap to move between an unpressed position and a pressed position; and
the elastic actuating element is arranged between the keycap and the substrate, the elastic actuating element is positioned above the periphery of the through opening, the elastic actuating element comprises an actuating column, and at least the tail end of the actuating column is conductive;
when the keycap is pressed and moves to the pressing position, the elastic actuating element deforms to enable the tail end of the actuating column to penetrate into the through opening to contact with the at least two switch contacts.
5. The thin key of claim 1 or 4, wherein the substrate is formed of a metal or ceramic material.
6. The thin key of claim 4, comprising:
a second lower circuit formed on the second upper surface; and
at least one light-emitting element electrically connected with the second lower circuit, wherein the at least one light-emitting element and the second lower circuit are arranged in the through opening, the at least one light-emitting element is used for emitting light upwards, and the elastic actuating element is transparent.
7. The thin key of claim 4, wherein the substrate has at least one through hole, the thin key further comprising:
a second lower circuit formed on the second upper surface; and
at least one light emitting element electrically connected with the second lower circuit, each light emitting element corresponding to one of the at least one through hole, each light emitting element and the second lower circuit being disposed in the corresponding through hole, the at least one light emitting element being used for emitting light upward.
8. The thin key of any one of claims 2, 3, 6, and 7, wherein the key cap has a transparent region, and the light emitted from the at least one light emitting element is directed to the transparent region of the key cap.
9. The thin key of claim 8, wherein the light-transmissive region is used to present a pattern, the pattern representing one of a character, a number, a symbol and a function key.
10. The thin key of claim 8, wherein the light-transmissive area represents an indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121035808.5U CN215220579U (en) | 2021-05-14 | 2021-05-14 | Thin type key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121035808.5U CN215220579U (en) | 2021-05-14 | 2021-05-14 | Thin type key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215220579U true CN215220579U (en) | 2021-12-17 |
Family
ID=79419325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121035808.5U Active CN215220579U (en) | 2021-05-14 | 2021-05-14 | Thin type key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215220579U (en) |
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2021
- 2021-05-14 CN CN202121035808.5U patent/CN215220579U/en active Active
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