CN217061856U

CN217061856U - Noise reduction keyboard

Info

Publication number: CN217061856U
Application number: CN202220204637.2U
Authority: CN
Inventors: 林立军
Original assignee: Size Dongguan Technology Co ltd
Current assignee: Size Dongguan Technology Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-07-26
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses an amortization keyboard, including a lower cover, set up an upper cover on the lower cover, set up one between upper cover and lower cover and switch on the module, and set up the key cap subassembly on the key subassembly, should switch on the module and include a PCB board, set up in an upper silencer piece of PCB board upper surface, set up in a fixed plate of upper silencer piece upper surface, and set up on the fixed plate and the electricity connect in a key subassembly of PCB board, wherein, should go up the silencer piece periphery and contact in upper cover and lower cover respectively. The utility model provides a amortization keyboard can obviously eliminate the cavity sound, hears not bombing sound and noise, and not harsh ear, remaining less sound is more solid, realizes knocking most sound elimination that sends to reach the mesh of amortization, give the fine experience of user.

Description

Noise reduction keyboard

Technical Field

The utility model relates to a keyboard field especially relates to an amortization keyboard.

Background

With the increasing popularity of computers, keyboards have been widely used as the most common and leading input devices. When the existing keyboard is used, the keycaps on the keyboard are knocked to make a loud sound, and the sound is heard to have obvious bombing sound and noise or even harsh sound due to the cavity sound, so that the user has a very bad experience.

Moreover, each part in the existing keyboard needs to be connected and fixed by a plurality of screws, and the installation and the disassembly are troublesome.

SUMMERY OF THE UTILITY MODEL

To the aforesaid not enoughly, the utility model aims to provide a amortization keyboard can obviously eliminate the cavity sound, sounds not bombing sound and noise, and not harsh, remaining less sound is more solid, realizes knocking the most sound elimination who sends to reach the mesh of amortization, give the fine experience of user.

The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be:

an acoustic keyboard, comprising:

a lower cover;

the upper cover is arranged on the lower cover;

the conducting module is arranged between the upper cover and the lower cover and comprises a PCB, an upper silencing sheet arranged on the upper surface of the PCB, a fixing plate arranged on the upper surface of the upper silencing sheet and a key assembly which is arranged on the fixing plate and electrically connected to the PCB, wherein the periphery of the upper silencing sheet is respectively contacted with the upper cover and the lower cover;

and the key cap component is arranged on the key component and is exposed out of the upper surface of the upper cover.

As a further improvement of the utility model, at least two contact points are arranged between the upper silencing piece and the upper cover, and at least two contact points are arranged between the upper silencing piece and the lower cover.

As a further improvement of the utility model, a plurality of contact clamping blocks are formed on the periphery of the upper silencing plate, the upper end of each contact clamping block is in contact with the upper cover, and the lower end of each contact clamping block is in contact with the lower cover.

As a further improvement of the utility model, the lower cover is provided with a plurality lower clamping position for the lower part of the contact clamping block to be clamped in, and the upper cover is provided with a plurality upper clamping position for the upper part of the contact clamping block to be clamped in.

As a further improvement of the present invention, a lower cover is provided with a lower noise damping sheet, and the lower noise damping sheet is filled in the lower cover and the gap between the conduction modules.

As a further improvement of the present invention, the upper surface of the lower noise damping sheet is formed with a plurality of support members which are abutted against the lower surface of the conduction module.

As a further improvement of the present invention, the supporting member is at least one of a convex point and a rib.

As a further improvement, the lower cover is connected with the lower noise reduction sheet through a plurality of sets of first clamping structures, the first clamping structure comprises a first clamping groove and a first clamping block arranged in the first clamping groove, one of the first clamping groove and the first clamping block is formed on the lower cover, and the other one is formed on the lower noise reduction sheet.

As a further improvement, one side of the several contact clamping block close to the fixing plate is respectively formed with a side clamping groove the edge of the fixing plate is formed with a several side clamping block clamped into the side clamping groove.

As a further improvement of the present invention, at least one first engaging column is formed on the upper surface of the upper silencing plate, and at least one first engaging hole for the first engaging column to be engaged is formed on the fixing plate; at least one second clamping column is formed on the lower surface of the upper silencing sheet, and at least one second clamping hole for the second clamping column to be clamped into is formed in the PCB.

As a further improvement of the utility model, the first clamping column and the second clamping column are both mushroom-head-shaped.

As a further improvement of the utility model, the upper surface of the lower silencing plate is formed with at least one third clamping column, and at least one third clamping hole for the third clamping column to be clamped in is formed on the PCB, the upper silencing plate and the fixed plate respectively.

As a further improvement of the utility model, the third clamping column is in a mushroom head shape.

As a further improvement of the utility model, at least one glue reducing groove is formed on the fixing plate.

As a further improvement, the utility model discloses a through several groups second joint structural connection between upper cover and the lower cover, this second joint structure includes the second draw-in groove, reaches the second fixture block that the card was located in the second draw-in groove, and one of them of this second draw-in groove and second fixture block is formed at the inboard edge of upper cover, and the other is formed at the lower cover outside edge.

As a further improvement of the utility model, the upper silencing plate is made of any one of silica gel, rubber, EVA foam and sponge.

As a further improvement of the utility model, the lower silencing plate is made of any one of silica gel, rubber, EVA foam and sponge.

As a further improvement, the fixing plate is made of any one of aluminum, iron, plastic and glass.

The beneficial effects of the utility model are that:

(1) by additionally arranging the upper silencing sheet in the conduction module and respectively contacting the periphery of the upper silencing sheet with the upper cover and the lower cover, the sound generated by knocking cannot be transmitted to the upper cover and the lower cover under the silencing action of the upper silencing sheet, namely the sound generated by knocking cannot be transmitted to the outer parts of the upper cover and the lower cover; meanwhile, the filling of the upper silencing piece obviously eliminates the cavity sound, no rumble sound and noise are heard, ears are not irritated, and the rest smaller sound is firmer; therefore, most of the sound generated by knocking is eliminated, so that the purpose of noise elimination is achieved, and good experience is brought to users.

(2) Through at the lower cover with switch on the piece of amortization under addding between the module, fill the clearance between the two by the piece of amortization down promptly to reduce and strike the operation time lower cover and switch on the cavity sound between the module, further improve noise cancelling effect, give the better experience of user.

(3) Because the upper silencing sheet and the lower silencing sheet both have elastic characteristics, the hand feeling during pressing operation can be improved, the fingers of a person cannot be damaged, and the human body is good in ergonomics.

(4) The upper cover and the lower cover, the conduction modules and the lower noise reduction sheet are fixed by screws, so that the installation and the positioning are stable, and the installation and the disassembly are convenient and quick.

The above is an overview of the technical solution of the present invention, and the present invention is further explained with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is an overall exploded view of the first embodiment;

FIG. 2 is a schematic external structural view according to the first embodiment;

FIG. 3 is an overall cross-sectional view of the first embodiment;

FIG. 4 is a schematic structural diagram of an upper noise-damping sheet according to an embodiment;

FIG. 5 is a schematic view of a structure of a lower sound-damping sheet and a lower cover according to an embodiment;

fig. 6 is a schematic front view illustrating a conducting module according to an embodiment;

fig. 7 is a schematic view illustrating a backside structure of a conducting module according to an embodiment;

FIG. 8 is a cross-sectional view of a conducting module according to an embodiment;

FIG. 9 is another cross-sectional view of the conducting module according to one embodiment;

FIG. 10 is an exploded view of a conducting module according to one embodiment;

fig. 11 is a schematic front structure diagram of the conduction module in the second embodiment;

fig. 12 is an exploded view of the conducting module according to the second embodiment.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and preferred embodiments.

The first embodiment is as follows:

referring to fig. 1 to 3, the present embodiment provides a noise reduction keyboard, including:

a lower cover 1;

an upper cover 2 arranged on the lower cover 1;

a conducting module 3 disposed between the upper cover 2 and the lower cover 1, wherein the conducting module 3 includes a PCB 31, an upper silencing plate 32 disposed on the upper surface of the PCB 31, a fixing plate 33 disposed on the upper surface of the upper silencing plate 32, and a key assembly 34 disposed on the fixing plate 33 and electrically connected to the PCB 31, specifically, the key assembly 34 is composed of a plurality of keys; in the present embodiment, the periphery of the upper silencing plate 32 contacts with the upper cover 2 and the lower cover 1 respectively;

and a key cap assembly 4 disposed on the key assembly 34 and exposed on the upper surface of the upper cover 2, wherein the key cap assembly 4 is composed of a plurality of key caps, and the key caps correspond to the keys one by one.

When the keyboard is used, any one keycap in the keycap assembly 4 is knocked to act on the corresponding key, and the key is electrically connected with the PCB 31, so that the pressing and conducting function is realized.

By additionally arranging the upper silencing sheet 32 in the conduction module 3 and respectively contacting the periphery of the upper silencing sheet 32 with the upper cover 2 and the lower cover 1, the sound generated by knocking cannot be transmitted to the upper cover 2 and the lower cover 1 under the silencing action of the upper silencing sheet 32, namely the sound generated by knocking cannot be transmitted to the outer parts of the upper cover 2 and the lower cover 1; meanwhile, the filling of the upper silencing sheet 32 obviously eliminates the cavity sound, no rumble sound and noise are heard, ears are not irritated, and the rest smaller sound is firmer; therefore, most of the sound generated by knocking is eliminated, so that the purpose of noise elimination is achieved, and good experience is brought to users.

In this embodiment, there are at least two contact points between the upper sound absorbing sheet 32 and the upper cover 2, and there are at least two contact points between the upper sound absorbing sheet 32 and the lower cover 1. Specifically, as shown in fig. 3 and 4, a plurality of contact latch 321 are formed around the upper silencing plate 32, and the upper end of the contact latch 321 contacts the upper cover 2, and the lower end contacts the lower cover 1. Preferably, the number of the contact latch 321 is 12, as shown in fig. 4, that is, there are 12 contact points between the upper tuning plate 32 and the upper cover 2 and between the upper tuning plate 32 and the lower cover 1, respectively. Through the setting of the peripheral several contact fixture block 321 of upper silencing piece 32, realize the better contact of upper silencing piece 32 in upper cover 2 and lower cover 1, play the effect that blocks sound for the sound of beating the emission can't transmit to upper cover 2 and lower cover 1, realize promptly that the sound of beating the emission can not transmit to upper cover 2 and lower cover 1 outside, reach the mesh of amortization.

As for the connection between the contact latch 321 and the lower cover 1, as shown in fig. 3, a plurality of lower detents 11 for the lower portion of the contact latch 321 to be engaged are formed on the lower cover 1 in the present embodiment; as for the connection between the contact latch 321 and the upper cover 2, as shown in fig. 3, in the present embodiment, a plurality of upper detents 21 for the upper portion of the contact latch 321 to be engaged are formed on the upper cover 2. The upper end and the lower end of the contact clamping block 321 are respectively clamped in the upper clamping position 21 and the lower clamping position 11, so that the upper silencing sheet 32 is stably clamped with the upper cover 2 and the lower cover 1, and the silencing effect is improved.

In order to further reduce the cavity sound, as shown in fig. 1 and 5, in the present embodiment, a lower sound-absorbing sheet 5 is disposed on the lower cover 1, and the lower sound-absorbing sheet 5 is filled in the gap between the lower cover 1 and the conducting module 3, so as to reduce the cavity sound between the lower cover 1 and the conducting module 3 during the knocking operation, and further improve the sound-absorbing effect.

In the present embodiment, as shown in fig. 5, a plurality of supporting members 51 abutting against the lower surface of the conducting module 3 are formed on the upper surface of the lower sound-deadening sheet 5. Specifically, the supporting member 51 is at least one of the convex point 511 and the rib 512. The bumps 511 and/or the ribs 512 serving as the support 51 are used for supporting the conducting module 3 and further filling the gap below the conducting module 3, so that the gap between the lower sound-absorbing sheet 5 and the conducting module 3 is smaller, and the cavity sound is further reduced.

As for the combination manner of the lower cover 1 and the lower sound-absorbing sheet 5, as shown in fig. 5, the lower cover 1 is connected to the lower sound-absorbing sheet 5 through a plurality of sets of first clamping structures 6, each first clamping structure 6 includes a first clamping groove 61 and a first clamping block 62 clamped in the first clamping groove 61, one of the first clamping groove 61 and the first clamping block 62 is formed on the lower cover 1, and the other is formed on the lower sound-absorbing sheet 5. As shown in fig. 5, the first engaging groove 61 is formed on the inner edge of the lower cover 1, and the first engaging block 62 is formed on the outer edge of the lower sound-deadening sheet 5; of course, the first engaging groove 61 may also be formed on the outer edge of the lower sound-deadening sheet 5, and the first engaging block 62 may also be formed on the inner edge of the lower cover 1; or the first locking groove 61 and the first locking block 62 may be formed on the outer edge of the lower noise-damping sheet 5 at the same time, and the first locking groove 61 and the first locking block 62 may be formed at the corresponding positions on the inner edge of the lower cover 1. Thereby, a stable positioning of the lower sound-damping patch 5 on the lower cover 1 is achieved.

In this embodiment, as shown in fig. 4, 6 and 8, a side engaging groove 3211 is formed on one side of each of the plurality of contact engaging blocks 321 close to the fixing plate 33, a plurality of side engaging blocks 331 engaged in the side engaging grooves 3211 are formed on the edge of the fixing plate 33, and the fixing plate 33 is engaged in the side engaging grooves 3211 through the side engaging blocks 331, so that the fixing plate 33 and the upper tuning strip 32 are firmly combined, and the assembly is convenient and fast.

As for the combination manner of the PCB 31, the upper sound absorbing sheet 32 and the fixing plate 33 in the conducting module 3, in this embodiment, at least one first latching post 322 is formed on the upper surface of the upper sound absorbing sheet 32, and at least one first latching hole 332 into which the first latching post 322 is snapped is formed on the fixing plate 33, as shown in fig. 6, 9 and 10, the first latching post 322 is snapped into the first latching hole 332, so that the upper sound absorbing sheet 32 and the fixing plate 33 are combined together; at least one second locking column 323 is formed on the lower surface of the upper tuning plate 32, at least one second locking hole 311 into which the second locking column 323 is inserted is formed on the PCB 31, and as shown in fig. 7, 9 and 10, the second locking column 323 is inserted into the second locking hole 311, so that the upper tuning plate 32 and the PCB 31 are combined together. Specifically, in this embodiment, the first locking pillar 322 and the second locking pillar 311 are both mushroom-shaped. The first clamping column 322 on the upper surface of the upper silencing piece 32 and the second clamping column 323 on the lower surface are combined, so that the PCB 31, the upper silencing piece 32 and the fixing plate 33 are stably positioned together.

In this embodiment, as shown in fig. 1 and fig. 6, at least one glue reducing groove 334 is formed on the fixing plate 33, and the arrangement of the glue reducing groove 334 can reduce the resonance between the keys in the key assembly 34.

In this embodiment, as shown in fig. 1 and 3, the upper cover 2 and the lower cover 1 are connected by a plurality of sets of second clamping structures 7, each second clamping structure 7 includes a second clamping groove 71 and a second clamping block 72 clamped in the second clamping groove 71, one of the second clamping groove 71 and the second clamping block 72 is formed on an inner edge of the upper cover 2, and the other one is formed on an outer edge of the lower cover 1. As shown in fig. 1 and 3, the second locking groove 71 is formed on the outer edge of the lower cover 1, and the second locking block 72 is formed on the inner edge of the upper cover 2; of course, the second locking groove 71 may also be formed on the inner side edge of the upper cover 2, and the second locking block 72 may also be formed on the outer side edge of the lower cover 1; or, the second locking groove 71 and the second locking block 72 may be formed on the outer edge of the lower cover 1 at the same time, and the second locking groove 71 and the second locking block 72 may be formed at the corresponding positions on the inner edge of the upper cover 2. From this, upper cover 2 and lower cover 1 adopt screwless mounting means, realize upper cover 2 and lower cover 1's firm combination, and simple to operate is swift.

In this embodiment, the upper silencing piece 32 is made of any one of silica gel, rubber, EVA foam and sponge, and of course, other materials with similar properties may also be selected for use. Thus, the upper noise cancellation sheet 32 not only has a noise cancellation function, but also has an elastic characteristic, so that a pressing feeling can be increased.

In this embodiment, the lower sound-absorbing sheet 5 is made of any one of silica gel, rubber, EVA foam and sponge, and other materials with similar properties may be used. Thus, the lower sound-deadening sheet 5 has not only a sound-deadening function but also an elastic property, so that the feeling of pressing can be increased.

In this embodiment, the fixing plate 33 is made of any one of aluminum, iron, plastic, and glass fiber, but other materials with similar properties may also be used.

Example two:

the main difference between the first embodiment and the second embodiment is that the combination manner of the PCB 31, the upper silencing plate 32 and the fixing plate 33 in the conducting module 3 is different, as shown in fig. 11 and 12, specifically: at least one third clamping column 52 is formed on the upper surface of the lower sound-absorbing sheet 5, and at least one third clamping hole (312, 324, 333) for the third clamping column 52 to be clamped is formed on the PCB board 31, the upper sound-absorbing sheet 32 and the fixing plate 33 respectively. Specifically, the third clip 52 of the present embodiment has a mushroom-head shape. The third clamping column 52 is clamped into third clamping holes (312, 324 and 333) of the PCB 31, the upper sound-absorbing sheet 32 and the fixing plate 33, so that the lower sound-absorbing sheet 5, the PCB 31, the upper sound-absorbing sheet 32 and the fixing plate 33 are combined together. The lower sound-absorbing sheet 5, the PCB 31, the upper sound-absorbing sheet 32 and the fixing plate 33 are stably positioned together through the third clamping column 52 on the upper surface of the lower sound-absorbing sheet 5.

It should be noted here that the utility model discloses a amortization keyboard is improved to concrete structure, and to concrete control mode, is not the innovation point of the utility model. To the PCB board, the keys and other components involved in the present invention, can be universal standard components or components known to those skilled in the art, and the structure, principle and control mode thereof are known to those skilled in the art through technical manuals or known through routine experimental methods.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that other structures obtained by adopting the same or similar technical features as the above embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. An acoustic keyboard, comprising:

a lower cover;

the upper cover is arranged on the lower cover;

the conducting module is arranged between the upper cover and the lower cover and comprises a PCB, an upper silencing sheet arranged on the upper surface of the PCB, a fixing plate arranged on the upper surface of the upper silencing sheet and a key assembly arranged on the fixing plate and electrically connected to the PCB, wherein the periphery of the upper silencing sheet is respectively contacted with the upper cover and the lower cover;

2. The keyboard of claim 1, wherein there are at least two contact points between the upper silencer blade and the upper cover, and at least two contact points between the upper silencer blade and the lower cover.

3. The noise reduction keyboard according to claim 1, wherein a plurality of contact latch blocks are formed on the periphery of the upper silencing plate, the upper ends of the contact latch blocks contact with the upper cover, and the lower ends of the contact latch blocks contact with the lower cover.

4. The keyboard of claim 3, wherein the lower cover has a plurality of lower detents for engaging with the lower portion of the contact block, and the upper cover has a plurality of upper detents for engaging with the upper portion of the contact block.

5. The keyboard of any one of claims 1 to 4, wherein a lower sound-absorbing sheet is disposed on the lower cover, and the lower sound-absorbing sheet is filled in a gap between the lower cover and the conducting module.

6. The keyboard of claim 5, wherein the lower noise-reducing sheet has a plurality of supporting members formed thereon for abutting against the lower surface of the conducting module.

7. The noise-dampened keyboard of claim 6, wherein the support members are at least one of raised dots and ribs.

8. The keyboard of claim 5, wherein the bottom cover is connected to the bottom sound-damping sheet by a plurality of first engaging structures, each first engaging structure comprises a first engaging groove and a first engaging block engaged with the first engaging groove, one of the first engaging groove and the first engaging block is formed on the bottom cover, and the other one of the first engaging groove and the first engaging block is formed on the bottom sound-damping sheet.

9. The keyboard of claim 3, wherein a side engaging groove is formed on a side of the plurality of contact engaging blocks adjacent to the fixing plate, and a plurality of side engaging blocks are formed on an edge of the fixing plate and engaged with the side engaging grooves.

10. The keyboard of claim 9, wherein at least one first locking column is formed on the upper surface of the upper sound-deadening sheet, and at least one first locking hole into which the first locking column is locked is formed on the fixing plate; at least one second clamping column is formed on the lower surface of the upper silencing sheet, and at least one second clamping hole for the second clamping column to be clamped in is formed on the PCB.

11. The noise reduction keyboard of claim 10, wherein the first and second posts are mushroom-shaped.

12. The keyboard of claim 5, wherein the lower sound-absorbing sheet has at least one third locking pin formed on an upper surface thereof, and the PCB, the upper sound-absorbing sheet and the fixing plate have at least one third locking hole for the third locking pin to be locked therein.

13. The noise-reducing keyboard according to claim 12, wherein the third catch is mushroom-shaped.

14. The noise-reduction keyboard according to claim 1, wherein at least one glue-reduction groove is formed on the fixing plate.

15. The keyboard of claim 1, wherein the top cover and the bottom cover are connected by a plurality of second engaging structures, each second engaging structure comprises a second engaging groove and a second engaging block engaged with the second engaging groove, one of the second engaging groove and the second engaging block is formed on an inner edge of the top cover, and the other one of the second engaging groove and the second engaging block is formed on an outer edge of the bottom cover.

16. The noise reduction keyboard according to claim 1, wherein the upper silencing sheet is made of any one of silica gel, rubber, EVA foam and sponge.

17. The noise reduction keyboard according to claim 5, wherein the lower noise reduction sheet is made of any one of silica gel, rubber, EVA foam and sponge.

18. The keyboard of claim 1, wherein the fixing plate is made of any one of aluminum, iron, plastic, and glass fiber.