CN218038962U

CN218038962U - A button amortization structure for pressing return

Info

Publication number: CN218038962U
Application number: CN202222016033.8U
Authority: CN
Inventors: 李永彭; 梁云; 周罗光
Original assignee: Dongguan Banruo Electronic Technology Co ltd
Current assignee: Dongguan Banruo Electronic Technology Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-12-13
Anticipated expiration: 2032-08-01

Abstract

The application discloses a button amortization structure for pressing return belongs to the technical field of keyboard, and it includes lower cover, PCB board, elastic backing plate, upper cover and a plurality of button, the upper cover is installed in lower cover one side, PCB board and elastic backing plate all are located the upper cover and enclose the region of establishing with the lower cover, and are a plurality of the button is installed in the upper cover, elastic backing plate is including bearing the portion, the portion that resets and butt portion, bearing the portion and being close to the upper cover setting, the portion that resets is provided with a plurality ofly and equal fixed connection in one side of bearing the portion towards the upper cover with the button one-to-one, butt portion and the portion that resets one-to be provided with a plurality ofly and respectively fixed connection in the one side that the upper cover was kept away from in the portion that resets, the portion that resets drives butt portion and button and resets after pressing. The application has the effect that the button is not easy to generate operating noise due to the touch with the PCB when being pressed.

Description

A button amortization structure for pressing return

Technical Field

The application relates to the field of keyboards, in particular to a key silencing structure for pressing a return.

Background

The keyboard is the most common and the most important input equipment in life, and English letters, chinese characters, numbers, punctuations and the like can be input into a computer through the keyboard, so that commands, input data and the like are sent to the computer.

The keyboard in the related art generally comprises a lower cover, a PCB (printed circuit board), an upper cover and keys, wherein the upper cover is arranged on the lower cover, the PCB is arranged between the upper cover and the lower cover, the keys are arranged on the upper cover, the keys can send commands or input data to a computer when pressing and abutting against input contacts arranged in a one-to-one correspondence manner between the PCB and the keys, and the keys are usually reset through self structures after being pressed, so that the next instruction input is facilitated.

In view of the above-mentioned related art, the inventor believes that, in the process of inputting data or issuing a command to a computer by pressing a key, the touch between the key and a PCB is prone to generate operation noise.

SUMMERY OF THE UTILITY MODEL

In order to be difficult for appearing when making the button press because of the condition that produces operating noise mutually with PCB mutually touching, this application provides a button amortization structure for pressing the return.

The application provides a button amortization structure for pressing return adopts following technical scheme:

the utility model provides a button amortization structure for pressing return, includes lower cover, PCB board, elastic backing plate, upper cover and a plurality of button, the upper cover is installed in lower cover one side, PCB board and elastic backing plate all are located the upper cover and enclose the region of establishing with the lower cover, and are a plurality of the button is installed in the upper cover, elastic backing plate is including bearing the portion, the portion and butt portion that reset, it is close to the upper cover setting to bear the portion, the portion that resets is provided with a plurality ofly and equal fixed connection in one side of bearing the portion towards the upper cover with the button one-to-one, butt portion and the one-to-one that resets are provided with a plurality ofly and respectively fixed connection in the one side that the upper cover was kept away from in each portion that resets, the portion that resets drives butt portion and button and resets after pressing.

Through adopting above-mentioned technical scheme, when pressing the button, the portion that resets drives butt portion and together moves towards PCB board place direction, butt portion butt when the input contact of PCB board, send out the order or realize data input to the computer, at this in-process, the setting of the portion that resets and butt portion plays the cushioning effect when pressing the button, thereby difficult appearance produces the condition of operating noise because of touching mutually with PCB board when making the button press, the back is pressed to the button, thereby the portion that resets drives butt portion and button and resets and be convenient for the user of service to the next time input of computer.

Optionally, the reset portion is integrally connected to the bearing portion, the reset portion is in clamping fit with the key, a containing groove is concavely formed in one side, facing the PCB, of the reset portion, and the abutting portion is integrally connected to the reset portion and located in the containing groove.

Through adopting above-mentioned technical scheme, the portion of bearing, the portion that resets and butt portion body coupling's setting is convenient for realize the machine-shaping of elastic backing plate, and the setting of storage tank makes the portion that resets have great deformation volume to convenient to use person sends the order or realizes data input to the computer through exerting less power to the button, the portion that resets and the setting of button looks joint are convenient for guarantee that the user presses the stability when the portion that resets through the button.

Optionally, the reset portion includes a first reset segment and a second reset segment, the first reset segment is connected to the bearing portion, the second reset segment is connected to one end of the first reset segment away from the bearing portion, the second reset segment is matched with the key joint, and the cross-sectional dimension of the first reset segment is greater than that of the second reset segment.

Through adopting above-mentioned technical scheme, when second reset section and button joint cooperation, first reset section has carried on spacingly to button position to be favorable to guaranteeing the stability of button and second reset section joint cooperation back position, be convenient for realize falling the stable of making an uproar when knocking the button.

Optionally, the accommodating groove is disposed in the first resetting section, and the free end of the first resetting section facing the second resetting section is in a circular truncated cone shape with a gradually decreasing cross-sectional dimension.

By adopting the technical scheme, when the first reset segment is pressed, the stress applied to the second reset segment by the first reset segment is more concentrated, so that a user can send a command to a computer or realize data input by applying smaller force to the key.

Optionally, the second resetting section is provided with two sections, and the sectional dimension of the section of the second resetting section far away from the first resetting section is smaller than the sectional dimension of the section of the second resetting section near the first resetting section.

By adopting the technical scheme, the second reset section has certain gap transition when being matched with the key in a clamping way, so that the stable connection between the second reset section and the key is convenient to realize.

Optionally, the button includes key cap portion and fixed connection in the installation department of key cap portion, the mounting groove has been seted up to the installation department, the cooperation of second reset section and mounting groove joint, installation breach has been seted up to the outer peripheral face of installation department, installation breach extends to the installation department and keeps away from the one end of key cap portion.

Through adopting above-mentioned technical scheme, being provided with of installation breach does benefit to under the prerequisite of guaranteeing installation department structural strength, reduces the friction between second reset section and the mounting groove cell wall to be connected between second reset section and the installation department of being convenient for further.

Optionally, one end of the second resetting section, which is far away from the first resetting section, is concavely provided with a lightening hole.

By adopting the technical scheme, the lightening holes are arranged, so that the weight of the elastic base plate is reduced on the premise of ensuring the noise reduction performance of the elastic base plate, the portability of the keyboard is improved, and the material cost is saved.

Optionally, the corner of the abutting portion towards one end of the PCB is in arc transition.

Through adopting above-mentioned technical scheme, butt portion is difficult for appearing causing the condition to the PCB fish tail because of edges and corners department and PCB mutually touching when pressing the PCB board.

Optionally, one side of the lower cover facing the PCB is fixedly provided with a supporting portion corresponding to each abutting portion one to one.

Through adopting above-mentioned technical scheme, when the setting up of supporting part makes butt portion touch the PCB board, the supporting part can support the PCB board more stably to make the difficult condition of appearing damaging because of local atress too big of PCB board, be favorable to guaranteeing the life of PCB board.

Optionally, the elastic backing plate further comprises a plurality of limiting parts, the limiting parts are integrally connected to one side, facing the upper cover, of the bearing part, and the upper cover is provided with limiting grooves which are arranged in a one-to-one correspondence with the limiting parts and are respectively matched with the limiting parts in a clamping manner.

Through adopting above-mentioned technical scheme, the cooperation of spacing portion and spacing groove plays further limiting displacement to the elastic backing plate to be favorable to further guaranteeing the installation stability between elastic backing plate and the upper cover.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the process of pressing the key, the arrangement of the reset part and the abutting part plays a role in buffering the key when pressed, so that the condition that operation noise is generated due to the fact that the key is touched with a PCB (printed circuit board) is not easy to occur when the key is pressed.

2. The bearing part, the reset part and the abutting part are integrally connected, so that the elastic base plate can be machined and molded conveniently, the reset part has larger deformation due to the arrangement of the accommodating groove, and a user can send a command to a computer or realize data input by applying smaller force to the keys.

3. When the second reset section is matched with the key in a clamping manner, the first reset section limits the position of the key, so that the stability of the position of the key after the key is matched with the second reset section in a clamping manner is guaranteed, and the stable noise reduction when the key is knocked is realized conveniently.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is an exploded view of the overall structure of the embodiment of the present application.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 4 is an exploded view of the overall structure from another perspective in the embodiment of the present application.

Fig. 5 is a partially enlarged schematic view of a portion B in fig. 4.

Fig. 6 is a partially enlarged schematic view of a portion C in fig. 4.

Description of reference numerals:

1. a lower cover; 2. a PCB board; 3. an elastic backing plate; 301. a bearing part; 302. a reset section; 3021. a first reset segment; 3022. a second reset segment; 303. an abutting portion; 4. an upper cover; 5. pressing a key; 501. a keycap portion; 502. an installation part; 6. fixing grooves; 7. a containing groove; 8. a support portion; 9. installing a notch; 10. lightening holes; 11. a limiting part; 12. a limiting groove; 13. and (7) installing a groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a button amortization structure for pressing return. Referring to fig. 1 and 2, a button amortization structure for pressing the return includes lower cover 1, PCB board 2, elastic backing plate 3, upper cover 4 and a plurality of button 5, wherein, upper cover 4 passes through bolt fixed mounting in lower cover 1 one side, and PCB board 2 and elastic backing plate 3 all lie in the region that upper cover 4 and lower cover 1 enclose and establish, and PCB board 2 lies in one side that elastic backing plate 3 is close to upper cover 4.

Referring to fig. 2 and 3, the upper cover 4 is provided with a plurality of fixing grooves 6 corresponding to the keys 5 one by one and penetrating through the keys 5 for respectively installing the keys 5. The material of the elastic backing plate 3 is selected to be silica gel in the embodiment of the present application, and the elastic backing plate 3 includes a bearing portion 301, a reset portion 302 and an abutting portion 303, wherein the bearing portion 301 is plate-shaped, and the reset portion 302 and the keys 5 are provided with a plurality of and all fixedly connected to one side of the bearing portion 301 facing the upper cover 4.

Referring to fig. 4 and 5, a plurality of accommodating grooves 7 are recessed in one side of each reset portion 302 facing the PCB 2, a plurality of abutting portions 303 are disposed in one-to-one correspondence with the reset portions 302, each abutting portion 303 is integrally connected to one side of each reset portion 302 facing the PCB 2 and located in the accommodating groove 7, when the key 5 is pressed, the reset portion 302 drives the abutting portions 303 to move together in the direction of the PCB 2, when the abutting portions 303 abut against the input contacts of the PCB 2, a command or input data is sent to the computer, and after the reset portion 302 is pressed, the abutting portions 303 and the key 5 are driven to return to the original position under the action of its own elastic force.

Referring to fig. 2 and 5, the corner of the abutting portion 303 facing the one end of the PCB 2 is in arc transition arrangement, so that the abutting portion 303 is not easy to scratch the PCB 2 due to the corner touching the PCB 2 when pressing the PCB 2. Lower cover 1 towards one side of PCB board 2 an organic whole fixed be provided with each supporting part 8 that butt portion 303 one-to-one set up to the realization supports PCB board 2 more stably, makes PCB board 2 difficult the emergence because of the too big condition of damaging of local atress, and then guarantees PCB board 2's life.

Referring to fig. 2 and 3, each reset portion 302 includes a first reset segment 3021 and a second reset segment 3022, wherein the first reset segment 3021 is integrally connected to a side of the carrying portion 301 facing the upper cover 4, the second reset segment 3022 is integrally connected to an end of the first reset segment 3021 away from the carrying portion 301, the accommodating groove 7 is concavely formed at an end of the first reset segment 3021 away from the second reset segment 3022, and a free end of the first reset segment 3021 facing the second reset segment 3022 is in a circular truncated cone shape with a gradually decreasing cross-sectional size, so that a user can issue a command to a computer or realize data input by applying a small force to the key 5.

Referring to fig. 3, the second reset segment 3022 is in snap fit with the key 5, the second reset segment 3022 is provided with two segments, and the cross-sectional dimension of the second reset segment 3022 away from the first reset segment 3021 is smaller than the cross-sectional dimension of the second reset segment 3022 close to the first reset segment 3021, so as to realize the stable connection between the second reset segment 3022 and the key 5.

Referring to fig. 4 and 6, the key 5 includes a key cap portion 501 and a mounting portion 502 fixedly connected to the key cap portion 501, a mounting groove 13 is opened at one end of the mounting portion 502 far away from the key cap portion 501, and the second reset segment 3022 is in snap fit with the mounting groove 13 of the key 5 to realize the stable connection between the key 5 and the resilient pad 3. The outer peripheral surface of installation department 502 has seted up installation breach 9, and installation breach 9 extends to the one end that installation department 502 kept away from key cap portion 501 to reduce the friction when the second section 3022 that resets when installing with between the mounting groove 13 cell wall, thereby be convenient for further that the second section 3022 resets and be connected between the installation department 502.

Referring to fig. 3 and 5, a lightening hole 10 is concavely formed at one end of the second resetting section 3022 away from the first resetting section 3021, so as to reduce the weight of the elastic backing plate 3, improve the portability of the keyboard and save material cost on the premise of ensuring the noise reduction performance of the elastic backing plate 3. The elastic cushion plate 3 further comprises a plurality of limiting parts 11, the limiting parts 11 are connected with one side of the bearing part 301 facing the upper cover 4 in a whole, one side of the upper cover 4 facing the bearing part 301 is concavely provided with limiting grooves 12 which are arranged in a one-to-one correspondence with the limiting parts 11 and are respectively connected with the limiting parts 11 in a clamping mode, so that the position of the bearing part 301 after installation is limited, and the stability of the position of the elastic cushion plate 3 after installation with the upper cover 4 is guaranteed.

The implementation principle of the key silencing structure for pressing the return is as follows: when the user presses the button 5, reset portion 302 drives butt portion 303 together towards PCB board 2 place direction motion because of being connected firmly with button 5, butt portion 303 butt is when the input contact of PCB board 2, send out the order or realize data input to the computer, in this process, reset portion 302 and butt portion 303 set up and play the cushioning effect when pressing down button 5, thereby make difficult appearance when pressing down button 5 produce the condition of noise of operation because of touching mutually with PCB board 2, button 5 presses down the back, reset portion 302 drives butt portion 303 and button 5 and resets thereby the next time input of the user of being convenient for to the computer.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a button amortization structure for pressing return which characterized in that: including lower cover (1), PCB board (2), elastic backing plate (3), upper cover (4) and a plurality of button (5), install in lower cover (1) one side upper cover (4), PCB board (2) and elastic backing plate (3) all are located upper cover (4) and lower cover (1) and enclose the region of establishing, and are a plurality of button (5) are installed in upper cover (4), elastic backing plate (3) are including bearing portion (301), reset portion (302) and butt portion (303), bearing portion (301) are close to upper cover (4) and set up, reset portion (302) and button (5) one-to-one are provided with a plurality ofly and all fixed connection in one side of bearing portion (301) towards upper cover (4), butt portion (303) and reset portion (302) one-to be provided with a plurality ofly and respectively fixed connection in one side that upper cover (4) were kept away from in each reset portion (302), reset portion (302) press back butt portion (303) and button (5) and reset.

2. The key silencing structure for push-back according to claim 1, wherein: reset portion (302) an organic whole and connect in load-bearing part (301), reset portion (302) joint cooperation is in button (5), reset portion (302) is equipped with storage tank (7) towards the one side of PCB board (2) is sunken, butt portion (303) an organic whole connect in reset portion (302) and lie in storage tank (7).

3. A push-to-return button silencing structure as claimed in claim 2, wherein: the reset portion (302) comprises a first reset segment (3021) and a second reset segment (3022), the first reset segment (3021) is integrally connected to the bearing portion (301), the second reset segment (3022) is integrally connected to one end, away from the bearing portion (301), of the first reset segment (3021), the second reset segment (3022) is in clamping fit with the key (5), and the cross section of the first reset segment (3021) is larger than that of the second reset segment (3022).

4. A push-to-return button silencing structure as claimed in claim 3, wherein: the accommodating groove (7) is formed in the first reset section (3021), and the free end of the first reset section (3021) facing the second reset section (3022) is in a circular truncated cone shape with the cross-sectional size gradually reduced.

5. A push-to-return button silencing structure as claimed in claim 3, wherein: the second reset section (3022) is provided with two sections, and the sectional dimension of one section of the second reset section (3022) far away from the first reset section (3021) is smaller than the sectional dimension of one section of the second reset section (3022) near the first reset section (3021).

6. The structure of claim 5, wherein the button is configured to be depressed to a position where the button is depressed: button (5) are including key cap portion (501) and fixed connection in installation department (502) of key cap portion (501), mounting groove (13) have been seted up in installation department (502), second reset segment (3022) and mounting groove (13) joint cooperation, installation breach (9) have been seted up to the outer peripheral face of installation department (502), installation breach (9) extend to installation department (502) keep away from the one end of key cap portion (501).

7. A key silencing structure for push-back according to claim 3, wherein: one end of the second resetting section (3022) far away from the first resetting section (3021) is concavely provided with a lightening hole (10).

8. The key silencing structure for push-back according to claim 1, wherein: the corner of the abutting part (303) towards one end of the PCB (2) is in arc transition arrangement.

9. The key silencing structure for push-back according to claim 1, wherein: one side of the lower cover (1) facing the PCB (2) is fixedly provided with supporting parts (8) which are in one-to-one correspondence with the abutting parts (303).

10. The structure of any one of claims 1 to 9, wherein: elastic backing plate (3) still include a plurality of spacing portions (11), and is a plurality of spacing portion (11) integrated connection is in one side of bearing part (301) towards upper cover (4), upper cover (4) are provided with and set up and respectively with each spacing portion (11) joint complex spacing groove (12) with a plurality of spacing portion (11) one-to-one.