CN213150622U - Key and keyboard - Google Patents

Abstract

The application discloses a key and a keyboard, wherein the key comprises a shell, a photosensitive assembly, a pressing piece, a circuit board, an elastic piece and a flexible piece; the shell comprises a lower shell, an upper shell connected with the lower shell and a guide cylinder arranged on the lower shell, and the pressing piece comprises a sliding block movably connected with the upper shell and a guide column connected with the sliding block; the flexible piece is arranged in the guide cylinder, and one end of the guide column, which is far away from the sliding block, extends into the guide cylinder; after the pressing piece moves for a preset distance in the direction close to the lower shell relative to the upper shell, the guide column can be abutted to the flexible piece. According to the relative epitheca of pressing member triggers photosensitive assembly when moving to the direction that is close to the inferior valve, after the pressing member moved the certain distance, guide post and flexible piece contact, and have the clearance between sliding block and the inferior valve this moment, because flexible piece self has certain deformability, consequently the guide post can not produce the contact noise with flexible piece, can cushion the pressing member, and then realize the silence effect of button.

Description

Key and keyboard

Technical Field

The application relates to the field of keyboards, in particular to a key and a keyboard.

Background

The keypad keys are generally classified into a mechanical contact type and a photoelectric switch type, in which a photoelectric switch type keypad uses an optical principle and a photoelectric coupling technology, a light path is formed by a transmitting element and a receiving element, and a light blocking member performs switching on and off of the light path to change circuit impedance to realize circuit switching. When the existing photoelectric switch key is used, generally, when the key is not pressed down, the light path is disconnected, and the key is in a normal state; when an operator presses a key, the photosensitive element (receiving element) receives an optical signal sent by the transmitting element to form a path to change circuit impedance to realize circuit switching, so that the key function is realized. For example, in chinese patent application No. 202010264761.3, when the pressing member is pressed, a rigid impact occurs with the lower case of the housing, which makes it easy to contact noise and break the pressing member of the pressing member.

SUMMERY OF THE UTILITY MODEL

An object of the present application is to provide a key, which aims to solve the problem that the key applied to a keyboard easily generates contact noise when pressed in the prior art.

To achieve the purpose, the embodiment of the application adopts the following technical scheme:

the key comprises a shell, a photosensitive assembly arranged in the shell, a pressing piece movably arranged on the shell and used for triggering the photosensitive assembly, a circuit board connected with the shell, an elastic piece arranged on the pressing piece, and a flexible piece arranged opposite to the pressing piece; the shell comprises a lower shell, an upper shell connected with the lower shell and a guide cylinder arranged on the lower shell, and the pressing piece comprises a sliding block movably connected with the upper shell and a guide column connected with the sliding block; the flexible piece is arranged in the guide cylinder, and one end of the guide column, which is far away from the sliding block, extends into the guide cylinder; after the pressing piece moves for a preset distance relative to the upper shell in the direction close to the lower shell, the guide column can be abutted to the flexible piece.

In one embodiment, the circuit board is provided with a mounting hole, and one end of the guide cylinder, which is far away from the sliding block, is mounted in the mounting hole.

In one embodiment, the elastic member is sleeved outside the guide cylinder, and the elastic member is sleeved outside the guide column.

In one embodiment, the key further comprises a spring piece arranged in the shell, and the spring piece is abutted against the side face of the pressing piece.

In one embodiment, the flexible member is a rubber post.

In one embodiment, the resilient member is a spring.

In one embodiment, the pressing piece is provided with a limiting groove corresponding to the spring, and one end of the spring, which is far away from the circuit board, is located in the limiting groove.

It is a further object of this application to provide a keyboard including a key as described in any of the above embodiments.

The beneficial effects of the embodiment of the application are as follows: when the key is used, for example, applied to a keyboard, a user presses the pressing piece to drive the pressing piece to move relative to the shell. According to the relative epitheca of pressing member triggers photosensitive assembly when moving to the direction that is close to the inferior valve, after the pressing member moved the certain distance, guide post and flexible piece contact, and have the clearance between sliding block and the inferior valve this moment, because flexible piece self has certain deformability, consequently the guide post can not produce the contact noise with flexible piece, can cushion the pressing member, and then realize the silence effect of button.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a key in an embodiment of the present application;

FIG. 2 is a cross-sectional view of a key in an embodiment of the present application;

in the figure:

1. a housing; 101. an upper shell; 102. a lower case; 2. a photosensitive element; 3. a pressing member; 301. a slider; 302. a guide post; 303. a limiting groove; 4. a circuit board; 401. mounting holes; 5. an elastic member; 6. a flexible member; 7. a guide cylinder; 8. an elastic sheet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The following detailed description of implementations of the present application is provided in conjunction with specific embodiments.

As shown in fig. 1-2, an embodiment of the present application provides a key, which includes a housing 1, a photosensitive element 2 disposed in the housing 1, a pressing member 3 movably mounted on the housing 1 and used for triggering the photosensitive element 2, a circuit board 4 connected to the housing 1, an elastic member 5 mounted on the pressing member 3, and a flexible member 6 disposed opposite to the pressing member 3; the shell 1 comprises an upper shell 101, a lower shell 102 and a guide cylinder 7 arranged on the lower shell 102; the pressing piece 3 comprises a sliding block 301 movably connected with the upper shell 101 and a guide post 302 connected with the sliding block 301; the flexible member 6 is mounted in the guide cylinder 7, and one end of the guide post 302 away from the slide block 301 extends into the guide cylinder 7. After the pressing member 3 moves a predetermined distance (the distance between the pressing member 3 and the flexible member 6) in a direction approaching the lower case 102 with respect to the case 1, the guide post 302 of the pressing member 3 can abut against the flexible member 6, and the sliding block 301 of the pressing member 3 has a gap with the surface of the lower case 102.

In the embodiment of the present application, when the key is used, for example, on a keyboard, a user presses the pressing member 3 to move the pressing member 3 relative to the housing 1. The photosensitive component 2 is triggered when the pressing piece 3 moves relative to the shell 1, and the pressing piece 3 is easy to move excessively due to different pressing force degrees of users and certain inertia of the pressing piece 3. Due to the flexible member 6, the guide post 302 of the pressing member 3 abuts against the flexible member 6 after moving for a certain distance. The flexible piece 6 supports the guide post 302, and has a clearance between the surface of sliding block 301 and inferior valve 102, and flexible piece 6 self has certain deformability, can cushion the pressing piece 3 for the guide post 302 is difficult for receiving the rigidity and assaults, is difficult for sending contact noise, realizes the silence effect of button.

Optionally, the flexible member 6 may be a rubber member, a silicone member, or other members with a certain deformation capability. The elastic member 5 is used for restoring the pressing member 3, and the pressing member 3 is restored after the pressing force is released.

Referring to fig. 2, as another embodiment of the key provided in the present application, an end of the guiding rod 302 away from the sliding block 301 extends into the guiding cylinder 7. When the user pressed pressing member 3, guide post 302 of pressing member 3 was located guide cylinder 7, guide cylinder 7 radially carried on spacingly to guide post 302 in self, and then realized pressing member 3 in guide cylinder 7 radially spacing, make pressing member 3 approach to the axis direction motion that can only follow guide cylinder 7, be difficult for the skew, this direction of motion is used for triggering photosensitive assembly 2, realizes the light accurate photosensitive assembly 2 that triggers of user. Alternatively, the end of the guide post 302 may be pointed to facilitate insertion into the guide cylinder 7.

Referring to fig. 2, as another embodiment of the key provided by the present application, the flexible member 6 is installed in the guide cylinder 7, the guide post 302 is the part of the pressing member 3 closest to the lower shell 102, and the distance between the guide post 302 and the lower shell 102 is the shortest, and the guide post 302 can abut against the guide post 302 after contacting with the flexible member 6, so that the guide post 302 does not advance any further. Because the flexible part 6 is located in the guide cylinder 7, after the guide column 302 applies force to the flexible part 6, the flexible part can only deform along the axial direction of the guide cylinder 7 and then returns to the original shape, so that the flexible part 6 is not easy to loosen and change the installation position.

Referring to fig. 2, as another embodiment of the key set provided in the present application, a mounting hole 401 is formed in the circuit board 4, and an end of the guide cylinder 7 away from the sliding block 301 is mounted in the mounting hole 401. Optionally, the guide cylinder 7 and the housing 1 may be an integral piece, so as to further improve the stability of the guide cylinder 7 and ensure the strength of the internal structure of the key during use.

Referring to fig. 2, as another embodiment of the key provided by the present application, the elastic element 5 is sleeved outside the guide cylinder 7, and the elastic element 5 is sleeved outside the guide post 302. The elastic piece 5 is used for resetting the pressing piece 3, a part of the elastic piece is sleeved outside the guide cylinder 7, and a part of the elastic piece is sleeved outside the guide post 302, so that the elastic piece 5 can only be compressed along the axial direction of the guide post 302 when being compressed, is not easy to shift, and also resets along the axis direction of the elastic piece when being reset, thereby providing better reset elastic force for the pressing piece 3.

Referring to fig. 2, as another embodiment of the key provided in the present application, the key further includes a spring sheet 8 disposed in the housing 1, and the spring sheet 8 abuts against a side surface of the pressing member 3 (a surface where the pressing member 3 moves). The elastic sheet 8 can tightly support the pressing piece 3, so that the pressing piece 3 can move along the shell 1, but is not easy to loose due to gaps, is not easy to damage and is not easy to make abnormal sound. The elastic sheet 8 is provided with an inclined plane which is contacted with the pressing piece 3, and the pressing piece 3 is also provided with a corresponding inclined plane, so that the elastic sheet 8 can pre-tighten the pressing piece 3, and the pressing piece 3 can smoothly slide relative to the elastic sheet 8.

Referring to fig. 2, as another embodiment of the key provided in the present application, the flexible element 6 is a rubber column, or a silica gel column. The rubber column and the silica gel column can be preferably installed in the guide cylinder 7 to be attached to the inner surface of the guide cylinder 7.

Referring to fig. 2, as another embodiment of the key provided by the present application, the elastic element 5 is a spring, and can be compressed when being stressed, and the spring returns to its original shape after the external force is removed to drive the pressing element 3 to return to its original position.

Referring to fig. 2, as another embodiment of the key provided in the present application, the pressing member 3 is provided with a limiting groove 303 corresponding to the spring, and one end of the spring away from the circuit board 4 is located in the limiting groove 303. When the spring is stressed and compressed, the spring is not easy to deform along the radial direction of the spring.

An embodiment of the present application provides a keyboard, including the key in any one of the above embodiments. The keyboard with the keys in the embodiment is not easy to generate contact noise when a user uses the keyboard, and the mute effect of the keyboard is realized.

It is to be understood that aspects of the present invention may be practiced otherwise than as specifically described.

It should be understood that the above examples are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. 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 application shall be included in the protection scope of the claims of the present application.

Claims (8)

1. The key is characterized by comprising a shell, a photosensitive assembly arranged in the shell, a pressing piece movably arranged on the shell and used for triggering the photosensitive assembly, a circuit board connected with the shell, an elastic piece arranged on the pressing piece, and a flexible piece opposite to the pressing piece; the shell comprises a lower shell, an upper shell connected with the lower shell and a guide cylinder arranged on the lower shell, and the pressing piece comprises a sliding block movably connected with the upper shell and a guide column connected with the sliding block; the flexible piece is arranged in the guide cylinder, and one end of the guide column, which is far away from the sliding block, extends into the guide cylinder; after the pressing piece moves for a preset distance relative to the upper shell in the direction close to the lower shell, the guide column can be abutted to the flexible piece.

2. The key of claim 1, wherein the circuit board has a mounting hole, and an end of the guide cylinder away from the sliding block is mounted in the mounting hole.

3. The key of claim 1, wherein the elastic member is sleeved outside the guide cylinder, and the elastic member is sleeved outside the guide post.

4. The key of claim 1, further comprising a spring disposed in the housing, wherein the spring abuts against a side surface of the pressing member.

5. A key according to any of claims 1-4, characterized in that said flexible element is a rubber post.

6. A key according to any of claims 1-4, characterized in that said resilient member is a spring.

7. The key of claim 6, wherein the pressing member defines a limiting groove corresponding to the spring, and an end of the spring away from the circuit board is located in the limiting groove.

8. Keyboard, characterized in that it comprises a key according to any of claims 1-7.

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