CN212324515U

CN212324515U - Instrument key structure

Info

Publication number: CN212324515U
Application number: CN202020876269.7U
Authority: CN
Inventors: 赵伯杰; 张鑫
Original assignee: Xiamen Island Electric And Electronic Technology Co ltd
Current assignee: Xiamen Island Electric And Electronic Technology Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-01-08
Anticipated expiration: 2030-05-22

Abstract

The utility model provides an instrument button structure, circuit board set firmly on the casing of instrument, and the circuit board top has set firmly the panel that has the display screen, and the mounting hole has been seted up to the panel, its characterized in that: the inner diameter of the upper hole of the mounting hole is larger than that of the lower hole, a key is embedded in the mounting hole, the large-diameter part of the key is accommodated in the upper hole and supported by the bottom surface of the upper hole, the small-diameter part of the key is exposed out of the upper surface of the panel, a contact key fixedly arranged on the circuit board is correspondingly arranged below the key, and the contact key is inserted into the lower hole and abuts against the lower surface of the key; a transparent cover plate is fixedly arranged on the panel, a key hole with the inner diameter smaller than the large-diameter part of the key and larger than the small-diameter part of the key is arranged on the transparent cover plate, and the small-diameter part of the key penetrates through the key hole to expose the upper surface of the transparent cover plate. The utility model relates to a simple to operate's instrument button structure.

Description

Instrument key structure

Technical Field

The utility model relates to an instrument structure, specifically speaking are a button structure for instrument.

Background

The instrument is required to be provided with keys, and the keys press contact keys on the circuit board after being pressed down so as to realize various functions.

At present, the instrument key structure is as shown in fig. 1 and fig. 2, a circuit board 2 is fixedly arranged on a housing 1, a panel 3 with a display screen is fixedly arranged above the circuit board 2, the panel 3 is provided with a mounting hole 4 ', the mounting hole 4 ' is a two-step hole formed by an upper hole 41 ' and a lower hole 42 ', the inner diameter of the upper hole 41 ' is smaller than that of the lower hole 42 ', a two-step key 5 is embedded in the two-step mounting hole 4 ', a large diameter part 52 of the key 5 is accommodated in the lower hole 42 ', a small diameter part 51 of the key 5 passes through the upper hole 41 ' and then exposes out of the upper surface of the panel 3, a contact key 6 fixedly arranged on the circuit board 2 is correspondingly arranged below the key 5, and the contact key 6 abuts against the lower surface of the key 5. The user presses the key 5 to depress the contact key 6.

The disadvantages of this structure are: during installation, the key 5 is embedded into the second-order mounting hole 4' from bottom to top, and then the key 5 is buckled on the circuit board 2 together with the panel 3, and in the process, the key 5 is easy to fall off, so that the installation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides an instrument button structure, its purpose is solved prior art's shortcoming, provides a simple to operate's instrument button structure.

The utility model provides a technical scheme that its technical problem adopted is:

instrument button structure, circuit board set firmly on the casing of instrument, and the circuit board top has set firmly the panel that has the display screen, and the mounting hole, its characterized in that have been seted up to the panel:

the inner diameter of the upper hole of the mounting hole is larger than that of the lower hole, a key is embedded in the mounting hole, the large-diameter part of the key is accommodated in the upper hole and supported by the bottom surface of the upper hole, the small-diameter part of the key is exposed out of the upper surface of the panel, a contact key fixedly arranged on the circuit board is correspondingly arranged below the key, and the contact key is inserted into the lower hole and abuts against the lower surface of the key;

a transparent cover plate is fixedly arranged on the panel, a key hole with the inner diameter smaller than the large-diameter part of the key and larger than the small-diameter part of the key is arranged on the transparent cover plate, and the small-diameter part of the key penetrates through the key hole to expose the upper surface of the transparent cover plate.

The utility model discloses an useful part lies in:

the utility model discloses a button is from panel top installation after-fixing's structure, the dropping of button when having avoided the installation when guaranteeing button result of use makes instrument button installation more convenient.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a cross-sectional view of the prior art;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an enlarged view of the portion B of FIG. 3;

fig. 5 is an appearance diagram of the present invention.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained according to the drawings without inventive labor. In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used in this specification, the terms "upper," "lower," "inner," "outer," "bottom," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and simplicity in 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 are not to be considered limiting of the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 3, 4, and 5:

the utility model relates to a use button structure on instrument.

The circuit board 2 is fixedly arranged on a shell 1 of the instrument, a panel 3 with a display screen 8 is fixedly arranged above the circuit board 2, a mounting hole 4 is formed in the panel 3, the mounting hole 4 is a second-order hole formed by an upper hole 41 and a lower hole 42, the inner diameter of the upper hole 41 is larger than that of the lower hole 42, a second-order key 5 is embedded in the second-order mounting hole 4, a large-diameter part 52 at the lower part of the key 5 is accommodated in the upper hole 41 and supported by the bottom surface of the upper hole 41, a small-diameter part 51 at the upper part of the key 5 is exposed out of the upper surface of the panel 3, a contact key 6 fixedly arranged on the circuit board 2 is correspondingly arranged below the key 5, and the contact key 6 is inserted into the lower hole 42 and abuts.

A transparent cover plate 7 is fixedly bonded or welded on the panel 3 by ultrasonic waves, a key hole 71 is arranged on the transparent cover plate 7, the inner diameter of the key hole 71 is smaller than the large-diameter part 52 of the key 5 but larger than the small-diameter part 51 of the key 5, the small-diameter part 51 of the key 5 passes through the key hole 71 and then is exposed out of the upper surface of the transparent cover plate 7, and the transparent cover plate 7 stops the large-diameter part 52 of the key 5 in a limiting way, so that the key 5 cannot fall out from the upper part.

The user presses the key 5 to depress the contact key 6.

When the structure is installed, the panel 3 is installed firstly, the keys 5 are installed in the installation holes 4 of the panel 3, the transparent cover plate 7 is installed, the keys 5 are supported by the installation holes 4 in the installation process and cannot fall out, and the installation is convenient.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Instrument button structure, circuit board set firmly on the casing of instrument, and the circuit board top has set firmly the panel that has the display screen, and the mounting hole, its characterized in that have been seted up to the panel: the inner diameter of the upper hole of the mounting hole is larger than that of the lower hole, a key is embedded in the mounting hole, the large-diameter part of the key is accommodated in the upper hole and supported by the bottom surface of the upper hole, the small-diameter part of the key is exposed out of the upper surface of the panel, a contact key fixedly arranged on the circuit board is correspondingly arranged below the key, and the contact key is inserted into the lower hole and abuts against the lower surface of the key; a transparent cover plate is fixedly arranged on the panel, a key hole with the inner diameter smaller than the large-diameter part of the key and larger than the small-diameter part of the key is arranged on the transparent cover plate, and the small-diameter part of the key penetrates through the key hole to expose the upper surface of the transparent cover plate.