CN-224217392-U - Key structure of ultrathin metal shell

Abstract

The utility model relates to the technical field of key structures, in particular to a key structure of an ultrathin metal shell, which adopts an ultrathin metal shell body, a key panel movably clamped and matched with the ultrathin metal shell body and an elastic gasket clamped between the ultrathin metal shell body and the key panel, wherein an embedded groove is concavely arranged on the top surface of the ultrathin metal shell body, the elastic gasket is accommodated in the embedded groove, the key panel is covered on the embedded groove, the key panel is used for abutting against a tact switch of a circuit board, and the characteristic of high elasticity and thinness of the elastic gasket is utilized, and the elastic gasket is arranged in the embedded groove of the ultrathin metal shell body, so that key handfeel can be effectively improved in a limited space, and the key structure is particularly suitable for 3C products with the ultrathin metal shell.

Inventors

• LIU GUOQIANG

Assignees

• 东莞正阳电子有限公司

Dates

Publication Date

20260508

Application Date

20250422

Claims (6)

1. 1. The key structure of the ultrathin metal shell is characterized by comprising an ultrathin metal shell body, a key panel movably clamped and matched with the ultrathin metal shell body and an elastic gasket clamped between the ultrathin metal shell body and the key panel, wherein an embedded groove is concavely formed in the top surface of the ultrathin metal shell body, the elastic gasket is accommodated in the embedded groove, the key panel is covered on the embedded groove, and the key panel is used for abutting against a tact switch of a circuit board.
2. 2. The key structure of the ultrathin metal shell as set forth in claim 1, wherein the bottom of the key panel is provided with at least two buckles in a protruding mode, and the embedded groove of the ultrathin metal shell body is provided with at least two buckling holes which are in one-to-one movable clamping fit with the buckles.
3. 3. The key structure of the ultra-thin metal casing as set forth in claim 1, wherein the bottom of the key panel is further provided with at least one pressing post in a protruding manner, the embedded groove of the ultra-thin metal casing body is further provided with at least one yielding through hole corresponding to the pressing post one by one, and the pressing post extends into the yielding through hole and is used for abutting against the tact switch of the circuit board.
4. 4. The key structure of the ultrathin metal shell according to claim 1, wherein the elastic gasket is an elastic silica gel gasket or an elastic EVA gasket.
5. 5. The key structure of the ultrathin metal shell according to claim 1, wherein the ultrathin metal shell body is provided with at least two assembly counter bores.
6. 6. The key structure of the ultrathin metal shell according to claim 1, wherein a gasket limiting groove is formed in the periphery of the embedded groove of the ultrathin metal shell body, and the elastic gasket is limited and arranged in the gasket limiting groove.

Description

Key structure of ultrathin metal shell Technical Field The utility model relates to the technical field of key structures, in particular to a key structure with an ultrathin metal shell. Background The key structure of the 3C product comprises a pressing key, wherein the bottom of the structure is usually a circuit board with a tact switch, the tact switch is abutted by the pressing key, and when the pressing key is pressed, the pressing key presses the tact switch so as to control the on-off of a circuit corresponding to the circuit board by the tact switch. More and more 3C products in the market use metal materials to make the housing, and the key fixing mode becomes a design difficulty. The metal shell, especially the sheet metal stamping part, does not have to do some reference columns or positioning bones to match the keys like the plastic shell. And the space position reserved by the metal shell for the keys is smaller. The key is made by taking the hand feeling of the key into consideration as well as the function of the key. The common hand feeling improving method of the plastic shell is realized through the elastic arm, because the key is optically close to the light touch switch stroke on the circuit board, the light touch switch stroke is about 0.2-0.5 mm, and the hand feeling is poor, the hand feeling is improved through the elastic arm, but the ultrathin metal shell can not be used for manufacturing the elastic arm, and the ultrathin metal shell can not be used for enhancing the stroke by adding a spring structure due to the limited thickness space so as to improve the pressing hand feeling. Disclosure of Invention In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide a key structure with an ultrathin metal shell. The key structure of the ultrathin metal shell comprises an ultrathin metal shell body, a key panel movably clamped and matched with the ultrathin metal shell body and an elastic gasket clamped between the ultrathin metal shell body and the key panel, wherein an embedded groove is concavely formed in the top surface of the ultrathin metal shell body, the elastic gasket is accommodated in the embedded groove, the key panel is covered on the embedded groove, and the key panel is used for abutting against a tact switch of a circuit board. Preferably, the bottom of the key panel is convexly provided with at least two buckles, and the embedded groove of the ultrathin metal shell body is provided with at least two buckling holes which are movably clamped and matched with the buckles one by one. Preferably, the bottom of the key panel is further provided with at least one pressing column in a protruding mode, the embedded groove of the ultrathin metal shell body is further provided with at least one yielding through hole corresponding to the pressing column one to one, and the pressing column stretches into the yielding through hole and is used for abutting against the tact switch of the circuit board. Preferably, the elastic gasket is an elastic silica gel gasket or an elastic EVA gasket. Preferably, the ultrathin metal shell body is provided with at least two assembly counter bores. Preferably, a gasket limiting groove is formed in the peripheral edge of the embedded groove of the ultrathin metal shell body, and the elastic gasket is limited and arranged in the gasket limiting groove. The ultra-thin metal shell key structure has the beneficial effects that the ultra-thin metal shell key structure adopts the ultra-thin metal shell body, the key panel movably clamped and matched with the ultra-thin metal shell body and the elastic gasket clamped between the ultra-thin metal shell body and the key panel, the top surface of the ultra-thin metal shell body is concavely provided with the embedded groove, the elastic gasket is accommodated in the embedded groove, the key panel is covered on the embedded groove and is used for abutting against the tact switch of the circuit board, the high elasticity and the thinness characteristic of the elastic gasket are utilized, and the elastic gasket is arranged in the embedded groove of the ultra-thin metal shell body, so that key hand feeling can be effectively improved in a limited space, and the ultra-thin metal shell key structure is particularly suitable for 3C products with ultra-thin metal shells. Drawings FIG. 1 is a schematic diagram of the structure of the present utility model; FIG. 2 is an exploded schematic view of the present utility model; FIG. 3 is an exploded view of another view of the present utility model; FIG. 4 is a schematic view of another view of the present utility model; fig. 5 is a cross-sectional view of A-A in fig. 4. The reference sign is 1, ultrathin metal shell body; 2, a key panel, 3, an elastic gasket, 4, an embedded groove, 5, a circuit board, 6, a tact switch, 7, a buckle, 8, a buckling hole, 9, a pressing post, 10, a yielding through hole, 11, an assembly counter bore, 1