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 ultra-thin metal shell, which adopts an ultra-thin metal shell body, a key panel movably clamped and matched with the ultra-thin metal shell body, and an elastic washer clamped between the ultra-thin metal shell body and the key panel. An embedding groove is concavely formed in the top surface of the ultra-thin metal shell body, the elastic washer is accommodated in the embedding groove, the key panel covers the embedding groove, the key panel is used for abutting against a light touch switch of a circuit board, the characteristics of high elasticity and thinness of the elastic washer are utilized, and the elastic washer is arranged in the embedding groove of the ultra-thin metal shell body, so that the light touch switch can be pressed against the key panel. The key hand feeling can be effectively improved in a limited space, and the key is particularly suitable for 3C products with ultrathin metal shells.

Description

Technical Field

[0001] This utility model relates to the field of button structure technology, specifically to a button structure with an ultra-thin metal shell. Background Technology

[0002] The button structure of 3C products, including push buttons, usually has a circuit board with a tactile switch at the bottom. When the push button is pressed, it presses down on the tactile switch, so that the tactile switch controls the on / off state of the corresponding circuit on the circuit board.

[0003] More and more 3C products on the market are using metal for their casings, making button mounting a design challenge. Metal casings, especially sheet metal stampings, cannot accommodate buttons like plastic casings can with positioning posts or ribs. Furthermore, the space available for buttons on metal casings is relatively small. When designing buttons, we must not only ensure functionality but also consider tactile feedback. A common method to improve the feel of plastic casings is through elastic arms, because buttons rely solely on the travel of the tactile switch on the circuit board, which is typically only about 0.2-0.5mm, resulting in a poor feel. Therefore, elastic arms are used to improve the feel. However, ultra-thin metal casings cannot accommodate elastic arms, and due to their limited thickness, they cannot incorporate spring structures to increase travel and improve the pressing feel. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a button structure with an ultra-thin metal shell.

[0005] The purpose of this utility model is achieved through the following technical solution: a button structure with an ultra-thin metal shell, including an ultra-thin metal shell body, a button panel that is movably engaged with the ultra-thin metal shell body, and an elastic washer sandwiched between the ultra-thin metal shell body and the button panel. The top surface of the ultra-thin metal shell body is recessed with an embedding groove, the elastic washer is accommodated in the embedding groove, the button panel is covered in the embedding groove, and the button panel is used to abut against the tactile switch of the circuit board.

[0006] Preferably, the bottom of the button panel has at least two buckles protruding, and the mounting groove of the ultra-thin metal shell body has at least two buckle holes that are movably engaged with the buckles.

[0007] Preferably, the bottom of the button panel also has at least one abutting post protruding, and the mounting groove of the ultra-thin metal shell body is also provided with at least one clearance through hole corresponding to the abutting post. The abutting post extends into the clearance through hole and is used to abut the tactile switch of the circuit board.

[0008] Preferably, the elastic washer is an elastic silicone washer or an elastic EVA washer.

[0009] Preferably, the ultra-thin metal outer shell body has at least two mounting countersunk holes.

[0010] Preferably, a washer limiting groove is provided around the periphery of the mounting groove of the ultra-thin metal shell body, and the elastic washer is limited in the washer limiting groove.

[0011] The beneficial effects of this utility model are as follows: The button structure of the ultra-thin metal shell of this utility model adopts an ultra-thin metal shell body, a button panel that is movably snapped into the ultra-thin metal shell body, and an elastic washer sandwiched between the ultra-thin metal shell body and the button panel. The top surface of the ultra-thin metal shell body is recessed with an embedding groove, the elastic washer is accommodated in the embedding groove, and the button panel is covered in the embedding groove. The button panel is used to abut against the tactile switch of the circuit board. By utilizing the high elasticity and thinness of the elastic washer, and by setting the elastic washer in the embedding groove of the ultra-thin metal shell body, the button feel can be effectively improved in a limited space. It is especially suitable for 3C products with ultra-thin metal shells. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is an exploded view of the present invention;

[0014] Figure 3 This is an exploded view of the present invention from another perspective;

[0015] Figure 4 This is a structural schematic diagram from another perspective of the present invention;

[0016] Figure 5 yes Figure 4 Cross-sectional view of AA.

[0017] The attached diagram is labeled as follows: 1. Ultra-thin metal casing body; 2. Button panel; 3. Elastic washer; 4. Mounting groove; 5. Circuit board; 6. Tactile switch; 7. Buckle; 8. Buckle hole; 9. Pressing post; 10. Clearance through hole; 11. Assembly countersunk hole; 12. Washer limiting groove. Detailed Implementation

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0019] like Figure 1-5As shown, a button structure with an ultra-thin metal casing includes an ultra-thin metal casing body 1, a button panel 2 that is movably engaged with the ultra-thin metal casing body 1, and an elastic washer 3 sandwiched between the ultra-thin metal casing body 1 and the button panel 2. The top surface of the ultra-thin metal casing body 1 is recessed with an insert groove 4, the elastic washer 3 is accommodated in the insert groove 4, the button panel 2 is covered by the insert groove 4, and the button panel 2 is used to abut against the tactile switch 6 of the circuit board 5.

[0020] The button structure of the ultra-thin metal shell adopts an ultra-thin metal shell body 1, a button panel 2 that is movably engaged with the ultra-thin metal shell body 1, and an elastic washer 3 sandwiched between the ultra-thin metal shell body 1 and the button panel 2. The top surface of the ultra-thin metal shell body 1 is recessed with an insert groove 4, the elastic washer 3 is accommodated in the insert groove 4, and the button panel 2 is covered by the insert groove 4. The button panel 2 is used to abut against the tactile switch 6 of the circuit board 5. By utilizing the high elasticity and thinness of the elastic washer 3, and by setting the elastic washer 3 in the insert groove 4 of the ultra-thin metal shell body 1, the button feel can be effectively improved in a limited space, which is especially suitable for 3C products with ultra-thin metal shells.

[0021] Furthermore, the bottom of the button panel 2 has at least two protruding clips 7, and the mounting groove 4 of the ultra-thin metal shell body 1 has at least two snap holes 8 that engage with the clips 7 one by one. This facilitates the quick installation of the button panel 2 into the mounting groove 4 of the ultra-thin metal shell body 1 and prevents the button panel 2 from easily detaching from the ultra-thin metal shell body 1. Moreover, the height of the clips 7 is greater than the depth of the snap holes 8, so that there is sufficient lifting space for the button panel 2 to be pressed down and reset. In this embodiment, there are three clips 7 and three snap holes 8.

[0022] Furthermore, at least one abutting post 9 protrudes from the bottom of the button panel 2, and the mounting groove 4 of the ultra-thin metal shell body 1 is provided with at least one clearance through hole 10 corresponding to the abutting post 9. The abutting post 9 extends into the clearance through hole 10 and is used to abut against the tactile switch 6 of the circuit board 5. When the button panel 2 is pressed down, the abutting post 9 presses against the tactile switch 6 of the circuit board 5. In this embodiment, the number of tactile switches 6 on the circuit board 5 is 3, and correspondingly, the number of abutting posts 9 is 3.

[0023] Furthermore, the elastic washer 3 is an elastic silicone washer or an elastic EVA washer. Specifically, the material of the elastic washer 3 is a commercially available elastic silicone washer or elastic EVA washer with a compression ratio of 40-60%, such as Wacker R420 / 50 or Wacker R170. In this embodiment, the elastic washer 3 is an elastic silicone washer.

[0024] Furthermore, the ultra-thin metal housing body 1 has at least two mounting countersunk holes 11. When applied to 3C products, the button structure can be fixed to the 3C product by means of screws or other locking components through the mounting countersunk holes 11. In this embodiment, the number of mounting countersunk holes 11 is 3.

[0025] Furthermore, a washer limiting groove 12 is provided around the periphery of the mounting groove 4 of the ultra-thin metal shell body 1, and the elastic washer 3 is limited and positioned in the washer limiting groove 12. This facilitates the quick installation of the elastic washer 3 in the washer limiting groove 12 of the ultra-thin metal shell body 1 and prevents the elastic washer 3 from becoming displaced.

[0026] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A button structure with an ultra-thin metal casing, characterized in that: The device includes an ultra-thin metal housing body, a button panel that is movably engaged with the ultra-thin metal housing body, and an elastic washer sandwiched between the ultra-thin metal housing body and the button panel. The top surface of the ultra-thin metal housing body is recessed with an insert groove, the elastic washer is accommodated in the insert groove, the button panel is covered in the insert groove, and the button panel is used to contact the tactile switch of the circuit board.

2. The button structure of an ultra-thin metal shell according to claim 1, characterized in that: The bottom of the button panel has at least two buckles protruding, and the mounting groove of the ultra-thin metal shell body has at least two buckle holes that are movably engaged with the buckles.

3. The button structure of an ultra-thin metal shell according to claim 1, characterized in that: The bottom of the button panel also has at least one abutting post protruding, and the mounting groove of the ultra-thin metal shell body is also provided with at least one clearance through hole corresponding to the abutting post. The abutting post extends into the clearance through hole and is used to abut the tactile switch of the circuit board.

4. The button structure of an ultra-thin metal shell according to claim 1, characterized in that: The elastic washer is an elastic silicone washer or an elastic EVA washer.

5. The button structure of an ultra-thin metal shell according to claim 1, characterized in that: The ultra-thin metal outer shell body has at least two mounting countersunk holes.

6. The button structure of an ultra-thin metal shell according to claim 1, characterized in that: The ultra-thin metal shell body has a washer limiting groove around the mounting groove, and the elastic washer is limited in the washer limiting groove.

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