CN211429488U - Button and bluetooth headset - Google Patents

Abstract

The utility model provides a button and bluetooth headset, this button is in including face lid, bottom and setting face lid with PCB board between the bottom, the face lid includes the flexible glue lid and sets up the inboard ebonite lid of flexible glue lid, the button hole has been seted up on the ebonite lid, the button hole with mechanical button position on the PCB board corresponds, be provided with the button elasticity arm in the button hole, button elasticity arm one end is fixed on the lateral wall of button hole. The utility model discloses can effectually promote the button and feel, improve user experience and product quality, satisfy consumers' demand in general.

Description

Button and bluetooth headset

Technical Field

The utility model relates to the field of electronic technology, especially, relate to a button and bluetooth headset.

Background

With the rise of the bluetooth headset industry, people have higher and higher requirements on the functions and quality of headset products. The key is an essential part of the Bluetooth headset to control the starting, the closing, the volume adjustment and the like of the Bluetooth headset.

The existing button of the bluetooth headset is realized by adopting a plastic part to transmit acting force pressed by a finger to a mechanical button on a PCB circuit board. The problem of button bad feeling often can be met in current bluetooth headset, not only can influence the normal use of product, can influence user experience moreover.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, it is necessary to provide a button and a bluetooth headset for solving the problem of poor hand feeling of the button of the bluetooth headset in the prior art.

The utility model provides a key, is in including face lid, bottom and setting face lid with PCB board between the bottom, the face lid includes the flexible glue lid and sets up the inboard ebonite lid of flexible glue lid, the button hole has been seted up on the ebonite lid, the button hole with mechanical button position on the PCB board corresponds, be provided with the button elasticity arm in the button hole, button elasticity arm one end is fixed on the lateral wall of button hole, the size of button hole does 1.5 ~ 2 times of button elasticity arm size.

Further, in the above-mentioned key, the key elastic arm includes a pressing portion and a connecting portion, and the size of the pressing portion is larger than that of the connecting portion.

Further, in the above key, a boss is fixedly disposed at a lower end of the pressing portion.

Further, in the above key, the pressing portion is circular.

Further, according to the key, the overall length of the elastic arm of the key is 3-5 times of the width of the connecting part.

Furthermore, according to the key, the pressing stroke between the key elastic arm and the mechanical key is 0.05-0.15 mm.

Further, in the above key, the bottom cover is fixedly provided with a plurality of positioning columns, and the PCB board is provided with positioning grooves adapted to the positioning columns.

Further, according to the key, the PCB includes an upper plate and a lower plate located below the upper plate, the positioning column includes a first positioning portion and a second positioning portion fixedly disposed on one side of the first positioning portion, an upper end surface of the second positioning portion is lower than an upper end surface of the first positioning portion so as to bear the upper plate, the positioning groove is adapted to a size of the first positioning portion, and a groove adapted to the second positioning portion is formed in the lower plate.

Furthermore, in the above-mentioned key, the number of the positioning columns is three, one of the positioning columns is located on one side of the bottom cover, the other two positioning columns are located on the other side of the bottom cover, and the three positioning columns are distributed in a triangular shape.

The embodiment of the utility model provides a bluetooth headset is still provided, including above-mentioned arbitrary one the button.

The utility model discloses a key hole is seted up according to the key region on the ebonite lid of face lid, and this key hole corresponds with the mechanical button on the PCB board to set up the button elasticity arm in the key hole and realize the function of pressing down of button, this size design according to the key hole is 1.5 ~ 2 times of button elasticity arm size, is convenient for press down, and effectual promotion button is felt, improves user experience and product quality, satisfies consumers' demand in general.

Drawings

Fig. 1 is an exploded schematic view of a key according to an embodiment of the present invention;

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

FIG. 3 is an enlarged schematic view of the area A in FIG. 2;

fig. 4 is an enlarged structural diagram of a region B in fig. 1.

Description of the main elements

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The embodiment of the invention is given in the attached drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, this embodiment is provided so that this disclosure will be thorough and complete.

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 also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1 to 4, which are key buttons according to a first embodiment of the present invention, the key buttons can be applied to a bluetooth headset. The key includes a face cover 10, a bottom cover 20, and a PCB board 30. The face cover 10 and the bottom cover 20 may be integrally formed with each other, and the PCB board 30 is positioned between the face cover 10 and the bottom cover 20. The face cover 10 is provided with a key region through which corresponding mechanical keys on the PCB board 30 are pressed to control the headset.

The face cover 10 adopts a double-color injection molding process, namely the face cover is composed of an inner layer and an outer layer and comprises a soft rubber cover body 11 and a hard rubber cover body 12 arranged on the inner side of the soft rubber cover body 11. The soft rubber cover 11 is a place touched by a user's hand, and may be made of a TPE (Thermoplastic elastomer) or a TPU (Thermoplastic Urethane elastomer). The hard rubber cover 12 may be made of a common hard rubber such as ABS + PC (ABS and PC compound).

The hard rubber cover 12 is provided with a key hole 121, and the key hole 121 is located in a key area, that is, a position where the key hole corresponds to a mechanical key on the PCB 30. A button elastic arm 40 is arranged in the button hole 121, and the button elastic arm 40 is fixed on the side wall of the button hole 121. The elastic arm 40 can be integrally formed on the hard rubber cover 12, and has a certain elasticity to facilitate pressing deformation. The upper end face of the soft rubber cover body 12 is provided with a raised key identification so as to facilitate the identification of a user and the pressing of fingers.

When pressing, the finger is acted on the button elastic arm 40, and considering the button elastic arm 40 and the deformation factor of the soft rubber cover body 11, the button hole 121 in the button region needs to be large enough, and the area of the button hole can be 1.5 to 2 times of the area of the elastic arm, so that the soft rubber cover body 11 can generate large enough deformation in the pressing process, and the button hand feeling is improved.

The button elastic arm 40 includes a pressing portion 41 and a connecting portion 42 connected to each other, and the pressing portion 41 may be circular to facilitate pressing by a finger and has a size larger than that of the connecting portion 42. The length and the thickness of the button elastic arm 40 also influence the hand feeling of the button, the button elastic arm 40 is too long or too thin, the rigidity of the button elastic arm 40 is reduced, and the elasticity is weakened; the key elastic arm 40 is too short or thick, the rigidity will become strong, the pressing is difficult, and the hand feeling of the key is affected. Therefore, in order to improve the hand feeling of the key, the length of the elastic arm 40 of the key is designed to be 3-5 times of the width of the connecting part 42, and the thickness is slightly smaller than the wall thickness of the surface cover.

Further, a boss 43 is fixedly disposed at a lower end of the pressing portion 41, and the boss 43 may be substantially cylindrical. By arranging the cylindrical boss 43 on the key elastic arm 40, the design can lead the contact point of the key elastic arm 40 to be concentrated with the contact stress of the mechanical key contact surface on the PCB 30, and the contact stability is good.

Furthermore, the stroke of the user pressing the key has a certain influence on the hand feeling of the key, and the pressing stroke between the key elastic arm 40 and the mechanical key in the embodiment is controlled to be 0.05-0.15 mm.

When the PCB 30 is assembled on the bottom cover 20, if the assembly is unbalanced and in an inclined state, the elastic arm 40 of the key on the front cover 10 and the mechanical key on the PCB 30 may be in inconsistent stroke, so that the pressing and rebounding force of the key may be affected, and the hand feeling consistency of the key is poor. Therefore, in this embodiment, the bottom cover 20 is provided with a plurality of positioning pillars 50, the PCB 30 is provided with positioning grooves adapted to the positioning pillars 50, and the PCB 30 is assembled and balanced on the bottom cover 20 through the cooperation between the positioning pillars 50 and the positioning grooves.

In the present embodiment, in order to further improve the stability of the assembly of the PCB 30, the positioning column 30 is designed to be step-shaped, that is, the positioning column 50 includes a first positioning portion 51 and a second positioning portion 52 fixedly disposed on one side of the first positioning portion 51, and an end surface of the second positioning portion 52 is lower than an end surface of the first positioning portion 51, so as to support the upper plate 31.

The positioning slot is matched with the first positioning portion 51 in size, and the lower plate 32 is provided with a groove matched with the second positioning portion 52. When the positioning device is installed, the groove of the upper plate 31 is aligned with the first positioning portion 51, and the lower surface of the upper plate 31 is located at the upper end of the second positioning portion 52; the groove of the lower plate 32 is aligned with the second positioning portion 52, forming a stable positioning structure.

The number of the positioning columns 50 is determined according to actual requirements, and three positioning columns are provided in the present embodiment, wherein one positioning column is located on one side of the bottom cover 20, and the other two positioning columns are located on the other side of the bottom cover 20 and are distributed in a triangular shape. The balance stability of the assembly of the PCB board 30 is improved by providing three positioning columns 50.

It can be understood that the bottom cover 20 can also be provided with a key region, the function of the key is realized by setting a key elastic arm, and the structure thereof, i.e. the realization principle, is the same as that of the surface cover, and is not described herein again.

In this embodiment, set up key hole 121 through the button region on the ebonite lid body 11 of face lid 10, this key hole 121 corresponds with the mechanical button on the PCB board 30 to set up the button elastic arm in key hole 121 and realize the function of pressing down of button, this size design of key hole 121 is 1.5 ~ 2 times of button elastic arm 40 size, be convenient for press, effectual promotion button is felt, improve user experience and product quality, satisfy consumers in general's demand.

The embodiment of the utility model provides a still provide a bluetooth headset, this bluetooth headset includes the button in the above-mentioned embodiment, and this button can be formed on bluetooth headset's control box, through carrying out innovation and optimization to the structure according to the key region, realizes promoting the purpose that bluetooth headset button was felt under the prerequisite that does not influence other functions.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a key, is in including face lid, bottom and setting face lid with PCB board between the bottom, its characterized in that, the face lid includes flexible glue lid and setting the inboard ebonite lid of flexible glue lid, the button hole has been seted up on the ebonite lid, the button hole with mechanical button position on the PCB board corresponds, be provided with the button elasticity arm in the button hole, button elasticity arm one end is fixed on the lateral wall of button hole, the size of button hole does 1.5 ~ 2 times of button elasticity arm size.

2. The key of claim 1, wherein the key elastic arm comprises a pressing portion and a connecting portion, and the size of the pressing portion is larger than that of the connecting portion.

3. The key of claim 2, wherein a boss is fixedly arranged at the lower end of the pressing portion.

4. The key of claim 2, wherein the pressing portion is circular.

5. The key of claim 2, wherein the overall length of the key elastic arm is 3 to 5 times the width of the connecting portion.

6. The key of claim 1, wherein the pressing distance between the key elastic arm and the mechanical key is 0.05-0.15 mm.

7. The key of claim 1, wherein the bottom cover is fixedly provided with a plurality of positioning posts, and the PCB board is provided with positioning grooves adapted to the positioning posts.

8. The key of claim 7, wherein the PCB comprises an upper plate and a lower plate located below the upper plate, the positioning column comprises a first positioning portion and a second positioning portion fixed on one side of the first positioning portion, an upper end surface of the second positioning portion is lower than an upper end surface of the first positioning portion for bearing the upper plate, the positioning groove is adapted to a size of the first positioning portion, and a groove adapted to the second positioning portion is formed in the lower plate.

9. The key of claim 7, wherein three of said positioning posts are provided, one of said positioning posts is located on one side of said bottom cover, the other two of said positioning posts are located on the other side of said bottom cover, and three of said positioning posts are distributed in a triangular shape.

10. A bluetooth headset, characterized in that it comprises a key as claimed in any one of claims 1 to 9.

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