Earphone button structure and earphone
Technical Field
The utility model relates to an electronic equipment field particularly relates to an earphone button structure and earphone.
Background
The keys of the earphone product are realized by adopting plastic parts to conduct the acting force of a person to the PCB. With the popularization of Bluetooth and intelligent earphones, the use scenes of keys on the earphones are more and more. Due to the difference of use scenes, the requirements of people on earphone keys are higher and higher, the requirements on key fixation, hand feeling, water resistance and sweat resistance are higher and higher, and the requirements cannot be met by common earphone keys.
Therefore, the utility model provides an earphone button structure and earphone for solve the problem among the prior art.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.
The utility model provides an earphone key structure, which comprises a shell, an inner key, an outer key, a key boss and a PCB board; wherein,
the outer key is movably embedded on the surface of the shell in the direction towards the inner key;
the inner key comprises a movable part and a fixed part, the fixed part is fixedly and hermetically connected with the shell, one side of the movable part is connected with the outer key, the other side of the movable part is fixedly connected with the key boss, and the key boss is in contact with the PCB;
soft materials are further arranged between the fixed part and the movable part and between the outer keys so as to seal the inner keys.
Illustratively, the fixed part is provided as a ring-shaped member, the movable part is provided as a cylindrical member located at the center of the ring-shaped member, and the fixed part and the movable part are connected by a cantilever beam.
Illustratively, the housing is provided with a groove matched with the fixed part.
Illustratively, the shell is provided with a buckling structure matched with the outer key, and the shell is buckled with the outer key part.
Illustratively, the outer shell is provided with a hot-melting column, and the inner key is provided with a hole matched with the hot-melting column.
Illustratively, an adhesive layer is arranged between the fixing part and the shell.
Illustratively, the soft material covers the movable portion and the stationary portion.
Illustratively, the soft material includes a silicone elastomer, a thermoplastic elastomer, or a thermoplastic polyurethane elastomer.
For example, the material of the outer shell and/or the inner key is a hard material.
The utility model also provides an earphone, including above-mentioned arbitrary one earphone button structure.
According to the utility model discloses an earphone button structure and earphone adopts soft materials sealed fixed part and movable part through the interior button that will be connected with outer button, through fixed and sealing connection between fixed part and the shell, has effectively guaranteed fixed, waterproof, sweat-proof and the dustproof performance of button.
Drawings
The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles of the invention.
In the drawings:
fig. 1 is a schematic view of an earphone button structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an inner key of the earphone key structure observed in the direction A of FIG. 1;
fig. 3 is a schematic structural diagram of an inner key of the earphone key structure observed according to the direction B in fig. 1.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
In order to thoroughly understand the present invention, a detailed description will be provided in the following description to illustrate the earphone of the present invention. It is apparent that the implementation of the invention is not limited to the specific details familiar to a person skilled in the art of electronic devices. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. In the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same elements are denoted by the same reference numerals, and thus the description thereof will be omitted.
Example one
In order to solve the problems in the prior art, the utility model provides an earphone button structure, which comprises a shell, an inner button, an outer button, a button boss and a PCB board; wherein,
the outer key is movably embedded on the surface of the shell in the direction towards the inner key;
the inner key comprises a movable part and a fixed part, the fixed part is fixedly and hermetically connected with the shell, one side of the movable part is connected with the outer key, the other side of the movable part is fixedly connected with the key boss, and the key boss is in contact with the PCB;
soft materials are further arranged between the fixed part and the movable part and between the outer keys so as to seal the inner keys.
The earphone of the present invention is schematically described with reference to fig. 1, fig. 2 and fig. 3, wherein fig. 1 is a schematic view of an earphone button structure according to an embodiment of the present invention; FIG. 2 is a schematic structural view of an inner key of the earphone key structure observed in the direction A of FIG. 1; fig. 3 is a schematic structural diagram of an inner key of the earphone key structure observed according to the direction B in fig. 1.
Referring first to fig. 1, the earphone key according to the present invention comprises a housing 1, an outer key 2, an inner key 3, a key boss 5 and a PCB 6.
Illustratively, the housing 1 is a plastic material. Further, the housing 1 is exemplarily made of Acrylonitrile Butadiene Styrene (ABS) copolymer material.
The outer key 2 is connected with the inner key 3, and the outer key 2 is movably embedded on the surface of the shell 1 in the direction towards the inner key 3. Outer button 2 sets up to hard material, and outer button 2 is mobilizable inlay in the surface of shell 1, and the earphone user can be through exerting pressure in the direction towards interior button 3 when pressing outer button 2 to transmit pressure to PCB board 6 through interior button 3 on.
With continued reference to fig. 1, the inner key 3 comprises a movable portion 31 and a fixed portion 32, the fixed portion 32 being fixedly and sealingly connected to the housing 1. One side of the movable part 31 is connected with the outer key 2, the other side is connected with the key boss 5, and the key pattern is contacted with the PCB. When the key is pressed, the inner key 3 moves in the direction towards the inner key 2, pressure is applied to the movable part 31 of the inner key 3, the movable part 31 correspondingly generates displacement to enable the key boss 5 connected with the movable part to generate displacement, and the position of the key boss 5 generates pressure on the PCB 6, so that a circuit on the PCB is conducted, and the key effect is generated.
With continued reference to fig. 1, the inner keys 3 are sealed by the soft material 4 between the movable part 31 and the fixed part 32 and in a direction towards the outer keys 2. The soft material 4 covers the movable portion 31 and the fixed portion 32.
Referring to fig. 2 and 3, schematic structural diagrams of the inner key viewed from the a direction and the B direction of fig. 1 are shown, respectively.
As shown in fig. 2, the fixed part 32 of the inner key 3 is configured as a ring-shaped member, the movable part 31 is configured as a column-shaped member located at the center of the ring-shaped member, the fixed part 32 and the movable part 31 are connected by a cantilever beam 311, and one side of the column-shaped member is connected with the outer key 2 (not shown) and the other side is connected with the key boss 5. In the actual key pressing process, the outer key is connected with the cylindrical movable part, so that in the process of pressing the outer key, the cylindrical part slightly displaces due to the deformation of the cantilever beam, the key boss connected with the cylindrical part also displaces to press the PCB, and the effect of the key is finally achieved.
Because the casing 1 of the earphone key structure is often made of hard materials, the fixed part 32 and the movable part 31 which are integrally formed with the inner key 3 are also made of hard materials, and a good sealing and fixing effect between the casing and the inner key is formed. Illustratively, the hard material is an acrylonitrile-butadiene-styrene copolymer material (ABS), a polystyrene material (PS), or the like.
And at the same time, in order to avoid that the inner key 3 itself is structured so as to cause a deterioration of the sealing effect, the soft material 4 is arranged in the direction of the fixed part 32 and the movable part 31 of the inner key towards the outer key 2. Referring to fig. 2 and 3, in particular, the soft material is embedded in the inner key which is integrally formed. As shown in fig. 2, the soft material is embedded between the cantilever beam, the ring member, and the pillar member in the direction observed from the direction a in fig. 1; as shown in fig. 3, the soft material covers the entire surface of the inner key in the direction viewed from the direction B in fig. 1, so that the soft material provides a good sealing effect to the inner key during the mounting process. Therefore, the effect of sealing the whole key structure can be achieved only by sealing and fixing the inner key and the shell, and the fixing, waterproof, sweat-proof and dustproof performances of the keys are finally guaranteed.
Illustratively, the soft material includes silicone, thermoplastic elastomer (TPE), and/or thermoplastic polyurethane elastomer (TPU).
It should be understood that the present embodiment is only exemplary in the form that the inner key is disposed as the annular member, the cantilever beam and the column member, and the inner key is disposed and sealed in the form that the soft material is embedded on the inner key, and any inner key form including the movable portion and the fixed portion, and the manner that the soft material seals the inner key are all applicable to the present invention.
With continued reference to fig. 1, the seal between the inner key and the outer shell of the present invention will be further described.
As shown in fig. 1, the housing 1 is provided with a groove for matching with the inner key 3. After the inner key 3 is pressed into the groove on the housing 1 to perform initial fixing in the actual installation process, an adhesive layer is arranged between the fixing portion 32 and the housing 1 to perform sealing fixing.
In this embodiment, since the soft material 4 covers the inner key 3 as a whole and is pressed in the groove of the housing 1 in a pressing manner, the effect of auxiliary fixation between the soft material 4 and the housing 1 is effectively increased. Because the inner key 3 and the housing 1 are fixed by two separate parts which are made of hard materials, a gap or a groove is usually left at the fixed connection part between the inner key 3 and the housing 1, as shown in fig. 1, a groove 33 is left at the side surface of the fixed part 32 of the inner key 3, and at the moment, an adhesive layer is arranged between the fixed part 32 and the housing 1, so that the sealing performance between the housing 1 and the fixed part 32 is effectively improved. The adhesive layer is illustratively provided as glue applied between the housing 1 and the stationary part 32. Glue is coated, and the glue can penetrate into a gap or a groove of the connecting part of the fixing part 32 and the shell 1, so that the fixing part 32 and the shell 1 are effectively sealed, and the method is simple and low in cost.
It should be understood that the provision of the groove on the housing 1 for engaging with the inner key 3 for initial fixing of the housing and the outer key is merely exemplary, and the initial fixing between the inner key 3 and the housing 1 is further achieved by providing the snap structure on the housing 1 for engaging with the inner key 3 to snap the inner key 3 into the slot on the housing 1. The snap structure may be provided, for example, by a snap arranged on the housing, and the fixing portion is provided in the form of a through hole, which is not limited herein.
Illustratively, as shown in fig. 1, 2 and 3, the housing 1 is provided with a heat-fusible column 11, the heat-fusible column 11 is provided with a hole matched with the inner key 3, the heat-fusible column 1 is softened after being heated, and can be fixed with the fixing portion 32 after being cooled by applying a certain force, so as to further strengthen the fixed connection between the housing 1 and the fixing portion 32.
Example two
The utility model also provides an earphone, include if implement one the earphone button, according to the utility model discloses an earphone button sets up to including the part that sets up to soft materials and through soft materials part and the fixed and sealing connection of shell through the interior button that will press the key connection with outer, has effectively guaranteed the fixed, waterproof, sweat-proof and the dustproof performance of button, thereby according to the utility model discloses an earphone also has above-mentioned advantage.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.