CN212727130U - Mobile terminal side key structure and terminal - Google Patents

Abstract

The present disclosure relates to a side key structure of a mobile terminal and a terminal, wherein a middle frame comprises: the edge of the frame protrudes upwards to form a blocking wall, and the blocking wall is provided with a groove; the sealing element has elasticity and is filled in the groove; the side key circuit lead passes through the sealing element at the groove, and the sealing element forms a liquid seal structure at the position of the groove for the side key circuit lead to pass through. According to the side key circuit, the lead wire penetrates through the groove of the blocking wall, the sealing element is filled in the groove, so that the sealing element and the blocking wall form a liquid seal structure, and water or dust and the like are prevented from entering the middle frame from the groove.

Description

Mobile terminal side key structure and terminal

Technical Field

The disclosure relates to the technical field of terminal equipment, in particular to a mobile terminal side key structure and a terminal.

Background

The terminal takes a mobile phone as an example, along with the high-speed development of smart phones, the dependence degree of people on the mobile phone is higher and higher, the mobile phone is required to be used anytime and anywhere, the use environment is more and more complicated, if the waterproof and dustproof functions of the mobile phone are not good, the service life of the mobile phone is seriously influenced, and therefore the waterproof and dustproof protection requirements on the mobile phone are increasingly enhanced. For example, there is a gap between the key and the housing, the gap communicates with the external environment, and water, dust, etc. in the external environment can enter from the gap between the key and the housing, and then enter the inside of the housing through the gap between the key circuit and the housing, so that a sealing structure needs to be arranged to achieve waterproof and dustproof effects.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a mobile terminal side key structure and a terminal.

According to a first aspect of the embodiments of the present disclosure, there is provided a mobile terminal side key structure, including:

the edge of the frame protrudes upwards to form a blocking wall, and the blocking wall is provided with a groove;

the sealing element has elasticity and is filled in the groove;

the side key circuit lead passes through the sealing element at the groove, and the sealing element forms a liquid seal structure at the position of the groove for the side key circuit lead to pass through.

In some embodiments, the seal comprises:

a first seal member located at the bottom of the groove;

a second seal positioned within the groove and stacked above the first seal,

the second sealing member cooperates with the first sealing member to form the fluid seal structure at a side key circuit lead passing through the groove from between the second sealing member and the first sealing member.

In some embodiments, the joint of the blocking wall and the sealing element is provided with a limiting groove which is formed by being recessed away from the center of the groove;

at least part of the sealing element is filled in the limiting groove.

In some embodiments, the bezel further comprises:

the side wall is positioned outside the blocking wall; and the side wall is provided with a mounting hole for mounting the key.

In some embodiments, the seal comprises silicone.

According to a second aspect of the embodiments of the present disclosure, there is provided a terminal, including:

in the side key structure of any one of the above embodiments, the frame is a middle frame;

and a sealing wall is arranged at the position of the blocking wall.

In some embodiments, the terminal further comprises:

a side key circuit lead having a connection terminal located on a surface of the sealing wall away from the center of the middle frame;

the elastic sheets are distributed at intervals with the connecting terminals;

the key is arranged in a side wall mounting hole of the middle frame, and the elastic sheet is fixed on the key;

after the key is pressed, the key drives the elastic sheet to be electrically connected with the connecting terminal.

In some embodiments, the key is a volume adjustment key or a power key.

In some embodiments, the terminal further comprises:

and the battery cover is arranged on the side key structure and covers the sealing wall.

In some embodiments, the terminal further comprises:

and the battery cover is respectively bonded on the middle frame and the sealing wall through the sealant.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

according to the embodiments, the side key circuit lead wire of the present disclosure passes through the groove of the blocking wall, and the sealing member is filled in the groove, so that the liquid seal structure is formed in the groove by using the elasticity of the sealing member, and the liquid seal structure inhibits water, dust, or the like from entering the frame from the groove.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic structural diagram of a middle frame;

FIG. 2 is a schematic structural view of a waterproof flexible glue;

FIG. 3 is a schematic structural view of a middle frame filled with waterproof soft rubber;

FIG. 4 is one of the block diagrams illustrating the structure of a middle box according to an example embodiment

FIG. 5 is a second block diagram illustrating a second exemplary embodiment of a structure of a middle frame

FIG. 6 is a third block diagram illustrating a third block configuration in accordance with an exemplary embodiment;

FIG. 7 is a fourth block diagram illustrating a structure of a middle box according to an exemplary embodiment;

FIG. 8 is a fifth block diagram illustrating a structure of a middle box in accordance with an exemplary embodiment;

FIG. 9 is a sixth schematic diagram illustrating the structure of a middle box in accordance with an exemplary embodiment;

fig. 10 is a structural view of a battery cover.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.

In an embodiment of the present disclosure, a side key structure of a mobile terminal includes:

the edge of the frame 110 is raised upwards to form a blocking wall 120, and the blocking wall 120 is provided with a groove 121;

a sealing member 150 having elasticity and filled in the groove 121;

the side key circuit lead 200 passes through the sealing member 150 at the groove 121, and the sealing member 150 forms a liquid seal structure at the groove 121 through which the side key circuit lead 200 passes.

As shown in fig. 1, 4 and 5, the key 300 is located outside the blocking wall 120, and after the side key circuit lead 200 passes through the groove 121, the groove 121 still has a remaining space, as shown by the arrow in fig. 5, through which liquid or dust, etc. from the key 300 can enter the inside of the blocking wall 120. In the embodiment of the present disclosure, the sealing member 150 may seal the space where the side key circuit lead 200 passes through the rear groove 121 by filling the sealing member 150 in the groove 121, and a liquid sealing structure is formed in the groove 121 by using the elasticity of the sealing member 150, and the liquid sealing structure inhibits liquid, dust, or the like from entering the frame from the groove 121.

The sealing member 150 located in the groove 121 may contact the side key circuit lead 200, and the elastic sealing member 150 may reduce the pressure on the side key circuit lead 200, thereby protecting the side key circuit lead 200. Moreover, after the sealing member 150 is filled, when the frame is assembled with other components, for example, when the frame is assembled with the battery cover 500, the battery cover 500 generates pressure on the sealing member 150, and the compressed sealing member 150 not only has the front and rear end portions attached to the blocking wall 120 more tightly, but also has the bottom portion of the sealing member 150 attached to the frame 110 more tightly, and as shown in fig. 8 and 9, the top portion of the sealing member 150 is also flush with the top surface of the blocking wall 120 to form a sealing surface 160, so that liquid or dust and the like are prevented from passing through between the sealing surface 160 and the battery cover 500, and thus, the periphery of the groove 121 is sealed, and the sealing effect is improved.

Generally, the shape of the sealing member 150 is the same as that of the groove 121, and the volume of the sealing member 150 is slightly larger than that of the groove 121, so that the sealing effect is ensured after the sealing member 150 is compressed.

In one embodiment, the liquid-tight structure formed by the sealing member 150 in the groove 121 may also be a gas-tight structure capable of inhibiting the passage of gas before the liquid enters.

In the disclosed embodiment, the liquid seal broadly refers to a sealing structure capable of at least preventing liquid from passing through the groove 121, and is not limited to a sealing structure capable of only sealing liquid.

The side key circuit wires 200 may pass between the sealing member 150 and the bottom of the groove 121, i.e., the bottom surfaces of the side key circuit wires 200 are in contact with the bezel 110 and the top surfaces of the side key circuit wires 200 are in contact with the sealing member 150. Alternatively, the side key circuit wires 200 may also pass through the inside of the sealing member 150, i.e., the bottom of the sealing member 150 contacts the bezel 110, and both the bottom and top surfaces of the side key circuit wires 200 contact the sealing member 150. For example, the sealing member 150 is provided with a slit, the side key circuit lead 200 passes through the slit, when the battery cover 500 is mounted on the middle frame, the battery cover 500 generates pressure on the sealing member 150, and after the elastic sealing member 150 is compressed, the slit where the side key circuit lead 200 passes through disappears, thereby performing a sealing function. In the manner in which the side key circuit wires 200 pass through the inside of the sealing member 150, since the side key circuit wires 200 are completely in contact with the elastic sealing member 150, it is more advantageous to protect the side key circuit wires 200.

The sealing member 150 may be made of an elastic rubber material. Such as silica gel.

In the embodiment of the present disclosure, the side key circuit lead 200 may be a wire harness or a flat cable. For example, the side key circuit lead 200 is a flexible and foldable cord such as a PI (Polyimide) cord or an LCP (Liquid Crystal Polymer) cord. For another example, the side key Circuit lead 200 is a Flexible Printed Circuit (FPC) cable. The sealing can be more simply and conveniently formed by adopting the FPC wiring mode.

In contrast to the structure shown in fig. 3 and the structure shown in fig. 8, as shown in fig. 1 to 3, if the filling material such as the waterproof soft glue 400 shown in fig. 2 is filled outside the blocking wall 120 of the bezel 110 to form the structure shown in fig. 3, in order to prevent water or dust from entering the inside of the center frame, although this sealing method has certain effect, the filling material has a large volume and high cost, and the sealing effect at the position where the side key circuit lead 200 passes through is not ideal. In the embodiment of the present disclosure, the sealing element 150 is only filled in the groove 121, so that the use of the filling material is reduced, which is beneficial to reducing the cost.

In other alternative embodiments, the seal 150 includes:

a first sealing member 151 located at the bottom of the groove 121;

a second seal 152, which is located in the groove 121 and stacked above the first seal 151,

the second sealing member 152 is engaged with the first sealing member 151 to form a fluid-tight structure at the side key circuit conductive line 200 passing through the groove 121 from between the second sealing member 152 and the first sealing member 151.

As shown in fig. 6 to 8, the first seal 151 and the second seal 152 are two physically separable, split parts. The sealing member 150 may be installed by first placing the first sealing member 151 in the groove 121 as indicated by the arrow in fig. 6 and stacking the second sealing member 152 on the first sealing member 151 as indicated by the arrow in fig. 7 to form the structure shown in fig. 8, in which the side key circuit lead 200 is located between the first sealing member 151 and the second sealing member 152.

In addition, the first sealing member 151 and the second sealing member 152 may be a one-piece structure, for example, two ends of the first sealing member 151 and the second sealing member 152 are connected to each other, a gap is formed in a middle portion between the two ends, the side key circuit lead 200 may pass through the gap, after the subsequent side key circuit lead 200 passes through the gap, the two ends of the sealing member 150 may be pinched to force the center thereof by pressing the sealing member 150 and using elasticity of the sealing member 150, and a middle portion of the one-piece sealing member 150 is opened to facilitate insertion of the side key circuit lead 200. The integrated structure can reduce the installation process of the sealing member 150.

The shape of the first seal 151 and the shape of the second seal 152 may be the same or different. Likewise, the volume of the first seal 151 and the volume of the second seal 152 may be the same or different, and fig. 7 and 8 exemplarily show the first seal 151 and the second seal 152 as being identical.

In other alternative embodiments, the connection between the blocking wall 120 and the sealing member 150 has a limiting groove 122 formed by being recessed away from the center of the groove 121; at least a portion of the seal 150 fills the retaining groove 122.

As shown in fig. 6 to 8, the groove 121 penetrates the blocking wall 120, the width of the groove 121 is approximately equal to the thickness of the blocking wall 120, the limiting groove 122 does not penetrate the blocking wall 120, the width of the limiting groove 122 is smaller than the thickness of the blocking wall 120, and the limiting groove 122 can prevent the sealing member 150 from separating from the blocking wall 120 in the thickness direction, so as to ensure the installation firmness of the sealing member 150.

As shown in fig. 6 and 7, the groove 121 communicates with the stopper groove 122, and the groove 121 and the stopper groove 122 have a structure with small ends and a large middle. Generally, the sum of the volumes of the groove 121 and the limiting groove 122 is slightly smaller than the volume of the sealing member 150, so as to achieve a tight fit between the sealing member 150 and the groove 121 and the limiting groove 122, and ensure a sealing effect.

In other alternative embodiments, the frame 200 further includes:

a sidewall 130 positioned outside the blocking wall 120; the side wall 130 is provided with a mounting hole 131 for mounting the key 300.

As shown in fig. 9, when the key 300 is mounted in the mounting hole 131, liquid, dust, or the like easily enters the inside of the bezel through a gap between the key 300 and the mounting hole 131. The sidewall 130 is substantially parallel to the blocking wall 120 with a space 140 therebetween, and the side key circuit lead 200 passing through the groove 121 may be fixed outside the sidewall 130 and positioned in the space 140 between the sidewall 130 and the blocking wall 120.

An embodiment of the present disclosure further provides a terminal, including:

in the side key structure of any of the above embodiments, the frame 200 is a middle frame;

the retaining wall 120 is provided with a sealing wall.

As shown in fig. 8 and 9, the side key circuit lead 200 passes through the sealing member 150, and the sealing member 150 fills the groove 121 and forms a sealing wall. In practical applications, the middle frame is assembled with other components in the terminal, such as: as shown in fig. 9, when the middle frame is assembled with the battery cover 500, the battery cover 500 applies pressure to the sealing member 150, and the top of the compressed sealing member 150 is reused as the top surface of the sealing wall, which is flush with the top surface of the blocking wall 120 to form the sealing surface 160.

The side key circuit wires 200 may pass between the sealing member 150 and the bottom of the groove 121, i.e., the bottom surfaces of the side key circuit wires 200 are in contact with the middle frame, and the top surfaces of the side key circuit wires 200 are in contact with the sealing member 150. Alternatively, the side key circuit wires 200 may also pass through the inside of the sealing member 150, i.e., the bottom of the sealing member 150 is in contact with the middle frame, and both the bottom and top surfaces of the side key circuit wires 200 are in contact with the sealing member 150. As shown in fig. 8 and 9, the sealing member 150 includes two separated bodies, i.e., a first sealing member 151 and a second sealing member 152, and the side key circuit lead 200 passes through between the first sealing member 151 and the second sealing member 152.

Generally, as shown in fig. 4 and 5, the width of the part of the side key circuit lead 200 located in the groove 121 is smaller than the width of the groove 121, so that the side key circuit lead 200 is not exposed out of the groove 121, and the damage of the side key circuit lead 200 by pressing of parts such as the battery cover 500 during terminal assembly is reduced.

The terminal includes, but is not limited to, a mobile phone, a notebook computer, a tablet computer, a desktop computer, a television, or a wearable device.

In other optional embodiments, the terminal further includes:

a side key circuit wire 200 having a connection terminal located on a surface of the sealing wall away from the center of the middle frame;

the elastic pieces 210 are distributed at intervals with the connecting terminals of the side key circuit lead wires 200;

the key 300 is arranged in the mounting hole 131 on the side wall 130 of the middle frame, and the elastic sheet 210 is fixed on the key 300;

after the key 300 is pressed, the key 300 drives the spring 210 to be electrically connected with the connecting terminal.

As shown in fig. 9, the key 300 passes through the mounting hole 131 and is partially exposed outside the terminal, and the exposed portion is used for a user to perform manual pressing or the like. The key 300 is located partially within the space 140 between the sidewall 130 and the retaining wall 120. As shown in fig. 4, 5 and 9, one of the two ends of the side key circuit wire 200 is located inside the sealing wall and electrically connected to the chip in the middle frame; and the other end is positioned between the sealing wall and the sidewall 130 and is installed on a surface of the sealing wall opposite to the sidewall 130 and opposite to the key 300. The side key circuit lead 200 is exemplified by FPC, which generally uses polyimide or polyester film as a base material, on which a circuit and a connection terminal are formed using metal, and the elastic piece 210 is generally made of a conductive material such as metal or alloy. When the key 300 is not pressed, the elastic sheet 210 is not in contact with the connecting terminal, the circuit is in an off state, and the key 300 cannot trigger the conduction of the FPC and the chip; when the key 300 is pressed, the key 300 presses the elastic sheet 210, the elastic sheet 210 is in contact with the connecting terminal through elastic deformation, after the contact, a circuit on the FPC is communicated, the FPC is conducted with the chip, and the chip can be controlled to realize corresponding functions. After the pressing operation is completed, the elastic sheet 210 will be deformed again and restored to the state spaced from the connection terminal.

The key 300 is, without limitation, a volume adjustment key or a power key. Taking the volume key as an example, when the volume amplification key is pressed, the elastic sheet 210 is contacted with the FPC, the circuit on the FPC is communicated, and the chip controls the receiver to amplify the volume after receiving the signal from the FPC.

In other optional embodiments, the terminal further includes:

and a battery cover 500 mounted on the side key structure and covering the sealing wall.

As shown in fig. 9 and 10, the battery cover 500 is generally located on the back of the middle frame, and when the battery cover 500 is installed, the battery cover 500 contacts with the side wall 130, the blocking wall 120 and the sealing wall, a certain pressure is applied to the battery cover 500, the sealing member 150 can be compressed, and the top of the sealing wall and the top of the blocking wall 120 form a flush sealing surface 160, so that the sealing effect is ensured.

In other optional embodiments, the terminal further includes:

and a sealant 510 positioned at the edge of the battery cover 500, wherein the battery cover 500 is adhered to the middle frame and the sealing wall by the sealant 510.

As shown in fig. 9 and 10, the battery cover 500 has a sealant 510 around the periphery thereof, and the battery cover 500 is adhesively connected to the middle frame.

The sealing member 150 includes an epoxy glue or an acrylic glue having a waterproof function. For example, the sealing member 150 is a waterproof foam tape, and the base of the tape is foam, which has a buffering function and can reduce the damage to the terminal when the terminal is dropped.

In a specific example, the terminal is a mobile phone, as shown in fig. 9 and 10, a groove 121 is formed by digging a groove on the blocking wall 120 of the middle frame, and two silicone pads (i.e., a first sealing member 151 and a second sealing member 152) are stacked and placed in the groove 121. The FPC is penetrated through the middle of the two silica gel pads, and the FPC is clamped between the two silica gel pads for sealing by utilizing the compressibility of the silica gel pads, so that the upper surfaces of the blocking walls 120 of the middle frame and the second sealing element 152 positioned above form a complete sealing surface 160; the battery cover, to which a ring of waterproof foam (i.e., sealant 510) is attached, is fastened to the center frame and pressed with a certain force, so that the battery cover and the sealing surface 160 of the center frame form a sealed structure. The gap of the blocking wall 120 is completely sealed by using the compressibility of the silica gel pad, so that water and dust are effectively reduced from entering the middle frame, and the waterproof and dustproof effects with low cost are realized.

Features disclosed in several of the product embodiments provided in this disclosure may be combined in any combination to yield new product embodiments without conflict.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A mobile terminal side key structure, comprising:

the edge of the frame protrudes upwards to form a blocking wall, and the blocking wall is provided with a groove;

the sealing element has elasticity and is filled in the groove;

the side key circuit lead passes through the sealing element at the groove, and the sealing element forms a liquid seal structure at the position of the groove for the side key circuit lead to pass through.

2. The mobile terminal side key structure of claim 1, wherein the sealing member comprises:

a first seal member located at the bottom of the groove;

a second seal positioned within the groove and stacked above the first seal,

the second sealing member cooperates with the first sealing member to form the fluid seal structure at a side key circuit lead passing through the groove from between the second sealing member and the first sealing member.

3. The side key structure of claim 1, wherein the connection between the blocking wall and the sealing member has a limiting groove formed by being recessed away from the center of the groove;

at least part of the sealing element is filled in the limiting groove.

4. The mobile terminal side key structure of claim 1, wherein the bezel further comprises:

the side wall is positioned outside the blocking wall; and the side wall is provided with a mounting hole for mounting the key.

5. The mobile terminal side key structure of claim 1, wherein the seal comprises silicone.

6. A terminal, comprising:

the side key structure of any one of claims 1 to 5, wherein the frame is a middle frame;

and a sealing wall is arranged at the position of the blocking wall.

7. The terminal of claim 6, further comprising:

a side key circuit lead having a connection terminal located on a surface of the sealing wall away from the center of the middle frame;

the elastic sheets are distributed at intervals with the connecting terminals;

the key is arranged in a side wall mounting hole of the middle frame, and the elastic sheet is fixed on the key;

after the key is pressed, the key drives the elastic sheet to be electrically connected with the connecting terminal.

8. The terminal of claim 7, wherein the key is a volume adjustment key or a power key.

9. The terminal of claim 6, further comprising:

and the battery cover is arranged on the side key structure and covers the sealing wall.

10. The terminal of claim 9, wherein the terminal further comprises:

and the battery cover is respectively bonded on the middle frame and the sealing wall through the sealant.

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