CN214672295U - Mobile terminal - Google Patents

Abstract

The utility model relates to a mobile terminal, include: the shell is provided with a groove, the side wall of the groove is provided with a through hole, and the through hole is communicated to the groove from the outer side of the shell; the switch assembly is arranged in the groove and comprises a circuit board with a switch, wherein the switch corresponds to the key; the sealing element is sleeved on the switch, is in interference fit in the groove and is used for sealing the corresponding through hole; the key is arranged in the through hole; when the key is pressed, the front end of the key is abutted against the sealing piece to press the switch. The utility model discloses a when the sealing member played effectual dustproof and waterproof's effect, also improved and pressed and felt, the equipment convenience also promotes by a wide margin.

Description

Mobile terminal

Technical Field

The utility model relates to an electronic equipment technical field especially relates to mobile terminal.

Background

With the continuous progress of technology, the functions of electronic devices are more and more. The entity keys for realizing various functions are necessary, such as a switch machine key, a volume adjusting key, a screen locking key, a photographing key and the like.

Typically, the user activates the switch function by pressing a physical key located in the through hole of the housing. Therefore, dust or liquid can enter the shell through the through hole to damage components.

In the related art, the through hole is sealed by interference-fitting the waterproof needle assembly into the through hole of the housing. When the user pressed the button, conducted pressing force to the switch through waterproof needle to the trigger switch function leads to pressing and feels poor, and because waterproof needle subassembly undersize, when installing waterproof needle subassembly in the through-hole, the equipment was very inconvenient.

SUMMERY OF THE UTILITY MODEL

For overcoming the problem that exists among the correlation technique, the utility model provides a mobile terminal, include: the shell is provided with a groove, the side wall of the groove is provided with a through hole, and the through hole is communicated to the groove from the outer side of the shell; the switch assembly is arranged in the groove and comprises a circuit board with a switch; the sealing element is sleeved on the switch, is in interference fit in the groove and is used for sealing the corresponding through hole; the keys are arranged in the corresponding through holes, and the switches correspond to the keys; when the key is pressed, the front end of the key is abutted against the sealing piece so as to press the switch.

In some embodiments, the seal comprises a body portion, a pressing portion, and a sealing portion connected; the body part is fixed on the circuit board, and the pressing part corresponds to the switch and is positioned between the switch and the key; the sealing part surrounds the pressing part and is in interference fit with a gap between the circuit board and the shell.

In some embodiments, a sectional dimension of the pressing portion is smaller than a sectional dimension of the sealing portion in a pressing direction.

In some embodiments, the switch assembly further comprises a mounting plate disposed within the recess; the circuit board is fixed in the mounting panel, the sealing member is fixed in the circuit board.

In some embodiments, the mounting plate includes a plate body and clamping portions formed by bending inward from two end portions of the plate body, wherein the plate body abuts against a side wall of the groove far away from the through hole, and the sealing member is clamped between the clamping portions and the plate body.

In some embodiments, the top of the plate body is provided with a barrier strip extending towards the through hole.

In some embodiments, a sidewall of the groove remote from the through hole is provided with a notch; the top of the plate body is provided with a limiting block corresponding to the notch, and the limiting block can be embedded into the notch.

In some embodiments, the housing comprises a front housing and a rear housing, wherein the through-hole is provided in the rear housing; the front shell and the rear shell are fixed through a first sealant and a second sealant, wherein the second sealant is located on the inner side of the first sealant.

In some embodiments, a sealing groove is provided on the top surface of the rear housing, and a sealing block corresponding to the sealing groove is provided on the bottom surface of the front housing; a first sealing table is arranged on the top surface of the rear shell and positioned on the inner side of the sealing groove, and a second sealing table corresponding to the first sealing table is arranged on the bottom surface of the front shell; the sealing groove and the sealing block are fixed through dispensing; the first sealing platform and the second sealing platform are fixed through back glue.

In some embodiments, a guide groove is provided in the through hole in the pressing direction; the key includes: the key body is arranged in the through hole; the pressing pin is arranged at the front end of the key body and corresponds to the switch; and the limiting pin is arranged on the key body and is arranged in the guide groove in a sliding manner.

The embodiment of the utility model provides a technical scheme can include following beneficial effect: the switch is sleeved with the sealing piece, and the sealing piece is in interference fit with the through hole in the groove and on the sealing shell, so that the effective dustproof and waterproof effects are achieved. Only having spaced the sealing member between switch and the button, the user only needs can trigger the switch function through the sealing member when pressing the button, and in the prior art, the waterproof needle in interval between button and the switch compares, and satisfying under dustproof and waterproof's the prerequisite, the user presses and feels and also has obtained effective promotion. The sealing element is in interference fit in the groove to seal the through hole, and compared with the prior art that the waterproof needle assembly is placed in the through hole to seal the through hole, the installation is more convenient, and the assembly convenience is improved.

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 invention as claimed.

Drawings

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

Fig. 1 is a schematic structural diagram of a mobile terminal shown according to an exemplary embodiment of the present disclosure.

Fig. 2 is a partially exploded schematic view of a mobile terminal shown according to an exemplary embodiment of the present disclosure.

Fig. 3 is a schematic partial cross-sectional view of a mobile terminal shown according to an exemplary embodiment of the present disclosure.

Fig. 4 is another partial cross-sectional schematic view of a mobile terminal shown according to an exemplary embodiment of the present disclosure.

FIG. 5 is a schematic structural diagram illustrating a mounting plate according to an exemplary embodiment of the present disclosure.

Fig. 6 is an enlarged schematic view of a portion of the structure of a mounting plate shown in accordance with an exemplary embodiment of the present disclosure.

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 embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

In the related art, the waterproof pin assembly is interference-fitted into the through hole (key hole) of the casing to seal the through hole (key hole) and prevent dust or water from entering the casing through the through hole. Particularly, waterproof subassembly includes the waterproof needle of column and the silica gel circle of cover on locating waterproof needle. The waterproof needle with the silica gel sleeve is arranged in the through hole of the shell, the waterproof needle is positioned between the key and the switch, and the silica gel ring sleeved on the waterproof needle is in interference fit with the through hole.

Because the waterproof needle assembly is too small, the waterproof needle assembly is very inconvenient to assemble when being installed in the through hole. In addition, when a user presses the key, the pressing force is transmitted to the switch on the circuit board through the waterproof needle, so that the pressing hand feeling is poor.

In view of the above problems, the embodiments of the present disclosure provide a mobile terminal, which is sleeved on a switch through a sealing member and is in interference fit with a groove communicated with a through hole, so as to achieve the purposes of dust prevention and water prevention, improve hand feeling, and facilitate assembly.

Fig. 1 is a schematic structural diagram of a mobile terminal shown according to an exemplary embodiment of the present disclosure. Fig. 2 is a partially exploded schematic view of a mobile terminal shown according to an exemplary embodiment of the present disclosure. Fig. 3 is a schematic partial cross-sectional view of a mobile terminal shown according to an exemplary embodiment of the present disclosure.

As shown in fig. 1, 2, and 3, the mobile terminal 100 of the present disclosure may be a smart phone, a tablet computer, a notebook computer, a personal digital assistant, a wearable device such as a smart band, a smart watch, or the like. The embodiments of the present disclosure are described by taking a smart phone as an example, but not limited thereto.

The mobile terminal 100 may include a housing, a key 40, a switch assembly 20, and a sealing member 21. The shell is provided with a groove 14, the side wall of the groove 14 is provided with a through hole 11, and the through hole 11 is communicated to the groove 14 from the outer side of the shell. The keys 40 are mounted in the corresponding through holes 11. Disposed within recess 14 is a switch assembly 20 that includes a circuit board 23 with a switch 22, wherein switch 22 corresponds to a key 40. The sealing member 21 is sleeved on the switch 22 and is in interference fit with the groove 14 for sealing the corresponding through hole 11. When the user presses the key 40, the front end of the key 40 abuts against the sealing member 21 to press the switch 22, so as to realize the related function. Such as locking the screen, volume adjustment, turning on and off, taking a picture, etc.

The housing serves as an external appearance of the mobile terminal 100, and supports and protects various functional components inside the mobile terminal 100. The housing is provided with a through hole 11 and a groove 14 communicating with the through hole 11. The through hole 11 is used for the key 40 to pass through, so that the key 40 can extend into the groove 14 to press the switch 22. The key 40 can be partially exposed out of the housing from the through hole 11, thereby serving as a part of the appearance of the housing to supplement the missing part of the through hole 11 in the housing. The part of the keys exposed outside the shell can be approximately flush with the outer surface of the shell or slightly protruded from the outer surface of the shell, so that a user can touch and press the keys. In addition, the size and shape of the through hole 11 may be matched with the size and shape of the key 40 to reduce the gap between the key 40 and the through hole 11. The housing may be a metal housing or a plastic housing. The shape of the housing may be square, rectangular, circular, oval, or the like.

In some examples, the through hole 11 may be disposed at a side of the housing, so that the key 40 may be used as a side key of the mobile terminal 100, for example, a volume key, a lock screen key, etc. In other examples, the through hole 11 may be disposed at the top of the housing, so that the key 40 may be used as a power on/off key, a photographing key, etc. of the mobile terminal 100. In addition, in some examples, the number of the through holes 11 may be one or more, so as to allow one or more keys 40 to pass through, thereby realizing different key functions. And one key 40 may press one or more switches, such as volume up-down keys, respectively.

In some embodiments, as shown in fig. 1 and 2, the housing may include a front housing 30 and a rear housing 10. The front case 30 may serve as an inner support of the mobile terminal 100 to support components. For example, the front housing 30 may support a stationary display screen assembly at the front and a stationary motherboard, battery, and camera at the rear. The front case 30 may also be referred to as a middle frame.

The rear housing 10 is fixedly connected to the front housing 30 to form a sealed accommodating space for accommodating the above components, so as to achieve dust and water resistance. One or more through holes may be opened at the rear case 10. For example, the rear case 10 may include a bottom plate and a bezel formed around the bottom plate, and the bezel may include two opposite side walls and a top wall and a bottom wall adjacent to the two side walls. Two through holes may be formed in the side wall of the rear housing 10 for two keys to pass through respectively. Such as a lock screen key and a volume key. But not limited thereto, a through hole may be opened at the top wall of the rear case 10, and the number of the through holes may be one or more. The rear case 10 may also be referred to as a rear cover (battery cover). It should be noted that although fig. 1 shows that the side wall of the rear housing 10 is provided with a through hole for the key 40 to pass through, the invention is not limited thereto, and in other embodiments, one or more through holes for the side key 40 to pass through may be provided on the side wall of the rear housing 10.

A groove 14 communicating with the through hole 11 is provided in the housing. The recess 14 may be in the form of a bar for receiving the switch assembly 20. The groove 14 may include a first sidewall adjacent to the through-hole 11 and a second sidewall remote from the through-hole 11, wherein the first sidewall and the second sidewall are opposite.

As shown in fig. 3, the switch assembly includes a circuit board 23 and one or more switches 22 (e.g., dome switches) integrated on the circuit board 23. The circuit board 23 may rest against a second side wall of the recess 14 remote from the through hole 11. For example, the circuit board 23 may be a Flexible Printed Circuit (FPC), and a reinforcing steel plate 24 may be adhered to a back surface of the flexible printed circuit through a back adhesive to support the flexible printed circuit 23, so as to improve the supporting strength. The flexible circuit board may rest against the second side wall of the recess by means of a reinforcing steel plate 24. But not limited thereto, the circuit board 23 may be a rigid circuit board, so that a support of the reinforcing steel plate may not be required.

The switch 22 faces the key 40, and the switch 22 is pressed by the key 40 to implement a corresponding switch function. The switches 22 on the circuit board 23 may match the number of keys 40. For example, the circuit board 23 may be integrated with three switches 22, each corresponding to a corresponding key 40.

FIG. 5 is a schematic structural diagram illustrating a mounting plate according to an exemplary embodiment of the present disclosure. As shown in fig. 2 and 5, the sealing member 21 is sleeved on the switch 22 and is in interference fit with the groove 14 of the housing to seal the through hole 11, so as to achieve the purpose of preventing dust and water through the through hole 11. The number of seals 21 matches the number of through-holes 11 to seal one or more through-holes 11. One end of the sealing member 21 may abut against a first sidewall of the groove 14 adjacent to the through hole 11 and cover the through hole 11, and the other end of the sealing member 21 may abut against a second sidewall of the groove 14 far from the through hole 11. When the key 40 is pressed, the key moves towards the inside of the housing, the front end of the key 40 abuts against the sealing member 21, and the switch 22 is pressed through the sealing member 21, so that the switching function is realized. The sealing member 21 may be made of a flexible material such as silicone rubber, or the like.

The mobile terminal 100 according to the embodiment of the present disclosure, on one hand, is disposed on the switch 22 through the sealing member 21, and is in interference fit with the groove 14 to seal the through hole on the housing 10, so that the mobile terminal 100 plays an effective role in dust and water prevention. On the other hand, only one layer of sealing element 21 is arranged between the switch 22 and the key 40, when the user presses the key 40, the switch function can be triggered only through the sealing element 21, and compared with the waterproof needle arranged between the key and the switch in the prior art, the dustproof and waterproof touch feeling of the user is effectively improved on the premise of meeting the requirements of dust prevention and water prevention. In another aspect, the sealing member 21 is interference fitted in the groove to seal the through hole, which is more convenient to install and improves the convenience of assembly compared with the prior art in which a waterproof needle assembly is placed in the through hole to seal the through hole.

In some embodiments, as shown in fig. 3, the sealing member 21 may include a body portion 211, a pressing portion 212, and a sealing portion 213 connected to each other. The body 211 is fixed to the circuit board 23, and the pressing portion 212 is located between the switch 22 and the key 40 corresponding to the switch 22. The sealing portion 213 surrounds the pressing portion 212 and is interference-fitted to a gap between the circuit board 23 and the housing.

The body portion 211, the pressing portion 212, and the sealing portion 213 may be integrally molded. The body portion 211 has an accommodation space for accommodating the switch 22 on the circuit board 23. The pressing portion 212 is located between the switch 22 and the key 40, when the user presses the key 40, the front end of the key 40 abuts against the pressing portion 212, and the switch 22 is pressed through the elastic deformation of the pressing portion 212 to trigger the corresponding switch function. The circuit board 23 abuts against a second sidewall of the groove 14 far away from the through hole. The sealing portion 213 is in a ring shape, surrounds the pressing portion 212, is in interference fit with the circuit board 23 and the first sidewall of the groove 14 adjacent to the through hole, and covers the through hole to seal the through hole and prevent dust or water from entering the inside of the housing through the through hole.

In the mobile terminal 100 according to the embodiment of the present disclosure, when the user presses the key 40, the front end of the key 40 abuts against the pressing portion 212 of the sealing member 21, and the switch 22 is pressed by the deformation of the pressing portion 212, so as to implement the related functions of the switch. Since only one layer of pressing part 212 is arranged between the switch 22 and the key 40, the pressing force is hardly obstructed, and therefore, the pressing feeling of the user is greatly improved.

In one example, as shown in fig. 3, in a longitudinal section of the seal 21, a sectional dimension of the pressing portion 212 is smaller than a sectional dimension of the seal portion 213 in the pressing direction. The cross-sectional dimension of the sealing portion 213 may be as long as possible to increase the contact area with the housing and ensure the sealing effect at the time of interference fit. The cross-sectional dimension of the pressing portion 212 can be as short as possible to reduce resistance to pressing and improve the feeling of pressing.

In some embodiments, as shown in fig. 2, 3 and 5, the switch assembly 20 further includes a mounting plate 25 disposed within the recess 14. The circuit board 23 is fixed to the mounting plate 25, and the sealing member 21 is fixed to the circuit board 23.

The mounting plate 25 may be in the form of a strip, and the sealing member 21 may be fixed to the circuit board 23 by glue, and then the circuit board 23 may be fixed to the mounting plate 25 by glue. For example, the circuit board 23 may be directly attached to the mounting plate 25, or may be attached and fixed to the mounting plate 25 by the reinforcing steel plate 24 raised as described above. Then, the mounting plate 25, the circuit board 23 and the sealing member 21 are placed in the groove 14 together, the sealing member 21 is in interference fit in the groove 14, the mounting plate 25 is abutted against a second side wall of the groove 14 far away from the through hole through elastic potential energy of the sealing member 21, and finally, the mounting plate 25, the circuit board 23 and the sealing member 21 are fixed in the groove 14 as a whole.

This is disclosed through being in the same place mounting panel 25, circuit board 23 and sealing member 21 as a whole fixed for mounting panel 25, circuit board 23 and sealing member 21 are the modularization, and when installing modular mounting panel 25, circuit board 23 and sealing member 21 in recess 14 like this, very convenient has simplified the equipment process, has improved the equipment convenience by a wide margin, thereby the packaging efficiency obtains promoting.

In one embodiment, fig. 6 is an enlarged schematic view of a portion of the structure of a mounting plate shown in accordance with an exemplary embodiment of the present disclosure. As shown in fig. 2, 5 and 6, the mounting plate includes a plate body 251, and clamping portions 252 formed by bending inward from two end portions of the plate body 251, wherein the plate body 251 abuts against a second sidewall of the groove 14 away from the through hole, and the sealing member 21 is clamped between the clamping portions 252 and the plate body 251.

The circuit board 23 is elongated and may have a plurality of switches 22 integrated thereon. Correspondingly, the number of the sealing members 21 may match the number of the switches 22, and a plurality of the sealing members 21 are connected together through the body portion 211 of the sealing member 21. The shape of the plate 251 may match the shape of the circuit board 23, and the plate 251 may also have a strip shape, and the two ends along the length direction of the strip plate 251 are bent inward (toward each other) to form the holding portion 252. When assembling, the sealing member 21 and the circuit board 23 are fixed together, then the circuit board 23 and the sealing member 21 pass through the gap between the clamping portion 252 and the plate 251 from bottom to top, and the body portion of the sealing member 21 is in interference fit with the gap between the clamping portion 252 and the plate 251, so as to fix the circuit board 23 and the sealing member 21 on the plate 251. The clamping portion 252 has a stable effect on the circuit board 23 and the sealing member 21, and prevents the sealing member 21 from falling off in the assembling process, so that the mounting plate 25, the circuit board 23 and the sealing member 21 are always kept as a whole, and the assembling is facilitated.

In one embodiment, as shown in fig. 5, the top of the plate 251 is provided with a stop strip 253 extending toward the through hole. The stop strip 253 acts as a stop for the circuit board 23 and the sealing member 21. When the mounting plate 25, the circuit board 23 and the sealing member 21 are assembled in the groove 14 as a whole, due to the interference fit between the sealing member 21 and the groove 14, during the assembly process, the sealing member 21 has frictional resistance with the groove 14, which easily causes the sealing member 21 to be separated from the mounting plate 25. This is disclosed through being provided with the blend stop 253 towards the through-hole extension at the top of plate body 251, can effectually prevent that sealing member 21 and circuit board 23 produce the displacement for mounting panel 25, play spacing effect to sealing member 21 and circuit board 23 for sealing member 21 can accurately aim at the through-hole, prevents that skew through-hole from influencing sealed effect.

In an embodiment, as shown in fig. 2 and 5, a side wall (second side wall) of the groove 14 remote from the through hole is provided with a notch 15. The top of the plate 251 is provided with a limit block 254 corresponding to the notch 15, and the limit block 254 can be embedded into the notch 15. After mounting panel 25, circuit board 23 and sealing member 21 assemble in recess 14 as a whole module, for preventing that this module is whole to remove for recess 14, influence sealed effect, this disclosure is through the breach 15 of the second lateral wall of recess 14 and the stopper 254 cooperation at plate body 251 top, carry on spacingly with mounting panel 25, circuit board 23 and the whole module of sealing member 21, can effectual this whole module produces the displacement for recess 14 for sealing member 21 can accurately aim at the through-hole, prevent that skew through-hole from influencing sealed effect.

In some embodiments, fig. 4 is another partial cross-sectional schematic view of a mobile terminal shown in accordance with an exemplary embodiment of the present disclosure. As shown in fig. 3 and 4, the case may include a rear case 10 and a front case 30, wherein a through hole 11 is provided to the front case 30. The rear case 10 and the front case 30 are fixed by a first sealant and a second sealant, wherein the second sealant is located inside the first sealant. The first sealant can be dispensing, and the second sealant can be back glue.

As described above, the shapes of the rear case 10 and the front case 30 are matched, and the outer edge of the rear case 10 and the outer edge of the front case 30 are sealed by two sealing adhesives, so that dust and water are more effectively prevented from entering the machine body, and the safety of the internal components of the machine body is ensured. In cooperation with the sealing member 21 for preventing dust and water from flowing through the through hole, the mobile terminal 100 according to the embodiment of the present disclosure realizes three waterproof functions, which can achieve the waterproof level of IPX8, thereby ensuring the reliability of dust and water prevention of the whole device.

In one example, as shown in fig. 3 and 4, a sealing groove 12 is provided on the top surface of the rear case 10, and a sealing block 31 (protruding block) corresponding to the sealing groove 12 is provided on the bottom surface of the front case 30, wherein the sealing groove 12 and the sealing block 31 are fixed by dispensing. A first seal land 13 is provided on the top surface of the rear case 10, and the first seal land 13 is located inside the seal groove 12. A second sealing table 32 corresponding to the first sealing table 13 is provided on the bottom surface of the front housing 30, wherein the first sealing table 13 and the second sealing table 32 are fixed by a back adhesive.

This it is sealed that first way is sealed through gluing between seal groove 12 and the sealed piece 31, the second is sealed through gum between first seal platform 13 and the second seal platform 21 and is sealed, because glue is glued the solidification back and is hard material, probably ftracture when mobile terminal 100 drops the vibration, produce the gap after the fracture, unable recovery pastes the encapsulated situation, dust or water are probably got into the casing through the gap, this disclosed embodiment is sealed through second way gum, because the gum is flexible material, difficult tearing, therefore, even under the circumstances of first way glue failure of gluing, also can seal through the second all gum and carry out dustproof and waterproof, ensure the sealed reliability of mobile terminal.

The first sealing structure is not limited to the sealing groove 12 formed on the top surface of the rear case 10 and the sealing block 31 formed on the bottom surface of the rear case 10, but the sealing block 31 may be formed on the bottom surface of the front case 30 and the sealing groove 12 formed on the top surface of the rear case 10. In other words, the positions of the seal groove 12 and the seal block 31 may be interchanged between the front case 30 and the rear case 10.

In some embodiments, as shown in fig. 2 and 3, a guide groove 16 is provided in the through hole 11 of the housing in the pressing direction. The key 40 may include a key body 41 pressing pin 43 and a stopper pin 42.

The key body 41 is disposed in the through hole 11, and the key body 41 includes a front end and a rear end, wherein the front end can extend into the groove 14, and the rear end can extend out of the housing for pressing operation by a user. The pressing pin 43 is disposed at the front end of the key body 41, corresponds to the switch 22, and is used for abutting against the sealing member 21 and pressing the switch 22 when a user presses the key, so as to implement a corresponding switch function. The stopper pin 42 is disposed on the key body 41 and slidably disposed in the guide groove 16, and the guide groove 16 extends toward the pressing direction for a predetermined stroke. The limit pin 42 cooperates with the guide groove 16 to limit the pressing stroke of the key 40 and limit the key in the through hole of the housing to prevent the key from being separated from the housing.

When the switch is used, a user presses the rear end of the key body 41, the limit pin 42 slides in the guide groove 16 along the pressing direction, the pressing pin 43 at the front end of the key body 41 is abutted against the sealing piece 21, and the switch on the circuit board 23 is pressed through the sealing piece 21 to trigger the switch function.

As shown in fig. 2, when the key 40 is used as a volume adjustment key, two limit pins 42 corresponding to volume up-down switches may be disposed at the front end of the key body 41 for respectively pressing the corresponding switches to adjust the volume.

It is understood that the term "plurality" in the present invention means two or more, and other terms are similar. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of the present invention.

It will be further understood that the terms "central," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present embodiment and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation.

It will be further understood that, unless otherwise specified, "connected" includes direct connections between the two without the presence of other elements, as well as indirect connections between the two with the presence of other elements.

It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.

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

It will be understood that the invention 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 invention is limited only by the appended claims.

Claims (10)

1. A mobile terminal, comprising:

the shell is provided with a groove, the side wall of the groove is provided with a through hole, and the through hole is communicated to the groove from the outer side of the shell;

the switch assembly is arranged in the groove and comprises a circuit board with a switch;

the sealing element is sleeved on the switch, is in interference fit in the groove and is used for sealing the through hole;

the keys are arranged in the corresponding through holes, and the switches correspond to the keys;

when the key is pressed, the front end of the key is abutted against the sealing piece so as to press the switch.

2. The mobile terminal of claim 1,

the sealing element comprises a body part, a pressing part and a sealing part which are connected;

the body portion is fixed to the circuit board,

the pressing part corresponds to the switch and is positioned between the switch and the key;

the sealing part surrounds the pressing part and is in interference fit with a gap between the circuit board and the shell.

3. The mobile terminal of claim 2,

in the pressing direction, a sectional dimension of the pressing portion is smaller than a sectional dimension of the sealing portion.

4. A mobile terminal according to any of claims 1-3,

the switch assembly further comprises a mounting plate arranged in the groove;

the circuit board is fixed on the mounting plate,

the sealing member is fixed to the circuit board.

5. The mobile terminal of claim 4,

the mounting plate comprises a plate body and clamping parts which are respectively formed by inwards bending from two end parts of the plate body,

the plate body abuts against the side wall of the groove far away from the through hole, and the sealing element is clamped between the clamping part and the plate body.

6. The mobile terminal of claim 5,

the top of the plate body is provided with a barrier strip extending towards the through hole.

7. The mobile terminal of claim 6,

a notch is formed in the side wall, far away from the through hole, of the groove;

the top of the plate body is provided with a limiting block corresponding to the notch, and the limiting block can be embedded into the notch.

8. A mobile terminal according to any of claims 1-3,

the shell comprises a front shell and a rear shell, wherein the through hole is formed in the rear shell;

the front shell and the rear shell are fixed through a first sealant and a second sealant, wherein the second sealant is located on the inner side of the first sealant.

9. The mobile terminal of claim 8,

a sealing groove is formed in the top surface of the rear shell, and a sealing block corresponding to the sealing groove is arranged on the bottom surface of the front shell;

a first sealing table is arranged on the top surface of the rear shell and positioned on the inner side of the sealing groove, and a second sealing table corresponding to the first sealing table is arranged on the bottom surface of the front shell;

the sealing groove and the sealing block are fixed through dispensing; the first sealing platform and the second sealing platform are fixed through back glue.

10. A mobile terminal according to any of claims 1-3,

a guide groove along the pressing direction is arranged in the through hole;

the key includes:

the key body is arranged in the through hole;

the pressing pin is arranged at the front end of the key body and corresponds to the switch;

and the limiting pin is arranged on the key body and is arranged in the guide groove in a sliding manner.

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