A mobile terminal

Abstract

The present disclosure relates to a mobile terminal, comprising: a middle frame; a fingerprint assembly installed from outside to inside along a side of the middle frame in a first direction, the first direction being the same as the moving direction of the fingerprint assembly; and a button assembly installed on the middle frame in a second direction, the second direction being perpendicular to the first direction, and the working surface of the button assembly being parallel to the second direction; the side of the middle frame is in a conic curve shape, and the button assembly and the fingerprint assembly are arranged in the first direction with a spacing, for increasing the curvature of the side of the middle frame. Through the above structure, the production failure rate can be avoided, the assembly and maintenance are simple, and the cost is reduced. In addition, the fingerprint assembly and the button assembly are respectively installed on the middle frame from the outside and the back, the cutting of the middle frame from inside to outside can be avoided, the thickness of the mobile terminal is reduced, the strength of the middle frame is ensured, and the curvature of the side of the middle frame is increased, so that the mobile terminal is more light and thin and beautiful.

Description

Technical Field

[0001] This disclosure relates to the field of terminal equipment, and more particularly to a mobile terminal. Background Technology

[0002] With the development of mobile phone technology and modern people's high demands for mobile phone user experience, fingerprint function has emerged in the history of mobile phone development. Fingerprint unlocking, fingerprint payment, fingerprint recognition and other new high technologies have developed rapidly. Fingerprint function has become indispensable in the 4G / 5G era. However, with the changing mobile phone usage environment, market users have increasingly higher requirements for mobile phone waterproofing. Mobile phones are expensive, but if they are accidentally dropped into water, they will be rendered useless instantly. This makes it necessary to put waterproof design on the agenda. If IP68 waterproof design can be applied to smartphones, it will bring consumers a better user experience and provide more comprehensive protection for the phone. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a mobile terminal.

[0004] According to a first aspect of the present disclosure, a mobile terminal is provided, comprising: a mid-frame; a fingerprint component mounted from the outside to the inside on a side portion of the mid-frame along a first direction, the first direction being the same as the movement direction of the fingerprint component; and a button component mounted on the mid-frame along a second direction; the second direction being perpendicular to the first direction, and the working surface of the button component being parallel to the second direction; the side portion of the mid-frame being conical, and the button component and the fingerprint component being spaced apart in the first direction to increase the curvature of the side portion of the mid-frame.

[0005] In some embodiments, the mid-frame is provided with a dispensing groove, which is connected to the battery compartment of the mobile terminal; the fingerprint component includes a flexible circuit board, which passes through the mid-frame into the battery compartment via the dispensing groove and is sealed with adhesive within the dispensing groove.

[0006] In some embodiments, the opening of the dispensing groove is located at the rear of the middle frame.

[0007] In some embodiments, the middle frame further includes: a fingerprint hole, the opening of which is located on the side of the middle frame and communicates with the outside, for mounting the fingerprint component; a button hole, the opening of which is located at the rear of the middle frame, for mounting the button component; and a first connecting hole for connecting the fingerprint hole and the button hole, wherein a guide post is provided in the first connecting hole, and the fingerprint component presses the button component by pushing the guide post.

[0008] In some embodiments, a sealing ring is fitted around the guide post, and the sealing ring is interference-fitted with the first connecting hole.

[0009] In some embodiments, the middle frame is funnel-shaped at the opening of the fingerprint hole, and after the fingerprint component is installed in the fingerprint hole, the pressing surface of the fingerprint component is lower than the side of the middle frame.

[0010] In some embodiments, the fingerprint assembly further includes: a pressing body protruding from the fingerprint hole; a pressing plate connected to the pressing body and disposed inside the fingerprint hole; the pressing plate having a push rod that abuts against the guide post; and a chip located between the pressing body and the pressing plate and electrically connected to the flexible circuit board.

[0011] In some embodiments, the pressing plate further includes: a first hook and a second hook, symmetrically disposed at both ends of the pressing plate along the length direction of the pressing plate; the middle frame further includes: a first bracket and a second bracket, respectively cooperating with the first hook and the second hook, for limiting the farthest distance the fingerprint component can move toward the side of the middle frame.

[0012] In some embodiments, the middle frame further includes: a first support cavity, which opens toward the rear of the middle frame, for accommodating the first support and the first hook; and a second support cavity, which opens toward the rear of the middle frame, for accommodating the second support and the second hook.

[0013] In some embodiments, the first bracket cavity is connected to the fingerprint hole; one end of the second bracket cavity is connected to the fingerprint hole, and the other end is connected to the adhesive groove; adhesive sealing foam is provided between the second bracket cavity and the adhesive groove.

[0014] In some embodiments, the button assembly includes a button switch and a TPU pad, the TPU pad being wrapped around the outside of the button switch.

[0015] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0016] First, separating the fingerprint component and the button component can avoid the high failure rate of fingerprint buttons, simplify assembly and maintenance, and reduce production costs.

[0017] Secondly, separating the fingerprint and button components allows for a smaller size for both, resulting in less material being cut off from the mid-frame and preventing any weakening of the mid-frame's strength. While maintaining the mid-frame's strength, this design allows for a reduction in the mid-frame's thickness in the front-to-back direction and an increase in the bending angle or curvature of the mid-frame's sidewalls, making the mobile terminal appear thinner and more aesthetically pleasing.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0020] Figure 1 This is a cross-sectional view of a mobile terminal at the fingerprint component and button component according to an exemplary embodiment.

[0021] Figure 2 This is an exploded view of a mobile terminal with a fingerprint component and a button component, according to an exemplary embodiment.

[0022] Figure 3 This is a schematic diagram illustrating the structure of a mobile terminal after a fingerprint component has been installed, according to an exemplary embodiment.

[0023] Figure 4 This is a cross-sectional view of a mobile terminal according to an exemplary embodiment.

[0024] Figure 5 This is a cross-sectional view of a dispensing tank for a mobile terminal injecting adhesive according to an exemplary embodiment.

[0025] Figure 6 This is a cross-sectional view of a mobile terminal at a dispensing groove, according to an exemplary embodiment. Detailed Implementation

[0026] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0027] In related technologies, mobile terminals often incorporate fingerprint buttons in a single unit. However, this design suffers from low production yield, high technical challenges, and high R&D and production costs, making it unsuitable for widespread adoption in mobile terminals. Furthermore, the integrated fingerprint button design results in a large volume and area occupied by the structure, requiring installation from the inside to the outside of the frame. Consequently, significant alloy cutting occurs at the fingerprint button location, greatly weakening the frame's strength and making it prone to deformation, thus impacting the lifespan of the mobile terminal.

[0028] Furthermore, in related technologies, mobile terminals using a fingerprint button integrated structure lack waterproofing or have low waterproof and dustproof ratings. This allows water and dust to enter the mid-frame at the fingerprint button integrated structure, affecting the use and lifespan of the internal components of the mobile terminal.

[0029] Furthermore, the large size and area of ​​the fingerprint button-integrated structure, particularly its substantial thickness, contribute to a thicker mid-frame, resulting in a boxy appearance that makes the device appear bulky and less lightweight. Moreover, the large and thick mid-frame limits the curvature of the mid-frame and sides of the device, further hindering its slimness and aesthetic appeal, and failing to meet the requirements of a high-end, sophisticated design.

[0030] Therefore, given the current trend towards ultra-sleek and aesthetically pleasing mobile devices, there is a need to provide a mobile terminal that addresses the aforementioned technical challenges while simultaneously meeting design requirements such as IP68 waterproofing, frame strength, and a slim and lightweight appearance. IP68 is the highest level of dust and water resistance in the GB / T4208-2017 Enclosure Protection Rating (IP Code). To assess the enclosure's resistance to solids and water, look at the last two digits of the IP code. The first digit indicates the dust resistance rating, ranging from 0 to 6, with 6 being the highest; the second digit indicates the water resistance rating, ranging from 0 to 8, with 8 being the highest.

[0031] The mobile terminal can be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet, medical device, fitness equipment, personal digital assistant, translator, watch, bracelet, or other wearable device. In this embodiment, a mobile phone is used as an exemplary embodiment for detailed description.

[0032] According to an exemplary embodiment, such as Figure 1 The image shows a cross-sectional view of the mobile terminal at the fingerprint component 50 and the button component 60, as shown. Figure 2 The image shown is an exploded view of the fingerprint component 50 and the button component 60 on the mobile terminal.

[0033] like Figure 1 As shown, the mobile terminal includes a mid-frame 10, a display panel 20 is disposed at the front of the mid-frame 10, and a phone back cover 30 is disposed at the rear of the mid-frame 10. The mid-frame 10 has a frame structure; that is, the middle part of the mid-frame 10 is hollowed out. Figure 2 As shown, a battery compartment 40 can be formed in the middle of the frame 10 to accommodate the battery 41 and other electronic components of the mobile terminal.

[0034] The orientation of the middle frame 10 is conveniently described by defining its front, rear, side, and inner portions. Specifically, the front portion of the middle frame 10 refers to the side where the display panel 20 is located. The rear portion of the middle frame 10 refers to the side where the back cover 30 is located. The side portion of the middle frame 10 refers to the side located between the front and rear portions, containing buttons and providing a gripping area for the user. The inner portion of the middle frame 10 refers to the side where the battery 41 is located. The interior portion of the middle frame 10 refers to the area between the side and the inner portion.

[0035] Meanwhile, the directions of the front and rear parts of the middle frame 10 can be referred to as the thickness direction of the middle frame 10, and the directions of the sides and inside of the middle frame 10 can be referred to as the width direction of the middle frame 10.

[0036] In one embodiment, the mobile terminal may further include a fingerprint component 50 and a button component 60. In one embodiment, the fingerprint component 50 can collect and recognize fingerprints for purposes such as unlocking the mobile terminal or making mobile terminal payments. A long press on the button component 60 can be used to power on or off. It should be noted that the functions of the fingerprint component 50 and the button component 60 described above are merely exemplary and can be modified according to design requirements. For example, the button component 60 can be used to adjust volume, screen brightness, etc.

[0037] In one embodiment, both the fingerprint component 50 and the button component 60 are mounted on the middle frame 10, meaning the middle frame 10 serves as the mounting carrier for both the fingerprint component 50 and the button component 60. Specifically, the fingerprint component 50 is disposed on the side of the middle frame 10, and the button component 60 is embedded inside the middle frame 10. The fingerprint component 50 can abut against the button component 60 to push the button component 60.

[0038] When the fingerprint component 50 is not pressed, lightly touching it causes the fingerprint component 50 to collect and recognize the fingerprint, thus enabling its corresponding function. When the fingerprint component 50 is pressed, it comes into contact with the button component 60, thereby pushing the button component 60 to perform its corresponding function. Alternatively, pressing the fingerprint component 50 can simultaneously activate the functions of both the fingerprint component 50 and the button component 60.

[0039] In one embodiment, for example Figure 1 and Figure 2 As shown, the middle frame 10 may include a fingerprint hole 11, a button hole 12, and a first connecting hole 13. The first connecting hole 13 is located between the fingerprint hole 11 and the button hole 12, allowing the fingerprint hole 11 and the button hole 12 to communicate.

[0040] In one embodiment, the fingerprint hole 11 is used to mount a fingerprint assembly 50, which can move relative to the mid-frame 10 within the fingerprint hole 11. Specifically, the fingerprint hole 11 opens towards the side of the mid-frame 10, that is, the opening of the fingerprint hole 11 is located on the side of the mid-frame 10.

[0041] In addition, the fingerprint hole 11 is connected to the outside world. That is, after the fingerprint component 50 is installed at the fingerprint hole 11, part of the structure of the fingerprint component 50 can be exposed in the middle frame 10, so that the user can touch and press the fingerprint component 50. Pressing the fingerprint component 50 causes the fingerprint component 50 to move in the fingerprint hole 11 along the width direction of the middle frame 10, thereby completing the function of pushing the button component 60.

[0042] Furthermore, in this embodiment, the fingerprint hole 11 has an oblong shape, with its length aligned with the length of the phone and its width aligned with the thickness of the phone or the mid-frame 10. The fingerprint component 50 corresponding to the fingerprint hole 11 is also oblong. Therefore, the fingerprint component 50 of this disclosure can reduce the thickness of the mid-frame 10 in the thickness direction, making the mobile terminal appear thinner and more aesthetically pleasing.

[0043] In one embodiment, the fingerprint component 50 is mounted from the outside to the inside on the side of the middle frame 10 along a first direction. The button component 60 is mounted on the middle frame 10 along a second direction. The first direction is the same as the direction of movement of the fingerprint component 50, and the second direction is perpendicular to the first direction. The working surface of the button component 60 is parallel to the second direction. The working surface of the button component 60 refers to the side of the button component 60 that is pressed.

[0044] Therefore, when installing the fingerprint component 50, it needs to be installed from the side of the middle frame 10 towards the inside of the middle frame 10. Thus, the opening on the side of the middle frame 10 corresponding to the fingerprint component 50 in this disclosure does not need to be too large; an opening with the same area as the fingerprint component 50 is sufficient. Furthermore, the button component 60 is installed from the back to the front inside the middle frame 10 along the second direction. This avoids the large button component 60 being installed from the inside to the side of the middle frame 10, thereby reducing the corresponding cutting amount on the middle frame 10, preventing weakening of the middle frame 10's strength, reducing deformation, and meeting the strength design requirements of the middle frame 10. Therefore, the middle frame 10 of this disclosure satisfies both strength requirements, resistance to deformation, and a slim and lightweight appearance.

[0045] In one embodiment, the side of the mid-frame 10 is conical, and the fingerprint component 50 and the button component 60 are spaced apart in a first direction to increase the curvature of the side of the mid-frame 10. As can be seen from the above, the spaced arrangement of the fingerprint component 50 and the button component 60 on the mid-frame, and the mounting method of the button component 60 and the fingerprint component 50, ensures the strength of the mid-frame 10 at the fingerprint component 50, thus reducing the thickness of the mid-frame 10 and the curvature of the conical curve, making the mobile terminal appear thinner and lighter.

[0046] Furthermore, such as Figure 2 and Figure 3 As shown, the middle frame 10 is funnel-shaped at the opening of the fingerprint hole 11. Specifically, the side of the middle frame 10 is recessed inward at the fingerprint hole 11, forming a funnel-shaped groove 14. The opening of the fingerprint hole 11 is located on the bottom wall of the groove 14. The funnel-shaped groove 14 refers to the gradual transition from the side of the middle frame 10 towards the fingerprint hole 11. In addition, after the fingerprint component 50 is installed in the fingerprint hole 11, the pressing surface of the fingerprint component 50 is lower than the side of the middle frame 10.

[0047] Therefore, through the above structural design, this disclosure allows users to sense the position of the fingerprint component 50 by touching it with their fingers, enabling faster unlocking, payment, and power-on / off functions. Furthermore, the pressing surface of the fingerprint component 50 is lower than the side of the mid-frame 10, which not only enhances the overall aesthetics of the device but also prevents the fingerprint component 50 from protruding from the side of the mid-frame 10, thus avoiding scratches or other damage.

[0048] In one embodiment, the button hole 12 is used to mount the button assembly 60. Specifically, the button hole 12 opens towards the rear of the mid-frame 10, meaning the opening of the button hole 12 is located at the rear of the mid-frame 10, and the opening direction of the button hole 12 is perpendicular to the opening direction of the fingerprint hole 11. Furthermore, the button hole 12 is not connected to the outside; that is, after the button assembly 60 is mounted at the button hole 12, the button assembly 60 will be embedded inside the mobile terminal, preventing the user from directly touching and pressing the button assembly 60.

[0049] Furthermore, the opening of the button hole 12 faces the rear of the middle frame 10. When installing the button assembly 60, the button assembly 60 is installed into the button hole 12 from the rear of the middle frame 10. After the button assembly 60 is installed into the button hole 12, the opening of the button hole 12 is covered by the waterproof foam 70 and the back cover 30 of the phone. The waterproof foam 70 is located between the back cover 30 of the phone and the rear of the middle frame 10. On the one hand, it can seal the opening of the button hole 12, and on the other hand, it can fix the back cover 30 of the phone and seal the battery compartment 40 to prevent external moisture or dust from entering the battery compartment 40.

[0050] Furthermore, in this embodiment, the outline of the button hole 12 is also waist-shaped, and the length direction of the button hole 12 is consistent with the length direction of the mobile phone. The corresponding button assembly 60 disposed at the button hole 12 is also waist-shaped. In addition, the thickness direction of the button hole 12 is consistent with the width direction of the middle frame 10, and the thickness of the button hole 12 is small in the thickness direction.

[0051] Therefore, the above structure avoids cutting the middle frame 10 in the thickness direction at the fingerprint component 50, thus preventing weakening of the middle frame 10's strength. Furthermore, separating the button component 60 from the fingerprint component 50 reduces the production defect rate of the fingerprint button-in-one structure, simplifying assembly and repair, and lowering R&D and production costs. On the other hand, it avoids the need for an installation process from the inside to the side of the middle frame 10 due to the large area of ​​the fingerprint button-in-one structure, further reducing the cutting of the middle frame 10's alloy at the corresponding locations of the fingerprint component 50 and button component 60, resulting in less weakening of the middle frame 10's strength.

[0052] Furthermore, since the thickness between the side and the inside of the mid-frame 10 ensures the strength of the mid-frame 10, the thickness direction of the mid-frame 10 can be made thinner while maintaining the same strength. Specifically, the side of the fingerprint component 50 can be conical, and the curvature of the side of the mid-frame 10 can be increased, making the side of the mid-frame 10 appear sharper and thinner.

[0053] In one embodiment, the first connecting hole 13 is located between the fingerprint hole 11 and the button hole 12, and connects the fingerprint hole 11 and the button hole 12. A guide post 15 is provided at the first connecting hole 13, and the two ends of the guide post 15 abut against the fingerprint component 50 and the button component 60 respectively. The fingerprint component 50 pushes the button component 60 through the guide post 15 to realize the power on / off function of the mobile phone.

[0054] Furthermore, a sealing ring 151 is fitted around the outside of the guide post 15. The sealing ring 151 is press-fitted with the first connecting hole 13 to block the communication between the fingerprint hole 11 and the button hole 12. Therefore, this disclosure can prevent dust or moisture entering through the fingerprint hole 11 from entering the button hole 12 through the first connecting hole 13.

[0055] Furthermore, the sealing ring 151 is elastic and can undergo elastic deformation. Therefore, under the action of the sealing ring 151, the guide post 15 can move relative to the first connecting hole 13 within the first connecting hole 13. Thus, the fingerprint assembly 50 can push the button assembly 60 through the elastic deformation of the sealing ring 151 on the guide post 15. Simultaneously, the interference fit between the sealing ring 151 and the first connecting hole 13 ensures the sealing of the button hole 12. When the fingerprint assembly 50 is no longer under force, the sealing ring 151 rebounds under the action of elastic deformation, allowing the fingerprint assembly 50 to return to its original position.

[0056] In one embodiment, for example Figure 2 and Figure 4 As shown, the fingerprint component 50 includes a pressing body 51, a pressing plate 52, a chip (not shown in the figure), and a flexible circuit board 53.

[0057] Furthermore, the pressing body 51 has a flat and elongated columnar structure. After the fingerprint component 50 is installed in the fingerprint hole 11, the pressing surface of the fingerprint component 50 is lower than the side of the middle frame 10, but the pressing body 51 protrudes from the fingerprint hole 11.

[0058] The pressing plate 52 is connected to the pressing body 51 and is disposed inside the fingerprint hole 11 on the inner surface of the pressing body 51. The pressing plate 52 is provided with a push rod 521, which abuts against the guide post 15. Pressing the pressing body 51 of the fingerprint assembly 50 causes the pressing body 51 to move the pressing plate 52 within the fingerprint hole 11, and the push rod 521 of the pressing plate 52 pushes the guide post 15, which in turn pushes the button assembly 60, thereby enabling the button assembly 60 to perform the power on / off function. In a specific embodiment, the push rod 521 is disposed in the middle of the pressing plate 52.

[0059] In one embodiment, the pressing plate 52 is further provided with a first hook 522 and a second hook 523. The first hook 522 and the second hook 523 are symmetrically arranged at both ends of the pressing plate 52 along the length direction of the pressing plate 52, and the push rod 521 is located between the first hook 522 and the second hook 523. The first hook 522 and the second hook 523 are used to limit the farthest distance that the fingerprint component 50 moves toward the side of the middle frame 10, thereby confining the fingerprint component 50 within the fingerprint hole 11 and preventing the fingerprint component 50 from falling out of the fingerprint hole 11.

[0060] Furthermore, both the first hook 522 and the second hook 523 include an extension plate 524 and a blocking plate 525. The extension plate 524 is perpendicular to the pressing plate 52, and the blocking plate 525 is perpendicular to the pressing plate 52. The blocking plates 525 of the first hook 522 and the second hook 523 can be arranged facing each other or opposite each other; this is not limited here. Furthermore, the pressing plate 52 is integrally formed. That is, the push rod 521, the first hook 522, and the second hook 523 are integrally formed. Therefore, this disclosure has a simple structure and is easy to install.

[0061] Correspondingly, a first bracket 16 and a second bracket 17, as well as a first bracket cavity 161 and a second bracket cavity 171, are provided on the middle frame 10. For example... Figure 3As shown, the first bracket cavity 161 corresponds to the position of the first hook 522, and the first bracket cavity 161 is used to accommodate the first bracket 16 and the first hook 522. The second bracket cavity 171 corresponds to the position of the second hook 523, and the second bracket cavity 171 is used to accommodate the second bracket 17 and the second hook 523. When the fingerprint assembly 50 is installed in the fingerprint hole 11 from the outside to the inside, the first hook 522 is located in the first bracket cavity 161, and the second hook 523 is located in the second bracket cavity 171.

[0062] Both the first support cavity 161 and the second support cavity 171 are arranged to open towards the rear of the middle frame 10, such as Figure 5 As shown, both the first support cavity 161 and the second support cavity 171 are connected to the fingerprint hole 11.

[0063] After the fingerprint component 50 is installed, the first bracket 16 and the second bracket 17 are installed from the rear to the front of the middle frame 10 into the first bracket cavity 161 and the second bracket cavity 171, respectively, so as to cooperate with the blocking plates 525 of the first hook 522 and the second hook 523 to confine the fingerprint component 50 in the fingerprint hole 11 and prevent the fingerprint component 50 from falling off from the fingerprint hole 11.

[0064] Furthermore, the chip is positioned between the pressing body 51 and the pressing plate 52, and the flexible circuit board 53 is electrically connected to the chip. The flexible circuit board 53 needs to be connected to the circuit board located inside the battery compartment 40. Only in this way can the fingerprint component 50 realize fingerprint acquisition and fingerprint recognition.

[0065] Correspondingly, the mid-frame 10 is provided with an adhesive groove 18, which is arranged along a third direction with the fingerprint hole 11 in the mid-frame 10. This third direction is perpendicular to the first direction, and the adhesive groove 18 is positioned towards the rear opening of the mid-frame 10. Figure 4 and Figure 6 As shown, the dispensing groove 18 is connected to the battery compartment 40. Figure 4 As shown, the adhesive dispensing groove 18 is connected to the second support cavity 171, and the second support cavity 171 is connected to the fingerprint hole 11. Therefore, as shown in the figure... Figure 4 As shown, the flexible circuit board 53 can enter the fingerprint hole 11 through the opening of the fingerprint hole 11, enter the second support cavity 171 through the fingerprint hole 11, enter the dispensing groove 18 through the second support cavity 171, and enter the battery compartment 40 through the dispensing groove 18.

[0066] Furthermore, such as Figure 5 and Figure 6As shown, glue 181 is then injected into the glue dispensing tank 18 for sealing, preventing external moisture or dust from entering the battery compartment 40 along the flexible circuit board 53 and causing contamination or damage to the components inside the battery compartment 40, thereby extending the service life of the mobile terminal. Therefore, this disclosure can achieve IP68 level waterproof and dustproof performance.

[0067] As described above, the fingerprint sensor 11 and the battery compartment 40 are not connected in the first direction. The adhesive dispensing groove 18 and the fingerprint sensor are arranged in the third direction, and the adhesive dispensing groove 18 is connected to the battery compartment 40 in the first direction. This prevents dust and moisture entering through the fingerprint sensor 11 from directly entering the battery compartment 40. Furthermore, the adhesive dispensing groove 18 is filled with adhesive, further preventing dust and moisture entering the adhesive dispensing groove 18 from entering the battery compartment 40. This structure creates a multi-layered waterproof effect.

[0068] In one embodiment, for example Figure 2 As shown, a sealing foam 19 is provided between the second support cavity 171 and the dispensing groove 18 to prevent the adhesive 181 in the dispensing groove 18 from entering the second support cavity 171 during dispensing. The sealing foam 19 is made of EVA or PE foam as the base material, coated with solvent-based (or hot-melt) pressure-sensitive adhesive on one or both sides, and then covered with release paper. It has sealing and shock-absorbing functions, and exhibits excellent sealing performance, resistance to compression deformation, flame retardancy, and wettability.

[0069] In one embodiment, the button assembly 60 includes a TPU pad 61 and a button switch 62. The TPU pad 61 covers the outside of the button switch 62. When the fingerprint assembly 50 pushes the button assembly 60 through the guide post 15, the TPU pad 61 of the button assembly 60 can prevent the button switch 62 from being damaged by pressure. TPU (Thermoplastic polyurethanes) is a polymer material formed by the reaction and polymerization of diisocyanate molecules such as diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) with macromolecular polyols and low-molecular-weight polyols (chain extenders).

[0070] The advantages of this disclosure based on the above mobile terminal structure are as follows:

[0071] First, the fingerprint component 50 and the button component 60 are set separately, which can avoid the production defect rate of fingerprint buttons, simplify assembly and maintenance, and reduce production costs.

[0072] Secondly, separating the fingerprint component 50 and the button component 60 reduces their size, resulting in less material being cut off from the mid-frame 10 and preventing any weakening of its strength. While maintaining the strength of the mid-frame 10, this allows for a reduction in its thickness in the front-to-back direction and an increase in the bending angle or curvature of its sidewalls, making the mobile terminal appear thinner and more aesthetically pleasing.

[0073] Third, the middle frame 10 is provided with a dispensing groove 18, which is connected to the battery compartment 40. After the flexible circuit board 53 enters the battery compartment 40 through the dispensing groove 18 and the connecting hole of the battery compartment 40, glue 181 is injected into the dispensing groove 18 to seal the connecting hole, thereby preventing external moisture and dust from entering the battery compartment 40 through the connecting hole, and improving the waterproof requirements of the mobile terminal at the fingerprint component 50.

[0074] It is understood that the mobile terminal provided in this disclosure embodiment includes hardware structures and / or software modules corresponding to each function in order to achieve the above-mentioned functions. In conjunction with the units and algorithm steps of the various examples disclosed in this disclosure embodiment, this disclosure embodiment can be implemented in hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of this disclosure embodiment.

[0075] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0076] It is understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0077] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0078] It is further understood that the terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0079] It can be further understood that, unless otherwise specified, "connection" includes both direct connections where no other components exist between the two parties and indirect connections where other components exist between them.

[0080] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0081] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following scope of claims.

[0082] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A mobile terminal, characterized by comprising: The mobile terminal comprises: a middle frame having a fingerprint hole and a button hole connected with each other, an opening of the fingerprint hole is located at a side of the middle frame and communicates with the outside; an opening of the button hole is located at a rear of the middle frame, an opening direction of the button hole is perpendicular to an opening direction of the fingerprint hole, and the button hole does not communicate with the outside; a fingerprint assembly is installed in the fingerprint hole from outside to inside along a first direction at the side of the middle frame, the first direction is the same as a moving direction of the fingerprint assembly; and a button assembly is installed in the button hole from the rear to the front inside the middle frame along a second direction, the second direction is perpendicular to the first direction, and a working surface of the button assembly is parallel to the second direction; the side of the middle frame is in a conic curve shape, the button assembly and the fingerprint assembly are arranged in the first direction with a spacing for increasing the curvature of the side of the middle frame; the middle frame further comprises: a first communication hole for communicating the fingerprint hole and the button hole, a guide post is arranged in the first communication hole, the fingerprint assembly presses the button assembly by pushing the guide post.

2. The mobile terminal according to claim 1, wherein the middle frame is provided with a glue dispensing groove, the glue dispensing groove communicates with a battery compartment of the mobile terminal; the fingerprint assembly comprises a flexible circuit board, the flexible circuit board passes through the middle frame into the battery compartment through the glue dispensing groove, and is sealed by glue dispensing in the glue dispensing groove.

3. The mobile terminal of claim 2, wherein, an opening of the glue dispensing groove is located at the rear of the middle frame.

4. The mobile terminal of claim 1, wherein, an outer part of the guide post is provided with a sealing rubber ring, the sealing rubber ring is in interference fit with the first communication hole.

5. The mobile terminal of claim 1, wherein, the middle frame is in a funnel shape at the opening of the fingerprint hole, after the fingerprint assembly is installed in the fingerprint hole, a pressing surface of the fingerprint assembly is lower than the side of the middle frame.

6. The mobile terminal of claim 2, wherein, the fingerprint assembly further comprises: a pressing body protruding from the fingerprint hole; a pressing plate connected with the pressing body and arranged inside the fingerprint hole, the pressing plate is provided with a push rod, the push rod abuts against the guide post; a chip located between the pressing body and the pressing plate and electrically connected with the flexible circuit board.

7. The mobile terminal according to claim 6, wherein the pressing plate further comprises: a first hook and a second hook symmetrically arranged at two ends of the pressing plate along a length direction of the pressing plate; the middle frame further comprises: a first support and a second support matched with the first hook and the second hook respectively, for limiting a farthest distance of the fingerprint assembly moving to the side of the middle frame.

8. The mobile terminal of claim 7, wherein, the middle frame further comprises: a first support cavity arranged to open towards the rear of the middle frame, for accommodating the first support and the first hook; a second support cavity arranged to open towards the rear of the middle frame, for accommodating the second support and the second hook.

9. The mobile terminal according to claim 8, wherein the first support cavity communicates with the fingerprint hole; one end of the second support cavity communicates with the fingerprint hole, and the other end communicates with the glue dispensing groove; glue sealing foam is arranged between the second support cavity and the glue dispensing groove.

10. The mobile terminal of claim 1, wherein, the button assembly comprises: A push button switch and a TPU gasket wrapped on the outside of the push button switch. A push button switch and a TPU gasket wrapped on the outside of the push button switch.

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