CN210403569U

CN210403569U - Reinforcement connecting piece, button structure and mobile terminal

Info

Publication number: CN210403569U
Application number: CN201921649073.8U
Authority: CN
Inventors: 温权浩
Original assignee: Oppo Chongqing Intelligent Technology Co Ltd
Current assignee: Oppo Chongqing Intelligent Technology Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-04-24
Anticipated expiration: 2029-09-29

Abstract

The embodiment of the utility model discloses reinforcement connecting piece, button structure and mobile terminal. The reinforcing connecting piece is used for installing the key and the circuit board assembly, a clamping groove is formed in the reinforcing connecting piece, the key comprises a key cap, a key buckle and a key contact, the key buckle and the key contact are arranged on the key cap in a protruding mode and are arranged at intervals, the key contact is connected to the circuit board assembly, and the key buckle and at least part of the circuit board assembly are clamped in the clamping groove. The utility model discloses technical scheme settles the part through the mutual butt of button and circuit board assembly in the card is held the inslot to can directly fix circuit board assembly and button, so, can directly fix circuit board assembly and button, avoided fixing the spare part and the process that needs with button and casing, consequently, reduced the spare part and the process that are used for assembling auxiliary structure, reduced material cost and processing cost, improved assembly efficiency.

Description

Reinforcement connecting piece, button structure and mobile terminal

Technical Field

The utility model relates to a mobile device technical field, in particular to reinforcement connecting piece, button structure and mobile terminal.

Background

In order to operate the mobile terminal, a button is generally disposed on the mobile terminal, and the button is mounted on the housing and transmits an external force to a switching element on a Printed Circuit Board (PCB) in the housing, so as to control the switching element to be turned on or off.

On the mobile terminal among the correlation technique, need set up auxiliary structure in the inboard of casing usually and connect the button to prevent that the button from droing from the casing, but this kind of auxiliary structure need pass through the mounting, makes its and casing fixed back, fixes the button again, has increased fixed auxiliary structure spare part and process like this, has improved material cost and processing cost, reduces assembly efficiency.

The above is only for the purpose of assisting understanding of the technical solutions of the present invention, and does not represent an admission that the above is the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reinforcement connecting piece, button structure and mobile terminal, aim at making this reinforcement connecting piece directly fixed button and circuit board assembly, reduce the spare part of assembly, improve assembly efficiency.

In order to realize the above purpose, the utility model provides a reinforcement connecting piece for installation button and circuit board subassembly, the reinforcement connecting piece is formed with the card and holds the groove, the button includes button key cap, button and button contact, the button detain with button contact is all protruding to be located button key cap to the mutual interval sets up, button contact connect in circuit board subassembly, button detain and at least part circuit board subassembly all is held in the card is held in the inslot.

The utility model also provides a key structure, which comprises keys and a reinforcing connecting piece;

the reinforcing connecting piece is used for installing the key and the circuit board assembly, a clamping groove is formed in the reinforcing connecting piece, the key comprises a key cap, a key buckle and a key contact, the key buckle and the key contact are arranged on the key cap in a protruding mode and are arranged at intervals, the key contact is connected with the circuit board assembly, and the key buckle and at least part of the circuit board assembly are clamped in the clamping groove.

The utility model also provides a mobile terminal, which comprises a shell component and a key structure;

the key structure comprises keys and a reinforcing connecting piece;

The utility model discloses technical scheme's reinforcement connecting piece is used for installing the button in mobile terminal's circuit board subassembly. The reinforcing connecting piece is provided with a clamping groove. When the key is connected to the circuit board assembly in a matching manner, the key contact is connected to the circuit board assembly, and the key button and at least part of the circuit board assembly are clamped in the clamping groove, so that the circuit board assembly and the key can be directly fixed. When the key is required to be operated, the key contact part deviated from the key cap is pressed, so that the key contact transmits a control signal to the circuit board assembly. Therefore, the circuit board assembly and the key can be directly fixed, and parts and processes required for fixing the key and the shell are avoided. Thereby spare part and process for assembling auxiliary structure have been reduced, material cost and processing cost have been reduced, have improved assembly efficiency. And, because circuit board assembly also is located and blocks the inslot, the groove lateral wall that blocks the groove can carry out the reinforcement to circuit board assembly and support, has improved circuit board assembly's structural stability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

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

fig. 2 is a schematic structural diagram of an embodiment of the mobile terminal of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a partial cross-sectional view taken at C of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 6 is a partial cross-sectional view taken at D of FIG. 5;

fig. 7 is a schematic structural diagram of the mobile terminal according to an embodiment of the present invention, in which the protective cover and the battery are removed;

FIG. 8 is a cross-sectional view taken along line E-E of FIG. 7;

fig. 9 is a schematic structural diagram of an embodiment of a key structure of a mobile terminal according to the present invention;

FIG. 10 is a partial cross-sectional view taken at F of FIG. 9;

fig. 11 is a schematic structural diagram of another view angle according to an embodiment of the key structure of the mobile terminal of the present invention;

FIG. 12 is a sectional view taken along line G-G of FIG. 11;

FIG. 13 is a sectional view taken along line H-H of FIG. 11;

fig. 14 is a schematic structural diagram of an embodiment of a key structure removing key of the mobile terminal according to the present invention;

fig. 15 is a schematic structural diagram of an embodiment of a key of the mobile terminal according to the present invention;

fig. 16 is a schematic structural diagram of another view angle of an embodiment of a key of a mobile terminal according to the present invention;

fig. 17 is a schematic structural diagram of an embodiment of a reinforcing connecting member of a mobile terminal according to the present invention;

fig. 18 is a schematic structural diagram of another view angle of the reinforcing connecting member according to an embodiment of the present invention;

fig. 19 is a schematic structural diagram of another embodiment of the reinforcing connecting member of the mobile terminal of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Key structure	500	Circuit board assembly
10	Reinforced connecting piece	510	Circuit board body
				11	Clamping groove	530	Push switch
13	Main board	600	Protective cover
				15	Clamping part	700	Shell assembly
151	Connecting segment	710	Middle frame
				153	Clamping section	711	Base plate
30	Push-button	713	Side plate
				31	Key cap of key	7131	First mounting groove
33	Key button	7133	Mounting hole
				331	Connecting arm	715	Second mounting groove
333	Clamping arm	800	Fixing piece
				35	Key contact	900	Adhesive member
40	Let a mouthful	1000	Mobile terminal

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.

In addition, the descriptions referred to as "first", "second", etc. in this application are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model provides a reinforcement connecting piece 10, this reinforcement connecting piece 10 are used for installing button 30 and circuit board assembly 500 to be applied to mobile terminal 1000. The mobile terminal 1000 may be, but is not limited to, a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), an e-book reader, an MP3 (Moving Picture Experts Group Audio Layer III) player, an MP4 (Moving Picture Experts Group Audio Layer IV) player, a notebook computer, a car computer, a set-top box, an intelligent tv, a wearable device, a navigator, a handheld game console, etc., and may also be other electronic devices having the push switch 530. The key 30 is mounted on the housing assembly 700 through the reinforcing connector 10, and can be operated to turn on or off the push switch 530 by pressing, or can be operated to turn on or off the push switch 530 by toggling. It is understood that the key 30 and the circuit board assembly 500 are not limited to be used for turning on or off, but also for adjusting sound volume, selecting channels, and the like, when they are mounted through the reinforcing connector 10.

Referring to fig. 1, 4, 6, 8, 12, 13 and 17 to 19, in an embodiment of the present invention, the reinforcing connector 10 is used for mounting the key 30 and the circuit board assembly 500, the reinforcing connector 10 is formed with a clamping groove 11, the key 30 includes a key cap 31, a button 33 and a key contact 35, the button 33 and the key contact 35 are both convexly disposed on the key cap 31 and are arranged at an interval, the key contact 35 is connected to the circuit board assembly 500, and the button 33 and at least a portion of the circuit board assembly 500 are both clamped in the clamping groove 11.

It is understood that the holding groove 11 may be formed by providing a mold, injection molding a material to be molded in the mold, or by machining (lathing, etc.) the reinforcing connecting member 10, or by punching a stamped part, or by bending a workpiece, as long as the groove having a holding function is formed. And, this card holds groove 11 and can be the cell type (have two relative groove lateral walls) that runs through in its length direction, so set up, owing to increased the area of notch to be convenient for circuit board subassembly 500 and button 30's installation, or for the cell type (have four groove lateral walls, every two groove lateral walls set up relatively) that also has the cell wall in length direction, so set up, can hold the button 30 and circuit board subassembly 500 card in a plurality of directions and fix, facilitate the use. The material of the reinforcing connecting piece 10 can be metal (the material of the metal can be selected from stainless steel material, aluminum alloy material, copper alloy material, iron alloy material and the like), plastic (the plastic can be selected from ABS, POM, PS, PMMA, PC, PET, PBT, PPO and the like), other alloy materials and the like. Or a mixture of metal and plastic, as long as the stability of the reinforcing connecting member 10 is improved. So, be favorable to promoting the stability that sets up of reinforcement connecting piece 10 more to effectively promote practicality, reliability, and the durability of reinforcement connecting piece 10.

The utility model discloses technical scheme's reinforcement connecting piece 10 is used for installing button 30 in mobile terminal 1000's circuit board assembly 500. The reinforcing connecting member 10 is provided with a retaining groove 11. When the key 30 is connected to the circuit board assembly 500 in a matching manner, the key contact 35 is connected to the circuit board assembly 500, and the key button 33 and at least a part of the circuit board assembly 500 are held in the holding groove 11, so that the circuit board assembly 500 and the key 30 can be directly fixed. When the key 30 needs to be operated, the key contact 35 part deviating from the key cap 31 is pressed, so that the key contact 35 transmits its control signal to the circuit board assembly 500, and since the key button 33 and the circuit board assembly 500 are located in the holding groove 11 and the key contact 35 is always connected to the circuit board assembly 500, the key 30 and the circuit board assembly 500 can be well fixed even when pressed. So, can directly fix circuit board assembly 500 and button 30, avoid fixing the spare part and the process that needs with button 30 and casing, consequently, reduced the spare part and the process that are used for assembling auxiliary structure, reduced material cost and processing cost, improved assembly efficiency. In addition, since the circuit board assembly 500 is also located in the retaining groove 11, the groove sidewall of the retaining groove 11 can reinforce and support the circuit board assembly 500, thereby improving the structural stability of the circuit board assembly 500.

The key 30 in one embodiment can be mounted at any position of the housing assembly 700 through the reinforcing connecting member 10, and is not limited to the front, back or side of the housing assembly 700. The key 30 is not limited to a circular key or a bar key, and may also be a key 30 with other shapes such as a square shape, a triangular shape or a polygonal shape, and the reinforcing connecting member 10 may also be in different shapes to match and connect the keys 30 with different shapes, all within the protection scope of the embodiment of the present invention.

In one embodiment, the key button 33 may be made of a flexible material, so that when the user drives the key cap 31 to press, the key contact 35 moves toward the circuit board assembly 500, and at this time, the key button 33 may be deformed slightly, so as to facilitate the pressing of the key contact 35 on the circuit board assembly 500, and thus facilitate the transmission of the control signal.

In one embodiment, the circuit board assembly 500 and the reinforcing connecting member 10 are both provided with the relief opening 40, the relief opening 40 is communicated with the retaining groove 11, when the button 33 is disposed in the retaining groove 11 and the button 30 is in the non-pressed state, one side of the button 33 away from the relief opening 40 abuts against the wall of the retaining groove 11, and when the button 30 is in the pressed state, a part of the button 33 extends into the relief opening 40, so that the button contact 35 can press the circuit board assembly 500 conveniently, and the transmission of the control signal can be facilitated.

Referring to fig. 1, 4, 6, 8, 12, 13, and 17 to 19, the reinforcing connecting member 10 may be specifically configured as follows:

the reinforcing connecting piece 10 comprises a main body plate 13 and a clamping part 15, the clamping part 15 comprises a connecting section 151 and a clamping section 153, the connecting section 151 is connected with the main body plate 13, the clamping section 153 is connected with one side of the connecting section 151, which is far away from the main body plate 13, the connecting section 151, the clamping section 153 and the main body plate 13 jointly enclose to form the clamping groove 11, the button 33 is abutted to the clamping section 153 for clamping, and at least part of the circuit board assembly 500 is abutted to the main body plate 13 and clamped in the clamping groove 11.

The reinforcing connecting member 10 includes a main body plate 13 and a catching portion 15, and the connecting section 151 and the catching section 153 of the catching portion 15 together enclose the main body plate 13 to form a catching groove 11. When the key 30 and the circuit board assembly 500 are mounted with each other, the key contact 35 abuts against the circuit board assembly 500, the main body board 13 is located on a side of the circuit board assembly 500 away from the key 30 and abuts against the circuit board assembly 500, the retaining section 153 is located on a side of the key 30 away from the circuit board and abuts against the key 30, and the retaining groove 11 retains the key button 33 and the circuit board assembly 500 with respect to side walls of the two grooves, thereby realizing the mounting of the key 30 and the circuit board assembly 500. And, the distance between the main body plate 13 and the clamping section 153 can be increased by the connecting section 151, so that the length of the clamping part 15 can be increased, thereby reducing the structural strength of the clamping part 15, and when the key 30 and the circuit board assembly 500 need to be clamped, the groove side wall of the clamping groove 11 is ensured to have a certain deformation, thereby clamping the key 30 and the circuit board assembly 500. It should be noted that, because the main body plate 13 is located on a side of the circuit board away from the key 30 and abuts against the circuit board assembly 500, the circuit board assembly 500 can be reinforced and supported, and the structural stability of the circuit board assembly 500 is ensured. It is understood that the outer contour of the main body plate 13 should be adapted to the outer contour of the circuit board assembly 500, so as to facilitate the main body plate 13 to support the circuit board assembly 500.

And, the connecting section 151 is arranged in a flat plate shape, on one hand, the distance between the main body plate 13 and the clamping part 15 can be increased, and the flat plate has a certain width in the width direction, so that the structural strength of the clamping part 15 can be further reduced, and the elastic deformation capacity of the clamping part 15 is improved; on the other hand, the flat plate-like structure is low in production cost, does not require extra processing steps, and is stable in structure. The connecting section 151 is arranged in an arc-shaped plate shape, so that on one hand, the distance between the main body plate 13 and the clamping part 15 can be increased, and the plate-shaped structure has a certain width in the width direction, so that the structural strength of the clamping part 15 can be further reduced, and the elastic deformation capacity of the clamping part 15 is improved; on the other hand, because the structure is arc-shaped, the self has certain elastic deformation capacity, thereby improving the elastic deformation capacity of the clamping part 15, and further performing certain deformation without being torn when the clamping part needs to be propped open by the key 30 and the circuit board assembly 500.

And the clamping part 15 and the main body plate 13 are in circular arc transition. The clamping part 15 in arc transition can enable the stress to be more uniform, stress concentration is avoided, and when the clamping part 15 needs to be extended, the extension process is more stable.

Further, in order to improve the reliability of the reinforcing connecting member 10 and ensure the reliability and stability of the installation of the key 30 and the circuit board assembly 500, the reinforcing connecting member 10 may be configured as follows, see fig. 1:

the number of the holding portions 15 is plural, the plural holding portions 15 are arranged at the same side of the main body plate 13 at intervals, and the main body plate 13 and each holding portion 15 form a holding groove 11 for fixing the key 30 and the circuit board assembly 500. With such arrangement, the structures of the reinforcing connecting piece 10 for fixing the key 30 and the circuit board assembly 500 are increased, the clamping area of the clamping groove 11 is increased, and the fixing effect of the key 30 and the circuit board assembly 500 is further improved. And, in order to ensure that the part of the key 30 abutting against the circuit board assembly 500 can be completely inserted into the retaining groove 11, the ratio of the depth of the retaining groove 11 to the height of the part of the key 30 abutting against the circuit board assembly 500 is at least 2: 1; at this time, the difference between the depth of the retaining groove 11 and the height of the portion of the key 30 abutting the circuit board assembly 500 is enough to ensure that the portion of the key 30 abutting the circuit board assembly 500 can be completely inserted into the retaining groove 11, thereby ensuring that the installation effect of the key 30 and the circuit board assembly 500 is good. Of course, the ratio of the depth of the holding groove to the height of the portion of the key 30 abutting against the circuit board assembly 500 may be 2.5:1, 3:1, 3.5:1, 4:1, and the mounting effect can be ensured.

Referring to fig. 17 to 19, the reinforcing connecting member 10 may be further configured as follows:

the holding portion 15 is disposed at an outer edge of the main body plate 13 and is integrated with the main body plate 13.

The provision of the catch 15 at the outer edge of the main body plate 13 makes it possible to make the reinforcing connecting member 10 on the side away from the catch groove 11 have no other structure, thereby reducing the occupied space of the reinforcing connecting member 10. In addition, the clamping part 15 and the main body plate 13 are integrally formed, so that on one hand, installation errors caused by assembly of the clamping part and the main body plate can be avoided, the yield is improved, on the other hand, the forming step and the machining process of the reinforcing connecting piece 10 are simplified, the production efficiency of the reinforcing connecting piece 10 is improved, and the stability of the reinforcing connecting piece 10 to the installation key 30 and the circuit board assembly 500 is ensured.

Further, in order to improve the clamping reliability of the clamping groove 11 and ensure the installation reliability and stability of the key 30 and the circuit board assembly 500, the clamping groove 11 may be configured as follows:

the inner wall surface of the clamping groove is also convexly provided with an anti-slip part, and when at least part of the key 30 and at least the circuit board assembly 500 are arranged in the clamping groove 11, the anti-slip part is abutted against the key 30 and the circuit board assembly 500. The anti-slip part can effectively improve the surface roughness of the clamping groove 11, and when the key 30 and the circuit board assembly 500 are installed in the clamping groove 11, the fixing effect of the clamping groove 11 on the clamping groove is improved. Specifically, the anti-slip portion is an anti-slip bump, and when the key 30 is mounted on the circuit board assembly 500, the anti-slip bump abuts against the circuit board assembly 500 and the key 30. The anti-slip bumps are arranged to increase the friction force between the circuit board assembly 500 and the key 30 and the clamping groove 11, so that the fixing effect of the circuit board assembly 500 and the key 30 is improved. And, the inner wall surface of the holding groove 11 may be provided with anti-slip corrugations, as long as the fixing effect of the circuit board assembly 500 and the key 30 can be improved.

The utility model discloses still provide a key structure 100, this key structure 100 includes button 30 and reinforcement connecting piece 10, and the concrete structure of this reinforcement connecting piece 10 refers to above-mentioned embodiment, because this key structure 100 has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.

Referring to fig. 9 to 16, the keys 30 may be specifically provided in the following forms:

the circuit board assembly 500 includes a circuit board body 510 and a push switch 530 disposed on the circuit board body 510; when the key 30 is connected to the circuit board assembly 500, one side of the key button 33 departing from the key cap 31 abuts against the circuit board body 510, the key contact 35 abuts against the push switch 530, one of the two opposite side walls of the holding groove 11 is disposed on one side of the circuit board body 510 departing from the key 30, and the other of the two opposite side walls of the holding groove 11 is disposed on one side of the key button 33 departing from the circuit board body 510. The key contact 35 abuts against the push switch 530 of the circuit board assembly 500, the key button 33 abuts against the circuit board assembly 500 (when the relief opening 40 is provided and the key 30 is in the non-pressed state, the key button is only abutted against the groove side wall of the retaining groove 11), and extends into the retaining groove 11, and the groove wall of the retaining groove 11 holds the key button 33 and at least part of the circuit board assembly 500.

Specifically, the circuit board body 510 may be a flexible circuit board, and the contact surface of the push switch 530, which is used for contacting the key contact 35, should be consistent with the pressing surface of the key contact 35, so as to improve the pressing stability of the two.

The key button 33 is provided to facilitate the positioning of the key contact 35 and the push switch 530, and to facilitate the clamping of the key button 33 and the circuit board body 510 by the clamping groove 11, thereby facilitating the mutual fixing of the key 30 and the circuit board assembly 500. It is understood that the button 33 should be a structure having a fastening position, which is fastened to abut against the side wall of the retaining slot 11 when the button 33 is disposed in the retaining slot 11, and in one embodiment, the button 33 may be "U" shaped and "V" shaped, and the fastening position is the inner side of the "U" shaped and "V" shaped.

Further, the key contacts 35 are generally made of thermoplastic polyurethane elastomer rubber (TPU), which has lower hardness than the key caps 31, so that the problems of failure of the key 530 and failure of the key 30 due to direct contact between the key caps 31 and the key 530 can be avoided, the protection of the key 530 is realized, the service life of the key 530 is prolonged, and the function durability of the key 30 is ensured. The key contact 35 and the key button 33 are protruded from the same side of the key cap 31, thereby facilitating to save the occupied space of the key 30 and facilitating to connect the key 30 with the circuit board assembly 500.

Referring to fig. 12 to 16, the button 33 may be provided in the following form:

the button 33 comprises a connecting arm 331 and a holding arm 333, one end of the connecting arm 331 is connected with the key cap 31, the holding arm 333 is connected with one end of the connecting arm 331, which is away from the key cap 31, in a bent manner and is located in the holding groove 11, and the holding section 153 of the holding part 15 is abutted to the connecting part of the holding arm 333 and the connecting arm 331.

Specifically, the key button 33 is substantially "L" shaped, a vertical section thereof is set as a connecting arm 331, a horizontal section thereof is set as a holding arm 333, when the key 30 and the circuit board assembly 500 are installed, one side of the holding arm 333 away from the connecting arm 331 abuts against the circuit board assembly 500, the holding arm 333 and the circuit board assembly 500 are both arranged in the holding groove 11, and the holding arm 333 faces one side of the key cap 31 and abuts against a groove side wall of the holding groove 11, so as to ensure the fixation of the key button 33 and the circuit board assembly 500, and further ensure the fixation of the key 30 and the circuit board assembly 500. And, the holding section 153 of the holding part 15 is abutted against the joint of the holding arm 333 and the connecting arm 331, so that the movement of the key 30 can be further limited, and the fixing effect of the key 30 and the circuit board assembly 500 is improved.

In one embodiment, the number of the connecting arms 331 may be two, two of the connecting arms 331 are connected to the key cap 31, and the catching arm 333 connects the ends of the two connecting arms 331 away from the key cap 31. At this time, the push button 33 is arranged in a substantially Contraband shape, the connecting arm 331 has an upper lateral portion and a lower lateral portion in a Contraband shape, and the retaining arm 333 has a middle longitudinal portion in a Contraband shape. With such an arrangement, it can be ensured that both ends of the retaining arm 333 are fixed by the connecting arm 331, so as to improve the structural stability of the button 33, and further ensure the fixation of the button 30 and the circuit board assembly 500.

Referring to fig. 1, 2, 15, and 16, the key 30 may be further configured as follows:

the key cap 31 is arranged in a long strip shape, the number of the key contacts 35 is at least two, the at least two key contacts 35 are arranged on the same side of the key cap 31 along the length direction of the key cap 31 at intervals, and the key button 33 is arranged between the at least two key contacts 35.

In the present embodiment, the description is mainly given for the side key of the mobile terminal 1000.

It can be understood that the key cap 31 with a long strip shape can be further provided with a plurality of key contacts 35, correspondingly, the circuit board body 510 of the circuit board assembly 500 is further provided with a plurality of switches 30 corresponding to the key contacts 35, so that the key cap 31 has a plurality of control functions, and the functionality of the key cap 31 is improved. And, when setting up a plurality of key contacts 35, locate the button 33 between two key contacts 35 to guarantee to fix the middle part of button 30, improve the fixed effect of rectangular shape button 30 and circuit board assembly 500.

Referring to fig. 1, 15, and 16, the button 33 may be further configured as follows:

the number of the key buttons 33 is two, the two key buttons 33 are both arranged between the two key contacts 35, and the holding arm 333 of each key button 33 extends from the connecting arm 331 toward the other key button 33;

alternatively, the holding arm 333 of the key button 33 extends from the connecting arm 331 toward a direction away from the other key button 33.

The two key buttons 33 can increase the contact area of the key 30 with the circuit board assembly 500 and increase the contact area with the holding groove 11, thereby further improving the fixing effect of the key 30 and the circuit board assembly 500. It will be understood that when the number of the retaining part 15 and the retaining groove 11 is one, a plurality of the buttons 33 can be received in one of the retaining grooves 11, thereby securing the buttons 30 and the circuit board assembly 500. When the number of the holding parts 15 and the holding grooves 11 is plural, each holding groove 11 accommodates one button 33, so that the two are installed in one-to-one correspondence, thereby improving the equipment efficiency. In one embodiment, the retaining arm 333 of the key button 33 extends from the connecting arm 331 toward the other key button 33, and the retaining section 153 of the reinforcing connecting member 10 extends from the side surface of the key button 33 (radial direction of the extending direction of the retaining arm 333) into the space between the retaining arm 333 and the key cap 31, so as to retain the retaining arm 333 in the retaining groove 11. Thus, when the length of the holding section 153 is greater than the width of the holding arm 333, the holding section 153 can extend out of the holding arm 333, and the holding section 153 can be well abutted against the connection position between the holding arm 333 and the connecting arm 331, thereby further ensuring the installation stability of the key 30 and the circuit board assembly 500. Similarly, the holding arm 333 of the button 33 extends from the connecting arm 331 toward a direction away from the other button 33, which is not described herein.

The utility model discloses still provide a mobile terminal 1000, this mobile terminal 1000 includes casing assembly 700 and button structure 100, and the concrete structure of this button structure 100 refers to above-mentioned embodiment, because this mobile terminal 1000 has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.

Referring to fig. 1 to 8, in the embodiment of the present invention, the housing assembly 700 includes a middle frame 710, the middle frame 710 is formed with a first mounting groove 7131, the circuit board assembly 500 and the reinforcing connector 10 are both mounted in the first mounting groove 7131, and the push switch 530 of the circuit board assembly 500 is disposed toward the side plate 713;

the middle frame 710 further has a mounting hole 7133 communicating with the first mounting groove 7131, the key cap 31 is received in the mounting hole 7133, and the key button 33 and the key contact 35 both extend out of the inner side of the mounting hole 7133.

The middle frame 710 includes a bottom plate 711 and a side plate 713 coupled to the bottom plate 711, the first mounting groove 7131 is disposed on the side plate 713, and in particular, a surface of the side plate 713 facing away from the bottom plate 711 is recessed to form the first mounting groove 7131, so that the circuit board assembly 500 and the reinforcing connector 10 can be mounted in the first mounting groove 7131, thereby facilitating the fixation of the two. The bottom plate 711 and the side plate 713 further form a second mounting groove 715 for mounting a battery, the mounting hole 7133 is disposed at a side of the side plate 713 away from the second mounting groove 715, when the key 30 is mounted with the circuit board assembly 500 through the reinforcing connector 10, the key contact 35 and the key button 33 on the key 30 pass through the mounting hole 7133, the key contact 35 can touch the push switch 530 on the circuit board assembly 500 and can also be connected with the push switch 530, since at least a portion of the key cap 31 is exposed at an outer side of the mounting hole 7133, a user operates the key cap 31 to drive the key contact 35 to perform related operations such as pressing or toggling on the push switch 530, so as to implement the basic functions of the key 30. In one embodiment, the distance between the opposing sidewalls of the first mounting groove 7131 decreases from the notch to the bottom of the groove. So set up, increase the notch area of first mounting groove 7131, the installation of circuit board subassembly 500 of being convenient for, and, make the area of tank bottom less, thereby when the reinforcing connecting piece 10 card was held in first mounting groove 7131, can be held by the groove lateral wall of first mounting groove 7131 lower part, improved the fixed effect of reinforcing connecting piece 10 with first mounting groove 7131, and then improved button 30 and circuit board subassembly 500's fixed effect.

Referring to fig. 2, 4, 6, and 8, the mobile terminal 1000 may be further configured as follows:

the mobile terminal 1000 further includes a fixing member 800, wherein the fixing member 800 is attached to a side of the main body plate 13 away from the circuit board body 510, so that the reinforcing connecting member 10 is fixedly connected to a groove wall of the first mounting groove 7131; the fixing member 800 is disposed such that the reinforcing connecting member 10 can be directly and fixedly connected to the first mounting groove 7131 after fixing the key 30 and the circuit board assembly 500 and being disposed in the first mounting groove 7131, thereby ensuring the fixed connection between the key structure 100 and the housing assembly 700. Specifically, this mounting 800 can be the flexure strip, settle in first mounting groove 7131 back at reinforcement connecting piece 10, and this flexure strip can with the groove lateral wall interference butt of first mounting groove 7131 to in spacing and the first mounting groove 7131 with reinforcement connecting piece 10, guarantee that key structure 100's installation is stable. Alternatively, the fixing element 800 may also be an adhesive element, and after the reinforcing connecting element 10 is disposed in the first mounting groove 7131, the outer side surface of the reinforcing connecting element 10 and the groove side wall of the first mounting groove 7131 are bonded and fixed by the adhesive element, so as to ensure the stable mounting of the key structure 100. Specifically, the adhesive member may be a double-sided tape or a glue.

In an embodiment, the notch of the first mounting groove 7131 is further provided with an adhesive member 900, the mobile terminal 1000 further includes a protective cover 600, and the protective cover 600 covers the first mounting groove 7131 and the second mounting groove 715 and is attached to a side of the adhesive member 900 away from the middle frame 710. The protective cover 600 is disposed to protect the key structure 100 disposed in the first mounting groove 7131, so as to prevent foreign objects from entering the key structure 100, thereby improving the working stability of the key structure 100. The setting is located the bonding piece 900 of first mounting groove 7131 notch, can guarantee to protect this firm first mounting groove 7131 that covers, improves the protection effect to can not occupy great installation space, facilitate the use. It can be understood that, the area of the protective cover 600 facing the first mounting groove 7131 may further be provided with a supporting member, when the protective cover 600 is mounted on the middle frame 710, the supporting member supports against the outer surface of the reinforcing connecting member 10, so as to improve the position limitation of the reinforcing connecting member 10, and further improve the fixing effect of the key 30 and the circuit board assembly 500.

The utility model discloses among the technical scheme, mobile terminal 1000 button structure 100's assembly method includes following step:

the circuit board assembly 500 is seated in the first mounting groove 7131 with the push switch 530 facing the mounting hole 7133;

the key 30 is arranged in the mounting hole 7133 in a penetrating way, the key contact 35 is abutted against the press switch 530, and the key button 33 is abutted against the circuit board body 510 of the circuit board assembly 500;

the notch of the reinforcing connecting piece 10 is opposite to the notch of the first mounting groove 7131, and the reinforcing connecting piece 10 is inserted, so that one of the two opposite side walls of the clamping groove 11 of the reinforcing connecting piece 10 is arranged at one side of the circuit board body 510 departing from the key 30, and the other one of the two opposite side walls of the clamping groove 11 is arranged at one side of the key button 33 departing from the circuit board body 510.

The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. A reinforcing connecting piece is used for installing a key and a circuit board assembly and is characterized in that a clamping groove is formed in the reinforcing connecting piece, the key comprises a key cap, a key buckle and a key contact, the key buckle and the key contact are arranged on the key cap in a protruding mode and are arranged at intervals, the key contact is connected to the circuit board assembly, and the key buckle and at least part of the circuit board assembly are clamped in the clamping groove.

2. The reinforcing connector as claimed in claim 1, wherein the reinforcing connector comprises a main body plate and a retaining portion, the retaining portion comprises a connecting section and a retaining section, the connecting section is connected to the main body plate, the retaining section is connected to a side of the connecting section opposite to the main body plate, the connecting section, the retaining section and the main body plate together enclose the retaining groove, the key button is retained by the retaining section in an abutting manner, and at least a portion of the circuit board assembly is retained by the main body plate in the retaining groove.

3. The reinforcing connector as claimed in claim 2, wherein the number of the retaining portions is plural, a plurality of the retaining portions are spaced apart from each other on the same side of the main body plate, and the main body plate and each of the retaining portions form a retaining groove for fixing the key and the circuit board assembly.

4. The reinforcing connector as defined in claim 2, wherein said catch transitions in a circular arc with respect to said main body panel.

5. The reinforcing connector as claimed in any one of claims 2 to 4, wherein said retaining portion is provided at an outer edge of said main body plate and is integrally formed with said main body plate.

6. The reinforcing connector as claimed in claim 5, wherein an inner wall surface of the engaging groove is further provided with a non-slip portion, and when at least a portion of the key and at least the circuit board assembly are disposed in the engaging groove, the non-slip portion abuts against the key and the circuit board assembly.

7. A key construction comprising a key and a reinforcing connector as claimed in any one of claims 1 to 6.

8. The key structure of claim 7, wherein the key button comprises a connecting arm and a holding arm, one end of the connecting arm is connected to the key cap, the holding arm is connected to an end of the connecting arm away from the key cap and is located in the holding groove, and the holding section of the holding portion abuts against a joint of the holding arm and the connecting arm.

9. The key structure of claim 8, wherein the key caps are arranged in a strip shape, the number of the key contacts is at least two, at least two of the key contacts are arranged on the same side of the key caps at intervals along the length direction of the key caps, and the key buttons are arranged between at least two of the key contacts.

10. The key structure of claim 9, wherein the number of said key buttons is two, both said key buttons being disposed between said key contacts, said retaining arm extending from said connecting arm in a direction toward the other said key button;

or the clamping arm extends from the connecting arm to the direction departing from the other button.

11. A mobile terminal, characterized in that it comprises a housing assembly and a key structure according to any one of claims 7 to 10.

12. The mobile terminal of claim 11, wherein the housing assembly includes a middle frame formed with a first mounting groove, the circuit board assembly and the reinforcement connection member are mounted in the first mounting groove, and the push switch of the circuit board assembly is disposed toward the side plate;

the middle frame is further provided with a mounting hole communicated with the first mounting groove, the key cap is accommodated in the mounting hole, and the key button and the key contact extend out of the inner side of the mounting hole.

13. The mobile terminal of claim 12, further comprising a fixing member attached to a side of the main board facing away from the circuit board body, so that the reinforcing connecting member is fixedly connected to a wall of the first mounting groove;

and/or, the center still is formed with the second mounting groove that is used for installing the battery, the notch of first mounting groove still is equipped with bonding piece, mobile terminal still includes the visor, the visor shroud first mounting groove with the second mounting groove, and laminate in bonding piece deviates from one side of center.