Mobile terminal and its expansion module installation structure

Abstract

The present invention relates to a mobile terminal and an expansion module installation structure thereof, wherein the expansion module installation structure comprises a back cover; the back cover is provided with at least two installation positions for detachable installation of different expansion modules; each installation position is provided with a connection seat, and each connection seat is connected to a host respectively. Each expansion module is provided with a connection joint correspondingly connected to each connection seat, and after the expansion modules on different installation positions are interchanged, they can all be connected to the connection seat on the corresponding installation position. The connection seat and the connection joint are respectively provided with corresponding matching spring pieces and contacts, and / or, the connection seat and the connection joint are respectively provided with corresponding matching contacts and spring pieces. An installation structure for the expansion module to be installed is formed on the back cover, which reduces the occupied space after the expansion module is installed on the mobile terminal, and eliminates pre-installed components such as a back clip. Each connection seat on the installation position and the connection joint on the expansion module all use spring pieces and contacts of the same standard, and after the expansion modules are interchanged, they can all be compatible, thereby improving versatility.

Description

Technical Field

[0001] The present invention relates to the field of electronic communications, and more specifically, to a mobile terminal and an expansion module installation structure thereof. Background Art

[0002] In the related art, the expansion module of the mobile terminal usually needs to be installed on a special back clip, and then the back clip is mounted on the back of the mobile terminal to connect the expansion module to the mobile terminal.

[0003] After the back clip structure is installed on the mobile terminal, the appearance of the mobile terminal will be made larger, and more space will be occupied. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an improved mobile terminal and an expansion module installation structure thereof.

[0005] The technical solution adopted by the present invention to solve the technical problem is: constructing an expansion module installation structure of a mobile terminal, including a back cover;

[0006] The back cover is provided with at least two installation positions for detachable installation of different expansion modules; each installation position is provided with a connecting seat, and each connecting seat is connected to the host respectively;

[0007] Each of the expansion modules is provided with a connection connector corresponding to each of the connection sockets, and after the expansion modules at different installation positions are interchanged, they can all be connected to the connection sockets at the corresponding installation positions;

[0008] The connection seat and the connection joint are respectively provided with corresponding matching spring pieces and contacts, and / or the connection seat and the connection joint are respectively provided with corresponding matching contacts and spring pieces.

[0009] Preferably, the contact is a gold finger.

[0010] Preferably, the mobile terminal further comprises a cover plate which covers the installation position, and the cover plate is detachably installed on the back cover.

[0011] Preferably, the mounting positions on the back cover are arranged adjacent to each other and side by side; or, the mounting positions on the back cover are arranged at intervals.

[0012] Preferably, the installation position is provided with a slot for the expansion module to be snapped and fixed.

[0013] Preferably, a first engaging portion and a second engaging portion are respectively provided on both ends of the expansion module, and a third engaging portion and a fourth engaging portion for engaging with the first engaging portion and the second engaging portion respectively are provided in the engaging slot.

[0014] Preferably, one of the first engaging portion and the second engaging portion is a protrusion, and the other is a groove.

[0015] Preferably, the connecting joint is located close to an end position corresponding to the first clamping portion or the second clamping portion.

[0016] Preferably, the back cover comprises a cover body and a mounting plate mounted on the cover body, and the card slot is formed on the mounting plate;

[0017] The mounting plate can be arranged on the cover body so as to switch between a first state and a second state.

[0018] When the mounting plate is in the first state, the card slot faces the outside of the back cover.

[0019] When the mounting plate is in the second state, the card slot faces the inner side of the back cover;

[0020] The mounting plate can be arranged on the cover body in an inverted manner so that the card slot faces the outside of the back cover or the inside of the back cover;

[0021] The mounting plate is hinged to the cover body so as to be able to be turned inside out.

[0022] The present invention also constructs a mobile terminal, comprising the expansion module installation structure.

[0023] The implementation of the mobile terminal and the expansion module installation structure thereof of the present invention has the following beneficial effects: a mounting structure for installing the expansion module is formed on the back cover of the mobile terminal of the present invention, and the expansion module can be directly installed on the back cover, which can reduce the occupied space after the expansion module is installed on the mobile terminal, making the appearance of the mobile terminal more delicate, and also eliminating pre-installed components such as a back clip, thereby reducing costs. Furthermore, each connection seat on the installation position and the connection connector on the expansion module all use spring clips and contacts of the same standard. After the expansion modules on different installation positions are interchanged, they can all be connected to the connection seats on the corresponding installation positions, so that the connections of each expansion module are compatible, thereby improving versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0025] Figure 1 is a schematic structural diagram of a mobile terminal in an embodiment of the present invention when an expansion module is installed on the back cover;

[0026] Figure 2 yes Figure 1 A schematic diagram of the structure when the mounting plate in is converted to the first state;

[0027] Figure 3 yes Figure 1 A three-dimensional schematic diagram of an expansion module in FIG.

[0028] Figure 4 yes Figure 1 A three-dimensional schematic diagram of the expansion module from another angle;

[0029] Figure 5 yes Figure 3 A cross-sectional schematic diagram of an expansion module in FIG.

[0030] Figure 6 yes Figure 2 A schematic diagram of the structure when the mounting plate in is converted to the second state;

[0031] Figure 7 It is a schematic diagram of the structure when the cover plate on the mounting position is separated from the mounting position in other embodiments. DETAILED DESCRIPTION

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described in detail with reference to the accompanying drawings.

[0033] like Figure 1 As shown, a mobile terminal in a preferred embodiment of the present invention includes a host 1 and a back cover 2. The mobile terminal may be an electronic product such as a smart phone or a tablet.

[0034] Combination Figures 1 to 5 As shown, the back cover 2 is provided with a plurality of installation positions 21 for detachably installing different expansion modules 3 , and the expansion modules 3 are provided with connection connectors 31 connected to the host 1 .

[0035] Different expansion modules 3 include functional modules such as mobile power supply and mobile storage, and the expansion module 3 can be disassembled and assembled, so that different functional modules can be installed in the expansion module 3 according to the needs. After the expansion module 3 is installed in the installation position 21, the connection connector 31 can realize functions such as power transmission and data transmission with the host 1.

[0036] The connection base 212 and the connection connector 31 are respectively provided with corresponding springs and contacts. After the expansion module 3 is installed in the installation position 21, the springs and contacts are in contact and connected, so that the functions of the expansion module 3 are enabled. Preferably, the contacts are gold fingers, which are conducive to conduction. In other embodiments, the contacts can also be conductive contacts such as metal sheets.

[0037] In other embodiments, corresponding contacts and springs may be respectively provided on the connection base 212 and the connection connector 31, which are mutually conductive after the expansion module is installed. Alternatively, corresponding springs and contacts may be provided on both the connection base 212 and the connection connector 31, which are mutually conductive after the expansion module is installed.

[0038] Each mounting position 21 is provided with a connection seat 212, and each connection seat 212 is connected to the host 1 respectively, so that the expansion module 3 is connected to the host 1. Preferably, the connection seat 212 on each mounting position 21 is an interface using the same standardized connector. Each expansion module 3 is provided with a connection connector 31 corresponding to each connection seat 212, and each connection seat on the mounting position and the connection connector on the expansion module use the same standard spring clip and contact. After the expansion modules 3 on different mounting positions 21 are interchanged, they can all be connected to the connection seat 212 on the corresponding mounting position 21. In other embodiments, the connection seat 212 can also be set on the host 1, which can ensure that the expansion module 3 can be connected to the host 1 after being installed in the mounting position.

[0039] The number of the installation positions 21 may be two or more. When there are more than one installation position 21 , each installation position 21 is provided with a connection seat 212 , so that different expansion modules 3 can be installed at the same time and connected to the connection seats 212 respectively.

[0040] Preferably, the mounting positions 21 on the back cover 2 are arranged adjacent to each other and side by side. In other embodiments, the mounting positions 21 on the back cover 2 may also be arranged at specific intervals.

[0041] The connection base 212 uses the same standardized connector to achieve standardized installation and connection, and the expansion module 3 can be set in the form of an integer multiple of a basic unit. The basic unit refers to the smallest unit with a specific shape and size set according to the specifications of the existing functional module and the connection connector 31. The smallest unit can accommodate the smallest functional module, the connection connector 31, and the connection circuit between the two. For example, when the universal serial bus interface is selected as the connection connector 31, and the functional module is a sensor for collecting external parameters; the shell size of the smallest unit is designed according to the minimum size of the sensor and the universal serial bus interface.

[0042] In actual production, the required functional module is not necessarily the smallest in size. In this case, the size of the functional module is designed to be an integer multiple of the smallest unit according to user needs, so that multiple expansion modules 3 can be spliced ​​into a whole with regular shape and size.

[0043] It can be understood that the size of the peripheral module is set in the form of integer multiples in order to achieve standardized mechanical and electrical connections. Therefore, under the condition of satisfying the standardized connection of multiple expansion modules 3, the user can set other specifications as needed, for example: the sizes of multiple expansion modules 3 are in a geometric progression or an arithmetic progression.

[0044] An installation structure for installing the expansion module 3 is formed on the back cover 2, and the expansion module 3 can be directly installed on the back cover 2, which can reduce the occupied space after installing the expansion module 3 on the mobile terminal, make the appearance of the mobile terminal more sophisticated, and also save pre-installed components such as back clips, thereby reducing costs.

[0045] In some embodiments, the back cover 2 includes a cover body 22 and a mounting plate 23 mounted on the cover body 22, and the mounting position 21 is formed on the mounting plate 23. The expansion module 3 is mounted on the mounting plate 23 without occupying space. When the expansion module 3 is not installed, the mounting plate 23 is mounted on the cover body 22, so that the appearance of the back cover 2 can be the same as other mobile terminals without the expansion module 3.

[0046] like Figure 6 , Figure 7 As shown, the mobile terminal further includes a cover plate 24 covering the mounting position 21, and the cover plate 24 is detachably mounted on the back cover 2. When the expansion module 3 does not need to be mounted on the mounting plate 23, the cover plate 24 can be mounted on the back cover 2 to prevent the mounting position 21 from affecting the appearance of the mobile terminal.

[0047] For example Figures 2 to 5 As shown, in some embodiments, the installation position 21 is provided with a slot 211 for the expansion module 3 to be fixed and engaged, and the expansion module 3 is fixed to the installation position 21 by means of engagement, which is convenient for assembly and disassembly. In other embodiments, the expansion module 3 can also be fixed to the installation position 21 by other locking members.

[0048] Furthermore, the first and second engaging parts 32 and 33 are respectively provided at both ends of the expansion module 3, and the third and fourth engaging parts for engaging the first and second engaging parts 32 and 33 are respectively provided in the slot 211. During installation, one end can be engaged, and the other end can be pressed into the slot 211 and then engaged.

[0049] Preferably, one of the first engaging portion 32 and the second engaging portion 33 is a protrusion and the other is a groove, which can facilitate first engaging one end and then engaging the other end.

[0050] In some embodiments, the connection connector 31 is located near the end position corresponding to the first locking portion 32 or the second locking portion 33, and the end of the connection connector 31 and the connection seat 212 can be pressed and engaged with each other and can also be engaged to ensure stable mating contact.

[0051] In some embodiments, an antenna is disposed in the card slot 211, so that there is more space for arranging the antenna, thereby providing a better signal for the mobile terminal.

[0052] Combination Figure 1 , Figure 2 up Figure 6As shown, further, the mounting plate 23 can be set on the cover body 22 so as to be switchable between a first state A and a second state B. When the mounting plate 23 is in the first state A, the slot 211 faces the outer side of the back cover 2. When the mounting plate 23 is in the second state B, the slot 211 faces the inner side of the back cover 2.

[0053] When the expansion module 3 needs to be installed on the mobile terminal, the mounting plate 23 is placed in the first state A so that the expansion module 3 can be installed. When the expansion module 3 does not need to be installed on the mobile terminal, the mounting plate 23 is placed in the second state B, with the card slot 211 facing the inner side of the back cover 2, and the appearance of the mobile terminal is the same as that of other terminals without the expansion module 3, so as to avoid affecting the appearance.

[0054] Furthermore, the mounting plate 23 can be arranged on the cover body 22 in an inside-outside flipping manner so that the card slot 211 faces the outside of the back cover 2 or faces the inside of the back cover 2. Preferably, the mounting plate 23 is hinged to the cover body 22 so as to be flipped up and down. In other embodiments, the mounting plate 23 can also be removed from the cover body 22 and then flipped to a corresponding state and mounted on the cover body 22.

[0055] like Figure 7 As shown, in other embodiments, when the state of the mounting plate 23 is immutable, the cover plate 24 is detachably mounted on the back cover 2. When the expansion module 3 does not need to be installed, the cover plate 24 can be mounted on the back cover 2 to prevent the mounting position 21 from affecting the appearance of the mobile terminal.

[0056] It can be understood that the above-mentioned technical features can be used in any combination without limitation.

[0057] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An expansion module installation structure for a mobile terminal, It is characterized in that including a back cover (2); The back cover (2) is provided with at least two installation positions (21) for detachably installing different expansion modules (3); each installation position (21) is provided with a connection seat (212), and each connection seat (212) is connected to the host (1) respectively; Each of the expansion modules (3) is provided with a connection connector (31) corresponding to each of the connection seats (212); after the expansion modules (3) at different installation positions (21) are interchanged, they can all be connected to the connection seats (212) at the corresponding installation positions (21); The connection seat (212) and the connection joint (31) are respectively provided with corresponding matching spring pieces and contacts, and / or the connection seat (212) and the connection joint (31) are respectively provided with corresponding matching contacts and spring pieces; The installation position (21) is provided with a slot (211) for the expansion module (3) to be snapped in and fixed; The back cover (2) comprises a cover body (22) and a mounting plate (23) mounted on the cover body (22), and the card slot (211) is formed on the mounting plate (23); The mounting plate (23) is arranged on the cover body (22) so as to be switchable between a first state (A) and a second state (B). When the mounting plate (23) is in the first state (A), the card slot (211) faces the outside of the back cover (2). When the mounting plate (23) is in the second state (B), the card slot (211) faces the inner side of the back cover (2); The mounting plate (23) can be arranged on the cover body (22) in an inverted manner so that the card slot (211) faces the outside of the back cover (2) or the inside of the back cover (2); The mounting plate (23) is hingedly connected to the cover body (22) so as to be able to be turned inside out.

2. The expansion module installation structure of the mobile terminal according to claim 1, It is characterized in that The contact is a gold finger.

3. The expansion module installation structure of the mobile terminal according to claim 1, It is characterized in that The mobile terminal further comprises a cover plate (24) which is covered on the installation position (21), and the cover plate (24) is detachably mounted on the back cover (2).

4. The expansion module installation structure of the mobile terminal according to claim 1, It is characterized in that The mounting positions (21) on the back cover (2) are arranged adjacent to each other and side by side; or, the mounting positions (21) on the back cover (2) are arranged at intervals.

5. The expansion module installation structure of the mobile terminal according to claim 1, It is characterized in that A first engaging portion (32) and a second engaging portion (33) are respectively provided at both ends of the expansion module (3), and a third engaging portion and a fourth engaging portion are respectively provided in the engaging slot (211) for engaging the first engaging portion (32) and the second engaging portion (33).

6. The expansion module installation structure of the mobile terminal according to claim 5, It is characterized in that One of the first clamping portion (32) and the second clamping portion (33) is a protrusion, and the other is a groove.

7. The expansion module installation structure of the mobile terminal according to claim 5, It is characterized in that The connection joint (31) is located close to an end position corresponding to the first clamping portion (32) or the second clamping portion (33).

8. A mobile terminal, It is characterized in that It comprises the expansion module installation structure according to any one of claims 1 to 7.

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