CN2550977Y - Mobile phone with replaceable button module - Google Patents

Abstract

A mobile phone with replaceable key module includes a first printed circuit board, an electrical connector and a key module. The electric connector is arranged on the first printed circuit board; the key module comprises a second printed circuit board and a plurality of keys arranged on the second printed circuit board, wherein the second printed circuit board of the key module is connected with the electric connector in a pluggable mode, so that the first printed circuit board and the second printed circuit board are electrically connected through the electric connector, and the aim of replacing the key module is fulfilled.

Description

Mobile phone with replaceable button module

Technical field

The utility model relates to a mobile phone, in particular to a mobile phone with a replaceable key module.

Background technique

With the popularization of mobile communication systems, consumers have higher and higher requirements for mobile phones. In addition to requiring mobile phones to have good communication quality, simple operation interface, light and small, and power saving, they also require various Novel shape. Please refer to FIG. 1 . FIG. 1 is a perspective view of an existing mobile phone. A general mobile phone 10 has a liquid crystal display module and a plurality of buttons 12, and is covered with a shell 11 to protect the internal electronic components. In order to make the mobile phone 10 more attractive, the most common way for mobile phone manufacturers is to design the mobile phone 10 as a replaceable casing 11, and the user can replace the casing 11 of the mobile phone 10 through simple steps to achieve transformation. the goal of. However, the above method can only simply change the color of the casing 11, but cannot make the shape of the mobile phone 10 have a greater change.

As shown in FIG. 1 , through holes are formed on the housing 11 of the mobile phone 10 corresponding to the positions of the buttons 12 , so that the buttons 12 are exposed for users to press. A corresponding key circuit board is arranged under the key 12 to transmit the input signal of the key 12 to an internal main circuit board (not shown) for processing, and then perform corresponding actions such as displaying text or receiving or sending signals. But the button circuit board of general mobile phone 10 all is directly built in the internal main circuit board, so can not replace arbitrarily.

Contents of utility model

The purpose of this utility model is to change the connection mode between the mobile phone button circuit board and the main circuit board into a modularized phone button module and the main circuit board connection method, so that users can replace the buttons of the mobile phone through simple steps Modules enable mobile phones to have more diverse shape changes to meet the needs of consumers.

To achieve the above purpose, the utility model provides a mobile phone with a replaceable key module, which includes a first printed circuit board, an electrical connector and a key module. The electrical connector is arranged on the first printed circuit board; the button module includes a second printed circuit board and a plurality of buttons arranged on the second printed circuit board, wherein the second printed circuit board of the button module is pluggable Connected to the electrical connector, so that the first printed circuit board and the second printed circuit board are electrically connected through the electrical connector, so as to achieve the purpose of replacing the key module.

In a preferred embodiment, the electrical connector of the mobile phone is a plurality of metal springs, and the first printed circuit board is electrically connected to the metal contacts of the button module by using the metal springs.

In another preferred embodiment, the electrical connector of the mobile phone is a flexible printed circuit board, and the first printed circuit board is electrically connected with the metal contacts of the button module by using the flexible printed circuit board.

In a preferred embodiment, the mobile phone further includes a frame on which the first printed circuit board is arranged, wherein the frame has a slide rail, and the button module is movably arranged on the frame along the slide rail.

In a preferred embodiment, the mobile phone further includes a shell, which is detachably mounted on the frame, and the shell has a plurality of through holes corresponding to the positions of the keys.

In a preferred embodiment, the frame also has an engaging part, which fixes the key module at a predetermined position in the slide rail, and when the key module is not fixed at the predetermined position in the slide rail, the engaging part protrudes , so that the shell cannot be mounted on the frame.

Description of drawings

Fig. 1 is the perspective view of existing mobile phone;

Fig. 2 is an exploded view of the utility model replaceable button module mobile phone;

Fig. 3A is another exploded view of the mobile phone of the present invention;

Fig. 3B is a bottom view of the button module in Fig. 3A;

FIG. 4A is a perspective view of a mobile phone according to another embodiment of the present invention;

Figure 4B is an enlarged view of the electrical connector in Figure 4A;

Fig. 5 is a partial sectional view of the housing in the embodiment of the present invention.

Detailed ways

Please refer to FIG. 2 , which is an exploded view of the mobile phone with a replaceable button module of the present invention. For the sake of simplification, FIG. 2 omits electronic components such as batteries and radio frequency modules. The mobile phone 20 in this embodiment has an upper and lower frame 23, 21, upper and lower shells 25, 26, a main circuit board 22 and a replaceable button module 24, and each part is described as follows:

The material of the lower frame 21 is mainly metal or plastic, and is used to install the main circuit board 22 or a battery (not shown), and fix the upper frame 23 and the upper and lower casings 25 , 26 .

The main circuit board 22 is fixed on the lower frame 21 by engaging or screwing, and the main circuit board 22 is provided with a liquid crystal display module 221, a plurality of metal shrapnel 223 and other electronic components (not shown), such as: radio frequency module and micro processor etc., and in order to block electromagnetic waves generated by each electronic component, a metal cover 222 is usually arranged outside each electronic component on the main circuit board 22 to prevent electromagnetic waves from escaping.

The upper frame 23 is also installed on the lower frame 21 in a snap-fit or screw-fixed manner, which can make the mobile phone 20 have a stronger structure. protection of. There is a slide rail 231 on the upper frame 23 for installing the button module 24, so that the button module 24 can be arranged on the upper frame 23 in a pluggable manner along the slide rail 231; at the same time, at the end of the slide rail 231 of the upper frame 23 It also has an engaging portion 232 for fixing the button module 24 at a predetermined position in the slide rail 231 .

The button module 24 has a button circuit board 242 on which a plurality of buttons 241 are arranged. Electrically connected, the signal of the button 241 will be transmitted to the main circuit board 22, and after being processed by the microprocessor (not shown) on the main circuit board 22, corresponding actions will be taken, such as displaying text on the liquid crystal display module 221, or controlling the radio frequency The module receives or sends signals, etc.

In order to meet consumers' demand for replaceable shells, the upper and lower shells 25, 26 are mounted on the lower frame 21 in a detachable manner, which can protect the electronic components inside the mobile phone 20, wherein the upper shell 25 has a position corresponding to each button. The plurality of through holes 251 of the key module 241 make each key 241 of the key module 24 exposed.

Please refer to FIG. 3A and FIG. 3B , which are another exploded view of the mobile phone of the present invention, and FIG. 3B is a bottom view of the button module in FIG. 3A . When the button module 24 of the mobile phone of the present invention is inserted into the slide rail 231 and fixed at a predetermined position by the engaging part 232, the metal shrapnel 223 of the main circuit board 22 contacts the metal contact point 243 on the back side of the button circuit board 242 to make the button The signal of the module 24 can be transmitted to the main circuit board 22 by the metal contact 243 on the key circuit board 242 through the metal dome 223 . From the above description, it can be known that the above modular structure allows the user to replace the key module 24 with a simple plugging action without using any tools, so as to achieve the purpose of changing the keyboard style and casing.

In addition, the connection mode between the button module 24 of the present invention and the main circuit board 22 can also be connected as shown in FIG. 4A . FIG. 4A is a perspective view of a mobile phone according to another embodiment of the present invention, and FIG. 4B is an enlarged view of the electrical connector in FIG. 4A . As shown in the figure, an electrical connector 333 is provided on the main circuit board 32, and a plurality of metal contacts 343 are provided on the side of the key circuit board 342 of the key module 34, wherein the electrical connector 333 is a flexible printed circuit board, one end of which is welded on the main circuit board 32, and the other end is electrically connected to the metal contact 343 on the button circuit board 342, so that the signal of the button module 34 can be passed through the metal contact 343 of the button circuit board 342 through the electrical connector 333 (flexible printed circuit board) to the main circuit board 32, so that the user can also replace the key module 34 with a simple plugging action to achieve the purpose of changing the style of the keyboard and the shell.

Please refer to FIG. 2 and FIG. 5 . FIG. 5 is a partial cross-sectional view of the housing in the embodiment of the present invention. Because the mobile phone of the present utility model can replace the key module 24 in a replaceable manner, when the key module 24 is installed, the metal contact 243 and the metal shrapnel 223 may have poor contact due to the fact that the key circuit board 242 is not completely installed to the position. Therefore, the engaging portion 232 on the upper frame 23 also has a pair of positive locking functions. When the user does not push the button module 24 to a fixed position, the engaging portion 232 will be pushed by the button circuit board 242 to protrude. The upper shell 25 cannot be engaged with the lower frame 26 , so that it can be ensured that when the key module 24 is replaced, no poor contact will occur.

As shown in Figure 2, in order to properly protect the main circuit board 22 when the key module 24 is replaced, the mobile phone of the aforementioned embodiment uses the upper and lower frames 23, 21 to snap together or screw the mode as its frame structure. The module 24 is inserted into the slide rail 231 of the upper frame 23 , so that the metal contact 243 of the key circuit board 242 is electrically connected with the metal dome 223 . However, this slide rail 231 can also be simply arranged on the side of the lower frame 21, extending from the side of the plate of the lower frame 21 to form a slide rail or another engaging piece to fix the button circuit board 24, so that Omitting the upper frame 23 can achieve the purpose of replacing the button module 24 at the same time.

The mobile phone of the present utility model can be electrically connected with the metal contacts 243, 343 of the button circuit boards 242, 342 through the metal shrapnel 223 (Fig. 2) or the flexible printed circuit board 333 (Fig. 4A) arranged on the main circuit board 22, so The user can replace the button modules 24, 34 of the mobile phone through a simple swapping action, and then cooperate with the corresponding upper shell 25, so that the mobile phone can have more diverse shape changes to meet the needs of consumers. need.

In addition, since the button modules 24 and 34 of the mobile phone of the present invention are replaceable, when the button modules 24 and 34 are damaged, it is only necessary to replace the damaged button modules 24 and 34 without replacing the entire main module. circuit boards 22, 32, thus saving time and cost for their maintenance.

Claims (8)

1. A mobile phone with a replaceable button module, characterized in that it includes: a first printed circuit board; an electrical connector, arranged on the first printed circuit board; and a button module, including a second A printed circuit board and a plurality of buttons arranged on the second printed circuit board, wherein the second printed circuit board of the button module is connected to the electrical connector in a pluggable manner, the first printed circuit board and the The second printed circuit board is electrically connected through the electrical connector. 2. The mobile phone with a replaceable key module according to claim 1, wherein the electrical connector is a plurality of metal shrapnels. 3. The mobile phone with a replaceable key module as claimed in claim 1, wherein the electrical connector is a flexible printed circuit board. 4. The mobile phone with replaceable key modules as claimed in claim 1, further comprising a frame, the first printed circuit board is disposed on the frame. 5 . The mobile phone with replaceable key modules according to claim 4 , wherein the frame has a slide rail, and the key module is movably disposed on the frame along the slide rail. 6. The mobile phone with replaceable button modules as claimed in claim 5, further comprising: a shell, which is mounted on the frame in a detachable manner, and the shell has the buttons corresponding to the button modules. Multiple through holes for buttons. 7. The mobile phone with a replaceable key module as claimed in claim 5, wherein the frame further has an engaging portion, and the key module is fixed at a predetermined position in the slide rail. 8. The mobile phone with replaceable key module as claimed in claim 7, characterized in that, when the key module is not fixed at the predetermined position in the slide rail, the key module pushes the engaging part, so that The engaging portion is in a protruding state, so that the shell cannot be installed on the frame.

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