TWI381789B - Housing of portable electronic device - Google Patents

Description

Portable electronic device case

The invention relates to a portable electronic device casing.

With the continuous updating and development of technology, mobile electronic devices such as mobile phones or personal digital assitants (PDAs) have been widely used in people's daily lives.

Referring to FIG. 1 , a portable electronic device 10 includes a first housing 11 , a second housing 12 , and a hinge 13 . The hinge 13 hinges the first casing 11 and the second casing 12 together.

Referring to FIG. 2 , the second casing 12 includes an upper casing 121 , a button module 122 , a circuit board 123 with a plurality of signal sensing portions 1231 , a lower casing 124 , and a plurality of latching members 125 . The upper casing 121 and the lower casing 124 are coupled by the holding member 125, and the button module 122 and the circuit board 123 are accommodated therein. The button module 122 includes a button carrier 1222 and a button panel 1224. The button carrier plate 1222 is provided with a plurality of button holes 1223 penetrating therethrough. A plurality of buttons 1225 are formed on the keypad 1224. The button 1224 is attached to the button carrier 1222 in such a manner that the button 1225 is received in the button hole 1223.

When the second casing 12 is assembled, the button module 122 is first received in the interior of the upper casing 121; then the circuit board 123 is received in the interior of the upper casing 121, so that the signal sensing portion 1231 and the button 1225 are in one-to-one correspondence. Finally, the lower casing 124 is fitted to the upper casing 121 and integrated by the retaining member 125 to accommodate the button module 122 and the circuit board 123 in the second casing 12.

However, with the trend toward miniaturization of portable electronic devices, the wall thickness of the housing wall 1212 (shown in FIG. 2) of the upper casing 121 is desirably as small as possible. However, the upper housing 121 of the portable electronic device 10 is a hollow housing and is generally injection molded by plastic. Thus, when the thickness of the casing wall 1212 becomes small, the upper casing 121 becomes very thin, that is, the rigidity is insufficient, which causes the upper casing 121 to be distorted, and even causes defects such as the failure to assemble the upper casing 121.

In view of the above situation, it is necessary to provide a portable electronic device casing that is relatively rigid and is not easily deformed.

A portable electronic device casing includes an upper casing, the upper casing includes a button carrier plate and a joint portion, the button carrier plate is embedded in the joint portion, and the joint portion is formed on a periphery of the button carrier plate, The joint portion is made of a plastic material, and the button carrier plate is provided with a plurality of button holes. The button carrier plate is made of a metal material, and the button carrier plate and the joint portion are integrally formed by in-mold injection.

Compared with the prior art, the second casing upper casing of the mobile phone comprises a button carrier plate and a joint portion, and the button carrier plate and the joint portion are integrally formed by an in-mold injection method, and the button carrier plate is formed It is generally made of a metal material, so that the structural rigidity of the upper case can be improved.

The present invention discloses a portable electronic device casing suitable for use in a mobile electronic device such as a mobile phone or a personal digital assitant (PDA). The preferred embodiment of the present invention is described by taking the mobile phone 20 as an example.

Referring to FIG. 3, the mobile phone 20 includes a first housing 22, a second housing 24, and a hinge 26. The hinge 26 hinges the first housing 22 and the second housing 24 together.

The second casing 24 includes an upper casing 242, a button soft plate 244, a circuit board 246, a lower casing 248, and a plurality of retaining members (not shown). The button soft board 244 is held on the upper case 242. The lower case 248 houses the circuit board 246 therein. The upper case 242 and the lower case 248 are engaged with each other and are fixed by the holding member. In this embodiment, the holding member is a bolt.

The upper casing 242 includes a button carrier plate 2422 and a joint portion 2424. The button carrier plate 2422 is substantially a flat body made of metal and is preferably a conductive metal such as iron, aluminum or a magnesium alloy. The button carrier plate 2422 is provided with a plurality of button holes 2423 extending therethrough.

The joint portion 2424 is made of a plastic material, and is integrally formed with the button carrier plate 2422 by in-mold injection to form the upper casing 242, and the joint portion 2424 is formed on the periphery of the button carrier plate 2422. The joint portion 2424 is provided with a plurality of ridges (not shown) and a plurality of retaining holes 2425. The joint portion 2424 is engaged with the lower casing 248 by the tenon and then fixed to the lower casing 248 by the retaining hole 2425.

The button soft board 244 is substantially a flat body, and its shape and size are substantially equivalent to the key carrying board 2422. The button soft board 244 is provided with a plurality of buttons 2442 for inputting numbers, characters, and the like. The button 2442 is disposed corresponding to the button hole 2423. The button soft board 244 is attached to the key carrier board 2422 in such a manner that the button 2442 is slidably received in the button hole 2423.

The circuit board 246 is substantially a flat body, and its shape and size are matched with the soft board of the button. 244 is roughly equivalent. The circuit board 246 has a top surface 2462 and a bottom surface 2464 opposite the top surface 2462. The top surface 2462 is provided with a complex signal sensing unit 2466. The signal sensing unit 2466 is disposed corresponding to the button 2442 of the button soft board 244. When the button 2442 is pressed, the button 2442 then presses the corresponding signal sensing portion 2466, and the circuit of the circuit board 246 is briefly turned on, thereby generating an electrical signal.

The lower casing 248 includes a left wall 2481, a right wall 2482 opposite the left wall 2481, a front wall 2482 adjacent to the left wall 2481, and a rear wall 2484. The left wall 2481, the right wall 2482, the front wall 2482 and the rear wall 2484 are connected into a square casing and form an accommodation chamber 2485. The accommodating chamber 2485 is used to accommodate the circuit board 246. A plurality of recesses (not shown) are disposed on the lower casing 248 corresponding to the tenons, and the lower casing 248 is engaged with the upper casing 242 by the engagement of the recesses with the tenons. A plurality of holding posts 2486 are disposed on the corresponding holding holes 2425 of the lower case 248. In this embodiment, a threaded hole (not shown) is formed in the holding post 2486. The retaining post 2486 of the lower casing 248 is received in the retaining hole 2425 of the upper casing 242, and the bolt is screwed into the threaded hole of the retaining post 2486 to prevent the retaining post from being disengaged from the latch. The holes thereby hold the upper case 242 and the lower case 248.

Referring to FIG. 4 and FIG. 5 , when the second casing 24 of the mobile phone 20 is assembled, the circuit board 246 is first placed in the receiving chamber 2485 of the lower casing 248 with the signal sensing portion 2466 away from the lower casing 248. Then, the button soft board 244 is fixed on the upper case 242, and the button 2442 is aligned with the button hole 2223. In this embodiment, the button soft board 244 is adhered to the upper case 242; The upper shell 242 of the lower plate 248 is disposed on the lower casing 248, and the retaining post 2486 of the lower casing 248 is received in the retaining hole 2425 of the upper casing 242. At this time, the holding member is clamped on the holding post 2486, thereby holding the upper casing 242, the soft keyboard 244, the circuit board 246 and the lower casing 248, that is, the second casing 24 of the mobile phone 20 is assembled. .

It can be understood that the holding member can be omitted, and the upper case 242 and the lower case 248 are held by the interference fit of the holding hole 2425 and the holding post 2486.

It can be understood that the button soft board 244 and the upper shell 242 can also be held by other means, such as a screw connection.

It can be understood that the button carrier 2422 can be electrically connected to the ground (not shown) of the circuit board 246 by a conductive component (not shown) to ground the static electricity generated by the upper casing 242, thereby protecting the electrons on the circuit board 246. Component (not shown).

The upper casing 242 of the second casing 24 of the mobile phone 20 includes a button carrier plate 2422 and a joint portion 2424, and the button carrier plate 2422 and the joint portion 2424 are integrally formed by in-mold injection. In this way, complicated operations such as subsequent assembly and sealing can be omitted, and the production efficiency and the processing cost can be greatly improved. In addition, since the key bearing plate 2422 is integrally formed in the joint portion 2424 of the upper casing 242, and the button carrier plate 2422 is generally made of a metal material, the structural rigidity of the upper casing 242 can be improved.

In addition, the joint portion 2424 of the upper casing 242 is made of a plastic material. Thus, the joint portion 2424 is convenient to form the tenon that engages with the lower casing 248.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are Should Covered in the scope of the following patent application.

(known)

10‧‧‧ portable electronic devices

1224‧‧‧Keyboard

11‧‧‧ first case

1225‧‧‧ button

12‧‧‧ second case

123‧‧‧Circuit board

121‧‧‧Upper casing

1231‧‧‧Signal sensing department

1212‧‧‧ housing wall

124‧‧‧ Lower case

122‧‧‧Key Module

125‧‧‧Cards

1222‧‧‧Key carrier board

13‧‧‧ Hinges

1223‧‧‧Keyhole

(this invention)

20‧‧‧Mobile Phone

2462‧‧‧ top surface

22‧‧‧ first case

2464‧‧‧ bottom

24‧‧‧ second case

2466‧‧‧Signal sensing department

242‧‧‧Upper shell

248‧‧‧ lower case

2422‧‧‧Key carrier board

2481‧‧‧ left wall

2423‧‧‧Keyhole

2482‧‧‧ right wall

2424‧‧‧Combination Department

2483‧‧‧ front wall

2425‧‧‧ card holder

2484‧‧‧Back wall

244‧‧‧ button soft board

2485‧‧‧ housing room

2442‧‧‧ button

2486‧‧‧Card column

246‧‧‧ boards

26‧‧‧ Hinges

1 is a perspective view of a conventional portable electronic device; FIG. 2 is an exploded perspective view of a conventional portable electronic device casing; FIG. 3 is an exploded perspective view of a preferred embodiment of the portable electronic device casing of the present invention; The portable electronic device casing key soft board of the present invention is assembled to the upper casing and the circuit board is assembled to the lower casing. FIG. 5 is a schematic view of the upper casing and the lower casing of the portable electronic device casing of the present invention.

20‧‧‧Mobile Phone

2462‧‧‧ top surface

22‧‧‧ first case

2464‧‧‧ bottom

24‧‧‧ second case

2466‧‧‧Signal sensing department

242‧‧‧Upper shell

248‧‧‧ lower case

2422‧‧‧Key carrier board

2481‧‧‧ left wall

2423‧‧‧Keyhole

2482‧‧‧ right wall

2424‧‧‧Combination Department

2483‧‧‧ front wall

2425‧‧‧ card holder

2484‧‧‧Back wall

244‧‧‧ button soft board

2485‧‧‧ housing room

2442‧‧‧ button

2486‧‧‧Card column

246‧‧‧ boards

26‧‧‧ Hinges

Claims (9)

A portable electronic device casing includes: an upper casing, comprising: a button carrier plate, the button carrier plate is made of a metal material, the button carrier plate is provided with a plurality of button holes; and a joint portion, the combination The portion is made of a plastic material, and the button carrier plate is embedded in the joint portion. The joint portion is formed on a periphery of the button carrier plate, and the joint portion and the button carrier plate are integrally formed by in-mold injection. The portable electronic device casing of claim 1, further comprising a button soft board, wherein the button soft board is provided with a plurality of keys, the button soft board is fixed on the button carrier board, and the plurality The corresponding button is placed in the button hole. The portable electronic device casing of claim 2, wherein the button soft board is fixed to the key carrier board by adhesive bonding. The portable electronic device casing of claim 2, wherein the button soft board is held on the button carrier board by a screw connection. The portable electronic device casing of claim 1, wherein the portable electronic device casing further comprises a lower casing, the upper casing being retained on the lower casing. The portable electronic device casing of claim 5, wherein the lower casing is provided with a plurality of clamping posts, and the upper casing defines a plurality of locking holes corresponding to the clamping posts, and the clamping posts are clamped to the casing Hold the hole inside the card. The portable electronic device casing of claim 6, wherein the clamping column is provided with a threaded hole, the portable electronic device casing further includes a plurality of bolts, and the bolt is screwed into the threaded hole In case of the card The post is disengaged from the retaining hole. The portable electronic device casing of claim 5, wherein the portable electronic device casing further comprises a circuit board, the circuit board being received in the lower casing. The portable electronic device casing of claim 8, wherein the portable electronic device casing further comprises a conductive component, and the button carrier plate is electrically connected to the ground end of the circuit board by the conductive component.