TWI394513B - Electronic device - Google Patents

Description

Electronic device

The present invention relates to an electronic device, and more particularly to an electronic device having a detachable back cover.

Under normal circumstances, an electronic device such as a mobile phone has a detachable battery back cover, and the user can perform a battery replacement operation after opening the battery back cover.

Typically, the battery back cover is coupled to the electronic device by mechanical snapping. When the battery back cover is opened, the user applies pressure to the battery back cover by hand to separate the electronic device by sliding. However, the long-term sliding causes the rear cover of the battery to be smoothed in contact with the electronic device, so that the jam between the two is loose, so that the battery back cover is easily separated from the electronic device without applying an external force. Inconvenience to the user.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide an electronic device that solves the above problems by utilizing an elastic deformation of a base that is subjected to being pushed.

The present invention provides an electronic device including a middle frame, a rear cover and a button; the middle frame includes a bottom portion and a side wall protruding from the bottom portion, the bottom portion is formed with a first through hole, and the side wall is formed with a second pass The button includes a base portion and a sliding portion connected to the base portion, the base portion is elastically deformed by an external force, the base portion is fixed to the bottom of the middle frame, and the sliding portion is received in the second through hole; the rear cover includes An inner surface and a hook protruding from the inner surface, the end of the hook being formed with a hook portion, the hook passing through the first through hole, the hook portion being in contact with the base of the button such that the back cover Connected to the middle frame; the sliding portion is driven by the user to elastically deform the base portion, so that the base portion is disengaged from the hook.

The electronic device of the invention utilizes the elastic deformation of the button base under the presumption, which facilitates the quick separation of the back cover from the electronic device, thereby avoiding the situation that the back cover is automatically detached from the electronic device due to sliding for a long time. occur.

Please refer to FIG. 1 , which is a perspective view of a preferred embodiment of an electronic device of the present invention. In this embodiment, the electronic device is a mobile phone. The electronic device includes a back cover 1, a middle frame 2 and a button 3.

2 and 3, the back cover 1 is substantially rectangular and includes an inner surface (not labeled) and a hook protruding from the inner surface. In the present embodiment, the number of hooks is two, which are a hook 11 and a hook 12, respectively, and the hooks 11 and the hooks 12 have the same configuration. Specifically, the hook 11 includes a hook portion 111 at its end. Likewise, the hook 12 includes a hook portion 121 at its end.

The middle frame 2 is generally rectangular in shape and includes a bottom portion 20 and side walls 24 projecting from the bottom portion 20. The bottom portion 20 includes a first through hole equal in number to the hooks, and in the present embodiment, the first through holes are through holes 21, 22. The side wall 24 includes a second through hole 23. In the embodiment, the first through holes 21 , 22 and the second through holes 23 are rectangular holes, and the second through holes 23 are located between the first through holes 21 and the first through holes 22 . In other embodiments, the first through hole 21, the first through hole 22, and the second through hole 23 may also have other shapes, such as a circle, a square, etc., and the second through hole 23 may not be located at the first. Between the through hole 21 and the first through hole 22.

The button 3 is made of plastic and includes a base 30 and a sliding portion 31 connected to the base. The base 30 is formed with an abutment surface 32. In the present embodiment, the abutting surface 32 is a curved surface formed by the base portion 30 protruding upward, and the base portion 30 further includes a left side wall 33, a right side wall 34, an elastic wall 35, and a rear wall 37. The elastic wall 35, the left side wall 33, the right side wall 34, and the rear wall 37 are connected to each other to define a hollow portion 36. The hollow portion 36 provides a space for the rear wall 37 to move. The elastic wall 35 is deformed when the rear wall 37 approaches. The sliding portion 31 extends from the rear wall 37 in a direction away from the elastic wall 35. In other embodiments, the base portion 30 may have other structures as long as the base portion 30 has a certain elasticity.

The button 3 is fixed to the bottom 20 of the middle frame 2. Specifically, the base portion 30 is fixed to the bottom portion 20 , and the sliding portion 31 is movably received in the second through hole 23 of the side wall 30 of the middle frame 2 . In the present embodiment, the base portion 30 is fixed to the bottom portion 20 by heat fusion. It will be appreciated that the base 30 can also be attached to the base 20 by other suitable means of attachment, such as gluing, welding, etc., as desired.

Referring to FIG. 4 , after the rear cover 1 is connected to the middle frame 2 , the hook 11 and the hook 12 of the rear cover 1 respectively pass through the first through hole 21 and the first through hole 22 of the middle frame 2 . And the hook portion 111 and the hook portion 121 abut against the abutting surface 32 of the base portion 30 of the button 3.

When the back cover 1 is removed, the user can push the sliding portion 31 accommodated in the second through hole 23 of the side wall 30 of the middle frame 2 with the thumb. The rear wall 37 is moved toward the elastic wall 35 by the sliding portion 31. When the rear wall 37 is moved by a predetermined distance and the elastic wall 35 is deformed correspondingly, the hook portion 111 and the hook portion 121 of the rear cover 1 are separated from the abutting surface 32, and the rear cover 1 is thus Remove from the middle frame 2. After the user's thumb leaves, the elastic wall 35 returns to deformation, and the rear wall 32 returns to its original position.

1‧‧‧ Back cover

2‧‧‧ middle frame

3‧‧‧ button

11‧‧‧ hook

12‧‧‧ hook

111‧‧‧ hook

121‧‧‧ hook

20‧‧‧ bottom

24‧‧‧ side wall

21‧‧‧First through hole

22‧‧‧ first through hole

23‧‧‧Second through hole

30‧‧‧ base

31‧‧‧Sliding section

32‧‧‧Resistance

33‧‧‧ left wall

34‧‧‧ right wall

35‧‧‧Flexible wall

37‧‧‧ Back wall

36‧‧‧ hollow part

20‧‧‧ bottom

1 is a perspective view of a preferred embodiment of an electronic device of the present invention.

2 is an exploded view of a preferred embodiment of the electronic device of the present invention.

3 is an exploded perspective view of another preferred embodiment of the electronic device of the present invention.

4 is a partial cross-sectional view of a preferred embodiment of the electronic device of the present invention.

1‧‧‧ Back cover

2‧‧‧ middle frame

3‧‧‧ button

11‧‧‧ hook

12‧‧‧ hook

111‧‧‧ hook

121‧‧‧ hook

20‧‧‧ bottom

24‧‧‧ side wall

21‧‧‧First through hole

22‧‧‧ first through hole

23‧‧‧Second through hole

30‧‧‧ base

31‧‧‧Sliding section

32‧‧‧Resistance

33‧‧‧ left wall

34‧‧‧ right wall

35‧‧‧Flexible wall

37‧‧‧ Back wall

36‧‧‧ hollow part

20‧‧‧ bottom

Claims (7)

An electronic device comprising a middle frame and a back cover, wherein the electronic device further comprises: a button; the middle frame includes a bottom portion and a side wall protruding from the bottom portion, the bottom portion is formed with a first through hole, and the side wall is formed with a first a second through hole; the button includes a base and a sliding portion connected to the base, the base of the button further comprising an elastic wall, a left side wall, a right side wall and a rear wall, the elastic wall, the left side wall, the right side wall and the rear The wall is interconnected to define a hollow portion, the hollow portion provides a moving space for the rear wall, the rear wall is driven by an external force to elastically deform the elastic wall, the base is fixed to the bottom of the middle frame, and the sliding portion is received by The second through hole includes: an inner surface and a hook protruding from the inner surface, the end of the hook being formed with a hook portion, the hook passing through the first through hole, the hook portion and the hook portion The rear wall of the button is in contact with the rear cover to be connected to the middle frame; the sliding portion is pushed to elastically deform the elastic wall, so that the rear wall is disengaged from the hook. The electronic device of claim 1, wherein the button is made of plastic. The electronic device of claim 1, wherein the button is fixed to the middle frame by means of hot melt. The electronic device of claim 1, wherein the electronic device is a mobile phone. The electronic device of claim 1, wherein the base of the button is formed with an abutting surface, the hook portion is adapted to interfere with the abutting surface. The electronic device of claim 5, wherein: the contact surface A curved surface formed by projecting the base upward. The electronic device of claim 1, wherein the first through hole and the second through hole are rectangular holes.