WO2018059099A1

WO2018059099A1 - Key structure and mobile terminal device

Info

Publication number: WO2018059099A1
Application number: PCT/CN2017/094537
Authority: WO
Inventors: 林煜桂; 陈佳
Original assignee: 广东欧珀移动通信有限公司
Priority date: 2016-09-27
Filing date: 2017-07-26
Publication date: 2018-04-05
Also published as: CN206059231U

Abstract

Disclosed are a key structure and a mobile terminal device. The key structure comprises a first housing (140) and a second housing (120) provided inside the first housing, the first housing being provided with a key hole (142) where a key body (200) is connected to the second housing. The key body (200) comprises a key cap (210) snapped into and protruding from the key hole, a lever spring (230) connected to the second housing with one side directly facing the key cap, a key switch (220) arranged on the other side of the lever spring and eccentrically corresponding to the key cap, and a circuit board arranged inside of the first housing and corresponding to the key switch. The key structure does not influence the pressing sensation and the function failure of keys will not occur.

Description

Button structure and mobile terminal equipment

Technical field

The present application relates to the field of electronic mobile device technologies, and in particular, to a button structure and a mobile terminal device.

Background technique

In the conventional technology, the button structure mainly includes a key cap and a key switch, and the key switch is electrically connected to the circuit board, and the key switch is moved up and down by pressing the key cap to realize the corresponding function. In general, the key cap corresponds to the center of the push button switch. However, due to the circuit structure and space constraints, the eccentricity of the key cap and the center of the push button switch may sometimes occur, and the touch may be affected when pressed, and sometimes the button function may not be realized.

Application content

Based on this, in order to solve the above technical problem, the present application proposes a button structure and a mobile terminal device, which does not affect the pressing feel, and does not cause a button function failure.

Its technical solutions are as follows:

A button structure includes a first housing, a second housing disposed on an inner side of the first housing, a first button housing having a button hole, and the button hole being disposed with the second a button body connected to the housing;

The button body includes a key cap that is inserted and protrudes from the button hole, and a lever elastic piece that is connected to the second casing and has a side opposite to the key cap is disposed on the other side of the lever elastic piece. a button switch corresponding to the key cap eccentricity, and a circuit board disposed inside the first casing and corresponding to the button switch.

In addition, the present application further provides a mobile terminal device including the button structure as described above, and the first housing is configured as a side shell, the second housing is disposed as a middle shell, and further includes a screen and a rear case on both sides of the middle case, the side case being connected between the screen and the rear case.

The application has the following outstanding advantages: by providing a lever spring in the button structure to engage the key cap and the key switch in an eccentric state, when the key cap is pressed, the button switch is normally pressed by pressing the lever spring, thereby making The eccentric form of the button structure also has a good feel, and there is no button failure.

DRAWINGS

1 is a schematic cross-sectional structural view of a button structure in an embodiment of the present application;

Figure 2 is a partially enlarged schematic view showing a portion A of Figure 1;

3 is a schematic exploded view of the structure of the button in the embodiment of the present application;

4 is a perspective structural view of a lever elastic piece of the button structure in the embodiment of the present application.

Description of the reference signs:

100-mobile terminal device, 110-screen, 120-middle case (second case), 130-back case, 140-side case (first case), 142-button hole, 200-button body, 210-key Cap, 220-button switch, 230-lever tab, 232-connector, 234-master button, 234a-press, 234b-switch set, 236-auxiliary.

detailed description

The embodiments of the present application are described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 to FIG. 3, a button structure includes a first housing 140, a second housing 120 disposed on the inner side of the first housing 140, and a button hole is defined in the first housing 140. 142. The button body 142 is provided with a button body 200 connected to the second housing 120. The first housing 140 and the second housing 120 are cooperatively mounted to form a support structure of the button body 200.

Moreover, as shown in FIG. 2, the button body 200 includes a key cap 210 that is latched and protrudes from the button hole 142, and is connected to the second housing 120 and has a side opposite to the key cap 210. a lever spring 230, a key switch 220 disposed on the other side of the lever elastic piece 230 and eccentrically corresponding to the key cap 210, and a circuit board disposed inside the first housing 140 and corresponding to the key switch 220 (Not shown in the figure). That is, the key cap 210 and the key switch 220 are respectively located on both sides of the lever elastic piece 230, and the two are eccentrically disposed. The lever elastic piece 230 is mounted on the second housing 120, the key switch 220 is disposed on the lever elastic piece 230, and the key cap 210 is installed at the key hole 142 of the first housing 140, thereby forming a lever elastic piece 230. Button structure. Moreover, the button switch 220 is eccentrically associated with the key cap 210, and the lever elastic piece 230 is opposite to the key cap 210. When the key cap 210 is pressed, the key cap 210 is lowered to first press the lever elastic piece 230 to be pressed to the lever elastic piece 230. The button switch 220 is connected to the corresponding circuit board, that is, the button switch 220 is electrically connected to the circuit board. In an embodiment, the button switch 220 can be an element disposed on the surface of the circuit board to realize its corresponding Key Function. By providing the lever elastic piece 230, even if the key switch 220 and the key cap 210 are eccentric, the lever spring 230 disposed inside the casing can be normally pressed to the key switch 220 by pressing the lever elastic piece 230, and the key switch 220 does not appear. In the case of a poor hand feeling when the structure is pressed, there is no possibility that the pressing failure occurs.

Moreover, as shown in FIG. 4, the lever elastic piece 230 includes a sheet-like connecting portion 232 connected to the second housing 120, and a sheet-shaped button portion connected to the connecting portion 232 and having an angle, The button switch 220 is disposed on one side of the button portion and is eccentrically associated with the key cap 210. The key cap 210 is located on the other side of the button portion and corresponds to an end portion of the button portion. The lever elastic piece 230 is fixed to the second housing 120 through the connecting portion 232, and the button portion and the connecting portion 232 can be formed in an L-shaped structure. When the keycap 210 is pressed, the keycap 210 will press the button portion of the lever spring 230 opposite thereto, and the button portion will press the button switch 220 disposed thereon but eccentric with the key cap, so that the button switch 220 and the circuit board Connected. Thereby, the key switch eccentric with the keycap 210 can be normally pressed by the lever elastic piece 230. Further, when the keycap 210 is released, the key switch 220 provided on the button portion is reset by the elastic force of the protruding button portion of the lever elastic piece 230, so that the key switch 220 is separated from the circuit board. In addition, in some embodiments, the angle between the connecting portion 232 and the button portion may be an acute angle or an obtuse angle. However, in the embodiment, the angle between the connecting portion 232 and the button portion is preferably a right angle, that is, the connecting portion 232 and the button portion are disposed perpendicular to each other, so that the design and processing are relatively simple, and the elasticity of the button portion can be ensured.

Moreover, the button portion includes a sheet-shaped main button portion 234, and two sheet-shaped auxiliary button portions 236 located on both sides of the main button portion 234 and lower than the main button portion 234, and the button switch 220 is disposed on the button The main button portion 234 and the auxiliary button portion 236 are disposed, and both ends of the button switch 220 are disposed on the auxiliary button portion 236. Thus, the auxiliary button portions 236 on both sides provide support from both ends of the button switch 220, and the prize button switch 220 is disposed between the auxiliary button portion 236 and the main button portion 234 to clamp and fix the button switch 220. Moreover, the portion of the button switch 220 located between the two auxiliary button portions 236 is leaked to facilitate correspondence with the circuit board. When the button portion and the button switch 220 are pressed, the button switch 220 is conveniently connected to the circuit board. In this embodiment, the two ends of the push button switch 220 can be fixed to the auxiliary button portion 236 with an adhesive.

Moreover, the main button portion 234 includes a pressing end 234a that protrudes from the auxiliary button portion 236 and faces the key cap 210, and a switch setting end 234b that corresponds to the button switch 220. When the keycap 210 is pressed, the pressing end 234a of the lever elastic piece 230 is first pressed, thereby causing displacement of the switch setting end 234b connected to the pressing end 234a, thereby pressing the key switch 220 corresponding to the switch setting end 234b. Further, by providing the protruding pressing end 234a, it is convenient to correspond to the keycap 210, and when the keycap 210 is pressed, the pressing portion 234a can be pressed to press down the button portion of the entire lever elastic piece 230. Moreover, by merely arranging the pressing end 234a, the space occupied by the entire button portion can be reduced. Further, the switch setting end 234b is provided with a switch hole for placing the button switch 220, and the button switch 220 partially protrudes from the switch hole and is eccentrically corresponding to the key cap 210. The switch hole is opened on the switch 234b, and the button switch 220 is partially protruded from the switch hole. On the one hand, the button switch 220 can be fixed and fixed, and on the other hand, the button switch 220 can be corresponding to the key cap 210 and reduced. The distance between the two reduces the pressing trigger time of the push button switch 220.

In addition, the connecting portion 232 may be disposed in an L shape, including a housing connecting end connected to the second housing 120, and a transition end connecting the housing connecting end and the button portion. By providing the connecting portion 232 in the L shape, the connecting portion 232 and the second housing 120 can be connected more tightly and reliably, and are less likely to fall off. Further, the second housing 120 includes an L-shaped elastic piece connecting end, and the inner connecting side of the connecting end of the connecting portion 232 is connected to the inner side of the elastic connecting end. This can make the connecting portion 232 and the second housing 120 The connection is more reliable, and the lever spring 230 and the push button switch 220 are stable and reliable when the lever spring 230 is pressed. Moreover, the outer side of the elastic piece connecting end is provided with the circuit board (ie, the elastic piece connecting end also provides support for the circuit board), and the circuit board corresponds to the key switch 220. Further, the elastic piece connecting end and the housing connecting end can be fixed by an adhesive connection. This connection is simple and convenient, and the connection is reliable.

In addition, the lever elastic piece 230 can be disposed in a U shape, and the housing connecting end and the button portion are respectively disposed at two ends of the transition end, and the elastic piece connecting end and the button switch 220 are respectively disposed on the lever elastic piece 230. Inside the ends.

In addition, as shown in FIG. 1 to FIG. 3, the present application further provides a mobile terminal device including the button structure as described above, and the first housing 140 is disposed as a side shell, and the second housing 120 is disposed. It is a middle case; and further includes a screen 110 and a rear case 130 respectively disposed on both sides of the middle case 120, and the side case 120 is connected between the screen 110 and the rear case 130. The mobile terminal device having the above-mentioned button structure is relatively close to the screen when the button structure position is located, because the key cap of the button structure is relatively upper, the internal button switch is not restricted by the space limitation of the screen, so that the middle shell and the side shell are located The key switch between the button and the key cap is relatively large, but under the action of the lever spring provided in the housing, the button switch can be pressed by normally pressing the keycap. Therefore, the button structure still has a good hand feeling, and there is no case where the button malfunctions. In this embodiment, the mobile terminal device can be set as an electronic device such as a mobile phone, an audio video playing device, a tablet computer, a notebook computer, or the like.

The button structure and the mobile terminal device provided by the present application, by providing a lever elastic piece in the button structure, to engage the key cap and the key switch in an eccentric state, so that when the key cap is pressed, the button switch is normally pressed by pressing the lever elastic piece, Therefore, the eccentric form of the button structure also has a good hand feeling, and there is no case where the button is malfunctioning.

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-mentioned embodiments are merely illustrative of several embodiments of the present application, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the claims. It should be noted that for the ability A person skilled in the art can make a number of variations and modifications without departing from the spirit of the present application, and these are all within the scope of the present application. Therefore, the scope of the invention should be determined by the appended claims.

Claims

a button structure, comprising: a first housing, a second housing disposed inside the first housing, the first housing is provided with a button hole, and the button hole is provided with a button body connected to the second housing;

The button body includes a key cap that is inserted and protrudes from the button hole, and a lever elastic piece that is connected to the second casing and has a side opposite to the key cap is disposed on the other side of the lever elastic piece. a button switch corresponding to the keycap eccentricity, the button switch being used for electrical connection with the circuit board.
The button structure according to claim 1, wherein the lever spring piece includes a connecting portion connected to the second housing, and a button portion connected to the connecting portion and having an angle, the button switch And disposed on one side of the button portion and corresponding to the keycap eccentricity, the key cap is located on the other side of the button portion and corresponds to an end portion of the button portion.
The button structure according to claim 2, wherein the button portion comprises a main button portion, and two auxiliary button portions located on both sides of the main button portion and lower than the main button portion, the button switch setting The main button portion and the auxiliary button portion are disposed, and both ends of the button switch are disposed on the auxiliary button portion.
The button structure according to claim 3, wherein the main button portion includes a pressing end that protrudes from the auxiliary button portion and faces the key cap, and a switch setting end corresponding to the button switch.
The button structure according to claim 4, wherein the switch setting end is provided with a switch hole for arranging the button switch, and the button switch portion protrudes from the switch hole and is eccentrically corresponding to the key cap.
The button structure according to any one of claims 2 to 5, wherein the connecting portion is provided in an L shape, including a housing connecting end connected to the second housing, and connecting the housing The transition end of the end and the button portion.
The key structure according to claim 6, wherein said second housing comprises a bullet The connecting end of the connecting portion of the connecting portion is connected to the inner side of the connecting end of the elastic piece, and the connecting end of the elastic piece is L-shaped.
The button structure according to claim 7, wherein the elastic piece connecting end and the housing connecting end are fixed by an adhesive connection.
The button structure according to claim 7, wherein the lever elastic piece is disposed in a U shape, and the housing connecting end and the button portion are respectively disposed at two ends of the transition end, the elastic piece connecting end and the key switch Correspondingly disposed on the inner sides of both ends of the lever elastic piece.
A mobile terminal device, comprising the key structure according to any one of claims 1-9, wherein the first housing is provided as a side shell, and the second housing is provided as a middle shell;

Also included are a screen and a rear case respectively disposed on both sides of the middle case, the side case being coupled between the screen and the rear case.
a button structure for mounting in a button hole on a first housing of the mobile terminal, and for connecting to a second housing of the mobile terminal, the first housing being an outer casing of the mobile terminal The second housing is located on the inner side of the first housing, wherein the button structure comprises a key cap, a lever spring and a key switch, and the key cap is configured to cooperate with the button hole, a lever spring for connecting the second housing, the key cap and the button switch are respectively located on two sides of the lever elastic piece, and the key cap and the key switch are eccentrically correspondingly arranged, and the button switch is used And electrically connected to a circuit board in the mobile terminal.
The key structure according to claim 11, wherein the lever elastic piece includes a connecting portion for connecting to the second housing, and a button portion connected to the connecting portion and having an angle, The button switch is disposed on one side of the button portion and is eccentrically associated with the key cap, and the key cap is located on the other side of the button portion and corresponds to an end portion of the button portion.
The button structure according to claim 12, wherein the button portion comprises a main button portion, and two auxiliary button portions located on both sides of the main button portion and lower than the main button portion, the button switch setting The main button portion and the auxiliary button portion are disposed, and both ends of the button switch are disposed on the auxiliary button portion.
The button structure according to claim 13, wherein the main button portion includes a pressing end that protrudes from the auxiliary button portion and faces the key cap, and a switch setting end corresponding to the button switch.
The button structure according to claim 14, wherein the switch setting end is provided with a switch hole for arranging the button switch, and the button switch portion protrudes from the switch hole and is eccentrically corresponding to the key cap.
The key structure according to any one of claims 12-15, wherein the connecting portion is provided in an L shape, including a housing connecting end for connecting to the second housing, and connecting the shell The transition end of the body connection end and the button portion.
The button structure according to claim 16, wherein the second housing comprises a spring connecting end, and the inner side of the connecting end of the connecting portion is used for connecting the inner side of the elastic connecting end, the elastic piece The connection end is L-shaped.
The button structure according to claim 17, wherein the lever elastic piece is disposed in a U shape, and the housing connecting end and the button portion are respectively disposed at two ends of the transition end, and the elastic piece connecting end and The button switches are respectively disposed on the inner sides of the two ends of the lever elastic piece.