CN106601526A - Waterproof button structure and mobile terminal - Google Patents

Abstract

The present invention provides a waterproof button structure, which includes a mobile terminal middle frame, a button and a trigger. The button includes a button surface, a key body and a conductive column. It is characterized in that the middle frame of the mobile terminal is provided with a key groove in a first direction. To install the button, a first fixing groove and a second fixing groove are provided in a second direction perpendicular to the first direction, and the second fixing groove communicates with the keyway; wherein, the first fixing groove is provided with a second fixing groove. A fixing component is used to fix the key body, and the second fixing groove is provided with a second fixing component to fix the waterproof film on the conductive post, and the conductive post contacts the trigger through the waterproof film. The beneficial effects of the present invention are: the parts used for fixing are all independent detachable parts, and the waterproof effect is achieved through the transmission of pressure, which is convenient for disassembly and assembly, and makes the shell structure design of the mobile terminal simple.

Description

Waterproof button structure and mobile terminal

technical field

The invention relates to a key in a mobile terminal device, in particular to a waterproof key structure and a mobile terminal suitable for the waterproof key structure.

Background technique

The waterproof level requirement of IPX7 means that electrical appliances can be immersed in water for a certain period of time or the water pressure is below a certain standard, so as to ensure that they will not be damaged due to immersion in water. At present, smart mobile terminals on the market are becoming more and more popular, and their waterproof performance The requirements are also becoming higher and higher. At present, the waterproof requirements of IPX7 have become the design requirements and standards for waterproof mobile terminal equipment. How to increase the reliability of waterproof and simplify the structure of the package combination has become an urgent problem to be solved.

Contents of the invention

In view of the above, in order to solve the above problems, the object of the present invention is to provide a waterproof button structure, including a mobile terminal middle frame, a button and a trigger, the button includes a button surface, a key body and a conductive column, and it is characterized in that the The middle frame of the mobile terminal is provided with a keyway in the first direction to install the button, and the second direction perpendicular to the first direction is provided with a first fixing groove and a second fixing groove, and the second fixing groove communicates with the keyway ; Wherein, the first fixing groove is provided with a first fixing component to limit the key body, and the second fixing groove is provided with a second fixing component to fix the waterproof film on the conductive post, and the conductive post The trigger is contacted through the waterproof membrane.

According to an embodiment of the present invention, at least one stroke groove is respectively provided on both sides of the key body, and the stroke groove has a first side wall and an opposite second side wall; the first fixing groove is provided with at least one set of The position of the slot matches the travel groove, and the first fixing component is provided with a baffle plate, and is fixed against the first side wall or the second side wall through the slot.

According to an embodiment of the present invention, the first fixing member is a steel sheet, and the baffles are arranged on both sides of the steel sheet.

According to an embodiment of the present invention, the second fixing groove is provided with a first stop wall communicating with the keyway and an opposite second stop wall.

According to an embodiment of the present invention, the conductive post passes through the keyway and is exposed in the second fixing groove, the waterproof film covers the conductive post and the connecting part; The second retaining wall and the first retaining wall are used to fix the waterproof film and the conductive column.

According to an embodiment of the present invention, the second fixing component includes: a fixing plate, provided with a positioning hole, sleeved on the waterproof film and the conductive column, and a protrusion to resist the first retaining wall; a support member , an elastic wall is provided to resist the second retaining wall and the fixing plate.

According to an embodiment of the present invention, the support member is a C-shaped steel sheet.

According to an embodiment of the present invention, the thickness of the C-shaped steel sheet is 0.25 mm to 0.35 mm.

The present invention also provides a mobile terminal, including the waterproof key structure of any one of the above-mentioned embodiments.

According to the above-mentioned technical solution, the beneficial effect of the present invention is that the parts used for fixing are all independent detachable parts, and the waterproof effect is achieved through the transmission of pressure, which is convenient for disassembly and assembly, and the shell structure design of the mobile terminal is simple .

Description of drawings

Fig. 1 is a three-dimensional structure diagram of the waterproof button structure of the present invention.

Fig. 2 is a three-dimensional structure diagram of the waterproof button structure of the present invention.

Fig. 3 is a bottom sectional view of the waterproof key structure of the present invention.

Fig. 4 is a side sectional view of the waterproof key structure of the present invention.

Fig. 5 is a side sectional view of the waterproof key structure of the present invention.

detailed description:

In order to make the technical content disclosed in this application more detailed and complete, reference may be made to the drawings and the following various specific embodiments of the present invention, and the same symbols in the drawings represent the same or similar components. However, those skilled in the art should understand that the examples provided below are not intended to limit the scope of the present invention. In addition, the drawings are only for schematic illustration and are not drawn according to their original scale.

Below with reference to accompanying drawing, the specific implementation manner of each aspect of the present invention is described in further detail:

This technical solution provides a waterproof button structure, which is installed in a mobile terminal. The mobile terminal in this solution can be used for smart phones, tablet computers and any other handheld electronic devices.

As shown in FIG. 1 and FIG. 2, it is a three-dimensional structure diagram of the waterproof button structure of the present invention. With reference to FIG. 1 and FIG. 2, the technical solution includes a middle frame 1, a button 2 and a trigger 3 of the mobile terminal. Wherein, the key includes a key surface, a key body 21 and a conductive column 20 , and the key surface is used for being pressed by human fingers. The middle frame 1 of the mobile terminal is provided with key grooves to install the buttons 2 in the first direction, the first direction is the direction of the y-axis in the three-dimensional coordinate system, and the direction along the longitudinal axis of the middle frame of the mobile terminal. In addition, a first fixing groove 10 and a second fixing groove 12 are provided in a second direction perpendicular to the first direction. The second direction is the direction of the z-axis in the three-dimensional coordinate system and the direction of the vertical axis of the middle frame. The second fixing groove 12 communicates with the key groove and has a connecting portion 15. The conductive post passes through the key groove and is inserted into the second fixing groove 12. The key surface is exposed outside the middle frame, and the key body 21 is accommodated in the key groove.

As shown in Figure 3, it is a bottom view sectional view of the waterproof key structure of the present invention, and Figure 4 is a side view sectional view of the waterproof key structure of the present invention, and it can be known in conjunction with Figure 1, Figure 2 and Figure 4 that the first fixing groove 10 is provided with a first fixing component 11 to limit the excessive movement of the key body 21 in the key groove, and the second fixing groove 12 is provided with a second fixing component 13 to fix the waterproof film 14 on the conductive column 20, covered with a waterproof film 14 The conductive column 30 is in contact with the trigger 3 .

Further, it can be seen from Fig. 2 and Fig. 3 that at least one stroke groove is provided on both sides of the key body, and the stroke groove has a first side wall and an opposite second side wall; the first fixing groove 10 is provided with at least one set of Slots, in this technical solution, two slots match the position of the stroke groove on the key body 21, and the corresponding first fixing component 11 is inserted into the slot from top to bottom in the z-axis direction, as shown in Figure 3 As shown, the two inner sides of the fixing component 11 are provided with baffles, and the fixing component is fixed against the first side wall or the second side wall through the slot. In actual use, the first side wall and the second side wall of the travel groove are blocked. The solid state of the board can respectively represent the relaxed state of the key not being pressed and the state of the key being pressed and compressed, and the distance between the first side wall and the second side wall represents the stroke amount of the key.

Further, as shown in Figure 2, the first fixing component can be a mortise-shaped connector. In this technical solution, it is preferably a steel sheet. The steel sheet can be made into an O-shape or a C-shape, and the slot is provided with a stopper. The steel sheet can also be equipped with a retaining wall correspondingly. When inserted into the slot, a coupled installation structure can be formed to increase the structural strength. The O-shaped or C-shaped design can save materials, and the baffle is set on the steel sheet. sides.

As shown in FIG. 1 , the second fixing groove 12 is provided with a first stop wall communicating with the keyway and an opposite second stop wall. Wherein, the conductive column 20 is exposed in the second fixing groove 12 through the keyway, and the waterproof film 14 covers the conductive column 20 and the connecting portion 15 to achieve the effect of sealing and waterproofing; A retaining wall is used to fix and compress the waterproof film 14 . As shown in FIG. 2 , the waterproof film 14 is provided with a cap matching the top of the conductive post 20 .

Fig. 5 is a side view sectional view of the waterproof button structure of the present invention. As shown in Fig. 2, Fig. 4 and Fig. 5, the second fixing assembly 13 includes: a fixing plate, which is provided with a positioning hole, and is covered with a waterproof film 15. Conductive column 20, as shown in Figure 5, the fixed plate is also provided with protrusions on both sides of the positioning hole, the protrusions face the first retaining wall, in order to resist the first retaining wall, the second fixing assembly 13 also includes a support The support is provided with an elastic wall. In this technical solution, the support is preferably set as a group. The two supports use the elastic wall to resist the second retaining wall and the fixing plate, and make the protrusion of the fixing plate resist the second retaining wall. A retaining wall.

Further, as shown in Fig. 2 and Fig. 5, the supporting member is set as a C-shaped steel sheet, the main part of the C-shaped steel sheet forms an elastic wall, and the thickness of this steel sheet is 0.25mm to 0.35mm.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which the present invention belongs can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope defined in the claims.

Claims (9)

1. A waterproof key structure, comprising a mobile terminal middle frame, a key and a trigger, the key comprising a key surface, a key body and a conductive post, characterized in that the mobile terminal middle frame is provided with a keyway in the first direction to For installing the key, a first fixing groove and a second fixing groove are provided in a second direction perpendicular to the first direction, and the second fixing groove communicates with the keyway; Wherein, the first fixing groove is provided with a first fixing component to restrict the key body, and the second fixing groove is provided with a second fixing component to fix the waterproof film on the conductive post, and the conductive post passes through The waterproof membrane is in contact with the trigger. 2. The waterproof key structure according to claim 1, wherein at least one stroke groove is respectively provided on both sides of the key body, and the stroke groove has a first side wall and an opposite second side wall; The first fixing slot is provided with at least one set of slots matching the positions of the stroke slots, the first fixing assembly is provided with a baffle plate, and the first side wall or the second side wall is fixed through the slots. side wall. 3. The waterproof button structure according to claim 2, wherein the first fixing member is a steel sheet, and the baffles are arranged on both sides of the steel sheet. 4. The waterproof button structure according to claim 1, wherein the second fixing groove is provided with a first retaining wall communicating with the key groove and an opposite second retaining wall. 5. The waterproof button structure according to claim 4, wherein the conductive column passes through the keyway and is exposed in the second fixing groove, and the waterproof film covers the conductive column and the connecting portion; The second fixing component respectively resists the second retaining wall and the first retaining wall to fix the waterproof film and the conductive column. 6. The waterproof button structure according to claim 5, wherein the second fixing component comprises: a fixing plate, provided with a positioning hole, sleeved on the waterproof film and the conductive column, and a protrusion to resist said first retaining wall; The supporting member is provided with an elastic wall for resisting the second retaining wall and the fixing plate. 7. The waterproof button structure according to claim 6, wherein the support member is a C-shaped steel sheet. 8. The waterproof button structure according to claim 7, wherein the thickness of the C-shaped steel sheet is 0.25 mm to 0.35 mm. 9. A mobile terminal, characterized by comprising the waterproof key structure according to any one of claims 1-8.