CN218631748U

CN218631748U - Key waterproof structure and electronic equipment

Info

Publication number: CN218631748U
Application number: CN202221993074.6U
Authority: CN
Inventors: 王东坡
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-03-14
Anticipated expiration: 2032-07-27

Abstract

The application is suitable for the waterproof construction field, discloses a button waterproof construction and electronic equipment. Wherein, button waterproof construction includes: the key position is arranged on the machine shell; the waterproof switch module comprises a circuit board and an electronic switch, the electronic switch is arranged on the circuit board, the circuit board and the machine shell are integrally formed, and the electronic switch is arranged in the key positions. The waterproof structure of button that this application provided has guaranteed the waterproof performance of preferred, has ensured the normal work of electronic equipment.

Description

Key waterproof structure and electronic equipment

Technical Field

The application relates to the field of waterproof structures, in particular to a key waterproof structure and an electronic device.

Background

With the continuous development of electronic devices, the waterproof requirements of users on the electronic devices are also increasing, wherein the waterproof at the keys of the electronic devices is the most important. However, since the keys need to be moved and have a function guaranteed, the waterproof function at the keys is more complicated than that at other positions.

In the existing electronic equipment, the commonly used key waterproof structure is mostly sealed by a silica gel ring or is in a waterproof switch mode.

When adopting the silica gel circle to seal, through the interference of silica gel circle with all around the casing, reach sealed effect, however, adopt the sealed structure of silica gel circle can have the problem of equipment difficulty, the silica gel circle takes place the upset scheduling problem in the assembling process in addition, perhaps the silica gel circle itself has the size or when lacking the scheduling problem, all probably leads to not reaching water-proof effects.

When the waterproof switch is independently adopted, the sealing structure is still required to seal the space reserved for the FPC flat cable and the waterproof switch assembly at the switch mounting position, and the electronic equipment still cannot achieve the waterproof effect under the condition that the sealing structure has assembly problems or defects.

SUMMERY OF THE UTILITY MODEL

The application provides a button waterproof construction and electronic equipment, and it aims at solving current button waterproof construction and is difficult to reach water-proof effects's technical problem.

In order to achieve the above object, the present application provides a button waterproof structure, including:

the key position is arranged on the machine shell;

the waterproof switch module comprises a circuit board and an electronic switch, the electronic switch is arranged on the circuit board, the circuit board and the machine shell are integrally formed, and the electronic switch is arranged in the key positions.

The application also provides an electronic device, which comprises the key waterproof structure.

The application provides a button waterproof construction is further with circuit board and casing integrated into one piece back for even soak between button and the electronic equipment gap, can not dip in electronic equipment yet, guaranteed the waterproof performance of preferred, ensure the normal work of electronic equipment. And so, saved the operation of equipment silica gel circle and switch button, saved manpower and materials, simultaneously, also can not influence the button of electronic equipment itself and feel because of the existence of silica gel circle.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a waterproof key structure provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a waterproof switch module of a waterproof key structure according to an embodiment of the present application;

FIG. 3 is a schematic partial structural diagram of an electronic device according to an embodiment of the present disclosure;

fig. 4 is a second partial schematic structural diagram of an electronic device according to an embodiment of the present disclosure.

The reference numbers illustrate: 10: a housing; 10a: pressing a key position; 10b: a button slot; 20: a waterproof switch module; 21: a circuit board; 211: a key circuit board; 212: connecting the circuit board; 22: an electronic switch; 23: a waterproof sheet; 30: a button.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present application are only used to explain the relative positional relationship between the components in a specific posture, the motion situation, etc., and if the specific posture is changed, the directional indicators are correspondingly changed.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or be indirectly connected to the other element through intervening elements.

Furthermore, the descriptions in this application that refer to "first," "second," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope claimed in the present application.

For electronic equipment with waterproof requirements, the waterproof function of the key is very important, and the waterproof structure of the key and the electronic equipment are specially provided in order to ensure effective waterproof of the electronic equipment and ensure the functions of the key. The electronic equipment provided by the application can be mobile phones, flat plates and other electronic equipment with keys, and the whole waterproof effect of the electronic equipment is improved through the waterproof structure of the keys.

As shown in fig. 1 to 4, a waterproof structure for a key and an electronic device according to an embodiment of the present application are provided.

As shown in fig. 1 and 2, the waterproof structure of the key includes a housing 10 and a waterproof switch module 20.

In this application, the casing 10 is provided with a key 10a, and the key 10a is used for performing key control to realize corresponding function control of the electronic device. Optionally, the button 10a is a through hole of the casing 10 communicating with the electronic switch 22 described below, so that the contact point of the installed button 30 can be controlled by abutting against the electronic switch 22, or a movable structure is arranged at the casing 10 corresponding to the button 10a, and after the button 30 is installed, the button 30 indirectly controls the electronic switch 22 through the movable structure.

The casing 10 is a mounting and supporting structure of the waterproof structure of the key, and may be a structure independent from the electronic device or a structure integrated with the housing of the electronic device itself, and in order to simplify the mounting and improve the waterproof effect, it is preferable that the casing 10 is the housing of the electronic device itself, for example, when the electronic device is a mobile phone, the casing 10 is a mobile phone housing 10, and when the electronic device is a tablet, the casing 10 is a tablet housing.

As shown in fig. 2, the waterproof switch module 20 includes a circuit board 21 and an electronic switch 22, the electronic switch 22 is disposed on the circuit board 21, the circuit board 21 is integrally formed with the casing 10, and the electronic switch 22 is disposed at the key position 10a.

The waterproof switch module 20 is a relatively sealed whole body with excellent waterproof performance, and the circuit board 21 on the waterproof switch module is used as an electronic switch 22 for connecting a control terminal in the electronic equipment and the key position 10a so as to realize corresponding function control on the electronic equipment. In this application, further with circuit board 21 and casing 10 integrated into one piece back for even soak between button 30 and the electronic equipment gap, can not dip in electronic equipment yet, guaranteed the waterproof performance of preferred, ensure the normal work of electronic equipment. And so, saved the operation of equipment silica gel circle and switch button, saved manpower and materials, simultaneously, also can not influence the button of electronic equipment itself and feel because of the existence of silica gel circle.

In the above integrally formed structure, the circuit board 21 and the housing 10 are integrally formed by injection molding in a film, so that a gap is not generated at the joint of the circuit board 21 and the housing 10, thereby achieving a better waterproof effect. In the embodiment of the application, the casing 10 is a plastic casing or a metal casing, the specific material of the casing is determined according to the requirement of the electronic device, the circuit board 21 is firstly positioned in an injection mold in the injection molding process, and then the casing 10 is molded through plastic injection or metal injection, so that the casing 10 and the circuit board 21 are integrated, and the installation steps between the subsequent circuit board 21 and the casing 10 are saved while the waterproof effect is improved.

In addition, in order to ensure the position stability of the circuit board 21 in the forming process, positioning holes for injection positioning are provided on the circuit board 21, optionally, the number of the positioning holes is determined according to the structures of the circuit board 21 and the housing 10, as long as the stability of the circuit board 21 is ensured, specifically, in the forming process, the positioning holes are used as positioning columns for penetrating through a mold to position the circuit board 21. In this embodiment, two positioning holes are disposed on the key circuit board 211 at intervals to accurately position the whole waterproof switch module 20.

In this application, circuit board 21 is flexible circuit board 21 to be connected with the control mainboard among the electronic equipment, electronic switch 22 then is the dome switch, and it itself can realize corresponding functional control through pressing, ensures that waterproof switch module 20 itself has excellent waterproof performance, and in addition, electronic switch 22 itself can kick-back after pressing, so also need not other button assembly structure, has simplified the equipment.

As shown in fig. 2, in an embodiment of the present application, the circuit board 21 includes a connection circuit board 212 and a key circuit board 211, one end of the connection circuit board 212 is connected to the key circuit board 211, the other end of the connection circuit board 212 is connected to a control end of the electronic device, and the electronic switch 22 is disposed on the key circuit board 211; the key circuit board 211 and the housing 10 are integrally formed.

The key circuit board 211 is a structure for arranging the electronic switch 22, and the connection circuit board 212 is used for transmitting control signals, in this application, the key circuit board 211 and the connection circuit board 212 are an integrated structure, and the control end of the electronic device is a control main board in the electronic device. Since the connection circuit board 212 is located in the device, only the sealing between the key circuit board 211 and the housing 10 needs to be ensured, and therefore, the installation of the electrical components in the electronic device is not affected by only integrally molding the key circuit board 211 and the housing 10.

Specifically, the key circuit board 211 is disposed side by side with the casing 10 and extends along the structure of the casing 10, so that the key circuit board 211 and the casing 10 are integrally formed, for example, in the case that the casing 10 is a side edge of the electronic device, the key circuit board 211 also extends along the side edge of the electronic device. The connection circuit board 212 may be configured to have a specific bending shape according to the positions of the control board and the key circuit board 211 in the electronic device, so as to ensure stable connection and simplified structure.

As shown in fig. 1, in an alternative embodiment of the present application, the key circuit board 211 is embedded in the housing 10 during the process of integrally forming the circuit board 21 and the housing 10. Therefore, the key circuit board 211 can be further prevented from being soaked to influence the use, and the overall waterproof effect of the electronic equipment is improved. In another alternative embodiment, the key circuit board 211 is located on a side of the casing 10 facing the inside of the electronic device, so as to improve the waterproof effect of the electronic device as a whole.

In an alternative embodiment of the present application, as shown in fig. 1, there is one electronic switch 22 and one corresponding key position 10a, and the waterproof structure for keys is suitable for electronic devices requiring only one key.

In another optional embodiment of the present application, there are a plurality of electronic switches 22, a plurality of key positions 10a, and a plurality of electronic switches 22 and a plurality of key positions 10a are in one-to-one correspondence. For example, the number of the electronic switches 22 is two, and the number of the key positions 10a is also two, which is suitable for electronic devices requiring two keys, the number of the electronic switches 22 is three, and the number of the corresponding key positions 10a is also three, which is suitable for electronic devices requiring three keys, and so on, and thus, the details are not repeated.

In addition, the waterproof structure of the key further includes a waterproof sheet 23, the waterproof sheet 23 has at least a portion located at the key position 10a, and the portion of the waterproof sheet 23 located at the key position 10a is provided on the circuit board 20 and surrounds the periphery of the electronic switch 22.

Therefore, the water body can be further prevented from immersing into the gap of the electronic switch 20, and the normal application of the electronic switch 20 in control is ensured. Optionally, the waterproof sheet 23 is a silicone sheet.

In this application, waterproof sheet 23 only encloses the periphery of locating electronic switch, and in other embodiments, waterproof sheet 23 still can further cover on electronic switch 20, and in addition, waterproof sheet still can coat in the holistic surface of waterproof switch module 20 as required, or coat in the holistic surface of this button waterproof construction to further improve water-proof effects.

As shown in fig. 1, in addition, the waterproof structure of the key further includes a button 30, the housing 10 is further provided with a button slot 10b, the button position 10a is located at the bottom of the button slot 10b, the electronic switch 22 faces the button slot 10b, the button 30 is located at the button slot 10b, and the contact point of the button 30 abuts against the electronic switch 22.

The button 30 is a structure mounted on the casing 10 and used as a structure for the user to control the electronic switch 22 by pressing, and specifically, the button 30 includes a pressing block and a contact point, and the contact point is provided on a side of the pressing block facing the electronic device and abuts against the electronic switch 22.

The button groove 10b is a groove body for installing the button 30 on the casing 10, the side wall of the button groove 10b is provided with a limiting groove, the side edge of the corresponding button 30 is provided with a limiting block, and the limiting block is arranged in the limiting groove to ensure that the button 30 only slides in the button groove 10b, so that the button 30 is prevented from being separated from the button groove 10b.

In the present application, the button 30 is fitted into the button slot 10b to ensure that the button 30 is stably mounted on the casing 10.

As shown in fig. 1, in the embodiment of the present application, at least one button slot 10b is provided, and the slot bottom of each button slot 10b corresponds to at least one button 10a.

That is, the plurality of electronic switches 22 can be simultaneously controlled by one button 30, and for example, in the case where the electronic device is a mobile phone, the button 30 is a button 30 for controlling the volume of the electronic device, and different controls are realized when the upper portion and the lower portion are pressed. In the present application, the number of the button slots 10b is two, the number of the button positions 10a and the number of the electronic switches 22 are three, the button positions 10a correspond to the electronic switches 22 one by one, one button position 10a is arranged at the bottom of one button slot 10b, the corresponding button 30 only has one contact point, two button positions 10a are arranged at the bottom of the other button slot 10b, and the corresponding button 30 has two contact points.

As shown in fig. 3 and 4, the present application also provides an electronic device including a waterproof key structure as described above.

After the electronic equipment applies the key waterproof structure, the key waterproof structure of the electronic equipment is better, and the corresponding structural assembly at the key is reduced.

In this application, under the condition of the shell of the electronic device itself of the casing 10, the key circuit board 211 of the waterproof switch module 20 is only located on one side of the casing 10, so as to facilitate molding, and under the condition that the buttons 30 need to be set on both sides of the casing 10, a plurality of waterproof switch modules 20 integrally molded with the casing 10 can be correspondingly set, which is not repeated.

The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications and equivalents of the subject matter of the present application, which is intended to be covered by the claims and their equivalents, or which are directly or indirectly applicable to other related arts are intended to be included within the scope of the present application.

Claims

1. A waterproof structure for a key, comprising:

the key position is arranged on the machine shell;

2. The waterproof structure for the key of claim 1, wherein the circuit board comprises a connection circuit board and a key circuit board, one end of the connection circuit board is connected with the key circuit board, the other end of the connection circuit board is connected with a control end of an electronic device, and the electronic switch is arranged on the key circuit board; the key circuit board and the casing are integrally formed.

3. The waterproof structure for push-button switch according to claim 1, wherein there are a plurality of said electronic switches, and a plurality of said push-buttons, and a plurality of said electronic switches and a plurality of said push-buttons are in one-to-one correspondence.

4. The waterproof structure of any one of claims 1 to 3, further comprising a waterproof sheet having at least a portion at the key position, the portion at the key position of the waterproof sheet being provided on the circuit board and surrounding the periphery of the electronic switch.

5. The waterproof structure for key set of any one of claims 1 to 3, further comprising a button, wherein the housing further comprises a button slot, the button is located at the bottom of the button slot, the electronic switch faces the button slot, the button is located at the button slot, and the contact point of the button abuts against the electronic switch.

6. The waterproof structure for push buttons of claim 5, wherein there is at least one button slot, and the slot bottom of each button slot corresponds to at least one button.

7. The waterproof key structure of claim 5, wherein said button fits into said button slot.

8. The waterproof structure for a keypad according to any one of claims 1 to 3, wherein the circuit board is provided with positioning holes for injection positioning.

9. The waterproof structure for keys according to any one of claims 1 to 3, wherein the case is a plastic case or a metal case.

10. An electronic device characterized by comprising the waterproof structure for a key according to any one of claims 1 to 9.