WO2020155797A1

WO2020155797A1 - Waterproof structure of key and electronic device

Info

Publication number: WO2020155797A1
Application number: PCT/CN2019/119529
Authority: WO
Inventors: 程超; 马志远
Original assignee: 掌阅科技股份有限公司; 深圳市掌阅科技有限公司
Priority date: 2019-01-28
Filing date: 2019-11-19
Publication date: 2020-08-06
Also published as: CN209216844U

Abstract

A waterproof structure of a key and an electronic device. The waterproof structure of a key comprises an accommodating portion (100) and a closing portion (200). The accommodating portion (100) is provided with a base plate (110) and an edge enclosure (120) that is formed vertically extending from the edge of the base plate (110), such that the accommodating portion (100) forms a cavity (112) that is open at one side, and the closing portion (200) is used for covering the opening. The waterproof structure of the key further comprises a key module, and the key module comprises a key body (310), a key detection structure (320), and a signal transmission structure (330). The key detection structure (320) is placed in the cavity (112), while the key body (310) and the signal transmission structure (330) are respectively connected to the key detection structure (320) in the cavity (112), and extend into the cavity (112) from outside of the cavity (112). Gaps between the signal transmission structure (330), the edge enclosure (120) and the closing portion (200) are sealed.

Description

Button waterproof structure and electronic equipment

Cross reference of related applications

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office with application number 2019201450530 and titled "Key Waterproof Structure and Electronic Equipment" on January 28, 2019, the entire content of which is incorporated into this application by reference.

Technical field

The present disclosure relates to the technical field of electronic device keys, and in particular to a key waterproof structure and electronic equipment.

Background technique

With the continuous advancement of technology, smart electronic devices have become indispensable tools in people's daily life. A traditional electronic device usually includes a casing and a button located on the casing, and the normal use of the electronic device is realized by operating the button.

However, many electronic devices currently have a problem that due to improper use by users, moisture enters the circuit board in the casing through the keys, causing damage to the electronic device.

Utility model content

The technical problem to be solved by the present disclosure is to provide a button waterproof structure and electronic device that can prevent moisture from entering the casing through the button.

To achieve the purpose of the present disclosure, the present disclosure adopts the following technical solutions:

A key waterproof structure includes a accommodating part and a sealing part. The accommodating part is provided with a bottom plate and an edge enclosure formed vertically extending from the edge of the bottom plate, so that the accommodating part forms a cavity with an opening on one side, and the closing part is used to cover the opening , The button waterproof structure also includes:

Button module, the button module includes a button body, a pressing detection structure and a signal transmission structure. The pressing detection structure is placed in the cavity. The button body and the signal transmission structure are respectively connected to the pressing detection structure in the cavity and extend from the outside of the cavity to the cavity. in vivo;

The gaps between the signal transmission structure and the edge enclosure and the closed portion are all sealed.

In the above key waterproof structure, the gaps between the signal transmission structure and the edge enclosure and the closed part are sealed, which can effectively prevent moisture from entering the main board connected to the signal transmission structure through the key body.

In one of the embodiments, the enclosure on the side of the edge enclosure close to the key body is provided with a first through hole adapted to the size of the key body, and the key body abuts the pressing detection structure through the first through hole.

In one of the embodiments, the edge enclosure is provided with a groove on the top of the enclosure on the side close to the signal transmission structure, and the groove is provided with waterproof foam matching the size of the groove, and the signal transmission structure extends outward through the groove , And the waterproof foam is attached to the signal transmission structure.

In one of the embodiments, the waterproof foam and the signal transmission structure are bonded by double-sided tape.

In one of the embodiments, the gap between the signal transmission structure and the closed portion, and between the top of the enclosure with the groove and the closed portion are sealed by glue.

In one of the embodiments, a second through hole is provided on the side fence of the edge fence close to the signal transmission structure, the signal transmission structure extends outward through the second through hole, and the side wall of the second through hole is connected to the signal transmission structure. Structure fit.

In one of the embodiments, the signal transmission structure is attached to the side wall of the second through hole through an annular sealing ring.

In one of the embodiments, the top of the enclosure provided with the second through hole and the closed portion are sealed by glue.

In one of the embodiments, the button body includes a button cap, the pressing detection structure includes a button shrapnel, a conductive base is provided on the button shrapnel, and the conductive base is used to fit the pressing position of the button cap. The signal transmission structure includes an FPC main body, and the FPC main body and The button shrapnel is glued and fixed.

To achieve the purpose of the present disclosure, the present disclosure also adopts the following technical solutions:

An electronic device includes the above-mentioned button waterproof structure.

Figure overview

FIG. 1 is a schematic structural diagram of a waterproof structure of a button in an embodiment;

2 is a schematic diagram of the structure of an electronic device in an embodiment;

FIG. 3 is a schematic structural diagram of a waterproof structure of a button in another embodiment;

Fig. 4 is a schematic structural diagram of an electronic device in another embodiment.

Preferred embodiment of the present disclosure

In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to relevant drawings. The preferred embodiment of the present disclosure is shown in the drawings. However, the present disclosure can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present disclosure. The terms used in the specification of the present disclosure herein are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. In the description of the present disclosure, "several" means at least one, such as one, two, etc., unless otherwise specifically defined.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or a central element may also exist. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not mean the only implementation.

In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "vertical", "horizontal", "inner", and "outer" are based on the drawings shown The method or positional relationship is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure .

Refer to FIG. 1, which is a schematic structural diagram of a waterproof structure of a button in an embodiment.

A key waterproof structure includes a accommodating part 100 and a closing part 200. The accommodating part 100 is provided with a bottom plate 110 and an edge enclosure 120 formed perpendicularly extending from the edge of the bottom plate 110, so that the accommodating part 100 forms an open cavity 112 , The sealing part 200 is used to cover the opening, and the waterproof structure of the button further includes:

The key module includes a key body 310, a press detection structure 320, and a signal transmission structure 330. The press detection structure 320 is placed in the cavity 112. The key body 310, the signal transmission structure 330 and the press detection in the cavity 112 respectively The structure 320 is connected and extends from the outside of the cavity 112 to the inside of the cavity 112;

The gaps between the signal transmission structure 330 and the edge enclosure 120 and the closing portion 200 are all sealed.

Among them, the button waterproof structure is mainly used in electronic devices, such as mobile phones, tablet computers, smart bracelets, and e-readers. See FIG. 2. FIG. 2 is a schematic diagram of the structure of the electronic device in an embodiment, including the accommodating part 100, The closing portion 200 and the key module. The accommodating portion 100 is located on the side wall of the electronic device housing 10 and is a part of the electronic device housing 10. The closing portion 200 is a part of the cover plate of the electronic device. The key module includes a key body 310, The detection structure 320 and the signal transmission structure 330. The key body 310 may include a key cap outside the accommodating part 100 and a conductive base disposed on the key cap and located inside the accommodating part 100. The press detection structure 320 includes a key spring and a signal transmission structure 330 It includes an FPC main body, the button spring is fixedly connected to one end of the FPC main body, and the other end of the FPC main body extends from the accommodating part 100 to the outside of the accommodating part 100 and is connected to the motherboard in the electronic device housing 10. The working principle of the button module is: when the electronic device needs to be operated by the button module to realize the corresponding function, the conductive base can trigger the button shrapnel by pressing the button cap, and then the button shrapnel and the FPC body are connected, and the FPC body will press the button information It is fed back to the main board of the electronic device to realize the corresponding function of the button.

Specifically, the key module can be a volume key, a lock screen key, or a power key of an electronic device.

In this embodiment, the gaps between the signal transmission structure 330 and the edge enclosure 120 and the closed portion 200 are all sealed, that is, between the signal transmission structure 330 and the edge enclosure 120 near the top of the enclosure on the side of the signal transmission structure 330 Seal, and seal between the signal transmission structure 330 and the sealing portion 200.

In the above-mentioned key waterproof structure, the gaps between the signal transmission structure 330 and the edge enclosure 120 and the closing portion 200 are sealed, which can effectively prevent moisture from entering the main board connected to the signal transmission structure 330 through the key body 310.

In one embodiment, the edge fence 120 is provided with a first through hole 121 on the side close to the button body 310, and the button body 310 passes through the first through hole 121 and the pressing detection structure 320. Abut.

In this embodiment, the accommodating portion 100 is provided with a bottom plate 110 and an edge enclosure 120 formed perpendicularly extending from the edge of the bottom plate 110. The edge enclosure 120 can be configured as a square enclosure, that is, it includes four-sided enclosures. The enclosure on the side of the key body 310 and the enclosure on the side close to the signal transmission structure 330 are two-sided enclosures that are arranged directly opposite, and the enclosure on the side close to the key body 310 is provided on the side wall of the electronic device and is close to the enclosure on the side of the key body 310. The stop is provided with a first through hole 121 adapted to the size of the key body 310, a part of the key body 310 extends to the outside of the side wall through the first through hole 121, and the key body 310 is located in the other part of the accommodating part 100 and press detection If the structure 320 is abutted, the user can press the key body 310 on the side wall of the electronic device to make the key body 310 trigger the pressing detection structure 320, and transmit the key information to the main board of the electronic device to realize the corresponding key function.

In one embodiment, as shown in FIG. 2, the edge enclosure 120 is provided with a groove 122 on the top of the enclosure on the side close to the signal transmission structure 330, and the groove 122 is provided with a waterproof foam matching the size of the groove 122 400, the signal transmission structure 330 extends outward through the waterproof foam 400, and the waterproof foam 400 is attached to the signal transmission structure 330.

In this embodiment, taking the bottom plate 110 of the accommodating part 100 close to the water surface as an example, when water enters the accommodating part 100, water will form at the bottom of the accommodating part 100. A groove 122 is provided on the top of the enclosure, and the signal transmission structure 330 is connected to the pressing detection structure 320 in the accommodating portion 100 through the groove 122, which can further improve the waterproof capability of the button waterproof structure, that is, only when the accommodating portion 100 is When the height of the accumulated water exceeds the height of the groove 122 on the enclosure, the moisture may enter the main board of the electronic device through the gap between the groove 122 and the signal transmission structure 330; For the waterproof foam 400 adapted to the size of the groove 122, the signal transmission structure 330 extends outward through the groove 122, and the waterproof foam 400 is attached to the signal transmission structure 330 to connect the waterproof foam 122 and the signal transmission structure 330 The gap is sealed to prevent water from entering the main board of the electronic device through the gap between the groove 122 and the signal transmission structure 330.

Specifically, the waterproof foam 400 and the signal transmission structure 330 can be bonded by double-sided tape, but it is not limited to this type of bonding, as long as the gap between the waterproof foam 400 and the signal transmission structure 330 can be completely sealed OK.

In one embodiment, referring to FIG. 3, FIG. 3 is a schematic structural diagram of a button waterproof structure in another embodiment, between the signal transmission structure 330 and the closed portion 200, and the top of the enclosure provided with the groove 122 and the closed portion 200 Between them are sealed with glue 500.

Wherein, since the accommodating portion 100 is located on the side wall of the electronic device housing and is a part of the electronic device housing 10, the closing portion 200 is a part of the cover plate of the electronic device, and the housing 10 and the cover plate of the electronic device are two independent The structure, that is, the cover plate is detachably mounted on the housing 10, resulting in a gap between the housing 10 and the cover plate of the electronic device, which means that there is a gap between the edge enclosure 120 on the receiving portion 100 and the closing portion 200 Because the signal transmission structure 330 is connected to the main board outside the accommodating part 100 through the groove 122 on the edge enclosure 120, it is only necessary to connect the top of the enclosure with the groove 122 and the closing part 200, The gap between the signal transmission structure 330 and the closing portion 200 is sealed to prevent moisture from entering the main board through the gap.

In this embodiment, the signal transmission structure 330 and the closing portion 200, and between the top of the enclosure provided with the groove 122 and the closing portion 200 can be sealed by glue 500, but it is not limited to this bonding method. As long as the gap between the signal transmission structure 330 and the closing portion 200, and between the top of the enclosure provided with the groove 122 and the closing portion 200 can be completely sealed.

In one embodiment, a second through hole is provided on the side fence of the edge fence 120 close to the signal transmission structure 330, the signal transmission structure 330 extends outward through the second through hole, and the sidewall of the second through hole and The signal transmission structure 330 is attached.

Further, a second through hole is provided on the fence on the side of the edge fence 120 close to the signal transmission structure 330, and the second through hole is arranged as far as possible on the top of the fence on the side close to the signal transmission structure 330 to avoid second communication. When the sealing between the side wall of the hole and the signal transmission structure 330 is not complete, and the height of the water accumulated in the accommodating portion 100 exceeds the height of the second through hole on the enclosure, the water passes through the side wall of the second through hole and the signal The gap between the transfer structure 330 enters the main board of the electronic device.

In this embodiment, the edge fence 120 is provided with a second through hole on the fence on the side close to the signal transmission structure 330, and the side wall of the second through hole is attached to the signal transmission structure 330, which can effectively prevent moisture from passing through the first through hole. The gap between the sidewalls of the two through holes and the signal transmission structure 330 enters the main board.

Specifically, the signal transmission structure 330 can be attached to the side wall of the second through hole through an annular sealing ring, but it is not limited to this type of attachment, as long as the signal transmission structure 330 and the side wall of the second through hole can be connected to each other. The gap between the two can be completely sealed.

In one embodiment, the top of the enclosure provided with the second through hole and the closed portion 200 are sealed by glue.

Wherein, since the accommodating portion 100 is located on the side wall of the electronic device housing and is a part of the electronic device housing 10, the closing portion 200 is a part of the cover plate of the electronic device, and the housing 10 and the cover plate of the electronic device are two independent The structure, that is, the cover plate is detachably mounted on the housing 10, resulting in a gap between the housing 10 and the cover plate of the electronic device, which means that there is a gap between the edge enclosure 120 on the receiving portion 100 and the closing portion 200 Because the signal transmission structure 330 is connected to the main board outside the accommodating portion 100 through the second through hole on the edge enclosure 120, it is only necessary to connect the top of the enclosure with the second through hole and the closing portion 200. Sealing in between can prevent moisture from entering the main board through the gap.

In this embodiment, the top of the enclosure provided with the second through hole and the closing portion 200 are sealed by glue, but it is not limited to this type of bonding, as long as the signal transmission structure 330 and the closing portion 200 can be arranged between It is sufficient that the gap between the top of the enclosure with the second through hole and the closed portion 200 can be completely sealed.

In one embodiment, the button body 310 includes a button cap, the press detection structure 320 includes a button shrapnel, the button shrapnel is provided with a conductive base, and the conductive base is used to fit the pressing position of the button cap, and the signal transmission structure 330 includes an FPC main body, FPC The main body is glued and fixed with the button spring.

The key module includes a key body 310, a press detection structure 320, and a signal transmission structure 330. The key body 310 includes a key cap for pressing, and the press detection structure 320 includes a key spring and a conductive base disposed on the key spring. The conductive base is used to adapt to the pressing position of the button cap. The signal transmission structure 330 includes an FPC body. One end of the FPC body is glued and fixed with the button spring, and the other end is connected to the main board through the cavity 112, which solves the problem that the traditional button module will conduct electricity. The base is arranged on the button cap. When there is an assembly tolerance between the button module and the electronic device housing 10, there is some deviation between the button cap and the button spring, which causes the conductive base to not be pressed in the middle position of the button spring, compared to An unbiased button module requires a greater pressing force to make the pressing shrapnel communicate with the FPC body.

Specifically, when the key module is a volume key of an electronic device, and the volume key includes a volume up key and a volume down key, the press detection structure 320 can be set to include two key springs, which are arranged up and down , And the two button elastic pieces are respectively provided with conductive bases, and the user can press the upper and lower positions of the button cap to realize the two corresponding functions of the button.

The present disclosure also provides an electronic device, see FIG. 4, which is a schematic structural diagram of an electronic device in another embodiment, including the above-mentioned button waterproof structure 50, which is installed on the side wall of the electronic device .

The above-mentioned electronic device includes the above-mentioned button waterproof structure 50, which can not only realize the corresponding function of the button, but also can prevent moisture from entering the main board of the electronic device through the button module.

The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present disclosure, and the descriptions are more specific and detailed, but they should not be interpreted as a limitation on the scope of the disclosed patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several modifications and improvements can be made, and these all fall within the protection scope of the present disclosure. Therefore, the scope of protection of the patent of this disclosure should be subject to the appended claims.

Claims

A key waterproof structure includes a accommodating part and a sealing part. The accommodating part is provided with a bottom plate and an edge enclosure formed perpendicularly extending from the edge of the bottom plate, so that the accommodating part forms a cavity with an open side. The part is used to cover the opening, and is characterized in that the button waterproof structure further includes:

A button module, the button module includes a button body, a pressing detection structure and a signal transmission structure, the pressing detection structure is placed in the cavity, the button body, the signal transmission structure and the cavity respectively Press the detection structure to connect and extend from the outside of the cavity to the inside of the cavity;

The gaps between the signal transmission structure and the edge enclosure and the closed portion are all sealed.
The button waterproof structure according to claim 1, wherein the edge fence is provided with a first through hole adapted to the size of the button body on the fence on the side close to the button body, and the button The main body abuts against the pressing detection structure through the first through hole.
The button waterproof structure according to claim 1, wherein the edge enclosure is provided with a groove on the top of the enclosure on the side close to the signal transmission structure, and the groove is provided with a size corresponding to the size of the groove. In a suitable waterproof foam, the signal transmission structure extends outward through the groove, and the waterproof foam is attached to the signal transmission structure.
The button waterproof structure according to claim 3, wherein the waterproof foam and the signal transmission structure are bonded by double-sided tape.
The button waterproof structure according to claim 3, wherein the signal transmission structure and the closed portion, and between the top of the enclosure provided with the groove and the closed portion are sealed by glue.
The button waterproof structure according to claim 1, wherein a second through hole is provided on a side of the edge enclosure close to the signal transmission structure, and the signal transmission structure passes through the second communication structure. The hole extends outward, and the side wall of the second through hole is attached to the signal transmission structure.
7. The button waterproof structure according to claim 6, wherein the signal transmission structure is attached to the side wall of the second through hole through an annular sealing ring.
The key waterproof structure according to claim 6, wherein the top of the enclosure provided with the second through hole and the closed portion are sealed by glue.
The button waterproof structure according to claim 1, wherein the button body includes a button cap, the press detection structure includes a button spring, and the button spring is provided with a conductive base, and the conductive base is used to The pressing position of the button cap is adapted, the signal transmission structure includes an FPC main body, and the FPC main body is bonded and fixed to the button elastic sheet.
An electronic device, characterized by comprising the button waterproof structure according to any one of claims 1-9.