TWI407883B - Waterproof plug and electronic device for using the same - Google Patents

Abstract

The invention discloses a waterproof plug for preventing the water along the flexibility circuit board inflow the inner of electronic device. The waterproof includes a first main body and a second main body, the first main body and the second main body are formed by insert molding. The first main body defines a first groove and the second main body defines a second groove, the first main body matches with the second main body, the first groove corresponds to the second groove.

Description

Waterproof plug and electronic device using the same

The present invention relates to a waterproof plug and an electronic device using the waterproof plug, and more particularly to a flip-type electronic device using the waterproof plug.

At present, electronic devices such as mobile phones generally have a waterproof design to prevent water from entering the interior of the electronic device and damaging the electronic device when the electronic device is dropped into the water. The waterproof design on the electronic device mainly has the waterproof design of the button and the waterproof design of the flexible terminal board. Among them, the waterproof design of the flexible wiring board is mainly applied to the flip type electronic device. The flip-type electronic device comprises a body and a cover that can be rotated and opened at one end of the body, the cover body and the body are connected by a hinge, and the cover body and the circuit integration unit on the body are connected by a flexible wiring board. The flexible wiring board passes through the through hole of one of the main body, and after the hinge is rotated, the through hole of one of the cover body enters the inside of the cover body, thereby achieving communication between the circuit integration unit on the cover body and the circuit integration unit on the body. Since the flexible wiring board penetrates into the body and the cover body respectively, when the mobile phone is dropped in the water, the water is easily flowed into the cover body and the body of the electronic device from the cover body and the through hole in the body along the flexible wiring board. Thus, the waterproof design of the cover and the through hole for the flexible wiring board on the body is also extremely important for the overall waterproof design of the electronic device.

The waterproof design of the conventional through hole is generally inserted into the through hole. The waterproof plug is a rubber body, and a clamping hole is formed in the middle portion for the flexible wiring board to pass through, and the peripheral wall of the clamping hole is clamped. Hold the flexible terminal block. However, the waterproof plug has poor waterproof performance, and moisture can still flow into the inside of the cover or body of the electronic device along the clamping hole. In addition, the strength of the waterproof plug is low, in assembly to pass It is not easy to assemble when the hole is used.

In view of the above, it is necessary to provide a waterproof plug with good waterproof performance and high strength.

In addition, it is also necessary to provide an electronic device to which the waterproof plug is applied.

a waterproof plug for preventing moisture from flowing into the housing along the flexible wiring board of the electronic device, the waterproof plug comprising a first body and a second body, wherein the first body and the second body are respectively formed by insert molding, A first groove is defined in the first body, and a second groove is defined in the second body. The first body is engaged with the second body, and the first groove is opposite to the second groove.

An electronic device using the waterproof plug includes a casing, a waterproof plug, a flexible wiring board and a plurality of waterproof oil, and a through hole is defined in the casing, and the waterproof plug is disposed in the through hole. The waterproof oil fills the first groove and the second groove, and the flexible wiring board is sandwiched between the first body and the second body and passes through the space formed by the first groove and the second groove .

Compared with the prior art, the first body and the second body of the waterproof plug are formed by insert molding. The forming method is a method in which the metal piece and the plastic are integrally formed, and the strength of the first body and the second body can be improved. The strength of the waterproof plug is improved; the flexible wiring board is not only clamped by the first body and the second body, moisture is not easily entered into the casing along the flexible wiring board, and due to the first groove and the second recess The tank is filled with the waterproof oil, and the moisture can be completely blocked by the waterproof oil, and the waterproof performance is good.

100‧‧‧Waterproof plug

22‧‧‧Second Main Body

10‧‧‧ first subject

222‧‧‧ second plane

12‧‧‧ First main body

224‧‧‧second groove

122‧‧‧ first plane

226‧‧‧second bulge

124‧‧‧First groove

228‧‧‧Second containment area

126‧‧‧First bulge

300‧‧‧shell

1262‧‧‧ gap

30‧‧‧Hinged end

128‧‧‧First containment area

32‧‧‧through hole

1282‧‧‧ accommodating space

40‧‧‧Flexible terminal block

14‧‧‧First end edge

42‧‧‧First connection

142‧‧‧ Periphery

44‧‧‧second connection

144‧‧‧ receiving end

50‧‧‧Second metal sheet

16‧‧‧First metal sheet

120‧‧‧Clamping port

20‧‧‧Second subject

1 is a schematic exploded view of a waterproof plug according to a preferred embodiment of the present invention; FIG. 2 is a schematic view of a metal sheet in the waterproof plug shown in FIG. 1; FIG. 3 is a schematic view of the waterproof plug shown in FIG. 4 is a schematic view showing a state in which a waterproof plug of the preferred embodiment of the present invention is assembled to an electronic device casing; FIG. 5 is a schematic view showing a state in which the waterproof plug of the preferred embodiment of the present invention is assembled to an electronic device casing; A schematic view of a metal sheet used in a waterproof plug produced by a method, and FIG. 7 is an overall intent of a waterproof plug manufactured by another method of the present invention.

Referring to FIG. 1 , a waterproof plug 100 includes a first body 10 and a second body 20 .

The first body 10 includes a first body portion 12 and a first end edge 14 formed at one end of the first body portion 12. The first body portion 12 includes a first plane 122. The first plane 122 extends to the first end edge 14 to form the first body 10 into a T-shaped plane. A first recess 124 is defined in the first plane 122. The first recess 124 is a rectangular recess extending through the two ends of the first body portion 12. A plurality of first protrusions 126 are formed in the first recess 124. The first protrusions 126 are in a rectangular shape. Each of the first protrusions 126 extends to the two sides of the first recess 124 and is configured. The sidewalls of the first recess 124 are connected, and each of the first protrusions 126 does not protrude from the first plane 122, and is spaced apart from the first plane 122 by a predetermined distance. The plurality of first protrusions 126 divide the first groove 124 into a plurality of first receiving areas 128.

The second body 20 has the same structure as the first body 10 , and the second body 20 includes a second body portion 22 and a second end edge 24 formed at one end of the second body portion 22 . The second body portion 22 includes a second plane 222 and a second recess 224 formed on the second plane 222. The second recess 224 is convexly provided with a plurality of second protrusions 226. The plurality of second protrusions The second recess 224 defines a plurality of second receiving regions 228 corresponding to the first receiving regions 128.

Referring to FIG. 2, the first body 10 is formed by an insert molding method, and a first metal piece 16 is provided. The first metal piece 16 is placed in a cavity of a mold (not shown). Then, the molten plastic is injected into the cavity, and the plastic will be combined with the first metal piece 16 to form the first body 10. The strength of the first body 10 can be enhanced, and the injected plastic can be selected to have a certain elastic material, so that the surface layer of the first body 10 has a certain elasticity. The second body 10 is also formed by the same manufacturing method as the first body 10.

Referring to FIG. 3 , the first body 10 and the second body 20 are oppositely fitted to form the waterproof plug 100 . The first plane 122 of the first body 10 and the second plane 222 of the second body 20 are correspondingly bonded. The first recess 124 is opposite to the second recess 224, and each of the first protrusions 126 is opposite to the corresponding second protrusion 226 and a gap is formed between the first protrusion 126 and the second protrusion 226. 1262. Each of the first receiving areas 128 is opposite to the corresponding second receiving area 228 and defines an accommodating space 1282. The first end edge 14 of the first body 10 cooperates with the second end edge 24 of the second body 20 to form a peripheral edge 142. Correspondingly, one end of the first body end 16 opposite to the first end edge 14 and one end of the second body 20 opposite the second end edge 24 form a receiving end 144.

Referring to FIG. 4, a housing (eg, body) 300 of an electronic device includes a hinged end 30 for mounting a hinge (not shown). The hinged end 30 defines a through hole 32, and the shape of the through hole 32 The shape of the receiving end 144 of the waterproof plug 100 is substantially corresponding to the receiving end 144 of the waterproof plug 100. A flexible terminal block 40 for connecting a circuit of the electronic device housing 300 to another housing (not shown, such as a cover) includes a first connecting end 42 and a second connecting end 44, the first connecting end 42 is for connection to circuitry within housing 300 for connection to circuitry within another housing.

Referring to FIG. 5, when the waterproof plug 100 is assembled on the housing 300, first, a waterproof oil (not shown) is provided. The waterproof oil may be a thick body, and the waterproof oil is separately filled into the first body 10. The first receiving portion 128 and the second receiving portion 228 of the second body 20 are then fitted together with the first body 10 and the second body 20 to form the waterproof plug 100, and the flexible wiring board 40 is clamped thereto. Between the gaps 1262, the flexible terminal block 40 is abutted by the first protrusion 126 and the second protrusion 226. Then, the receiving end 144 of the waterproof plug 100 is placed into the through hole 32 of the housing 300, because the receiving end 144 The surface layer has a certain elasticity, and since the waterproof plug 100 has a certain strength, the receiving end 144 can be conveniently pressed into the through hole 32, so that the receiving end 144 forms an interference fit with the through hole 32. In order to prevent moisture from flowing into the inside of the casing 300 along the side wall of the through hole 32.

Referring to FIG. 6 and FIG. 7 , it can be understood that the waterproof plug 100 can be formed by another method. The first body 10 and the second body 20 can be integrally connected by a second metal piece 50 by insert molding. The first body 10 is connected to one end of the second body 20. A clamping opening 120 is formed between the first body 10 and the second body 20, and the clamping opening 120 can facilitate assembly of the flexible wiring board 40. After the clamping port 120 is closed, the waterproof plug 100 formed by the first body 10 and the second body 20 is formed to be identical to each other. When the waterproof plug 100 is manufactured by the method, the waterproof oil is first filled into the first receiving area 128 of the first body 10 and the second receiving area 228 of the second body 20, and then the clamping opening 120 is closed. To clamp the flexible wiring board 40, the flexible wiring board 40 is abutted by the first protrusion 126 and the second protrusion 226. Finally, the receiving end 144 of the waterproof plug 100 is placed in the through hole 32 of the housing 300.

By adopting the waterproof plug 100, the flexible wiring board 40 is not only clamped by the first protrusion 126 and the second protrusion 226, and moisture does not easily enter the housing 300 along the flexible wiring board 40, and The accommodating space 1282 is filled with the tarpaulin, and the moisture can be completely blocked by the tarpaulin. Thus, a double protection is formed, and moisture cannot enter the casing 300 along the flexible wiring board 40.

It can be understood that the first protrusion 126 in the first groove 124 can be omitted, and accordingly the second protrusion 226 in the second groove 224 can be omitted, that is, the first groove 124 and the second The recesses 224 are respectively filled with waterproof oil and then relatively mated to clamp the flexible wiring board 40.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and equivalent modifications or variations made by those skilled in the art in accordance with the spirit of the present invention are It should be covered by the following patent application.

100‧‧‧Waterproof plug

144‧‧‧ receiving end

10‧‧‧ first subject

20‧‧‧Second subject

12‧‧‧ First main body

22‧‧‧Second Main Body

122‧‧‧ first plane

222‧‧‧ second plane

124‧‧‧First groove

224‧‧‧second groove

126‧‧‧First bulge

226‧‧‧second bulge

128‧‧‧First containment area

228‧‧‧Second containment area

14‧‧‧First end edge

Claims (8)

A waterproof plug for preventing moisture from flowing into the casing along the flexible wiring board of the electronic device, wherein the waterproof plug comprises a first body and a second body, and the first body and the second body are a metal piece The first body is connected to one end of the second body, the first body is defined with a first groove, and the second body is provided with a second groove. The main body cooperates with the second body, and the first groove is opposite to the second groove. The waterproof plug of claim 1, wherein the first groove is formed with a plurality of first protrusions, and the second groove is formed with a plurality of second protrusions corresponding to the number of the first protrusions. The plurality of first protrusions are opposite to the corresponding plurality of second protrusions and are formed with a gap for passing through the flexible wiring board of the electronic device. The waterproof plug of claim 2, wherein the plurality of first protrusions divide the first groove into a plurality of first receiving areas, and the plurality of second protrusions divide the second groove into a plurality of second receiving areas, wherein the first main body and the second main body are combined with each other, and each of the first receiving spaces and the corresponding one of the second receiving spaces forms an accommodating space for accommodating the electronic device. Waterproof oil. The waterproof plug of claim 1, wherein the first body comprises a first body portion, the first body portion comprises a first plane, and the first groove is formed on the first plane The first groove penetrates both ends of the first body portion. The waterproof plug of claim 1, wherein the second body comprises a second body portion, the second body portion includes a second plane, and the second groove is formed on the second plane And penetrates both ends of the second body portion. An electronic device, the improvement comprising: the electronic device comprising a housing, as in claims 1-6 A waterproof plug, a flexible wiring board and a plurality of waterproof oils, wherein a through hole is formed in the housing, the waterproof plug is disposed in the through hole, and the waterproof oil fills the first groove and a second groove, the flexible wiring board is sandwiched between the first body and the second body and passes through a space formed by the first groove and the second groove. The electronic device of claim 6, wherein the first recess is formed with a plurality of first protrusions, and the second recess is formed with a plurality of second protrusions corresponding to the number of the first protrusions. The plurality of first protrusions are opposite to the corresponding plurality of second protrusions and are formed with a gap, and the flexible wiring board passes through the gap and the first protrusion and the second protrusion abut the flexible wiring board. The electronic device of claim 7, wherein the plurality of first protrusions divide the first groove into a plurality of first receiving areas, and the plurality of second protrusions divide the second groove into a plurality of second receiving areas, wherein the first body and the second body are combined, and each of the first receiving spaces and the corresponding one of the second receiving spaces form an accommodating space, and the waterproof oil is filled in the accommodating space .