JP2000295133A - Earphone jack waterproof structure for portable radio machine and its water proof method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and inexpensively take the waterproof measure of an earphone jack and to secure the quality reliability of a radio function by blocking a leaking part where water intruded into the earphone jack leaks with a blocking member. SOLUTION: When the installation of a waterproof cap 48 to a hole part 46 is forgotten, water (rainwater) intruded from the hole part 46 intrudes into an earphone jack 3 through a plug insertion hole part 31 being the inner hole part of a bolt member 5. In the earphone jack 3, an opening part 30 is completely blocked by an earphone jack sheet 34 and the joint of the earphone jack 3 and a printed board 32 is completely blocked by adhesive. Thus, the water intruded into the earphone 3 is prevented from leaking outside and it is prevented from touching a main printed board 38 and electronic parts mounted on the substrate 38 with the water leaking outside. Thus, the quality reliability of a radio function can be secured and the machine can be used even on a rainy day.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable wireless device, and more particularly, to a waterproof structure and a waterproofing method for an earphone jack in a commercial portable wireless device.

[0002]

2. Description of the Related Art In general, portable radios, especially business-use radios, are frequently used even in the rain, so waterproofing is an essential condition.

However, waterproofing of an earphone jack as waterproofing of a portable wireless device is performed by fitting a waterproof cap into a hole of a top cover so as to close a plug insertion hole which is an inner hole of a bolt member of the earphone jack. Was done by that.

That is, as shown in FIG. 9, a hole 62 is provided in a top cover 61 mounted on a top portion of a case (not shown), and a bolt of an earphone jack 63 is provided in the hole 62. The upper end of the plug insertion hole 65 which is the inner hole of the member 64 is located concentrically.

[0005] The waterproof cap 66 is attached to the mounting portion 6.
7 is a waterproof cap mounting portion 6 provided on the top cover 61.
8 and attached to the top cover 61. The waterproof cap 66 is detachably mounted in the hole 62, and the hole 62 is closed.

[0006] The earphone is used by removing the waterproof cap 66 from the hole 62 and inserting an earphone plug from the hole 62 into a plug insertion hole 65 which is an inner hole of the bolt member 64.

[0007]

However, in the case of using earphones, since the waterproof cap 66 is removed from the hole 62, the user has to forget to attach the earphones. When the waterproof cap 66 is treated with a high degree of violence, the waterproof cap 66 may be broken at the hinge 69 and lost, and the hole 62 may be left open.

In such a case, water (rainwater) that has entered through the hole 62 enters the inside of the earphone jack 63 through the plug insertion hole 65 that is the inner hole of the bolt member 64. Due to its structure, the earphone jack 63 has an opening portion 70 on the bottom surface. Therefore, water that has entered the earphone jack 63 leaks outside, and the leaked water leaks to the main printed circuit board and the main printed circuit board. There has been a problem that the quality reliability of the wireless function is reduced by contacting electronic components or the like mounted on the board.

The present invention has been made in view of the above problems, and a first object of the present invention is to prevent infiltration into equipment even if rainwater enters the earphone jack. It is an object of the present invention to provide an earphone jack waterproof structure of a portable wireless device that can contribute to ensuring quality reliability of a wireless function.

A second object of the present invention is to provide a portable wireless device which can easily and inexpensively take waterproof measures for an earphone jack and contribute to ensuring the quality and reliability of wireless functions. It is to provide an earphone jack waterproofing method.

[0011]

In order to achieve the first object, a waterproof structure for an earphone jack of a portable radio according to the present invention is arranged such that a plug insertion hole of the earphone jack is closed with a waterproof cap. The waterproof structure of the earphone jack of the portable wireless device is configured such that a leaking portion of the earphone jack where water intruding into the earphone jack leaks is closed by a closing member.

With this configuration, if the user forgets to attach the waterproof cap, or if the waterproof cap is torn and lost, water enters the inside of the earphone jack through the plug insertion hole. In this case, since the leak location is closed by the closing member, the water that has entered the earphone jack does not leak to the outside.

As described above, even if water (rainwater) enters the earphone jack, it is possible to prevent water from entering the inside of the device, so that the quality and reliability of the wireless function can be ensured, and the portable wireless device can be used. Can be used even on rainy days.

According to another aspect of the present invention, there is provided an earphone jack waterproofing method for a portable wireless device according to the present invention, wherein the earphone jack housing mounted on a printed circuit board has a waterproof surface on an opening. Attach the sheet, bend the part of the waterproof sheet except for the closed part of the opening to the housing side, attach it to the surface of the housing, close the opening with the waterproof sheet, and join the earphone jack to the printed circuit board. By applying an adhesive over the entire circumference, the joint is closed.

Therefore, it is possible to easily and inexpensively take waterproof measures for the earphone jack, thereby contributing to ensuring the quality reliability of the wireless function.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The waterproof structure of an earphone jack of a portable wireless device according to the present invention is a waterproof structure of an earphone jack of a portable wireless device in which a plug insertion hole of an earphone jack is closed with a waterproof cap. In addition, the earphone jack is configured so as to close a leak portion of the earphone jack where water that has entered into the earphone jack leaks with a closing member.

With this configuration, if the user forgets to attach the waterproof cap, or if the waterproof cap is torn and lost, water will enter the inside of the earphone jack through the plug insertion hole. In
Because the leak point is closed by the closing member,
Water that has entered the earphone jack will not leak outside.

As described above, even if rainwater enters the earphone jack, it is possible to prevent water from infiltrating into the device, so that the quality and reliability of the wireless function can be ensured, and the portable wireless device can be used even on a rainy day. Can be used.

According to a second aspect of the present invention, there is provided an earphone jack waterproof structure for a portable wireless device in which a plug insertion hole of an earphone jack mounted on a printed circuit board is closed with a waterproof cap. Attaching a waterproof sheet to the opening of the housing of the earphone jack, closing the opening, and applying an adhesive over the entire periphery of the joint of the earphone jack to the printed circuit board. The joint is closed.

With this configuration, if the user forgets to attach the waterproof cap, or if the waterproof cap is torn and lost, water will enter the inside of the earphone jack through the plug insertion hole. In
Since the opening is completely closed by the waterproof sheet, and the joint between the earphone jack and the printed circuit board is also completely closed by the adhesive, water that has entered the earphone jack is No longer leaks.

As described above, even if rainwater enters the earphone jack, it is possible to prevent water from infiltrating into the inside of the device, so that the quality and reliability of the wireless function can be ensured, and the portable wireless device can be used even on a rainy day. Can be used.

According to a third aspect of the present invention, there is provided a method for waterproofing an earphone jack of a portable wireless device, wherein the waterproof sheet is attached to a surface of an earphone jack housing mounted on a printed circuit board with an opening. The portion excluding the closed portion of the opening is bent toward the housing, attached to the surface of the housing, the opening is closed with a waterproof sheet, and the adhesive is applied over the entire periphery of the joint between the earphone jack and the printed circuit board. By applying, the joint is closed.

Therefore, it is possible to easily and inexpensively take measures for waterproofing the earphone jack, which can contribute to securing the quality reliability of the wireless function.

According to a fourth aspect of the present invention, there is provided a method for waterproofing an earphone jack of a portable wireless device, the method comprising: attaching a waterproof sheet to a surface of an earphone jack housing mounted on a printed circuit board having an opening. A first portion in which both sides of the waterproof sheet sandwiching the opening closing portion are bent toward the housing and attached to the surface of the housing, and the opening closing portion and a part of each of the both sides are raised to form a rising portion. Waterproof sheet bending process, and the rising part of the opening closed part is bent toward the housing side,
A second waterproof sheet folding step of attaching the rising portion of the opening closing portion to the other surface portion of the housing, folding the rising portions of both side portions, and opening these both side portions to the outside, Fold both sides open inward,
The method includes a third waterproof sheet bending step of sticking to another surface portion of the housing, and an adhesive applying step of applying an adhesive over the entire periphery of a joint between the earphone jack and the printed circuit board.

Therefore, a waterproof sheet is attached to the surface of the earphone jack housing with the opening, and
Fold both sides of the waterproof sheet sandwiching the opening closed part toward the housing, and paste it on the surface of this housing,
A part of each of the opening closing part and both side parts is raised, and then the rising part of the opening closing part is bent toward the housing side, and the rising part of the opening closing part is attached to another surface of the housing. At the same time, fold up each rising part of both sides, open these both sides out,
Next, the both side parts opened to the outside are folded inward and attached to the other surface of the housing, and then the adhesive is applied over the entire periphery of the joint between the earphone jack and the printed circuit board. The eyes can be closed and the earphone jack can be waterproofed.

As described above, waterproof measures for the earphone jack can be easily and inexpensively taken, which can contribute to ensuring the quality reliability of the wireless function.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view of a portable radio having an earphone jack waterproof structure according to the present invention, with a part thereof omitted.

The portable wireless device includes a case 1, and an earphone jack mounting hole 2 is provided in a top portion 1 A of the case 1. And the top part 1 of this case 1
A is provided with an earphone jack 3 using an earphone jack mounting hole 2. The case 1, the top cover 45, and the front cover 53 constitute a wireless device main body.

As shown in FIG. 2, the earphone jack 3 has a housing 4 made of an insulating material. The housing 4 has a bolt member mounting surface (upper surface) 4A, a mounting surface (front surface) 4B, and a mounting surface. It has left and right side surfaces (left and right surfaces) 4D and 4E with respect to a facing surface portion (rear surface portion) 4C facing the mounting surface portion 4B, and a facing surface portion facing the bolt member mounting surface portion 4A. (Lower surface) is open. As shown in FIG. 4, a mounting hole 6 is provided in the bolt member mounting surface 4A of the housing 4, and terminal locking holes 7 are formed in the left and right side surfaces 4D and 4E.
8 are formed, and notches 9 and 10 are formed at both ends of the mounting surface 4B.

On the bolt member mounting surface 4A of the housing 4, a metal bolt member 5 having a terminal plate 11 fixed to the base is fixedly mounted by penetrating the base end 5A into the mounting hole 6. A contact portion 5B provided at a base end portion 5A of the bolt member 5 protrudes into the housing 4. The bolt member 5 is a hollow body, and an inner hole of the bolt member 5 has a plug insertion hole. The section 31 is formed. And
A lead portion 12 is formed on the terminal plate 11, and the lead portion 12 is inserted into the cutout portion 9 of the mounting surface portion 4B and protrudes forward.

The housing 4 has one terminal 13 and the other terminal 14. That is, as shown in FIG. 6, one terminal 13 is provided with a pair of contact pieces 16 at one end of a plate-shaped terminal body 15, and a locking projection 16 a at an outer edge of the contact piece 16. The other end of the terminal body 15 is provided with a lead portion 17.

As shown in FIG. 5, the other terminal 14 is provided with a terminal body 18 which is formed by bending a plate material into a substantially rectangular shape on the side and has a spring property. Is formed with a contact portion 19 which is bent into a side surface, and a locking projection 20 is formed on the left and right edges of the base 18b of the terminal main body 18. A lead portion 18a is formed to be bent at a base portion 18b.

The other terminal 14 is housed in the housing 4, the base 18b of the terminal body 18 is in contact with the inner surface of the mounting surface 4B of the housing 4, and the locking projections 20 are left and right. Are locked in the terminal locking holes 7 of the side surfaces 4D, 4E. The one terminal 13 is inserted into the housing 4 from an opening 30 in a facing surface (lower surface) facing the bolt member mounting surface 4 </ b> A of the housing 4, and an outer edge of the pair of contact pieces 16. Locking projection 16
a is locked in the terminal locking holes 8 of the left and right side portions 4D and 4E, and a contact portion 16A at the tip of a pair of contact pieces 16 is provided.
Is in contact with a contact portion 5B provided on the base end portion 5A of the bolt member 5. The plate-shaped terminal body 1 of one terminal 13
5 closes the opening 30 of the housing 4 about half,
The lead portion 17 is provided with the notch 1 at the lower edge of the mounting surface 4B.
0 and protrudes forward.

Therefore, the opening 30 of the earphone jack 3 is not closed, and the plug insertion hole 31 which is the inner hole of the bolt member 5 communicates with the opening 30 via the internal space of the housing 4. I have.

The earphone jack 3 configured as described above has the mounting surface 4B in contact with the printed circuit board 32 as shown in FIG. Lead portions 1 of terminals 13 and 14
7 and 18a are inserted into the through holes 32a and mounted on the printed circuit board 32 by soldering.

The earphone jack 3 mounted on the printed circuit board 32 is provided with a housing by attaching an earphone jack sheet 34 as a waterproof sheet (closing member) as shown in FIGS. 7 (1) to 7 (5). The fourth opening 30 is closed.

That is, the earphone jack sheet 34
Is a rectangular adhesive sheet obtained by applying an adhesive to one surface of a synthetic resin film.
As shown in FIGS. 7 (1) and 7 (2) (a waterproof sheet attaching step). Next, as shown in (3) of FIG. 7, the left and right portions 34a and 34b, which are both sides of the opening closing portion 34c of the earphone jack sheet 34, are bent toward the housing 4, and the left and right sides of the housing 4 are bent. Right side 4D, 4
E, and a part (a rising part) 34a of each of the left and right parts 34a, 34b and the opening closing part 34c.
-1, 34b-1, and 34c-1 are in a state of being raised (first waterproof sheet bending step).

Next, as shown in FIG. 7 (4), the rising portion 34c-1 of the opening closing portion 34c of the earphone jack sheet 34 is bent toward the housing 4, and the center of the rising portion 34c-1 is bent. Affixed to an opposing surface (rear surface) 4C opposing the mounting surface 4B of the housing 4,
The left and right sides of the rising portion 34c-1 are left and right portions 34a, 34b.
To the rising portions 34a-1 and 34b-1. In this case, the rising portions 3 of these left and right portions 34a, 34b
4a-1 and 34b-1 are opened outward (second waterproof sheet bending step).

Next, as shown in FIG. 7 (5), the rising portions 34a-1, 34a of the left and right portions 34a, 34b opened to the outside.
4b-1 is folded inward to form the rising portion 3 of the right portion 34b.
4b-1 is attached to an opposing surface (rear surface) 4C opposing the mounting surface 4B of the housing 4, and a left portion 34a is placed thereon.
Is attached (third waterproof sheet bending step).

Next, as shown in FIG. 7 (6), an adhesive 37 as a closing member is applied over the entire periphery of the joint 36 between the mounting surface 4B of the earphone jack 3 and the printed board 32. The joint 36 is sealed (adhesive application step).

As described above, in the earphone jack 3, the opening 30 is completely closed by the earphone jack sheet 34, and the joint 36 between the earphone jack 3 and the printed circuit board 32 is also bonded to the adhesive 37. Will be completely closed.

The earphone jack unit J configured as described above is housed in the housing recess 39 provided on the upper part of the main printed circuit board 38, and
It is connected to the main printed circuit board 38 via two flexible portions 40 and a connector 41.

When the main printed circuit board 38 is accommodated in the case 1, a washer 42 is fitted to the bolt member 5 of the earphone jack 3, and the bolt member 5 is attached to the earphone jack of the top portion 1 A of the case 1. Mounting hole 2
The nut member 43 is screwed into a portion of the bolt member 5 which is inserted from the inside of the case 1 and penetrates through the earphone jack mounting hole 2 and protrudes upward. Earphone jack 3 is case 1
Is fixed to the top side portion 1A.

A packing 44 is attached to the top part 1A of the case 1 so as to cover the nut member 43, and a top cover 45 made of synthetic resin is attached to the top part 1A of the case 1. I have. This top cover 4
5, a packing mounting portion (not shown) is formed on the back side of the top portion 45A, and a circular hole 46 is formed in the packing accommodating portion. Further, a waterproof cap mounting portion 47 formed of a split groove is formed on the top side portion 45A of the top cover 45.

When the top cover 45 is mounted on the top portion 1 A of the case 1, the packing 44 is accommodated in the packing accommodating portion, and the upper end of the bolt member 5 is concentric with the hole 46. positioned.

As shown in FIG. 1, the waterproof cap 48 has a waterproof cap body 48A inserted into the hole 46 and the upper end of the bolt member 5, and the waterproof cap body 48A has a hinge. Mounting part 50 through the part 49
And a locking block portion 51 are formed. The waterproof cap 48 is mounted on the top cover 45 by inserting the mounting portion 50 into the waterproof cap mounting portion 47, and the waterproof cap 48 removably covers the hole 46 of the top cover 45. I have.

Next, the use and waterproofing of the earphone jack 3 configured as described above will be described.

When the earphone jack 3 is used, the waterproof cap 48 is removed from the hole 46 of the top cover 45, and the plug insertion hole 31 which is an inner hole of the bolt member 5 is inserted through the hole 46 as shown in FIG. The earphone plug P. By this insertion, one contact portion 53 of the earphone plug P comes into contact with the bolt member 5, and the other terminal 14 is connected to the constricted portion 55 of the other contact portion 54 of the earphone plug P.
Are in contact with each other.

If the waterproof cap 48 is forgotten to be attached to the hole 46, or if the waterproof cap 48 is broken by the hinge 49 and lost due to repeated use of the portable radio, the hole 46 In order to keep the earphone jack 3 open, water (rainwater) that has entered through the hole 46 passes through the plug insertion hole 31 which is an inner hole of the bolt member 5.
Get inside.

However, in the earphone jack 3,
The opening 30 is completely closed by the earphone jack sheet 34, and the joint 36 between the earphone jack 3 and the printed circuit board 32 is also completely closed by the adhesive 37. The water that has entered the inside 3 does not leak to the outside, and it is possible to prevent the water that has leaked outside from coming into contact with the main printed board 38 and the electronic components (not shown) mounted on the board 38.

In the earphone jack waterproofing method, the earphone jack sheet 34 is attached to the surface of the housing 4 of the earphone jack 3 where the opening 30 is provided, and then the left and right sides of the opening closing portion 34c of the earphone jack sheet 34 are sandwiched. The right portions 34a and 34b are bent toward the housing 4 and attached to the left and right side portions 4D and 4E of the housing 4, and the opening closing portion 34c and the left and right portions 34a,
34b, and the rising portion 34c-1 of the opening closing portion 34c is bent toward the housing 4 to form the rising portion 34c- of the opening closing portion 34c.
1 is attached to an opposing surface portion (rear surface portion) 4C opposing the mounting surface portion 4B of the housing 4, and left and right portions 34 are attached.
a, 34b, the respective rising portions 34a-1, 34b-
1 and open these left and right portions 34a, 34b out, then open the left and right portions 34a, 34b
Is folded inward and affixed to an opposing surface portion (rear surface portion) 4C opposing the mounting surface portion 4B of the housing 4, and then an adhesive 37 is applied over the entire periphery of the joint 36 between the earphone jack 3 and the printed circuit board 32. The joint 36 is sealed by coating.

Therefore, since the earphone jack 3 is completely waterproofed, even if rainwater enters the earphone jack 3, it can be prevented from infiltrating into the device, and the quality and reliability of the wireless function can be improved. This ensures that the portable radio can be used even on rainy days.

Depending on the shape of the earphone jack 3, the opening 30 may be closed by the earphone jack sheet 34 or the adhesive 37 may be applied only to the joint 36 between the earphone jack 3 and the printed circuit board 32. In some cases, waterproof treatment may be completed.

[0055]

As described above, according to the waterproof structure of the earphone jack of the portable wireless device according to the present invention, when the waterproof cap is forgotten, or when the waterproof cap is torn and lost. However, water intrudes into the earphone jack through the plug insertion hole. However, in this earphone jack, since the leaking portion of the water is closed by the closing member, the opening of the earphone jack is also prevented. Part is completely closed by the waterproof sheet, and the joint between the earphone jack and the printed circuit board is also completely closed by the adhesive). No leakage.

As described above, even if rainwater enters the earphone jack, it is possible to prevent water from infiltrating into the inside of the device, so that the quality and reliability of the wireless function can be ensured, and the portable wireless device can be used even on a rainy day. Can be used.

Further, according to the earphone jack waterproofing method for a portable wireless device according to the present invention, it is possible to easily and inexpensively take measures for waterproofing the earphone jack, which contributes to securing the quality reliability of the wireless function. Will be able to do it.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a portable wireless device having an earphone jack waterproof structure according to the present invention, with a part thereof omitted.

FIG. 2 is a perspective view of the earphone jack seen from obliquely above.

FIG. 3 is a perspective view of the earphone jack turned upside down and viewed obliquely from above.

FIG. 4 is a vertical sectional view of an earphone jack.

FIG. 5 is a perspective view of a terminal member of the earphone jack.

FIG. 6 is a perspective view of a terminal member of the earphone jack.

7 (1) to (6) are explanatory diagrams of a procedure for bonding an earphone jack sheet to an earphone jack and application of an adhesive.

FIG. 8 is a sectional view showing a state in which an earphone plug is inserted into an earphone jack.

FIG. 9 is an exploded perspective view of a portable wireless device in a partially omitted state for explaining closure of a hole by a waterproof cap.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Case (radio main body) 2 Earphone jack mounting hole 3 Earphone jack 4 Housing 5 Bolt member 6 Mounting hole 11 Terminal plate 13 One terminal member 14 The other terminal member 30 Opening 31 Plug insertion hole 32 Printed circuit board 34 Earphone jack sheet (waterproof sheet) (closing member) 36 Seam 37 Adhesive (closing member)

Claims (4)

[Claims] An earphone jack waterproof structure for a portable wireless device in which a plug insertion hole of an earphone jack is closed with a waterproof cap, wherein water leaking into the earphone jack of the earphone jack leaks. A waterproof structure for an earphone jack of a portable wireless device, wherein a portion is closed by a closing member. 2. A waterproof structure for an earphone jack of a portable wireless device in which a plug insertion hole of an earphone jack mounted on a printed circuit board is covered with a waterproof cap, wherein a waterproof sheet is provided on an opening of a housing of the earphone jack. Is attached, and the opening is closed, and the joint between the earphone jack and the printed circuit board is coated with an adhesive over the entire circumference to close the joint. Earphone jack waterproof structure of portable radio. 3. A waterproof sheet is attached to a surface of an earphone jack mounted on a printed circuit board having an opening, and a portion of the waterproof sheet excluding an opening closed portion is bent toward the housing, and the housing is bent. Close the opening with the waterproof sheet by sticking to the surface of the,
A method for waterproofing an earphone jack of a portable wireless device, characterized in that the joint is closed by applying an adhesive over the entire periphery of the joint between the earphone jack and the printed circuit board. 4. A waterproof sheet attaching step of attaching a waterproof sheet to a surface of an earphone jack housing mounted on a printed circuit board having an opening, wherein both side portions sandwiching an opening closed portion of the waterproof sheet are provided on the housing side. A first waterproof sheet bending step of bending and affixing to the surface portion of the housing to raise a part of each of the opening closing portion and the both side portions to form a rising portion; The rising portion is bent toward the housing, and the rising portion of the opening closing portion is attached to another surface of the housing, and the rising portions of the both sides are folded, and both sides thereof are folded. A second waterproof sheet folding step of opening the part to the outside, and folding the two side parts opened to the outside inward and pasting the other part of the housing on the other surface part A portable wireless device comprising: a third waterproof sheet bending step for attaching; and an adhesive applying step for applying an adhesive over the entire circumference of a joint between the earphone jack and the printed circuit board. Earphone jack waterproofing method.