JPH05159826A - Water-proof structure of jack part - Google Patents

Abstract

PURPOSE:To improve assembling efficiency by combining a packing with a deep-dish cabinet half in such a state that the end of a jack supported on a circuit board is pressed into an elastic hole in the packing. CONSTITUTION:The end 16a of a jack 16 supported on a circuit board 14 is forcibly fitted into a fitting hole 23 in a thick elastic material packing 17. In such a state, when a packing 17 is fitted to a cabinet half 3 including an exposed hole 6, a surrounding flexible wall 7, etc., from the opening side, it is mounted in such a way as to put a hood 19 in close contact with the half 3 via engagement grooves 22, 24. A water-proof structure can be assembled with one-directional movement so as to improve assembling work efficiency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel waterproof structure for a jack portion. Specifically, it is intended to provide a new waterproof structure of a jack portion which has a good assembling property.

[0002]

2. Description of the Related Art In a device that is likely to be exposed to water drops such as rain drops when used outdoors, it is necessary to waterproof the exposed hole of the cabinet where the tip of the jack is exposed to the outside.

The conventional waterproof structure of the jack portion is as shown in FIG.

Reference numeral a denotes a cabinet, which is composed of a cabinet half b in the shape of a deep rectangular plate and a back cover c for covering the opening surface of the cabinet half b.

A circuit board d is supported by the cabinet half b, and a jack e is supported by the circuit board d.

An exposure hole g is formed in the side wall f of the cabinet half b so that the tip of the jack e is exposed to the outside of the cabinet a.

Reference numeral h is a waterproof packing, and the fitting portion i fitted into the exposed hole g of the cabinet a and the flange portion j protruding from one surface of the fitting portion i are integrally made of a material having rubber elasticity. The fitting portion i is formed with a fitting hole k into which the tip of the jack e is inserted.

The waterproof packing h has a fitting part i.
Is fitted into the exposed hole g of the cabinet a from the inside, and the tip of the jack e is press-fitted into the fitting hole k of the waterproof packing h.

In this way, the space between the tip of the jack e and the exposed hole g of the cabinet a is waterproofed.

[0010]

However, in the waterproof structure of the jack portion described above, first, the waterproof packing h is moved in the direction of the arrow A to be inserted into the cabinet half b, and then in the direction of the arrow A. Is moved in the direction of an arrow B orthogonal to and the fitting part i is fitted into the exposed hole g of the cabinet half b to support the waterproof packing h on the cabinet half b.

Then, the circuit board d supporting the jack e is moved in the direction of arrow A to be inserted into the cabinet half b, and then moved in the direction of arrow B to move the tip of the jack e into the fitting hole of the waterproof packing h. Insert into k.

As described above, in the above-mentioned conventional waterproof structure of the jack portion, the waterproof packing h is attached to the cabinet half b and the circuit board d supporting the jack e.
All of the mounting to the cabinet half b must be carried out by moving them in the direction of arrow A and then in the direction of arrow B, and the operation direction during assembly is complicated and the workability is poor.

[0013]

In order to solve the above-mentioned problems, the waterproof structure of the jack portion of the present invention has a surrounding wall except the opening side of the cabinet half at a position surrounding the above-mentioned exposed hole on the inner surface of the cabinet half. And an engaging edge protruding toward the exposed hole is formed on the surrounding wall, and the waterproof packing is made of a material having rubber elasticity and has a thick plate shape so that the tip of the jack is press-fitted. A main part having a fitting hole for fitting and having an engaging groove for engaging the engaging edge formed on the peripheral end surface excluding one end, and one end edge of the main part is substantially perpendicular to the main part It is formed integrally with the eaves portion projecting in the direction.

The circuit board is inserted into the cabinet half from the opening side with the tip of the jack fitted in the fitting hole of the waterproof packing, and the engagement groove of the waterproof packing is engaged with the engagement edge of the cabinet half. The eaves portion is brought into contact with the open end of the surrounding wall and the inner surface of the cabinet half.

[0015]

Therefore, in the waterproof structure of the jack portion of the present invention, the assembling operation to the cabinet half can be performed in only one direction, and the assembling workability is extremely good.

[0016]

The details of the waterproof structure of the jack portion of the present invention will be described below with reference to the embodiments shown in the accompanying drawings.

In the illustrated embodiment, the present invention is applied to the waterproof structure of the jack portion of the specific low power band transceiver 1.

Reference numeral 2 denotes a cabinet, which comprises a cabinet half 3 in the shape of a deep rectangular plate and a back cover 4 attached to the cabinet half 3 so as to cover the opening surface 3a on the back side thereof.

A laterally long exposure hole 6 is formed in the side wall 5 of the cabinet half 3, and the exposure hole 6 in the inner surface of the side wall 5 is formed.
A ridge 6a is formed along the opening edge.

Further, a surrounding wall 7 is formed on the inner surface of the side wall 5 so as to surround the projection 6a except the opening surface side of the cabinet half 3. The amount of protrusion of the surrounding wall 7 from the side wall 5 is slightly larger than the amount of protrusion of the protrusion 6a. Also,
The right and left sides are in contact with the outer edges of the ridges, and are joined to the front wall 8 of the cabinet half 3 on the side opposite to the opening side.

A rib 9 is projected from the side surface of the protrusion 6a on the side of the opening surface of the cabinet half 3 and both ends of the rib 9 are on the side wall 5 end of the end portion of the surrounding wall 7 on the opening surface side of the cabinet half 3 side. By this, the engaging edge 10 which is elongated in the left-right direction when viewed from the opening surface side of the cabinet half 3 is formed.

An engaging edge 11 is formed on the edge of the surrounding wall 7 on the side opposite to the side wall 5 so as to project inward.

12 is a chassis in the shape of a square frame,
Mounting pieces 13, 13, 13 are provided so as to project, and these mounting pieces 1
Insertion holes 13a, 13a, 13a are formed in 3, 13, 13.

The circuit board 14 is supported by the chassis 12.

15, 15 and 15 are cabinet halves 3
Is a boss portion projecting from the inner surface of the front wall 8 of each of the boss portions 15, 15, 15 and has screw holes 15a, 15
a and 15a are opened.

Reference numerals 16 and 16 denote jacks supported at positions near one side edge of the circuit board 14, and cylindrical tip portions 16a and 16a thereof project from the side edge of the circuit board 14.

Reference numeral 17 denotes a waterproof packing made of rubber, and a plate-shaped main portion 18 and an eave portion 19 projecting perpendicularly to the main portion are integrally formed at one side edge of the main portion 18. Consists of

The main part 18 is composed of an inner part 20 and an outer part 21 which is slightly smaller than the inner part 20, and a side edge where the eaves part 19 is connected to the base of the outer part 21, that is, the boundary with the inner part 20. The engaging groove 22 is formed except for.

Further, the main portion 18 has two fitting holes 23, 2
3 are formed side by side.

An elongated U-shaped engaging groove 24 is formed on the surface of the eaves portion 19 on the main portion side, and both ends of the engaging groove 24 are connected to both ends of the engaging groove 22.

Then, the eaves portion 19 is fitted in the fitting hole 23 of the main portion 18 in the direction in which the eaves portion 19 projects toward the side wall 5 of the cabinet half 3.
The tip portions 16a, 16a of the jacks 16, 16 are fitted to the jack 23. In this way, the waterproof packing 17 is first supported by the jacks 16, 16 supported by the circuit board 14.

Then, the chassis 12 supporting the circuit board 14 is inserted into the cabinet half 3 and the mounting pieces 13, 13, 13 are placed on the end faces of the boss portions 15, 15, 15. When the circuit board 14 is inserted into the cabinet half 3, the engagement edge 11 of the cabinet half 3 is engaged with the engagement groove 22 of the waterproof packing 17, and finally the engagement end of the cabinet half 3 is reached. Engagement groove 24 whose edge 10 is provided in the eaves portion 19 of the waterproof packing 17.
To be engaged.

Then, the screws 25, 25, 25 are inserted into the insertion holes 13a, 13 of the mounting pieces 13, 13, 13 of the chassis 12, respectively.
a, 13a is inserted and the screw holes 1 of the boss portions 15, 15, 15 are inserted.
5a, 15a, and 15a are screwed together. As a result, the circuit board 14 is connected to the cabinet half 3 via the chassis 12.
And the gap between the exposed hole 6 and the tip portions 16a, 16a of the jacks 16, 16 is waterproofed by a waterproof packing 17.

Then, the back cover 4 is attached to the cabinet half 3 to cover the open surface of the cabinet half 3.

As described above, the waterproof packing 17 is previously prepared.
Is attached to the jacks 16 and 16, and then the chassis 12 is inserted into the cabinet half 3 and the screws 25,
Since the assembling is completed by the work of fastening 25, 25 all from one direction, the workability of the assembling is very good.

[0036]

As is apparent from the above description, the waterproof structure of the jack portion of the present invention has a box-shaped cabinet, a circuit board arranged in the cabinet, a jack supported by the circuit board, and a waterproof packing. And the cabinet has cabinet halves in the shape of a basin,
An exposure hole for exposing the jack to the outside of the cabinet is formed in the cabinet half, and a surrounding wall is formed at a position surrounding the above-mentioned exposure hole on the inner surface of the cabinet half except for the opening side of the cabinet half, and the exposure hole is formed in the surrounding wall. The waterproof packing is made of a material with rubber elasticity and has a thick plate shape with a fitting hole that press-fits the tip of the jack. A main portion in which an engaging groove for engaging the engaging edge is formed on the peripheral end surface excluding the above, and an eaves portion projecting at an end edge of the main portion in a direction substantially perpendicular to the main portion. It is formed integrally, and the circuit board is inserted into the cabinet half from the opening side with the tip of the jack fitted in the fitting hole of the waterproof packing, and the engaging groove of the waterproof packing is engaged with the engaging edge of the cabinet half. Engage with the eaves surrounding the wall Wherein the open end and is abutted against the inner surface of the cabinet half.

Therefore, in the waterproof structure of the jack portion of the present invention, the assembling operation to the cabinet half need only be an operation in one direction, and the assembling workability is extremely good.

The specific shapes and structures shown in the above embodiments are merely examples for embodying the present invention, and the technical scope of the present invention is limitedly interpreted by these. It is not something that will be done.

[Brief description of drawings]

FIG. 1 is an enlarged exploded perspective view of a main part showing an example of implementation of a waterproof structure of a jack part of the present invention.

FIG. 2 is a perspective view showing an external appearance of a device to which the waterproof structure of the jack portion of the invention is applied.

FIG. 3 is an enlarged sectional view of a main part.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

5 is a cross-sectional view taken along the line VV of FIG.

FIG. 6 is an inner side view showing an enlarged main part of the cabinet half.

7 is a cross-sectional view taken along the line VII-VII of FIG.

8 is a sectional view taken along the line VIII-VIII in FIG.

FIG. 9 is an enlarged perspective view of the waterproof packing seen from below.

FIG. 10 is an enlarged front view of the waterproof packing.

11 is a sectional view taken along line XI-XI in FIG.

12 is a sectional view taken along line XII-XII in FIG.

FIG. 13 is an enlarged cross-sectional view of a main part showing an example of a conventional waterproof structure of a jack part.

[Explanation of symbols]

 2 cabinet 3 cabinet half 6 exposed hole 7 surrounding wall 11 engaging edge 14 circuit board 16 jack 16a jack tip 17 waterproof packing 18 main part 19 eaves 22 engaging groove 23 fitting hole

Claims (1)

[Claims] 1. A cabinet comprising a box-shaped cabinet, a circuit board arranged in the cabinet, a jack supported by the circuit board, and waterproof packing, and the cabinet includes a cabinet half having a deep dish shape, Is formed with an exposure hole for exposing the jack to the outside of the cabinet, and an enclosure wall is formed at a position surrounding the above-mentioned exposure hole on the inner surface of the cabinet half, except for the opening side of the cabinet half, and the enclosure wall protrudes toward the exposure hole side. The engaging edge is formed, and the waterproof packing is made of a material with rubber elasticity and is a thick plate shape.It has a fitting hole for press-fitting the tip of the jack and the circumference excluding one end. A main part having an engaging groove for engaging the engaging edge is formed on an end surface, and an eave part projecting in a direction substantially perpendicular to the main part is integrally formed at one end edge of the main part. Consists of Insert the circuit board into the cabinet half from the opening side with the tip of the jack fitted in the fitting hole of the waterproof packing, and engage the engaging groove of the waterproof packing with the engaging edge of the cabinet half. The waterproof structure of the jack part, characterized in that the abutment is brought into contact with the open end of the surrounding wall and the inner surface of the cabinet half.