JP2015185433A - Jack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jack which can downsize a portable device, and does not increase the number of components.SOLUTION: A jack JC has a plug storing chamber 110 ranging to a plug insertion port 100, and is equipped with a terminal space for storing a terminal 20 electrically and mechanically connecting with a plug inside. The plug insertion port 100 is provided on a plug insertion hole which has an inclined portion along a side surface shape of a case of a portable device in a thickness direction. The plug insertion surface continues to a flat lower surface 13 to which a circuit substrate connects, a flat upper surface 12 contacting with the case of the portable device, and right and left side surfaces 15 and 14. An opening portion 160 ranging to the terminal space 130 is provided on the upper surface 12, and a slit ranging to the terminal space 130 is provided on the lower surface 13. The terminal 20 is equipped with a fixed portion 200 for assembling to the jack JC, a curved portion extending upward from the fixed portion, and a contacting portion 230 facing the slit at a lower part of the fixed portion 200. The terminal 20 is assembled to the terminal space 130 from the upper surface 12 side.

Description

  The present invention relates to a jack, and more particularly, to a jack having a structure that is airtightly assembled with a case of a portable device.

  In order to ensure the waterproof property of portable equipment, a technique is known in which the housing structure of the jack or the assembly structure of the jack and the case has been devised. For example, according to the technique described in Patent Document 1, a box-shaped storage chamber in which a front and four sides are closed by walls is formed inside a case provided with a plug insertion port of a portable device. The jack is assembled in the accommodation chamber, and finally, the opening opened rearward is closed with a cover plate without any gap. Thus, since the sealed accommodation chamber is formed, the airtightness of the jack is ensured.

  However, in this method, it is necessary to go around the wall constituting the accommodation chamber without any gap around the jack, and in particular, a wall is also required on the bottom surface of the accommodation chamber, which is the mounting surface of the jack. Since the wall is required to have airtightness and strength for constituting the accommodation chamber, a predetermined thickness is ensured, and as a result, the dimension in the thickness direction of the portable device is increased. As a result, in this method, even if the airtightness of the jack portion can be secured, downsizing of the portable device is hindered.

As a method that takes into account the miniaturization of the portable device, particularly in the thickness direction, a method of attaching a waterproof cover component to the housing at the stage of assembling the jack is known. According to this technique, the structure for housing the jack in the housing chamber is not required, and the bottom wall that hinders the downsizing in the thickness direction can be omitted. Therefore, the portable device can be prevented from expanding in the thickness direction.
However, according to this technology, in order to assemble the terminal on the bottom surface of the housing which is the mounting surface of the jack, an opening having a characteristic shape is required, and in order to ensure the airtightness of the bottom surface including this opening. A waterproof cover part with a hermetic lid is attached. As a result, this method increases the number of parts and the number of man-hours for assembly. Further, the thickness of the waterproof cover part itself has a considerable influence on the dimension in the thickness direction.

JP 2012-59660 A

  SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and is intended for at least one of the following, one of which is a structure that can ensure airtightness without hindering downsizing of the portable device in the thickness direction. One is to provide a jack having a structure that can ensure airtightness without increasing the number of parts.

In order to solve the above-described problems, a jack according to the present invention is (1) for housing a plug housing chamber connected to a portable device and connected to a plug insertion port, and a terminal electrically and mechanically connected to the corresponding plug. A jack having a rectangular housing in plan view and the terminal, wherein the plug insertion port is a curved surface having a shape along the inner wall of the side surface of the case of the portable device in the thickness direction. Or provided on a plug insertion surface having an inclined portion including a flat surface, the plug insertion surface being connected to a flat lower surface to which the circuit board is connected, at least a part of a portion contacting the case of the portable device is connected to the flat upper surface, and the left and right side surfaces The upper surface is provided with an opening continuous to the terminal space, the lower surface is provided with a slit continuous to the terminal space, and the terminal is fixed to be attached to the housing. A bending portion extending in one direction from the fixing portion, and a connection portion facing the slit on the opposite side of the fixing portion to the one direction, and the terminal is inserted into the opening from the connection portion side, and is inserted into the terminal space. A jack that has the characteristics of being assembled.

  According to the present invention, the connection portion of the terminal for connecting to the circuit board faces from the slit formed on the lower surface side of the jack. The periphery may be sealed with a sealing material for further improving the airtightness, for example, a thermosetting resin. Further, the upper surface and the front surface of the jack having the opening have a shape that conforms to the shape of the inner wall of the case. Thereby, since the adhesiveness of the joint surface of a jack and a case inner wall increases, a portable apparatus will not be expanded in the thickness direction and the jack excellent in airtightness will be obtained.

  As for the terminal, when the fixing portion is assembled to the slit, the connecting portion faces the lower surface side of the slit, and the bent portion and the contact portion connected to the end of the connecting portion are accommodated in the terminal space. An opening continuous with the terminal space is formed on the upper surface of the housing. A part of the plug housing chamber is exposed from the upper surface to the front surface. A slit is formed on the lower surface so that the connection portion of the terminal faces. The left and right side surfaces and the rear surface are substantially flat walls having no holes or uneven structures.

  The inclination of the front face of the jack may be along the shape of the corresponding inner wall of the case, and may be constituted by a curved surface or a flat surface. Further, the series from the front surface of the jack to the upper surface may be along the shape of the inner wall of the corresponding case. By adopting such a matching inclined structure, the adhesion between the jack and the case is improved.

  More preferably, the jack according to the present invention is (2) for mounting an elastic member for securing airtightness on the entire surface or the peripheral edge of the entire surface from the upper surface to the front surface provided with the plug insertion port. It is a thing of (1) description which has a characteristic in providing a structure.

  According to this invention, the jack to which the elastic member for ensuring the adhesiveness with the corresponding case inner wall is attached from the front surface to the upper surface of the jack is obtained. Thereby, the adhesiveness between the front surface of the jack and the upper wall of the case corresponding to the upper surface is ensured, and as a result, the airtightness of the jack is improved.

  The elastic member may be mounted on the entire front surface and upper surface of the jack, or may be mounted only on the peripheral portion of the entire surface. In addition, the elastic member may be formed in advance in the assembly process, or may be formed in the assembly process in some cases. For example, a viscous liquid or gel-like elastic material may be applied at a predetermined location and then cured at a predetermined location.

  More preferably, in the jack according to the present invention, (3) the front, rear, left, and right walls of the housing having a rectangular structure on the entire surface are rectangular in plan view, and the upper end surface is (2) is characterized in that the surface having a predetermined width comprises a series of smooth walls.

  According to the present invention, since the structure to which the elastic member is mounted has a wall having a predetermined width and a smooth surface, the elastic member can be stably mounted on the entire periphery. Thereby, the adhesiveness between the portion from the front surface to the upper surface of the jack and the corresponding inner wall of the case is ensured, and as a result, the airtightness of the jack is improved.

  More preferably, the jack according to the present invention is (4) described in (2) or (3) characterized in that the elastic member is a silicone rubber.

  According to the present invention, the gap between the front to top surface of the jack and the corresponding inner wall of the case is filled with the silicone rubber. As a result, it is possible to obtain a jack that can be easily assembled and has airtightness with excellent heat resistance.

  More preferably, in the jack according to the present invention, (5) (1) to (4) are filled with a sealing material for ensuring airtightness in a slit formed on the lower surface and facing the connection portion of the terminal. ).

  According to the present invention, since the gap facing the connecting portion on the lower surface of the housing is filled with the sealing material, the jack with airtightness secured without interfering with downsizing in the thickness direction of the portable device in particular. can get. The sealing material may be a thermosetting resin.

FIG. 1 is an exploded perspective view of a jack according to this embodiment of the present invention. FIG. 2 is an external perspective view of the jack. FIG. 3 is an external perspective view of the bottom side of the jack. FIG. 4 is an external perspective view in which the slit on the bottom side of the jack is filled with a sealing material. FIG. 5 is a perspective view showing a state in which the jack is assembled to the case. FIG. 6 is a perspective view showing a state where the jack is assembled to the case. FIG. 7 is a perspective view showing a state where the jack is assembled to the case. FIG. 8 is a side view showing a state where the assembly of the jack to the case is completed. FIG. 9 is a perspective view showing a state where the assembly of the jack into the case is completed.

<Outline of Jack> Jack JC will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a jack according to this embodiment of the present invention. FIG. 2 is an external perspective view of the jack. FIG. 3 is an external perspective view of the bottom side of the jack. FIG. 4 is an external perspective view in which the slit on the bottom side of the jack is filled with a sealing material.
The indicated direction in the explanation follows the direction definition shown in the figure.

  As shown in FIG. 1, the jack JC includes a nonconductive housing 10 made of a synthetic resin and a highly conductive terminal 20 mainly using a copper alloy. In the case of this embodiment, the terminal 20 includes electrode terminals 21, 22, and 23 and holding terminals 24 and 25 for holding corresponding plugs. The electrode terminals 21, 22, and 23 are provided at positions corresponding to the first to third poles of the plug at the normal insertion position. The terminal 20 is fixed to a predetermined position of the housing 10 by a press-fitting method.

  As shown in FIGS. 1 and 2, the housing 10 is a substantially box-like body having a rectangular shape in plan view extending in the front-rear direction, and a necessary space is formed inside. In the side view of the housing 10, the upper and lower surfaces extend in parallel from the rear to the center on both the left and right sides, and the upper surface 12 is curved so that the upper surface 12 is inclined downward as it goes forward. The tip of the upper surface 12 hits a substantially center line of the vertically extending front surface 11 and is continuously connected here.

As shown in FIGS. 1 and 2, the plug housing chamber 110 provided inside the housing 10 has an upper portion that is notched due to the inclination of the upper surface 12, and the front half of the plug housing chamber 110 is exposed. As shown in FIGS. 1 and 2, a terminal space 130 for assembling and fixing the terminal 20 is provided near the left and right side surfaces 14 and 15 on the inner side of the housing 10. The terminal space 130 has a characteristic shape corresponding to the corresponding terminal 20. The terminal 20 includes a bent portion 210 that can be elastically deformed in order to ensure connection reliability, and the entire terminal 20 including the bent portion 210 is accommodated in the terminal space 130. Therefore, the terminal space 130 occupies a relatively large range in the housing 10, and the opening 160 is also formed in the upper surface 12 to be relatively large.

As shown in FIGS. 1 and 2, the terminal space 130 has an opening 160 formed in the upper surface 12. The opening 160 has a structure corresponding to the shape of each of the terminals 21 to 25 and a characteristic outline, and extends in the front-rear direction.
As shown in FIG. 3, the lower surface 13 of the housing 10 is generally flat and has a plateau that is slightly raised at the center. In addition, slits 120 that keep the gap width constant are formed at the left and right edges of the lower surface 13. The slit 120 extends linearly in the front-rear direction, and communicates with the terminal space 130 formed inward from the upper surface 12 of the housing 10 at the back. Thus, the slit 120 and the terminal space 130 form a continuous space.

  As shown in FIGS. 1 and 2, the front surface 11 of the housing 10 is smoothly connected to the upper surface 12 that is inclined downward, the upper half of the plug insertion opening 100 is chipped, and the plug housing chamber 110 is exposed from the lower half. Yes. Further, a part of the terminal space 130 formed at the foremost part is cut off by the front surface 11, and a part of the inside is exposed from there. Although such an exposed portion is generated, the entire peripheral edge portion from the front surface 11 to the upper surface 12 is joined to the inner wall of the case 30 via the silicone rubber 50 with a pressing force. Will be secured.

<Terminal> As shown in FIG. 1, the terminal 20 includes first to third electrode terminals 21, 22, and 23 corresponding to plug electrodes (not shown). In the rear left and right direction, holding terminals 24 and 25 for generating a holding force with respect to the leading portion of the plug at the normal fitting position are provided. As shown in FIG. 1, the holding terminals 24 and 25 include a square frame 240 formed by punching a rolled material of a copper alloy. The holding terminals 24 and 25 are arranged inside the square frame 240 and rearward from the side edge of the front frame. An extending holding piece 250 is provided. The pair of left and right holding pieces 250, 250 are both bent inwardly in a mountain shape at the rear, and sandwich the plug head portion at the normal fitting position at the apex portion thereof.

  As shown in FIG. 1, the holding terminals 24 and 25 are fitted into the slits 120 formed in the housing 10 by the rectangular frame 240 so that the curved holding pieces 250 are accommodated in the terminal space 130. Thereby, the connection part 220 which comprises a part of lower frame is exposed below the lower surface 13 of the housing 10 through the slit 120. The connection part 220 is connected to the circuit board 40 by soldering.

  The terminal space 130 communicates with the plug housing chamber 110 inside the housing 10. As a result, the holding terminals 24 and 25 assembled at the predetermined positions can elastically contact the holding pieces 250 with the top portions of the plugs at the normal fitting positions, and the electrode terminals. 21, 22, 23 can be electrically and mechanically connected to corresponding electrodes of the plug.

  The first terminal 21, the second terminal 22, and the third terminal 23 for electrodes are each provided with a bent portion 210 that extends upward from the upper edge of the rectangular fixing portion 200. The bending portion 210 is curved upward in a mountain shape, and its tip advances downward and changes its direction by 90 degrees and extends forward. The extending tip increases inwardly and reaches the top and has a convex portion. Thus, the first terminal 21, the second terminal 22, and the third terminal 23 for electrodes are all provided with the contact portion 230 that can be elastically displaced at the tip of the bending portion 210. The contact portion 230 is electrically and mechanically connected to the corresponding electrode of the plug in the normal fitting position. The present invention does not limit the shape of the terminal 20 to the shape shown in the present embodiment, and can be changed as appropriate without departing from the spirit of the invention.

  As shown in FIG. 1, the rectangular fixed portions 200 of the first terminal 21, the second terminal 22, and the third terminal 23 for electrodes are fitted into the corresponding slits 120, thereby bending portions 210 and contact portions. 230 is accommodated in the terminal space 130. Thereby, the fixing part 200 press-fitted into the slit 120 of the housing 10 exposes the connection part 220 provided at the tip thereof from the slit 120 to the lower surface 13 of the housing 10.

  <Terminal Assembly Completion> As shown in FIGS. 2 and 3, the jack JC in which the terminal 20 is assembled at a predetermined position of the housing 10 is connected to the slit 120 on the lower surface 13 of the housing 10 so as to correspond to the plate thickness. Is exposed, and a gap is formed between the peripheral surface of the connecting portion 220 and the inner peripheral surface of the slit 120. This gap is sealed with a sealing material 60 as shown in FIG. The sealing material 60 may be a thermosetting resin, and in some cases, an oval rubber packing material may be fitted into the gap. By sealing the gap by any method, the air tightness of the lower surface 13 of the housing 10 is ensured.

  As shown in FIG. 2, the portion from the upper surface 12 to the front surface 11 of the housing 10 is formed with an opening 160 continuous with the plug housing chamber 110 and the terminal space 130. The range in which the openings 160 are formed is a portion from the upper surface 12 to the center line of the front surface 11 and does not reach the peripheral edge portion. As shown in FIG. 2, the peripheral edges of the front surface 11 and the upper surface 12 of the housing 10 have a smooth upper end surface and a predetermined width that are connected to the front wall, the rear wall, and the left and right side walls constituting the housing 10. It consists of a series of walls 180 with

  The wall 180 stretched around the peripheral edge is formed at the same height as the island-shaped plateau having a characteristic outline formed at the center of the housing 10 or slightly higher. It is preferable. In the case of this embodiment, the airtightness of the jack JC is ensured by tightly bonding the peripheral wall 180 to the inside of the corresponding case 30 via the silicone rubber 50 that is an elastic member.

  The wall 180 stretched around the peripheral edge portion is formed so as to follow the shape of the inner wall of the case 30 when the jack JC is assembled at a predetermined position of the case 30. In the case of this embodiment, since the shape of the inner wall of the case 30 is inclined downward as it goes forward, the wall 180 of the jack JC is also inclined so as to follow it. Thus, the airtightness of the joint surface is ensured by matching both corresponding shapes.

As shown in FIG. 2, a silicone rubber 50 formed so as to follow the shape is attached to the wall 180 stretched around the peripheral edge. The silicone rubber 50 is formed by pressure molding of silicone rubber. The silicone rubber 50 is relatively resistant to heat and other corrosive environments as a physical and chemical characteristic of the silicone rubber 50, and has a designable hardness. It is a material suitable as a packing material for electronic equipment. The silicone rubber 50 can divide and reduce the gap formed between the peripheral wall 180 and the corresponding inner wall of the case 30 by its elasticity.
The silicone rubber 50 has a predetermined width and thickness. The width and thickness can be determined by physical factors such as the force pressing the jack JC against the case 30, the rubber hardness, and the required air density, and optimum values are appropriately designed.

  In the present embodiment, the silicone rubber 50 is used for the elastic member, but the present invention is not limited to this, and materials can be selected as appropriate. For example, synthetic rubber such as urethane or elastomer may be selected. Moreover, the silicone rubber 50 may cover not only the peripheral portion but also the entire surface from the front surface to the upper surface of the housing. Furthermore, you may use the double-sided tape in which the base material was waterproof as an elastic member.

  <Assembly of Jack> Assembly of Jack JC to case 30 will be described with reference to the drawings. FIG. 5 is a perspective view showing a state in which the jack according to the present embodiment is assembled to the case. FIG. 6 is a perspective view showing a state where the jack is assembled to the case. FIG. 7 is a perspective view showing a state where the jack is assembled to the case. FIG. 8 is a side view showing a state where the assembly of the jack to the case is completed. FIG. 9 is a perspective view showing a state where the assembly of the jack into the case is completed.

  As shown in FIG. 5, the jack JC is a mounting surface where the lower surface 13 is connected to the circuit board 40. The circuit board 40 may be made of a flexible material such as FPC (Elixable printed circuits). The connection portion 220 exposed on the lower surface 13 of the jack JC is connected to the electrode terminal formed on the circuit board 40 by soldering. At this time, the connecting portion 220 is long in the front-rear direction, so that the mounting strength can be improved. The jack JC is thus fixed at a predetermined position on the circuit board 40.

  The jack JC fixed to the circuit board 40 is assembled to the inner wall of the side surface of the case 30 provided with the plug insertion slot 320 as shown in FIG. On the inner wall of the side surface of the case 30, a mounting pedestal 330 is formed at a position corresponding to the silicone rubber 50. The surface of the base 330 is flat and smooth. The jack JC plug insertion slot 100 assembled at the regular position overlaps the plug insertion slot 320 provided on the side surface 300 of the case 30.

  As shown in FIG. 8, the inner wall of the case side surface 300 is a portion where the front surface 11 of the jack JC and the front half portion of the upper surface 12 are combined, and is configured by a combination of curved surfaces that slightly change in curvature. In securing the adhesion between such curved surfaces, the silicone rubber 50 having elasticity acts effectively and supplements the consistency between the two.

As shown in FIG. 8, the jack JC is pressed upward and forward with respect to the case 30. The generation source of the pressing force may be generated by the overlapping of the engagement pieces provided in the jack JC and the case 30 or may be generated by screw tightening for fixing the case 30 to the jack JC. Also good.
As shown in FIG. 7, in the jack JC assembled to the case 30, the front surface 11 and the opening 160 of the upper surface 12 are all covered with the silicone rubber 50, and airtightness is secured to the surroundings.

  <Principle> By assembling the terminals 20 from the upper surface 12 side of the housing 10, only a small slit 120 is formed on the lower surface 13 side, so that airtightness can be secured relatively easily. Therefore, a highly airtight jack JC that does not hinder downsizing of the portable device can be obtained. The openings 160 such as the plug housing chamber 110 and the terminal space 130 formed on the upper surface 12 side of the housing 10 can be closed by improving the adhesion between the inner wall of the case 30 and the jack JC. Without using a member, it is possible to obtain an airtight jack that does not hinder downsizing.

<effect>
In the jack JC according to this embodiment, since the terminal 20 is inserted from the upper surface 12 side of the housing 10, a narrow slit 120 that can expose the connecting portion 220 of the plate-like piece is formed on the lower surface 13 side of the jack JC. It is only formed. As a result, the sealing means on the lower surface 13 side can be made relatively easy, so that a highly airtight jack JC that does not hinder downsizing can be obtained.

In the jack JC according to the present embodiment, since the close contact structure from the front surface 11 to the upper surface 12 is configured via the silicone rubber 50, even if there is a portion where a gap is generated between the jack JC and the case 30. The portion is closed by the elastically deformable silicone rubber 50. Thereby, Jack JC with which airtightness was ensured is obtained.
The jack JC according to the present embodiment causes the jack JC to be in close contact with the inner wall of the case 30 by the pressing force, so that even if there is a gap between the jack JC and the case 30, the gap is divided. Therefore, the jack JC having good airtightness can be easily obtained.

-Since the jack JC which concerns on this embodiment assembles | attaches the terminal 20 from the upper surface 12 of the housing 10, mounting | wearing of the waterproof cover for closing the opening part by the side of the lower surface 13 required by the prior art becomes unnecessary. As a result, an airtight jack JC with a reduced number of parts and assembly steps can be obtained.
-Jack JC which concerns on this embodiment is a structure which ensures airtightness by ensuring the adhesiveness of the upper surface 12 side. Thereby, even if a part of the front wall forming the terminal space 130 at the forefront of the housing 10 is structurally missing, the jack JC with airtightness is obtained.

The jack JC according to the present embodiment has a structure that ensures airtightness by ensuring the close contact on the upper surface 12 side, so that the position of the terminal 20 provided in the forefront is provided near the front wall of the housing 10. Can do. This makes it relatively easy to ensure the thickness of the corresponding side wall of the case 30, so that the portable device case 30 having a predetermined strength is obtained.
The jack JC according to the present embodiment has a structure in which the silicone rubber 50 is mounted between the jack JC and the case 30 to ensure airtightness, so that the jack JC that can reduce the size of the portable device can be obtained.

-Since the jack JC which concerns on this embodiment is a structure which ensures the airtightness of the jack JC by attaching an elastic member to the peripheral part from the front surface 11 to the upper surface 12, for example, a base material is waterproof both sides A tape can be used for the elastic member. Thereby, since the waterproof tape can be assembled to the jack JC in advance, an airtight jack JC that can be easily assembled to the case 30 is obtained.

[Other Embodiments]
Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the inventive idea.

JC jack 10 Housing 11 Front surface 12 Upper surface 13 Lower surface 14, 15 Left and right side surfaces 16 Rear surface 100 Plug insertion port 110 Plug housing chamber 120 Slit 130 Terminal space 160 Opening portion 180 Wall 20 Terminal 200 Fixing portion 210 Bending portion 220 Connection portion 230 Contact portion 250 Holding piece 30 Case 300 Side surface 310 Upper surface 320 Plug insertion port 330 Base 40 Circuit board 50 Silicone rubber 60 Sealing material (thermosetting resin)

Claims (5)

A rectangular housing in plan view in which a plug housing chamber connected to a plug insertion opening and a terminal space for housing a terminal electrically and mechanically connected to a corresponding plug are formed, and the terminal A jack with
The plug insertion port is provided on a plug insertion surface having an inclined portion including a curved surface or a plane having a shape along the shape of the side wall of the case of the portable device in the thickness direction;
The plug insertion surface is connected to a flat lower surface to which a circuit board is connected, at least a part of a portion in contact with the case of the portable device is a flat upper surface, and left and right side surfaces,
The upper surface is provided with an opening continuous to the terminal space, and the lower surface is provided with a slit continuous to the terminal space,
The terminal includes a fixed portion for assembling to the housing, a bent portion extending in one direction from the fixed portion, and a connecting portion facing the slit on the opposite side of the fixed portion in the one direction,
The jack is characterized in that the terminal is inserted into the opening from the connection portion side and assembled into the terminal space.   The jack according to claim 1, further comprising a structure for mounting an elastic member for securing airtightness on the entire surface or a peripheral portion of the entire surface from the upper surface to the front surface provided with the plug insertion port.   The structure of the peripheral edge of the entire surface is a series of walls having a rectangular surface in plan view, the front wall, rear wall, left wall, and right wall of the housing joined together, and the upper end surface having a predetermined width. The jack according to claim 2, wherein the jack is characterized.   The jack according to claim 2 or 3, wherein the elastic member is a silicone rubber.   5. The jack according to claim 1, wherein a sealing material for ensuring airtightness is filled in a slit formed on the lower surface and facing a connection portion of the terminal.

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