JP2006294311A - Structure for mounting terminal and the like onto housing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mount terminals and the like onto a housing with precision without rattling and without increasing the size of the housing. <P>SOLUTION: This structure comprises: a housing 4 having a flat engaging surface 1 on a top face thereof and engaging recesses 2 on both side faces, with locking projections 3 provided at the respective engaging recesses 2; and a frame 10 that is gate-shaped in which a lower surface of a top plate part 5 serves as a locking surface 5a, locking holes 7 are provided to open at both side plates 6 extending downward on both sides of the top plate part 5, a terminal section 8 is provided at the lowest part of each of the side plates 6, and down-facing projections 9 are further provided at four corners of the locking surface 5a. The locking surface 5a of the frame 10 is opposed to the engaging surface 1 of the housing 4, the side plates 6 are allowed to slide down in correspondence with the respective engaging recesses 2, and the projections 9 of the locking surface 5a are brought into pressure-contact with the engaging surface 1. At the same time, the locking projections 3 of the engaging recesses 2 are allowed to enter the locking holes 7 of the side plates 6 and the lower sides of the respective locking holes 7 are tightly locked at horizontal surfaces 3a of the locking projections 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a structure for attaching terminals to a housing in jacks and other various connectors used for transmission / reception of audio signals and video signals or transmission / reception of a power source.

  There are two types of mounting structures for this type of terminals to the housing. Here, the terminals are generally gate-shaped so as to cover all or a part of the upper surface and both sides of the housing of the connectors in addition to the so-called terminals, and the connectors at the lower ends of the both sides. It also includes a frame member having a terminal portion that can be joined and electrically coupled to a corresponding portion of the board to be attached.

  One of them is that a groove or slit for insertion of terminals is formed in the housing, and terminals with hook-like protrusions formed on the side are inserted with high pressure, and the hook-like protrusions are formed on the bottom surface of the grooves, etc. It is an attachment structure that bites in and fixes the insertion state.

  Secondly, a locking projection is formed on either the housing or the terminal, and a locking hole for locking the locking projection is formed on the other side, and the locking projection is locked on the periphery of the locking hole. This is a mounting structure for attaching the terminals to the housing.

  According to the one mounting structure, the terminals can be fixed to the housing while being accurately positioned, but a groove or a slit is formed inside the housing, and the terminals are attached thereto. However, there is a problem that the size of the housing is inevitably increased.

  Further, according to the second mounting structure, the terminals are fixed by pulling or pushing the terminals in a certain direction while locking the locking holes or the locking protrusions with the locking protrusions or the locking holes of the housing. It is attached and fixed to the housing. Then, the locking state between the locking hole and the locking projection is such that any surface of the terminals comes into contact with any surface of the housing, and so on in the certain direction. Although it is held by being unable to move, a slight clearance is required on the corresponding surfaces of the terminals and the housing from the viewpoint of allowing the locking operation as described above. There is a problem that this remains loose.

  Patent Documents 1 and 2 are examples in which the two mounting structures are provided. However, the sleeve terminal of Patent Document 1 has a structure in which the leg portion (terminal portion) extends straight, and the terminal portion does not contact and join to a corresponding portion such as a substrate. Even if it exists, it seems that the fall of the dimensional accuracy by it is an example which hardly becomes a problem.

Japanese Patent Laid-Open No. 10-69945 (paragraph 0031, FIG. 1) JP 2002-134239 A (paragraph 0024, FIG. 1)

  The present invention eliminates the problems of the prior art, and allows the terminals to be attached to the housing without increasing the size of the housing and with high dimensional accuracy without looseness. Providing a mounting structure is a problem to be solved.

According to the first aspect of the present invention, the engaging surface of the terminals is brought close to the engaging surface of the housing, and the engaging protrusion or the engaging hole of the terminals is engaged with the engaging hole or the engaging protrusion of the housing. In the mounting structure of the terminals to the housing for mounting the terminals to the housing,
A plurality of protrusions are formed on the locking surfaces of the terminals, and the protrusions are locked to the housing in a state where the locking protrusions or the locking holes of the terminals are locked to the locking holes or the locking protrusions of the housing. It is the attachment structure of the terminals to the housing comprised so that it might be in a press-contact state to this engagement surface.

  A second aspect of the present invention is the attachment structure of terminals to the housing according to the first aspect of the present invention, wherein the protrusion is a hemispherical protrusion protruding in a hemispherical shape from the locking surface, and an elliptical spherical shape from the locking surface. Either a protruding elliptical spherical protrusion or a cut-and-raised protrusion cut into a rectangle from the locking surface is employed.

  According to the attachment structure of the terminals to the housing of 1 of the present invention, when the terminals are attached to the housing, the protrusion of the locking surface comes into pressure contact with the engagement surface of the housing. The terminal is subjected to a reaction in a direction in which the terminals are separated from the engaging surface of the housing. Therefore, the locking holes or the locking projections of the terminals are attracted to the locking projections or the locking holes of the housing and are firmly connected to each other at predetermined positions, and are fixed in an accurate positional relationship with each other. Will be. Therefore, the terminals are attached to a predetermined portion of the housing with high accuracy without rattling.

As a result, when a plurality of terminals are attached to the housing, it becomes possible to accurately position all of the terminal portions within the same plane, and the connector with these terminals attached to the board to be attached, etc. In the case of attachment, any terminal portion of these terminals can be simultaneously brought into close contact with a corresponding portion such as the substrate.
Further, according to the structure for attaching terminals to the housing of 1 of the present invention, since the terminals are not inserted and fixed in grooves or slits formed in the housing, there is a possibility that a problem of expanding the size may occur. There is no.

  According to the mounting structure of the terminals to the housing of 2 of the present invention, it is possible to obtain a good effect of removing rattling and improving accuracy by the pressure contact action of the protrusion against the engaging surface of the housing, although both are simple configurations. Obtainable.

  The structure for attaching terminals to the housing of the present invention is such that the engaging surface of the terminals is brought close to the engaging surface of the housing, and the engaging protrusion or engaging protrusion of the terminals is placed in the engaging hole or engaging protrusion of the housing. An attachment structure in which a stop hole is locked and the terminals are attached to the housing. A plurality of protrusions are provided on the locking surface of the terminals, and the plurality of protrusions are close to the locking surface. It is characterized in that it is configured to be in pressure contact with the mating surface.

  As described above, the terminals which are the subject of the present invention have a locking surface that faces the engaging surface of the housing and faces the locking hole or the locking projection of the housing. It is a type with a hole.

  Many of such terminals are gate-shaped, and the lower surface of the upper plate part located at the upper center is used as a locking surface, and a locking hole or A locking projection is formed. The contact portion is usually configured to extend from the top or side. Further, the terminal portion is usually constructed at the lowermost end of both sides. The terminal portion should be configured to face the corresponding portion of the board or the like when the connector to which the terminals are attached is attached to the board or the like to be attached. The terminal portions that are in face-to-face contact are normally securely connected by soldering, but this is not a condition.

  In addition, the said terminals shall also include the frame member which is not provided with the contact part other than what is called a terminal as mentioned above. The frame member is exactly the same as the above-described terminal except that it does not include a contact portion.

  Needless to say, the locking holes or the locking projections of the terminals are the other ones that are paired with the one configured on the housing side (if the housing side is the locking hole, the terminals The side is configured by selecting a locking projection). The locking hole is not inconvenient as long as it is a hole that can be satisfactorily locked with the locking protrusion formed on the housing side, and is not limited to a specific size and shape. Also, there is no inconvenience as long as the locking projection is a projection that can be satisfactorily locked with the locking hole formed on the housing side, and is not limited to a specific size and shape.

  However, the locking holes or the locking protrusions of the terminals are such that the plurality of protrusions provided on the locking surfaces of the terminals are in pressure contact with the engaging surfaces of the housing. Alternatively, the locking holes and the locking holes are locked in a normal locking relationship. Therefore, in this state, the locking hole or the locking projection needs to be provided on the terminals in a positional relationship that allows the terminals to be accurately positioned on the housing.

  The protrusions, that is, the protrusions constituting the locking surfaces of the terminals are naturally protruded to the engaging surface side of the housing that faces each other. Each of the protrusions has the same size and a plurality of, for example, three or more, such that the locking surface is in close proximity to the engagement surface at an almost uniform distance via the protrusion at any part thereof. It is appropriate to project them uniformly.

  The protrusions can be formed in various shapes. For example, a hemispherical protrusion protruding in a hemispherical shape from the locking surface, an elliptical protrusion protruding in an elliptical shape from the locking surface, or a cut-and-raised protrusion cut and raised in a rectangular shape from the locking surface Can do. Even in other configurations, when the terminals are attached to the housing, the distance between the engaging surface and the engaging surface is appropriately maintained by pressing against the engaging surface of the housing facing the Any terminal can be used without any problem as long as it can guide the locking holes or the locking projections of the terminals and the locking protrusions or the locking holes of the housing to an appropriate locking state.

  Furthermore, it is preferable that the protrusion itself has elasticity from the viewpoint of appropriately performing the above functions. Or it is preferable that the terminals which comprise it have elasticity and this protrusion can be elastically press-contacted to the engaging surface of a housing.

  The housing has an engaging surface that is in contact with the engaging surface of the terminals when the terminals are attached thereto, and that engages with an engaging hole or an engaging protrusion of the terminals. Or it is provided with a locking hole. As described above, when the terminal to be attached is a gate type and is attached so as to straddle the housing, the housing has an engagement surface that faces the locking surface of the terminals in proximity to the upper surface thereof, It is set as the structure provided with the latching protrusion or latching hole latched with the latching hole or latching protrusion of terminals on both sides.

  The engagement surface may be a simple flat surface. However, normally, the engagement surface is arranged on the periphery of the housing so that the portion constituting the engagement surface of the terminals arranged in close proximity to the engagement surface is not exposed outward from the outer surface of the housing. It is preferable to constitute a concave flat surface recessed from the surface. In the case where the contact portion of the terminals attached to the housing is extended from the vicinity of the locking surface into the housing, the engagement surface is provided with an opening for a part of the engagement surface. Sometimes it is necessary.

  Needless to say, the locking protrusion or the locking hole of the housing is configured by selecting the other member paired therewith in relation to the one formed on the terminal side. As is clear from the description regarding the terminal side, there is no problem as long as the locking projection corresponds to the locking hole formed on the terminal side and can be locked well therewith, and has a specific dimension. It is not limited to shape and others. There is no problem as long as the locking hole corresponds to the locking protrusion formed on the terminal side and can be locked well therewith, and is not limited to a specific size and shape.

  The locking protrusions or the locking holes of the housing are the locking holes or the locking holes of the terminals in a state where a plurality of protrusions provided on the locking surfaces of the terminals are in pressure contact with the engaging surface of the housing. It should be positioned so as to be locked with each other in a normal locking relationship with the locking projection, and as described above, the terminals are attached to the housing by being positioned in this way. In this case, the positioning is accurately performed with high accuracy.

  Further, in the case where the contact portion of the terminals is configured so as to extend into the housing from the side portion, the housing needs to have an opening for introduction thereof on the side portion. . Further, if applicable, the housing is provided with attachment means for other terminals and other components, or an attachment means for attaching itself to a substrate to be attached or the like.

  Therefore, according to the attachment structure of the terminals to the housing of the present invention, when the target terminals are attached to the housing, the protrusion of the locking surface comes into pressure contact with the engagement surface of the housing. Therefore, the protrusion is subjected to a reaction in a direction in which the terminals are separated from the engaging surface of the housing from the engaging surface, whereby the locking holes or the locking protrusions of the terminals are formed on the housing. The locking projections or the locking holes are attracted to each other, and are firmly and tightly coupled to each other at predetermined positions. In this way, the terminals are attached to a predetermined part of the housing with high accuracy without rattling. In addition, the structure for attaching terminals to the housing of the present invention has no risk of expanding the size of the connector to which the terminal is applied.

  The structure for attaching terminals to the housing in this embodiment is applied to a jack. Basically, as shown in FIGS. 3 (a) to 3 (d), a flat engagement slightly lower than the surroundings on the upper surface. A housing 4 provided with a surface 1 and also having engagement recesses 2 and 2 which are similarly slightly recessed from both sides on both side surfaces, and in which the engagement protrusions 3 protrude from the engagement recesses 2 and 2 respectively. As shown in FIGS. 5 (a) to 5 (f), it is basically a gate type, and the lower surface of the upper plate portion 5 is used as a locking surface 5a. And a frame 10 provided with terminal portions 8 projecting outward from the lowermost portions of the side plates 6 and 6 and further having projections 9, 9... It is composed of

  As shown in FIGS. 1 (a) to 1 (d) and FIGS. 3 (a) to (d), the housing 4 is a substantially rectangular parallelepiped member formed of an insulating plastic, and a plug is inserted on the front surface thereof. An opening 11 is provided, and mounting protrusions 12 and 12 for positioning the opening 11 on a substrate to be mounted are provided, and mounting means for mounting two terminals that are mounted outside the frame 10 are provided. is there.

  As shown in FIGS. 1B to 1D and FIGS. 3B to 3D, the engagement surface 1 of the housing 4 is located at a position slightly rearward of the upper surface of the housing 4. The engaging recesses 2, 2 are configured to be continuous from both sides to the side part. The engaging recesses 2 and 2 are narrower than the side width of the engaging surface 1 and are configured to continue from the position slightly rearward of the side of the engaging surface 1 to the side surface of the housing 4. It is. Further, the engaging projections 3 project from the central portions of the engaging recesses 2 and 2 slightly below.

  As shown in FIGS. 1C, 1D, 2A, 3B to 3D, and FIG. In addition, the projection is configured such that the tip and both sides are vertical surfaces and the lower part is a horizontal plane 3a, and the lower side of the locking hole 7 of the frame 10 is locked to the lower horizontal plane 3a.

  The frame 10 is a component composed of a conductive and slightly elastic metal plate, and as shown in FIGS. 1 (a) to (d), FIGS. 2 (a), (b) and FIG. And as mentioned above, it is basically a portal type. The upper plate portion 5 of the frame 10 has a rectangular shape that is slightly smaller than the planar shape of the engagement surface 1 of the housing 4 on which the frame 10 is disposed, and the back surface of the upper plate portion 5 is engaged as described above. It is a stop surface 5a. The both side plates 6, 6 are band plate-like components that hang down from both sides of the upper plate portion 5, and the width thereof is slightly smaller than that of the engaging recesses 2, 2 of the housing 4. It is what. The terminal portion 8 is a plate-like component projecting outward from the center of the lowermost end of each side plate 6, 6 and parallel to the upper plate portion 5, and is formed with a smaller width than the side plate 6. It is a member.

  The protrusions 9, 9... Are formed at the four corners of the locking surface 5a as described above and as shown in FIGS. 1 (b), 1 (d), 2 (b) and 5 (a) to 5 (f). In this embodiment, as shown in the figure, the four corners of the upper plate part 5 constituting the locking surface 5a are projected downward in a hemispherical shape. Is.

  As described above and as shown in FIGS. 1 (c), (d), FIG. 2 (a) and FIGS. 5 (c), (d), (f), the locking holes 7 are formed on the side plates 6 as described above. , 6 is a horizontally long rectangular opening that opens slightly downward. More precisely, when the frame 10 is arranged on the housing 4 in a predetermined manner, the protrusions 9, 9... In a state of being pressed against the engaging surface 1 of the housing 4, the lower sides of the locking holes 7, 7 are the horizontal surfaces 3 a below the locking protrusions 3, 3 arranged in the engaging recesses 2, 2 of the housing 4. It is an opening part opened to the positional relationship locked closely.

  Therefore, in the structure for attaching terminals to the housing of this embodiment, the frame 10 can be attached to the housing 4 by the following simple assembling operation.

  That is, the locking surface 5 a of the upper plate portion 5 of the frame 10 faces the engagement surface 1 of the housing 4, and the both side plates 6, 6 are connected to the housing 4 in such a manner as to straddle the frame 10 over the housing 4. .. Corresponding to the respective engagement recesses 2 and 2 and sliding them down so that the four corner projections 9, 9... As shown in FIGS. 1 (c), (d) and FIG. 2 (a), the locking projections 3, 3 projecting from the engaging recesses 2, 2 are inserted into the locking holes 7, 7, respectively. The lower sides of the locking holes 7, 7 can be tightly locked to the horizontal surfaces 3a, 3a, respectively.

  Needless to say, the other two terminals are attached to the housing 4 by using the attaching means before and after this operation. In the figure, 13 is a terminal portion of another terminal, and 14 is a terminal portion of another terminal. Reference numeral 15 denotes a terminal contact portion including the terminal portion 13.

  Therefore, according to the attachment structure of the terminals to the housing of this embodiment, when the frame 10 is attached to the housing 4 as described above, the protrusions 9, 9... As described above, the locking projections that protrude from the engaging recesses 2 and 2 of the housing 4 are formed at the lower sides of the locking holes 7 and 7 that are in pressure contact with the mating surface 1 and that are opened in the side plates 6 and 6. Thus, the frame 10 is tightly locked to the horizontal surfaces 3a and 3a which are the lower surfaces of the housings 3 and 3, so that the frame 10 is accurately positioned and fixed to the housing 4 without rattling.

  For this reason, the terminal portions 8 and 8 projecting outward from the lowermost portions of the side plates 6 and 6 of the frame 4 are also accurately positioned without play. In particular, the positioning in the height direction is accurately performed, and the terminal portions 13 and 14 of other similarly accurately disposed terminals can be accurately positioned in the same plane.

  Therefore, for example, when the jack having this configuration is attached to the target board 16, all of the terminal portions 8, 8, 13, 13, 14, and 14 are associated with the board 16 as shown in FIG. It is possible to perform soldering by accurately bringing it into close contact with the solder paste application sites 17, 17..., And the defect rate due to poor bonding can be extremely reduced.

  Further, there is no problem of increasing the size of the housing 4 in order to realize the above-described highly accurate attachment.

(a) is a front view of the jack of the embodiment, (b) is a plan view, (c) is a left side view, and (d) is a perspective view of the jack in a state of being arranged on a board (part). (a) is the sectional view on the AA line of FIG.1 (b), (b) is the sectional view on the BB line of FIG.1 (b). (a) is a front view of a housing, (b) is a plan view, (c) is a left side view, and (d) is a perspective view. CC sectional view taken on the line of FIG.3 (c). (a) is a front view of the frame, (b) is a plan view, (c) is a left side view, (d) is a right side view, (e) is a sectional view taken along the line DD of (b), (f) (C) is the EE sectional view taken on the line.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Engagement surface 2 Engagement recessed part 3 Locking protrusion 3a Horizontal surface 4 Housing 5 Upper board part 5a Locking surface 6 Side plate 7 Locking hole 8 Terminal part 9 Projection 10 Frame 11 Plug insertion port 12 Mounting protrusion 13, 14 Others Terminal part of terminal 15 Contact part 16 Board 17 Solder paste application site

Claims (2)

The engaging surface of the terminal is brought close to the engaging surface of the housing, and the engaging protrusion or the engaging hole of the terminal is engaged with the engaging hole or the engaging protrusion of the housing, and the terminal is attached to the housing. In the mounting structure of terminals to the housing to which
A plurality of protrusions are formed on the locking surfaces of the terminals, and the protrusions are locked to the housing in a state where the locking protrusions or the locking holes of the terminals are locked to the locking holes or the locking protrusions of the housing. A structure for attaching terminals to a housing that is configured to be in a pressure contact state with the engagement surface.   As the protrusion, either a hemispherical protrusion protruding in a hemispherical shape from the locking surface, an elliptical protrusion protruding in an elliptical shape from the locking surface, or a cut-and-raised protrusion cut and raised in a rectangular shape from the locking surface 2. A structure for mounting terminals to the housing according to claim 1.

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