JP3291526B2 - Connector with cover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AV (Audio)
Visual) For connectors used in equipment, etc.,
In particular, the present invention relates to a connector provided with a cover for protecting contacts (contact points) and preventing adhesion of dust.

[0002]

2. Description of the Related Art There are various types of connectors used for AV equipment or the like, which protect electrical contact points and also serve as contact covers. For example, a connector with a cover as shown in FIGS. 29 to 32 is well known.

[0003] The first connector 1 with a cover is shown in FIG.
As shown in FIG. 30 and FIG. 31, the connector is a surface contact type connector, has a substantially square outer wall, and has a main body 2 provided with a contact inside thereof, and an upper wall of the main body 2. And a cover portion 6 placed thereon.

The main body 2 has a plurality of contacts arranged in two rows on the upper portion thereof, and a projection 3 for rotatably supporting a cover 6 in a cantilever shape at both ends of the front surface. , FIG.
Notch 4 with the lower side cut out at substantially the center of the back surface shown at 0
Is provided.

[0005] A wound spring 5 that constantly urges the cover portion 6 upward is fitted at a substantially central position in the upper portion of the front surface of the main body portion 2.

The cover 6 has a size to cover the upper part of the main body 2, and has a contact fitting part 7 having a slit for loosely fitting a plurality of contacts on the upper part, and a projection 3 on the front side. A hook-shaped engaging portion 8 to be engaged and a stopper claw portion 9 to be engaged with the cutout portion 4 are provided on the back side.

In assembling the main body 2 and the cover 6 having such a structure, first, one end of the spring 5 is fitted and disposed at a substantially central position on the upper front surface of the main body 2. Then, the hook-shaped engaging portion 8 is rotatably fitted to the protruding portion 3 and the stopper claw portion 9 is engaged with the cutout portion 4 on the back surface, thereby completing the assembly.

In the connector with a cover thus assembled, when the connection with the contact is not made, as shown in FIG. 29, the cover 6 covers the contact, and the contact is fitted with the contact. It is in a state facing the unit 7. Then, as shown in FIG. 31, when pressed by the external connector 10 from above the cover 6, the contacts 11 are exposed from the contact fitting portion 7, and electrical connection with the external connector 10 can be obtained. If the external connector 10 moves in the direction in which the external connector 10 moves away, the biasing force of the spring 5 causes the cover 6 to rotate upward with the projection 3 as a support shaft, and the contact 11 to face the contact fitting portion 7. Cover in the state. In this manner, the contact 11 is rotated while supporting the one end so that the contact 11 can be made to come and go from the cover 6, so that the contact 11 can be covered when not in use to prevent breakage and adhesion of dust. it can.

The second connector with cover 1A is shown in FIG.
As shown in FIG. 2, a male-female connector, a main body 2A having an outer wall formed in a box shape, and a main body 2A
And a lid 13 provided on the top of the main body 2A.

The lid 13 is provided at a position above the contact 11A and has a structure in which a shutter 14 that can be opened and closed is provided. When the connector 1A is not used, the shutter 14 is closed. The hollow inside of the portion 2A has a structure shielded from the outside. When the connector 1A is used, the structure is such that the shutter 14 of the lid 13 is pushed and opened to contact the contact 11A to obtain an electrical connection.

The connector 1A having such a structure is as follows.
When not in use, the shutter 11 of the lid 13 contacts the contact 11
Because the structure around A is closed, the contact 11A
It is possible to prevent unnecessary pressing force on the surface and prevent entry of dust and the like.

[0012]

However, the first cover-equipped connector 1 according to the prior art described above.
Are main bodies 2, 2A forming a housing provided with contacts
Is always formed with an outer wall, and the outer wall has a structure in which a notch 4 is provided to guide the vertical rotation of the cover 6, and there is a certain limit in reducing the outer wall forming the housing. There is a problem that the size of the entire connector cannot be reduced.

The second connector with cover 1A has a structure in which the outer wall forming the housing covers the contacts, so that the size of the connector is increased by the outer wall, and the overall size of the connector is reduced. There are certain limits to achieving this.

Therefore, there is a problem that it is necessary to solve the problem of a connector structure that can cope with miniaturization and can cover a portion of a contact for electrically connecting when the connector is not used.

[0015]

In order to solve the above problems, a connector with a cover according to the present invention is mounted on a substrate.
Male connector, formed of an insulating material
Rectangular housing, and on the side wall surface of the housing,
A plurality of contacts arranged in a vertical direction;
A shutter that slides up and down along a contact;
Flat ground that is inserted into and engaged with the interior space of the housing
A metal fitting, a winding part being engaged with the ground metal fitting, and a spring
Press the tip against the bottom of the
And a helical spring that constantly urges the
The cutter covers the contact from outside.
When the connector is not used.
All contact points for electrical connection of the contacts are on the outside
Cover and the lower part of the contact is exposed.
When using the connector, contact the shutter.
Slides down along to connect the contacts electrically
This is to expose the site.

According to the above configuration, the cover for protecting the contact portion is slidably provided on the outer peripheral surface of the contact portion, and covers the portion of the contact to be electrically connected when not in use. In other words, the outer wall or the outer wall, which is an indispensable requirement in the so-called conventional technology, becomes unnecessary, so that the external shape of the connector can be reduced, and the state in which the connector is fitted can be reduced.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a connector with a cover according to the present invention will be described below in detail with reference to the drawings.

As shown in FIGS. 1 to 4, the connector 20 with a cover includes a housing 21, a contact 34, a shield 50, a shutter 47, and a grounding metal 39.

As shown in FIGS. 5 to 9, the housing 21 is composed of a thin rectangular box-shaped pedestal 22 and a rectangular-rectangular joint 25 formed integrally with the pedestal 22 by standing at the center of the pedestal 22. It is configured.

The pedestal 22 is formed with engaging portions 23 provided on both side ends of the joining portion 25 and a convex linear shape having a predetermined length parallel to the longitudinal direction on both sides of the engaging portion 23. Convex part 24
It is composed of

The joining portion 25 includes a contact engaging portion 26 comprising a plurality of grooves (10 in one side wall surface in the embodiment) formed in a longitudinally aligned state on a longitudinal side wall surface formed in a rectangular shape. At the center of the inside, two slits 27 are arranged in a row, and an earth metal fitting engaging portion 29 (see FIG. 7) connected to the slits 27 and forming one space inside.

The contact engaging portion 26 is formed continuously with a contact engaging groove 30 formed in a state of being aligned in a vertical direction (longitudinal direction) with respect to the pedestal 22 and an upper end of the contact engaging groove 30. The contact support portion 31 is provided to insert and support the free end of the contact 34 (see FIG. 4).

As shown in FIGS. 8 and 9, the grounding metal engaging portion 29 has a claw-shaped locking projection for engaging and locking the grounding metal 39 (see FIG. 4) at an intermediate position provided continuously with the slit 27. Part 3
2 and, as shown in FIG.
A biasing spring through-hole 33 formed in an elongated slit shape on the side wall surface and guide grooves 21A and 21B including the biasing spring through-hole 33 and extending in the vertical direction having different widths are provided. I have. The guide grooves 21A and 21B guide the assembled shutter 47 up and down and prevent the shutter 47 from slipping upward.

As shown in FIGS. 10 and 11, the contact 34 is formed of a long and thin conductive member, the upper part is formed in an R shape, and the contact part 35 is electrically connected. A support portion 36 for supporting the contact 34 is provided at the free end, and the contact engagement portion 26
A claw portion 37 which is press-fitted into the groove of (see FIG. 9) to engage and lock;
After being assembled in the housing 21, a terminal portion 38 on the base side to be connected to a substrate or the like is integrally formed.
Then, the contact 34 is connected to the housing 21 (see FIG. 4).
After that, the terminal portion 38 is bent outwardly of the housing 21 as shown by a broken line in FIG.

As shown in FIG. 12, FIG. 13, and FIG. 14, the grounding metal member 39 is made of a substantially rectangular conductive flat plate member having a wide lower part, and is cut out at three places at the upper part to form a rearward part. Two bent claws 40 aligned, a spring fitting portion 41 formed by bending in the front direction in FIG. 12 at the lower center position, and both sides having a predetermined width at both sides of the spring fitting portion 41 The spring terminal engaging portion 42 is formed by notching the lower flat plate and bending the flat plate rearward to form a ring-shaped space, and the terminal portion 43 is formed by bending the lower side of the spring terminal engaging portion 42 rearward at right angles. ing.

As shown in FIGS. 15 and 16, the winding spring 44 is a spring formed by winding a single metal rod member. The winding spring 45 includes a winding part 45 and a winding part 45. And a spring tip 46 which protrudes and spreads in a fan shape at the center.

FIG. 17, FIG. 18, and FIG.
20, as shown in FIG. 20, a rectangular box having a hollow inside is formed.
A contact guide portion 48 formed of a linear groove having a size capable of accommodating therein (see FIG. 4) a claw 52A of a shield 50 at an upper position opposed to both ends in the longitudinal direction (see FIG. 22).
The shield 50 is located at a position (see FIG. 20) where the claw 52A is located at a lower position facing the guide groove 49A, which also serves as a guide for the shutter 47, and which is displaced from the guide groove 49A. The pawl 52B (see FIG. 22) is bent and locked, and the pawl 52B is provided with a guide groove 49B that also serves as a guide for the shutter 47 together with the pawl 52A.

The shield 50 is shown in FIGS.
As shown in FIG. 3, a metallic substantially rectangular frame 5 penetrated to a size to be covered from the outside of the shutter 47 (see FIG. 17).
1 and a claw 52A that engages with the guide groove 49A of the shutter 47 at a longitudinally opposed upper position of the frame body 51 and a longitudinally opposed lower position that is
The structure is such that the claw 52B is provided at a position shifted from the position of the claw 52A.

The claw 52A is formed in the shape of a tongue protruding upward by cutting out the frame body 51, and the claw 52B is formed in the same tongue shape protruding downward.
7 is bent inward at the positions of the guide grooves 49A and 49B when the shield is put on the cover 7. Claw 5 bent in this way
As shown in FIG. 8, 2A and 52B are engaged with the guide grooves 21A and 21B of the housing 21, and have a function of engaging with the shutter 47 and preventing the housing 21 from coming off.

Next, the housing 21, the grounding metal 39, the winding spring 44, the contact 3
4, assembly of the shutter 47 and the shield 50 will be described below with reference to the drawings.

First, the contact 34 is press-fitted into the contact engaging portion 26 of the housing 21 from above, and the contact 34 is attached to the contact engaging portion 26 of the housing 21.
1 and supported. Then, the terminal portion 43 protruding to the lower side of the joint portion 25 is bent outward.

Next, the winding part 45 of the winding spring 44 is passed through the spring fitting part 41 of the earth metal fitting 39, and the spring tip 46 of the winding spring 44 is passed through the space of the spring terminal engaging part 42 to assemble.

Then, the earth metal fitting 39 to which the winding spring 44 is mounted is inserted from the bottom direction of the earth metal fitting engaging portion 29 of the housing 21, and the claw 40 of the earth metal fitting 39 is engaged with the locking projection 32 of the housing 21. Until it locks. At this time, the spring tip portion 46 of the winding spring 44 projects to both short sides of the housing 21.

Next, the shutter 47 covered with the shield 50
Is mounted in the contact 34 from above the joint 25. And the claw 52 of the shield 50
A and 52B are bent inward. Then, the shield 50 covering the shutter 47 is prevented from coming off, and the claws 52A and 52B serve as a guide for the shutter 47 as shown in FIG. Then, the spring tip 46 of the winding spring 44 is brought into contact with the bottom of the claw 52B. In other words, the shutter 47 guides the pawls 52A and 52B to prevent it from falling out of the housing 21 and slide vertically. At the same time, the contact 34 is urged from the lower side by the spring tip 46 to cover the R-shaped contact portion 35 of the contact 34. In this state, if the shutter 47 is pushed downward against the urging force of the winding spring 44, the R-shaped contact portion 35 of the contact 34 is exposed.

The connection between the connector 20 with the cover and the external connector thus assembled is shown in FIGS.
This will be described below with reference to FIG.

FIG. 24 shows a state where the external connector 52 is in contact with the upper part of the connector 20 in order to join the connector 20 with the cover of the present invention. Here, the external connector 20 is a joint 25 of the connector 20 with a cover.
Is formed in a female housing 53 having a size that fits therein. A contact 54 provided inside the female housing 53 in alignment with the contact 34 of the connector 20 with a cover, and a lid portion for closing the female housing 53 when not in use. 55 and the lid 55
Is provided with a lock spring 56 for locking so as not to open.

The external connector 52 having such a structure
24 and the connector 20 with the cover of the present invention are connected as shown in FIG.
As shown in (1), the external connector 52 is first approached to the connector 20, and the tip of the lock spring 56 contacts the inclined portion of the upper corner of the shutter 47. Then Figure 2
As shown in FIG. 5, the inclined shield part and the inclined tip part of the lock spring 56 come into contact with each other, and
The locked state of the lid 55 is released by moving in the left-right direction away from the camera.

When the locked state of the lid portion 55 is released, the lid portion 55 comes into contact with the upper portion of the shutter 47 so that the shutter 47 can be pushed downward. Further down,
As shown in FIGS. 26, 27, and 28, the contacts 54 of the external connector 52 slide while connecting to the connector 34 of the connector 20 with the cover, and the shutter 47 is pushed down to the base position of the joint 25. That is, the shutter 47 can obtain an electrical connection with the R-shaped contact portion 35 of the contact 34 by the pressing force of the external connector 52 while receiving the urging force of the winding spring 44.
As described above, the connector with cover 20 of the present invention can be simplified in size and downsized by providing the shutter also serving as the protective cover.

[0039]

As described above, according to the connector with the cover according to the present invention, the protection portion for protecting the contact is slidably provided on the outer peripheral surface of the contact. Structure that serves as both a shutter and a protective member by positioning it at a position that covers the part to be electrically connected and sliding downward during use to expose and connect the part to be electrically connected. Therefore, the structure of the connector itself can be simplified and the outer shape can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view of a connector according to the present invention.

FIG. 2 is a partially broken side view of the connector.

FIG. 3 is a sectional view taken along line AA in FIG.

FIG. 4 is a sectional view taken along line BB in FIG.

FIG. 5 is a plan view of a housing constituting the connector.

FIG. 6 is a side view of a housing constituting the connector.

FIG. 7 is a sectional view taken along line CC in FIG.

FIG. 8 is a right or left side view of a housing constituting the connector.

FIG. 9 is a sectional view taken along line DD in FIG. 9;

FIG. 10 is a plan view of a contact constituting the connector.

FIG. 11 is a side view of a contact constituting the connector.

FIG. 12 is a plan view of a grounding member constituting the connector.

FIG. 13 is a sectional view taken along line EE in FIG.

FIG. 14 is a sectional view taken along line FF in FIG.

FIG. 15 is a plan view of a coil spring constituting the connector.

FIG. 16 is a side view of a coil spring constituting the connector.

FIG. 17 is a plan view of a shutter constituting the connector.

FIG. 18 is a sectional view taken along line GG in FIG.

FIG. 19 is a sectional view taken along line HH in FIG.

FIG. 20 is a side view of the shutter shown in FIG. 17;

FIG. 21 is a plan view of a shield constituting the connector.

FIG. 22 is a side view of a shield constituting the connector.

FIG. 23 is a right side view of a shield constituting the connector.

FIG. 24 is an explanatory diagram showing a state of joining with the external connector.

FIG. 25 is an explanatory view showing a state in which the connector is being joined to the external connector.

FIG. 26 is an explanatory view showing a state when the external connector is joined.

FIG. 27 is an explanatory diagram showing a state when the external connector is joined.

FIG. 28 is an explanatory view showing a state when the external connector is joined.

FIG. 29 is a schematic perspective view showing a surface contact type connector according to the related art.

30 is a schematic perspective view of the surface contact type connector shown in FIG. 28 as viewed from the back.

FIG. 31 is a schematic perspective view showing a state in which a cover portion of the surface contact type connector according to the related art shown in FIGS. 29 and 30 is pushed down.

FIG. 32 is a schematic perspective view showing a female-male mating type connector in the prior art.

[Explanation of symbols]

20; connector with cover, 21; housing, 21
A, 21B; guide groove, 22; pedestal, 23;
24; convex portion, 25; joining portion, 26; contact engaging portion,
27; slit; 29; grounding fitting engaging portion; 30; contact engaging groove portion; 31; contact supporting portion; 32; locking projection; 33; biasing spring through hole;
5; contact portion, 36; support portion, 37; claw portion, 38; terminal portion, 39; grounding fitting, 40; claw, 41; spring fitting portion,
42; spring terminal engaging portion; 43; terminal portion; 44; winding spring; 45; winding portion; 46; spring tip; 47; shutter;
9A, 49B; Guide groove, 50; Shield, 51; Frame, 52A, 52B; Claw, 53; Female housing, 5
4; contact, 55; lid, 56; lock spring

Claims (1)

(57) [Claims] A male connector attached to a substrate.
And a rectangular housing formed of an insulating member and a side wall surface of the housing arranged in a vertical direction.
A plurality of contacts; a shutter slidable vertically along the contacts; and a flat plate-shaped aperture which is inserted into and engaged with the internal space of the housing.
And the winding part is engaged with the ground metal and the tip of the spring is
The shutter is kept in contact with the bottom of the
The shutter is configured to cover the contact from an outside direction.
When the connector is not used.
To all of the contact sites electrically connected to the contact
Covered from outside and exposed below the contact
State, and when using the connector, release the shutter.
Slide downwards along the tact to electrically connect the contacts.
The cover is characterized by exposing a portion that continues.
With connector.