JP7203316B2 - sockets and lighting fixtures - Google Patents

Description

The present invention relates to sockets and lighting fixtures.

In Patent Document 1, a wire of a lead wire is inserted into a locking hole through an engagement opening of a holder, and a spring portion (end piece) of a quick connection terminal (spring contact) is elastically contacted with a side surface of the wire. discloses a configuration in which a lead wire is electrically connected to a quick-connect terminal.

Here, when the lead wire is removed from the holder, a release pin is inserted through the engagement opening of the holder to press the tip of the spring portion of the quick-connect terminal, thereby elastically deforming the spring portion.

Japanese Patent Application Laid-Open No. 2011-70901

By the way, in the invention of Patent Document 1, the release pin is inserted from the engagement opening of the holder, and the hole into which the lead wire is inserted and the hole into which the release pin is inserted are opened on the same plane. Therefore, the movable range of the release pin inside the engagement opening of the holder is large.

If the release pin is moved freely inside the engagement opening, the spring portion of the quick-connect terminal may be twisted by the release pin, resulting in excessive deformation of the spring portion of the quick-connect terminal.

The present invention has been made in view of such a point, and an object thereof is to suppress excessive deformation of the spring portion of the quick-connect terminal.

The present invention is directed to a socket for detachably attaching a light source unit, and has taken the following solutions.

That is, the first invention includes a flat plate-shaped flange portion and a terminal portion provided in the flange portion and housing a quick-connect terminal therein, and the terminal portion includes a conductive terminal connected to the quick-connect terminal. An insertion port into which a wire is inserted and a release hole that opens at a position facing the spring portion of the quick-connect terminal are formed. An opening is formed through which the

In the first invention, the quick-connecting terminal is accommodated inside the terminal portion. A release hole is formed in the terminal portion. The release hole is open at a position facing the spring portion of the quick-connect terminal. An opening is opened in the flange portion. The opening extends in a direction crossing the release hole and communicates with the release hole.

As a result, excessive deformation of the spring portion of the quick-connect terminal can be suppressed.

Specifically, in order to remove the conductive wire connected to the quick-connect terminal, it is necessary to press the spring portion of the quick-connect terminal with a release pin to elastically deform the conductive wire and the quick-connect terminal to release the engagement state. There is At this time, if the release pin is freely moved inside the release hole, the spring portion of the quick-connect terminal may be excessively deformed.

Therefore, in the present invention, an opening is formed in a direction crossing the release hole, and the release pin is inserted from the opening toward the release hole. At this time, the release pin is inserted into the release hole while contacting the peripheral edge of the opening, so that the release pin is kept in a predetermined posture.

By restricting the free movement of the release pin inside the release hole in this way, it is possible to prevent the spring portion of the quick-connect terminal from being twisted by the release pin and excessively deformed.

In a second aspect based on the first aspect, an inclined portion is provided on the inner surface of the release hole so that the hole diameter of the release hole decreases from the opening toward the spring portion of the quick-connect terminal. It is

In the second invention, an inclined portion is provided on the inner surface of the release hole. The sloped portion reduces the diameter of the release hole from the opening toward the spring portion of the quick-connect terminal. As a result, the release pin inserted into the release hole from the opening can be smoothly guided to the spring portion of the quick-connect terminal while being guided along the inclined portion of the release hole.

In a third aspect based on the first or second aspect, the terminal portion is formed with a through-hole extending substantially parallel to the insertion opening and communicating with the release hole.

In the third invention, a through hole is formed in the terminal portion. The through hole extends substantially parallel to the insertion hole and communicates with the release hole.

As a result, for example, when the terminal portion is formed by resin molding, a mold for forming the release hole can be smoothly removed along the axial direction of the through hole.

In a fourth invention, in any one of the first to third inventions, the flange portion has a central opening formed at a center position in the radial direction, and the terminal portion is provided with the flange across the central opening. The insertion openings are respectively opened at one end side of the pair of terminal portions in a direction perpendicular to the thickness direction, and the openings are formed on the surface of the flange portion on which the terminal portions are provided. Each has an opening on the opposite side.

In the fourth invention, a pair of terminal portions are provided on the flange portion across the central opening. Insertion openings are opened at one end sides of the pair of terminal portions in a direction perpendicular to the thickness direction. Thereby, the conductive wire can be inserted and removed from the pair of terminal portions in the same direction.

Also, the openings are opened on the surface of the flange portion opposite to the surface on which the terminal portion is provided. As a result, the release pin can be inserted into the opening from the thickness direction of the flange portion without the conductive wire becoming an obstacle.

A fifth invention is a lighting fixture comprising the socket according to any one of the first to fourth inventions and a light source unit detachably attached to the socket.

In a fifth invention, a lighting fixture is configured by detachably attaching a light source unit to the socket according to any one of the first to fourth inventions.

According to the present invention, excessive deformation of the spring portion of the quick-connect terminal can be suppressed.

It is a side view which shows the structure of the lighting fixture which concerns on this embodiment. It is a top view which shows the structure of the socket seen from the terminal part side. FIG. 4 is a plan view showing the configuration of the socket when the cover of the terminal portion is removed; FIG. 3 is a plan view showing the configuration of a socket as seen from the mounting surface side of the light source unit; It is a side view which shows the state which attaches a light source unit to a socket. It is a side cross-sectional view showing an internal configuration of a terminal portion. FIG. 10 is a side cross-sectional view showing a state in which the release pin is inserted into the release hole;

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. It should be noted that the following description of preferred embodiments is essentially merely an example, and is not intended to limit the present invention, its applications, or its uses.

As shown in FIG. 1, the lighting fixture 10 is embedded in, for example, the ceiling of a house or the like, and emits light downward. A lighting fixture 10 is attached to the mounting plate 1 . A terminal block 2 is provided on the mounting plate 1 . The lighting fixture 10 includes a fixture housing 11 , a light source unit 12 and a socket 20 .

The instrument housing 11 is composed of a bottomed cylindrical member that is open at the bottom. The fixture housing 11 is a mounting base to which the light source unit 12 is mounted, and also functions as a heat sink for dissipating heat generated by the light source unit 12 . The instrument housing 11 is made of a material with high thermal conductivity, such as aluminum. A plurality of radiating fins (not shown) are provided on the upper part of the equipment housing 11 .

The light source unit 12 has, for example, an LED (Light Emitting Diode) as a light emitting module. The light source unit 12 is supported inside the instrument housing 11 via a rotation support member 15 . The rotary support member 15 has a holding member 16 that holds the light source unit 12 and the socket 20 and a rotary support arm 17 that rotatably supports the holding member 16 . As a result, the light source unit 12 can be rotated to any posture and the light irradiation direction can be adjusted.

The light source unit 12 is composed of a lamp having a GX53 base, for example. The light source unit 12 is detachably attached to the socket 20 . External commercial power is input to the socket 20 via a power cable 18 (see FIG. 2) as a conductive wire. Power input to the socket 20 is supplied to the light source unit 12 .

As shown in FIG. 2 , the socket 20 has a flange portion 21 , a terminal portion 30 and a spacer portion 25 .

The flange portion 21 is composed of a flat member. A central opening 22 is formed at a radially central position of the flange portion 21 . A tubular portion 23 is erected on the peripheral portion of the central opening 22 of the flange portion 21 .

A pair of terminal portions 30 are provided on the surface of the flange portion 21 on which the cylindrical portion 23 stands. The pair of terminal portions 30 are arranged on the left and right in FIG. 2 with the central opening 22 interposed therebetween. The terminal portion 30 has a peripheral wall portion 31 (see FIG. 3) erected from the flange portion 21 and a lid body 32 covering an opening on the standing side of the peripheral wall portion 31 . A storage space is defined inside the terminal portion 30 by the peripheral wall portion 31 and the lid body 32 .

The terminal portion 30 is provided with a cylindrical cable insertion opening 33 into which the power cable 18 is inserted. The cable insertion openings 33 are opened in the peripheral wall portion 31 on one end side (upper end side in FIG. 2) of the terminal portion 30 in a direction orthogonal to the thickness direction.

As shown in FIG. 3 , a quick-connect terminal 40 and a leaf spring member 45 are housed inside the terminal portion 30 . An elongated pin insertion opening 34 is formed in the surface of the terminal portion 30 on the side of the flange portion 21 . The pin insertion opening 34 communicates with the inside of the terminal portion 30 . The pin terminals 13 of the light source unit 12 are inserted into the pin insertion openings 34 .

The quick-connect terminal 40 has a spring portion 41, a contact portion 42, and a conductive portion 43 (see also FIG. 6). The spring portion 41, the contact portion 42, and the conductive portion 43 of the quick-connect terminal 40 are integrally formed by bending one conductive plate. The spring portion 41 is composed of a locking spring. The power cable 18 is electrically connected to the quick-connect terminal 40 by being sandwiched between the spring portions 41 of the quick-connect terminal 40 .

The conductive portion 43 of the quick-connect terminal 40 on the left side in FIG. 3 extends so as to cover the pin insertion opening 34 . The contact portion 42 of the quick-connect terminal 40 on the left side is arranged at the lower end portion of the pin insertion opening 34 .

The conductive portion 43 of the quick-connect terminal 40 on the right side in FIG. 3 extends to the upper end portion of the pin insertion opening 34 . The contact portion 42 of the quick-connect terminal 40 on the right side is arranged at the upper end portion of the pin insertion opening 34 .

The leaf spring member 45 extends along the longitudinal direction of the pin insertion opening 34 (vertical direction in FIG. 3). The leaf spring member 45 has a bent portion 46 bent to protrude toward the pin insertion opening 34 . The pin terminal 13 is sandwiched between the contact portion 42 of the quick-connect terminal 40 and the bent portion 46 of the leaf spring member 45 .

The spacer portions 25 are arranged at both ends of the pair of terminal portions 30 in the longitudinal direction. The spacer portion 25 is fastened and fixed to the holding member 16 (see FIG. 1) of the rotation support member 15 by fastening screws (not shown).

The power cable 18 is connected to the cable insertion opening 33 of the terminal portion 30 and routed through the gap between the tubular portion 23 and the spacer portion 25 . Here, the cable insertion port 33 has a part of the peripheral edge portion facing the spacer portion 25 cut out.

As a result, the power cable 18 can be pulled out from the notch portion of the cable insertion port 33 and routed in the gap between the tubular portion 23 and the spacer portion 25, so that the power cable 18 is forcibly bent. There is no need, and disconnection can be suppressed.

A pair of cable restricting portions 50 are provided between the left and right spacer portions 25 of the flange portion 21 . The cable restricting portion 50 has a standing portion 51 provided on the flange portion 21 and a hook portion 52 folded back at the tip of the standing portion 51 (see FIG. 5). By engaging the power cable 18 with the hook portion 52 , it is possible to restrict the power cable 18 from moving away from the flange portion 21 .

As shown in FIG. 4, in the surface of the flange portion 21 to which the light source unit 12 is attached, an elongated pin insertion opening 34 into which the pin terminal 13 is inserted and a release pin 55 (see FIG. 7) are inserted. and an opening 24 is formed.

Then, the pin terminals 13 of the light source unit 12 are inserted into the pin insertion openings 34, and the light source unit 12 is rotated clockwise in FIG. As a result, the left and right pin terminals 13 can be electrically connected to the contact portions 42 of the left and right quick-connect terminals 40, respectively.

Here, as shown in FIG. 5, the outer peripheral surface of the light source unit 12 is formed with a fitting groove 12a. A fitting claw 21a (see FIG. 4) protruding radially inward is provided in the central opening 22 of the flange portion 21. As shown in FIG. Therefore, when the light source unit 12 is rotated with respect to the socket 20, the fitting claws 21a are fitted into the fitting grooves 12a, preventing the light source unit 12 from falling off in the axial direction. Thereby, the light source unit 12 is attached to the socket 20 .

As shown in FIG. 6 , a first space 35 and a second space 36 are provided inside the terminal portion 30 . 6 shows the internal structure of the left terminal portion 30 in FIG. The first space 35 communicates with the cable insertion port 33 . The cable insertion opening 33 extends radially outward (to the left in FIG. 6) from the peripheral wall portion 31 of the terminal portion 30 .

The second space 36 communicates with the pin insertion opening 34 . The pin insertion opening 34 opens in a direction intersecting with the cable insertion opening 33 (downward in FIG. 6). The second space 36 is positioned below the first space 35 .

The first space 35 and the second space 36 are partitioned by an insulating wall portion 37 . The insulating wall portion 37 is erected from the periphery of the pin insertion opening 34 , extends horizontally to cover the pin terminal 13 , and then extends upward toward the lid 32 . Between the upper end portion of the insulating wall portion 37 and the lower surface of the lid body 32, a gap is provided through which the conductive portion 43 of the quick-connect terminal 40 passes.

A spring portion 41 of the quick-connect terminal 40 is accommodated in the first space 35 . A contact portion 42 of a quick-connect terminal 40 is accommodated in the second space 36 . The pin terminal 13 moves in the second space 36 as the light source unit 12 rotates and is electrically connected to the contact portion 42 of the quick-connect terminal 40 .

The wires of the power cable 18 are exposed by peeling off the covering at the tip. By inserting the power cable 18 through the cable insertion opening 33 , the wires of the power cable 18 are sandwiched between the spring portions 41 of the quick-connect terminals 40 . As a result, the power cable 18 is electrically connected to the spring portion 41 of the quick-connect terminal 40 .

Here, since the spring portion 41 and the contact portion 42 of the quick-connect terminal 40 are connected by the conductive portion 43 , the power cable 18 and the pin terminal 13 are electrically connected via the quick-connect terminal 40 .

A release hole 38 is formed in the peripheral wall portion 31 on the left side of the terminal portion 30 in FIG. The release hole 38 is open at a position facing the spring portion 41 of the quick-connect terminal 40 . An opening 24 is formed on the opposite side of the flange portion 21 to the surface on which the terminal portion 30 is provided (lower side in FIG. 6). The opening 24 extends in a direction crossing the release hole 38 and communicates with the release hole 38 .

An inner surface of the release hole 38 is provided with an inclined portion 38a. The inclined portion 38a is inclined so that the hole diameter of the release hole 38 decreases from the opening portion 24 toward the spring portion 41 of the quick-connect terminal 40. As shown in FIG.

A through hole 39 is formed in the terminal portion 30 . The through-hole 39 extends substantially parallel to the cable insertion opening 33 and communicates with the release hole 38 .

Here, when removing the power cable 18 from the spring portion 41 of the quick-connect terminal 40, as shown in FIG.

At this time, the release pin 55 is inserted into the release hole 38 while contacting the peripheral edge of the opening 24, so that the release pin 55 is maintained in a predetermined posture. Also, the release pin 55 inserted into the release hole 38 from the opening 24 is guided along the inclined portion 38 a of the release hole 38 and smoothly guided to the spring portion 41 of the quick-connect terminal 40 .

By restricting the free movement of the release pin 55 inside the release hole 38 in this manner, it is possible to prevent the spring portion 41 of the quick-connect terminal 40 from being twisted by the release pin 55 and excessively deformed.

Then, the tip portion of the release pin 55 presses the spring portion 41 of the quick-connect terminal 40 to elastically deform the spring portion 41 . As a result, the engagement state between the power cable 18 and the quick-connect terminal 40 is released, and the power cable 18 can be pulled out from the cable insertion opening 33 .

The socket 20 having the quick-connect terminals 40 as shown in this embodiment may be, for example, a holder socket for a COB (Chip on Board) module.

INDUSTRIAL APPLICABILITY As described above, the present invention has a highly practical effect of being able to suppress excessive deformation of the spring portion of the quick-connect terminal, so it is extremely useful and has high industrial applicability. .

10 lighting equipment 12 light source unit 18 power cable (conductive wire)
20 socket 21 flange portion 22 central opening 24 opening portion 30 terminal portion 33 cable insertion port 38 release hole 38a inclined portion 39 through-hole 40 quick connection terminal 41 spring portion

Claims (5)

A socket for detachably attaching a light source unit,
a flat flange portion;
a terminal portion provided on the flange portion and housing a quick-connecting terminal therein;
The terminal portion is formed with an insertion opening into which a conductive wire connected to the quick-connect terminal is inserted, and a release hole that opens at a position facing the spring portion of the quick-connect terminal,
The socket has an opening formed in the flange portion in a direction intersecting with the release hole and communicating with the release hole. A socket according to claim 1, wherein
An inner surface of the release hole is provided with an inclined portion that is inclined so that the hole diameter of the release hole becomes smaller from the opening toward the spring portion of the quick-connect terminal. 3. The socket according to claim 1 or 2,
A socket in which a through hole extending substantially parallel to the insertion opening and communicating with the release hole is formed in the terminal portion. A socket according to any one of claims 1 to 3,
The flange portion has a central opening formed at a radially central position,
A pair of the terminal portions are provided on the flange portion across the central opening,
The insertion openings are open to one end side of each of the pair of terminal portions in a direction orthogonal to the thickness direction,
A socket in which the openings are opened on a surface of the flange portion opposite to a surface on which the terminal portion is provided. a socket according to any one of claims 1 to 4;
and a light source unit detachably attached to the socket.

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