JP3006832U - Insertion type connector - Google Patents

Abstract

(57) [Abstract] [Purpose] Perform wiring work on a small printed circuit board easily. [Structure] The insertion type connector 1 includes a housing 2 that is inserted into a through hole 51 formed in a substrate 5 and attached to the substrate 5, and a housing 2 that is held by the housing 2 and the housing 2 is attached to the substrate 5. The contact 3 is in contact with the conductive layers 52 and 53 on the substrate 5. In addition, the housing 2 includes a contact 3 and a conductive layer 5.
Positioning means 23c for positioning with respect to the substrate is provided so as to contact the substrates 2 and 53.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector attached to a small printed circuit board.

[0002]

[Prior art]

 Small printed circuit boards are often used, for example, when mounting decoration lamps for pachinko machines or interior lighting lamps for automobiles. In particular, a printed circuit board of a type in which the lamp is directly inserted and held in a through hole formed in the board is preferably used because it can be easily attached to a pachinko machine or an automobile as a board unit. Conductive layers of a positive electrode and a negative electrode are formed on the surface of such a printed circuit board and the inner surface of the through hole. When the lamp is inserted into the through hole, the pole lead wires extending along the side surface of the lamp come into contact with the pole conductive layers on the inner surface of the through hole. Then, the electric cable connected to the power supply etc. is soldered to each conductive layer on the surface of the board.

[0003]

[Problems to be solved by the device]

 However, there is a problem in that the soldering (wiring work) to the conductive layer of the electric cable is time-consuming and time-consuming, which causes a reduction in the overall efficiency of the board unit assembling work.

The present invention has been made in view of the above problems, and an object thereof is to provide an insertion type connector that can easily perform wiring work on a small printed circuit board.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the insertion type connector of the present invention includes a housing inserted into a through hole formed in a board and attached to the board, and a housing held by the housing, and the housing is attached to the board. Contact that comes into contact with the conductive layer on the surface of the substrate.

It is desirable that the housing be provided with positioning means for positioning the housing with respect to the substrate so that the contacts come into contact with the conductive layer.

[0007]

[Action]

 Such an insertion type connector (housing) is originally attached to the board by using a through hole formed in the board to hold a lamp or the like. Moreover, it is possible to arbitrarily select the through hole to be used (to insert the housing). Then, in the state of being attached to the substrate, the contact comes into contact with the surface of the conductive layer formed on the substrate or the surface of the through hole. In this way, wiring work can be performed on the substrate simply by inserting it into the through hole.

If the housing is provided with the positioning means, it is possible to prevent the connector (contact) from rotating with respect to the substrate (conductive layer) during use of the substrate unit.

[0009]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. 1 to 4 show an insertion type connector according to the present invention. The connector 1 is composed of an insulator housing 2 extending in the vertical direction and a contact 3 held by the housing 2.

The housing 2 has a cylindrical base portion 21 extending in the up-down direction, protrusions 22 protruding outward from the left and right side surfaces of the base portion 21, and a front and rear surface of the base portion 21. The elastic latch 23 extends upward from the end position, and the contact holding portion 24 is formed so as to extend upward from the center of the upper surface of the base portion 21 in the front-rear direction.

The height of the base portion 21 is about 1/3 of the whole, and the overhang portion 22 is located at a position higher than the lower end of the base portion 21 and above the upper surface of the base portion 21 (about 1/2 of the whole). Has been extended to. The upper surface of the overhanging portion 22 is formed flat. The elastic latch 23 is composed of an elastic portion 23a extending vertically in a strip shape and a locking portion 23b formed on the upper portion of the elastic portion 23a. As shown in FIG. 2, the outer peripheral surface of the locking portion 23b is formed in a curved surface shape that bulges outward in the front-rear direction, and protrudes outward in the front-rear direction as it goes downward. The lower surface of the locking portion 23b is parallel to the upper surface of the overhanging portion 22. Further, as shown in FIGS. 1 and 2, between the lower surface of the locking portion 23b of each elastic latch 23 and the lower end of the base portion 21, a semi-cylindrical boss extending vertically and bulging forward ( A positioning means) 23c is formed.

As can be seen from FIG. 2, the contact holding portion 24 has substantially the same front and rear width (left and right in FIG. 2) as the protruding portion 22. The front surface and the lower surface of the overhang portion 22 are formed in a flat shape, and the left and right (upper and lower sides in FIG. 2) side surfaces are formed in a curved shape so as to be connected to the outer peripheral surface of the base portion 21 (the inner peripheral surface of the overhang portion 22). Has been done. On the left and right sides of the contact holding portion 24, contact receiving grooves 24a that extend vertically (in a direction perpendicular to the paper surface in FIG. 2) and open outward in the left-right direction are formed. Further, as shown in FIG. 3, a contact receiving hole 21a extending vertically is formed in the base portion 21, and the contact receiving groove 24a and the contact receiving hole 21a are vertically connected to each other.

Further, a latch receiving groove 24b that opens into the contact receiving groove 24a is formed near the center of the contact holding portion 24. Further, as shown in FIGS. 2 and 4, guide grooves 25 extending from the lower side of the latch receiving groove 24b to the lower end of the base portion 21 are formed on the front and rear side surfaces facing the contact receiving groove 24a and the contact receiving hole 21a. Has been done.

As shown in FIG. 5, the contact 3 includes a base portion 31 extending vertically in a strip shape, a contact portion 32 bent downward from the upper end of the base portion 31 in a substantially U shape, and a base portion. First caulking portion 33 extending forward from both widthwise sides at the vertical middle portion of 31 and both widthwise sides at the lower end of base portion 31. It is composed of a second caulking portion 34 that extends forward longer than the first caulking portion 33. The width of the base portion 31 is wider than the width of the contact portion 32, and right-angled shoulder portions 31a are formed on both sides in the width direction at the upper end of the base portion 31. The middle part of the contact part 32 in the up-down direction protrudes in a direction away from the base part 31 as it goes downward, and the lower part is curved in a substantially S shape. A latch 32 a is formed on the back surface of the contact portion 32 so as to project rearward and obliquely downward.

Two such contacts 3 are prepared, the conductor portion of the positive electrode electric cable 35 is crimped on the first crimp portion 33 of the contact 3 for positive electrode, and the second crimp portion 34 of The coated portion is crimped (see FIG. 6). Further, the conductor portion of the negative electric cable 36 is crimped to the first crimp portion 33 of the negative contact 3, and the covering portion of the cable 36 is crimped to the second crimp portion 34.

As shown in FIG. 6, the contact 3 to which the electric cable 35 is attached (connected) in the contact holding hole 21 a while press-fitting both widthwise ends of the base portion 31 into the guide grooves 25 of the housing 2 as shown in FIG. Inserted in. Then, the contact 3 is positioned in the vertical direction by the shoulder 31a contacting the upper end of the guide groove 25 and the latch 32a protruding below the latch receiving groove 24b. At this time, the contact portion 32 protrudes into the contact receiving groove 24a, and the most protruding portion in the direction away from the base portion 31 protrudes outward from the left and right end surfaces of the contact holding portion 24. The electric cables 35 and 36 extend to the outside from the lower end openings of the contact holding holes 21a.

The connector 1 thus assembled is inserted from below into a lamp hole 51 formed in the substrate 5, as shown in FIG. Here, the substrate 5 is formed in a rectangular plate shape as shown in detail in FIG. Further, lamp holes 51 penetrating the substrate 5 are formed at three positions in the longitudinal direction of the substrate 5. Then, two conductive layers 52 and 53 are formed on the substrate 5. These conductive layers 52 and 53 are formed around the lamp hole 51 on the upper surface of the substrate 5 and on the inner peripheral surface of each lamp hole 51, and one conductive layer (hereinafter referred to as the positive electrode conductive layer) 52 is formed in each lamp. The other conductive layer (hereinafter referred to as the negative electrode conductive layer) 53 is formed along the right half (lower side in FIG. 7) of the hole 51 and along the left half (upper side in FIG. 7). . The conductive layers 52 and 53 formed around each lamp hole 51 are connected to each other by the conductive layer for the same polarity by the conductive layer 53 for bridge formed on the upper surface of the substrate 5. In addition, a boss receiving groove 54 having a semicircular concave cross section is provided in the front and rear positions on the inner peripheral surface of each lamp hole 51 and sandwiched between the two conductive layers 51 and 52 in an upward and downward direction. It is formed to extend.

As shown in FIG. 1, the lamp 6 is installed in one or two of the three lamp holes 51. The lamp 6 has a socket portion 61 in the lower portion, and two contact cables (a positive electrode contact cable 62 and a negative electrode contact cable 63) are connected to the lower end of the socket portion 61. The contact cables 62 and 63 extend upward along the side surface of the socket portion 61 at positions separated from each other. A semi-cylindrical boss 61a extending vertically is formed at the front and rear positions of the socket portion 61. When mounting the lamp 6 in the lamp hole 51, the lamp 60 (socket portion 61) is inserted into the lamp hole 51 from above while receiving the bosses 61a in the boss receiving grooves 54, and the positive electrode contact cable 62 is inserted. Are brought into contact with the positive electrode conductive layer 52, and the negative electrode contact cable 63 is brought into contact with the negative electrode conductive layer 53, respectively. By receiving each boss 61a in each boss receiving groove 54, rotation of the lamp 6 with respect to the substrate 5 is prevented.

Further, as shown in FIG. 1, the connector 1 is inserted into one of the three lamp holes 51 in which the lamp 6 has not been inserted (which can be arbitrarily selected). At this time, it is preferable to predetermine the approximate position of the connector 1 so that the positive electrode contact 3 is located on the positive electrode conductive layer 52 side and the negative electrode contact 3 is located on the negative electrode conductive layer 53 side. When the connector 1 is inserted into the lamp 6, first, the inner peripheral surface of the lamp hole 51 contacts the outer peripheral surface of the locking portion 23b of the elastic latch 23, and the elastic portion 23a approaches the front and rear surfaces of the contact holding portion 24. Transforms to (inside). Therefore, the contact holding portion 24 and the elastic latch 23 can smoothly enter the lamp hole 51.

Further insertion of the connector 1 is prevented at a position where the upper surface of the overhanging portion 22 of the housing 2 contacts the lower surface of the substrate 5 (conductive layers 52, 53). Then, when the connector 1 is appropriately rotated to align the positions of the bosses 23c and the boss receiving grooves 54, the locking portion 23b that has been pulled out above the lamp hole 51 spreads outward due to the elastic force of the elastic portion 23a. The boss 23c is received in each boss receiving groove 54, and the lower surface of the locking portion 23b projects onto the upper surface of the substrate 5 (conductive layers 52, 53). The locking portion 23b prevents the connector 1 from coming out downward with respect to the lamp hole 51. By receiving each boss 23c in each boss receiving groove 54, in the connector 1, the contact portion 32 of the contact 3 for the positive electrode contacts the conductive layer 52 for the positive electrode, and the contact portion of the contact 3 for the negative electrode. 32 is positioned so as to come into contact with the negative electrode conductive layer 53, and rotation thereafter is prevented.

After being attached to the board 5, the elastic latch 23 and the contact holder 24 are pulled out below the lamp hole 51 while pushing the locking portion 23b inward, so that the connector 1 can be easily removed from the board 5. It can be removed.

[0022]

[Effect of device]

 As described above, the insertion type connector of the present invention can be inserted into the through hole formed in the substrate to originally insert and hold the lamp or the like and can be attached to the substrate. Moreover, the through hole to be inserted can be arbitrarily selected from the through holes formed in the substrate. Then, when inserted into the through hole, the contact comes into contact with the conductive layer formed on the substrate. For this reason, wiring of the external circuit (power supply, etc.) to the conductive layer can be performed simply by inserting this connector into the through hole, and the wiring work is easier than in the case of directly soldering the wire to the conductive layer. Can be done in

If the connector is provided with positioning means for positioning the contact with respect to the conductive layer so that the contact comes into contact with the conductive layer, the connector moves (rotates) with respect to the substrate while the board unit is in use. It is possible to reliably prevent the situation where the above contact is broken.

[Brief description of drawings]

FIG. 1 is a perspective view of an insertion type connector according to the present invention.

FIG. 2 is a plan view of a housing that is a component of the connector.

FIG. 3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is a bottom view of the housing.

FIG. 5 is a perspective view of a contact that is a component of the connector.

FIG. 6 is a sectional view of the connector.

FIG. 7 is a plan view of a board into which the connector is inserted.

FIG. 8 is a diagram illustrating the use of the connector.

[Explanation of symbols]

 1 Insertion type connector 2 Insulator housing 23c Boss 3 Contact 5 Board 51 Lamp hole 6 Lamp

Claims (2)

[Scope of utility model registration request] 1. A connector which has a through hole for inserting and holding an electric component such as a lamp and which is attached to a substrate having a conductive layer formed on a surface and an inner surface of the through hole, wherein the connector is inserted into the through hole. An insert-type connector comprising: a housing that is attached to the substrate and is held by the housing; and a contact that contacts the conductive layer when the housing is attached to the substrate. 2. The insertion type connector according to claim 1, wherein the housing is provided with positioning means for positioning the housing with respect to the substrate so that the contact comes into contact with the conductive layer.