JPH1040981A - Connector for mounting board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable auto mounting regardless of thickness of a printed wiring board by inserting a body unit upward into a cutout portion provided on the printed wiring board and supporting a lower portion of the body unit with it protruded downward of the printed wiring board by means of a step portion protruded on a side face of the body unit. SOLUTION: This connector for board mounting comprises: a body unit 21 composed of jack or plug and capable of being inserted from the top into a cutout portion 11 provided on a printed wiring board 10, board loading step portions 22' protruded on a side face of the body unit 21, abutting with a top face of the printed wiring board 10 with the body unit 21 inserted into the cutout portion of the printed wiring board 10, and supporting the body unit 21 with a lower portion of the body unit 21 protruded downward of the printed wiring board 10, and a positioning protrusion portion 23 inserted into through holes 13, 13 provided on the top face of the printed wiring board 10 with these step portions 22' and 22' abut with the top face thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for mounting on a printed circuit board.

[0002]

2. Description of the Related Art As electronic devices have become thinner, the amount of surface mount components mounted on the surface of a printed circuit board has been increasing, and jacks such as a power jack have also been mounted on the printed circuit board. . However, unlike other surface mount components such as circuit elements, jacks are difficult to make thin,
This is one factor that hinders the thinning of electronic devices.

A so-called board-fitting type jack has been proposed against such a background. As shown in Japanese Utility Model Application Laid-Open No. 2-29178, a groove is provided at the center in the height direction on both sides of the body, and the board edges on both sides sandwiching the cutout provided on the printed board are provided on both sides. The body is inserted into the notch by fitting it into the groove. According to this configuration, the central portion in the height direction of the body is supported by the printed circuit board, and the body projects above and below the printed circuit board. A similar board mating jack is
No. 26061 also discloses this.

[0004]

However, the conventional board fitting type jack has the following problems.

[0005] The automatic mounting apparatus moves a component from a surface side of the printed board in a direction perpendicular to the board, and mounts the component on the printed board. However, in the conventional board-fitting jack, the body is inserted into the notch by moving the body from the end face side of the printed board in a direction parallel to the board, so that the mounting operation by the automatic mounting apparatus cannot be performed. Was.

A conventional board-fitting jack has a structure in which a printed board is fitted into grooves provided on both side surfaces of a body, so that the thickness of the printed board is limited.

In the conventional board-fitting jack, the terminals protrude outward from both sides and the rear face of the body, face the board surface with the body inserted into the notch, and are soldered to a circuit pattern on the surface. . However, since the body is also fixed by this soldering, when a force in the direction of pulling out the plug is applied to the body, a load is applied to the soldered portion, and there is a risk that the circuit pattern may be peeled.

In the conventional board-fitting jack, when the body is inserted into the cutout portion of the printed board, there is a danger that the terminal will rub the circuit pattern on the board surface and damage the circuit pattern. If the terminals are separated from the surface of the board so as not to rub the circuit pattern when inserting the body, there is a gap between the terminals and the circuit pattern, which can easily cause peeling due to uneven soldering or cause poor conduction. There is. For these reasons, high accuracy is required for the position of the terminal in the height direction.

The present invention has been made in view of the above circumstances, and is capable of automatic mounting regardless of the thickness of a printed circuit board. It is another object of the present invention to provide a board mounting connector that does not cause a risk of damaging a circuit pattern on the surface even when the terminal is brought into contact with the surface of the board.

[0010]

A board mounting connector according to the present invention is constituted by a jack or a plug, and has a body main body which can be inserted from above into a notch provided on a printed circuit board, and a side surface of the body main body. A board mount that protrudes and contacts the upper surface of the printed circuit board with the body inserted into the cutout of the printed circuit board, and supports the body body with the lower part of the body protruding below the printed circuit board And a positioning projection, which is provided on the lower surface of the step and which is inserted into a through hole provided on the upper surface in a state where the step abuts on the upper surface of the printed circuit board. It is characterized by the following.

[0011] Preferably, the terminal protrudes outward from the body main body, and the terminal comes into contact with the upper surface of the printed board in a state where the body main body is supported on the printed board.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing the structure of one example of a board mounting connector embodying the present invention.
3 is a rear view of the connector, FIG. 3 is a bottom view of the connector, FIG. 4 is a side view of the connector, FIG. 5 is a longitudinal side view of the connector, and FIG. 6 is a plan view of a printed circuit board on which the connector is mounted. is there.

This connector is a power jack mounted on the printed circuit board 10. As shown in FIG. 5, the power jack comprises a body 20, a pin 30, a movable contact 40 and a fixed contact 50 incorporated in the body 20.
In FIGS. 1, 2, and 3, only the upper surface of the printed circuit board 10 is indicated by an alternate long and short dash line.

The printed circuit board 10 is, as shown in FIG.
It has a rectangular notch 11 into which the body 20 fits.
On the upper surface of the printed board 10, three soldering lands 12a, 12b, and 12c are provided around the cutout portion 11. The soldering land 12a has the notch 11
And the soldering lands 12b and 12c are on both sides of the rear part of the notch 11. Notched through holes 13 are provided at both edges of the printed circuit board 10 facing each other with the notch 11 therebetween.

The body 20 of the power jack is shown in FIGS.
As shown in FIG. 3, the body body 21 has a rectangular parallelepiped shape. The body main body 21 is large enough to be inserted into the notch 11 of the printed circuit board 10 from above. Projections 22, 22 are formed on both side surfaces of the body 21 so as to project symmetrically to form steps 22 ′, 22 ′ for mounting a substrate. Each projection 22 is integrally formed by projecting a part of the upper half of the body body 21 in the front-rear direction to the side. On the lower surface of the protrusion 22, a positioning protrusion 23 that fits into the through hole 13 of the printed circuit board 10 is provided so as to protrude.

When the body 21 is inserted into the notch 11 of the printed circuit board 10 from above, the steps 22 ′, 22 ′ formed by the projections 22, 22 sandwich the notch 11 of the printed circuit board 10. Touch the edge. Thus, the body 20 is mounted on the printed circuit board 10 with the lower portion of the body 21 protruding below the printed circuit board 10. The positioning projections 23 provided on the lower surfaces of the projections 22 are inserted into the through holes 13 on both sides, so that the body 20 is positioned and fixed in a direction parallel to the printed circuit board 10. Is done.

As shown in FIG. 5, a plug insertion hole 24 is provided in the body main body 21 so as to open to the front side. A contact piece insertion hole 25 is provided above the insertion hole 22.
Are provided on the rear side. The pin 30 is concentrically inserted into the plug insertion hole 24 from the rear side. A terminal 31 provided at the rear of the pin 30 protrudes rearward of the body 21. The movable contact piece 40 and the fixed contact piece 50 are inserted into the contact piece insertion hole 25 from the rear side.

When the plug is not inserted into the plug insertion hole 24, the movable portion 41 of the movable contact 40
Touch 0. When a plug is inserted into the plug insertion hole 24, the pin 30 is inserted into the plug, and the movable portion 41 of the movable contact 40 is separated from the fixed contact 50.

The fixed part 42 of the movable contact piece 40 has a terminal 4
3, and the terminal 43 projects rightward when viewed from the front of the body main body 21. The terminal 51 of the fixed contact 50 protrudes leftward when viewed from the front of the body 21, opposite to the terminal 43 of the movable contact 40. And terminals 31, 43, 5
Reference numeral 1 denotes a state in which the body 20 is mounted on the printed circuit board 10 and the soldering lands 12a, 12b,
Lightly abut against 12c from above.

FIG. 7 is a front view showing the structure of another example of a board mounting connector embodying the present invention, FIG. 8 is a rear view of the connector, FIG. 9 is a cross-sectional plan view of the connector, and FIG.
0 is a bottom view of the connector, and FIG. 11 is a side view of the connector.

This connector is the same power jack as the above connector. The connector is a point where the movable contact piece 40 and the fixed contact piece 50 are located on the side of the pin 30, and accordingly, the terminal 43 of the fixed contact piece 40 protrudes to the left as viewed from the front, and the fixed contact piece The difference is that the terminal 51 of the piece 50 projects to the right as viewed from the front. Other configurations are substantially the same as those of the connector.

These power jacks have the following features. The body main body 21 is inserted into the notch 11 provided on the printed circuit board 10 from above. Then, protrusion 2
Steps 22 ′, 22 ′ formed by the two 2, 22 abut on both edges of the printed circuit board 10 sandwiching the cutout 11.
As a result, the body 20 is mounted on the printed circuit board 10 with the upper and lower portions protruding above and below the printed circuit board 10, respectively. Therefore, the protruding length of the body 20 from the printed circuit board 10 can be suppressed, which contributes to the thinning of the electronic device.

Since the body 20 is mounted on the printed circuit board 10 from above, the automatic mounting by the automatic mounting apparatus is performed regardless of the thickness of the printed circuit board 10 regardless of the type in which the body 20 is fitted into the cutout portion 11. Is possible.

With the body 20 mounted on the printed circuit board 10, the terminals 31, 43, and 51 are soldered lands 12a, 12b, and 12c provided on the upper surface of the printed circuit board 10.
Therefore, peeling and poor conduction due to uneven soldering can be reliably prevented. Also, terminals 31, 4
The reduction in the positional accuracy required in the height direction of the terminals 3, 51 simplifies the molding of the terminals 31, 43, 51.

Since the body 20 is mounted on the printed circuit board 10 from above, the terminals 31, 43, and 51 are in contact with the soldering lands 12a, 12b, and 12c. There is no danger that the terminals 31, 43, and 51 will rub circuit patterns such as.

Positioning projections 23, 23 are provided on the lower surfaces of the projections 22, 22 forming the steps,
The body 20 is positioned and fixed in a direction parallel to the substrate because it is fitted in the through holes 13. For this reason, even if a force in the pull-out direction is applied to the body 20, it is possible to prevent the force from being transmitted to the soldered portions of the terminals 31, 43, and 51. Therefore, peeling of the circuit pattern due to external force in the pulling-out direction can be prevented.

Although the connectors are all power jacks, the present invention can be applied to board-mounted jacks other than the power jack, and can also be applied to board-mounted plugs.

[0028]

As described above, in the board mounting connector according to the present invention, the stepped portion in which the body is inserted from above into the cutout provided in the printed board and projecting from the side surface of the body is provided. As a result, the body is supported in a state where the lower part of the body protrudes below the printed circuit board, so that the length of the body protruding from the printed circuit board can be suppressed, regardless of the thickness of the printed circuit board. Mounting work by an automatic mounting device is possible.

Since the body is mounted on the printed circuit board from above, there is no danger of the terminals rubbing the circuit pattern on the circuit board during mounting, even when the terminals are in contact with the upper surface of the printed circuit board. Then, by bringing the terminal into contact with the upper surface of the printed circuit board, peeling and poor conduction due to uneven soldering can be reliably prevented. In addition, since the positional accuracy required in the height direction of the terminal is reduced, molding of the terminal and the like can be simplified.

By providing a positioning projection on the lower surface of the step portion and fitting it into a through hole of the printed board, the body is fixed in a direction parallel to the board, so that a force is applied to the body in the pulling-out direction. However, the force can be prevented from being transmitted to the soldered portion of the terminal. Therefore, the peeling of the circuit pattern due to the external force in the pulling-out direction can be prevented.

[Brief description of the drawings]

FIG. 1 is a front view showing the structure of an example of a board mounting connector embodying the present invention.

FIG. 2 is a rear view of the connector.

FIG. 3 is a bottom view of the connector.

FIG. 4 is a side view of the connector.

FIG. 5 is a vertical side view of the connector.

FIG. 6 is a plan view of a printed circuit board on which the connector is mounted.

FIG. 7 is a front view showing the structure of another example of the board mounting connector embodying the present invention.

FIG. 8 is a rear view of the connector.

FIG. 9 is a cross-sectional plan view of the connector.

FIG. 10 is a bottom view of the connector.

FIG. 11 is a side view of the connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Printed circuit board 11 Notch 13 Through-hole 20 Body 21 Body main body 22 Protrusion for forming step 22 'Step 23 Positioning protrusion provided on the lower surface of step 30 Pin 31 Terminal 40 Movable piece 43 terminal 50 fixing piece 51 terminal

Claims (3)

[Claims] 1. A body which is constituted by a jack or a plug and can be inserted from above into a notch provided in a printed board, and a body protruded from a side face of the body and is provided in a notch of the printed board. A step for mounting the board that supports the body in a state where the lower part of the body protrudes below the printed circuit board while being in contact with the upper surface of the printed circuit board in the inserted state, and is provided on the lower surface of the step. A board mounting connector comprising: a positioning projection inserted into a through hole provided on the upper surface of the printed circuit board in a state where the step portion is in contact with the upper surface of the printed circuit board. 2. The board mounting method according to claim 1, wherein the terminal projects from the body main body to the outside, and the terminal contacts the upper surface of the printed circuit board in a state where the body main body is supported on the printed circuit board. Connector. 3. The board mounting connector according to claim 1, wherein the body is a jack.