JP2000173697A - Board mounting type connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To satisfy a standard by accurately arranging contact parts of male- type contacts by supporting these with inserting of molding on plural module blocks by grouping plural male-type contacts, and engaging the plural module blocks in a recess/projection shape with adjacent module blocks. SOLUTION: A connector is mounted with module blocks 10 for respectively supporting signal transmitting male-type contacts 12 grouped into several pieces each into a form cap housing 2 by insert molding and module blocks 20 for arranging electric power transmitting male-type contacts 22 grouped four pieces each on both ends. Male-type contacts 12, 22 have a side surface engaging projecting part 10a and the other side surface engaging recessed part 10b of the module blocks 10 by forming both contact parts 13, 23 and mounting parts 14, 24 in a right-angled L shape, and adjacent modulae blocks are fitted to and engaged with each other. Thus, the contact parts 13, 23 are accurately arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board-mounted connector, and more particularly, to a board-mounted connector having a compliant structure in which a contact mounting portion of a contact to a circuit board is mounted in a via hole of the circuit board in a solderless manner. A multi-contact connector.

[0002]

2. Description of the Related Art An electric contact pin having a compliant structure connected to a via hole of a printed circuit board in a solderless manner is disclosed in, for example, Japanese Patent Application Laid-Open No. 61-110797.

A large number of contacts, which are attached to a circuit board and extend in a substantially L-shape so as to be fitted and connected to a mating connector from a direction perpendicular to the board surface of the circuit board, form a plurality of rows. A board-mounted right angle connector having a compliant structure in which a portion for attaching these contacts to a circuit board is connected to a via hole of the circuit board is also disclosed in, for example, US Pat.
This is known from Japanese Patent Publication No. 90787.

Further, a plurality of contacts in which a portion to be attached to a circuit board and a fitting portion to a mating connector form a right angle are grouped, and each of the plurality of contacts is insert-molded into a plurality of module blocks and supported by a board mounting type. A multi-contact connector is also disclosed in, for example,
No. 8 is known.

[0005]

By the way, in a board-mounted connector having a compliant structure in which a portion for attaching an L-shaped contact to a circuit board is connected to a via hole of the circuit board, a compliant connector is used. When the structural part is pushed into the via hole of the circuit board, the contact may be slightly bent due to the force applied to the contact. In the case of a contact, the structure disclosed in the above-mentioned US Patent Publication makes it difficult to accurately align the contact portions of the male contacts with the female contacts.

In order to accurately align the contact portions of the male contacts, it is conceivable to make the contacts into a module block type as disclosed in Japanese Patent Application Laid-Open No. 4-181668.

On the other hand, when this connector is used for connection between electronic devices mounted on a vehicle, there is a problem that the connector for a vehicle must satisfy the standard that the terminal holding force in the direction of the fitting port is 6 kgf or more. Therefore, it is impossible to satisfy the above-mentioned standard at all simply by forming the contact in the form of a module block.

In view of the above circumstances, the present invention has as its first object to provide a board-mounted connector capable of accurately aligning contact portions of male contacts and satisfying the above-mentioned standards. It is the purpose of.

It is a second object of the present invention to provide a board-mounted connector which can securely mount a mounting portion having a compliant structure of a male contact to a circuit board. is there.

[0010]

In order to achieve the first object, the present invention is mounted on a circuit board and fitted and connected to a mating connector from a direction orthogonal to the board surface of the circuit board. A plurality of rows extending substantially in an L-shape as described above, and a mounting portion of these contacts to the circuit board has a compliant structure connected to a via hole of the circuit board. The contacts are composed of male contacts, a plurality of which are grouped and insert-molded and supported by a plurality of module blocks, respectively, and each of the plurality of module blocks is unevenly engaged with an adjacent module block. It is characterized by having.

It is preferable that the plurality of module blocks have a concave / convex engaging portion as key means so that required ones can be mutually engaged.

It is preferable that at least a part of the concave / convex engaging portion is formed of a ridge and a groove extending in parallel with the plate surface of the circuit board.

It is preferable that a predetermined number of module blocks be engaged with each other and then fixed to the cap housing.

Further, in order to achieve the second object, it is preferable that the plurality of module blocks are attached to the cap housing with at least a part thereof protruding from the cap housing.

[0015]

According to the present invention, since a plurality of male contacts are grouped and insert-molded and supported by a plurality of module blocks, the contact portions of the male contacts are accurately aligned. be able to.

Further, since each of the plurality of module blocks is engaged with the adjacent module block in an uneven manner, the force applied to the module block alone is distributed to other module blocks via the adjacent module block. Therefore, a high terminal holding force can be secured not only for the female contact of the mating connector but also for the via hole of the circuit board, and the above-described standard for the terminal holding force can be easily satisfied. it can.

Further, when the plurality of module blocks are attached to the cap housing with at least a part of them protruding from the cap housing, by pressing the portions protruding from the cap housing, the contact is made. Can be securely pushed into the via hole of the circuit board.

[0018]

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

FIG. 1 is a perspective view showing an overall configuration of an embodiment of a board-mounted connector according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a front view thereof, and FIG. 4 is an exploded perspective view thereof. 5
5A and 5B are cross-sectional views for explaining the operation of the present embodiment in comparison with a conventional product, and FIG. 6 is a cross-sectional view along line VI-VI in FIG.

This connector 1 has a large number of module blocks each of which supports two or four grouped signal transmission male contacts 12 by insert molding in an insulating cap housing 2 formed in a frame shape. 10 and four module blocks 20 arranged on both sides of the group of module blocks 10 each supporting the male contacts 22 for power transmission grouped by four each by insert molding.

Small male contacts 12 for each signal transmission
As is clear from FIG. 4, the contact portion 13 to the mating connector and the mounting portion 14 to the circuit board having a compliant structure are formed in an L-shape which is substantially at right angles. The male contact 22 is also formed in an L-shape in which a contact portion 23 for a mating connector and a mounting portion 24 for a circuit board having a compliant structure are substantially perpendicular to each other.

As is apparent from FIGS. 4 and 5 (a), an engaging projection 10a is formed on one side of each module block 10, and the engaging side of the adjacent module block 10 is formed on the other side. An engaging concave portion 10 is formed to engage with the mating convex portion 10a.
Are engaged in both directions of the fitting / extraction direction and the direction of attachment / detachment to / from the circuit board. In addition, these engaging concave and convex portions 10a and 10b constitute key means so that required module blocks 10 are engaged with each other.

Further, at least a part of the engaging projection 10a is formed as a ridge extending in the extending direction of the contact portion 13 of the male contact 12 (a direction parallel to the circuit board surface), as is apparent from FIG. Correspondingly, at least a part of the engaging recess 10b is a groove extending in the same direction as the ridge. After a predetermined number of module blocks 10 are engaged with each other, they are mounted and fixed to the cap housing 2.

A step 10c is formed on the upper surface of each module block 10 so that the rear side is higher in the direction of insertion into the cap housing 2, and this step 10c is
When the module block 10 is mounted on the cap housing 2, the insertion position of the module block 10 is regulated by contacting the rear edge 2 a of the top wall of the cap housing 2. Therefore, as is apparent from FIGS. 1 and 2, the module block 10 has a rear portion from the step portion 10c in a state where the module block 10 is mounted on the cap housing 2.
From the rear.

On the other hand, two ends of the cap housing 2
Engagement projections 20a and engagement recesses (not shown) are similarly formed on the side surfaces of the module blocks 20 which are mounted adjacent to each other, but are mounted on the outermost end of the cap housing 2. As shown in FIG. 6, the engagement protrusion 20 a formed on the side surface of the module block 20 facing the inner wall surface of the side wall 2 b of the cap housing 2 is formed on the inner wall surface of the side wall 2 b of the cap housing 2. It is engaged with a groove 2c extending in the insertion direction of the block 20.

A step 20c is also formed on the upper surface of the module block 20, and this step 20c contacts the rear edge 2a of the top wall of the cap housing 2 when the module block 20 is mounted on the cap housing 2. As a result, the insertion position of the module block 20 is regulated, and the engagement piece formed between each of the two notches 2d, 2d cut close to each other forward from the rear edge 2a of the top wall. The module block 20 is elastically suppressed by 2e.

As is apparent from the above description, in this connector 1, a plurality of male contacts 12, 22 are grouped and insert-molded and supported by the module blocks 10, 20, respectively. The contact portions 13, 23 of the male contacts 12, 22 with the female contacts of the mating connector can be accurately aligned.

As for the module block 10, for example, as shown in FIG. 5A, each of the module blocks 10
0, the force applied to the module block 10 alone can be dispersed to a number of other module blocks via the adjacent module blocks, so that the contact with the female contact of the mating connector can be achieved. A high terminal holding force of the portions 13 and 23 can be secured, and the above-described standard for the terminal holding force can be easily satisfied. By the way, in the conventional module block 10 ', as shown in FIG. 5B, the adjacent module blocks are not engaged with the concave and convex, so that the force is not distributed to other module blocks, and the desired terminal holding is achieved. You will not be able to secure power.

Further, the holding force between the via hole of the circuit board and the compliant structure portion of the contact mounting portion 14 is also ensured by the concave-convex engagement between the adjacent module blocks.

A predetermined number of module blocks 10
Are fitted to the cap housing 2 after engaging with each other, so that the module block 10 can be easily mounted to the cap housing 2.

Further, a plurality of module blocks 10,
20 are mounted on the cap housing 2 with their rear portions protruding rearward from the rear edge 2a of the top wall of the cap housing 2, and these protruding portions have a compliant structure of the male contacts 12, 22. Since the portions protruding from the cap housing 2 are pressed just above the mounting portions 14 and 24 to the circuit board, the compliant structure portions of the mounting portions 14 and 24 are securely inserted into the via holes of the circuit board. It will be possible to push in.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of an embodiment of a board-mounted connector according to the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a front view thereof.

FIG. 4 is an exploded perspective view thereof.

5A and 5B are cross-sectional views illustrating the operation of the board-mounted connector according to the present embodiment in comparison with a conventional product. FIG. 5A illustrates the present embodiment, and FIG. Show

FIG. 6 is a sectional view taken along the line VI-VI of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector 2 Cap housing 10, 20 Module block 10a, 20a Engagement convex part 10b Engagement concave part 10c, 20c Step part 12, 22 Male contact 13, 23 Contact part 14, 24 Mounting part

Claims (2)

[Claims] 1. A plurality of contacts which are attached to a circuit board and extend in a substantially L-shape so as to be fitted and connected to a mating connector from a direction perpendicular to the board surface of the circuit board, and constitute a plurality of rows. In a board-mounted connector having a compliant structure in which an attachment portion of the contact to the circuit board is connected to a via hole of the circuit board, the contact includes a male contact, and a plurality of the contacts are grouped. A board-mounted connector, wherein each of the plurality of module blocks is insert-molded and supported, and the plurality of module blocks are unevenly engaged with adjacent module blocks. 2. A method according to claim 1, wherein said plurality of module blocks have a part thereof projecting from a cap housing.
The board-mounted connector according to claim 1, wherein the connector is mounted on the cap housing.