JPS6336622Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a printed circuit board connector.

BACKGROUND ART Conventionally, there has been a type of connector for printed circuit boards as illustrated in a partial cross-sectional view in FIG. This printed circuit board connector has a female housing 2 in which a large number of female contacts 1 are arranged in a row.
and a male housing 4 in which a large number of male contacts 3 each of which can contact the female contacts 1 are arranged in an array.
It is made up of. The female housing 2 is installed on the printed circuit board 5 to which circuit connection is to be made by passing the connecting portion 1A at one end of each female contact 1 through a through hole 5A communicating with a circuit conductor of the printed circuit board 5. In this state, the connecting portion 1A of each female contact 1 and the circuit conductor of the printed circuit board 5 are electrically connected by soldering by the dip method as shown by reference numeral 6. On the other hand, the male housing 4 is attached to the mounting panel 7 with the male contacts 3 protruding. For the male contacts 3 arranged in this way, the substrate 5
When the combination of the substrate 5 and the female housing 2 is fitted by passing through the opening 5B of the female housing 2 and the male contact insertion opening 2A of the female housing 2, each male contact 3 is inserted into the inner wall of the female housing 2 and the female contact 1. so that it is sandwiched between the contact part 1B of
Electrical contact is made between each male contact 3 and each female contact 1. In this way, mutual circuit connections are made.

However, this type of conventional printed circuit board connector has had the following problems. That is, as described above, when dip soldering the circuit conductor of the board 5 and the connection part 1A of each female contact 1, the flux is absorbed by the contact part 1B of each female contact 1 due to the flux suction effect, etc.
Contact portion 1B of female contact 1
In order to prevent the contact portion 1B from being affected by these fluxes, it was necessary to design the contact portion 1B as far away from the connection portion 1A as possible. Therefore, the height H of the contact portion 1B from the top surface of the substrate 5 inevitably becomes high, and the length of the male contact 3 that comes into contact with the contact portion 1B has to be increased unnecessarily. Furthermore,
In this conventional connector structure, if the connecting part 1A and the contact part 1B are integrated, the prying force that acts when the contact part 1B and the male contact 3 come into contact is directly transmitted to the connecting part 1A. , its dip part 6
This would have had a negative impact on the

SUMMARY OF THE INVENTION An object of the present invention is to provide a printed circuit board connector that eliminates the above-mentioned drawbacks of conventional connectors.

Next, the present invention will be described in detail with regard to embodiments of the present invention based on FIGS. 2 to 8 of the accompanying drawings.

2, 3, 4, and 5 are perspective views showing respective parts of a printed circuit board connector as an embodiment of the present invention. FIG. 2 shows the pin header 10.
It consists of an insulating housing 11 and a large number of connecting pins 12 as connecting terminals arranged in a plurality of ways so as to protrude vertically from the insulating housing 11. Guide holes 13 are formed at both ends of the insulating housing 11 to engage with guide pins of a male contact array insulating housing, which will be described later.Further, the insulating housing 11 has guide holes 13 that protrude downward and are temporarily fixed to a printed circuit board. A metal fitting 14 for temporarily fixing the board is provided. Furthermore, the insulating housing 11
is formed with an upright peripheral wall 15 that creates a space for receiving a portion of the female contact array described below. Locking openings 16 are formed in both end faces of the upright outer circumferential wall 15 for engaging and fixing a lock for fixing a female contact array, which will be described later.

FIG. 3 shows a female contact array 20, which is made of an insulating material and has one female contact, which will be described later.
It has a female contact compartment 21 for accommodating two female contact compartments.
Fixing locks 22 that engage with the locking openings 16 of the insulating housing 11 of the pin header 10 are formed on both end walls of the array 20, and each compartment 21 is formed on both side walls of the array 20. In each case, a locking opening 23 is formed which engages with a locking tongue piece of a female contact, which will be described later. Further, it is preferable to form protrusions 24 on one side wall of the array body 20 for engaging with the grooves 17 in the inner wall of the upright outer circumferential wall 15 of the insulating housing 11 for mutual positioning.

FIG. 4 shows a female contact 30, which is formed by punching out a conductive sheet with spring properties and then bending it into a box shape. A locking tongue 31 is formed which engages with the locking opening 23 of the female contact array 20. Further, the side wall of the connecting pin portion 32 of the female contact 30 is provided with an inwardly projecting contact portion 12 of the connecting pin 12 of the pin header 10.
A connecting pin contact portion 33 that makes electrical contact with A is formed. Further, on the side wall of the female contact portion 34 of the female contact 30, a female contact portion 3 that protrudes inward and electrically contacts a male contact to be described later is provided.
5 is formed. As clearly shown in FIG. 7, the position of this female contact part 35 is below the position of the connecting pin contact part 33, and the female contact array 20 is connected to the pin header 10 attached to the printed circuit board 50. The female contact portion 35 is located close to the surface of the printed circuit board 50 when the contact portion 35 is pressed. One female contact 30 is accommodated in each of the female contact compartments 21 of the female contact array 20 shown in FIG.

FIG. 5 shows a male contact array 40, which includes an insulating housing 41 and a large number of male contacts 42 arranged therein. The insulating housing 41 includes the insulating housing 1 of the pin header 10 shown in FIG.
Guide pins 43 are provided that engage the guide holes 13 at both ends of the holder.

Next, a method of using such a printed circuit board connector will be explained. First, as shown in a partial sectional view in FIG. 6, only the pin header 10 is attached to the printed circuit board 50 to be connected. This is done by inserting the connecting portions 12B of the connecting pins 12 of the pin header 10 into the through holes 51 connected to the circuit conductors of the printed circuit board 50, and connecting the connecting portions 12B and the circuit conductors as shown by reference numeral 52. , by making an electrical connection by dip soldering. pin header 1
As clearly shown in FIG. 6, in this embodiment, the connecting pins 12 arranged at
The two contact portions 12A are arranged in one row, but the connecting portions 12B are arranged in two alternating rows. Next, with respect to the pin header 10 attached to the printed circuit board 50 in this way,
As shown in a partial cross-sectional view in FIG. 7, the female contact array 20 containing the female contacts 30 is fitted. At this time, the contact portion 12A of the connecting pin 12 disposed on the pin header 10 is inserted into the interior from the lower end of the connecting pin portion 32 of the female contact 30, and electrically comes into contact with the connecting pin contact portion 33 protruding inward. do. On the other hand, as shown in FIG. 7, the male contact array 40 is attached to the mounting panel 60 by an appropriate method so that the male contacts 42 and guide pins 43 protrude upward. lastly,
Pin header 1 assembled on printed circuit board 50
0, female contact 30 and female contact array 2
0 is coupled to the male contact array 40 such that the guide pins 43 are inserted into corresponding holes (not shown) in the printed circuit board 50 and guide holes 13 in the insulating housing 11 of the pin header 10. At this time, each male contact 42 of the male contact array 40 installed on the mounting panel 60 is inserted into a female through the corresponding hole 53 of the printed circuit board 50 and the corresponding male contact insertion hole 25 of the lower end of the female contact array 20. It is inserted into the female contact portion 34 of the contact 30 from the lower end thereof, and makes electrical contact with the female contact portion 35 . In this way, each male contact 42 is connected to the female contact portion 35 of the female contact 30,
It is electrically connected to the circuit conductor of the printed circuit board 50 through the female contact body, the connecting pin contact portion 33 of the female contact 30, the connecting pin 12, and the dip soldering portion 52.

Since the printed circuit board connector of the present invention has the above-described configuration, the dip soldering between the circuit conductor of the printed circuit board 50 and the connecting pin 12 is the heart of the connector, as shown in FIG. Since this can be carried out before the female contact 30 is assembled, there is no fear that the female contact 30 will be adversely affected by flux or the like.
Therefore, the height of the female contact portion 35 from the top surface of the printed circuit board 50 can be arbitrarily selected and can be set as low as desired, so that the length of the male contact 42 that comes into contact with the female contact portion 35 can be made longer than necessary. You don't have to. Furthermore, the prying force that acts when inserting and removing the connector is transmitted to the connecting pin 12 only through the connecting pin contact portion 33 that is in contact with the connecting pin 12, and is not transmitted directly to the connecting pin 12. Since the prying force is not transmitted, it is also possible to prevent such prying force from having an adverse effect on the dip soldering portion 52.

In the embodiments shown in FIGS. 2 to 7, the connection terminals disposed on the headers installed on the printed circuit boards to be connected are male, and the contact arrays connected to the headers are male. Although the provided contacts were of female type, according to the present invention, an embodiment as shown in a sectional view in FIG. 8 is also conceivable. In FIG. 8, reference numeral 50' indicates a printed circuit board, and header 10' and contact array 20' correspond to pin header 10 and contact array 20 in the embodiments of FIGS. 2 to 7, respectively. are doing. This header 10' consists of an insulating housing 11' and a large number of connection terminals 12' arranged in this insulating housing 11'.
Each connection terminal 12' includes a connection pin portion 12B' that protrudes from the bottom surface of the insulating housing 11' and can be inserted into a through hole 51' connected to a circuit conductor of the printed circuit board 50', and a female pin portion 12B' located within the insulating housing 11'. It has a contact portion 12A'. These connection terminals 12' may be punched out of a conductive sheet with spring properties. Contact array 2
0', a large number of contacts 30' are arranged, and these contacts 30' are shown in FIGS. 2 to 7.
This corresponds to the female contact 30 in the illustrated embodiment. Each contact 30' is formed in a U-shape, and one end thereof is inserted into the female contact portion 12A' of the connection terminal 12' disposed on the header 10' for electrical connection. having a male contact portion 33';
The other end has a female contact portion 35' for contacting a mating contact. These contacts 30' may also be stamped from a resilient conductive sheet. The mating contacts may be similar to the male contact array 40 described in the embodiments of FIGS. 2 to 7. Furthermore, since the method of using the printed circuit board connector of the embodiment shown in FIG. 8 is substantially the same as the method of using the connector of the embodiments of FIGS. 2 to 7,
I will not repeat the details here. In FIG. 8, reference numeral 52' indicates a dip soldering part that electrically connects the connecting pin part 12B' of the connecting terminal 12' and the circuit conductor of the printed circuit board 50'.

[Brief explanation of drawings]

Figure 1 of the accompanying drawings is a partial sectional view showing an example of a conventional printed circuit board connector, Figures 2 and 3,
Figures 4 and 5 are perspective views showing each component of a printed circuit board connector as an embodiment of the present invention, and Figures 6 and 7 are how to use the connectors shown in Figures 2 to 5. FIG. 8 is a sectional view illustrating another embodiment of the present invention. 10... Pin header, 11... Insulating housing, 12... Connection pin, 20... Female contact array, 21... Female contact compartment, 30... Female contact, 33... Connection pin contact portion, 40... Male contact array, 41...Insulating housing, 4
2... Male contact, 50... Printed circuit board, 6
0...Mounting panel.

Claims (1)

[Scope of utility model registration request] Contact parts 12A, 12A' and connection parts 12B, 1
A header 10, in which connection terminals 12, 12' having 2B' are arranged in an insulating housing 11, 11' with the contact parts 12A, 12A' and the connection parts 12B, 12B' protruding from different sides. 1
0', a contact array 20, 20' formed of an insulating material, in which contacts 30, 30' having connecting terminal contact portions 33, 33' and mating contact contact portions 35, 35' are fixedly disposed. The insulating housings 11, 11' of the headers 10, 10' are provided with locking portions 16, and the contact arrays 20, 20' are provided with:
A fixing lock 22 is provided, and the header 10, 10' is connected to the contact arrangement 20, 2.
The connecting terminals 12, 1 are installed on the printed circuit boards 50, 50' to be connected in a state separated from 0'.
2' connection parts 12B, 12B' to the printed circuit board 5.
0,50' circuit conductor, said contact arrangement 20,20' being connected to said header 10, 20' installed on said printed circuit board 50, 50'.
10' and said contacts 30,3
The connection terminal contact portions 33, 33' of the connection terminals 12, 12' are in electrical contact with the contact portions 12A, 12A' of the connection terminals 12, 12', and the fixing locks 22
is fixed to the header 10, 10' by engaging with the locking portion 16 of the insulating housing 11, 11' of the header 10, 10';
In this state, the mating contact contact portion 35,
35' is located below the connection terminal contact portions 33, 33' and close to the surface of the printed circuit board 50, 50', and is connected to the contact array 20, which is fixedly connected to the header 10, 10'. A printed circuit board connector characterized in that a mating contact 42 is brought into electrical contact with the mating contact contact portions 35, 35' of the contacts 30, 30' of the connector 20'.