JPH0355953B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to improvements in electrical connectors, particularly connectors for printed circuit boards.

(Conventional technology and its problems) In order to save labor and automate the assembly process of consumer equipment such as stationary VTRs and audio equipment, connectors that connect between printed wiring boards are widely used. ing. The spacing between these wiring boards varies depending on the type of equipment. When assembling this type of equipment, a particularly heavy burden on the process is the positional accuracy between boards to be connected, that is, the alignment between the boards, and the fitting workability during connector assembly work, that is, positioning. Conventionally, production costs have increased in order to increase the precision of such products, and skill has been required to increase assembly precision, and contacts have been damaged during assembly, and devices have been damaged during use after assembly. Contacts were damaged due to deformation, etc., resulting in poor contact and causing failure. These problems become more common as the distance between printed wiring boards increases.

The present invention has been made in view of the current situation, and it reduces production costs by increasing the tolerance for accuracy during production, eliminates the need for skill in assembly, and facilitates the automation of assembly. It is an object of the present invention to provide a connector with an alignment-free structure that can prevent failures during use.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides flexibility to the contact itself that connects both boards, and at the same time provides flexibility to the holding part that supports the contact. It has a structure that combines both functions and can reliably maintain electrical contact with the wiring board, which is the main purpose of a contact.

(Function) According to the structure of the connector of the present invention, flexibility is imparted to the contact itself and the contact holding device, so that the contact maintains contact with the wiring circuit on the board regardless of manufacturing errors or deformation during use. Maintain performance.

(Example) The present invention will be described in detail below based on an example shown in the drawings.

In FIG. 3, the connector of the present invention connects, for example, an upper printed wiring board 1 and a lower printed wiring board 2 of a stationary VTR. The connector is assembled from a header assembly H and a receptacle assembly R fitted therein. The lower curved portions of the plurality of post contacts 4 passing through the header assembly H are connected to the circuit of the lower printed wiring board 2. The post contact is made of brass, for example, and is elongated and flexible in itself. Further, a plurality of receptacle contacts 12 provided in the receptacle assembly R are connected to a circuit on the upper printed wiring board 2. A resilient contact portion (FIG. 3) provided at the bottom of the receptacle contact 12 made of, for example, phosphor bronze contacts the top of the post contact 4. In this way, the upper and lower printed wiring boards are electrically connected.

The header assembly H has side columns 7, 7 on both sides.
A header housing 3 is provided, the main components of which are a lower post holder 6 provided at the bottom of the lower post holder 6 for connecting these, and an upper post holder 5 provided near the center of the side column. the side pillar 7;
A guide column 10 protrudes from the top of 7. The side columns 7, 7 are each provided with a hollowed-out portion 7' to reduce weight and provide flexibility. The upper post holding part 5 and the lower post holding part 6 are each provided with a through hole through which the post conductor 4 passes. As shown in FIG. 1, the upper post holding portion 5 is provided with a plurality of notches, ie, lateral grooves 8 and lower grooves 9, to increase its flexibility. Since the header assembly has such a structure and is made of flexible nylon material, it has its own flexibility.

The receptacle assembly R includes a cavity that accommodates the upper part of the post contact 4 that passes through the header assembly H, and the resilient contact portion of the receptacle contact 12 is formed in this cavity, and the post The conductors are in elastic pressure contact. In addition, guide holes 13 are provided on both sides,
By fitting the guide column 10 of the header assembly H here, the header assembly and receptacle assembly are assembled. The housing of the receptacle assembly R is placed on the upper surface of the side post 7 (having a rectangular cross section in the drawing) of the header assembly H.

(Effects of the Invention) Since the connector of the present invention has the configuration described above, the synergistic effect of the flexibility of the post contact itself and the flexibility of the post holding portion allows the accuracy requirements of the printed wiring boards to be connected to be met. This reduces the manufacturing cost of molding dies, etc., making it easier to manufacture, and increasing the tolerance during connector installation work, improving mating and assembly work efficiency, and therefore reducing the assembly process. It can facilitate labor saving and automation, and can also adapt to bending distortion of the printed wiring board on which this connector is mounted and the equipment itself, so it can be easily used not only during assembly but also during many years of use. There are effects that can be addressed. Furthermore, it is possible to completely prevent defective contacts caused by breakage of soldered parts during assembly work and use, which conventionally occur.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a header assembly of the connector of the present invention, FIG. 2 is a perspective view of the receptacle assembly, and FIG. 3 is a cross-sectional view of the connector of the present invention incorporated into a printed wiring board. H...header assembly, R...receptacle assembly, 1...printed circuit board, 2...printed circuit board, 3...header housing,
4... Post contact, 5... Upper post holding part,
6... Lower post holding part, 7... Side post, 7'... Lightening part, 8... Horizontal groove, 9... Lower groove, 10... Guide column, 11
... Receptacle housing, 12... Receptacle contact, 13... Guide hole.

Claims (1)

[Claims] 1. A connector comprising a header assembly that connects to a first printed wiring board and a receptacle assembly that fits into the header assembly and connects to a second printed wiring board, wherein the header assembly is connected to both sides. A header housing comprising a side post provided, a lower post holding part provided at the bottom of the side post so as to connect the side posts, and an upper post holding part provided approximately in the center of the side post, One end of a post contact that extends through both post holders and is itself flexible is connected to a circuit of the first printed wiring board, and the other end of the post contact is connected to the first printed wiring board. Second
1. A connector for a printed circuit board, characterized in that the upper post holding part is provided with a number of notches for increasing the elasticity of the post holding part, the connector being in resilient contact with a receptacle contact connected to a circuit of a printed wiring board.