JPS61110496A - Connector for circuit board and chassis - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a connection device between a circuit board and a chassis of an electronic device such as a video tape recorder.

Conventional Technology In recent years, the production of video tape recorders has grown at a remarkable rate, and the domestic penetration rate is approaching 3.0%. The trigger for this was, of course, the continuous release of new products from various manufacturers with low unit prices. This trend is likely to continue, and price competition will become even more intense in the future.

Against this background, it can be said that one of the important issues for each manufacturer is how to further reduce costs.

An example of a connection device between a circuit board and a chassis used in a conventional electronic device such as a video tape recorder will be explained below with reference to the drawings. Figure 3 shows the connection between a circuit board and a chassis of a conventional video tape recorder. It is a side sectional view showing a state. In FIG. 3, τ, 3 is a printed wiring board, and 6& and 6b are a take-up side reel sensor and a supply side reel sensor, respectively. 6a and 6b are a take-up reel stand and a supply reel stand, respectively. 8 is a capstan motor, 8 is a light emitting element for detecting the end of the tape, 9 is an eraser head, 1o is a wire made of a rigid body such as iron or aluminum, 11 is a wiring connector,
12 is a lead wire.

As shown in FIG. 3, in the past, reel sensors (6&sb), capstan 7, light emitting elements 8, 8, and 8 were installed on the chassis. For example, in the case of the erase head 9, in order to connect the circuit board 3 with so-called electronic mechanical parts (including the case of only electronic parts) related to the mechanism of the erase head 9, etc.
Connector receivers were provided on both the erasing head side and the circuit board side, and the two were connected via a lead wire 12 having plug-in connectors at both ends. Or the light emitting element 8
As in the case of , the lead wire 12 comes out directly from the light emitting element side, the other end is provided with a connector insertion g4, and the connector socket provided on the circuit board is inserted into the side to connect the light emitting element 8 and the circuit. Board 3 was connected.

In other words, conventionally, in order to connect the circuit board 3 and the chassis 1o, at least one pair of connectors 1 is provided for each electronic mechanical component.
Problems to be Solved by the Invention However, in the above configuration, lead wires whose shape and attachment condition are difficult to determine are used, making assembly difficult. Not only was it extremely difficult to automate the process, but even after the connector was inserted, post-processing was required to clamp the lead wires to prevent them from coming into contact with the moving parts of the mechanism. Therefore, the above-mentioned work process on the manufacturing line currently relies mostly on manual labor, and since connectors must be inserted for each electronic mechanical component on the chassis, work efficiency is poor and multiple workers are required. However, this has resulted in increased material costs for connectors and lead wires, raising product costs, and this has become a major barrier to efforts to reduce costs in the future. The present invention addresses the above-mentioned problems and provides an extremely simple connection device between a circuit board and a circuit board that does not require line processing.

Means for Solving the Problems In order to solve the above problems, the circuit board and shear connection device of the present invention uses a metal-based printed wiring board and bends the ends with printed wiring bodies. The mechanism is equipped with a chassis of the mechanism formed by the above-mentioned method, and a printed wiring board placed on W1 opposite to the chassis, and the chassis and the printed wiring board are connected to a special connector which is implanted on the printed wiring board. According to the above-described structure, the electronic mechanical components on the chassis can be directly installed on the printed wiring body on the surface of the chassis by soldering or the like. 〇Also, by bending the chassis with the printed wiring body intact, the wiring of the electronic mechanical components can be guided through the surface of the chassis to the end, and at the same time, the connector insertion side can be connected to the chassis itself. It is possible to form. Therefore, by planting a dedicated connector on the receiving side on the printed wiring board placed opposite the chassis, electronic mechanical components on the yarn can be connected without individual lead wires and connectors, and without wire processing. It becomes possible to greatly simplify the connection with the printed wiring board, and it becomes possible to reduce the cost.Example: Hereinafter, a connection device between a circuit board and the shear 7 according to an example of the present invention will be explained with reference to the drawings. explain.

FIG. 1 is a perspective view of a main part of a circuit board and chassis connection device according to an embodiment of the present invention.

In FIG. 1, 1 is a metal-based printed wiring chassis, and 2 is a printed wiring body formed by coating the chassis surface with copper, etching, etc. The peripheral part of the metal base printed wiring chassis 1 is bent, and the printed wiring body 2 is also bent at the same time in the part where the notch is provided, so that the printed wiring body 2 continues to the end, so that it becomes a so-called connector. Reference numeral 83 forming the insertion side is a normal printed wiring board, and is arranged at a position facing the metal base printed wiring board 1. Reference numeral 4 designates a dedicated connector on the side of the receiver implanted on the printed wiring board 3, and is directly connected to the insertion side of the metal base printed wiring board 1. In addition, 6& is a take-up side reel stand, and 6a is a take-up side reel sensor for detecting the rotation of the take-up side reel stand 6a, which is directly attached to the printed wiring body 2 with a solder or the like, and is connected to a dedicated connector 4. It is guided to the printed wiring board 3 via.

FIG. 2 shows a side sectional view of one embodiment of the present invention. 6b is a supply side reel sensor, 7 is a capstan motor, 8 is a light emitting element for detecting the end of the tape, and 9 is an erasing head. All of these so-called electronic mechanical parts are made of metal like the take-up side reel sensor 6 & above. It is directly attached to the printed wiring body 2 of the base printed wiring chassis 1, and is led to the printed wiring board 3GC via the dedicated connector 4.

As described above, according to this embodiment, the reel sensor (6 & and esb) is connected using the metal base printed wiring chassis 1.
The chassis of the mechanism is constructed by directly attaching so-called electronic mechanical parts such as, and the insertion side of the connector is formed by bending the ends, and the corresponding dedicated connector 4 is connected to the metal base printed wiring. By planting the printed wiring board 3 on the printed wiring board 3 placed opposite the chassis 1, the printed wiring board 3 and the metal base printed wiring chassis 1 can be connected without using any wire materials such as lead wires or connectors, and therefore without wire processing. can be directly connected by an extremely simple method of just inserting the dedicated connector 4.

Effects of the Invention As described above, the present invention provides a mechanism chassis formed by bending the ends of a metal-based printed wiring board with the printed wiring body still attached, and a position facing the mechanism. By configuring the printed wiring board arranged on the chassis to be directly connected at the bending part of the chassis via a dedicated connector implanted on the board, the circuit board and the so-called electronics on the mechanical chassis are Mechanical parts (sensors, magnets, magnets, motors, etc.) can be connected simultaneously without using conventional lead wires or wires such as connectors attached to those lead wires, and in addition, one or more dedicated connectors can be inserted at the same time. It is possible to obtain excellent effects such as being able to connect directly with an extremely simple method of just using the following steps. In addition to being advantageous in terms of material costs because it saves wires, it also saves the trouble of inserting a connector for each electronic mechanical component, and depending on the component, the trouble of routing lead wires and handling wires such as clamps. It can also be automated, which has the excellent effect of significantly reducing assembly man-hours.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a perspective view of a main part of a circuit board and chassis connection device according to an embodiment of the present invention, FIG. 2 is a side sectional view of the embodiment of the present invention, and FIG. is a side sectional view of a conventional example. 1... Metal base printed wiring chassis, 2...
...Printed wiring body, 3...Printed wiring board, 4...Special connector. Name of agent: Patent attorney Toshio Nakao and one other name
1 figure
1---411 and split■Dead relative Shiisi? ---・
7″ Lint C self body 3-111 psosoto iris force”-shiri ξ4----exclusive co-ordinator? 2 el

Claims (1)

[Claims] A mechanism chassis formed by bending an end portion of a metal-based printed wiring board with a printed wiring body, and a printed wiring board disposed at a position facing the chassis, and the above-mentioned A connection device for a circuit board and a chassis, characterized in that the chassis and the printed wiring board are connected at a bent portion of the chassis via a dedicated connector implanted on the printed wiring board.