JPS5935022Y2 - Printed circuit board multi-stage connector - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a multi-stage connector used to attach a plurality of printed circuit boards that are widely used in various electronic devices including communication devices.

Although these types of coupling devices that have been used in the past differ in detail, they all include metal bolt-screw spacing sleeves and the like.

FIG. 1 shows an example in a side view, in which a plurality of rectangular prints 1, 2, 3, . Shield plate (iron plate or aluminum plate) 4 etc. has one long mounting pole at its four corners)
5, 5' sleeves made of metal 6.7, 8, 9
, 6', 7', 8', and 9', for example, it is fixed to the side wall of the housing or the chassis 10 or the like.

In such a conventional configuration, sleeves with different degrees of quality must be prepared, and the sleeves themselves are manufactured by cutting, which makes them expensive. This prevents the mounting parts from being placed close to the four corners, increases the weight, and requires time to assemble due to screw fastening, which increases production costs.

The purpose of this invention is to provide a new type of coupling device that eliminates these drawbacks.The purpose of this device is to use a synthetic resin material with good moldability and elasticity, such as nylon material, and to attach printed boards and shield plates to the sides. A joint formed in the form of a rod, which has multiple comb-like tops that hold the four corners of the board, and has forked claws at both ends that fit into the mounting holes of the upper and lower printed boards, the side walls of the case, or the chassis. This is achieved through the use of tools.

By using the plurality of comb-like recesses, as many printed boards or shield plates as there are in the top part can be regularly arranged in multiple stages.

By using a synthetic resin material with good moldability and elasticity, such as nylon material, a predetermined shape can be easily obtained.

By equipping the top and bottom with pronged claws, the top and bottom printed boards,
Alternatively, it becomes possible to removably fit it into the side wall of the housing or the mounting hole of the chassis, and the number of assembly steps is significantly reduced compared to the conventional method.

Since no metal material is used, the mounting parts can be placed close to the four corners, making it lightweight and inexpensive.

Embodiments of the present invention will be specifically described with reference to FIG. 2 and subsequent figures.

Fig. 2 is an exploded perspective view showing only one corner of the connecting tool according to the present invention, in order to facilitate understanding of the situation in which a plurality of printed boards and shield plates are joined together with their four corners facing each other. be.

Reference numeral 11 denotes a coupling tool formed by molding a nylon material, and is provided with comb-like inlets 12 arranged at a constant pitch on its sides, and forked claws 13 (only the upper part is shown) at both upper and lower ends.

Among the printed boards 14, 15, 16, shield plate 17, etc. to be joined, the upper and lower printed boards 14, 16 have joining holes 18, 19 drilled in each corner thereof, and the connecting holes 18, 19 are connected to the forked claws at both the upper and lower ends of the joining tool 11. 13, etc., and the printed board 15, shield plate 17, etc. are pushed into the entry part 12, and are firmly held by their elastic clamping.

The fork-like pawls 13 at both the upper and lower ends can be provided together with the molding of the coupling tool 1, especially the comb-like inlet part 12, but as shown in a perspective view in FIG. It is also possible to manufacture the retainer 11 separately as a shaped pawl 13', provide internal threads 21 at both the upper and lower ends of the retainer 11, and tighten and fix the retainer 11 during assembly.

In this case, there is an advantage that the connector 11 can be cut to an appropriate length depending on the number of printed boards, shield plates, etc. to be held, and female threads can be provided on the end faces of the upper and lower input parts, thereby making it possible to connect them compactly.

As explained above, the present invention is cheaper and lighter than conventional coupling devices that use bolts and sleeves, and has the main effects of significantly shortening assembly man-hours, as well as its practical effects. big.

[Brief explanation of the drawing]

Fig. 1 shows a side view of a conventional coupling device, Fig. 2 shows an exploded perspective view of the coupling device and the state of the coupling according to the present invention, and Fig. 3 shows another embodiment of the pronged claw of the coupling device. . In the figure, reference numeral 11 indicates a coupling tool, numeral 12 indicates a comb-shaped recess on the side thereof, and numerals 13 and 13 indicate prongs that are fitted into the coupling hole 18 of the printed board 14.

Claims (1)

[Scope of utility model registration request] A printed circuit board multi-stage connector, characterized in that it is made of a synthetic resin material with good moldability and elasticity, and is formed into a bar shape with a plurality of tops on the sides that clamp the corners of the printed circuit board. .