Fixing structure of multi-layer printed circuit board

The present invention relates to a fixing structure of a raulti-layer printed circuit board, and more particularly, to a fixing structure of a multi-layer printed circuit board, which has a simple structure and a high fixing force using a printed circuit board fixing portion having slots.

TECHNICAL FIELD

The present invention relates to a fixing structure of a multi-layer printed circuit board, and more particularly, to a fixing structure of a multi-layer printed circuit board, which has a simple structure and a high fixing force using a printed circuit board fixing portion having slots.

A printed circuit board refers to a thin plate to which electrical components such as integrated circuits, resistors and switches are soldered, and is used in various fields as well as the computer field.

BACKGROUND ART

A fixing structure for fixing printed circuit boards is shown inFIG. 1. The fixing structure of a conventional multi-layer printed circuit board, shown inFIG. 1, includes a printed circuit board case120to which printed circuit boards110are fixed; the printed circuit boards110each having a through-hole111formed at each corner thereof; bolts130each having a protrusion portion131; and nuts132with which the bolts130are fixed.

The fixing structure of the multi-layer printed circuit board, shown inFIG. 1, has a structure in which the protrusion portion of the bolt is inserted into the through-hole of the printed circuit board to fix the printed circuit boards to each other, and the printed circuit boards are fixed to the printed circuit board case by the nut.

When a plurality of printed circuit boards are connected using bolts each having a protrusion portion as shown inFIG. 1, there is a problem in that, as the number of connection means is increased, a connecting operation time is increased, and therefore, manufacturing cost is increased.

Further, there is a problem in that a component such as the bolt does not appropriately maintain a fixing force because the strength of the component is weak due to the continuous exhaustion such as vibration.

Meanwhile, the number of printed circuit boards used in a battery control device used in a electric automobile or hybrid automobile is large, and a large number of printed circuit board are mounted in a narrow space as automobiles tend to be miniaturized. Since it takes a long period of time to fix printed circuit boards with a low fixing force using the conventional method, there is a problem in that productivity is considerably lowered.

DISCLOSURE

Technical Problem

Accordingly, the present invention is conceived to solve the aforementioned problems. An object of the present invention is to provide a fixing structure of a multi-layer printed circuit board, wherein a plurality of printed circuit boards are simply fixed by a one-time connection using a printed circuit board fixing portion having slots, so that efficiency of assembling and disassembling operations can be improved, and it is possible to prevent deformation and damage from occurring by improving a fixing force of the printed circuit boards.

Technical Solution

According to an aspect of the present invention for achieving the object, there is provided a fixing structure of a multi-layer printed circuit board, which includes: a plurality of printed circuit boards10each having through-holes11at corners thereof; a printed circuit board fixing portion20having a plurality of slots21into the corners of the printed circuit boards10are inserted to be fixed, and a fixing groove22formed long in a lateral direction so that the through holes11of the printed circuit boards10are exposed; and a connection means30guided along the fixing groove22and passing through the through-holes11of the respective printed circuit boards10.

Further, a pair of the printed circuit board fixing portions20may be spaced apart from each other at a predetermined distance to fix both ends of the printed circuit boards10.

Further, the printed circuit board fixing portion20may have a seating portion23formed to a predetermined depth at an inside thereof so that the printed circuit boards10are more stably fixed.

Further, the printed circuit board fixing portion20may have a plurality of ventilation portions24formed at the seating portion23.

Advantageous Effects

Accordingly, the fixing structure of the multi-layer printed circuit board according to the present invention has an advantage in that a plurality of printed circuit boards can be simply fixed by a one-time connection using a printed circuit board fixing portion having slots, and the number of assembly components can be remarkably reduced through a simple configuration, thereby enhancing efficiency of assembling and disassembling operations of the multi-layer printed circuit board.

Further, the fixing structure of the multi-layer printed circuit board according to the present invention has an advantage in that it is possible to prevent deformation and damage from occurring by improving a fixing force.

DETAILED DESCRIPTION OF MAIN ELEMENTS

BEST MODE

Hereinafter, a fixing structure of a multi-layer printed circuit board according to the present invention will be described in detail with reference to accompanying drawings.

FIG. 2is an assembled perspective view of the fixing structure of the multi-layer printed circuit board according to the present invention. The fixing structure of the multi-layer printed circuit board according to the present invention includes a plurality of printed circuit boards10, a printed circuit board fixing portion20to which the plurality of printed circuit boards10are fixed, and a connection means30.

such as a fuel cell, a plurality of printed circuit boards are frequently stacked to be used. Accordingly, a means for fixing a multi-layer printed circuit board is required to be suitable for an environment such as an automobile, in which vibrations are continuously generated.

In the present invention, the multi-layer printed circuit board is simply and firmly fixed using the printed circuit board fixing portion20, which will be described in detail below.

The printed circuit board10has a through-hole11for connection, formed at each corner thereof.

The printed circuit board fixing portion20has a plurality of slots21into which the corners of the printed circuit boards10are inserted to be fixed, and a fixing groove22is formed long in a lateral direction so that the through holes11are exposed.

The width of the slot21is adjusted depending on the thickness of the printed circuit board10, and the corner of the printed circuit board10is inserted into the slot21as shown inFIG. 2.

The connection means30is guided along the fixing groove22and fixed by passing through the through-holes11of the respective printed circuit board10. Although it has been shown inFIG. 2that the connection means30includes a bolt and nuts, any means capable of fixing the respective printed circuit boards by passing through the through-holes11of the printed circuit boards10may be used without limitation.

A connector40is a means for electrical connection between the printed circuit boards10and may be variously formed.

As described above, the present invention has an advantage in that the number of assembly components is remarkably decreased, thereby enhancing efficiency of assembling and disassembling operations of the multi-layer printed circuit board.

FIG. 3is an exploded perspective view of the fixing structure of the multi-layer printed circuit board shown inFIG. 2. In the fixing structure of the multi-layer printed circuit board according to the present invention, the corners of the printed circuit boards10are inserted into the slots21of the printed circuit board fixing portion20, and the connection means30is inserted into the through-holes11respectively formed at the corners of the printed circuit boards10to connect the printed circuit boards, so that the plurality of printed circuit boards10are fixed to the printed circuit board fixing portion20.

As shown inFIG. 3, it is preferred that a pair of the printed circuit board fixing portions30allow both ends of the printed circuit board10to be fixed while being spaced apart from each other at a predetermined distance, thereby enhancing a connection force and preventing deformation or the like due to vibration from occurring.

FIG. 4is a perspective view of a printed circuit board fixing portion20according to the present invention.

Preferably, the printed circuit board fixing portion20has a seating portion23formed to a predetermined depth at an inside thereof into which the printed circuit boards10are inserted so that the printed circuit boards10are more stably fixed.

The corners of the printed circuit boards10are inserted into the slots21of the printed circuit board fixing portion20, and the fixing force of the printed circuit boards10can be more enhanced due to the formation of the seating portion23. One side of the printed circuit board10is supported by the seating portion23of the printed circuit board fixing portion20, and the insertion length of the printed circuit board is adjusted.

The printed circuit board fixing portion20has a plurality of ventilation portions24formed at the seating portion23.

Preferably, a large number of ventilation portions24are formed in the printed circuit board fixing portion20to prevent lowering of ventilation characteristics generated by fixing both ends of the printed circuit boards10when a pair of the printed circuit board fixing portions20are spaced apart from each other. Accordingly, heat generated in operation of the multi-layer printed circuit board can be easily discharged.

FIG. 5is a plan view of the printed circuit board fixing portion20according to the present invention. The drawing shown inFIG. 5is a plan view seen from the top of the printed circuit board fixing portion20, and the fixing grooves are formed long in a lateral direction so that the through-holes11of the printed circuit boards are exposed.