JP3882925B2 - Electric circuit board forcible adhesion device - Google Patents

Description

  The present invention relates to an electric circuit board forcible contact apparatus, and more particularly to an electric circuit board forcibly contact apparatus applied to a light emitting diode display panel.

  A large light emitting diode display panel is composed of a plurality of light emitting diode array units, and each of the light emitting diodes is mounted on a plurality of electric circuit boards and arranged in an array arrangement. In order to display information and meet the needs of a large screen size, it is necessary to connect two or more of the above-mentioned electric circuit boards two by two and to precisely control the close contact between the electric circuit boards. Yes, thereby preventing the information from being deteriorated in uniformity and quality due to the influence of the gap between the electric circuit boards.

  FIG. 1A is an explanatory view showing an apparatus for forcibly attaching a prior art electric circuit board, which is applied to a plurality of electric circuit boards 101a, 102a, 103a having both front and back sides, Each of the electric circuit boards 101a, 102a, 103a has a light emitting diode array (not shown) attached to the front, and displays information by them, and four screw bases are arranged at the four corners on the back side. Has been. Here, the four screw bases are divided into both screw bases 111a and both screw bases 112a, and both screw bases 111a (112a) are arranged at opposite corners, that is, two adjacent said bases. The electric circuit boards are locked together by one screw base 111a and one screw base 112a therein to achieve the effect of forcible adhesion. For example, when two adjacent electric circuit boards (for example, 101a and 102a) are combined with a fixing piece 14a having two screw holes and two screws 13a, the screw of the electric circuit board 101a is used. The base 111a and the screw of the electric circuit board 102a are locked and fixed to the base 112a forcibly and closely.

  However, it is necessary to pay attention to the precision of the gap between the two screw holes of the fixing piece 14a and when they are arranged on the electric circuit boards 101a and 102a of the screw bases 111a and 112a. It is necessary to pay attention to the accuracy. Tolerances are all set at the time of manufacture of the products, and errors are easily generated after assembly.The forcible contact device belongs to a positioning joint of a predetermined distance, and the lock fixing direction is vertically orthogonal. As shown in FIG. 1B, the assembly force is generated in the electric circuit boards 101a and 102a as shown in FIG. 1B, so that a fine pinching angle θ is generated, or as shown in FIG. 1C. In addition, when an unreasonable force F in the horizontal shear direction is applied, the relative displacement x is easily generated in the electric circuit boards 101a and 102a.

  Therefore, an object of the present invention is to provide an electric circuit board forcible contact device for tightly coupling two adjacent electric circuit boards.

  In order to achieve the above-described object, the present invention is applied to a light emitting diode display panel, and a plurality of electric circuit boards adjacent to each other, and a plurality of pairs of L-shaped fixing frames for fixing the electric circuit boards, respectively. And a U-shaped locking member that locks at least one pair of the L-shaped fixed frames, so that the two adjacent electric circuit boards are forcibly brought into close contact with each other. Provided is an electric circuit board forcible adhesion device.

  In order to clarify the technical features and technical contents of the present invention in detail, preferred embodiments of the present invention will be described in detail and specifically with reference to the accompanying drawings. It will be appreciated that the structures are merely possible embodiments of the invention and do not define the invention in a narrow sense.

  The present invention sandwiches an L-shaped fixed frame already connected to an electric circuit board by a U-shaped locking member, provides a forcible adhesion effect in the horizontal pinching direction to the electric circuit board, and is good for a light emitting diode display panel. And provide display quality.

  FIG. 2 is an explanatory view showing a first embodiment of the electric circuit board forcible contact device of the present invention, which is intended to produce an effect of producing a light emitting diode display panel capable of displaying uniformly. For this purpose, two electric circuit boards 10 adjacent to each other, a plurality of pairs of L-shaped fixing frames 21 fixedly held on the electric circuit boards 10, and the L-shaped fixing frames 21 of the pairs are provided. At least one U-shaped locking member 22 for locking and fixing is provided, and two adjacent electric circuit boards 10 are forcibly brought into close contact with each other. Among them, the electric circuit board 10 has an information display surface (not shown) on which the light emitting diode array is arranged, and a fixing holding surface 101 corresponding to the information display surface, and the L-shaped fixed frame 21 is electrically connected to each other. A horizontal portion 211 of the fixed holding surface 101 of the circuit board 10 and a rising portion 212 formed integrally with one end portion of the horizontal portion 211 are connected to each other, and the horizontal portion 211 is connected via a screw 23 or a conventional mulberry adhesive or the like. The rising portions 212 of the pair of L-shaped fixed frames 21 correspond to each other and are in close contact with each other, and the U-shaped locking member 22 is fixed to the electric circuit board 10 by the above method. The two electric circuit boards 10 are locked and brought into close contact with each other by providing a force toward the middle line in the horizontal direction by being locked and held by the pair of rising portions 212.

  The rising portion 212 has a wedge-shaped cross section, and the thickness of the rising portions 212 increases more than the portion in contact with the bottom end portion of the horizontal portion 211, and the U-shaped locking member 22. Has an abutting slope for matching the wedge-shaped rising portion 212 on the inside thereof, and can be fixedly held in matching with each other.

  FIG. 3 is an explanatory view showing a second embodiment of the electric circuit board forcible contact device of the present invention, which is fixed inwardly on both the left and right sides of the U-shaped locking member 22. The rising portions 212 of the pair have storage tanks 2121 corresponding to the fixed holding lumps 221 respectively, and exert an action of locking and fixing each other.

  FIG. 4A and FIG. 4B are explanatory views showing the third and fourth embodiments of the electric circuit board forcible contact device of the present invention, respectively. Alternatively, the convex structure 216 or a state in which both are provided is shown, and the effect of fitting, locking and fixing to each other is exhibited. Due to the engagement locking action between the rising portions 212, the two adjacent mother boards 10 are not affected by the shear stress, and no displacement is generated, so that the display quality of the light emitting diode display panel can be ensured. .

  FIG. 5 is an explanatory view showing a fifth embodiment of the present invention, in which the U-shaped locking member 22 has one or more side screw holes 213 formed on one surface. Yes, the adjustment screw 24 is screwed in to strengthen the forcible adhesion to the rising portion 212 of the L-shaped fixed frame 21. At least one side screw hole 213 can be formed on each surface.

  FIG. 6 is an explanatory view showing a sixth embodiment of the present invention. When the bottom surface portion of the U-shaped locking member 22 is unevenly formed, the U-shaped locking member 22 is the upper surface thereof. At least one screw hole 214 may be formed in the portion, and the flatness of the L-shaped fixed frame 21 with respect to the horizontal portion 211 can be adjusted by matching the screwing of the adjusting screw 25.

  Further, the present invention further provides a function of radiating heat to the electric circuit board 10, and the pair of L-shaped fixed frames 21 are made of a material having a high thermal conductivity coefficient, and can provide a heat radiating action to the electric circuit board 10, Among them, since the horizontal portion 211 is formed in a plate shape, the contact area between the horizontal portion 211 and the electric circuit board 10 can be increased, and the heat dissipation effect can be enhanced in the electric circuit board 10.

  According to the electric circuit board forcibly close contact apparatus of the present invention, since two electric circuit boards can be tightly coupled, the display quality of the light emitting diode display panel can be secured, and each member for the close contact can further dissipate heat. Since it can provide a function, it has new industrial applicability.

  As described above, the present invention can surely achieve the intended purpose and effect, however, the technical means listed above are merely possible embodiments of the present invention, and any gist of the present invention. Needless to say, all modifications and changes made based on the technical features should be delivered within the scope of the claimed invention.

It is explanatory drawing which shows the conventional electric circuit board forced-contacting apparatus. It is explanatory drawing which shows the improper assembly state of the conventional electric circuit board forced drawing contact | adherence apparatus. It is explanatory drawing which shows the condition which receives the force of the conventional electric circuit board forcible adhesion apparatus. BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows 1st embodiment of the electric circuit board forcibly close_contact | adherence apparatus of this invention. It is explanatory drawing which shows 2nd embodiment of the electric circuit board forced drawing contact | adherence apparatus of this invention. It is explanatory drawing which shows 3rd embodiment of the electric circuit board forced-contacting apparatus of this invention. It is explanatory drawing which shows 4th embodiment of the electric circuit board forced-contacting apparatus of this invention. It is explanatory drawing which shows 5th embodiment of the electric circuit board forced-contacting apparatus of this invention. It is explanatory drawing which shows 6th embodiment of the electric circuit board forced-contacting apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Electric circuit board 21 L-shaped fixed frame 22 U-shaped locking member 23 Screws 24 and 25 Adjustment screw 101 Fixing holding surface 211 Horizontal part 212 Standing part 213 Side screw hole 214 Upper screw hole 215 Concave structure 216 Convex structure 221 Fixed Holding lump 2121 Storage tank

Claims (7)

In an electric circuit board forcible adhesion device applied to a light emitting diode display panel,
A plurality of electrical circuit boards (10) having information display surfaces adjacent to each other, each having a light emitting diode array disposed thereon, and a fixed holding surface corresponding to the information display surfaces;
A pair of horizontal portions (211) connected to the fixed holding surface of the electric circuit board and a rising portion (212) integrally formed at one end of the horizontal portion, respectively, of which the rising of the pair A plurality of pairs of L-shaped fixed frames (21), the parts of which correspond to each other and are in close contact with each other;
Comprising at least one U-shaped locking member (22) for locking and fixing the pair of L-shaped fixing frames to each other;
The U-shaped locking member (22) has at least one screw hole (214) formed in the upper surface portion (223) thereof, and the L-shaped fixing is achieved by matching the screw of the adjusting screw (25). An electric circuit board forcible adhesion device characterized in that the flatness of the frame (21) with respect to the horizontal portion (211) can be adjusted .   2. The electric circuit board forcible adhesion apparatus according to claim 1, wherein the pair of L-shaped fixed frames are made of a material having a high thermal conductivity coefficient, and provide a function of heat dissipation to the electric circuit board.   3. The electricity according to claim 2, wherein the horizontal portion is formed in a plate shape to increase a contact area between the horizontal portion and the electric circuit board, thereby enhancing a heat dissipation effect of the electric circuit board. Circuit board force-contact device.   The rising portion has a wedge-shaped cross section, and the thickness of the rising portions increases more than the portion in contact with the bottom end of the horizontal portion, and the U-shaped locking member is located on the inner side. 2. The electric circuit board forcible adhesion device according to claim 1, further comprising a contact slope for matching with the wedge-shaped rising portion and capable of being fixedly held in matching with each other.   The U-shaped locking members have fixed holding lumps extending inward on the left and right sides of the U-shaped locking member, and the pair of rising portions have storage tanks corresponding to the fixed holding lumps, respectively. The electric circuit board forcible contact apparatus according to claim 1, wherein the electric circuit board is forcibly fixed to the electric circuit board.   The U-shaped locking member has one or more side screw holes formed on one surface, and the adjustment screw is screwed to reinforce the forcible adhesion to the rising portion of the L-shaped fixing frame. The electric circuit board forcible adhesion device according to claim 1, wherein 2. The electric circuit board forcible adhesion device according to claim 1, wherein the rising portions of the pair have concave or convex structures, and are fitted and fixed to each other .

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