JPH0296791U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ないし第７図は本考案の一実施例にかか
り、第１図は取付け構造の要部分解状態を示す斜
視図、第２図は取付け途中状態を示す要部平面図
、第３図は第２図の−線に沿う断面図、第４
図は取付け後状態を示す要部平面図、第５図は第
４図の−線に沿う断面図であり、第６図は第
５図の−線に沿う断面図、第７図は回路基板
への放熱板取付け構造の全体構成を示す斜視図で
ある。また、第８図ａ，ｂは、それぞれ従来の取
付け構造を示す要部断面図である。 図における符号１は放熱板、２は回路基板、３
，５は透孔、４は開口凹部、６は連結金具、８は
押圧アーム、８ａは下端縁、１０は係止用段部で
ある。 1 to 7 show an embodiment of the present invention, in which FIG. 1 is a perspective view showing an exploded state of the main parts of the mounting structure, FIG. 2 is a plan view of the main parts showing a state in the middle of installation, and FIG. 3 is a cross-sectional view taken along the - line in Fig. 2;
The figure is a plan view of the main part showing the state after installation, Figure 5 is a cross-sectional view taken along the - line in Figure 4, Figure 6 is a cross-sectional view taken along the - line in Figure 5, and Figure 7 is a circuit board. FIG. 2 is a perspective view showing the overall configuration of a structure for attaching a heat dissipation plate to the radiator. Further, FIGS. 8a and 8b are sectional views of main parts showing conventional mounting structures, respectively. In the figure, numeral 1 is a heat sink, 2 is a circuit board, and 3
, 5 is a through hole, 4 is an opening recess, 6 is a connecting fitting, 8 is a pressing arm, 8a is a lower edge, and 10 is a locking step.

Claims (1)

【実用新案登録請求の範囲】 放熱板の下端に連設した取付け座と、この取付
け座が載置される回路基板とにわたつて透孔を形
成し、金属板材からなる連結金具を取付け座側か
ら前記透孔に対して縦軸心周りにひねり回動自在
に挿通するとともに、 連設金具には取付け座に形成した凹部に係入す
る押圧アームを連設し、かつ、この押圧アームの
下端縁を連設金具の縦軸心周りのひねり回動に伴
つて前記凹部の端縁に乗り上がるテーパ状に形成
する一方、 この連結金具の下端部には連結金具の前記ひね
り回動に伴つて回路基板の透孔に対してその下側
から係合する係止用段部を設け、両透孔に対して
所定の縦姿勢で挿通した連結金具をひねり回動す
ることにより、押圧アームの下端縁を介して連結
金具を上方にせり上げ変位させて押圧アームと係
止段部との間で取付け座と回路基板とを挟持する
ことを特徴とする回路基板への放熱板取付け構造
。[Claim for Utility Model Registration] A through hole is formed between a mounting seat connected to the lower end of the heat sink and a circuit board on which this mounting seat is placed, and a connecting fitting made of a metal plate is attached to the mounting seat side. The connecting fitting is inserted into the through hole so as to be able to twist and turn around the vertical axis, and the connecting fitting is connected with a pressing arm that engages in a recess formed in the mounting seat, and the lower end of the pressing arm The edge is formed into a tapered shape that rides up the edge of the recess as the connecting metal fitting twists around the vertical axis, while the lower end of the connecting metal fitting is formed in a tapered shape that rides up the edge of the recess as the connecting metal fitting twists and turns about the vertical axis. A locking step is provided that engages with the through-hole of the circuit board from below, and by twisting and rotating the connecting fitting inserted into both through-holes in a predetermined vertical position, the lower end of the pressing arm can be moved. A structure for mounting a heat dissipation plate to a circuit board, characterized in that the mounting seat and the circuit board are sandwiched between a pressing arm and a locking step by displacing the connecting fitting upward through the edge.