JPH0227529Y2

JPH0227529Y2 -

Info

Publication number: JPH0227529Y2
Application number: JP3913184U
Authority: JP
Priority date: 1984-03-19
Filing date: 1984-03-19
Publication date: 1990-07-25
Also published as: JPS60151109U

Description

【考案の詳細な説明】 (イ) 産業上の利用分野本考案はフライバツクトランス等の比較的重量
のある電気部品のプリント基板への取付けに用い
て好適な電気部品取付機構に関する。 (ロ) 従来技術従来、フライバツクトランス（以下FBTと称
す）のプリント基板への取付けは、FBTの端子
をプリント基板に設けた穴に挿入し、デイツピン
グによりハンダ付けすることにより、電気的、且
つ機械的な接続を行つているが、前記デイツピン
グ時には、FBT底面とプリント基板が密着した
状態で行なわれる必要がある。この密着性が保た
れてない場合は、デイツピング後、FBTとプリ
ント基板との間に若干の間隙が生じることとな
り、テレビジヨン受像機に組込んだ後の輸送時等
にFBT自身の重量により、プリント基板を破損
してしまうおそれがある。このため、従来よりデイツピング前に予め、
FBTをプリント基板に密着させて固定する方法
がとられていた。例えば、実開昭56−137421号公報の如く、プリ
ント基板下面よりFBTをネジ止めしたり、或い
は実開昭56−172915号公報の如く、FBTにフツ
ク部を設け、該フツク部をプリント基板の孔に係
合させたりしていた。ところが、上述の従来方法には、夫々、次の様
な欠点がある。すなわち前者の場合、ネジ止めの
際に、FBT及びプリント基板を逆向けにしなけ
ればならず、特別の設備が必要となり、且つ逆向
けの際にプリント基板上に容易に離脱する他の部
品を載置することができない。また、後者の場合、プリント基板下面よりフツ
ク部の先端が突出するため、デイツピング時に高
温となり、FBTケースの材質を高温に耐えうる
高価な材質を用いる必要がある。 (ハ) 考案の目的本考案は上述の点に鑑み為されたものであり、
FBTをプリント基板に固定する際、表裏逆向き
にする必要なく、且つFBTケースに高価な耐熱
材料を用いる必要のない電気部品取付機構を提案
するものである。 (ニ) 考案の構成本考案は下面より端子が突出する電気部品をプ
リント基板上に固定した後、前記端子を前記プリ
ント基板にハンダ付けしてなる電気部品取付機構
において、前記電気部品の固定部に形成されたス
リツトと、該スリツトに挿入可能で且つ、前記プ
リント基板上に固定される脚部、該脚部に連設さ
れる巾狭の支柱部及び該支柱部に連設され、該支
柱部より巾広の係止部を一体に備える固定具とか
らなり、前記スリツトに前記固定具を挿入すると
共に、前記支柱部をねじることにより、前記係止
部が前記固定部を係止することを特徴とする電気
部品取付機構である。 (ホ) 実施例以下、図面に従い本考案の一実施例を説明す
る。第１図は本実施例機構の分解斜視図、第２図は
同取付状態における要部側断面図、第３図イ，
ロ，ハは固定部の平面図、裏面図及び側断面図で
ある。図中、１はその外部が樹脂ケースに包まれた
FBTであり、その底面より複数の端子１ａ，１
ａ……が突出すると共に、両側部に一対の固定部
１ｂ，１ｂが設けられている。この各固定部には
スリツト１ｃが貫通して形成されると共に、その
底部には前記スリツトに連続してテーパ部１ｄが
形成されている。２は前記FBTが取付けられる
プリント基板であり、前記端子が挿入される端子
孔２ａ，２ａ…及び透孔２ｂ，２ｂ…が形成され
ている。３，３は前記固定部をプリント基板に固定する
固定具である。この固定具は、一対の脚部３ａ，
３ａ、該脚部の上端から横方向に延出する第１係
止部３ｂ、該第１係止部から上方に形成された巾
狭の支柱部３ｃ及び該支柱部に連続して形成さ
れ、上端が傾斜して、すそが巾広となつている第
２係止部３ｄが、変形可能な金属板、例えばブリ
キにより一体成型されている。尚、前記固定部１ｂと固定具３との各部の寸法
関係は第３図イ，ハに示す如く、H₀＜Ｈ，L₀≦
L₁，T₀≦L₂となつている。ここで、 H₀：第１及び第２係止部の各下端間の距離 H₁：スリツトの高さ、 T₀：固定具の厚さ、 L₀：第１、第２係止部の巾 L₁：スリツトの長さ、 L₂：スリツトの巾狭部分の巾、である。次に、本実施例機構の取付けについて説明す
る。まず、固定具３，３の脚部３ａ，３ａ…をプリ
ント基板２の各透孔２ｂ，２ｂ…に挿入する。そして、前記脚部を夫々、逆方向に折曲する。
この状態で前記脚部と第１係止部３ｂとの間に前
記プリント基板が挾持され、固定具はプリント基
板に堅固に固定される。次に、前記端子１ａ，１ａ…を端子孔２ａ，２
ａ…に挿入すると共に、前記植立された固定具
３，３を前記スリツト１ｃ，１ｃに挿入する。こ
のとき、前記固定部の下面にはテーパ部１ｄ，１
ｄが形成されているため、固定具のスリツトへの
挿入は容易に行なえる。次に第３図イの２点鎖線に示す如く、第２係止
部３ｄを時計方向に約45゜回動させる。これによ
つて、支柱部３ｃはねじられると共に、前記第２
係止部の下端は固定部上面に喰い込んで、前記固
定部は前記プリント基板上に堅固に固定される。更に、この状態からプリント基板２裏面より下
方に突出する端子１ａ，１ａ…をデイツピングし
て、ハンダ付けを行なう。尚、このデイツピング
時には前記脚部も同時にハンダ付けされる。また、前記FBTの交換時には、前記固定具の
第２係止部を逆方向にねじつて初期状態に復元す
ると共に端子１ａ，１ａ…のハンダを外し、プリ
ント基板より前記FBTを離脱すれば良い。 (ヘ) 考案の効果上述の如く本考案に依れば、FBT等の重量の
ある電気部品を取付ける際、プリント基板裏面よ
りネジ止めする必要なく、且つケースを耐熱性の
材質としなくても良いため、簡単且つ安価に取付
けができ、その効果は大である。 [Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to an electrical component mounting mechanism suitable for use in mounting relatively heavy electrical components such as flyback transformers to printed circuit boards. (b) Prior art Conventionally, a flyback transformer (hereinafter referred to as FBT) was attached to a printed circuit board by inserting the terminals of the FBT into holes provided in the printed circuit board and soldering them by dipping. Although the connection is mechanical, it is necessary that the bottom surface of the FBT and the printed circuit board be in close contact with each other during the dipping. If this adhesion is not maintained, there will be a slight gap between the FBT and the printed circuit board after printing, and the weight of the FBT will cause damage during transportation after being assembled into a television receiver. There is a risk of damaging the printed circuit board. For this reason, conventionally, before dating,
The method used was to fix the FBT in close contact with the printed circuit board. For example, as in Japanese Utility Model Application Publication No. 56-137421, the FBT is screwed from the bottom surface of the printed circuit board, or as in Japanese Utility Model Application Publication No. 56-172915, a hook portion is provided on the FBT and the hook portion is attached to the printed circuit board. It was also engaged with the hole. However, each of the above-mentioned conventional methods has the following drawbacks. In other words, in the former case, the FBT and printed circuit board must be turned in the opposite direction when screwing, which requires special equipment, and it is necessary to place other parts that easily come off on the printed circuit board when the screws are fixed. cannot be placed. Furthermore, in the latter case, since the tip of the hook protrudes from the bottom surface of the printed circuit board, it becomes hot during dipping, and the FBT case must be made of an expensive material that can withstand high temperatures. (c) Purpose of the invention This invention was created in view of the above points,
The present invention proposes an electrical component mounting mechanism that does not require turning the FBT upside down when fixing it to a printed circuit board, and does not require the use of expensive heat-resistant materials for the FBT case. (d) Structure of the invention The present invention provides an electrical component mounting mechanism in which an electrical component having a terminal protruding from the bottom surface is fixed onto a printed circuit board, and then the terminal is soldered to the printed circuit board. a slit formed in the slit, a leg part which can be inserted into the slit and is fixed on the printed circuit board, a narrow support part connected to the leg part, and a narrow support part connected to the support support part, the support support part being connected to the support support part; and a fixture integrally provided with a locking part wider than the slit, and the locking part locks the fixing part by inserting the fixture into the slit and twisting the support part. This is an electrical component mounting mechanism featuring: (e) Embodiment An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is an exploded perspective view of the mechanism of this embodiment, Fig. 2 is a side sectional view of the main part in the same installed state, Fig. 3
B and C are a plan view, a back view, and a side sectional view of the fixing part. In the figure, 1 has its exterior wrapped in a resin case.
It is an FBT, and multiple terminals 1a, 1 are connected from the bottom of the FBT.
a... protrudes, and a pair of fixing parts 1b, 1b are provided on both sides. A slit 1c is formed to pass through each of the fixing parts, and a tapered part 1d is formed at the bottom of the slit 1c so as to be continuous with the slit. Reference numeral 2 denotes a printed circuit board to which the FBT is attached, and terminal holes 2a, 2a, . . . , and through holes 2b, 2b, . 3 , 3 are fixtures for fixing the fixing portion to the printed circuit board. This fixture includes a pair of legs 3a,
3a, a first locking portion 3b extending laterally from the upper end of the leg, a narrow support portion 3c formed upward from the first locking portion, and a support formed continuously from the support portion; The second locking portion 3d, which has an inclined upper end and a wide base, is integrally molded from a deformable metal plate, such as tin plate. Incidentally, the dimensional relationship between each part of the fixing part 1b and the fixture 3 is as shown in FIG. 3 A and C, H ₀ <H, L ₀ ≦
L ₁ , T ₀ ≦L ₂ . Here, H ₀ : Distance between the lower ends of the first and second locking parts H ₁ : Height of the slit, T ₀ : Thickness of the fixture, L ₀ : Width of the first and second locking parts L ₁ : Length of the slit, L ₂ : Width of the narrow part of the slit. Next, the installation of the mechanism of this embodiment will be explained. First, the legs 3a , 3a , . . . of the fixtures 3, 3 are inserted into the respective through holes 2b, 2b, . Then, each of the leg portions is bent in opposite directions.
In this state, the printed circuit board is held between the leg portions and the first locking portion 3b, and the fixture is firmly fixed to the printed circuit board. Next, the terminals 1a, 1a... are inserted into the terminal holes 2a, 2.
At the same time, the erected fixtures 3, 3 are inserted into the slits 1c, 1c. At this time, the lower surface of the fixing part has tapered parts 1d, 1
d, the fixture can be easily inserted into the slit. Next, as shown by the two-dot chain line in FIG. 3A, the second locking portion 3d is rotated approximately 45 degrees clockwise. As a result, the support portion 3c is twisted and the second
The lower end of the locking part bites into the upper surface of the fixing part, so that the fixing part is firmly fixed onto the printed circuit board. Further, from this state, the terminals 1a, 1a, . . . projecting downward from the back surface of the printed circuit board 2 are dipped and soldered. Incidentally, at the time of this dipping, the leg portions are also soldered at the same time. Furthermore, when replacing the FBT, the second locking part of the fixture may be twisted in the opposite direction to restore the initial state, and the terminals 1a, 1a... may be unsoldered and the FBT may be removed from the printed circuit board. (f) Effects of the invention As described above, according to the invention, when installing heavy electrical components such as FBT, there is no need to screw them from the back of the printed circuit board, and the case does not need to be made of heat-resistant material. Therefore, it can be installed easily and inexpensively, and its effects are great.

[Brief explanation of the drawing]

図面はいずれも本考案の一実施例に関し、第１
図は分解斜視図、第２図はFBT取付け後の要部
側断面図、第３図イ，ロ，ハは夫々、固定部の平
面図、裏面図及び側断面図である。主な図番の説明、１……FBT、１ｂ……固定
部、１ｃ……スリツト、２……プリント基板、３
……固定具、３ａ，３ａ……一対の脚部、３ｃ…
…支柱部、３ｂ，３ｄ……第１、第２係止部。 The drawings all relate to one embodiment of the present invention.
The figure is an exploded perspective view, FIG. 2 is a sectional side view of the main part after the FBT is installed, and FIGS. Explanation of main drawing numbers, 1 ...FBT, 1b...Fixed part, 1c...Slit, 2 ...Printed circuit board, 3
...Fixing tool, 3a, 3a...Pair of legs, 3c...
...Strut portion, 3b, 3d...first and second locking portions.

Claims

[Scope of utility model registration request]

In an electrical component mounting mechanism in which an electrical component having a terminal protruding from a lower surface is fixed on a printed circuit board and then the terminal is soldered to the printed circuit board, a slit formed in a fixing portion of the electrical component; A leg part that can be inserted into the printed circuit board and is fixed on the printed circuit board, a narrow column part connected to the leg part, and a locking part connected to the column part and wider than the column part. 1. An electrical component mounting mechanism comprising: a fixture provided integrally with the electric component; and the locking part locks the fixing part by inserting the fixture into the slit and twisting the support part.