JPH0129858Y2

JPH0129858Y2 -

Info

Publication number: JPH0129858Y2
Application number: JP1981183616U
Authority: JP
Priority date: 1981-12-11
Filing date: 1981-12-11
Publication date: 1989-09-12
Also published as: JPS5888431U

Description

【考案の詳細な説明】本考案はテレビジヨンチユーナ等のチユーナの
シールド構造に関するものである。[Detailed Description of the Invention] The present invention relates to a shield structure for a tuner such as a television tuner.

第１図にチユーナのシールド構造に関する従来
例の断面図を示す。図において、１は枠体、２は
仕切板、３はシールドカバー、４はシールドカバ
ーに設けた突起、５，６は枠体外側とシールドカ
バーの接触片である。 FIG. 1 shows a sectional view of a conventional example of a tuner shield structure. In the figure, 1 is a frame, 2 is a partition plate, 3 is a shield cover, 4 is a projection provided on the shield cover, and 5 and 6 are contact pieces between the outside of the frame and the shield cover.

従来例においては、シールドカバー３と枠体１
および仕切板２との接触を板の断面でとつている
ため、接触面積が少なくことおよび板断面の状態
が周囲の雰囲気の影響等で腐蝕しやすいこと等の
ために電気的な接触が不十分、かつ、不安定にな
りやすい欠点がある。 In the conventional example, the shield cover 3 and the frame 1
Since the contact with the partition plate 2 is made at the cross section of the plate, the electrical contact is insufficient because the contact area is small and the condition of the cross section of the plate is susceptible to corrosion due to the influence of the surrounding atmosphere. , and has the disadvantage of being prone to instability.

本考案では上記した従来技術の欠点をなくし、
枠体および仕切板とシールドカバーの電気的接触
を十分かつ安定して得られるシールド構造を提供
するものである。 The present invention eliminates the drawbacks of the conventional technology mentioned above,
The present invention provides a shield structure that provides sufficient and stable electrical contact between a frame body, a partition plate, and a shield cover.

本考案ではシールドカバーに弾性突起および枠
体外側と接触する接触片を設け、さらに、枠体お
よび仕切板に設けた突起と機械的な接触を保ちシ
ールドカバーの電気的接触を面でとる様にした。 In this invention, the shield cover is provided with an elastic protrusion and a contact piece that contacts the outside of the frame, and furthermore, it is designed to maintain mechanical contact with the protrusions provided on the frame and the partition plate, and to make electrical contact with the shield cover on the surface. did.

本考案の一実施例であるシールド構造の断面図
を第２図に示す。図において、７は枠体、８は仕
切板、９はシールドカバー、１０は弾性突起、１
１，１２は弾性接触片、１３，１５は枠体に設け
た面接触部、１４は仕切板に設けた面接触部、１
６，１８は枠体外側に設けた突起、１７は仕切板
に設けた突起である。 FIG. 2 shows a cross-sectional view of a shield structure that is an embodiment of the present invention. In the figure, 7 is a frame body, 8 is a partition plate, 9 is a shield cover, 10 is an elastic projection, 1
1 and 12 are elastic contact pieces; 13 and 15 are surface contact portions provided on the frame; 14 are surface contact portions provided on the partition plate;
6 and 18 are protrusions provided on the outside of the frame, and 17 is a protrusion provided on the partition plate.

枠体７および仕切板８に設けた面接触部１３，
１４，１５はその面によりシールドカバー９と電
気的な接触を保ち、従来例の板の断面による接触
に比べ良好な電気的接触が得られる。なお、これ
らの面接触状態はシールドカバーに設けた弾性接
触片１１および１２、弾性突起１０と突起１６，
１７，１８との機械的な接触により保持される。
シールドカバーを切り欠いて得られる弾性突起１
０は弾性接触片１１，１２と同一断面形状を有し
突起に弾性を持たせることにより、シールドカバ
ーの繰返し脱着に対してその弾性を保持し得るも
のであることは言うまでもない。 A surface contact portion 13 provided on the frame body 7 and the partition plate 8,
14 and 15 maintain electrical contact with the shield cover 9 through their surfaces, and better electrical contact can be obtained than in the conventional example where contact is made by a cross section of a plate. Note that these surface contact states are caused by the elastic contact pieces 11 and 12 provided on the shield cover, the elastic protrusion 10 and the protrusion 16,
It is held by mechanical contact with 17 and 18.
Elastic protrusion 1 obtained by cutting out the shield cover
0 has the same cross-sectional shape as the elastic contact pieces 11 and 12, and by imparting elasticity to the protrusions, it goes without saying that the elasticity can be maintained against repeated attachment and detachment of the shield cover.

本考案によればチユーナ等の枠体および仕切板
とシールドカバーとは面による電気的な接触が得
られ、かつ、シールドカバーに設けた弾性突起お
よび弾性接触片と枠体および仕切板の突起との機
械的接触により、それらの接触が保持され、安定
かつ良好なシールド効果が得られるものである。 According to the present invention, electrical contact can be obtained between the frame body and the partition plate of the tuner, etc., and the shield cover through the surfaces, and the elastic protrusions and elastic contact pieces provided on the shield cover and the protrusions of the frame body and the partition plate can be connected. The mechanical contact maintains the contact and provides a stable and good shielding effect.

[Brief explanation of drawings]

第１図は従来のシールド構造の一例の断面図、
第２図は本考案の一実施例であるシールド構造の
断面図である。１…枠体、２…仕切板、３…シールドカバー、
４…突起、５，６…弾性接触部、７…枠体、８…
仕切板、９…シールドカバー、１０…弾性突起、
１１，１２…弾性接触部、１３，１４，１５…面
接触部、１６，１７，１８…突起。 Figure 1 is a cross-sectional view of an example of a conventional shield structure.
FIG. 2 is a sectional view of a shield structure that is an embodiment of the present invention. 1...frame body, 2...partition plate, 3...shield cover,
4...Protrusion, 5, 6...Elastic contact portion, 7...Frame body, 8...
Partition plate, 9... Shield cover, 10... Elastic protrusion,
11, 12... Elastic contact portion, 13, 14, 15... Surface contact portion, 16, 17, 18... Protrusion.

Claims

[Claims for Utility Model Registration] A frame body formed in a U-shape in cross section, a partition plate arranged inside the frame body to partition the inside of the frame body, and a contact piece that contacts the frame body and the partition plate. In the tuner shield structure having a shield cover, the tops of the frame and the partition plate include a surface contact part that is bent at right angles to the frame and the partition plate and makes surface contact with the shield cover, and a surface contact part. and a protrusion provided on the opposite side, and the shield cover is provided with an elastic contact piece and an elastic protrusion that make elastic contact with the protrusion formed on the frame and the partition plate. Chiyuna's shield structure.