JP4675651B2 - Ventilation fan - Google Patents

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JP4675651B2
JP4675651B2 JP2005067438A JP2005067438A JP4675651B2 JP 4675651 B2 JP4675651 B2 JP 4675651B2 JP 2005067438 A JP2005067438 A JP 2005067438A JP 2005067438 A JP2005067438 A JP 2005067438A JP 4675651 B2 JP4675651 B2 JP 4675651B2
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protective case
flange
connection terminal
window
power
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JP2006250434A (en
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一也 岡山
比出晴 小野
博 横山
信幸 川又
新 篠塚
大輔 矢部
大祐 小林
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Mitsubishi Electric Corp
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Description

本発明は、ファンモータと電気的に接続された電源接続端子を有する換気扇に関するものである。   The present invention relates to a ventilation fan having a power connection terminal electrically connected to a fan motor.

ファンモータと電気的に接続された電源接続端子を有する換気扇では、電源線を電源接続端子（速結端子）に被覆を除去して差込むだけで結線ができる。そして、さらに、電源接続端子への電源線への差込み作業をし易くするために電源接続端子を差込み易い位置に回動できるようにしたものがある。なお、この種の従来技術としては、特許文献１に開示されたものが有る。   In a ventilation fan having a power supply connection terminal electrically connected to the fan motor, the power supply line can be connected simply by removing the coating from the power supply connection terminal (fast connection terminal). Further, there is one that can be rotated to a position where the power connection terminal can be easily inserted in order to facilitate the work of inserting the power supply line into the power connection terminal. In addition, there exists what was disclosed by patent document 1 as this kind of prior art.

特開２０００−１２１１１９号公報JP 2000-121119 A

上記この種の従来の換気扇においては、電源接続端子に支持ピンの係合部を設け、取付相手の換気扇のフランジには、支持ピンを持つ一対の支持片を設けなければならず、専用の電源接続端子を作らなければならない。また、結線した電源接続端子を塵埃から保護するための保護カバーを設けることも有るが、保護カバーの取付けは、取付ネジによって行われ、工具を使って行わなければならず、壁、天井などの高所では、狭隘な部分でもあり作業し辛いといった問題点がある。   In this type of conventional ventilation fan, a support pin engaging portion must be provided on the power connection terminal, and a pair of support pieces having support pins must be provided on the flange of the attachment fan. You must make a connection terminal. In addition, a protective cover may be provided to protect the connected power connection terminals from dust, but the protective cover must be attached with mounting screws and must be used with tools, such as walls and ceilings. In high places, there is a problem that it is a narrow part and difficult to work.

本発明は、係る従来の問題点を解決するためになされたものであって、その課題とするところは、普通仕様の電源接続端子を備え、結線作業の容易な、ネジ付けにする部品なしに結線部の塵埃保護機能を備えた換気扇を得ることである。   The present invention has been made in order to solve the conventional problems, and the problem is that the power supply connection terminal of the normal specification is provided, and the connection work is easy and there is no part to be screwed. The object is to obtain a ventilation fan having a dust protection function for the connection part.

前記課題を達成するために本発明は、ファンモータを風洞に取付けた本体の前面に、吸込口を有し半径方向に広がるフランジを備え、このフランジは、周囲に形成された背面立上りによって背面が凹状に形成されている換気扇について、そのファンモータに電気的に接続された電源接続端子を有し、電源接続端子をフランジの背面の凹部内に設けた保護ケースに収納し、保護ケースは、電源接続端子の接続部を呈出させる窓を有し、窓の対向側においてフランジの背面に回動可能に支持部において両持支持され、倒伏起立できる構成とする手段を採用する。   In order to achieve the above-mentioned object, the present invention comprises a flange having a suction port and extending in the radial direction on the front surface of a main body in which a fan motor is attached to a wind tunnel. The ventilating fan formed in a concave shape has a power connection terminal electrically connected to the fan motor, and the power connection terminal is housed in a protective case provided in the concave part on the back of the flange. A means is adopted that has a window for presenting the connection portion of the connection terminal, is supported at both ends by the support portion so as to be rotatable on the back surface of the flange on the opposite side of the window, and can stand upright.

上記手段を採用することにより、電源接続端子は、保護ケースごと起立させて窓から呈出する接続部に結線することができ、倒伏させて凹部に収めれば、結線作業が完了する。従って、普通仕様の電源接続端子による、結線作業の容易な、ネジ付けにする部品なしに結線部の塵埃保護機能を備えた換気扇が得られる。   By adopting the above-mentioned means, the power supply connection terminal can be connected to the connection part that stands up together with the protective case and is presented from the window. Therefore, it is possible to obtain a ventilating fan having a dust protecting function for the connecting portion without using a screwed part, which is easily connected by a power supply terminal of a normal specification.

本発明の換気扇は、ファンモータを風洞の中に取付脚によって取付けた本体を備えている。本体の前面には、吸込口を有し半径方向に広がるフランジを備えている。フランジは、周囲に形成された背面立上りによって背面が凹状に形成されている。ファンモータには、電気的に接続された電源接続端子が繋がっていて、その電源接続端子は、フランジの背面の凹部の一隅に収まるように設けた保護ケースに収納されている。保護ケースは、電気絶縁性のあるプラスチックで作られていて、電源接続端子の接続部を呈出させる窓を有し、窓の対向側においてフランジに回動可能に支持部において両持支持され、倒伏起立できる。保護ケースは、フランジの前面に対して垂直面内で回動でき、倒伏状態ではフランジ背面に接合し、凹部内に収まっている。   The ventilation fan of this invention is equipped with the main body which attached the fan motor in the wind tunnel with the attachment leg. The front surface of the main body is provided with a flange having a suction port and extending in the radial direction. The back surface of the flange is formed in a concave shape by the back surface rising formed around the flange. An electrically connected power connection terminal is connected to the fan motor, and the power connection terminal is housed in a protective case provided so as to fit in one corner of the recess on the back surface of the flange. The protective case is made of an electrically insulating plastic, has a window for presenting the connection portion of the power connection terminal, and is supported at both ends at the support portion so as to be rotatable to the flange on the opposite side of the window, You can stand up. The protective case can be rotated in a vertical plane with respect to the front surface of the flange, and in a lying state, the protective case is joined to the rear surface of the flange and is contained in the recess.

電源接続端子は、保護ケースごと起立させて窓から呈出する接続部に電源コードを結線することができ、倒伏させて凹部に収めれば、結線作業が完了する。保護ケースは、電源接続端子をほぼ包み込む構造になっていて、塵埃から電源接続端子を保護する機能を果たす。   The power connection terminal can be connected to the connection portion that stands up together with the protective case and is presented from the window. The protective case has a structure that substantially encloses the power connection terminal, and functions to protect the power connection terminal from dust.

実施の形態１．
図１は、本実施の形態の換気扇を、保護ケースを倒伏させて示す背面斜視図、図２は、、保護ケースを起立させて示す換気扇の背面斜視図、図３は、換気扇の保護ケース部分を拡大して示す背面斜視図、図４は、図３の換気扇の保護ケース部分を除いて示す背面斜視図、図５は、保護ケースの斜視図、図６は、保護ケースの分解斜視図、図７は、保護ケースの動作を示す側断面図である。 Embodiment 1 FIG.
1 is a rear perspective view showing the ventilation fan of the present embodiment with the protective case lying down, FIG. 2 is a rear perspective view of the ventilation fan showing the protective case upright, and FIG. 3 is a protective case portion of the ventilation fan. 4 is an enlarged rear perspective view, FIG. 4 is a rear perspective view excluding the protective case portion of the ventilation fan of FIG. 3, FIG. 5 is a perspective view of the protective case, and FIG. 6 is an exploded perspective view of the protective case. FIG. 7 is a side sectional view showing the operation of the protective case.

本発明の換気扇は、ファンモータ１を風洞２の中に三本の取付脚３によって取付けた本体４を備えている（図１参照）。本体４の前面には、吸込口を有し半径方向に広がるフランジ５を備えている。フランジ５は、周囲に形成された背面立上り６によって背面が凹状に形成されている。ファンモータ１には、電気的に接続された電源接続端子７が繋がっていて、その電源接続端子７は、フランジ５の背面の凹部８の一隅に収まるように設けた保護ケース９に収納されている。保護ケース９は、電気絶縁性のあるプラスチックで作られていて、電源接続端子７の接続部１０を呈出させる窓１１を有し、窓１１の対向側においてフランジ５に回動可能に支持部１２，１３において両持支持され、倒伏起立できる（図１，２参照）。保護ケース９は、フランジ５の前面に対して垂直面内で０度から１１０度の範囲で回動でき、倒伏状態ではフランジ背面に接合し、図３に示すように凹部８内に収まっている。   The ventilation fan according to the present invention includes a main body 4 in which a fan motor 1 is mounted in a wind tunnel 2 by three mounting legs 3 (see FIG. 1). A front surface of the main body 4 is provided with a flange 5 having a suction port and extending in the radial direction. The flange 5 has a back surface formed in a concave shape by a back surface rising 6 formed in the periphery. An electrically connected power connection terminal 7 is connected to the fan motor 1, and the power connection terminal 7 is accommodated in a protective case 9 provided so as to fit in one corner of the recess 8 on the back surface of the flange 5. Yes. The protective case 9 is made of an electrically insulating plastic, has a window 11 for presenting the connection portion 10 of the power supply connection terminal 7, and a support portion that is rotatable on the flange 5 on the opposite side of the window 11. 12 and 13 are supported at both ends and can stand upright (see FIGS. 1 and 2). The protective case 9 can be rotated in the range of 0 to 110 degrees in a vertical plane with respect to the front surface of the flange 5, and is joined to the rear surface of the flange in a lying state, and is accommodated in the recess 8 as shown in FIG. .

保護ケース９の片方の支持部１２は、円筒状の突出部として構成され、他の支持部１３は、軸状の突起として構成されている。円筒状の支持部１２の外周はリング状の溝１４が形成され、フランジ５の背面に設けられた対向する支持爪１５間に溝１４が弾性的に嵌め込まれ、軸状の支持部１３は、フランジ５の側面に設けられた係合孔１６に回動可能に嵌め込まれている。保護ケース９は図６に示すように、フランジ５の背面側の要素Ａと、内側の要素Ｂとに二分割され、係合構造１７で係脱可能に嵌め合わされている。保護ケース９の窓１１に接続部１０を向けて収込まれた電源接続端子７とファンモータ１とを電気的に接続している電線は、筒状の支持部１２に挿通されている。この構成を採用することにより、電線の捩じり剛性が保護ケース９に加わり、起立状態でのふら付きが防がれ、安定する。また、電線の保護も図ることができる。窓１１は、保護ケース９の側壁１８をフランジ側の要素Ａについて切欠いた部分１１ａと下カバーＣの開口部１１ｂとで構成され、保護ケース９を閉じたとき下カバーと組み合わさり電源線引出開口部分が形成される。保護ケース９を開いたときには下カバーＣは本体に係止固定されて本体側に残り電源接続端子７が現れる。電源線接続をして保護ケースを閉じたときは、保護ケースの開口部が塞がれ塵埃の侵入を防ぐことができる。図３では、電源線引出開口部分しか見えないが、図２のように回動させると電源接続端子７が現れる。   One support portion 12 of the protective case 9 is configured as a cylindrical projecting portion, and the other support portion 13 is configured as an axial projection. A ring-shaped groove 14 is formed on the outer periphery of the cylindrical support portion 12, and the groove 14 is elastically fitted between opposing support claws 15 provided on the back surface of the flange 5. A fitting hole 16 provided on the side surface of the flange 5 is rotatably fitted. As shown in FIG. 6, the protective case 9 is divided into an element A on the rear side of the flange 5 and an element B on the inner side, and is engaged with an engaging structure 17 so as to be detachable. An electric wire electrically connecting the power connection terminal 7 and the fan motor 1 housed in the window 11 of the protective case 9 with the connecting portion 10 facing is inserted into the cylindrical support portion 12. By adopting this configuration, the torsional rigidity of the electric wire is added to the protective case 9, and the wobbling in the standing state is prevented and stabilized. In addition, the electric wire can be protected. The window 11 includes a portion 11a in which the side wall 18 of the protective case 9 is cut out with respect to the element A on the flange side, and an opening 11b of the lower cover C. A part is formed. When the protective case 9 is opened, the lower cover C is locked and fixed to the main body, and the remaining power connection terminal 7 appears on the main body side. When the protective case is closed by connecting the power supply line, the opening of the protective case is blocked and dust can be prevented from entering. In FIG. 3, only the power line lead-out opening is visible, but when it is rotated as shown in FIG. 2, the power connection terminal 7 appears.

フランジ５における保護ケース９の回動側の背面立上り６の内側には保護ケース９に当たり、その回動を規制する回動規制突部１９が形成されている（図７参照）。これにより、保護ケース９の回動が１１０度くらいで規制され、結線し易い位置で安定して止めることができる。また、保護ケース９の回動側のフランジ５の背面には、弾性変形によって保護ケース９を保持し、保持解除できる保持爪２０が設けられ、倒伏状態の保護ケース９の安定性が確保されている（図４参照）。   A rotation restricting projection 19 is formed on the inside of the rear rising edge 6 on the rotation side of the protective case 9 in the flange 5 so as to hit the protective case 9 and restrict its rotation (see FIG. 7). As a result, the rotation of the protective case 9 is restricted to about 110 degrees, and can be stably stopped at a position where connection is easy. Further, on the back surface of the flange 5 on the rotating side of the protective case 9, there is provided a holding claw 20 that can hold and release the protective case 9 by elastic deformation, so that the stability of the protective case 9 in the lying state is ensured. (See FIG. 4).

この換気扇では、電源接続端子７は、保護ケース９ごと起立させて窓１１から呈出する接続部１０に電源コードを結線することができ、倒伏させて凹部８に収めれば、結線作業が完了する。倒伏状態の保護ケース９の安定性は、保持爪２０により確保されている。保護ケース９は、電源接続端子７をほぼ包み込む構造になっていて、塵埃から電源接続端子７を確り保護する機能を果たす。即ち、普通仕様の電源接続端子７による、結線作業の容易な、ネジ付けにする部品なしに結線部の塵埃保護機能を備えた換気扇が得られる。   In this ventilation fan, the power supply terminal 7 can stand together with the protective case 9 and connect the power cord to the connection portion 10 that is presented from the window 11. To do. The stability of the protective case 9 in a lying state is ensured by the holding claws 20. The protective case 9 has a structure that substantially encloses the power connection terminal 7 and fulfills a function of securely protecting the power connection terminal 7 from dust. In other words, a ventilation fan having a dust protection function for the connection portion can be obtained without using a screwed part, which is easy to connect by the power supply terminal 7 of the normal specification.

換気扇を、保護ケースを倒伏させて示す背面斜視図である。（実施の形態１）It is a back surface perspective view which shows a ventilation fan, with a protective case lying down. (Embodiment 1) 保護ケースを起立させて示す換気扇の背面斜視図である。（実施の形態１）It is a back perspective view of the ventilation fan which stands up and shows a protective case. (Embodiment 1) 換気扇の保護ケース部分を拡大して示す背面斜視図である。（実施の形態１）It is a back perspective view which expands and shows the protection case part of a ventilation fan. (Embodiment 1) 図３の換気扇の保護ケース部分を除いて示す背面斜視図である。（実施の形態１）FIG. 4 is a rear perspective view showing the ventilation fan of FIG. 3 except for a protective case portion. (Embodiment 1) 保護ケースの斜視図である。（実施の形態１）It is a perspective view of a protective case. (Embodiment 1) 保護ケースの分解斜視図である。（実施の形態１）It is a disassembled perspective view of a protective case. (Embodiment 1) 保護ケースの動作を示す側断面図である。（実施の形態１）It is a sectional side view which shows operation | movement of a protective case. (Embodiment 1)

符号の説明Explanation of symbols

１ ファンモータ、 ４ 本体、 ５ フランジ、 ６ 背面立上り、 ７ 電源接続端子、 ８ 凹部、 ９ 保護ケース、 １０ 接続部、 １１ 窓、 １２，１３ 支持部、 １５ 支持爪、 １７ 係合構造、 １９ 回動規制突部、 ２０ 保持爪。   DESCRIPTION OF SYMBOLS 1 Fan motor, 4 Main body, 5 Flange, 6 Back surface rising, 7 Power supply connection terminal, 8 Recessed part, 9 Protective case, 10 Connection part, 11 Window, 12, 13 Support part, 15 Support nail, 17 Engagement structure, 19 times 20 movement control protrusions, 20 holding claws.

Claims (1)

ファンモータが取付けられた円筒状の風洞が設けられ、前記風洞の前面側の吸入口の周囲に半径方向に広がるフランジを備え、前記フランジは、外周部に形成された背面立上りによって背面が凹状に形成されている換気扇であり、
前記ファンモータに電気的に接続された電源接続端子を有し、前記電源接続端子は前記フランジの背面の凹部の一隅に設けた保護ケースに収納され、
前記保護ケースは、電気絶縁性のあるプラスチックで作製され、前記電源接続端子の接続部を露呈させる窓を有し、この窓の対向側において前記フランジの背面に回動可能に両持支持されて倒伏起立可能とされ、
前記保護ケースは、前記電源接続端子の接続部を露呈させる窓に、塵埃の侵入を防止するよう嵌まり合う下カバーを有し、前記下カバーは前記フランジの背面に固定され、前記保護ケースが倒伏状態のとき電源引出開口部分を残して前記窓を閉塞し、前記保護ケースが起立状態のとき前記窓を開放して前記窓から前記電源接続端子の接続部を露呈させ、
前記保護ケースの反回動支点側を保持し、前記保護ケースを倒伏状態に弾性的に維持する保持爪が前記フランジの背面に設けられ、
前記保護ケースの回動範囲を規制する回動規制手段を設け、
前記保護ケースの回動軸の一方の支持部が筒状に構成され、前記ファンモータと前記電源接続端子を電気的に接続している電線の捩じり剛性が前記保護ケースに加わることのないように前記電線が前記筒状の支持部に挿通されている
ことを特徴とする換気扇。 Fan motor provided cylindrical air channel attached, a flange extending radially around the front side of the suction port of the air channel, said flange, the concave rear by rear rise formed on the outer peripheral portion Exhaust Fan der being formed is,
Having a power connection terminal electrically connected to the fan motor, the power connection terminal is housed in a protective case provided at one corner of the recess on the back of the flange;
The protective case is made of plastic with electrically insulating, having a window for exposing a connection portion of the power supply connection terminal, and is rotatably doubly supported supported at opposite sides of the window at the back of the flange It is possible to stand up ,
The protective case has a lower cover that fits into a window that exposes a connection portion of the power connection terminal to prevent dust from entering, and the lower cover is fixed to a back surface of the flange, and the protective case is Closing the window leaving a power outlet opening portion when in a lying state, opening the window when the protective case is in an upright state to expose the connection portion of the power connection terminal from the window,
A holding claw for holding the anti-rotation fulcrum side of the protective case and elastically maintaining the protective case in a lying state is provided on the back surface of the flange,
A rotation restricting means for restricting a rotation range of the protective case;
One support portion of the rotating shaft of the protective case is formed in a cylindrical shape, and the torsional rigidity of the electric wire electrically connecting the fan motor and the power supply connection terminal is not added to the protective case. So that the electric wire is inserted through the cylindrical support portion
A ventilation fan characterized by that .
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