JP2008196714A - Louver for electric/electronic device storage box - Google Patents

Louver for electric/electronic device storage box Download PDF

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Publication number
JP2008196714A
JP2008196714A JP2007029426A JP2007029426A JP2008196714A JP 2008196714 A JP2008196714 A JP 2008196714A JP 2007029426 A JP2007029426 A JP 2007029426A JP 2007029426 A JP2007029426 A JP 2007029426A JP 2008196714 A JP2008196714 A JP 2008196714A
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storage box
spring plate
louver
mounting ring
electric
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JP2007029426A
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JP4911703B2 (en
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Hiroshi Gama
宏 蒲
Yasuhito Fujino
泰人 藤野
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Nitto Kogyo Corp
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Nitto Kogyo Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a louver for an electric/electronic device storage box easily mountable on an opening portion of the electric/electronic device storage box, and free from loosening by vibration of a ventilation fan even when the ventilation fan is mounted. <P>SOLUTION: In this louver for the electric/electronic device storage box, mounted on an electric/electronic device storage box 200 by fitting a mounting ring 2 in an outer periphery of a short ventilation cylindrical portion 11 connected to a back face of a louver main body 1, to a circular ventilation opening portion 201 penetrated through the electric/electronic device storage box 200, from an outer side, a plurality of leaf portions 21 are disposed along an inner face of the mounting ring 2, and screw thread portions 12a engaged with male screw portions 12 formed on an outer periphery of the short ventilation cylindrical portion 11, are formed on the leaf portions 21. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、電気・電子機器を収納した電気電子機器収納箱に透設した開口部に取り付けてガラリにより雨水の浸入を防止して箱内の換気を行う電気電子機器収納箱用ルーバーに関するものである。   The present invention relates to a louver for an electrical / electronic equipment storage box that is attached to an opening formed in an electrical / electronic equipment storage box that stores electrical / electronic equipment and prevents ventilation of the rain water by ventilating the inside of the box. is there.

電気電子機器収納箱の開口部に取り付けてルーバーにより雨水の浸入を防止して箱内の換気を行う電気電子機器収納箱用ルーバーとしては、図８に示すようにガラリ１００ａを備えたルーバー本体１００の背面に連設した短円換気筒部１０１の外周に雄ねじ部１０２を設けて、該短円換気筒部１０１を電気電子機器収納箱２００の円形開口部２０１に外側から嵌合して、前記雄ねじ部１０２に取付リング３００の雌ねじ部３０１を螺合して取り付けたものが知れている（例えば、特許文献１参照）。   A louver main body 100 having a louver 100a as shown in FIG. 8 is used as an electric / electronic equipment storage box louver which is attached to the opening of the electrical / electronic equipment storage box and prevents the intrusion of rainwater by the louver to ventilate the inside of the box. A male screw part 102 is provided on the outer periphery of the short circular ventilation cylinder part 101 continuously provided on the back surface of the first circular cylinder, and the short circular ventilation cylinder part 101 is fitted into the circular opening 201 of the electric / electronic device storage box 200 from the outside, A device in which a female screw portion 301 of a mounting ring 300 is screwed onto a male screw portion 102 is known (for example, see Patent Document 1).

ところが、前記のような従来のものは取付リング３００を数回回転させて固定しなければならないため、作業に時間がかかる問題がある。また、換気効率を上げるため換気扇を取り付けた場合に換気扇の振動により取付リング３００の緩みが発生しやすいものであった。
実開平６−３１１９７号公開公報 However, the conventional device as described above has a problem that it takes time to work because the mounting ring 300 must be fixed by rotating it several times. Further, when the ventilation fan is attached to increase the ventilation efficiency, the attachment ring 300 is likely to be loosened due to the vibration of the ventilation fan.
Japanese Utility Model Publication No. 6-31197

本発明は前記のような従来の問題点を解決して、電気電子機器収納箱の開口部への取付作業が簡単なうえ換気扇を取り付けても換気扇の振動により取付が緩むことのない電気電子機器収納箱用ルーバーを提供する。   The present invention solves the above-mentioned conventional problems, and the electrical and electronic equipment is easy to attach to the opening of the electrical and electronic equipment storage box and does not loosen due to vibration of the ventilation fan even if the ventilation fan is attached. Provide storage box louvers.

本発明の電気電子機器収納箱用ルーバーは、電気電子機器収納箱に透設した換気用の開口部に外側から嵌合したルーバー本体の背面に連設した短円換気筒部の外周に取付リングを嵌着して電気電子機器収納箱に取付ける電気電子機器収納箱用ルーバーにおいて、取付リングの内面に添うように複数のばね板部を設け、該ばね板部に前記短円換気筒部の外周に設けた雄ねじ部に螺合できるねじ山部を設けたことを特徴とするものを基本の発明とする。   The louver for electrical and electronic equipment storage box according to the present invention has a mounting ring on the outer periphery of a short circular ventilation cylinder portion continuously provided on the back surface of the louver body fitted from the outside to a ventilation opening provided in the electrical and electronic equipment storage box. In the electric and electronic equipment storage box louver that is attached to the electric and electronic equipment storage box, a plurality of spring plate portions are provided so as to follow the inner surface of the mounting ring, and the outer circumference of the short circular ventilation cylinder portion is provided on the spring plate portion. A basic invention is characterized in that a screw thread portion that can be screwed into the male screw portion provided in is provided.

そして、この発明において、取付リングに換気扇固定ねじ螺合用の雌ねじ部を該雌ねじ部のねじ孔の端部が臨む個所がばね板部の外面側に位置するように設けるとともに、ばね板部の外面に前記雌ねじ部に螺合した換気扇固定ねじの軸部が当接する当接部を設けることが好ましい。   In the present invention, the internal thread portion for screwing the ventilation fan fixing screw is provided on the mounting ring so that the portion where the end of the screw hole of the internal thread portion faces is located on the outer surface side of the spring plate portion, and the outer surface of the spring plate portion It is preferable to provide a contact portion with which a shaft portion of a ventilation fan fixing screw screwed into the female screw portion contacts.

前記した本発明の電気電子機器収納箱用ルーバーは、取付リングは内面に添うように複数のばね板部を設け、該ばね板部に短円換気筒部の外周に設けた雄ねじ部に螺合できるねじ山部を設けたものであるから、電気電子機器収納箱に透設した開口部に外側から嵌合した短円換気筒部に取付リングを嵌着する際に該取付リングを短円換気筒部に向け押し込む。そうすると、複数のばね板部に設けたねじ山部が短円換気筒部の外周に設けた雄ねじ部の山部に当って前記ばね板部は外向きに撓んで該雄ねじ部の山部を乗越えたうえ取付リングの先端面が開口部の周面に達したらばね板部に設けたねじ山部が雄ねじ部の谷部に係合して雄ねじ部に螺合した状態となるので、その後に螺合方向に少し締めるだけで容易に取り付けできるもので取付リングを数回回転させるという面倒な作業を不要とするものである。逆に取付リングを取り外す時には取付リングを緩め方向に回転させればばね板部に設けたねじ山部が雄ねじ部との螺合を解かれて取り外すことができるものである。   In the above-described louver for electrical and electronic equipment storage box according to the present invention, the mounting ring is provided with a plurality of spring plate portions so as to follow the inner surface, and the spring plate portion is screwed into a male screw portion provided on the outer periphery of the short circular ventilation cylinder portion. Since the threaded part can be provided, the mounting ring is short-circulated when the mounting ring is fitted to the short-circular ventilation cylinder part fitted from the outside to the opening pierced through the electrical and electronic equipment storage box. Push toward the tube. Then, the threaded parts provided on the plurality of spring plate parts hit the threaded part of the male threaded part provided on the outer periphery of the short-circular ventilation cylinder part, and the spring plate part bends outward to get over the threaded part of the male threaded part. In addition, when the tip surface of the mounting ring reaches the peripheral surface of the opening, the threaded portion provided on the spring plate engages with the valley of the male threaded portion and is screwed into the male threaded portion. It can be easily attached with a little tightening in the opposite direction, eliminating the troublesome work of rotating the attachment ring several times. Conversely, when removing the attachment ring, if the attachment ring is loosened and rotated in the direction, the threaded portion provided on the spring plate part can be unscrewed from the male screw part and removed.

また、取付リングに換気扇固定ねじ螺合用の雌ねじ部を該雌ねじ部のねじ孔の端部が臨む個所がばね板部の外面側に位置するように設けるとともに、ばね板部の外面に前記雌ねじ部に螺合する換気扇固定ねじの軸部が当接する突起部を形成したものとすれば、取付リングに換気扇固定ねじにより換気扇を短円換気筒部の背面に臨むように取り付ける場合に、換気扇固定ねじの軸部がばね板部の外面の当接部に当接してばね板部の外向きへの撓みを規制するので、短円換気筒部の外周の雄ねじ部に螺合しているばね板部のねじ山が換気扇の振動により外れることなく強固に固定できるものである。   Further, a female screw part for screwing the ventilation fan fixing screw is provided on the mounting ring so that the portion where the end of the screw hole of the female screw part faces is located on the outer surface side of the spring plate part, and the female screw part is provided on the outer surface of the spring plate part. If the shaft of the ventilation fan fixing screw that is screwed to the projection is formed, the ventilation fan fixing screw is used when the ventilation fan is attached to the mounting ring with the ventilation fan fixing screw so that it faces the back of the short circular ventilation cylinder. Since the shaft portion of the spring plate abuts against the abutting portion of the outer surface of the spring plate portion and restricts the outward bending of the spring plate portion, the spring plate portion screwed with the male screw portion on the outer periphery of the short circular ventilation cylinder portion Can be firmly fixed without detaching due to the vibration of the ventilation fan.

次に、本発明の好ましい実施の形態を図に基づき説明する。
図１において、１は前面にガラリ１ａを備えたルーバー本体であり、該ルーバー本体１は背面に短円換気筒部１１を連設し、該短円換気筒部１１を電気電子機器収納箱２００に透設した円形の開口部２０１に外側から嵌合するものである。そして、該短円換気筒部１１の外周に取付リング２を嵌着して電気電子機器収納箱に取付ける。 Next, a preferred embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a louver main body having a louver 1a on the front surface. The louver main body 1 has a short circular ventilation cylinder portion 11 connected to the rear surface, and the short circular ventilation cylinder portion 11 is connected to an electric / electronic equipment storage box 200. It fits into the circular opening 201 pierced through from the outside. Then, the attachment ring 2 is fitted on the outer periphery of the short circular ventilation cylinder portion 11 and attached to the electric / electronic equipment storage box.

前記短円換気筒部１１の外周に取付リング２を嵌着する手段は、短円換気筒部１１の外周に雄ねじ部１２を設け、他方取付リング２の内面に添うように複数のばね板部２１を設けて該複数のばね板部２１に前記短円換気筒部１１の外周に設けた雄ねじ部１２に螺合するねじ山部２１ａを備えたものとしている。     The means for fitting the mounting ring 2 on the outer periphery of the short circular ventilation cylinder portion 11 is provided with a male screw portion 12 on the outer periphery of the short circular ventilation cylinder portion 11 and a plurality of spring plate portions so as to follow the inner surface of the other mounting ring 2. 21 is provided, and a plurality of spring plate portions 21 are provided with screw thread portions 21 a that are screwed into male screw portions 12 provided on the outer periphery of the short circular ventilation cylinder portion 11.

短円換気筒部１１に取付リング２を嵌着する作業は、先ず、該取付リング２を短円換気筒部１１に向けて押し込む。そうすると、複数のばね板部２１に設けたねじ山部２１ａが短円換気筒部１１の外周に設けた雄ねじ部１２の山部に当って前記ばね板部２１は外向きに撓んで該雄ねじ部１２の山部を乗越えたうえ取付リング２の先端面が円形の開口部２０１の周面に達したらばね板部２１に設けたねじ山部２１ａが雄ねじ部１２の谷部に係止して雄ねじ部１２に螺合した状態となるので、その後に螺合方向に少し締めるだけで容易に取り付けできるもので取付リングを数回回転させるという面倒な作業を不要とするものである。   In the operation of fitting the attachment ring 2 to the short circular ventilation cylinder portion 11, first, the attachment ring 2 is pushed toward the short circular ventilation cylinder portion 11. Then, the threaded portions 21a provided on the plurality of spring plate portions 21 abut on the mountain portions of the external threaded portion 12 provided on the outer periphery of the short circular ventilation tube portion 11, and the spring plate portion 21 bends outward to be deformed. When the top surface of the mounting ring 2 reaches the peripheral surface of the circular opening 201, the thread portion 21a provided on the spring plate portion 21 is engaged with the valley portion of the male screw portion 12 and the male thread is reached. Since it is in a state of being screwed to the portion 12, it can be easily attached by only a little tightening in the screwing direction thereafter, and the troublesome work of rotating the attachment ring several times is unnecessary.

また、逆に取付リング２を取り外す時には取付リング２を緩め方向に回転させればばね板部２１に設けたねじ山部２１ａが雄ねじ部１２との螺合を解かれて取り外すことができるものである。     On the other hand, when the attachment ring 2 is removed, if the attachment ring 2 is rotated in the loosening direction, the screw thread portion 21a provided on the spring plate portion 21 can be unscrewed from the male screw portion 12 and removed. is there.

なお、前記ねじ山部２１ａを備えたばね板部２１は取付リング２の一方の端面内側に基端をもって連繋させて設け、また、ばね板部２１の外面が位置する取付リング２の内側にはばね板部２１が外側に撓む空間２２を形成している。すなわち、図示のものは短円換気筒部１１に嵌着するルーバー本体１側である先端面とは反対側の取付リング２の基端面内側に等間隔に６枚のばね板部２１をその基端をもって連繋して設ける構成を採用し、また、該ばね板部２１が外側に撓む空間２２は一つ置きの３枚のばね板部２１については取付リング２のばね板部２１の外面が臨む内面に窪み部２２ａを形成したものとし、他の３枚のばね板部２１については取付リング２のばね板部２１の外面が臨む先端面側の個所を切欠部２２ｂに形成したものとしている。     The spring plate portion 21 provided with the screw thread portion 21a is provided to be connected with the base end inside one end surface of the mounting ring 2, and the spring plate portion 21 is provided with a spring on the inner side of the mounting ring 2 where the outer surface of the spring plate portion 21 is located. A space 22 in which the plate portion 21 bends outward is formed. That is, in the illustrated one, six spring plate portions 21 are provided at equal intervals on the inner side of the base end surface of the mounting ring 2 on the side opposite to the front end surface on the louver main body 1 side to be fitted to the short circular ventilation cylinder portion 11. A configuration in which the ends are connected to each other is adopted, and the space 22 in which the spring plate portion 21 bends outward is the outer surface of the spring plate portion 21 of the mounting ring 2 for every other three spring plate portions 21. It is assumed that the recessed portion 22a is formed on the inner surface facing, and the other three spring plate portions 21 are formed on the notch portion 22b on the tip surface side where the outer surface of the spring plate portion 21 of the mounting ring 2 faces. .

また、取付リング２には換気扇固定ねじ螺合用の雌ねじ部３０を該雌ねじ部３０のねじ孔の端部が臨む個所がばね板部２１の外面側に位置するように設けてあるとともに、ばね板部２１の外面に前記雌ねじ部３０に螺合する換気扇固定ねじ３１の軸部が当接する突起部２１ｂを設けている。   The mounting ring 2 is provided with a female screw portion 30 for screwing the ventilation fan fixing screw so that the end of the screw hole of the female screw portion 30 faces the outer surface side of the spring plate portion 21. A protrusion 21b is provided on the outer surface of the portion 21 so as to abut the shaft portion of the ventilation fan fixing screw 31 screwed into the female screw portion 30.

すなわち、図示のものは雌ねじ部３０を、６枚のばね板部２１の全てに対応させることなく取付リング２のばね板部２１の外面が臨む個所を切欠部２２ｂに形成した該切欠部２２ｂの底部基端側に設けたものとしている。また、取付リング２の他のばね板部２１が設けた個所の基端面には換気扇仮止め用の係止爪付きの係止突起２１ｃが設けられており、換気扇３の先端面に設けた係止孔３２と係合するものとしている。     That is, in the illustrated example, the female screw portion 30 does not correspond to all of the six spring plate portions 21, and the cutout portion 22b is formed with a portion where the outer surface of the spring plate portion 21 of the mounting ring 2 faces the cutout portion 22b. It is assumed to be provided on the bottom base end side. Further, a locking projection 21c with a locking claw for temporarily fixing the ventilation fan is provided on the base end surface of the place where the other spring plate portion 21 of the mounting ring 2 is provided, and the engagement provided on the distal end surface of the ventilation fan 3 is provided. It is assumed that it engages with the stop hole 32.

このように取付リング２に換気扇固定ねじ螺合用の雌ねじ部３０を設けることにより、換気扇固定ねじ３１により換気扇３を短円換気筒部１１の背面に臨むように取り付ければ、換気扇固定ねじ３１の先端側の軸部が雌ねじ部３０の基端から抜け出てばね板部２１の外面に設けられた該軸部が当接する当接部である突起部２１ｂに当接して該ばね板部２１の外向きへの撓みを規制するので、短円換気筒部１１の外周の雄ねじ部１２に螺合しているばね板部２１のねじ山部２１ａが換気扇の振動により外れることなく強固に固定できるものである。     In this manner, by providing the mounting ring 2 with the female screw portion 30 for screwing the ventilation fan fixing screw, if the ventilation fan 3 is attached to the rear surface of the short circular ventilation cylinder portion 11 with the ventilation fan fixing screw 31, the tip of the ventilation fan fixing screw 31 is provided. The shaft portion on the side comes out of the proximal end of the female screw portion 30 and comes into contact with a protruding portion 21b which is a contact portion with which the shaft portion is provided on the outer surface of the spring plate portion 21 so that the spring plate portion 21 faces outward. Therefore, the thread 21a of the spring plate 21 that is screwed to the male thread 12 on the outer periphery of the short circular ventilation cylinder 11 can be firmly fixed without detachment due to the vibration of the ventilation fan. .

なお、前記のようにばね板部２１を取付リング２の基端面内側に基端をもって連繋して設けた構成を採用することなく、これとは逆にばね板部２１を取付リング２の先端面内側に基端をもって連繋して設ける構成を採用してもよい。この場合にばね板部２１が外側に撓む空間２２に形成する切欠部２２ｂは取付リング２のばね板部２１の外面が臨む基端面側の個所に形成し、また、換気扇固定ねじ螺合用の雌ねじ部３０も取付リング２の先端面側に設けることとなる。また、雌ねじ部３０も取付リング２の先端面側に設けることとなるため、ばね板部２１の外面の突起部２１ｂに当接する換気扇固定ねじ３１の軸部も雌ねじ部３０に螺合する換気扇固定ねじ３１の先端側よりねじ頭部側の軸部となる。   It should be noted that the spring plate portion 21 is connected to the inner surface of the base end surface of the mounting ring 2 with the base end as described above, and the spring plate portion 21 is conversely disposed on the front end surface of the mounting ring 2. You may employ | adopt the structure provided by connecting with a base end inside. In this case, the notch portion 22b formed in the space 22 where the spring plate portion 21 bends outward is formed at a position on the base end surface side where the outer surface of the spring plate portion 21 of the mounting ring 2 faces, and is used for screwing the ventilation fan fixing screw. The female thread portion 30 is also provided on the tip surface side of the mounting ring 2. Further, since the female screw portion 30 is also provided on the front end surface side of the mounting ring 2, the ventilation fan fixing that the shaft portion of the ventilation fan fixing screw 31 that contacts the projection 21 b on the outer surface of the spring plate portion 21 is also screwed into the female screw portion 30. It becomes a shaft portion on the screw head side from the tip side of the screw 31.

本発明の実施形態を分解して示す斜視図。The perspective view which decomposes | disassembles and shows embodiment of this invention. ルーバー本体と取付リングを示す斜視図。The perspective view which shows a louver main body and a mounting ring. 取付リングの概略断面図。The schematic sectional drawing of a mounting ring. 換気扇を装着して換気扇固定ねじを螺合していない状態の断面図。Sectional drawing of the state which mounts a ventilation fan and does not screw the ventilation fan fixing screw. 換気扇を装着して換気扇固定ねじを螺合していない状態の要部断面図。The principal part sectional view of the state where the ventilation fan is mounted and the ventilation fan fixing screw is not screwed. 換気扇を装着して換気扇固定ねじを螺合した状態の断面図。Sectional drawing of the state which equipped the ventilation fan and screwed the ventilation fan fixing screw. 換気扇を装着して換気扇固定ねじを螺合した状態の要部断面図。The principal part sectional drawing of the state which equipped the ventilation fan and screwed the ventilation fan fixing screw. 従来例を示す斜視図。The perspective view which shows a prior art example.

符号の説明Explanation of symbols

１ ルーバー本体
11 短円換気筒部
12 雄ねじ部
２ 取付リング
21 ばね板部
21a ねじ山部
21b 突起部
30 換気扇固定ねじ螺合用の雌ねじ部
31 換気扇固定ねじ 1 Louver body
11 Short circular ventilation cylinder
12 Male thread 2 Mounting ring
21 Spring plate
21a Thread part
21b Projection
30 Female thread part for screwing the ventilation fan fixing screw
31 Ventilation fan fixing screw

Claims (2)

電気電子機器収納箱に透設した換気用の開口部に外側から嵌合したルーバー本体の背面に連設した短円換気筒部の外周に取付リングを嵌着して電気電子機器収納箱に取付ける電気電子機器収納箱用ルーバーにおいて、取付リングの内面に添うように複数のばね板部を設け、該ばね板部に前記短円換気筒部の外周に設けた雄ねじ部に螺合できるねじ山部を設けたことを特徴とする電気電子機器収納箱用ルーバー。   Attaching a mounting ring to the outer periphery of the short circular ventilation tube part connected to the back of the louver body fitted from the outside to the opening for ventilation provided in the electrical and electronic equipment storage box and attaching it to the electrical and electronic equipment storage box In the electric and electronic equipment storage box louver, a plurality of spring plate portions are provided so as to follow the inner surface of the mounting ring, and a screw thread portion that can be screwed to the male screw portion provided on the outer periphery of the short circular ventilation cylinder portion. A louver for electrical and electronic equipment storage box. 取付リングに換気扇固定ねじ螺合用の雌ねじ部を該雌ねじ部のねじ孔の端部が臨む個所がばね板部の外面側に位置するように設けるとともに、ばね板部の外面に前記雌ねじ部に螺合した換気扇固定ねじの軸部が当接する当接部を設けた請求項１に記載の電気電子機器収納箱用ルーバー。   The mounting ring is provided with a female screw portion for screwing the ventilation fan fixing screw so that the end of the screw hole of the female screw portion faces the outer surface side of the spring plate portion, and is screwed onto the female screw portion on the outer surface of the spring plate portion. The electric and electronic equipment storage box louver according to claim 1, further comprising a contact portion with which a shaft portion of the combined ventilation fan fixing screw contacts.
JP2007029426A 2007-02-08 2007-02-08 Louver for electrical and electronic equipment storage box Active JP4911703B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010267751A (en) * 2009-05-14 2010-11-25 Nitto Electric Works Ltd Fitting structure of ventilation fan of box for electronic equipment storage
JP2010276328A (en) * 2009-06-01 2010-12-09 Kawamura Electric Inc Louver for ventilation
JP2016012597A (en) * 2014-06-27 2016-01-21 日東工業株式会社 Ventilation device for electric apparatus storing box
CN112717580A (en) * 2020-12-28 2021-04-30 王胜 Air purification device for storage of archive storehouse

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02127092A (en) * 1988-11-08 1990-05-15 Hitachi Maxell Ltd Ic card module
JP2001281005A (en) * 2000-02-10 2001-10-10 Mannesmann Vdo Ag Display measuring instrument
JP2002357344A (en) * 2001-05-31 2002-12-13 Kawamura Electric Inc Mounting structure for louver with fan

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02127092A (en) * 1988-11-08 1990-05-15 Hitachi Maxell Ltd Ic card module
JP2001281005A (en) * 2000-02-10 2001-10-10 Mannesmann Vdo Ag Display measuring instrument
JP2002357344A (en) * 2001-05-31 2002-12-13 Kawamura Electric Inc Mounting structure for louver with fan

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010267751A (en) * 2009-05-14 2010-11-25 Nitto Electric Works Ltd Fitting structure of ventilation fan of box for electronic equipment storage
JP2010276328A (en) * 2009-06-01 2010-12-09 Kawamura Electric Inc Louver for ventilation
JP2016012597A (en) * 2014-06-27 2016-01-21 日東工業株式会社 Ventilation device for electric apparatus storing box
CN112717580A (en) * 2020-12-28 2021-04-30 王胜 Air purification device for storage of archive storehouse

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