JP2014053473A - Housing with liquid passage formed therein - Google Patents

Housing with liquid passage formed therein Download PDF

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JP2014053473A
JP2014053473A JP2012197429A JP2012197429A JP2014053473A JP 2014053473 A JP2014053473 A JP 2014053473A JP 2012197429 A JP2012197429 A JP 2012197429A JP 2012197429 A JP2012197429 A JP 2012197429A JP 2014053473 A JP2014053473 A JP 2014053473A
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communication
housing
partial housing
communication pipe
pipe
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Shinichiro Masaki
進一朗 正木
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Toyota Motor Corp
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Toyota Motor Corp
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Abstract

PROBLEM TO BE SOLVED: To close a housing 70 while combining a first partial housing 40 having a first liquid passage 42 formed therein, and a second partial housing 60 having a second liquid passage 62 formed therein, and then to connect the first liquid passage 42 and the second liquid passage 62.SOLUTION: An interconnection pipe is separated into a first interconnection pipe 10 which is interconnected with a first interconnection passage 42 when being fixed to a first partial housing 40, and a second interconnection pipe 20 which is interconnected with a second interconnection passage 62 when being fixed to a second partial housing 60. When combining the first partial housing and the second partial housing, one of the first interconnection pipe and the second interconnection pipe is inserted into the other, and they are connected liquid-tightly by means of an annular seal member.

Description

本明細書では、複数個の部分筐体を組み合わせて製造する筐体を開示する。特に、各々の部分筐体に液体流路に形成されており、筐体が完成すると、それらの液体流路が接続される筐体を開示する。   In the present specification, a housing manufactured by combining a plurality of partial housings is disclosed. In particular, a liquid passage is formed in each partial housing, and a housing to which the liquid passages are connected when the housing is completed is disclosed.

特許文献１に、筐体の内側を内部管が伸びており、内部管を通過する液体で筐体内に収容されている機器を冷却する筐体が開示されている。この種の筐体では、筐体の外側から内部管に液体を送り込み、内部管を通過した液体を筐体の外部に送りだす必要がある。特許文献１では、内部管の端部を筐体の外部に引き出す構造であって、筐体内部（正確には内部管の外側で筐体の内側の空間）に液体が漏れでない構造を開示している。   Patent Document 1 discloses a casing in which an inner tube extends inside the casing and cools a device housed in the casing with a liquid passing through the inner tube. In this type of housing, it is necessary to send liquid from the outside of the housing to the inner tube and to feed the liquid that has passed through the inner tube to the outside of the housing. Patent Document 1 discloses a structure in which the end of the inner tube is drawn out of the housing, and the liquid does not leak inside the housing (exactly, the space inside the housing outside the inner tube). ing.

特開２０１１−１９３６８１号公報JP 2011-193681 A

筐体は内部に機器を収容することから、複数個の部分筐体を組み合わせて製造する。少なくとも２つの部分筐体を組み合わせることによって筐体を閉じる。その際に、第１部分筐体にも液体流路（以下では第１液体流路という）を設け、第２部分筐体にも液体流路（以下では第２液体流路という）を設け、第１部分筐体と第２部分筐体を組み合わせたときに、第１液体流路と第２液体流路が直列に接続されるようにすると、筐体の体積を小型化でき、機器の冷却効率を高められることがある。特許文献１の技術は、第１液体流路と第２液体流路を接続するものでなく、そのための技術が必要とされる。   Since the casing accommodates the device inside, the casing is manufactured by combining a plurality of partial casings. The housing is closed by combining at least two partial housings. At that time, the first partial housing is also provided with a liquid flow path (hereinafter referred to as a first liquid flow path), and the second partial housing is also provided with a liquid flow path (hereinafter referred to as a second liquid flow path). When the first partial housing and the second partial housing are combined, if the first liquid channel and the second liquid channel are connected in series, the volume of the housing can be reduced, and the device can be cooled. Efficiency may be increased. The technique of Patent Document 1 does not connect the first liquid channel and the second liquid channel, and a technique for that purpose is required.

図４は、本明細書で開示する技術の完成途上において発明者らが検討した技術であり、第１部分筐体４０と第２部分筐体６０を組み合わせて筐体７０が完成する。第１部分筐体４０の内部には第１液体流路４２が形成されており、第２部分筐体６０の内部には第２液体流路６２が形成されている。
図４の構造では、第１液体流路４２と第２液体流路６２を接続するために、連通管８０を用いた。連通管８０の内部には連通流路が形成されている。ボルト孔９２，９６を利用してフランジ９０を第１部分筐体４０の壁４６に固定すると、フランジ９０に開孔している連通流路の一端９４が、第１液体流路４２の一端４４に連通する。また、挿入管８６を第２部分筐体６０の開孔６６に挿入し、ボルト孔８２を利用してフランジ８４を第２部分筐体の壁６８に固定すると、第２液体流路６２を形成している内部管６４の端部６４ａが挿入管８６に挿入され、挿入管８６を貫通している連通流路の一端８８が、第２液体流路６２の一端に連通する。 FIG. 4 is a technique studied by the inventors during the completion of the technique disclosed in this specification, and the casing 70 is completed by combining the first partial casing 40 and the second partial casing 60. A first liquid channel 42 is formed inside the first partial housing 40, and a second liquid channel 62 is formed inside the second partial housing 60.
In the structure of FIG. 4, the communication pipe 80 is used to connect the first liquid channel 42 and the second liquid channel 62. A communication channel is formed inside the communication pipe 80. When the flange 90 is fixed to the wall 46 of the first partial housing 40 using the bolt holes 92 and 96, the one end 94 of the communication channel opened in the flange 90 is connected to the one end 44 of the first liquid channel 42. Communicate with. Further, when the insertion tube 86 is inserted into the opening 66 of the second partial housing 60 and the flange 84 is fixed to the wall 68 of the second partial housing using the bolt hole 82, the second liquid channel 62 is formed. The end portion 64 a of the inner tube 64 is inserted into the insertion tube 86, and one end 88 of the communication channel passing through the insertion tube 86 communicates with one end of the second liquid channel 62.

上記の構成によって、第１部分筐体と第２部分筐体を組み合わせたときに第１液体流路と第２液体流路が直列に接続され、筐体の体積を小型化でき、機器の冷却効率を高めることが可能となるが、下記の問題を生じる。
第１部分筐体と第２部分筐体には製造公差が存在し、両者を組み合わせて固定した筐体７０にも製造公差が存在する。そのために、連通管８０を、第１部分筐体４０にも液密に固定し、第２部分筐体６０にも液密に固定することができない場合が生じる。あるいは、連通管８０に大きなストレスが作用した状態で、連通管８０を第１部分筐体４０と第２部分筐体６０に固定する場合が生じる。 With the above configuration, when the first partial housing and the second partial housing are combined, the first liquid channel and the second liquid channel are connected in series, and the volume of the housing can be reduced, thereby cooling the device. Although efficiency can be increased, the following problems occur.
There is a manufacturing tolerance in the first partial housing and the second partial housing, and there is also a manufacturing tolerance in the housing 70 fixed by combining both. Therefore, there is a case where the communication pipe 80 cannot be liquid-tightly fixed to the first partial housing 40 and cannot be fixed to the second partial housing 60 in a liquid-tight manner. Alternatively, the communication pipe 80 may be fixed to the first partial housing 40 and the second partial housing 60 in a state where a large stress is applied to the communication pipe 80.

本明細書では、第１部分筐体と第２部分筐体に存在する製造公差を許容し、連通管に大きなストレスを作用させることなく、第１部分筐体と第２部分筐体の双方に対して連通管を液密に固定することができる構造を開示する。   In this specification, the manufacturing tolerance which exists in a 1st partial housing | casing and a 2nd partial housing | casing is accept | permitted, and without making a big stress act on a communicating pipe, it applies to both a 1st partial housing | casing and a 2nd partial housing | casing. On the other hand, a structure capable of fixing the communication pipe in a liquid-tight manner is disclosed.

本明細書で開示する筐体は、第１部分筐体と第２部分筐体と第１連通管と第２連通管を備えている。第１部分筐体の内部に第１液体流路が形成されており、第１部分筐体を形成する壁に第１液体流路の端部に臨む第１開孔が形成されている。第２部分筐体の内部に第２液体流路が形成されており、第２部分筐体を形成する壁に第２液体流路の端部に臨む第２開孔が形成されている。第１連通管の内部に第１連通流路が形成されており、第１連通管を第１部分筐体に固定すると第１開孔を介して第１連通流路と第１液体流路が連通する。第２連通管の内部に第２連通流路が形成されており、第２連通管を第２部分筐体に固定すると第２開孔を介して第２連通流路と第２液体流路が連通する。第１部分筐体と第２部分筐体を組み合わせて筐体を閉じると、第１連通管と第２連通管のうちの一方が他方に挿入され、第１連通流路と第２連通流路が環状のシール部材によって液密に接続される。   The housing disclosed in the present specification includes a first partial housing, a second partial housing, a first communication pipe, and a second communication pipe. A first liquid channel is formed inside the first partial housing, and a first opening that faces the end of the first liquid channel is formed in a wall forming the first partial housing. A second liquid channel is formed inside the second partial housing, and a second opening that faces the end of the second liquid channel is formed in a wall forming the second partial housing. A first communication channel is formed inside the first communication tube. When the first communication tube is fixed to the first partial housing, the first communication channel and the first liquid channel are connected via the first opening. Communicate. A second communication channel is formed inside the second communication tube. When the second communication tube is fixed to the second partial housing, the second communication channel and the second liquid channel are connected via the second opening. Communicate. When the first partial housing and the second partial housing are combined to close the housing, one of the first communication tube and the second communication tube is inserted into the other, and the first communication channel and the second communication channel are inserted. Are fluid-tightly connected by an annular seal member.

上記によると第１連通管と第２連通管に分割されているために、第１部分筐体と第２部分筐体に製造公差が存在していても、第１部分筐体と第１連通管を液密に固定し、第２部分筐体と第２連通管を液密に固定することができる。第１連通管と第２連通管は、一方を他方に挿入することで接続する構造であるために、両者間にオーリング等の環状のシール部材を配置することで液密化することができる。第１連通管と第２連通管は、一方を他方に挿入できる位置関係であればたりことから、相対的位置関係のばらつきが許容される。またオーリング等のシール部材は柔軟であり、第１連通管と第２連通管の相対的位置関係が公差の範囲内でばらついたとしても、液密性を確保することができる。   According to the above, since the first communication pipe and the second communication pipe are divided, even if manufacturing tolerance exists between the first partial housing and the second partial housing, the first partial housing and the first communication tube are connected. The tube can be fixed in a liquid-tight manner, and the second partial housing and the second communication tube can be fixed in a liquid-tight manner. Since the first communication pipe and the second communication pipe are connected by inserting one into the other, it can be made liquid-tight by arranging an annular seal member such as an O-ring between them. . Since the first communication pipe and the second communication pipe have a positional relationship in which one can be inserted into the other, variation in relative positional relationship is allowed. Further, a sealing member such as an O-ring is flexible, and liquid tightness can be secured even if the relative positional relationship between the first communication pipe and the second communication pipe varies within a tolerance range.

液体が第１液体流路から第１連通流路と第２連通流路を経て第２液体流路に流れる順序の場合、第１液体流路は第１部分筐体の壁を貫通して第１開孔に達していることが好ましい。その場合、第１連通管は第１部分筐体の壁に固定するフランジを備えており、そのフランジに第１連通流路が開孔している構造とすることができる。第２連通流路から液体が流れ込む第２液体流路は、第２部分筐体の内部を伸びる内部管で形成することができる。その場合、内部管の端部が第２開孔の内側に位置している位置関係とすることができる。その場合の第２連通管は、第２部分筐体の壁に固定するフランジと、そのフランジから伸びて第２開孔を通過して内部管の端部に挿入される挿入管を備えている。挿入管の内部を第２連通流路が伸びている。
上記の筐体は、液体が漏れ出ると漏電の可能性がある電子機器を収容するのに適している。内部管の外側であるともに筐体の内側の空間に電子機器を収容する。 In the case where the liquid flows from the first liquid channel to the second liquid channel via the first communication channel and the second communication channel, the first liquid channel penetrates the wall of the first partial housing and It is preferable that one hole has been reached. In this case, the first communication pipe may be provided with a flange that is fixed to the wall of the first partial housing, and the first communication channel may be opened in the flange. The second liquid channel into which the liquid flows from the second communication channel can be formed by an internal tube extending inside the second partial housing. In that case, it can be set as the positional relationship from which the edge part of an internal pipe | tube is located inside a 2nd hole. In this case, the second communication pipe includes a flange that is fixed to the wall of the second partial housing, and an insertion pipe that extends from the flange, passes through the second opening, and is inserted into the end of the internal pipe. . A second communication channel extends inside the insertion tube.
The case described above is suitable for housing an electronic device that may leak if liquid leaks out. An electronic device is accommodated in a space inside the casing and outside the inner tube.

上記の場合、筐体内から筐体外に液体が流れ出す部分では、第１液体流路が第１部分筐体の壁を貫通して筐体外部にまで伸びている。第１連通管が損傷しても、第１液体流路から筐体内に液体が漏れ出すことがない。   In the above case, in the portion where the liquid flows from the inside of the housing to the outside of the housing, the first liquid passage extends through the wall of the first partial housing to the outside of the housing. Even if the first communication pipe is damaged, the liquid does not leak from the first liquid channel into the housing.

第１連通管から第２連通管に向けて液体が流れる場合、第１連通管が第２連通管の外側を伸びる第２連通管保護部を備えていることが好ましい。その場合、第２連通管が損傷する以前に第１連通管が損傷する。前記したように、第１連通管が損傷しても液体が筐体内に漏れ出ることがない。第２連通管保護部を設けることで、漏電対策が強化される。   When the liquid flows from the first communication pipe toward the second communication pipe, it is preferable that the first communication pipe includes a second communication pipe protection portion that extends outside the second communication pipe. In this case, the first communication pipe is damaged before the second communication pipe is damaged. As described above, even if the first communication pipe is damaged, the liquid does not leak into the housing. By providing the second communicating pipe protection part, the leakage countermeasure is strengthened.

第２連通管保護部に第２連通管から離反している衝撃受部が形成することも好ましい。
それによって、液体が筐体内に漏れ出すことに対する対策がさらに強化される。 It is also preferable that an impact receiving portion separated from the second communication pipe is formed in the second communication pipe protection portion.
Thereby, the countermeasure against the liquid leaking into the housing is further strengthened.

本明細書で開示する筐体によると、第１部分筐体と第２部分筐体に製造公差を存在していても、連通管に大きなストレスを作用させることなく、第１部分筐体と第１連通管を液密に固定し、第２部分筐体と第２連通管を液密に固定し、第１連通管と第２連通管を液密に接続することができる。   According to the housing disclosed in the present specification, even if there is a manufacturing tolerance between the first partial housing and the second partial housing, the first partial housing and the first partial housing are not subjected to large stress on the communication pipe. It is possible to fix the first communication pipe and the second communication pipe in a liquid-tight manner, fix the second partial housing and the second communication pipe in a liquid-tight manner, and connect the first communication pipe and the second communication pipe in a liquid-tight manner.

第１部分筐体と第２部分筐体を組み合わせて閉じる筐体の全体を示す。The whole housing | casing which closes combining a 1st partial housing | casing and a 2nd partial housing | casing is shown. 第１部分筐体と第１連通管と第２連通管と第２部分筐体の接続関係を示す。The connection relationship of a 1st partial housing | casing, a 1st communicating tube, a 2nd communicating tube, and a 2nd partial housing | casing is shown. 第１部分筐体と第１連通管と第２連通管と第２部分筐体の接続部分の断面図を示す。Sectional drawing of the connection part of a 1st partial housing | casing, a 1st communicating pipe, a 2nd communicating pipe, and a 2nd partial housing | casing is shown. 第１部分筐体と第１連通管と第２連通管と第２部分筐体の接続関係の他の構造を示す。The other structure of the connection relation of the 1st partial case, the 1st communicating pipe, the 2nd communicating tube, and the 2nd partial case is shown.

下記に示す実施例の主要な特徴を列記する。
（特徴１）「第１連通管と第２連通管の接続部の強度」＜「第１連通管と第１部分筐体の接続部の強度」であり、かつ「第１連通管と第２連通管の接続部の強度＜第２連通管と第２部分筐体の接続部の強度」であり、外力が作用したときに、第１連通管と第１部分筐体の接続部で破壊するよりも前に、あるいは第２連通管と第２部分筐体の接続部で破壊するよりも前に、第１連通管と第２連通管の接続部で破壊する。液体が筐体内部に漏れ出ることがない。
（特徴２）筐体から液体が流れだす部分では、液体流路が筐体の壁を貫通して液体流路の一端が壁に露出している。第１連通管が損傷しても液体が筐体内部に漏れ出ることがない。
（特徴３）筐体に液体が流れ込む部分では、第２連通管が筐体の壁を貫通して筐体内部に挿入されている。
（特徴４）第１部分筐体の壁と第１連通管のフランジの間にシール部材が介在している。
（特徴５）第２部分筐体の壁と第２連通管のフランジの間にシール部材が介在している。
（特徴６）第２連通管と内部管の間にシール部材が介在している。
（特徴７）第１連通管と第２連通管の間にシール部材が介在している。
（特徴８）第１連通管を第１部分筐体に固定し、第２連通管を第２部分筐体に固定し、その後に第１部分筐体と第２部分筐体を固定する。すると第１連通管と第２連通管が接続される。
（特徴９）第１連通管の第２連通管側の端部は、第２連通管の内部に挿入される内管と、第２連通管の外部に挿入される外管からなる２重管となっている。
（特徴１０）外管の内側にオーリングが挿入されている。
（特徴１１）外管は、第２連通管に向けて広がっている。外管をガイドにして第２連通管が第１連通管に挿入される。
（特徴１２）外管の端部は第２連通管から離反しており、外力が作用すると第２連通管から離反した外管が外力を受け、第２連通管に外力が作用することを防止する。 The main features of the embodiments shown below are listed.
(Characteristic 1) “Strength of connecting portion between first communicating tube and second communicating tube” <“Strength of connecting portion between first communicating tube and first partial housing”, and “First communicating tube and second connecting tube” The strength of the connection portion of the communication pipe <the strength of the connection portion of the second communication pipe and the second partial housing ”, and when an external force is applied, the connection portion between the first communication pipe and the first partial housing is broken. Before or before breaking at the connection portion between the second communication pipe and the second partial housing, the breakage is caused at the connection portion between the first communication pipe and the second communication pipe. Liquid does not leak into the housing.
(Characteristic 2) In the portion where the liquid flows out from the casing, the liquid flow path penetrates the wall of the casing and one end of the liquid flow path is exposed to the wall. Even if the first communication pipe is damaged, liquid does not leak into the housing.
(Characteristic 3) In the portion where the liquid flows into the casing, the second communication pipe penetrates the wall of the casing and is inserted into the casing.
(Feature 4) A seal member is interposed between the wall of the first partial housing and the flange of the first communication pipe.
(Feature 5) A seal member is interposed between the wall of the second partial housing and the flange of the second communication pipe.
(Feature 6) A seal member is interposed between the second communication pipe and the internal pipe.
(Feature 7) A seal member is interposed between the first communication pipe and the second communication pipe.
(Feature 8) The first communication pipe is fixed to the first partial housing, the second communication pipe is fixed to the second partial housing, and then the first partial housing and the second partial housing are fixed. Then, the first communication pipe and the second communication pipe are connected.
(Feature 9) The end of the first communication pipe on the second communication pipe side is a double pipe comprising an inner pipe inserted into the second communication pipe and an outer pipe inserted outside the second communication pipe It has become.
(Feature 10) An O-ring is inserted inside the outer tube.
(Feature 11) The outer tube extends toward the second communication tube. The second communication pipe is inserted into the first communication pipe using the outer pipe as a guide.
(Feature 12) The end of the outer pipe is separated from the second communication pipe, and when an external force is applied, the outer pipe separated from the second communication pipe receives the external force and prevents the external force from acting on the second communication pipe. To do.

図１は、筐体７０の分解斜視図を示し、第１部分筐体４０と第２部分筐体６０を所定の位置関係に組み合わせて固定することで筐体７０が完成する。
第１部分筐体４０の壁内に第１液体流路が形成されており、その第１液体流路は壁を貫通して開孔４４に連通している。開孔４４から矢印４１に示すように、冷却液が流出す。
第２部分筐体６０内を内部管が伸びている。第２部分筐体６０の壁には開孔６６が形成されており、開孔６６の内側に内部管の開放端部６４ａが臨んでいる。矢印６１に示すように、内部管に冷却液を送りこむ。
開孔４４から流出す冷却液を内部管に送り込むために、連通管を付設する。開孔６６と内部管の開放端部６４ａの間には間隔が存在しており、連通管と開孔６６を連続させるだけでは、冷却液が筐体７０内（正確には、筐体７０の内部であって内部管の外部）に漏れてしまう。連通管は、開孔６６を通過して内部管の端部６６ａに接続する必要がある。それに対して、第１部分筐体４０の開孔４４と第１液体流路の間から冷却液が漏れることはない。連通管は開孔４４に接続すればよい。 FIG. 1 is an exploded perspective view of the housing 70, and the housing 70 is completed by fixing the first partial housing 40 and the second partial housing 60 in combination with a predetermined positional relationship.
A first liquid channel is formed in the wall of the first partial housing 40, and the first liquid channel passes through the wall and communicates with the opening 44. As shown by an arrow 41 from the opening 44, the coolant flows out.
An inner pipe extends in the second partial housing 60. An opening 66 is formed in the wall of the second partial housing 60, and an open end portion 64 a of the inner tube faces the inside of the opening 66. As shown by the arrow 61, the cooling liquid is fed into the inner pipe.
In order to send the coolant flowing out from the opening 44 to the inner pipe, a communication pipe is provided. There is a gap between the opening 66 and the open end 64a of the inner tube, and the coolant can be transferred into the casing 70 (to be precise, the casing 70 only by connecting the communicating pipe and the opening 66 continuously. It leaks inside (outside the inner tube). The communication pipe needs to pass through the opening 66 and be connected to the end 66a of the inner pipe. On the other hand, the coolant does not leak from between the opening 44 of the first partial housing 40 and the first liquid flow path. The communication pipe may be connected to the opening 44.

図２は、第１部分筐体４０と第１連通管１０と第２連通管２０と第２部分筐体６０の接続関係を示し、図３は、接続後の断面を示している。
第１部分筐体４０の壁内に第１液体流路４２が形成されており、第１液体流路４２は第１部分筐体４０の壁４６を貫通して開孔４４に連通している。
第２部分筐体６０の内部を内部管６４が伸びており、内部管６４の内側が第２液体流路６２となる。内部管６４の外側（筐体７０の内側）に電子機器が搭載されている。電子機器は動作すると発熱し、第１液体流路４２と第２液体流路６２を循環する冷却液で冷却される。内部管６４の端部６４ａは、第２部分筐体６０の壁６８に達していない。内部管６４の端部６４ａと壁６８の間には間隙があり、連通管を開孔６６に接続するだけでは、その間隙から液体が漏れてしまう。連通管は、開孔６６を通過して内部管６４の端部６４ａに接続する必要がある。 FIG. 2 shows a connection relationship between the first partial housing 40, the first communication pipe 10, the second communication pipe 20, and the second partial housing 60, and FIG. 3 shows a cross section after the connection.
A first liquid channel 42 is formed in the wall of the first partial housing 40, and the first liquid channel 42 passes through the wall 46 of the first partial housing 40 and communicates with the opening 44. .
An inner tube 64 extends inside the second partial housing 60, and the inner side of the inner tube 64 serves as a second liquid channel 62. An electronic device is mounted outside the inner tube 64 (inside the housing 70). The electronic device generates heat when it operates, and is cooled by the coolant circulating through the first liquid channel 42 and the second liquid channel 62. The end portion 64 a of the inner pipe 64 does not reach the wall 68 of the second partial housing 60. There is a gap between the end portion 64 a of the inner pipe 64 and the wall 68, and the liquid leaks from the gap only by connecting the communication pipe to the opening 66. The communication pipe needs to pass through the opening 66 and be connected to the end portion 64 a of the inner pipe 64.

図２に示すように、連通管は、第１連通管１０と第２連通管２０で構成される。第１連通管１０は、横管１５と縦管１６と接続部１７とフランジ１１を備えている。図３に示すように、フランジ１１と横管１５と縦管１６と接続部１７の内側を、第１連通流路１９が貫通している。フランジ１１には第１連通流路１９の一端が開孔している。
フランジ１１は、第１部分筐体４０の開孔４４の周囲に位置している壁４６に密着する形状であり、フランジ１１を壁４６に密着させるボルトが通過するボルト孔１２，１４を備えている。第１部分筐体４０の図示しない断面に、ボルトがねじ込まれるねじ孔が形成されている。ボルトによってフランジ１１を壁４６に密着させると、開孔４４と開孔１３が一致し、第１液体流路４２と第１連通流路１９が連通する。図３に示すように、フランジ１１と壁４６の間には、開孔４４，１３を一巡するオーリング４が圧縮状態で介在しており、フランジ１１と壁４６間から液体が漏れでることはない。 As shown in FIG. 2, the communication pipe includes a first communication pipe 10 and a second communication pipe 20. The first communication pipe 10 includes a horizontal pipe 15, a vertical pipe 16, a connection portion 17, and a flange 11. As shown in FIG. 3, a first communication channel 19 passes through the inside of the flange 11, the horizontal tube 15, the vertical tube 16, and the connection portion 17. One end of the first communication channel 19 is opened in the flange 11.
The flange 11 has a shape that is in close contact with a wall 46 that is positioned around the opening 44 of the first partial housing 40, and includes bolt holes 12 and 14 through which bolts that closely attach the flange 11 to the wall 46 pass. Yes. A screw hole into which a bolt is screwed is formed in a cross section (not shown) of the first partial housing 40. When the flange 11 is brought into close contact with the wall 46 by a bolt, the opening 44 and the opening 13 coincide with each other, and the first liquid channel 42 and the first communication channel 19 communicate with each other. As shown in FIG. 3, between the flange 11 and the wall 46, the O-ring 4 that makes a round of the openings 44 and 13 is interposed in a compressed state, and liquid leaks between the flange 11 and the wall 46. Absent.

第２連通管２０は、縦管２６と横管２５とフランジ２２と挿入管２３を備えている。図３に示すように、縦管２６と横管２５とフランジ２２と挿入管２３の内側を、第２連通流路２７が貫通している。挿入管２３の先端に第２連通流路２７の一端が開孔している。
フランジ２２は、第２部分筐体６０の開孔６６の周囲に位置している壁６８に密着する形状であり、フランジ２２を壁６８に密着させるボルトが通過するボルト孔２１を備えている。第２部分筐体４０の壁６８にボルトがねじ込まれるねじ孔６９が形成されている。ボルトによってフランジ２２を壁６８に密着させると、内部管６４の先端６４ａが挿入管２３内に挿入される。図３に示すように、挿入管２３の内周面と内部管６４の外周面の間に環状のオーリング８が圧縮状態で介在し、挿入管２３の内周面と内部管６４の外周面の間から液体が漏れでることはない。また、フランジ２２と壁６８の間には、開孔６６を一巡するオーリング４が圧縮状態で介在しており、フランジ２２と壁６８間を気密に封じている。筐体７０は、大気から密封される。 The second communication pipe 20 includes a vertical pipe 26, a horizontal pipe 25, a flange 22, and an insertion pipe 23. As shown in FIG. 3, a second communication channel 27 passes through the inside of the vertical tube 26, the horizontal tube 25, the flange 22, and the insertion tube 23. One end of the second communication channel 27 is opened at the tip of the insertion tube 23.
The flange 22 has a shape that is in close contact with a wall 68 positioned around the opening 66 of the second partial housing 60, and includes a bolt hole 21 through which a bolt that makes the flange 22 adhere to the wall 68 passes. A screw hole 69 into which a bolt is screwed is formed in the wall 68 of the second partial housing 40. When the flange 22 is brought into close contact with the wall 68 with a bolt, the distal end 64 a of the inner tube 64 is inserted into the insertion tube 23. As shown in FIG. 3, an annular O-ring 8 is interposed in a compressed state between the inner peripheral surface of the insertion tube 23 and the outer peripheral surface of the inner tube 64, and the inner peripheral surface of the insertion tube 23 and the outer peripheral surface of the inner tube 64. Liquid will not leak from between. Further, between the flange 22 and the wall 68, the O-ring 4 that makes a round of the opening 66 is interposed in a compressed state, and the space between the flange 22 and the wall 68 is hermetically sealed. The housing 70 is sealed from the atmosphere.

実際の組み付け時には、第１部分筐体４０に第１連通管１０を固定し、第２部分筐体６０に第２連通管２０を固定し、その後に第１部分筐体４０と第２部分筐体６０を組み合わせる。
図３に示すように、第１連通管１０の接続部１７は、第２連通管２０の内部に入り込む内管１７ｂと第２連通管の外部を覆う外管１７ａを備えており、２重管となっている。第２連通管２０を第１連通管１０に向けて下ろすと、第２連通管２０の下端は、内管１７ｂと外管１７ａ間の管状の間隙に入り込む。この状態では、外管１７ａの内周面と第２連通管２０の外周面の間に環状のオーリング６が圧縮状態で介在し、第１連通管１０と第２連通管２０の間から液体が漏れでることはない。 At the time of actual assembly, the first communication pipe 10 is fixed to the first partial housing 40, the second communication pipe 20 is fixed to the second partial housing 60, and then the first partial housing 40 and the second partial housing are fixed. Combine body 60.
As shown in FIG. 3, the connecting portion 17 of the first communication pipe 10 includes an inner pipe 17b that enters the second communication pipe 20 and an outer pipe 17a that covers the outside of the second communication pipe, and is a double pipe. It has become. When the second communication pipe 20 is lowered toward the first communication pipe 10, the lower end of the second communication pipe 20 enters the tubular gap between the inner pipe 17b and the outer pipe 17a. In this state, the annular O-ring 6 is interposed in a compressed state between the inner peripheral surface of the outer tube 17 a and the outer peripheral surface of the second communication tube 20, and liquid is supplied from between the first communication tube 10 and the second communication tube 20. Will not leak.

第１連通管１０と第２連通管２０の位置関係は、両者が挿入し合えばよく、例えば両者の周方向の角度関係には制約されないし、両者の挿入深さには一定の許容幅が存在する。また、オーリング６は柔軟性を有することから、第１連通管１０と第２連通管２０の軸心が完全に一致しなくても、第１連通管１０に第２連通管２０を挿入し、両者間をオーリング６で液密に接続することができる。
第１部分筐体４０と第２部分筐体６０と第１連通管１０と第２連通管２０に製造公差が存在していても、その公差を、前記した許容性と柔軟性で吸収することができる。連通管を第１連通管１０と第２連通管２０に分割し、両者を挿入して接続するとともにオーリング６でシールする構造を用いると、第１部分筐体４０と第１連通管１０を液密に固定し、第２部分筐体６０と第２連通管２０を液密に固定し、第１連通管１０と第２連通管２０を液密に接続することができ、しかも各部材に過剰なストレスをかけることがない。 The positional relationship between the first communication pipe 10 and the second communication pipe 20 only needs to be inserted together. For example, the angular relationship between the two is not limited, and the insertion depth of both has a certain allowable width. Exists. In addition, since the O-ring 6 has flexibility, the second communication pipe 20 is inserted into the first communication pipe 10 even if the axial centers of the first communication pipe 10 and the second communication pipe 20 do not completely coincide with each other. The two can be liquid-tightly connected by an O-ring 6.
Even if manufacturing tolerances exist in the first partial housing 40, the second partial housing 60, the first communication pipe 10, and the second communication pipe 20, the tolerance is absorbed by the above-described tolerance and flexibility. Can do. When the communication pipe is divided into the first communication pipe 10 and the second communication pipe 20, both are inserted and connected, and sealed by the O-ring 6, the first partial housing 40 and the first communication pipe 10 are connected. The second partial housing 60 and the second communication pipe 20 can be fixed in a liquid-tight manner, and the first communication pipe 10 and the second communication pipe 20 can be connected in a liquid-tight manner. There is no excessive stress.

外管１７ａは、第２連通管２０に向けて大径化しており、上端では第２連通管２０から離反している。その離反した上端１８は衝撃受部として作用する。
上記の実施例では、次のメリットが得られる。
（１）第１部分筐体４０と第１連通管１０を液密に固定し、第２部分筐体６０と第２連通管２０を液密に固定し、第１連通管１０と第２連通管２０を液密に接続することができ、しかも各部材に過剰なストレスをかけることがない。
（２）筐体７０に外力が作用した場合、外力は最初に衝撃受部１８に作用する。衝撃受部１８は第２連通管２０から離反しており、外力から第２連通管２０を保護する。第２連通管２０が保護されるので、筐体７０内に液が漏れることがない。
（３）筐体７０に大きな外力が作用した場合、第１部分筐体４０と第１連通管１０の固定部分、あるいは、第２部分筐体６０と第２連通管２０の固定部分で損傷するよりも前に、第１連通管１０と第２連通管２０の接続部分で損傷する。筐体７０内に液が漏れることがない。
（４）筐体７０にさらに大きな外力が作用した場合、第２連通管２０が損傷するよりも前に、第１連通管１０が損傷する。第１連通管１０が損傷しても、第２連通管２０が損傷しないかぎり、筐体７０内に液が漏れることがない。外管１７ａは、第２連通管２０を保護する保護部でもある。
（５）外管１７ａはテーパ形状となっており、第２連通管２０を下降させると第２連通管２０の位置を第１連通管１０に対して位置決めするガイドとして機能する。 The outer pipe 17a has a larger diameter toward the second communication pipe 20 and is separated from the second communication pipe 20 at the upper end. The separated upper end 18 acts as an impact receiving portion.
In the above embodiment, the following merits are obtained.
(1) The first partial housing 40 and the first communication pipe 10 are liquid-tightly fixed, the second partial housing 60 and the second communication pipe 20 are liquid-tightly fixed, and the first communication pipe 10 and the second communication pipe are connected. The pipe 20 can be connected in a liquid-tight manner, and excessive stress is not applied to each member.
(2) When an external force is applied to the housing 70, the external force first acts on the impact receiving portion 18. The impact receiving portion 18 is separated from the second communication pipe 20 and protects the second communication pipe 20 from external force. Since the second communication pipe 20 is protected, no liquid leaks into the housing 70.
(3) When a large external force is applied to the housing 70, the first partial housing 40 and the first communication pipe 10 are fixed to each other, or the second partial housing 60 and the second communication pipe 20 are fixed to each other. Before that, the connection portion between the first communication pipe 10 and the second communication pipe 20 is damaged. Liquid does not leak into the housing 70.
(4) When a larger external force is applied to the housing 70, the first communication pipe 10 is damaged before the second communication pipe 20 is damaged. Even if the first communication pipe 10 is damaged, the liquid does not leak into the housing 70 unless the second communication pipe 20 is damaged. The outer tube 17 a is also a protection unit that protects the second communication tube 20.
(5) The outer tube 17a has a tapered shape, and functions as a guide for positioning the second communication tube 20 with respect to the first communication tube 10 when the second communication tube 20 is lowered.

上記実施例では、第１連通管の上端に、第２連通管を受け入れる２重管構造を形成している。これに代えて、第２連通管の下端に、第１連通管を受け入れる２重管構造を形成していてもよい。また上記実施例では、筐体から遠い側の面に衝撃受部を設けている。これに代えて、筐体から近い側の面に衝撃受部を設けてもよいし、両方に衝撃受け部設けてもよい。さらに、第１連通管と第２連通管の間を第３連通管で接続するようにしてもよい。   In the said Example, the double pipe structure which receives a 2nd communicating pipe is formed in the upper end of a 1st communicating pipe. Instead, a double pipe structure that receives the first communication pipe may be formed at the lower end of the second communication pipe. Moreover, in the said Example, the impact receiving part is provided in the surface far from a housing | casing. Instead of this, an impact receiving portion may be provided on a surface closer to the housing, or an impact receiving portion may be provided on both. Further, the third communication pipe may be connected between the first communication pipe and the second communication pipe.

以上、本発明の具体例を詳細に説明したが、これらは例示にすぎず、特許請求の範囲を限定するものではない。特許請求の範囲に記載の技術には、以上に例示した具体例を様々に変形、変更したものが含まれる。
また、本明細書または図面に説明した技術要素は、単独であるいは各種の組合せによって技術的有用性を発揮するものであり、出願時請求項記載の組合せに限定されるものではない。また、本明細書または図面に例示した技術は複数目的を同時に達成するものであり、そのうちの一つの目的を達成すること自体で技術的有用性を持つものである。 Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.
The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

２，４，６，８：管状のシール部材（実施例ではオーリング）
１０：第１連通管
１１：フランジ
１２：ボルト通過孔
１３：開孔
１４：ボルト通過孔
１５：横管
１６：縦管
１７：接続部
１７ａ：外管
１７ｂ：内管
１８：衝撃受部
１９：第１連通流路
２０：第２連通管
２１：ボルト通過孔
２２：フランジ
２３：挿入管
２４：開孔
２５：横管
２６：縦管
２７：第２連通流路
４０：第１部分筐体
４２：第１液体流路
４４：開孔
４６：壁
６０：第２部分筐体
６２：第２液体流路
６４：内部管
６６：開孔
６８：壁
６９：ねじ孔
７０：筐体
７２：分離線 2, 4, 6, 8: Tubular seal member (O-ring in the embodiment)
10: 1st communicating pipe 11: Flange 12: Bolt passage hole 13: Opening hole 14: Bolt passage hole 15: Horizontal pipe 16: Vertical pipe 17: Connection part 17a: Outer pipe 17b: Inner pipe 18: Impact receiving part 19: First communication flow path 20: Second communication pipe 21: Bolt passage hole 22: Flange 23: Insertion pipe 24: Opening hole 25: Horizontal pipe 26: Vertical pipe 27: Second communication flow path 40: First partial housing 42 : First liquid flow path 44: opening 46: wall 60: second partial housing 62: second liquid flow path 64: inner tube 66: opening 68: wall 69: screw hole 70: housing 72: separation line

Claims (4)

第１部分筐体と第２部分筐体と第１連通管と第２連通管を備えており、
第１部分筐体の内部に第１液体流路が形成されており、第１部分筐体を形成する壁に第１液体流路の端部に臨む第１開孔が形成されており、
第２部分筐体の内部に第２液体流路が形成されており、第２部分筐体を形成する壁に第２液体流路の端部に臨む第２開孔が形成されており、
第１連通管の内部に第１連通流路が形成されており、第１連通管を第１部分筐体に固定すると第１開孔を介して第１連通流路と第１液体流路が連通し、
第２連通管の内部に第２連通流路が形成されており、第２連通管を第２部分筐体に固定すると第２開孔を介して第２連通流路と第２液体流路が連通し、
第１部分筐体と第２部分筐体を組み合わせて筐体を閉じると、第１連通管と第２連通管のうちの一方が他方に挿入され、第１連通流路と第２連通流路が環状のシール部材によって液密に接続されることを特徴とする筐体。 A first partial housing, a second partial housing, a first communication pipe and a second communication pipe;
A first liquid channel is formed inside the first partial housing, and a first opening facing the end of the first liquid channel is formed in the wall forming the first partial housing,
A second liquid channel is formed inside the second partial housing, and a second opening facing the end of the second liquid channel is formed in the wall forming the second partial housing,
A first communication channel is formed inside the first communication tube. When the first communication tube is fixed to the first partial housing, the first communication channel and the first liquid channel are connected via the first opening. Communication,
A second communication channel is formed inside the second communication tube. When the second communication tube is fixed to the second partial housing, the second communication channel and the second liquid channel are connected via the second opening. Communication,
When the first partial housing and the second partial housing are combined to close the housing, one of the first communication tube and the second communication tube is inserted into the other, and the first communication channel and the second communication channel are inserted. Is a liquid-tight connection by an annular seal member. 第１液体流路は第１部分筐体の壁を貫通して第１開孔に達しており、
第２液体流路は第２部分筐体の内部を伸びる内部管で形成されており、その内部管の端部が第２開孔の内側に位置しており、
第１連通管は第１部分筐体の壁に固定するフランジを備えており、そのフランジに第１連通流路が開孔しており、
第２連通管は第２部分筐体の壁に固定するフランジと、そのフランジから伸びて第２開孔を通過して内部管の端部に挿入されるとともに内部を第２連通流路が伸びている挿入管を備えており、
液体が第１液体流路から第１連通流路と第２連通流路を経て第２液体流路に流れ、
内部管の外側であって筐体の内側の空間に電子機器が収容されていることを特徴とする請求項１の筐体。 The first liquid channel passes through the wall of the first partial housing and reaches the first opening,
The second liquid channel is formed by an internal tube extending inside the second partial housing, and an end of the internal tube is located inside the second opening,
The first communication pipe includes a flange that is fixed to the wall of the first partial housing, and the first communication flow path is opened in the flange.
The second communication pipe extends from the flange that is fixed to the wall of the second partial housing, passes through the second opening, is inserted into the end of the inner pipe, and the second communication flow path extends through the inside. Has an insertion tube that is
The liquid flows from the first liquid channel to the second liquid channel via the first communication channel and the second communication channel,
2. The casing according to claim 1, wherein an electronic device is accommodated in a space outside the inner tube and inside the casing. 第１連通管が第２連通管の外側を伸びる第２連通管保護部を備えていることを特徴とする請求項２の筐体。   The housing according to claim 2, wherein the first communication pipe includes a second communication pipe protection portion extending outside the second communication pipe. 第２連通管保護部に第２連通管から離反している衝撃受部が形成されていることを特徴とする請求項３の筐体。   The housing according to claim 3, wherein an impact receiving portion separated from the second communication pipe is formed in the second communication pipe protection portion.
JP2012197429A 2012-09-07 2012-09-07 Housing with liquid passage formed therein Pending JP2014053473A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015216295A (en) * 2014-05-13 2015-12-03 トヨタ自動車株式会社 Electronic apparatus
JP2016039637A (en) * 2014-08-05 2016-03-22 株式会社デンソー Electric power conversion system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015216295A (en) * 2014-05-13 2015-12-03 トヨタ自動車株式会社 Electronic apparatus
JP2016039637A (en) * 2014-08-05 2016-03-22 株式会社デンソー Electric power conversion system

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