JPH0322954Y2 - - Google Patents
Info
- Publication number
- JPH0322954Y2 JPH0322954Y2 JP15100985U JP15100985U JPH0322954Y2 JP H0322954 Y2 JPH0322954 Y2 JP H0322954Y2 JP 15100985 U JP15100985 U JP 15100985U JP 15100985 U JP15100985 U JP 15100985U JP H0322954 Y2 JPH0322954 Y2 JP H0322954Y2
- Authority
- JP
- Japan
- Prior art keywords
- box
- chamber
- electrical
- upper limit
- operating temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000005192 partition Methods 0.000 claims description 14
- 238000009423 ventilation Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Casings For Electric Apparatus (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本案は冷凍機等に使用される電装箱に係り、特
に、電動フアンにより電装箱内を通風させ該箱内
に収納された電気部品を冷却する構造の電装箱に
関する。[Detailed description of the invention] (a) Industrial application field This invention relates to an electrical box used in a refrigerator, etc., and in particular, uses an electric fan to ventilate the electrical box to remove electrical components stored in the box. This invention relates to an electrical box with a cooling structure.
(ロ) 従来の技術
従来、この種の電装箱は、実公昭57−10381号
公報等に記載され第３図に示すように、通風口３
１，３２を有する箱体３３と、この箱体内に収納
されたパワートランジスタ３４、パワーダイオー
ド３５、プリント基板３６及びリアクタ３７等の
電気部品と、前記箱体３３の通風口３１の近傍に
装着された電動フアン３８とから構成されてい
る。そして、前記電動フアン３８を運転させるこ
とにより、箱体３３内を同図中矢印で示すように
通風させ、該箱内の電気部品を冷却するものであ
る。(b) Conventional technology Conventionally, this type of electrical equipment box has a ventilation opening 3, as described in Publication of Utility Model Publication No. 10381/1981, etc., and as shown in Fig. 3.
1 and 32, electric components such as a power transistor 34, a power diode 35, a printed circuit board 36, and a reactor 37 housed in the box, and a box 33 mounted near the ventilation opening 31 of the box 33. It is composed of an electric fan 38. By operating the electric fan 38, the inside of the box 33 is ventilated as indicated by the arrow in the figure, thereby cooling the electrical components inside the box.
(ハ) 考案が解決しようとする問題点
しかしながら上記の構成によると箱体３３内に
は夫々の使用温度範囲が異なる電気部品が混在し
て一緒に収納されていること、及び該箱体内の温
度は電気部品の発熱によつて一様に上昇している
ことから、箱体３３内の温度が、前記電気部品の
うち使用温度範囲の上限温度（以下上限使用温度
という）が低い部品、例えばパワートランジスタ
３４やパワーダイオード３５等の上限使用温度を
越えてしまうという問題があつた。(c) Problems to be solved by the invention However, according to the above configuration, electrical components having different operating temperature ranges are mixed and housed together in the box body 33, and the temperature inside the box body is uniformly rising due to the heat generated by the electrical components, so the temperature inside the box 33 is higher than that of the electrical components whose upper limit temperature in the operating temperature range (hereinafter referred to as upper limit operating temperature) is lower, such as the power supply. There was a problem in that the upper limit operating temperature of the transistor 34, power diode 35, etc. was exceeded.
本案は斯る点に鑑みなされたもので、１個の電
動フアンで電装箱内の温度が電気部品の上限使用
温度以下となるように冷却することを目的とす
る。 This proposal was developed in view of this point, and the purpose is to cool the inside of the electrical equipment box using one electric fan so that the temperature within the electrical equipment box is below the upper limit operating temperature of the electrical components.
(ニ) 問題点を解決するための手段
本案は、電動フアンにより電装箱内を通風させ
該箱内に収納された電気部品を冷却する構造の電
装箱において、前記電装箱を、箱体と、この箱体
内を複数の室に区分する仕切壁と、前記複数の室
に夫々上限使用温度が異なる部品別に収納された
電気部品と、この電気部品を冷却する電動フアン
とで構成し、前記仕切壁に各室を連通する連通孔
を設け、前記複数の室のうち、少なくとも２個の
室を分流して通風させると共に分流して通風され
る室のうち上限使用温度の低い部品の収納された
室への入口となる仕切壁の連通孔を、上限使用温
度の高い部品の収納された室への入口となる仕切
壁の連通孔より大きく形成したものである。(d) Means for solving the problem This proposal provides an electrical box having a structure in which an electric fan is used to ventilate the electrical box and cool the electrical components housed in the box. The box body is composed of a partition wall that divides the inside of the box into a plurality of chambers, electrical components each having a different upper limit operating temperature stored in each of the plurality of chambers, and an electric fan that cools the electrical components. A communication hole is provided to communicate each chamber, and among the plurality of chambers, at least two chambers are divided for ventilation, and among the chambers to be divided and ventilated, components having a lower upper limit operating temperature are stored. The communication hole in the partition wall that serves as the entrance to the chamber is formed larger than the communication hole in the partition wall that serves as the entrance to the chamber in which components with a high upper limit service temperature are stored.
(ホ) 作用
本案の電装箱は上記のように構成することによ
り、複数の室のうち、上限使用温度の低い部品の
収納された室により多くの冷却作用を与える一
方、上限使用温度の高い部品の収納された室にも
該室内の電気部品の上限使用温度に相応した冷却
作用を与えることができ、１個の電動フアンで電
装箱内の温度が電気部品の夫々の上限使用温度以
下となるように合理的に冷却したものである。(e) Effect By configuring the electrical box of the present invention as described above, out of the plurality of chambers, more cooling action is given to the chamber in which components with a lower upper limit of operating temperature are stored, while parts with a higher upper limit of operating temperature are stored. It is possible to provide a cooling effect commensurate with the upper limit operating temperature of the electrical components in the room where the electric components are housed, and with one electric fan, the temperature inside the electrical equipment box can be kept below the upper limit operating temperature of each electrical component. It is reasonably cooled.
(ヘ) 実施例 以下本案の実施例を図面に基づいて説明する。(f) Examples Examples of the present invention will be described below based on the drawings.
１は電装箱である。この電装箱は、通風口２，
３，４を有する箱体５と、この箱体内を４個の室
６，７，８，９に区分する仕切板１０，１１，１
２，１３と、この仕切板のうち３枚の仕切板１
０，１１，１２の夫々に穿設された連通孔１４，
１５，１６と、前記第１の室６に収納されたパワ
ートランジスタ１７、パワーダイオード１８、及
びこれらの放熱板１９と、第２の室７に収納され
たリアクタ２０及びノイズフイルタ２１と、第３
の室８に収納されたプリント基板２２，２３と、
第４の室９に収納されたマグネツトスイツチ２
４、サーマルリレー２５、及びタイマー２６と、
前記箱体５の通風口２の近傍の外壁に装着された
電動フアン２７とから構成されている。 1 is an electrical equipment box. This electrical box has ventilation ports 2,
3, 4, and partition plates 10, 11, 1 that divide the box into four chambers 6, 7, 8, 9.
2, 13, and three of these partition plates 1
Communication holes 14 bored in each of 0, 11, and 12,
15, 16, a power transistor 17, a power diode 18, and a heat sink 19 for these housed in the first chamber 6, a reactor 20 and a noise filter 21 housed in the second chamber 7, and a third
printed circuit boards 22 and 23 housed in chamber 8;
Magnetic switch 2 housed in fourth chamber 9
4, a thermal relay 25 and a timer 26,
The electric fan 27 is mounted on the outer wall of the box body 5 near the ventilation opening 2.
このように構成された電装箱１は、電動フアン
２７を運転させることにより、第１図及び第２図
中矢印で示すように順路で通風されている。すな
わち、電動フアン２７が運転すると該フアンの吸
引力により、箱体５外から通風口２を介して第１
の室６へ風が流入する。ここで、第１の室６には
電装箱１内に収納される電気部品のうちで最も上
限使用温度の低い部品であるパワートランジスタ
１７やパワーダイオード１８が収納されており、
該室内に流入した風のほとんどはこれらの部品の
冷却にあてられている。次に第１の室６の部品を
冷却して温度が稍上昇した風は連通孔１４，１５
を夫々介して第２の室７と第３の室８とに分流し
て流れる。ここで、連通孔１５の面積は連通孔１
４の面積より大きく形成されていることから、連
通孔１４を介して第２の室７へ流入する風量は連
通孔１５を介して第３の室８へ流入する風量より
少くなつている。そして、第２の室７へ流入した
風は、箱体５内の電気部品のうちで最も上限使用
温度の高い部品であるリアクタ２０やノイズフイ
ルタ２１を冷却した後、通風口３から箱体５外へ
流出される。このとき、第２の室７内に収納され
たリアクタ２０等の部品は第１の室６内に収納さ
れたパワートランジスタ１７等の部品より上限使
用温度が高いため、第１の室６で稍温度が上昇し
た風でも上限使用温度以下となるように冷却され
る。一方、第１の室６から連通孔１５を介して第
３の室８へ流入した風は、その上限使用温度がパ
ワートランジスタ１７より高くリアクタ２０より
低い部品であるプリント基板２２，２３を冷却し
た後、連通孔１６を介して第４の室９へ流出され
る。ここで、第３の室８へ流入する風量は上述し
たように第２の室７へ流入する風量より多くなつ
ているため、第３の室８に収納されているプリン
ト基板２２，２３の上限使用温度が第２の室７に
収納されているリアクタ２０等の上限使用温度よ
り低くても該第２の室内の部品はその上限使用温
度以下に冷却される。そして、第３の室８から連
通孔１６を介して第４の室９へ流入した風は、マ
グネツトスイツチ２４、サーマルリレー２５及び
タイマー２６を冷却した後、通風口４を介して箱
体５外へ流出される。 The electrical equipment box 1 configured as described above is ventilated in a normal direction as shown by the arrows in FIGS. 1 and 2 by operating the electric fan 27. That is, when the electric fan 27 operates, the suction force of the fan causes the first air to flow from outside the box body 5 through the ventilation port 2.
Wind flows into the chamber 6. Here, the first chamber 6 stores a power transistor 17 and a power diode 18, which are components with the lowest upper limit operating temperature among the electrical components stored in the electrical component box 1.
Most of the air flowing into the room is used to cool these parts. Next, the air whose temperature has risen slightly by cooling the parts in the first chamber 6 is passed through the communication holes 14 and 15.
The water is divided into the second chamber 7 and the third chamber 8 through the two chambers 7 and 8, respectively. Here, the area of the communication hole 15 is the area of the communication hole 1
4, the amount of air flowing into the second chamber 7 through the communication hole 14 is smaller than the amount of air flowing into the third chamber 8 through the communication hole 15. The air flowing into the second chamber 7 cools the reactor 20 and the noise filter 21, which are the components with the highest upper limit operating temperature among the electrical components inside the box 5, and then flows through the ventilation opening 3 into the box 5. It is leaked outside. At this time, parts such as the reactor 20 housed in the second chamber 7 have a higher upper limit operating temperature than parts such as the power transistor 17 housed in the first chamber 6, so there is a slight problem in the first chamber 6. Even if the temperature of the air has increased, it is cooled to below the upper limit operating temperature. On the other hand, the air flowing into the third chamber 8 from the first chamber 6 through the communication hole 15 cooled the printed circuit boards 22 and 23, which are components whose upper limit operating temperature is higher than the power transistor 17 and lower than the reactor 20. Thereafter, it flows out into the fourth chamber 9 through the communication hole 16. Here, since the amount of air flowing into the third chamber 8 is larger than the amount of air flowing into the second chamber 7 as described above, the upper limit of the printed circuit boards 22 and 23 stored in the third chamber 8 is Even if the operating temperature is lower than the upper limit operating temperature of the reactor 20 etc. housed in the second chamber 7, the components in the second chamber 7 are cooled to below the upper limit operating temperature. The wind flowing into the fourth chamber 9 from the third chamber 8 through the communication hole 16 cools the magnetic switch 24, the thermal relay 25, and the timer 26, and then flows through the ventilation hole 4 into the box body 5. It is leaked outside.
すなわち、本実施例では、電装箱１に収納され
る電気部品のうち、上限使用温度が最も低い部品
であるパワートランジスタ１７にフアン２７の全
風量を供給して冷却した後、この風を、上限使用
温度が異なる部品別に分流して供給し、しかも、
上限使用温度のより低い部品例えばプリント基板
２２，２３により多くの風量を与えるようにし
て、１個の電動フアン２７でもすべての電気部品
が夫々の上限使用温度を越えないように合理的に
冷却できるようにしたものである。 That is, in this embodiment, after cooling the power transistor 17, which is the component with the lowest upper limit operating temperature among the electrical components housed in the electrical component box 1, by supplying the entire amount of air from the fan 27, this air is transferred to the upper limit temperature. Separately supplied to parts with different operating temperatures, and
By giving more air volume to components with lower upper limit operating temperatures, such as the printed circuit boards 22 and 23, even one electric fan 27 can rationally cool all electrical components so that they do not exceed their respective upper limit operating temperatures. This is how it was done.
尚、本実施例では連通孔１４，１５の断面積を
変えるものについて説明したが、連通孔１４，１
５の断面積を同一とし、かつ、一方の連通孔１５
の前に放熱板１９等の電気部品を配置して通風を
遮り、連通孔１５を通る実質的な風量を減らすこ
とにより、夫々の連通孔１４，１５を通る実質的
な通路断面積を変えても本実施例と同様な効果を
奏し何等本案を逸脱するものではない。 Incidentally, in this embodiment, the case where the cross-sectional area of the communication holes 14 and 15 is changed has been described, but the communication holes 14 and 1
5 have the same cross-sectional area, and one communicating hole 15
By arranging an electrical component such as a heat sink 19 in front of the radiator plate 19 to block the ventilation and reduce the substantial amount of air passing through the communication hole 15, the substantial cross-sectional area of the passage passing through the respective communication holes 14 and 15 can be changed. This embodiment also produces the same effects as the present embodiment and does not deviate from the main idea in any way.
(ト) 考案の効果
以上のように本案は電動フアンにより電装箱内
を通風させ該箱内に収納された電気部品を冷却す
る構造の電装箱において、前記電装箱を、箱体
と、この箱体内を複数の室に区分する仕切壁と、
前記複数の室に夫々上限使用温度が異なる部品別
に収納された電気部品と、この電気部品を冷却す
る電動フアンとで構成し、前記仕切壁に各室を連
通する連通孔を設け、前記複数の室のうち、少な
くとも２個の室を分流して通風させると共に分流
して通風される室のうち上限使用温度の低い部品
の収納された室への入口となる仕切壁の連通孔
を、上限使用温度の高い部品の収納された室への
入口となる仕切壁の連通孔より大きく形成したも
のであるから、前記電装箱内のすべての電気部品
に対し、夫々の上限使用温度に相応した冷却作用
を与えることができ、１個の電動フアンでも電装
箱内の各室の温度が各部品の上限使用温度を越え
たりしないように合理的に冷却することができ
る。(G) Effects of the invention As described above, this invention provides an electrical equipment box with a structure in which an electric fan is used to ventilate the electrical equipment box and cool the electrical components stored in the box. A partition wall that divides the body into multiple chambers,
The plurality of chambers are composed of electrical components stored in separate parts each having a different upper limit operating temperature, and an electric fan for cooling the electrical components, and a communication hole is provided in the partition wall to communicate each chamber, and the plurality of At least two of the chambers are divided for ventilation, and a communication hole in the partition wall that serves as an entrance to a chamber containing components with a lower upper limit of operating temperature is set to the upper limit of use. Since it is formed larger than the communication hole in the partition wall that serves as the entrance to the chamber where high-temperature components are stored, it provides a cooling effect for all electrical components in the electrical box, corresponding to their respective upper limit operating temperatures. Even with one electric fan, it is possible to rationally cool each room in the electrical equipment box so that the temperature does not exceed the upper limit operating temperature of each part.
第１図及び第２図は夫々本案の一実施例を示
し、第１図は箱体内における風の流れを示す電装
箱の説明図、第２図は風の流れと共に電気部品の
配置を示す電装箱の説明図、第３図は従来例を示
す電装箱の説明図である。
１……電装箱、２，３，４……通風口、５……
箱体、６……第１の室、７……第２の室、８……
第３の室、９……第４の室、１０，１１，１２，
１３……仕切板、１４，１５，１６……連通孔、
２７……電動フアン。
Figures 1 and 2 each show an embodiment of the present invention. Figure 1 is an explanatory diagram of the electrical equipment box showing the flow of air inside the box, and Figure 2 is an illustration of the electrical equipment box showing the flow of air and the arrangement of electrical components. FIG. 3 is an explanatory diagram of an electrical equipment box showing a conventional example. 1... Electrical box, 2, 3, 4... Ventilation opening, 5...
Box body, 6...first chamber, 7...second chamber, 8...
3rd house, 9...4th house, 10, 11, 12,
13... Partition plate, 14, 15, 16... Communication hole,
27...Electric fan.
Claims (1)
収納された電気部品を冷却する構造の電装箱にお
いて、前記電装箱は、箱体と、この箱体内を複数
の室に区分する仕切壁と、前記複数の室に夫々上
限使用温度が異なる部品別に収納された電気部品
と、この電気部品を冷却する電動フアンとを有
し、前記仕切壁には各室を連通する連通孔が設け
られ、前記複数の室の少なくとも２個の室に分流
して通風され、かつ、分流して通風された室のう
ち上限使用温度の低い部品の収納された室への入
口となる仕切壁の連通孔を、上限使用温度の高い
部品の収納された室への入口となる仕切壁の連通
孔より大きく形成したことを特徴とする電装箱。 In an electrical box configured to use an electric fan to circulate air inside the electrical box to cool electrical components stored in the box, the electrical box includes a box body, a partition wall that divides the box body into a plurality of chambers, Each of the plurality of chambers has electrical components stored in separate parts each having a different upper limit operating temperature, and an electric fan for cooling the electrical component, and the partition wall is provided with a communication hole that communicates each chamber, and the Ventilation is divided into at least two of the plurality of chambers, and a communication hole in the partition wall serves as an entrance to a chamber in which components with a lower upper limit operating temperature are stored in the divided and ventilated chambers. An electrical equipment box characterized in that it is formed larger than a communication hole in a partition wall that serves as an entrance to a chamber in which components with a high upper limit operating temperature are stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15100985U JPH0322954Y2 (en) | 1985-10-02 | 1985-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15100985U JPH0322954Y2 (en) | 1985-10-02 | 1985-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6260096U JPS6260096U (en) | 1987-04-14 |
| JPH0322954Y2 true JPH0322954Y2 (en) | 1991-05-20 |
Family
ID=31067674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15100985U Expired JPH0322954Y2 (en) | 1985-10-02 | 1985-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0322954Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4690874B2 (en) * | 2005-12-01 | 2011-06-01 | 株式会社日立製作所 | Inverter device for special vehicles |
| JP2023179867A (en) * | 2022-06-08 | 2023-12-20 | パナソニックＩｐマネジメント株式会社 | heat pump cycle equipment |
-
1985
- 1985-10-02 JP JP15100985U patent/JPH0322954Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6260096U (en) | 1987-04-14 |
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