JPH0373735B2 - - Google Patents
Info
- Publication number
- JPH0373735B2 JPH0373735B2 JP58057341A JP5734183A JPH0373735B2 JP H0373735 B2 JPH0373735 B2 JP H0373735B2 JP 58057341 A JP58057341 A JP 58057341A JP 5734183 A JP5734183 A JP 5734183A JP H0373735 B2 JPH0373735 B2 JP H0373735B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat insulating
- storage material
- internal combustion
- combustion engine
- 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 - Lifetime
Links
- 238000005338 heat storage Methods 0.000 claims description 18
- 239000011232 storage material Substances 0.000 claims description 18
- 238000002485 combustion reaction Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 5
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims 1
- 239000007790 solid phase Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000011491 glass wool Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermal Insulation (AREA)
Description
【発明の詳細な説明】
本願は、内燃機関に用いられる電子制御装置等
の精密機器、制御機器を高熱から保護するための
断熱装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present application relates to a heat insulating device for protecting precision equipment such as electronic control units and control equipment used in internal combustion engines from high heat.
内燃機関を備えた自動車には、機関作動状態を
制御するための制御装置が用いられる傾向にあ
る。この制御装置は、電子機器から成るのが通常
であり、その性能を正常に保つためには所定温度
以下の雰囲気下に置かれる必要がある。そのた
め、上記装置は、比較的低い恒温状態が得易い車
室内に配置される場合が多い。しかしながら、こ
のように上記装置を車室内に配置した場合には、
該装置と内燃機関とを連結させるためのリード
線、配線が長くなるとともに複雑化し、故障発生
の可能性を増加させ、さらに費用を増加させると
いう問題がともなう。 Vehicles equipped with internal combustion engines tend to use control devices for controlling engine operating conditions. This control device usually consists of electronic equipment, and in order to maintain its performance normally, it needs to be placed in an atmosphere at a predetermined temperature or lower. Therefore, the above-mentioned device is often placed in a vehicle interior where it is easy to obtain a relatively low constant temperature state. However, when the above device is placed inside the vehicle,
Lead wires and wiring for connecting the device and the internal combustion engine become longer and more complicated, increasing the possibility of failure and increasing costs.
他方、このような問題を回避するため、制御装
置を、内燃機関の近傍のエンジンルーム内に配置
するようにすることも考えられるが、この場合に
は次のような欠点をともなう。すなわち、自動車
の走行中はともかく、特に夏期における高速運転
直後の機関停止時には内燃機関からの放熱が多
く、制御装置を過熱させてしまうことになるので
ある。したがつて、この場合には、断熱装置が必
要となる。一般に用いられる断熱装置としては、
グラスウール等の断熱材で上記制御装置を囲つた
構造のものが考えられる。しかし、このもので
は、所定の断熱効果を得るためには部厚な断熱材
を必要とし占有空間を大としてまうことになり、
また断熱材が水分を含んだ場合には断熱効果を低
下させてしまうといつた問題をもたらす。 On the other hand, in order to avoid such problems, it is conceivable to arrange the control device in the engine room near the internal combustion engine, but in this case, the following disadvantages arise. That is, not only while the vehicle is running, but especially when the engine is stopped immediately after high-speed operation in the summer, a large amount of heat is radiated from the internal combustion engine, causing the control device to overheat. Therefore, in this case, a heat insulating device is required. Commonly used insulation devices include:
A structure in which the control device is surrounded by a heat insulating material such as glass wool may be considered. However, in order to obtain the desired insulation effect, this method requires thick insulation material, which increases the space it occupies.
Further, when the heat insulating material contains moisture, the heat insulating effect is reduced, which brings about other problems.
さらに、このような断熱材を用いず、制御装置
を冷却フアン等の冷却装置により冷却するように
することも考えられるが、この場合はエネルギ消
費が増加することになり、経済的でない。 Furthermore, it is conceivable to cool the control device with a cooling device such as a cooling fan without using such a heat insulating material, but in this case, energy consumption will increase and it is not economical.
したがつて、本願は蓄熱物質を充填した断熱層
を設けた断熱容器を、内燃機関の吸気系へ配設す
る構成により、上記欠点を解消させたものであ
る。 Therefore, the present application solves the above-mentioned drawbacks by providing a heat insulating container provided with a heat insulating layer filled with a heat storage material in an intake system of an internal combustion engine.
実施例により説明すると、第１図は本発明の断
熱装置を構成する断熱容器１であつて、上蓋２と
下蓋３とを締付具４により一体化して成る。上蓋
２および下蓋３の各内面には、各々蓄熱材室５，
６が設けられ、該室内に蓄熱材７が充填され、断
熱層を形成する。上下蓋２，３間には、制御装置
が収容される収納室８が形成される。蓄熱材７
は、常温下で固相状態を保ち、だいたいにおいて
常温以上〜100℃の範囲の融点を有するものであ
つて、たとえばステアリン酸、パラフイン、ナフ
タリン等の有機物、またはチオ硫酸ソーダ
（Na2S2O3・5H2O）等の無機水和塩である。 To describe an embodiment, FIG. 1 shows a heat insulating container 1 constituting the heat insulating device of the present invention, which is constructed by integrating an upper lid 2 and a lower lid 3 with a fastener 4. As shown in FIG. The upper lid 2 and the lower lid 3 each have a heat storage material chamber 5,
6 is provided, and a heat storage material 7 is filled in the chamber to form a heat insulating layer. A storage chamber 8 in which a control device is housed is formed between the upper and lower lids 2 and 3. Heat storage material 7
remains in a solid state at room temperature and generally has a melting point in the range from room temperature to 100°C, such as organic substances such as stearic acid, paraffin, and naphthalene, or sodium thiosulfate (Na 2 S 2 O 3・5H 2 O) and other inorganic hydrated salts.
このような断熱容器１は、内燃機関の吸気系に
配置され、断熱装置を構成する。吸気系とは、内
燃機関へ供給される空気の流通路たとえば空気清
浄器内、または内燃機関を冷却するために導入さ
れる空気の流通路たとえば冷却フアン近傍を意味
する。 Such a heat insulating container 1 is arranged in an intake system of an internal combustion engine and constitutes a heat insulating device. The intake system means a flow path for air supplied to the internal combustion engine, such as in an air cleaner, or a flow path for air introduced to cool the internal combustion engine, such as near a cooling fan.
第２図は、吸気系を空気清浄器内の空気流通路
とし、該流通路中に断熱容器１を配設した断熱装
置１０の実施例である。１１は、電子機器から成
る制御装置、１２はリード線であり、そして１３
は、空気清浄器の筐体である。 FIG. 2 shows an embodiment of a heat insulating device 10 in which the intake system is an air flow path in an air purifier and a heat insulating container 1 is disposed in the flow path. 11 is a control device consisting of electronic equipment, 12 is a lead wire, and 13
is the casing of the air purifier.
第２図において、運転停止直後の場合によう
に、内燃機関から高熱が放出されると、エンジン
ルーム内の雰囲気温度は上昇する。これにともな
い断熱装置１０の断熱容器１は、加熱されるがそ
の熱は蓄熱材７により吸収され、断熱容器１内の
収納室８内は一定温度に保持される。すなわち、
断熱容器１に加えられる熱は、常温下において固
相状態にある蓄熱材７を加温、溶融させるのに消
費され融解潜熱として奪われるからである。その
結果、断熱容器１内は、所定時間にわたり、蓄熱
材７の溶融温度以上に上昇せず、その温度内に保
持される。 In FIG. 2, when high heat is released from the internal combustion engine, as is the case immediately after the engine is stopped, the atmospheric temperature in the engine compartment increases. Accordingly, the heat insulating container 1 of the heat insulating device 10 is heated, but the heat is absorbed by the heat storage material 7, and the inside of the storage chamber 8 in the heat insulating container 1 is maintained at a constant temperature. That is,
This is because the heat applied to the heat insulating container 1 is consumed to warm and melt the heat storage material 7, which is in a solid state at room temperature, and is taken away as latent heat of fusion. As a result, the inside of the heat insulating container 1 does not rise above the melting temperature of the heat storage material 7 and is maintained within that temperature for a predetermined period of time.
次に、機関が運転状態に至ると、機関の吸気系
には比較的低温の外気が導入される。外気は、断
熱容器１の周囲を流通し、その間に該容器を冷却
する。断熱容器１が冷却されると、上記加熱によ
り溶融状態にある蓄熱材７が凝固し、その際の凝
固熱は外気により機関内に持ち去られる。その結
果、断熱容器１の蓄熱材７は固相状態に戻る。こ
のような蓄熱材７の溶融状態←→固相状態のサイ
クルは、順次繰り返えされる。 Next, when the engine is in operation, relatively low temperature outside air is introduced into the engine's intake system. The outside air flows around the insulated container 1, cooling it in the meantime. When the heat insulating container 1 is cooled, the heat storage material 7 which is in a molten state due to the heating is solidified, and the heat of solidification at that time is carried away into the engine by the outside air. As a result, the heat storage material 7 in the heat insulating container 1 returns to a solid state. This cycle of the heat storage material 7 changing from a molten state to a solid state is repeated one after another.
第３図に示すように、本発明に用いられる断熱
容器（蓄熱材としてステアリン酸を充填したも
の）は、線図Ａのように、外気温度を100℃に保
つた場合、断熱容器内に温度が約70分経過時まで
60〜70度の値を保持したものに対し、蓄熱材層と
同厚のグラスウールを用いた断熱装置の場合に
は、線図Ｂのように、50〜60分間で90度の値に達
していることが理解される。また、断熱容器内の
温度を60〜70度以下に保持する時間は、前者が約
70分であるのに対し、後者が約20分であることが
理解される。 As shown in Figure 3, the insulated container used in the present invention (filled with stearic acid as a heat storage material) has a temperature inside the insulated container when the outside air temperature is maintained at 100°C, as shown in diagram A. until approximately 70 minutes have passed.
In contrast to those that maintain a temperature of 60 to 70 degrees, in the case of an insulation device using glass wool of the same thickness as the heat storage material layer, the temperature reaches a value of 90 degrees in 50 to 60 minutes, as shown in diagram B. It is understood that there are In addition, the time required to maintain the temperature inside the insulated container below 60 to 70 degrees is approximately
It is understood that the latter is approximately 20 minutes, while the latter is approximately 20 minutes.
以上のように、本発明による断熱装置は、電子
機器等の制御装置が収納される収納室を有しその
周りに蓄熱材の断熱層を設けた断熱容器を、吸気
系に配置して成るものであるから、収納室内の温
度を、所定の期間にわたり、蓄熱材の融点以下に
保持することができ、電子機器を確実に高熱から
保護する。また、断熱装置は、吸気により、自動
的に熱交換されるから、外部エネルギを用いるこ
となく断続的に使用できる。 As described above, the heat insulating device according to the present invention is constructed by disposing an insulating container in the intake system, which has a storage chamber in which a control device such as an electronic device is housed, and a heat insulating layer of heat storage material is provided around the storage chamber. Therefore, the temperature inside the storage chamber can be maintained below the melting point of the heat storage material for a predetermined period of time, and the electronic equipment can be reliably protected from high heat. Further, since the heat insulating device automatically exchanges heat with intake air, it can be used intermittently without using external energy.
第１図は、本発明の断熱装置に用いられる断熱
容器の断面図、第２図は本発明の断熱装置の断面
図、そして第３図は本発明の効果を示す線図であ
る。
１……断熱容器、７……蓄熱材、８……収納
室、１０……断熱装置、１３……空気清浄器の筐
体。
FIG. 1 is a cross-sectional view of a heat-insulating container used in the heat-insulating device of the present invention, FIG. 2 is a cross-sectional view of the heat-insulating device of the present invention, and FIG. 3 is a diagram showing the effects of the present invention. 1... Heat insulation container, 7... Heat storage material, 8... Storage room, 10... Heat insulation device, 13... Air purifier casing.
Claims (1)
態を維持し常温より高い温度で溶融する蓄熱材が
充填されている断熱層を設けた断熱容器を、内燃
機関の吸気系に配設して成る断熱装置。 ２ 蓄熱材が、ステアリン酸、パラフイン、ナフ
タリンである上記第１項記載の断熱装置。 ３ 蓄熱材が、チオ硫酸ソーダ（Na2S2O3・
5H2O）等の無機水和塩である上記第１項記載の
断熱装置。 ４ 吸気系が、内燃機関への空気供給路である上
記第１項記載の断熱装置。 ５ 吸気系が、内燃機関の冷却フアン近傍である
上記第１項記載の断熱装置。 ６ 空気供給路が、空気清浄器内である上記第４
項記載の断熱装置。[Scope of Claims] 1. A heat insulating container having a storage chamber therein and a heat insulating layer filled with a heat storage material that maintains a solid phase state at room temperature and melts at a temperature higher than room temperature is installed in an internal combustion engine. A heat insulating device installed in the intake system of 2. The heat insulating device according to item 1 above, wherein the heat storage material is stearic acid, paraffin, or naphthalene. 3 The heat storage material is sodium thiosulfate (Na 2 S 2 O 3
The heat insulating device according to item 1 above, which is an inorganic hydrated salt such as 5H 2 O). 4. The heat insulation device according to item 1 above, wherein the intake system is an air supply path to the internal combustion engine. 5. The heat insulation device according to item 1 above, wherein the intake system is located near a cooling fan of an internal combustion engine. 6 The above-mentioned fourth part, wherein the air supply path is inside the air purifier.
Insulation device as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58057341A JPS59183034A (en) | 1983-03-31 | 1983-03-31 | Heat insulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58057341A JPS59183034A (en) | 1983-03-31 | 1983-03-31 | Heat insulation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59183034A JPS59183034A (en) | 1984-10-18 |
| JPH0373735B2 true JPH0373735B2 (en) | 1991-11-22 |
Family
ID=13052864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58057341A Granted JPS59183034A (en) | 1983-03-31 | 1983-03-31 | Heat insulation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59183034A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63113764U (en) * | 1987-01-19 | 1988-07-22 |
-
1983
- 1983-03-31 JP JP58057341A patent/JPS59183034A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59183034A (en) | 1984-10-18 |
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