JP3205305U - Blower type cooling device with water catching net - Google Patents

Abstract

Provided is a blower-type cooling device capable of easily preventing scattering of condensed water adhering to a heat exchange cooler in an apparatus for transporting air cooled by a heat exchange cooler to cool an electronic device or the like. . A blower-type cooling device according to the present invention includes a blower passage that transports air, and a blower that transports air, a heat exchange cooler 3, and a water catching net 4 are sequentially arranged in the blower passage. At least a part of the water catching net 4 is arranged to be inclined toward the leeward side with respect to the flow direction of the air passage. [Selection] Figure 4

Description

  The present invention relates to a blower-type cooling device that is effective as a heat countermeasure in designing electronic parts, modules, and devices that combine these, and more specifically, a blower and a heat exchanger for cooling are provided in a cooling passage. The present invention relates to an air-cooling device provided.

  Electronic components, modules, and devices that combine these components continue to shrink in size even though their functions are increasing, and a large amount of heat is generated in a smaller space than before. This is the cause of failure.

  In addition, the amount of charge per unit time for automobile batteries has increased significantly due to the extended mileage and shortened charging time, and a large amount of heat is generated from the battery during charging, which reduces the charging efficiency. Or shorten the battery life.

  Therefore, an efficient cooling method according to each condition is adopted as a heat countermeasure for the various electronic devices. Such cooling methods are classified as passive and active, but can also be used in combination.

  In the passive cooling method, a heat sink that is an object that absorbs heat by contact with a heat source and dissipates it to the surrounding environment (water, air, etc.), heat that increases heat transfer efficiency between the heat source and the heat source. It is known to use a cooling component such as a heat spreader indicating an interface material or a metal plate having high thermal conductivity. In particular, as a cooling component of a passive cooling method in a battery, a heat storage material pack is disclosed in JP 2001-236145 A, a heat pipe is disclosed in JP 2011-183862 A, a heat sink is disclosed in JP 2012-227148 A, Each is disclosed.

  In the active cooling method, the Peltier effect of absorbing heat at one joint surface and generating heat at the other joint surface when a current is passed through the joint portion of two different conductors, a cooling fan, etc. It is known to use convection using In particular, as an active cooling method for a battery, a method using the Peltier effect is disclosed in Japanese Patent Application Publication No. 2009-512154, Japanese Patent Application Publication No. 2010-532066, and the like. Japanese Patent Application Laid-Open No. 2011-76925 discloses a method of using a convection by providing a compressed air supply mechanism as disclosed in Japanese Patent Application Laid-Open Nos. 2002-31441, 2012-23141, and 2013-134766. Discloses a method of using a convection by placing a battery in a blower passage in which a blower and a heat exchange cooler are arranged.

  In particular, an effective cooling method for a large amount of heat generated due to changes in the operating state of the electronic device and the external environment is disclosed in Japanese Laid-Open Patent Publication No. 2002-313441. In this method, a heat exchange cooler and an electronic device are arranged, and an independent cooling function is provided so that cooling can be forcibly performed. In particular, the above-described method is effective for an in-vehicle battery because the amount of heat generated during charging and discharging is significantly affected by the driving state of the vehicle, the usage state of the electronic device, the temperature environment around the vehicle, and the like.

  By the way, in general, an electronic component such as an in-vehicle battery through which a high voltage flows is considered so as not to cause an electrical short circuit. In this respect, in the above cooling device, the condensate adhering to the heat exchange cooler is not considered to be scattered on the electronic equipment by blowing air, and in order to improve the safety and reliability of the product, There was room.

  Therefore, in Japanese Patent Laid-Open No. 2012-23141, a completely hermetic cooling device is used, and in Japanese Patent Laid-Open No. 2013-134676, the above-described problems are attempted by improving the heat exchange cooler itself. However, the whole system becomes complicated, and improvement by a simpler method is desired.

JP 2001-236145 A JP 2011-183862 A JP 2012-227148 A Special table 2009-512154 gazette Special table 2010-532066 gazette JP 2011-76925 A JP 2002-31441 A JP 2012-23141 A JP 2013-13476A

  The present invention is an apparatus for transporting air cooled by a heat exchange cooler to cool electronic devices and the like. The purpose is to provide.

  In order to solve the above-described problem, the blower-type cooling device according to the first aspect of the present invention is a blower-type cooling device that blows air, and sequentially arranges a case having a blower passage therein and the blower passage. The water collecting net includes a blower, a heat exchange cooler, and a water collecting net, and the water collecting net is arranged so as to be inclined so that at least the lower part moves away in the downstream direction of the air blowing path. Due to this feature, scattering of the condensed water adhering to the heat exchange cooler can be easily prevented, and the discharge of the condensed water adhering to the water catching net is promoted by the wind force in addition to the gravity. This is particularly effective when the air-cooling device is installed so that the air flows downward in the vertical direction.

  As a 2nd aspect, it is a ventilation type cooling device which conveys air and cools an electronic device, Comprising: The case which has an air passage inside, the air blower, the heat exchange cooler which are sequentially arranged in the air passage, and The structure provided with the catching net. In particular, the water catching net is characterized by a structure that promotes the discharge of the condensed water that is separated from the heat exchange cooler and captured by the water catching net.

  As a 3rd aspect, the opening area of the mesh of a water catching net is changed with respect to the surface direction of a water catching net, and discharge | emission of condensed water is accelerated | stimulated. “Change with respect to the surface direction” includes “change with respect to the (in-plane) gravity direction”.

  As a 4th aspect, the mesh | network of a water catching net is comprised using the vertical line parallel to the surface direction of a water catching net, and the horizontal line which is not orthogonal to a vertical line, and accelerates | stimulates discharge of condensed water by this.

  As a 5th aspect, the vertical line and horizontal line of a catching net are made into a flat structure, and, thereby, discharge | emission of condensed water is accelerated | stimulated.

  As a sixth aspect, the water collecting net is made hydrophilic so that the condensed water adhering to the water collecting net is not scattered by blowing.

  According to the present invention, in an apparatus for transporting air cooled by a heat exchange cooler and cooling an electronic device or the like, it is possible to prevent scattering of condensed water adhering to the heat exchange cooler with a very simple structure. It is possible to provide a blower type cooling device with high safety and reliability. In particular, it is suitable for a vehicle-mounted battery or the like whose temperature changes greatly due to changes in the operating state of the vehicle and the external environment.

In order to show schematic structure of the ventilation type cooling device concerning a 1st embodiment of the present invention, it is a flat step view cut from the horizontal direction and seen from right above. It is the longitudinal cross-sectional view which cut | disconnected the dashed-dotted line A shown in FIG. 1 in the orthogonal | vertical direction with respect to the paper surface. (B) is sectional drawing which cut | disconnected the dashed-dotted line C in (a) in the orthogonal | vertical direction with respect to the paper surface in the form of the woven net of the water catching net which comprises the ventilation type cooling device which concerns on embodiment of this invention. It is the longitudinal cross-sectional view cut | disconnected like FIG. 2 about the ventilation type cooling device which concerns on the 2nd Embodiment of this invention. It is the longitudinal cross-sectional view cut | disconnected similarly to FIG. 2 about the ventilation type cooling device which concerns on the 3rd Embodiment of this invention. It is the longitudinal cross-sectional view cut | disconnected similarly to FIG. 2 about the ventilation type cooling device which concerns on 4th Embodiment of this invention. It is sectional drawing which cut | disconnected the opening shape of the water catching net which comprises the ventilation type cooling device which concerns on the 5th Embodiment of this invention in the perpendicular direction with respect to the paper surface of the dashed-dotted line B of FIG. It is sectional drawing which cut | disconnected the opening shape of the water catching net which comprises the ventilation type cooling device which concerns on the 6th Embodiment of this invention in the perpendicular direction with respect to the paper surface of the dashed-dotted line B of FIG. In the form of a woven net of a flat structure water-collecting net constituting a blower-type cooling device according to a seventh embodiment of the present invention, (b) is a one-dot chain line D in (a) cut in a direction perpendicular to the paper surface. FIG.

  Hereinafter, although embodiment of this invention is described using drawing, it is not limited to the following embodiment.

  As shown in FIG. 1, the blower-type cooling device 1 according to the first embodiment of the present invention is sequentially arranged in at least a case 5 in which a blower path 7 for conveying air is formed and a blower path 7. The air blower 2, the heat exchange cooler 3, and the water catching net 4 are sequentially arranged, and the electronic device 8 arranged on the leeward side of the air passage 7 is cooled. Reference numeral 11 denotes a control unit of the heat exchange cooler. However, the structure of the ventilation type cooling device shown in FIG. 1 is an example, and the present invention is not limited to this.

  In order to clarify the eye as the technical idea of the present invention, FIG. 2 shows a longitudinal sectional view in which the one-dot chain line A of FIG. 1 is cut in a direction perpendicular to the paper surface. As is apparent from the figure, the condensed water generated on the heat exchange cooler 3 and separated from the heat exchange cooler 3 by the conveyed air is captured by the water catching net 4 and discharged to the drain port 12. Thus, the failure of the electronic device is prevented.

  The water-collecting net used here is not particularly limited, and a general woven net as shown in FIG. 3 can be used. The amount of condensate splash varies from the air volume and cooling capacity of the blower-type cooling device designed according to the heat generation amount of the electronic equipment and the temperature control range, etc., and the corresponding wire diameter, mesh number (number per 1 inch), A net with an aperture, aperture ratio, and thickness is selected. Furthermore, the thin net-thick thing which carried out the press processing so that it might become thin, such as calendaring, etc. on the net of the woven net shown in FIG. 3 is more preferably used. This is because the water droplets of the condensed water that has been scattered tend to collect in the gaps where the vertical lines (warp yarns) and the horizontal lines (weft yarns) cross, and the discharge from the condensate water collection net is delayed, but press processing was applied. This is because the net has a small gap between the warp and the weft, and the condensed water is easily discharged smoothly from the catching net.

  In the second embodiment, as shown in the longitudinal sectional view in FIG. 4, the water collection net is arranged so as to be inclined in a direction away from the leeward side with respect to the air flow direction in the air passage. It is. As a result, the air that has reached the water catching net passes along the mesh and flows to the downstream side of the water catching net 4 (first air), and partly along the inclination of the water catching net 4 Air flowing downward (second air) is generated. The condensed water adhering to the water catching net 4 is pushed down by the flow of the second air, and the discharge is promoted not only by gravity but also by wind power. In addition, in FIG. 4, description of the lower surface of the drain port 12 or the case 5 is abbreviate | omitted.

  In view of the fact that it is not necessary to incline the entire water catching net in utilizing the effect of the wind force, the third embodiment only shows the lower part of the water catching net as shown in FIG. Is inclined in a direction away from the leeward side.

  Furthermore, in the fourth embodiment, when the blower-type cooling device is installed so that the air passage is in the vertical direction, the both sides of the water catching net are leeward as shown in FIG. It is made to incline in the direction which goes away toward the side. With this configuration, the air that has reached the water catching net 4 is guided to the inclined side, so that it can be prevented from dropping on the electronic device 8 side.

  On the other hand, the fifth embodiment relates to the shape of the woven net of the water catching net, and has a configuration in which the opening area is different in the surface of the water catching net so that the condensed water attached to the water catching net is discharged more smoothly. Is. Condensed water is captured one after another in the water catching net 4, the size of the water droplets gradually increases, and eventually moves downward due to gravity. For this reason, the amount of condensed water adhering to the water catching net 7 increases toward the bottom. Therefore, as shown as the water catching net 4A in FIG. 7, by increasing the opening area of the woven mesh according to the direction in which the condensed water is discharged, stagnation of the condensed water can be prevented and the drainage capacity can be improved. .

  In the sixth embodiment, regarding the form of the woven net of the water catching net, in order to discharge the condensed water adhering to the water catching net more smoothly, as shown as the water catching net 4B in FIG. The warp yarns are parallel to the surface direction and weft yarns that are not orthogonal to the warp yarns. Accordingly, the condensate is prevented from staying by increasing the opening area, and the drainage capacity can be improved.

  Furthermore, the seventh embodiment also relates to the form of the weave net of the water catching net. As shown in FIG. 9, the crossing portion of the warp and the weft has a completely flat structure. As described above, this is a contrivance for reducing the condensed water that tends to accumulate in the intersection of the warp and the weft.

  In the eighth embodiment, regarding the material of the water catching net, a hydrophilic material is adopted for the water catching net. In the case of the hydrophobic water catching net, the wetness of the condensed water catching net is poor (the contact angle is large), and it is easily detached from the surface of the heat exchange cooler 3 and scattered to the leeward side. On the other hand, if the water-collecting net is hydrophilic, the wetness to the water-collecting net of condensed water is good (the contact angle is small) and the surface of the water-collecting net 4 spreads thinly. It is discharged to flow. As a general criterion for the hydrophilicity of a material, any material can be used as long as the contact angle of water with respect to the material is less than 90 ° and this criterion is satisfied. However, since the wettability with respect to the water material is determined by the relationship between the surface tension of the water and the surface tension of the material, in the case of an organic material, a surface tension of 35 to 50 mN / m is more preferable. For example, yarns such as nylon resin, polyimide resin, and acrylic resin can be raised. On the other hand, in the case of an inorganic material, the surface of the metal material is in an oxidized state, and the wettability to water is very good. However, as the water catching net, stainless steel that is generally easily available and does not rust is most preferable.

  In the ninth embodiment, a water collection net coated with a hydrophilic paint is used. As described above, the contact angle of water with respect to the coating film of the hydrophilic paint is preferably less than 90 °. Furthermore, it is more preferable that the surface tension of the coating film of the hydrophilic paint is 35 to 50 mN / m.

  The blower-type cooling device of the present invention can be effectively used for heat countermeasures of electronic parts, modules, and devices that combine these. In particular, from the viewpoint of safety of electronic devices through which a high voltage flows, the amount of heat generated during charging / discharging depends greatly on the driving state of the vehicle, and is optimal for an in-vehicle battery whose outside air temperature varies greatly depending on the environment.

DESCRIPTION OF SYMBOLS 1 Blower-type cooling device 2 Blower 3 Heat exchange cooler 4 Water catching net 5 Case 7 Blower path 8 Electronic device 9 Filter 11 Control part of heat exchange cooler 12 Drain outlet

Claims (7)

  A blower-type cooling device that blows air, and includes a case having an air passage inside, and a blower, a heat exchange cooler, and a water catching net that are sequentially arranged in the air passage, and the water catching net is The blower-type cooling device, wherein the blower-type cooling device is arranged so as to be inclined so that at least the lower part moves away from the downstream direction of the blower passage.   A blower-type cooling device that conveys air to cool an electronic device, and includes a case having an air passage inside, and a blower, a heat exchange cooler, and a water catching net that are sequentially arranged in the air passage. An air-cooling device characterized by that.   The blower-type cooling device according to claim 1 or 2, wherein an opening area of the mesh of the water catching net is changed with respect to a surface direction of the water catching net.   The ventilation type cooling device according to claim 1 or 2, wherein the mesh of the water catching net is configured using a vertical line parallel to a surface direction of the water catching net and a horizontal line not orthogonal to the warp yarn. Blower type cooling device.   The blower type cooling device according to claim 3 or 4, wherein a vertical line and a horizontal line of the water catching net have a flat structure.   The blower-type cooling device according to claim 1, wherein a hydrophilic material is used as the water-collecting net.   6. The blower-type cooling device according to claim 1, wherein a hydrophilic paint is applied to the water catching net. 7.

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