JP2019064380A - Engine room cooling structure - Google Patents

Abstract

To provide an engine room cooling structure which can more efficiently and properly cool a vehicle rear-side region than a radiator in an engine room.SOLUTION: A engine room cooling structure A comprises a partitioning plate part 6 for connecting an upper part of a radiator grill 4 and a radiator support 5, and partitioning an upper side of a first space part 7A between the radiator grill 4 and a radiator 5A. The partitioning plate part 6 comprises: a draft block part 6a for blocking the moving of a first traveling wind which comes into the first space part 7A over the radiator support 5 to a vehicle rear side; and a ventilation flue forming part 6b for forming a ventilation flue 60 which allows the moving of a part of the first traveling wind that comes into the first space part 7A to the vehicle rear side over the radiator support 5 into a form that the ventilation flue is opened toward the vehicle rear side at the upper side of the radiator support 5.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an engine room cooling structure of a vehicle such as a car.

As a specific example of the engine room cooling structure, there is a structure described in Patent Document 1.
In the structure described in this document, the top of the radiator grille provided at the front of the vehicle extends to the top of the support for supporting the radiator located on the rear side of the vehicle. The extended portion is a partition plate that divides the upper side of the space between the radiator grille and the radiator. As a result, it is possible to efficiently cool the radiator water by letting the radiator pass most of the traveling air that has passed through the radiator grille and entered the space.
On the other hand, between the hood covering the engine room and the above-mentioned partition plate portion, the traveling wind which has entered from the dividing line portion of the hood and the radiator grill passes, and this traveling wind is It is also possible to advance to the vehicle rear side. Therefore, it is also possible to cool the area behind the radiator in the engine room, on the vehicle rear side.

  However, in the above-mentioned prior art, as will be described next, there is still room for improvement.

  That is, in a vehicle in which the front-rear dimension of the partition plate portion is elongated, traveling air which has entered between the partition plate portion and the hood from the dividing line portion of the hood and the radiator grille is easily attenuated. For this reason, it becomes difficult to allow the traveling wind entering from the dividing line to reach the vehicle rear side more efficiently than the radiator. In this case, it is not possible to properly cool the devices and devices of the engine intake system and exhaust system provided on the vehicle rear side of the radiator. As a result, for example, the fuel efficiency may be deteriorated due to the increase of the intake temperature, or the heat damage to the exhaust system devices and devices may occur.

Japanese Utility Model Publication No. 56-35418

  The present invention has been conceived under the circumstances as described above, and is an engine room cooling structure capable of efficiently and appropriately cooling a region on the vehicle rear side than a radiator in the engine room Providing that is the task.

  In order to solve the above problems, the present invention takes the following technical measures.

In the engine room cooling structure provided by the present invention, the radiator grille provided on the front side of the engine room at the front of the vehicle and the radiator grille are positioned to be separated by the first space portion on the vehicle rear side. A radiator provided in the engine room and a radiator support for supporting the same, and a partition plate portion provided to connect the upper portion of the radiator grille and the upper portion of the radiator support, and partitioning the upper side of the first space portion And an engine room cooling structure, wherein the partition plate portion is configured such that a first traveling wind, which has entered the first space portion from the radiator grille, passes over the radiator support and is located behind the vehicle. And a radiator blocker for preventing the vehicle from moving to the side, and a part of the first traveling wind that has entered the first space part is the radiator And an air passage forming portion which is open toward the vehicle rear side on the upper side of the radiator support, and which is capable of advancing to the vehicle rear side over the port. It is characterized by

According to such a configuration, the following effects can be obtained.
That is, a part of the first traveling wind that has entered from the radiator grille into the first space between the radiator grille and the radiator passes through the ventilation path and does not pass through the radiator to the vehicle rear side. proceed. Here, since the air passage is opened on the upper side of the radiator support so as to face the rear side of the vehicle, the first running air also flows from the air passage to the region on the vehicle rear side far from the radiator. Can be delivered properly. As a result, the engine intake system and exhaust system equipment / equipment located at the rear side of the vehicle much more efficiently than the radiator can be efficiently cooled, for example, fuel efficiency is improved by reducing the intake temperature, exhaust system equipment / equipment It is possible to prevent the heat damage of the kind appropriately.
When the first traveling wind enters the first space portion, the radiator has its resistance, and the wind pressure in the first space portion is high. For this reason, it is possible to smoothly flow a part of the first traveling wind into the air passage.
On the other hand, the partition plate part partitioning the upper side of the first space part is also provided with a ventilation blocking part which prevents the first traveling wind from traveling over the radiator support and to the vehicle rear side, It is also appropriate to pass the first traveling wind that has entered the first space portion from the radiator grille to the radiator. Therefore, it is possible to avoid the problem that the air volume fed into the radiator is insufficient due to the provision of the above-mentioned air passage.

  In the present invention, preferably, between the hood covering the engine room and the partition plate portion, the second traveling wind entering from the vehicle front side can be advanced to the vehicle rear side with respect to the radiator. The air passage forming portion is a bead shape in which the upper surface portion is a convex surface portion expanded upward, and the lower surface portion is a concave surface portion recessed upward, The concave surface portion is positioned on the upper surface portion of the radiator support, so that the inner region of the concave surface portion is the ventilation path, and the convex surface portion faces the second space portion. ing.

According to such a configuration, the second traveling wind entering the second space between the hood and the partition plate can be advanced to the vehicle rear side relative to the radiator in the engine room In addition to the ability to cool the devices / equipment located behind the radiator more efficiently, the following effects can be further obtained.
That is, since the upper surface portion of the air passage forming portion is a convex surface portion which bulges upward and faces the second space portion, it flows along the convex surface portion in the second traveling wind. It is possible to control the traveling direction and the like of the traveling wind by the shape, the direction, and the like of the convex surface portion. On the other hand, it is possible to control the traveling direction and the like of the first traveling wind passing through the ventilation path by the shape, the direction, and the like of the concave surface portion of the ventilation path formation portion. Therefore, it is possible to realize easily and appropriately that one or both of the first and second traveling winds efficiently act on a desired device / part existing on the rear side of the vehicle in the engine room.
Further, according to the above configuration, the air passage forming portion can be easily formed by providing a so-called upward convex bead-like portion in the partition plate portion, so that the manufacturing cost can be reduced. .

  Other features and advantages of the present invention will become more apparent from the description of the embodiments of the present invention given below with reference to the attached drawings.

It is a principal part top view (state which opened a hood) showing an example of an engine room cooling structure concerning the present invention. (A) is IIa-IIa principal part sectional drawing of FIG. 1, (b) is IIb-IIb principal part sectional drawing of FIG. It is III-III principal part sectional drawing of FIG.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

  The engine room cooling structure A shown in FIG. 1 and FIG. 2 is an engine room 1 provided at the front of the vehicle V and housing the engine E, a hood 2 for closing the upper surface of the engine room 1, a front bumper 3 , A radiator grille 4, a radiator 5A, a radiator support 5, and a partition plate portion 6. The partition plate portion 6 includes a ventilation blocking portion 6a and a ventilation path forming portion 6b which will be described later.

  The radiator grille 4 has a plurality of grille openings 40 for taking in the traveling wind (first traveling wind) into the engine room 1 when the vehicle is traveling. For example, the radiator grille 4 is provided in the front bumper 3 for fitting the grille. It is fitted into the opening and attached. The radiator 5 </ b> A is disposed on the vehicle rear side of the radiator grille 4 in a state of being supported by the radiator support 5. The radiator support 5 is, for example, a member having a rectangular frame shape as viewed from the front, and the radiator 5A is fixedly disposed on the inner side.

  The partition plate portion 6 is provided to extend from the top of the radiator grille 4 to a position on the top surface of the radiator support 5. The partition plate portion 6 is, for example, a flange portion of the front bumper 3, more specifically, a plate-like portion integrally connected to the front upper end of the front bumper 3 and extended toward the rear of the vehicle. However, instead of this, for example, the uppermost portion of the radiator grille 4 can be extended to the vehicle rear side, and the extended portion can be used as the partition plate portion 6.

  The partition plate portion 6 partitions the upper side of the first space portion 7A between the radiator grille 4 and the radiator 5A. On the other hand, the hood 2 is located above the partition plate 6, and a second space 7B extending in the longitudinal direction of the vehicle is formed between them. During traveling of the vehicle, after the traveling wind (second traveling wind) enters the second space 7B from the dividing line 70 between the hood 2 and the radiator grille 4 and passes through the second space 7B, The vehicle travels to the rear side of the vehicle than the radiator 5A. In the engine compartment 1, in addition to the engine E, an intake system 8A and an exhaust system 8B are provided on the vehicle rear side of the radiator 5A. An intake pipe 80 having an intake port 80a and an air cleaner 80b is connected to the intake system device 8A.

  As described above, the partition plate portion 6 includes the air flow blocking portion 6a and the air flow path forming portion 6b (see also FIG. 3). The draft blocking portion 6a is a portion that prevents the first traveling wind that has entered the first space portion 7A from traveling over the radiator support 5 toward the vehicle rear side. In the present embodiment, in the region near the rear end of the partition plate portion 6, a portion overlapped on the upper surface portion of the radiator support 5 with no or almost no gap is the ventilation blocking portion 6a. The fixed connection of the partition plate portion 6 to the radiator support 5 is achieved, for example, by fastening the air flow blocking portion 6a to the upper surface portion of the radiator support 5 using a screw member 90 such as a bolt.

The air passage forming portion 6 b is a portion that forms the air passage 60. The ventilation path 60 is a portion that enables a portion of the first traveling wind that has entered the first space portion 7A to travel over the radiator support 5 toward the vehicle rear side. And is open toward the rear side of the vehicle. In the present embodiment, the air passage forming portion 6b is a portion where a part of the partition plate portion 6 is formed in a so-called upward convex bead shape, and the upper surface portion of the air passage forming portion 6b bulges upward. A convex surface portion 61 and a lower surface portion is a concave surface portion 62 recessed upward. An inner region of the concave surface portion 62 is a ventilation passage 60. The lower surface side of the ventilation path 60 near the rear end is closed by the upper surface of the radiator support 5. The convex surface portion 61 faces the second space portion 7 </ b> B and is a portion that protrudes upward beyond the other portions of the partition plate portion 6.

  As shown in FIG. 1, a cut-out opening 68 is provided at the center of the partition plate 6 in the vehicle width direction. The cut-out opening 68 is a hood attached to the front of the hood 2. The striker (not shown) is a portion that can be locked to a lock mechanism (not shown) separately fixedly provided on the upper front side of the radiator support 5. The notched opening 68 is a portion merely formed in a notched shape in the partition plate portion 6, and is not a portion opened toward the vehicle rear side above the radiator support 5, and therefore referred to in the present invention It does not correspond to the "vent". In the present embodiment, a pair of left and right ventilation passage forming portions 6 b are provided in the vehicle width direction across the cutout opening 68. If the bead-shaped air passage forming portion 6 b is provided close to the cutout opening 68, an effect of reinforcing the vicinity of the formation position of the cutout opening 68 can also be obtained.

  Next, the operation of the engine room cooling structure A will be described.

  First, when the vehicle V is traveling, the first traveling wind from the front of the vehicle enters the first space portion 7A via the radiator grille 4. The upper side of the first space portion 7A is partitioned by the partition plate portion 6, and the ventilation blocking portion 6a is provided, so that the radiator 5A can be fed with the first traveling air without a shortage. It is possible.

  On the other hand, a part of the first traveling wind that has entered the first space portion 7A passes through the ventilation path 60 without passing through the radiator 5A. The radiator 5A acts as a resistance to the first traveling wind, and the wind pressure of the first space portion 7A is high, so that part of the first traveling wind smoothly flows into the air passage 60. Here, since the air passage 60 is located on the upper side of the radiator support 5 and is opened toward the vehicle rear side, the air that has passed through the radiator 5A for the first traveling wind that has passed through the air passage 60. It is possible to reach an area on the rear side of the vehicle compared to the case of FIG. The first traveling air passing through the air passage 60 is lower in temperature than the air passing through the radiator 5A because it does not pass through the radiator 5A. From such a thing, it is possible to cool efficiently and appropriately the place where cooling is insufficient only with the air which passed radiator 5A, using the 1st running wind which passed ventilation path 60. .

  Specifically, it is possible to cause the first traveling wind to advance from the air passage 60 to, for example, the peripheral portion of the intake port 80a and allow the air to be sucked into the intake port 80a. In addition, it is also possible to cause the first traveling wind described above to act on the intake system device 8A and the exhaust system device 8B. Therefore, it is possible to improve the fuel efficiency due to the decrease of the intake temperature of the engine E or to prevent the heat damage of each part.

  The second traveling wind that has entered the second space 7B from the dividing line 70 passes through the second space 7B and travels toward the vehicle rear side in the engine room 1. The second traveling wind does not pass through the radiator 5A as in the case of the first traveling wind that has passed through the air passage 60, so the temperature is relatively low and the cooling action is excellent. Further, since the second space portion 7B is at a position higher than the ventilation passage 60, the second space portion 7B is located in the area further rearward of the vehicle in the engine compartment 1 than the first traveling wind passing through the ventilation passage 60. It is also possible to get the driving wind of Therefore, it is possible to cool the large area in engine room 1 more appropriately.

  The upwardly convex convex surface portion 61 of the air passage forming portion 6b faces the second space portion 7B. For this reason, it is possible to control the advancing direction etc. of the traveling wind which flows along this convex-surface part 61 among the 2nd traveling wind by the shape, direction, etc. of this convex-surface part 61. FIG. Further, as described above, a part of the first traveling wind passes through the air passage 60. Since the air passage 60 is an inner region of the concave surface portion 62 of the air passage forming portion 6b, the concave shape Control can be performed by the shape, orientation, etc. of the surface portion 62. Therefore, it is possible to easily realize that one or both of the first traveling wind and the second traveling wind act intensively at a place where cooling is particularly required. In the present embodiment, since the air passage forming portion 6 b for forming the air passage 60 can be used for the control of the second traveling wind, the configuration is rational.

  The present invention is not limited to the contents of the embodiments described above. The specific configuration of each part of the engine room cooling structure according to the present invention can be variously designed and changed within the intended scope of the present invention.

  In the ventilation blockage of the partition plate, it is essential that the first traveling wind, which has entered the first space from the radiator grille, passes over the radiator support and is on the vehicle rear side (this is a concept including the oblique vehicle rear). It is sufficient if it has a configuration that prevents it from advancing. Therefore, instead of the configuration provided in a state of being superimposed on the upper surface portion of the radiator support as in the embodiment described above, for example, a configuration joined to the upper front surface portion of the radiator support, or A configuration similar to this can also be used.

In the air passage forming portion of the partition plate portion, it is essential that the air passage which allows a part of the first traveling wind which has entered the first space portion to travel over the radiator support to the vehicle rear side. It is sufficient if it is formed in a state in which it faces the vehicle rear side on the upper side of the radiator support and is open. Therefore, it is also possible to set it as the form different from bead shape of an upward convex. Although not practical, as means for forming the air passage, for example, a recess is formed on the upper surface of the radiator support, and the upper surface of the recess is covered by the partition plate to adopt a means for making the recess an air passage. It is also possible. In this case, the part which covers the said recessed part becomes a ventilation path formation part said by this invention.
The specific shape, size, number, arrangement, etc. of the air passage are not limited.

  The partition plate portion is preferably provided to connect the top of the radiator grille and the top of the radiator support as in the above-described embodiment, but is not limited thereto. It may be provided to connect the tops other than the tops of the radiator grille and the radiator support.

A Engine room cooling structure 1 engine room 2 hood 3 front bumper 4 radiator grille 5 radiator support 5A radiator 6 partition plate portion 6a ventilation blocking portion 6b ventilation path forming portion 60 ventilation path 61 convex surface portion 62 concave surface portion 7A first space portion 7B Second space part

Claims (2)

A radiator grille provided in front of the engine room at the front of the vehicle,
A radiator provided in the engine room and a radiator support for supporting the radiator, the radiator grill being positioned on the rear side of the vehicle of the vehicle with the first space portion therebetween;
A partition plate portion provided to connect the upper portion of the radiator grille and the upper portion of the radiator support, and partitioning the upper side of the first space portion;
The engine room cooling structure is equipped with
The partition plate portion is
A ventilation blocking portion that prevents the first traveling wind that has entered the first space portion from the radiator grille from traveling over the radiator support toward the vehicle rear side;
The air passage which allows a part of the first traveling wind that has entered the first space portion to travel to the rear side of the vehicle beyond the top of the radiator support, is a rear side of the vehicle above the radiator support. An air passage forming portion which is formed in a state of being opened toward the side;
Engine room cooling structure characterized by having. The engine room cooling structure according to claim 1, wherein
Between the hood covering the engine room and the partition plate portion, a second space portion capable of causing the second traveling wind entering from the front side of the vehicle to travel to the rear side of the vehicle with respect to the radiator Has been
The air passage forming portion is in the form of a bead in which the upper surface portion is a convex surface portion expanded upward, and the lower surface portion is a concave surface portion recessed upward.
The concave surface portion is positioned on the upper surface portion of the radiator support, whereby the inner region of the concave surface portion is used as the ventilation path.
The engine room cooling structure, wherein the convex surface portion faces the second space portion.

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