JP2001199364A - Front end panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce cost for manufacturing a control unit for controlling electrical machinery and apparatus including an electrical fan and a head light. SOLUTION: A radiating part 830 of the control unit 800 is exposed to air circulating in an intake air passage 710 formed in a panel main body part 450. The control unit 800 can be thereby cooled by air of lower temperature (approximately 35 deg.C) than air increased in temperature (approximately 60 deg.C) after passing through a condenser 200 and a radiator 100. Since cooling effect (cooling capacity) can be improved, the radiating part 830 can be miniaturized and a structure of the control unit 800 can be simplified, and the cost for manufacturing the control unit 800 can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front end panel including at least a radiator, and to which a vehicle front end component disposed at a front end side of an engine room (vehicle) is assembled.

[0002]

2. Description of the Related Art A control unit for controlling electric equipment such as an electric fan for a radiator and a headlight (headlight) includes:
Usually, it is arranged in the engine room. For this reason,
Since the control unit is exposed to high-temperature air (atmosphere) that has passed through the radiator, it is difficult to sufficiently cool the control unit. Therefore, conventionally, measures such as enlarging the heat radiating portion of the control unit and making the control unit have a complicated shape have been taken.

[0003]

However, the above-described measures increase the size of the heat radiating portion and complicate the structure of the control unit (the mounting structure of the electronic components), so that the manufacturing cost of the control unit can be reduced. difficult.

[0004] In view of the above, an object of the present invention is to reduce the manufacturing cost of a control unit.

[0005]

According to the present invention, in order to attain the above object, according to the first aspect of the present invention, a vehicle front end part including at least a radiator (100) and disposed on a vehicle front end side is provided. A radiator (10) is mounted on a panel body (450) on which a front end part (123) is mounted.
0), and an air passage (710) for flowing air to the rear side of the vehicle, and a control unit (8) for controlling electric equipment.
00) is provided, and the control unit (800) is configured to be cooled by air flowing through the air passage (710).

[0006] Thus, the control unit (800) can be cooled with air having a lower temperature than the air whose temperature has increased after passing through the radiator (100), so that the cooling effect (cooling capacity) is improved. be able to. Therefore, the structure of the control unit (800) can be simplified, and the manufacturing cost of the control unit (800) can be reduced.

According to a second aspect of the present invention, there is provided a front end panel including at least a radiator (100) and being assembled with a vehicle front end part (123) disposed on the vehicle front end side, wherein the vehicle front end part (123) is provided. An air passage (710) for guiding air to the intake side of the internal combustion engine and a unit mounting portion (412) for mounting a control unit (800) for controlling electric equipment are provided on a panel body (450) on which is mounted. Furthermore, the control unit (800) is configured to be cooled by air flowing through the air passage (710).

Accordingly, the control unit (800) can be cooled with air having a lower temperature than the air whose temperature has increased after passing through the radiator (100), so that the cooling effect (cooling capacity) is improved. be able to. Therefore, the structure of the control unit (800) can be simplified, and the manufacturing cost of the control unit (800) can be reduced.

It is desirable that the heat radiating portion (830) of the control unit (800) be exposed to the air flowing through the air passage (710).

Further, as in the fourth aspect of the present invention, the heat radiating portion (830) and the panel body (450) may be integrated.

According to a fifth aspect of the present invention, the panel body (450) is made of metal, and the heat radiating portion (830) is formed integrally with the panel body (450).

As a result, the number of parts can be reduced, so that the manufacturing cost of the control unit (800) and the panel body (450) can be reduced.

Further, since the panel body (450) is made of metal, heat can be radiated in the entire panel body (450) and the rigidity of the panel body (450) can be increased.

According to the sixth aspect of the present invention, the panel body (450) is made of resin and the control unit (800)
Is a mounting board (82) on which the electronic component (810) is mounted.
0), a casing (86) for housing the mounting board (820).
0) and a metal heat radiating portion (830) for radiating heat in the casing (860). The heat radiating portion (830) further includes a panel body (45).
0) to form a maze structure (850) by contacting a part of the casing (860), thereby closing the air passage (710) side of the casing (860).

Accordingly, it is possible to prevent the water such as rainwater that has entered the air passage (710) from entering the casing (860) and the mounting board (820) from being wet.

Although the maze structure (850) prevents rainwater from entering the casing (860), when high pressure acts on the air passage (710) during high-speed running or the like, It may not be possible to sufficiently prevent rainwater from entering.

On the other hand, in the invention according to claim 7, the heat radiating portion (830) is located at a lower part in the casing (860) and is exposed to the air flowing through the air passage (710). And the mounting board (8
20) is disposed above the casing (860) with a predetermined distance from the heat radiating portion (830), so that rainwater passes through the maze structure (850) and enters the casing (860). However, it is possible to prevent the mounting substrate (820) from being wet.

According to the invention described in claim 8, the front end panel includes at least a radiator (100) and is fitted with a vehicle front end part (123) disposed on a front end side of an engine room. 123)
A unit mounting part (412) for mounting a control unit (800) for controlling an electric device is provided on a panel body part (450) on which is assembled, further, air is taken in from outside the engine room, and the control unit is operated by the taken air. (800) is cooled.

Thus, since the control unit (800) can be cooled with air having a lower temperature than the air whose temperature has increased after passing through the radiator (100), the cooling effect (cooling capacity) is improved. be able to. Therefore, the structure of the control unit (800) can be simplified, and the manufacturing cost of the control unit (800) can be reduced. Incidentally, the reference numerals in parentheses of the above means are examples showing the correspondence with specific means described in the embodiments described later.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment)
A vehicle equipped with a radiator for cooling cooling water of an engine for driving the vehicle (internal combustion engine), a condenser for a vehicle refrigeration cycle (air conditioner), and a blower unit for blowing cooling air to the radiator and the condenser at a front end of the vehicle. FIG. 1 is an exploded perspective view of a front end structure according to the present embodiment in a case where a front end part is used.

In FIG. 1, reference numeral 100 denotes a radiator;
0 is a condenser and 300 is a blower unit.
Hereinafter, the radiator 100, the condenser 200, and the blower unit 300 will be collectively referred to as a vehicle front end part 1.
23.

The radiator 100 has a plurality of radiator tubes 111 through which the cooling water flows, and the radiator tubes 111 are disposed at both ends in the longitudinal direction of the radiator tubes 111.
Is a well-known multi-flow heat exchanger composed of a radiator tank 120 and the like communicating with the heat exchanger.

The condenser 200 is also connected to the radiator 10.
As in the case of the condenser tube 211, a condenser core 210 composed of a plurality of condenser tubes 211 through which a refrigerant flows, and a condenser tank 22 disposed at both ends in the longitudinal direction of the condenser tube 211 and communicating with the condenser tubes 211
It is a well-known multi-flow type heat exchanger composed of 0 or the like. In this embodiment, both heat exchangers 100, 20
0 indicates tubes 111 and 211 in a vehicle mounted state.
Are arranged so as to extend in the horizontal direction, and the tanks 120, 2
20 are arranged so as to extend in the vertical direction (vertical direction).

Reference numeral 400 denotes a resin front end panel (hereinafter, abbreviated as a panel) to which the vehicle front end part 123 is attached and fixed. As shown in FIG. The upper beam member (upper beam) 410 extending in the vertical direction, the lower beam member (lower beam) 420 located in the lower side and extending in the horizontal direction, and the pillar portion (pillar) extending in the vertical direction and connecting the two beam members 410 and 420 ) 431, 432 and the like. Then, both the beam members 410 and 420 and the first and second support portions 43
1, 432, etc., and a bracket portion 4
The one composed of 40 or the like is called a panel main body 450.

The two beam members 410 and 420 and the first and second support portions 431 and 432 have a substantially U-shaped groove shape having a sectional shape opening toward the vehicle rear side.
0, 420, 431 and 432, both beam members 410, 4 and 4 are formed so as to partition a substantially U-shaped groove into a plurality of spaces.
A rectangular plate-like rib wall (not shown) for increasing the torsional rigidity of the 20 and the first and second support portions 431 and 432 is integrally formed.

As shown in FIG. 3, the opening side of the upper beam member 410 is located on the intake side (not shown) of a vehicle running internal combustion engine (not shown) disposed rearward of the vehicle with respect to the upper beam member 410. A resin intake duct 700 for guiding air (intake) to the intake manifold) is connected. On the other hand, as shown in FIGS. 1 to 3, an outside air inlet 411 that guides outside air into the intake duct 700 from the front side of the vehicle is formed on the front side of the upper beam member 410.

For this reason, the intake air taken into the internal combustion engine (engine) is taken into the intake duct 700 from outside the engine room where the internal combustion engine is mounted, and bypasses the condenser 200 and the radiator 100, as shown in FIG. Then, it is guided from the panel 400 to the intake side of the internal combustion engine located on the vehicle rear side. Therefore, hereinafter, the air passage from the outside air inlet 411 to the intake duct 700 via the inside of the upper beam member 410 (the panel body 450) is referred to as an intake passage 710.

The upper beam member 410 (panel body 4)
At the top of 50), a blower unit (electric fan) 30
0, a unit mounting portion 412 for mounting a control unit 800 for controlling electric devices mounted on a front portion of the vehicle such as a headlight (not shown), a turn signal, and a horn is formed.

The unit mounting portion 412 is formed with a panel body 450 so that a metal heat radiating portion 830 (to be described later, made of aluminum in this embodiment) is exposed to the air flowing through the intake passage 710. At the same time, it is insert molded and integrated with the panel body 450.

The control unit 800 includes an electronic component 810 including a semiconductor element such as an integrated circuit (IC), a mounting board 820 on which the electronic component 810 is mounted, and a heat radiator for radiating heat generated in the electronic component 810. Part 830
(See FIG. 4).

Incidentally, the control unit 800 (the electronic component 8
10 and the mounting board 820) are assembled to the panel main body 450 (upper beam member 410), and are covered with a lid 840 in a watertight manner. Note that a sealing material such as packing or liquid packing is provided in a gap between the lid 840 assembled to the panel main body 450 by a fastening means such as a screw and the panel main body 450 (upper beam member 410). I have.

Incidentally, in FIG. 1, reference numeral 500 denotes a metal bumper reinforcement (hereinafter, referred to as a cushioning member) on the front side of the vehicle.
Abbreviated as bumper. ), And 510 is a resin bumper cover. Then, the bumper 500 and the panel 40
0 is fixed to a body (side member) 600 on the side of the vehicle by fastening means such as bolts, and the vehicle front end part 123 is assembled to the radiator 100 by connecting the condenser 200 and the blower unit 300 to the radiator 100 by fastening means such as bolts. Panel 4 with one part (unit) fixed
00 is assembled.

Next, the features of this embodiment will be described.

According to the present embodiment, since the heat radiating portion 830 is configured to be exposed to the air flowing through the intake passage 710, the temperature of the air passing through the condenser 200 and the radiator 100 (about 60 C), the control unit 800 can be cooled with air at a lower temperature (about 35 ° C). Therefore, the cooling effect (cooling capacity)
Therefore, it is possible to reduce the size of the heat radiating section 830 and simplify the structure of the control unit 800 (the mounting structure of the electronic component 810).
Manufacturing cost can be reduced.

(Second Embodiment) FIGS. 5 and 6 are sectional views showing features of the present embodiment, and FIG. 7 is an external perspective view of the present embodiment.

In this embodiment, as shown in FIGS. 5 and 6, a part of the heat radiating part (heat sink, heat radiating fin) 830 and a part of the panel body 450 are brought into contact to form a maze structure 850. , The mounting substrate 82 with the heat radiation portion 830 interposed therebetween.
The heat dissipating portion 83 is formed so as to separate the
0, a resin casing 8 for housing the mounting board 820
60 is closed on the intake passage 710 side.

At this time, the heat radiating portion 830 is
60, while the mounting substrate 820 is
The mounting board 820 is disposed above the casing 860 with a predetermined distance from the heat radiating section 830, and the mounting board 820 is provided with a wiring pattern (not shown) of the mounting board 820 (this embodiment). Of the mounting board 820, the side opposite to the surface on which the electronic component 810 is mounted)
Are arranged in the casing 860 so as not to face directly (to be located on the back side).

In the present embodiment, the panel body 450
A maze structure (mechanical seal portion) 850 is provided by providing a protrusion 851 that partially contacts the heat radiating portion 830 and a protrusion 852 that protrudes toward the panel body 450 on the heat radiating portion 830.

With the configuration described above, the intake passage 710
It is possible to prevent the moisture such as rainwater that has entered the inside from entering the casing 860 and the mounting board 820 from being wet.

Although the labyrinth structure (mechanical seal portion) 850 prevents rainwater from entering the casing 860, it is not sufficient when high pressure acts on the intake passage 710 during high-speed running or the like. It may not be possible to prevent rainwater from entering.

On the other hand, in the present embodiment, the radiator 8
30 is located at a lower part in the casing 860, while the mounting board 820 is disposed above the casing 860 with a predetermined distance from the heat radiating part 830, so that the rainwater has a maze structure (mechanical seal part). Even if the mounting board 820 passes through the casing 860 and passes through the casing 860, the mounting board 820 can be prevented from being wet.

Further, the mounting board 820 is disposed in the casing 860 such that the side of the mounting board 820 on which the wiring pattern is provided does not directly face the heat radiating section 830 (is located on the back side). Therefore, it is possible to prevent problems such as leakage due to being wet.

(Third Embodiment) In this embodiment, as shown in FIG. 8, the panel body 450 is made of metal (in this embodiment,
Aluminum) and the heat radiating portion 830
It is formed integrally with 50.

As a result, the number of parts can be reduced, so that the control unit 800 and the panel body 450 can be reduced.
Manufacturing cost can be reduced.

Further, since the panel body 450 is made of metal, heat can be dissipated in the entire panel body 450 and the rigidity of the panel body 450 can be increased.

(Other Embodiments) In the first embodiment,
Although the heat radiating portion 830 and the panel main body 450 are integrated by insert molding, the present invention is not limited to this, and the both 830 and 450 may be separate.

In the above-described embodiment, the heat radiating section 830
The control unit 80 is exposed by exposing
0, but the entire control unit 800 is
10 may be arranged in the panel body 450.

Further, air flowing through intake passage 710 may be introduced into control unit 800 to directly cool electronic component 810.

The heat dissipating section 380 may have a structure in which a part of the panel body is directly exposed to cold air without using a separate member.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a front end portion of a vehicle using a front end panel according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a front end panel according to the first embodiment of the present invention.

FIG. 3 is an exploded enlarged view of a unit mounting portion according to the first embodiment of the present invention.

FIG. 4 is a front view of a heat radiating unit according to the first embodiment of the present invention.

FIG. 5 is a cross-sectional view taken along the line AA of FIG. 7 in a heat radiation section according to a second embodiment of the present invention.

FIG. 6 is a cross-sectional view of the heat radiation unit according to the second embodiment of the present invention taken along line BB of FIG. 7;

FIG. 7 is an exploded perspective view of a front end portion of a vehicle using a front end panel according to a second embodiment of the present invention.

FIG. 8 is an exploded perspective view of a front end portion of a vehicle using a front end panel according to a third embodiment of the present invention.

[Explanation of symbols]

400: front end panel, 410: upper beam member, 411: outside air inlet, 412: unit mounting part, 4
Reference Signs List 20 lower beam member, 431 first support portion, 432 second support portion, 450 panel body portion, 470 intake duct, 710 intake passage (air passage), 800 control unit, 810 electronic components , 820... Mounting board, 830.
Heat radiating part.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Harumi Okai 1-1-1 Showa-cho, Kariya-shi, Aichi F-term in DENSO Corporation (reference) 3D003 AA01 AA08 BB01 CA02 CA04 DA04 3D038 AA10 AB01 AC01 AC13 AC20

Claims (8)

[Claims] 1. A front end panel including at least a radiator (100) and being assembled with a vehicle front end part (123) disposed on a vehicle front end side, wherein the panel main body part is assembled with the vehicle front end part (123). (450) an air passage (710) for bypassing the radiator (100) and circulating air to the vehicle rear side;
And a unit mounting portion (412) for mounting a control unit (800) for controlling an electric device, and the control unit (800) is cooled by air flowing through the air passage (710). A front end panel characterized in that it is configured as described above. 2. A front end panel including at least a radiator (100) and being assembled with a vehicle front end part (123) disposed on a vehicle front end side, wherein the panel main body part is assembled with the vehicle front end part (123). (450), an air passage (710) for guiding air to the intake side of the internal combustion engine, and a unit mounting portion (41) for mounting a control unit (800) for controlling electric equipment.
2), wherein the control unit (800) is cooled by air flowing through the air passage (710). The control unit (800) includes a mounting board (820) on which an electronic component (810) is mounted, and a radiator (830) for radiating heat generated by the electronic component (810). 3. The front end panel according to claim 1, wherein the front end panel is configured to be exposed to the air flowing through the air passage. 4. The panel main body (450) is made of resin, the heat radiating part (830) is made of metal, and the heat radiating part (830) is integrated with the panel main body (450). The front end panel according to claim 3, wherein the front end panel is provided. 5. The panel body (450) is made of metal, and the radiator (830) is made of the panel body (450).
The front end panel according to claim 3, wherein the front end panel is formed integrally with the front end panel. 6. The panel main body (450) is made of resin, and the control unit (800) includes a mounting board (820) on which an electronic component (810) is mounted, and the mounting board (82).
0), and a metal heat radiating portion (830) for radiating heat in the casing (860). The heat radiating portion (830) Is the panel body (4
The front end according to claim 1 or 2, wherein a maze structure (850) is in contact with a part of the casing (860) to close the air passage (710) side of the casing (860). panel. 7. The air radiator (830) is located at a lower part in the casing (860).
10) It is arranged so as to be exposed to the air flowing inside, and the mounting board (820) further comprises the heat radiating section (83).
The front end panel according to claim 6, wherein the front end panel is disposed at an upper side of the casing (860) with a predetermined distance from the casing (860). 8. A front end panel including at least a radiator (100) and being assembled with a vehicle front end part (123) disposed on a front end side of an engine room, wherein the panel is assembled with the vehicle front end part (123). The control unit (8) for controlling the electric equipment is provided in the main body (450).
A front end panel, further comprising: a unit mounting portion (412) for mounting the control unit (00), wherein air is taken in from outside the engine room, and the control unit (800) is cooled by the taken air.