JP2005231455A - Inlet port structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent generation of noise and infiltration of water and maintain a low posture from inside the room. <P>SOLUTION: The inlet port 100 is the inlet port of a cooling air passage provided in the cabin of the vehicle, and comprises a frame 208 provided at an opening part 108 of the cooling air passage, a shielding plate 202 which is provided at the cabin side than the opening part 108 and covers a part of the opening part 108, and fin parts 204, 206 which are provided on the frame 208 and support the shielding plate 202. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an inlet structure, and more particularly, to an inlet structure of a cooling air passage provided in a vehicle interior.

  Conventionally, in a hybrid vehicle, an electric vehicle, and a fuel cell vehicle, a cooling device that cools electric devices such as a motor, an inverter, a generator, and a power storage mechanism is required. For example, a battery cooling device, which is a power storage mechanism mounted on a vehicle, operates a cooling fan to intake air from an air intake in a passenger compartment of the vehicle. The sucked air is sent to the battery through the cooling air passage. The blown air is discharged outside the vehicle after heat exchange in the battery.

  As a structure for sucking air from the passenger compartment in this way, Japanese Patent Laid-Open No. 2001-233304 (Patent Document 1) improves the suction port for sending cooling air to the on-board high-voltage battery, and the suction port is blocked by luggage or the like. Disclosed is a cooling air intake structure for a high-pressure battery that does not come off and prevents the air intake sound from the intake port from being felt by an occupant. This cooling air intake structure is an air intake structure that cools a high-pressure battery that is housed in a battery case, covered with a cover, and installed below the rear seat in the passenger compartment. The cooling air intake structure forms an air path by providing a gap extending in the vehicle width direction between the lower surface front end portion of the rear seat and the upper surface front end portion of the cover facing the rear seat. In the air path, a cover is provided with a suction port, and the suction port and the battery case are connected and communicated with each other through a suction duct. An exhaust duct that passes through the cover and communicates with the outside of the vehicle is connected to the opposite side of the battery case from the intake duct. A fan that sucks cooling air into the suction port is provided in either the intake duct or the exhaust duct.

According to this cooling air intake structure, when the temperature of the high-voltage battery rises, the cooling air in the vehicle compartment can be taken into the intake port from the entire air path formed in the vehicle width direction at the lower front end of the rear seat. At this time, even if there is a baggage or the like at a part of the front end portion of the rear seat, the suction port is never blocked.
Japanese Patent Laid-Open No. 2001-233064

  However, the cooling air intake structure disclosed in Patent Document 1 does not disclose the specific shape of the intake port. For example, when the shape of the air inlet provided in the passenger compartment is formed by providing lattice-like fins, there are the following problems. When inhaling air, an air flow is generated in the lattice-like fins. Therefore, there is a problem that the generated air current causes noise in the passenger compartment. In addition, in the battery, there is a problem that high-frequency sound generated in association with charging / discharging of the battery leaks from the intake port into the passenger compartment through the cooling air passage to generate noise. Further, unlike air outlets for blowing air from an air conditioner or the like, there is a problem in that the air intake that sucks in air in the passenger compartment deteriorates the merchantability from the viewpoint of the appearance of the interior if it stands out in the passenger compartment. And if the shape of the air inlet is formed by the lattice fins, the opening is exposed in the room, so that water can easily enter from the air inlet when the car is spilled or washed indoors. There's a problem.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an intake structure that prevents noise and water from entering, and is inconspicuous from the room.

  An air intake structure according to a first aspect of the present invention is an air intake structure of a cooling air passage provided in a vehicle interior. The air inlet structure includes a frame provided at the opening of the cooling air passage, a plate-like member that is provided on the indoor side of the opening, covers a part of the opening, and is provided in the frame. And a support member that supports the plate-like member while ensuring.

  According to the first invention, the air intake structure provided in the interior of the vehicle includes a frame provided in the opening of the cooling air passage, and a plate-like member provided on the indoor side of the opening and covering a part of the opening. And a support member (for example, a fin portion) that is provided on the frame and supports the plate-like member while ensuring a cooling air flow path. Thereby, since a plate-shaped member covers an opening part, it can be set as the structure where water cannot enter easily from an inlet port. In addition, the number of fin portions that support the plate-like member provided in the opening can be smaller than the number of fin portions in the shape of the air intake port in which the lattice-like fin portions are provided. Therefore, it is possible to reduce the generation of noise due to the airflow generated in the fin portion. In addition, even if high-frequency sound generated due to battery charging / discharging or power conversion by the inverter is transmitted to the opening through the cooling air passage, the high-frequency sound is shielded by the plate-like member provided in the opening, and the vehicle Sound leakage into the room can be prevented. Furthermore, if a sound absorbing material is disposed behind the plate-like member (on the cooling air passage side), sound leakage into the room can be further prevented. When the shape of the plate member is increased or the fin portion and the opening are hidden from the room by providing the center of the plate member at a position shifted from the center of the opening, the room The air intake can be made inconspicuous. Further, if the plate-like member has the same color as the frame or the same color as the interior color of the room, the air inlet can be made less noticeable in the room. Therefore, the appearance of the air intake from the room is improved, and the merchantability is improved. Therefore, it is possible to provide an intake structure that prevents noise and water from entering and is inconspicuous from the room.

  In the air intake structure according to the second invention, in addition to the configuration of the first invention, the plate-like member is provided so as to protrude inward from the frame.

  According to the second invention, the plate-like member is provided so as to protrude indoors from the frame. Thereby, for example, even if a load or the like is placed in front of the plate-like member, air can be sucked from four directions between the plate-like member and the frame. Therefore, even if a load is placed in front of the air intake port, the air can be taken in without being blocked.

  In the air inlet structure according to the third invention, in addition to the configuration of the first or second invention, the plate-like member has a shape such that the support member is hidden from the room.

  According to the third invention, the plate-like member has such a shape that the support member (for example, the fin portion) is hidden from the room. By making the shape of the plate-like member such that the fin portion is hidden from the room, the air inlet can be made inconspicuous in the room. Therefore, the appearance of the air intake port is improved from the inside of the room, and the commercial property is improved.

  In the air intake structure according to the fourth invention, in addition to the configuration of any one of the first to third inventions, the air intake structure is provided in a cooling air passage through which air for cooling the power storage mechanism mounted on the vehicle flows. Provided.

  According to the fourth invention, the air inlet structure is provided in the cooling air passage through which the air for cooling the power storage mechanism (for example, battery) mounted on the vehicle flows. As a result, even if the high-frequency sound generated due to charging / discharging of the battery or power conversion by the inverter is transmitted to the opening through the cooling air passage, the sound into the vehicle compartment is provided by the plate-like member provided in the opening. Leakage can be prevented.

  In the intake port structure according to the fifth invention, in addition to the configuration of any one of the first to fourth inventions, the intake port structure is provided in any one of the hybrid vehicle, the electric vehicle, and the fuel cell vehicle.

  According to the fifth invention, the generation of noise and the entry of water can be prevented, and the air intake structure that is not conspicuous from the room can be applied to any one of the hybrid vehicle, the electric vehicle, and the fuel cell vehicle.

  Hereinafter, an air inlet structure according to an embodiment of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  The air intake structure according to the present embodiment is applied to the air intake of the battery cooling device, but is not particularly limited as long as it is an air intake provided in the vehicle interior. The intake port structure according to the present embodiment can be applied to, for example, a hybrid vehicle, an electric vehicle, and a fuel cell vehicle on which a battery cooling device is mounted. Furthermore, it can be applied to cooling of not only a battery but also a power storage unit such as a capacitor, a PCU (Power Control Unit) such as a motor, a motor generator or an inverter, and a converter.

  As shown in FIG. 1, intake 100 according to the present embodiment is provided at a position on the outer side in the vehicle width direction of rear seat 102. However, the position where the air inlet 100 is provided is not particularly limited. For example, the air inlet 100 may be provided in a lower portion of the rear seat 102 or may be provided in a package tray that covers an upper portion of a cargo compartment located behind the rear seat 102.

  A battery (not shown) is provided below the rear seat 102 or between the rear seat 102 and the above-described luggage compartment. The battery is provided with a cooling device that allows the battery to be in a predetermined temperature range. When the present invention is applied to a battery, it is not particularly limited as long as it is a secondary battery. In the present embodiment, for example, a plurality of cells are connected in series to form a battery module. The battery module is constituted by an assembled battery in which a plurality of battery modules are connected in series.

  Hereinafter, the cooling device for cooling the battery will be described in detail with reference to FIG. As shown in FIG. 2, the cooling device according to the present embodiment includes a cooling air passage (1) 110, a cooling fan 104, a cooling air passage (2) 112, a cooling air passage (3) 114, and a battery. 106.

  An opening 108 on the intake side of the cooling air passage (1) is connected to the intake port 100. The cooling air passage (1) 110 is a passage connected to the passenger compartment. The cooling air passage (1) 110 is connected to the cooling fan 104. The cooling fan 104 is configured by fixing rotating blades to a rotating shaft of a rotating electrical machine (not shown) provided inside. The rotating electrical machine rotates upon receiving power. And a wind force arises because a rotary blade rotates. This wind force creates an air flow from the passenger compartment through the opening 108 to the battery 106.

  The cooling fan 104 is connected to the cooling air passage (2) 112. The cooling air passage (2) 112 is connected to the upper part of the side surface of the battery 106. The cooling air generated by the cooling fan 104 reaches the upper part of the side surface of the battery 106 through the cooling air passage (2) 112. The cooling air flowing into the housing of the battery 106 passes through a battery module (not shown) provided inside the battery 106. At this time, heat exchange is performed between the cooling air and the battery module. The cooling air is introduced from the upper part of the side surface of the battery 106 and then flows from the upper part to the lower part of the battery module. Thereby, the battery module is cooled.

  The cooling air passage (3) 114 is connected to the lower part of the side surface of the battery 106. The cooling air passage (3) is connected to the outside of the vehicle and the inside of the trunk room. That is, the air exchanged with the battery 106 passes through the cooling air passage (3) 114. Then, the air is discharged outside the vehicle, and a part of the air is discharged into the trunk room.

  As shown in FIG. 3, the structure of the intake port 100 according to the present embodiment includes a frame 208, fin portions 204 and 206, and a shielding plate 202. The frame 208 is connected to the opening 108 in the battery cooling device described above. A fin portion 206 is provided in the longitudinal direction of the frame 208. A fin portion 204 is provided in a direction orthogonal to the longitudinal direction of the frame 208. The fin portions 204 and 206 support the shielding plate 202 while ensuring a cooling air flow path. The number of fin portions 204 and 206 is not particularly limited as long as the supporting rigidity for supporting the shielding plate 202 can be secured.

  The shielding plate 202 is formed of a substantially plate-like member that covers a part of the opening 108. In this embodiment, the shielding plate 202 is provided so that the center of the substantially plate-like member coincides with the center of the opening 108, but is not particularly limited. The shielding plate 202 is preferably formed by molding a resin that does not have water permeability and is excellent in sound absorption.

  FIG. 4 is a diagram showing a 4-4 cross section in FIG. 3 in a direction orthogonal to the longitudinal direction of the frame 208 and passing through the center of the frame 208. FIG. 5 is a view showing a 5-5 cross section passing through the center of the frame 208 in the longitudinal direction of the frame 208 in FIG. 3. As shown in FIGS. 4 and 5, the shielding plate 202 is provided so as to protrude from the frame 208 to the indoor side.

  The operation of the inlet structure according to the present embodiment based on the above structure will be described.

  When the cooling fan 104 of the battery cooling device is activated, an air flow from the passenger compartment to the battery 106 is formed. At this time, air is sucked into the opening 108 from the four directions between the shielding plate 202 and the frame 208 at the air inlet 100 as indicated by arrows shown in FIGS. 4 and 5. At this time, since the shielding plate 202 is provided so as to protrude to the indoor side from the frame 208, for example, even if a load or the like is placed in front of the shielding plate 202, the air from four directions is formed between the shielding plate 202 and the frame. Inhale. Therefore, even if a load is placed in front of the air inlet 100 (inside the room), the air can be taken in without being blocked.

  In addition, a high directivity of about 10 kHz is generated along with charging / discharging of the battery 106 and power conversion by an inverter (not shown). Even if the high frequency sound based on this high frequency is transmitted from the cooling air passage to the opening 108, the shielding plate 202 blocks and prevents high frequency sound from leaking into the room.

  As described above, according to the intake port structure according to the present embodiment, the intake port structure provided in the vehicle interior is provided on the indoor side with respect to the frame provided in the opening of the cooling air passage and the opening. It includes a shielding plate that covers a part of the opening, and a fin portion that is provided on the frame and supports the shielding plate. Thereby, since a shielding board covers an opening part, it can be set as the structure where water cannot enter easily from an inlet port. Moreover, the fin part which supports the shielding board provided in an opening part can be less than the fin part in the shape of the inlet port in which a grid | lattice-like fin part is provided. Therefore, it is possible to reduce the generation of noise due to the airflow generated in the fin portion. In addition, high-frequency sound generated due to battery charging / discharging or power conversion by the inverter is transmitted to the opening through the cooling air passage, but the high-frequency sound is shielded by the shielding plate provided in the opening, Sound leakage into the room can be prevented. Furthermore, if a sound absorbing material is disposed behind the shielding plate (on the cooling air passage side), sound leakage into the room can be further prevented.

  Then, if the shape of the shielding plate is increased or the fin portion and the opening are hidden from the room by providing the shielding plate at a position shifted from the center of the opening, the intake air is taken into the room. The mouth can be made inconspicuous. Further, if the shielding plate has the same color as the frame or the same color as the interior color of the room, the air inlet can be made less noticeable in the room. Therefore, the appearance of the air intake from the room is improved, and the merchantability is improved. Therefore, it is possible to provide an intake structure that prevents noise and water from entering and is inconspicuous from the room.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a figure which shows the external appearance of the rear seat provided with the inlet structure which concerns on this Embodiment. It is a figure which shows the external appearance of the cooling device of the battery connected to the inlet structure which concerns on this Embodiment. It is a figure which shows the external appearance of the inlet structure which concerns on this Embodiment. It is a figure which shows 4-4 cross section of FIG. It is a figure which shows the 5-5 cross section of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 Air inlet, 102 Rear seat, 104 Cooling fan, 106 Battery, 108 Opening part, 110,112,114 Cooling air path, 202 Shielding plate, 204,206 Fin part, 208 Frame.

Claims (5)

A cooling air passage inlet structure provided in a vehicle interior,
The inlet structure is
A frame provided at an opening of the cooling air passage;
A plate-like member that is provided on the indoor side of the opening and covers a part of the opening;
An air intake structure including a support member provided on the frame and supporting the plate-like member while securing a flow path for the cooling air.   The air intake structure according to claim 1, wherein the plate-like member is provided so as to protrude toward the indoor side from the frame.   The air intake structure according to claim 1 or 2, wherein the plate-like member has a shape such that the support member is hidden from the room.   The air intake structure according to any one of claims 1 to 3, wherein the air intake structure is provided in a cooling air passage through which air for cooling a power storage mechanism mounted on the vehicle flows.   The inlet structure according to any one of claims 1 to 4, wherein the inlet structure is provided in any one of a hybrid vehicle, an electric vehicle, and a fuel cell vehicle.

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