JP2019104321A - Cooling duct - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress an increase in the number of parts of a cooling duct. SOLUTION: A first intake port 21 for introducing air into a cooling duct 20 and a second intake port 22 are formed on different surfaces, and the cooling duct 20 is formed on a first intake port 21 and a second intake port 21. A filter 30 is provided at a confluence portion 29 where the air flowing in from each of the intake ports 22 of the above is merging. [Selection diagram] Fig. 2

Description

  The present disclosure relates to a cooling duct for passing air for cooling a battery mounted on a vehicle.

  Japanese Patent Laid-Open No. 2006-188182 (Patent Document 1), for example, discloses a configuration in which intake ducts that allow air to flow through a cooling fan are connected to a plurality of intake ports provided at different locations in a vehicle interior. ing.

JP, 2006-188182, A

  Foreign matter may be mixed with air into the cooling duct from the air intake. When the cooling duct has a plurality of air inlets, it is necessary to provide a filter for removing foreign matter in each air inlet, so the number of parts increases.

  The present disclosure provides a cooling duct that can suppress an increase in the number of parts.

  According to the present disclosure, a cooling duct for passing air for cooling a battery mounted on a vehicle is provided. The cooling duct comprises first and second air inlets for introducing air into the cooling duct, and a filter. The first and second air inlets are provided below a seating surface of a seat on which a vehicle occupant sits. The first and second air inlets are formed in different planes. The filter is disposed at a junction where the air flowing from each of the plurality of intake ports merges.

  According to the configuration, it is possible to suppress an increase in the number of parts because foreign matter is prevented from being mixed by one filter.

  According to the present disclosure, an increase in the number of parts of the cooling duct can be suppressed.

It is a perspective view of a seat. It is sectional drawing of a cooling duct.

  The cooling duct 20 according to the embodiment will be described below based on the drawings. In the embodiments described below, the same or substantially the same configurations are denoted by the same reference numerals, and redundant description will not be repeated.

  FIG. 1 is a perspective view of a seat 1. The seat 1 of the embodiment is mounted on a vehicle. The vehicle may be a hybrid vehicle capable of traveling using power of at least one of a motor and an engine, or an electric vehicle traveling with a driving force obtained by electrical energy.

  A seat 1 shown in FIG. 1 is for a passenger of a vehicle to be seated. The seat 1 is, for example, a rear seat disposed at the rear of the vehicle. The seat 1 includes a seat cushion 10 having a seating surface 11 on which the occupant sits, a seat back (not shown) for supporting the back (upper body) of the occupant seated on the seating surface 11, and a headrest supporting the head of the occupant. And (not shown).

  The seat cushion 10 has a side surface 12. The side surface 12 has a curved portion 13 at the left front corner.

  In the embodiment, the longitudinal direction, the lateral direction, and the vertical direction mean the longitudinal direction, the lateral direction, and the vertical direction as viewed from the occupant seated on the seat 1. The Fr direction indicated by the arrow in FIG. 1 is the front-rear direction, the LH direction is the left-right direction, and the UPR direction is the up-down direction. The front-rear direction is the direction in which the vehicle travels straight. The left and right direction is the width direction of the vehicle.

  The cooling duct 20 of the embodiment is provided inside the seat cushion 10 of the seat 1 and is therefore disposed below the seating surface 11. The cooling duct 20 has a first air inlet 21 and a second air inlet 22 for introducing air in the vehicle compartment into the cooling duct 20. The first air inlet 21 and the second air inlet 22 are provided with grid-like guards (not shown) for preventing foreign matter from entering the cooling duct 20.

  A partition 26 is provided between the first air inlet 21 and the second air inlet 22. The first intake port 21 and the second intake port 22 are separated from each other by the partition portion 26 in the vertical direction. A first intake port 21 is formed above the partition portion 26, and a second intake port 22 is formed below the partition portion 26. The second intake port 22 is disposed below the first intake port 21.

  The first air inlet 21 is open at the curved portion 13 of the side surface 12 of the seat cushion 10. The second air inlet 22 is open at a position below the seat cushion 10. The second air inlet 22 is opened rearward of the front surface of the seat cushion 10. The first intake port 21 opens larger than the second intake port 22. The first intake port 21 having a relatively large opening area can be referred to as a main intake port, and the second intake port 22 can be referred to as a sub intake port.

  The second intake port 22 is formed on a plane that intersects, typically, is orthogonal to the front-rear direction. The first air inlet 21 is formed on a surface that curves in the front-rear direction and the left-right direction, so the first air inlet 21 is also curved. The first air inlet 21 and the second air inlet 22 are formed on different surfaces. The second air intake port 22 has a portion projecting with respect to the surface of the seat cushion 10 in which the first air intake port 21 is open and a portion which retracts with respect to the surface of the seat cushion 10.

  The battery cooled by the cooling air passing through the cooling duct 20 according to the embodiment is mounted on a vehicle, and is disposed, for example, at the rear of the seat 1. The cooling duct 20 of the embodiment is a vehicle-mounted battery cooling duct.

  FIG. 2 is a cross-sectional view of the cooling duct 20. As shown in FIG. As shown in FIG. 2, the cooling duct 20 has a ceiling surface 24 and a floor surface 25. The first intake port 21 is disposed closer to the ceiling surface 24 in the vertical direction. The second intake port 22 is disposed closer to the floor surface 25 in the vertical direction. The first intake port 21 is disposed closer to the ceiling surface 24 than the second intake port 22 and away from the floor surface 25. The second intake port 22 is disposed closer to the floor surface 25 than the first intake port 21 and away from the ceiling surface 24.

  The air flowing into the cooling duct 20 from the first air inlet 21 flows substantially from the front to the rear. Air flowing into the cooling duct 20 from the second air inlet 22 flows substantially from the front to the rear. The flow directions of air flowing into the cooling duct 20 via the first inlet 21 and the second inlet 22 are substantially the same. The cooling duct 20 has a merging portion 29 downstream of the first air inlet 21 and the second air inlet 22 in the air flow direction. The air flowing into the cooling duct 20 from the first air inlet 21 and the air flowing into the cooling duct 20 from the second air inlet 22 merge at the merging portion 29.

  A filter 30 is disposed at the merging portion 29. The filter 30 is disposed in the filter cooling duct 20 along a plane perpendicular to the air flow direction. The filter 30 is disposed from the floor surface 25 to the ceiling surface 24 of the cooling duct 20 and from one to the other of the pair of side surfaces of the cooling duct 20. Filter 30 is configured such that all of the air passing through cooling duct 20 passes through filter 30.

  The cooling duct 20 according to the embodiment described above, as shown in FIGS. 1 and 2, includes the first air inlet 21 and the second air inlet 22 for introducing air into the cooling duct 20, We prepare for each different side. Since a plurality of intake ports are provided on different surfaces, even if one intake port is blocked, air can be sucked into the cooling duct 20 by the other intake port.

  For example, as shown in FIG. 2, when the first air intake 21 is closed by the seat cover 70 by covering the seat cushion 10 with the seat cover 70, the second air intake 22 is covered with the seat cover 70. The second inlet 22 is open. Therefore, air can be drawn into the cooling duct 20 from the second air inlet 22. By configuring the second air intake port 22 so as to be able to suck in air above the minimum amount of air necessary for cooling the battery, it is possible to suppress a decrease in the cooling efficiency of the battery.

  Even if an event occurs in which the front surface of the seat cushion 10 is covered with a load or a sheet of paper or cloth adheres to the front surface of the seat cushion 10, in this case, it opens in the front surface of the first air inlet 21 Although a portion and the second air inlet 22 are closed, the side opening of the first air inlet 21 is not closed but remains open. Therefore, air can be drawn into the cooling duct 20 from the open portion of the first air inlet 21.

  As shown in FIG. 2, the cooling duct 20 includes a filter 30. The filter 30 is disposed at a merging portion 29 where the air flowing from each of the first inlet 21 and the second inlet 22 merges. The air flowing into the cooling duct 20 from the first air inlet 21 and the air flowing into the cooling duct 20 from the second air inlet 22 join in front of the filter 30 and pass through the common filter 30. Flow. Since it is the structure which prevents mixing of the foreign material from the some inlet port by one filter 30, the increase in the number of parts of the cooling duct 20 can be suppressed.

  As shown in FIG. 2, the filter 30 has an area larger than the sum of the opening areas of the first inlet 21 and the second inlet 22. The filter 30 is disposed at a position where the cross-sectional area of the cooling duct 20 is relatively large after the air flowing from each of the first air inlet 21 and the second air inlet 22 merges. By increasing the area of the filter 30 to reduce the flow velocity of air passing through the filter 30, the pressure loss of air passing through the filter 30 can be reduced.

  When filters are provided separately for the first intake port 21 and the second intake port 22, the filter corresponding to the sub intake port (second intake port 22) having a relatively small opening area is blocked. It is prone to occur and reduces the life of the filter, thus requiring frequent maintenance of the filter. On the other hand, if the filter 30 according to the embodiment is provided, the filter 30 can be extended in life and the maintenance frequency of the filter 30 can be reduced because the time until the filter 30 with a large area is blocked is long. As a result, maintenance costs can be reduced and usability can be improved.

  As shown in FIG. 2, when the first air inlet 21 is covered by the seat cover 70, the air flows into the cooling duct 20 mainly because the air flows into the cooling duct 20 from the second air inlet 22. Is biased to the bottom of the cooling duct 20. When the air reaches the filter 30, the air flow is rectified by the filter 30. The deviation of the flow rate in the vertical direction of the air passing through the filter 30 is reduced, and the uniformity of the flow rate of air in the cooling duct 20 is improved. As a result, it is possible to avoid that a part of the filter 30 is locally blocked to be a factor determining the life of the filter 30, and the life of the filter 30 can be extended.

  When the lower part of the filter 30 starts to be clogged due to the air flow flowing in from the second air inlet 22, the air flows around the top of the filter 30 and the filter 30 because the area of the filter 30 is large. It is possible to flow through. Therefore, the long life of the filter 30 can be reliably realized.

  It should be understood that the embodiments disclosed herein are illustrative in all respects and not restrictive. The scope of the present invention is shown not by the above description but by the scope of claims, and is intended to include meanings equivalent to the scope of claims and all modifications within the scope.

  DESCRIPTION OF SYMBOLS 1 seat seat, 10 seat cushion, 11 seating surface, 12 side surface, 13 curved part, 20 cooling duct, 21 first intake port, 22 second intake port, 24 ceiling surface, 25 floor surface, 26 partition section, 29 Merger, 30 filters, 70 seat covers.

Claims (1)

A cooling duct for passing air for cooling a battery mounted on a vehicle,
A first air inlet and a second air inlet for introducing air into the cooling duct are provided below a seating surface of a seat on which an occupant of the vehicle is seated, the first air inlet and the second air inlet They are formed on different planes from the 2 intake ports,
A cooling duct, comprising: a filter disposed at a merging portion where air flowing from each of the first air inlet and the second air inlet merges.

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