JP5099708B2 - Cooling air intake part structure for in-vehicle heating parts - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a cooling air intake portion structure for an in-vehicle heating component, and more specifically, a cooling air intake portion structure for an in-vehicle heating component effective for taking in cooling air from a battery applied to a vehicle such as a hybrid vehicle. About.

  For example, in a hybrid vehicle, a battery as a driving energy source is mounted in a luggage space on the rear side of a rear seat or under the floor thereof. In this case, since the battery is a heat generating component, it is necessary to cool the battery. Conventionally, a method has been devised in which air in the vehicle compartment is taken in and supplied to the battery as cooling air by a cooling fan (for example, (See Patent Documents 1 and 2.)

  FIG. 11 is a configuration diagram of the battery cooling system described in Patent Document 1. In this electric vehicle, a battery pack 104 is mounted in a luggage space 103 on the rear side of the rear seat 101. In order to supply vehicle interior air as cooling air to the battery pack 104, a cold air passage of the battery pack 104 is provided. Inlet and exhaust side ducts 110 and 111 are disposed upstream and downstream, and a cooling fan 112 is interposed in the intake side duct 110. In this case, the intake port 113 of the duct 110 on the intake side opens to the side of the seat back 102 of the rear seat 101, and air in the vehicle compartment can be taken in from the intake port 113.

  Moreover, in the battery cooling system described in Patent Document 2, the quietness in the vehicle interior is improved by interposing a cooling fan downstream of the battery in the duct that sends cooling air to the battery.

  By the way, in an automobile, it is often performed to extend the luggage room by tilting the seat back of the rear seat forward. In that case, a striker for fixing the seat back in an upright state is attached in a form protruding from the inner side of the vehicle body panel. However, as described above, if the air inlet of the duct is opened to the side of the seat back of the rear seat, the duct and the striker may interfere with each other. Therefore, conventionally, the duct is provided with a notch-shaped relief portion continuous from the air inlet, thereby avoiding interference with the striker.

JP 2004-1683 A JP-A-2005-324771

  As described above, the duct is conventionally provided with an escape portion that avoids interference with the striker, but air is sucked from the escape portion (hereinafter referred to as “air leakage”), and the vehicle is efficiently There was a problem that room air could not be taken into the duct as cooling air. In particular, when a cooling fan is installed on the upstream side of the battery, the effect of air leakage does not increase. However, when a cooling fan is installed on the downstream side of the battery, if there is air leakage in the duct, the intake efficiency will deteriorate, and therefore cooling will occur. There was a problem that the fan air volume had to be increased to maintain efficiency.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to prevent the air leakage of the duct and to maintain the necessary cooling efficiency without increasing the fan air volume. An object of the present invention is to provide a cooling air intake portion structure for a part.

In order to achieve the above object, the invention described in claim 1
A duct that circulates air in the passenger compartment as cooling air in order to cool a heat generating component (for example, a battery module 22 in the embodiment described later) disposed behind the seat (for example, a rear seat 7 in the embodiment described later). (For example, the intake-side duct 30 and the exhaust-side duct 40 in the embodiment described later),
A cooling fan (for example, a cooling fan 41 in an embodiment described later) connected to the duct;
A vehicle body panel (e.g., an embodiment described later) positioned on the side of the seatback in the standing state to fix the retractable seat back of the seat (e.g., the seat back 10 in the embodiment described later) in the standing state. A striker (for example, a striker 50 in an embodiment described later) protruding from the side panel 12)
With
An intake port of the duct (for example, an intake port 31 in an embodiment described later) is disposed between the seat back in the standing state and the vehicle body panel,
In the cooling air intake part structure to the vehicle-mounted heat generating component that extends to a position where the striker passes through the duct and engages with a lock member on the seat back side (for example, a lock fitting 11 in an embodiment described later),
A pair of through holes (for example, penetrations in the embodiments described later) through which the striker penetrates on both side walls (for example, both side walls 33 and 34 in the embodiments described later) of the duct, which are rearward of the intake port. Holes 35, 36) are formed,
A seal member (for example, a seal member 60 in an embodiment described later) that blocks the gap between the through hole and the striker from the inside of the duct through which the cooling air flows is attached to the through hole. It is characterized by.

In addition to the configuration of the invention described in claim 1, the invention described in claim 2
The seal member has a cylindrical portion (for example, a cylindrical portion 61 in an embodiment described later) that connects the side walls, and is fitted into the pair of through holes at both ends of the cylindrical portion. A pair of fitting parts (for example, fitting parts 63 and 64 in the embodiments described later) are formed.

The invention according to claim 3
A duct that circulates the air in the passenger compartment as cooling air in order to cool the heat-generating components disposed behind the seat;
A cooling fan connected to the duct;
A striker projecting from a vehicle body panel located on a side of the seat back in the standing state to fix the retractable seat back of the seat in a standing state;
With
The air inlet of the duct is disposed between the standing seat back and the vehicle body panel,
In the cooling air intake part structure to the vehicle-mounted heat generating component that extends to a position where the striker passes through the duct and engages with the lock member on the seat back side,
A pair of through holes through which the striker passes are formed on both side walls of the duct facing each other behind the intake port,
The duct has a cylindrical portion (for example, a cylindrical portion 80 in an embodiment described later) that connects the pair of through holes.

In addition to the configuration of the invention described in claim 2 or 3, the invention described in claim 4
The air inlet of the duct is formed in a substantially rectangular shape whose long side is constituted by the side walls,
The cylindrical portion is formed in a flat shape having a pair of flat surfaces (for example, a flat surface 61a in an embodiment described later), and is arranged so that the flat surface is along a direction substantially orthogonal to the long side. It is characterized by being.

In addition to the structure of the invention described in claim 4, the invention described in claim 5
The cylindrical portion is disposed in a middle portion in the longitudinal direction of the substantially rectangular intake port,
In front of the substantially rectangular intake port, a substantially rectangular shape corresponding to the intake port formed by a number of intake holes (for example, intake holes 71 in the embodiments described later) is formed, and the middle in the longitudinal direction thereof An intake grille (for example, an intake grille 70 in an embodiment described later) in which a partition portion (for example, a partition portion 73 in an embodiment described later) is formed is disposed at a position,
The partition portion and the cylindrical portion of the intake grill overlap when viewed from the substantially orthogonal direction.

In addition to the structure of the invention in any one of Claims 1-5, the invention of Claim 6 is
The heat generating component is a battery;
The cooling fan is connected to the duct on the downstream side of the battery.

  According to the first aspect of the present invention, the air leakage of the duct can be prevented by the seal member, and the necessary cooling efficiency can be maintained without increasing the fan air volume.

  According to the invention of claim 2, the cylindrical portion of the seal member can prevent deformation of both side walls of the duct, in particular, warpage to the inside, thereby ensuring the intake area of the duct.

  According to the invention of claim 3, air leakage can be prevented by the cylindrical portion of the duct, and the necessary cooling efficiency can be maintained without increasing the number of components and without increasing the fan air volume. it can.

  According to invention of Claim 4, a cylinder part can exhibit the rectification effect, without preventing the flow of cooling air.

  According to the fifth aspect of the present invention, it is possible to reduce the intake resistance due to the partition portion between the cylinder portion and the intake grille, and to effectively prevent the inner warp of the duct by the reinforcing effect by the partition portion between the cylinder portion and the intake grille. Can do.

  According to the sixth aspect of the present invention, it is possible to suppress the sound of the cooling fan and the sound of the airflow from leaking into the vehicle interior, and the quietness of the vehicle interior can be improved.

  Hereinafter, each embodiment of the cooling air intake part structure to the vehicle-mounted heat generating component according to the present invention will be described in detail based on the drawings. The drawings are viewed in the direction of the reference numerals.

<First Embodiment>
A vehicle 1 according to the present embodiment shown in FIG. 1 includes a power unit 3 in which an engine and a motor generator are provided in series, assists driving the engine with the motor generator, and collects electric power from the motor generator when the vehicle is decelerated. It is a possible hybrid car. The motor generator is, for example, a three-phase AC motor, and the driving force of the engine and the motor generator is transmitted to the front wheels 4 that are driving wheels.

  Further, when the driving force is transmitted from the front wheels 4 to the motor generator when the vehicle 1 is decelerated, the motor generator functions as a generator to generate a so-called regenerative braking force, and the kinetic energy of the vehicle is recovered as electric energy. Is done. The recovered electrical energy is charged to the energy storage via the power converter.

  In this vehicle 1, a luggage space 8 is provided behind the rear seat 7, and an electrical component connected to the power unit 3 via a power cable 11 laid under the floor 9 below the floor of the luggage space 8. A box 20 is arranged.

  In the electrical component box 20, as shown in FIG. 2, a battery module (battery) 22 as an energy storage and an electrical component 23 such as an inverter unit as a power converter are accommodated in a box-shaped electrical case 21. ing.

  At the front upper part of the electrical case 21, there are a resin-made intake side duct 30 and an exhaust side duct 40 for circulating the air in the passenger compartment as cooling air in order to cool the battery 22 and the electrical part 23 as heat generating parts. Is provided. The intake side duct 30 is connected to the upstream side of the cold air passage of the electrical component box 20, and the exhaust side duct 40 is connected to the downstream side of the cold air passage of the electrical component box 20. A cooling fan 41 for allowing cooling air to flow through the ducts 30 and 40 is connected to an end portion of the duct 40 on the exhaust side.

  The rear seat 7 includes a retractable seat back 10 that rotates as indicated by an arrow A in FIG. As shown in FIG. 3, a lock fitting 11 on the side of the seat back 10 (see FIG. 6) is attached to the side panel 12 positioned on the side of the seat back 10 in the standing state in order to fix the seat back 10 in the standing state. )) And a striker 50 that can be engaged is projected toward the inner side in the vehicle width direction. In addition, as shown in FIG. 5, the striker 50 fixes the base portion of the main body 51 having a U-shaped tip to the bracket 13 on the side panel side via the base member 52.

  As shown in FIG. 2 to FIG. 4, the duct 30 on the intake side extends outward in the vehicle width direction under the floor of the luggage space 8, further extends upward, and an intake port 31 provided at the tip thereof is provided in the vehicle interior. It arrange | positions between the side part of the seat back 10 of the standing state, and the inner side part of the side panel 12 so that air may be taken in. The air inlet 31 of the duct 30 is formed in a substantially rectangular shape whose longitudinal direction is the vertical direction, and is opened obliquely so that the long side gradually extends rearward upward.

  Further, as shown in FIG. 3, a side lining 75 is mounted on the side panel 12 so as to follow the shape of the duct 30 on the intake side, and the side lining 75 has a front side of a substantially rectangular intake port 31. Thus, an intake grill 70 having a substantially rectangular shape corresponding to the intake port 31 is formed.

  A large number of intake holes 71 formed in the intake grill 70 are separated by a partition 73 at an intermediate position in the longitudinal direction, and effectively prevent the duct 30 from warping.

  Here, the striker 50 is in a positional relationship that interferes with the intake-side duct 30 disposed at the above position. For this reason, a pair of through holes 35, 36 through which the striker 50 passes are formed on both side walls 33, 34 of the duct 30 facing each other behind and in the vicinity of the intake port 31. Accordingly, the striker 50 passes through the through holes 35 and 36 and passes through the duct 30 and extends to a position where the striker 50 engages with the lock fitting 11 on the seat back 10 side. Therefore, the tip of the striker 50 passes through the hole 76 formed in the side lining 75, and is substantially L-shaped between the one side wall 33 of the duct 30 and the front wall 35 facing the back surface of the seat back 10. It is arranged in the recess of the shape.

  Further, the pair of through holes 35, 36 provided in the both side walls 33, 34 of the duct 30 blocks the gap between the through holes 35, 36 and the striker 50 from the inside of the duct 30 through which cooling air flows. A seal member 60 is attached.

  As shown in FIGS. 4 and 7, the sealing member 60 is formed in a flat shape having a pair of flat surfaces 61 a and is provided at one end of the cylindrical portion 61 and a cylindrical portion 61 that connects the side walls 33 and 34. And an end face portion 62 and a pair of fitting portions 63 and 64 which are provided around both ends of the cylindrical portion 61 and fit into the pair of through holes 35 and 36. Accordingly, the cylindrical portion 61 is closed by the end surface portion 62 at one end side thereof, and is opened at the other end side. The seal member 60 is made of a rubber material and is designed to have a strength that does not deform with respect to the warp of the duct 30.

  The end surface portion 62 is provided with two holes 65 through which the rod-like portion of the main body 51 of the striker 50 passes, and a slit 66 that is continuous with the two holes 65 and through which the tip of the main body 51 can pass. ing. Each of the fitting portions 63 and 64 has a pair of bulging portions 67 and 68 protruding around both ends of the cylindrical portion 61, and the through holes of the side walls 33 and 34 between the bulging portions 67 and 68. By inserting the peripheral edge portions of 35 and 36, the through holes 35 and 36 are fitted. Thereby, the cylinder part 61 is interposed between the both side walls 33 and 34 of the duct 30 at the middle part in the longitudinal direction of the substantially rectangular intake port 31, and air flows between the inside of the cylinder part 61 and the inside of the duct 30. Is prevented.

  Further, as shown in FIG. 8, the pair of through holes 35 and 36 formed in the side walls 33 and 34 are formed along a direction substantially orthogonal to the long side of the intake port 31. Accordingly, the cylindrical portion 61 of the seal member 60 attached to the through holes 35 and 36 is disposed so that the flat surface 61a is along a direction substantially orthogonal to the long side. Therefore, when the air in the passenger compartment is taken in along the direction substantially perpendicular to the intake port 31, the air in the vicinity of the cylinder portion 61 flows in the duct 30 along the flat surface 61a. The rectifying effect can be exhibited without hindering.

  Therefore, according to the cooling air intake portion structure for the in-vehicle heat generating component of this embodiment, the pair of side walls 33 and 34 facing each other of the duct 30 on the intake side are passed through the striker 50 behind the intake port 31. The through-holes 35 and 36 are formed, and a seal member 60 is attached to the through-holes 35 and 36 so as to block the gap between the through-holes 35 and 36 and the striker 50 from the inside of the duct 30 through which cooling air flows. Yes. Thereby, the air leakage of the duct 30 can be prevented by the seal member 60, the necessary cooling efficiency can be maintained without increasing the fan air volume, and foreign matter enters the duct 30 from the through holes 35 and 36. Intrusion can be prevented.

  Further, since the intake side duct 30 is not provided with a large relief shape for avoiding interference with the striker 50, it is only necessary to provide the through holes 35 and 36 on both side walls 33 and 34. Molding is not complicated.

The seal member 60 has a cylindrical portion 61 that connects the side walls 33 and 34, and a pair of fitting portions that fit into the pair of through holes 35 and 36 at both ends of the cylindrical portion 61. 63, 64 are formed. As a result, the cylindrical portion 61 of the seal member 60 prevents deformation of the side walls 33 and 34 of the duct 30, in particular, warpage to the inside, thereby ensuring an intake area. In addition, the pair of fitting portions 63 and 64 can easily attach the seal member 60 to the duct 30, and can reliably close the gap between the duct 30 and the seal member 60.
Moreover, since the cylinder part 61 has covered the circumference | surroundings of the striker 50, compared with the case where the striker 50 is only in the state of being exposed in the duct 30, the rectification effect with respect to the air flow which flows through the inside of the duct 30 Can be demonstrated.

  Further, the intake port 31 of the duct 30 is formed in a substantially rectangular shape having long sides formed by the side walls 33 and 34, and the intake port 31 can be made as wide as possible. Moreover, since the cylindrical part 61 is formed in the flat shape which has a pair of flat surface 61a, and the flat surface 61a is arrange | positioned along the direction substantially orthogonal to a long side, the cylindrical part 61 is cooling air. The rectifying effect can be exhibited without obstructing the flow of.

  Since the cooling fan 41 is connected to the exhaust duct on the downstream side of the battery, the sound of the cooling fan 41 and the sound of the airflow can be prevented from leaking into the vehicle interior. Silence can be improved.

  Further, when the cooling fan 41 is located far from the intake port 31 as described above, if air leakage occurs at the intake port as in the conventional case, the amount of air sucked in the passenger compartment is reduced, and thus the fan air volume is increased. Although measures have been taken, since air leakage is prevented by the seal member 60, the cooling efficiency can be increased without taking such measures.

Second Embodiment
Next, a cooling air intake portion structure for an in-vehicle heating component according to a second embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected about the same or equivalent part as 1st Embodiment, and description is abbreviate | omitted.

  In this embodiment, instead of providing the seal member 60, a cylindrical portion 80 that connects the pair of through holes 35 and 36 is formed by the duct 30 on the intake side. That is, the cylindrical portion 80 of the duct 30 is integrally formed by blow molding of the duct 30 so that both end portions thereof are continuous with the peripheral edges of the pair of through holes 35 and 36, respectively.

  Moreover, this cylinder part 80 is opened in the both ends, and the inside of the cylinder part 80 is spatially partitioned with the inside of the duct 30, and the striker 50 can be inserted therethrough.

Therefore, according to the cooling air intake portion structure for the in-vehicle heat generating component of the present embodiment, air leakage can be prevented by the cylindrical portion 80 of the duct 30, and the fan air volume can be increased without increasing the number of components. Therefore, the required cooling efficiency can be maintained.
In addition, the shape and arrangement | positioning of the cylinder part 80 are the same as that of the cylinder part 61 of the sealing member 60, and there can exist an effect similar to 1st Embodiment.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably.

  For example, as shown in FIG. 10, the partition 73 of the intake grill 70 and the cylinder 61 of the seal member 60 (in the second embodiment, the cylinder 80 of the duct 30) are connected to the long side of the intake 31. If they are arranged so as to overlap when viewed from a substantially orthogonal direction, it is possible to reduce the intake resistance by the partition portions 73 of the cylinder portions 61 and 80 and the intake grille 70, and to achieve a rectifying effect without hindering the flow of cooling air. It can be demonstrated. Further, due to the reinforcing effect of the partition portions 73 of the cylinder portions 61 and 80 and the intake grill 70, the inward warping of the duct 30 can be effectively prevented.

  In the present embodiment, a hybrid vehicle has been described as an applicable vehicle. However, the present invention is not limited to this, and may be, for example, an electric vehicle using only a motor as a drive source.

1 is a schematic side view of a hybrid vehicle to which the present invention is applied. It is the perspective view which looked at the electrical equipment box in the vehicle of FIG. 1 from diagonally behind the luggage space. It is a perspective view of the periphery of the striker to which the rear seat is locked according to the first embodiment of the present invention. FIG. 4 is a perspective view around the air inlet of the duct of FIG. 3 with the side lining removed. It is a top view of the duct. It is the perspective view which showed the state which locked the seat back of the backseat seat to the striker attached to the side panel from the rear side, and showed the duct with the virtual line. (A) is a perspective view which shows the single item of a sealing member, (b) is the side view seen from the opening side. It is a fragmentary sectional view of the duct for explaining the flow of cooling air. It is a perspective view around the inlet of a duct concerning a 2nd embodiment of the present invention. It is a fragmentary sectional view of a duct concerning a modification of the present invention. It is a perspective view which shows schematic structure of the conventional battery cooling system.

Explanation of symbols

7 Rear seat 8 Luggage space 10 Seat back 11 Lock bracket 12 Side panel (body panel)
20 Electrical component box 22 Battery (heat generation component)
30 Intake side duct 31 Intake port 33, 34 Both side walls 35, 36 Through hole 40 Exhaust side duct 41 Cooling fan 50 Striker 60 Seal member 61, 80 Tube portion 63, 64 Fitting portion 70 Intake grill 71 Intake hole 73 Partition Part

Claims (6)

A duct that circulates the air in the passenger compartment as cooling air in order to cool the heat-generating components disposed behind the seat;
A cooling fan connected to the duct;
A striker projecting from a vehicle body panel located on a side of the seat back in the standing state to fix the retractable seat back of the seat in a standing state;
With
The air inlet of the duct is disposed between the standing seat back and the vehicle body panel,
In the cooling air intake part structure to the vehicle-mounted heat generating component that extends to a position where the striker passes through the duct and engages with the lock member on the seat back side,
A pair of through holes through which the striker passes are formed on both side walls of the duct facing each other behind the intake port,
The through-hole is provided with a seal member that shields the gap between the through-hole and the striker from the inside of the duct through which the cooling air flows. Iribe structure.   The seal member has a cylindrical portion that connects the side walls, and a pair of fitting portions that fit into the pair of through holes are formed at both ends of the cylindrical portion. The cooling air intake part structure to the vehicle-mounted heat generating component according to claim 1. A duct that circulates the air in the passenger compartment as cooling air in order to cool the heat-generating components disposed behind the seat;
A cooling fan connected to the duct;
A striker projecting from a vehicle body panel located on a side of the seat back in the standing state to fix the retractable seat back of the seat in a standing state;
With
The air inlet of the duct is disposed between the standing seat back and the vehicle body panel,
In the cooling air intake part structure to the vehicle-mounted heat generating component that extends to a position where the striker passes through the duct and engages with the lock member on the seat back side,
A pair of through holes through which the striker passes are formed on both side walls of the duct facing each other behind the intake port,
The duct has a cylindrical portion that connects between the pair of through holes, and has a cooling air intake portion structure for an in-vehicle heating component. The air inlet of the duct is formed in a substantially rectangular shape whose long side is constituted by the side walls,
The said cylindrical part is formed in the flat shape which has a pair of flat surface, and this flat surface is arrange | positioned so that it may follow the direction substantially orthogonal to the said long side. Cooling air intake part structure for in-vehicle heating parts described in 1. The cylindrical portion is disposed in a middle portion in the longitudinal direction of the substantially rectangular intake port,
In front of the substantially rectangular intake port, there is formed a substantially rectangular shape corresponding to the intake port formed by a large number of intake holes, and a partition that separates the intake hole at an intermediate position in the longitudinal direction thereof. The intake grill
The cooling air intake portion structure according to claim 4, wherein the partition portion and the cylindrical portion of the intake grille overlap when viewed from the substantially orthogonal direction. The heat generating component is a battery;
The cooling air intake portion structure for an in-vehicle heating component according to any one of claims 1 to 5, wherein the cooling fan is connected to the duct at a downstream side of the battery.

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