JP6284028B2 - vehicle - Google Patents

Description

  The present invention relates to a vehicle, and more specifically to a vehicle that warms air in a vehicle interior with a heat medium heated by a heating means such as an electric hot water heater.

  Of the vehicles, particularly in an electric vehicle, the air in the passenger compartment is generally warmed by a heat medium heated by a heating means such as an electric water heater. An electric vehicle has a refrigerant condensation tank (hereinafter referred to as a “low temperature tank”) provided in a refrigerant circulation passage through which a refrigerant for cooling an on-vehicle component circulates, and a heat medium circulation in which a heat medium heated by a heating means circulates. And a heat medium condensation tank (hereinafter referred to as “high temperature tank”) provided in the flow path. A refrigerant having a low temperature flows through the low-temperature tank, and air contained in the refrigerant flowing through the refrigerant circulation passage is separated by the low-temperature tank. Similarly, a heat medium having a high temperature flows through the high temperature tank, and air contained in the heat medium flowing through the heat medium circulation passage is separated by the high temperature tank.

  By the way, an apparatus is known that fixes a low-temperature tank in which a low-temperature refrigerant flows and a high-temperature tank in which a high-temperature heat medium flows side by side. Such an apparatus pays attention to the amount of expansion and deformation of the tank, and does not consider the influence of the air stagnating around the low temperature tank on the refrigerant or the influence of the air flowing around the high temperature tank on the heat medium ( For example, see Patent Document 1).

No. 7-30905

  However, the refrigerant flowing through the low-temperature tank may be warmed by the air stagnating around the low-temperature tank, and the heat medium flowing through the high-temperature tank may be cooled by the air flowing around the high-temperature tank.

  The present invention has been made in view of the above circumstances, and provides a vehicle having an arrangement of these tanks and a tank structure that makes it difficult to heat the refrigerant flowing through the low-temperature tank and makes it difficult to cool the heat medium flowing through the high-temperature tank. The purpose is to do.

  The present invention is a vehicle that warms air in a vehicle interior with a heating medium warmed by a heating means, a refrigerant circulation passage through which a refrigerant for cooling an on-vehicle component circulates, and a refrigerant formed on the refrigerant circulation passage A condensation tank, a heating medium circulation channel through which the heating medium heated by the heating means circulates, and a heating medium condensation tank formed on the heating medium circulation channel, the heating medium condensation tank, The refrigerant condensation tank is juxtaposed in the vehicle longitudinal direction rear side with a space between the refrigerant condensation tank and the heating means is juxtaposed in the vehicle longitudinal direction rear side of the heating medium condensation tank. It is characterized by.

  According to the present invention, air is taken from the front of the vehicle when the electric vehicle is traveling and flows around the refrigerant condensation tank. Thereby, air does not stagnate around the refrigerant condensation tank, and the refrigerant flowing through the refrigerant condensation tank can be hardly warmed. Further, since the heat medium condensation tank and the heating means are arranged in parallel, the heat medium flowing through the heat medium condensation tank can be hardly cooled. Furthermore, since a space is provided between the refrigerant condensation tank and the heat medium condensation tank, heat exchange between the condensation tanks can be prevented.

  In one aspect of the present invention, the heat medium condensation tank and the refrigerant condensation tank are provided integrally.

  In this way, the number of attachment points (fastening points) of the integrated condensation tank (heat medium condensation tank and refrigerant condensation tank) can be reduced.

  In one aspect of the present invention, the integrated condensation tank has a communication hole that communicates between the space and the outside.

  If it does in this way, even if it expands when the air of space is warmed, an integrated condensation tank will not expand.

  In one embodiment of the present invention, the space is a sealed space, and the sealed space is adjusted to a vacuum.

  If it does in this way, the heat insulation of space can be improved.

  In one aspect of the present invention, the integrated condensation tank is provided on the front surface on the refrigerant condensation tank side, and is supported by a cross member member provided in the vehicle width direction in front of the vehicle, and the heat And a bottom mounting portion supported on the vehicle body side below the medium condensation tank side.

  In this way, the integrated condensation tank can be reliably supported, and is supported by the cross member member at the upper part of the refrigerant condensation tank at a relatively high temperature, thereby suppressing the influence of heat transmitted from the cross member member. It is possible to make the refrigerant difficult to warm. In addition, since the heat medium condensation tank is supported on the vehicle body side at a relatively low temperature bottom, heat can be prevented from escaping to the vehicle body side, and the heat medium can be hardly cooled.

  In one aspect of the present invention, the length in the vehicle width direction of the heat medium condensation tank is shorter than the length in the vehicle width direction of the refrigerant condensation tank, and the height of the heat medium condensation tank is equal to that of the refrigerant condensation tank. It is formed lower than the height.

  In this way, since the heat medium condensation tank is hidden behind the refrigerant condensation tank in the vehicle front-rear direction, the heat medium condensation tank does not directly receive the wind received at the front of the vehicle when the vehicle is running. It is difficult to cool the heat medium flowing through the region.

  As described above, according to the present invention, since the heat medium condensation tank and the heating means are arranged in parallel, it is difficult to cool the heat medium flowing through the heat medium condensation tank.

1 is a schematic diagram of an electric vehicle according to an embodiment of the present invention. It is a schematic diagram which shows the cooling water circulation channel through which cooling water flows, and the warm water circulation channel through which warm water flows. It is a top view which shows the periphery layout of the condensation tank provided in the bonnet room of the electric vehicle shown in FIG. It is a front view of the condensation tank shown in FIG. FIG. 4 is a right side view of the condensation tank shown in FIG. 3. FIG. 4 is a rear view of the condensation tank shown in FIG. 3. It is a top view which shows the periphery layout of the condensation tank provided in the bonnet room of the electric vehicle shown in FIG. It is a front view of the condensation tank shown in FIG. It is a right view of the condensation tank shown in FIG. It is a rear view of the condensation tank shown in FIG.

  Hereinafter, preferred embodiments of a vehicle according to the present invention will be described in detail with reference to the accompanying drawings. Here, an electric vehicle will be described as an example, but the present invention is not limited to this embodiment.

  FIG. 1 is a schematic diagram of an electric vehicle according to an embodiment of the present invention.

  As shown in FIG. 1, an electric vehicle 1 according to an embodiment of the present invention is a vehicle that travels using electricity as an energy source and using an electric motor as a power source. The electric vehicle 1 according to the embodiment of the present invention warms the air in the passenger compartment with hot water heated by an electric hot water heater 2, and includes a cooling water circulation channel (refrigerant circulation channel) 3 and a hot water circulation channel (heat). Medium circulation channel) 4 (see FIG. 2).

[Embodiment 1]
FIG. 2 is a schematic diagram showing a cooling water circulation channel through which cooling water flows and a hot water circulation channel through which hot water flows.

  As shown in FIG. 2, the cooling water circulation passage 3 is for cooling in-vehicle components that generate heat such as a micro control unit (MCU) 31, an in-vehicle charger (OBC) 32, an electric motor (motor) 33, and the like. In addition to the micro control unit 31, the on-vehicle charger 32, and the motor 33, a radiator 34, a low-temperature tank (condensation tank) 5, and a water pump 36 are provided. Thereby, the cooling water (refrigerant) flowing through the cooling water circulation passage 3 passes through the low-temperature tank 5 from the radiator 34 and is supplied to the water pump 36. The cooling water pumped up by the water pump 36 is supplied to the micro control unit 31, the on-vehicle unit. The battery flows in the order of the charger 32 and the motor 33 and is returned to the radiator 34.

  The hot water circulation passage 4 is for supplying hot water (heat medium) heated by the electric hot water heater 2 to a heater core 41 provided in an air passage that is blown into the vehicle compartment. In addition, a water pump 42 and a high-temperature tank (condensation tank) 6 are provided. Thereby, the hot water heated by the electric hot water heater 2 is supplied to the heater core 41, and heat is exchanged between the heater core 41 and the air blown into the vehicle interior, and then supplied to the water pump 42. The hot water pumped up by the water pump 42 passes through the high-temperature tank 6 and is returned to the electric hot water heater 2.

  FIG. 3 is a plan view showing the peripheral layout of the condensation tank provided in the hood room of the electric vehicle shown in FIG. 4 to 6 are diagrams showing the condensation tank shown in FIG. 3, wherein FIG. 4 is a front view, FIG. 5 is a right side view, and FIG. 6 is a rear view.

  As shown in FIG. 3, the hood room 11 (see FIG. 1) of the electric vehicle according to Embodiment 1 of the present invention includes a radiator 34 (see FIG. 2) provided in the cooling water circulation passage 3, a low temperature tank 5, In addition to the micro control unit 31, an electric hot water heater 2 and a high temperature tank 6 provided in the hot water circulation channel 4 are installed. These are installed in the order of (1) the radiator 34 and the low temperature tank 5, (2) the high temperature tank 6, (3) the electric hot water heater 2 and the micro control unit 31 from the front to the rear in the vehicle front-rear direction.

  The radiator 34 is for cooling the cooling water circulating through the cooling water circulation passage 3 and has an elongated rectangular parallelepiped shape. In the bonnet room 11, the radiator 34 is disposed at a position facing the front surface of the vehicle along the vehicle width direction. Thereby, the radiator 34 receives the wind taken into the hood room 11 when the electric vehicle 1 travels, and cools the cooling water flowing through the radiator 34.

  The low-temperature tank 5 is for separating the air contained in the cooling water flowing through the cooling water circulation passage 3 and is constituted by a milky white elongated polyethylene container. The low temperature tank 5 is configured by welding the lower half and the upper half, and in the bonnet room 11, the longitudinal direction is installed along the vehicle width direction at a position facing the front of the vehicle. Thereby, the low temperature tank 5 is arranged side by side with the radiator 34 in the vehicle width direction.

  As shown in FIG. 3, the low temperature tank 5 is a rectangular container in plan view, and as shown in FIG. 6, the bottom surface is formed in an arch shape that gradually becomes deeper from the left side in the vehicle width direction to the right side. Further, as shown in FIG. 5, a cooling water inlet 51 is provided in the central region in the height direction of the left side surface of the low temperature tank 5. As shown in FIG. 4, the cooling water inlet 51 is formed in a cylindrical shape protruding leftward from the left side surface, and is connected to the radiator 34 by a hose (not shown). Further, as shown in FIGS. 4 and 6, a cooling water outlet 52 is provided in a lower region in the height direction of the right side surface of the low temperature tank 5. The cooling water outlet 52 is formed in a cylindrical shape protruding rightward from the right side surface, and is connected to the water pump 36 by a hose (not shown). As shown in FIG. 3, a cooling water replenishment port 53 is provided in the upper right region of the low temperature tank 5. The cooling water replenishment port 53 is formed in a cylindrical shape that protrudes upward from the upper surface, and is covered with a cap (lid body) 54. As shown in FIG. 4, mounting brackets (front mounting portions) 55 and 56 are fixed to the upper front area of the low temperature tank 5. The fittings 55 and 56 are for attaching the low temperature tank 5 to the bonnet room 11 (electric vehicle 1), and are formed by cutting a flat steel plate having a uniform thickness into an appropriate shape and bending it appropriately. Specifically, as shown in FIGS. 4 and 5, the portions that become the front plates 551 and 561 are provided along the front surface of the low-temperature tank 5, and the upper ends 552 and 562 thereof are horizontally bent forward in the vehicle front-rear direction. ing. In the low-temperature tank 5 according to the present embodiment, as shown in FIG. 3, the mounting brackets 55 and 56 are fixed to the upper bar (cross member member) 111 constituting the front edge of the bonnet room 11 at two points. It is attached by. Thereby, the cryogenic tank 5 according to the present embodiment is fixed at two points provided on both sides of the front surface.

  The high temperature tank 6 is for separating the air contained in the hot water flowing through the hot water circulation channel 4, and is configured separately from the low temperature tank 5 as shown in FIG. The high temperature tank 6 is composed of a milky white elongated polyethylene container. The high-temperature tank 6 is configured by welding the lower half and the upper half, and is installed at a position in the bonnet room 11 on the rear side in the vehicle front-rear direction of the low-temperature tank 5. Specifically, the longitudinal direction is installed along the vehicle width direction with a space between the low temperature tank 5 and the space. Accordingly, the high temperature tank 6 is parallel to the low temperature tank 5 through the space, and is arranged side by side with the low temperature tank 5 in the vehicle front-rear direction.

  As shown in FIG. 3, the high-temperature tank 6 is a rectangular container in plan view, and as shown in FIGS. 3 and 6, the right side of the upper half is constricted so as to be smaller than the lower half. As shown in FIGS. 5 and 6, a hot water inlet 61 is provided in the central area on the left side of the high temperature tank 6. The hot water inlet 61 is formed in a cylindrical shape protruding leftward from the left side surface, and is connected to the water pump 42 by a hose (not shown). In addition, a hot water outlet 62 is provided in the lower area on the left side of the high temperature tank 6. Similar to the hot water inlet 61, the hot water outlet 62 is formed in a cylindrical shape protruding leftward from the left side surface, and is connected to the electric hot water heater 2 by a hose (not shown). In addition, as shown in FIG. 3, a hot water replenishing port 63 is provided in the central area of the upper surface of the high temperature tank 6. The hot water replenishment port 63 is formed in a cylindrical shape protruding upward from the upper surface, and is covered with a cap (lid body) 64. As shown in FIG. 6, a mounting bracket (rear mounting portion) 65 is fixed to the back surface of the high-temperature tank 6. The mounting bracket 65 is for fixing the back surface of the high-temperature tank 6 to the hood room 11 (electric vehicle 1), and is formed by cutting a flat steel plate having a uniform thickness into an H shape and bending it appropriately. ing. Specifically, as shown in FIGS. 5 and 6, a portion that becomes the back plate 651 is provided along the back surface of the high-temperature tank 6, and upper end portions 652 and 653 on both sides thereof are horizontally bent rearward in the vehicle front-rear direction. Both lower ends 654 and 655 are bent horizontally forward in the vehicle front-rear direction. A mounting bracket 66 is fixed to the bottom surface of the high temperature tank 6. The mounting bracket (bottom mounting portion) 66 is for fixing the bottom surface of the high-temperature tank 6 to the bonnet room 11 (electric vehicle 1), and is formed by appropriately bending a flat steel plate having a uniform thickness. Specifically, as shown in FIGS. 5 and 6, a portion that becomes the bottom plate 661 is provided along the bottom surface of the high-temperature tank 6, and both sides thereof are bent downward to form leg portions 662, and both ends thereof are Each is bent outward in the vehicle width direction to form an attachment portion 663. And the high temperature tank 6 which concerns on this Embodiment fixes the attachment bracket 65 fixed to the back surface to the vehicle body member (not shown) or peripheral device (not shown) provided in the bonnet room 11 at two points. At the same time, the mounting bracket 66 fixed to the bottom surface is fixed to the vehicle body member or peripheral device provided in the bonnet room 11 at two points. Thereby, the high temperature tank 6 which concerns on this Embodiment is fixed by two points | pieces provided in the back both sides, and one point provided in the bottom face.

  As described above, the electric hot water heater 2 is for heating water, and is configured separately from the low temperature tank 5 and the high temperature tank 6 as shown in FIG. The electric hot water heater 2 is configured in a rectangular parallelepiped shape in plan view, and is disposed in the bonnet room 11 at a position on the rear side in the vehicle longitudinal direction of the high temperature tank 6. Specifically, the longitudinal direction is installed along the vehicle width direction with a space between the high temperature tank 6 and the space. Thus, the electric hot water heater 2 is parallel to the high temperature tank 6 through the space, and is arranged side by side with the high temperature tank 6 in the vehicle front-rear direction.

  The micro control unit 31 is for controlling the in-vehicle charger 32 and the motor 33, and is configured separately from the low temperature tank 5, the high temperature tank 6, and the electric hot water heater 2, as shown in FIG. The micro control unit 31 is configured in a rectangular parallelepiped shape in a plan view, and is installed at a position on the right side in the vehicle width direction of the electric hot water heater 2 in the bonnet room 11. Specifically, the longitudinal direction is arranged along the vehicle front-rear direction with a space between the electric hot water heater 2 and a space. Thereby, the micro control unit 31 is parallel to the electric hot water heater 2 across the space, and is arranged side by side with the electric hot water heater 2 in the vehicle width direction. Thereby, the micro control unit 31 is installed in parallel with the high temperature tank 6 at a position behind the low temperature tank 5 and the high temperature tank 6 in the vehicle front-rear direction.

  When electric vehicle 1 according to Embodiment 1 of the present invention described above travels normally, wind is received at the front of the vehicle. Wind (air) received at the front of the vehicle is taken into the hood room 11 and flows around the radiator 34 and the low-temperature tank 5. As a result, the cooling water flowing inside the radiator 34 is cooled. Then, the cooling water cooled by the radiator 34 passes through the cooling water circulation passage 3 and is supplied to the low temperature tank 5. Thereby, the air contained in the cooling water is separated. At this time, the cooling water does not have to be heated by the air flowing around the low temperature tank 5. Then, the cooling water from which the air has been separated in the low temperature tank 5 passes through the cooling water circulation passage 3 and is supplied to the water pump 36. The cooling water supplied to the water pump 36 is pumped up by the water pump 36 and flows through the cooling water circulation passage 3 in the order of the micro control unit 31, the in-vehicle charger 32, and the motor 33. Thereby, the micro control unit 31, the vehicle-mounted charger 32, and the motor 33 are cooled.

  On the other hand, the hot water heated by the electric hot water heater 2 passes through the hot water circulation channel 4 and is supplied to the heater core 41. The hot water supplied to the heater core 41 flows around the heater core 41, and heat is exchanged with the air blown into the passenger compartment. Thereby, the temperature of warm water falls and the temperature of the air which blows off into a vehicle interior rises. The hot water whose heat has been exchanged by the heater core 41 passes through the hot water circulation passage 4 and is supplied to the water pump 42. The hot water supplied to the water pump 42 is pumped up by the water pump 42 and supplied to the high temperature tank 6. Thereby, the air contained in warm water is isolate | separated. At this time, the high-temperature tank 6 avoids wind (air) taken into the hood room 11 at the rear of the low-temperature tank 5 in the vehicle front-rear direction and is affected by the heat of the electric hot water heater 2 disposed at the rear of the vehicle front-rear direction. Therefore, the hot water does not have to be significantly cooled by the air flowing around the high temperature tank 6. The hot water from which the air has been separated in the high-temperature tank 6 passes through the hot water circulation passage 4 and is returned to the electric hot water heater 2.

  In electric vehicle 1 according to Embodiment 1 of the present invention described above, air is taken into bonnet room 11 from the front of the vehicle and flows around radiator 34 and low-temperature tank 5. Thereby, air does not stagnate around the low temperature tank 5, and the cooling water flowing through the low temperature tank 5 can be hardly heated. In addition, since the air that has passed around the low temperature tank 5 flows around the high temperature tank 6, it is difficult to cool the hot water flowing through the high temperature tank 6.

[Embodiment 2]
The cooling water circulation channel and the hot water circulation channel of the electric vehicle according to Embodiment 2 have the same configuration as that according to Embodiment 1 described above, and will be described with reference to FIG. In addition, the same code | symbol is attached | subjected and demonstrated about the structure similar to Embodiment 1 mentioned above.

  As shown in FIG. 2, in the electric vehicle 1 according to Embodiment 2 of the present invention, a low temperature tank 7 provided in the cooling water circulation passage 3 and a high temperature tank 8 provided in the hot water circulation passage 4 are integrated. One condensation tank 9 (integrated condensation tank) is formed (see FIG. 7).

  The cooling water circulation passage 3 is for cooling in-vehicle components that generate heat, such as a micro control unit (MCU) 31, an in-vehicle charger (OBC) 32, an electric motor (motor) 33, and the like. In the same manner as the above, in addition to the micro control unit 31, the on-vehicle charger 32 and the motor 33, a radiator 34, a condensation tank (low temperature tank 7), and a water pump 36 are provided. As a result, the cooling water (refrigerant) flowing through the cooling water circulation passage 3 passes through the condensation tank 9 from the radiator 34 and is supplied to the water pump 36. The cooling water pumped up by the water pump 36 is supplied to the micro control unit 31, the on-vehicle unit. The battery flows in the order of the charger 32 and the motor 33 and is returned to the radiator 34.

  The hot water circulation channel 4 is for supplying the hot water (heat medium) heated by the electric hot water heater 2 to the heater core 41 provided in the air passage that is blown out to the passenger compartment. Similarly, in addition to the electric hot water heater 2 and the heater core 41, a water pump 42 and a condensation tank (high temperature tank 8) are provided. Thereby, the hot water heated by the electric hot water heater 2 is supplied to the heater core 41, and heat is exchanged between the heater core 41 and the air blown into the vehicle interior, and then supplied to the water pump 42. The hot water pumped up by the water pump 42 passes through the condensation tank 9 and is returned to the electric hot water heater 2.

  FIG. 7 is a plan view showing the peripheral layout of the condensation tank provided in the hood room of the electric vehicle shown in FIG. 8 to 10 are diagrams showing the condensation tank shown in FIG. 7, in which FIG. 8 is a front view, FIG. 9 is a right side view, and FIG. 10 is a rear view.

  As shown in FIG. 7, in the hood room 11 of the electric vehicle according to Embodiment 2 of the present invention, a radiator 34 (see FIG. 2) provided in the cooling water circulation channel 3, a micro control unit 31, a hot water circulation channel. In addition to the electric hot water heater 2 provided at 4, a condensation tank 9 in which a low temperature tank 7 and a high temperature tank 8 are integrated is installed. These are installed in the order of (1) the radiator 34 and the condensation tank 9, (2) the electric hot water heater 2 and the micro control unit 31 from the front to the rear in the vehicle front-rear direction.

  The radiator 34 is for cooling the cooling water circulating through the cooling water circulation passage 3 as in the first embodiment, and has an elongated rectangular parallelepiped shape. In the bonnet room 11, the radiator 34 is disposed at a position facing the front surface of the vehicle along the vehicle width direction. Thereby, the radiator 34 receives the wind taken into the hood room 11 when the electric vehicle 1 travels, and cools the cooling water flowing through the radiator 34.

  The condensation tank 9 is for separating air contained in cooling water and hot water. The condensation tank 9 according to the second embodiment of the present invention includes a region that becomes the low temperature tank 7 and a region that becomes the high temperature tank 8. A space 91 is provided between them, and these are integrally formed. The condensation tank 9 is composed of a milky white polyethylene container, and the lower half and the upper half are welded together. In the bonnet room 11, the condensation tank 9 is installed along the vehicle width direction at a position where the region serving as the low temperature tank 7 faces the front of the vehicle. As a result, the condensation tank 9 and the radiator 34 are arranged side by side in the vehicle width direction.

  As shown in FIG. 7, the region to be the low temperature tank 7 is provided in a rectangular shape in plan view, and the region to be the high temperature tank 8 is provided in a trapezoidal shape in plan view. A space 91 is provided in a region that is a boundary between the region that becomes the low temperature tank 7 and the region that becomes the high temperature tank 8. Thereby, the region to be the low temperature tank 7 and the region to be the high temperature tank 8 are arranged in parallel via the space 91.

  Further, as shown in FIG. 10, the region that becomes the low temperature tank 7 is formed in a curved shape in which the bottom surface gradually becomes deeper from the left side to the right side in the vehicle width direction. It is formed horizontally in the width direction.

  As shown in FIGS. 7 to 10, the length in the vehicle width direction of the region to be the high temperature tank 8 is shorter than the length in the vehicle width direction of the region to be the low temperature tank 7, and The height of the region to be formed is lower than the height of the region to be the low temperature tank 7 in the height direction. This is to hide the area that becomes the high temperature tank 8 behind the area that becomes the low temperature tank 7 in the vehicle front-rear direction. In this way, the region that becomes the high-temperature tank 8 does not directly receive wind (air) received on the front surface of the vehicle when the electric vehicle 1 travels, and the hot water flowing in the region that becomes the high-temperature tank 8 can be hardly cooled.

  Further, as shown in FIG. 9, a cooling water inlet 71 is provided in the upper region in the height direction on the left side surface of the region that becomes the low temperature tank 7. As shown in FIG. 8, the cooling water inlet 71 is formed in a cylindrical shape protruding leftward from the left side surface of the region to be the low temperature tank 7, and is connected to the radiator 34 by a hose (not shown). As shown in FIGS. 8 and 10, a cooling water outlet 72 is provided in a lower region in the height direction on the right side surface of the region to be the low temperature tank 7. The cooling water outlet 72 is formed in a cylindrical shape protruding rightward from the right side surface of the region to be the low temperature tank 7 and is connected to the water pump 36 by a hose (not shown). In addition, as shown in FIG. 7, a cooling water replenishing port 73 is provided in the central area of the upper surface of the region that becomes the low temperature tank 7. The cooling water replenishment port 73 is formed in a cylindrical shape protruding upward from the upper surface, and is closed by a cap (lid body) 74.

  As shown in FIG. 9, a hot water inlet 81 is provided in the vehicle front-rear direction rear region, which is the upper side in the height direction of the left side surface of the region to be the high temperature tank 8. As shown in FIGS. 8 and 10, the hot water inlet 81 is formed in a cylindrical shape protruding leftward from the left side surface of the region to be the high temperature tank 8, and is connected to the water pump 42 by a hose (not shown). The Further, as shown in FIGS. 9 and 10, the region on the right side of the region that becomes the high temperature tank 8 extends downward along the back surface of the region that becomes the low temperature tank 7, and the hot water outlet 82 is provided on the bottom surface. It has been. The hot water outlet 82 is formed in a cylindrical shape protruding downward from the bottom surface, and is connected to the electric hot water heater 2 by a hose (not shown). Further, as shown in FIG. 7, a hot water replenishing port 83 is provided in the vehicle front-rear direction rear region on the left side in the upper surface vehicle width direction of the region to be the high temperature tank 8. The hot water replenishment port 83 is formed in a cylindrical shape that protrudes upward from the upper surface, and is covered with a cap (lid body) 84.

  Further, as shown in FIGS. 7 and 9, a space 91 provided in a region serving as a boundary between a region serving as the low temperature tank 7 and a region serving as the high temperature tank 8 is for blocking heat. In the condensation tank 9 according to the embodiment, a space 91 provided in a region serving as a boundary is a closed space. An air hole 911 that communicates with the closed space from the outside is provided on the side surface, for example, the left side surface, of the condensation tank 9. Thereby, an air layer is formed in the closed space. Even when the air in the closed space is warmed or cooled, the air is taken in and out from the air holes 911, and the volume of the closed space is kept constant. Thereby, it is possible to prevent the condensation tank 9 from expanding and contracting.

  Further, as shown in FIG. 8, mounting brackets (front mounting portions) 75 and 76 are fixed on both sides of the front upper region of the region that becomes the low temperature tank 7 of the condensation tank 9. The mounting brackets 75 and 76 are for fixing the front surface of the condensation tank 9 to the hood room 11 (electric vehicle 1), and are formed by cutting a flat steel plate having a uniform thickness and bending it appropriately. Specifically, as shown in FIGS. 8 and 9, the mounting brackets 55 and 56 are symmetrical, and the portions to be the front plates 751 and 761 are provided along the front surface of the condensation tank 9, and the upper ends 752 and 752 thereof. 762 is horizontally bent forward in the vehicle front-rear direction.

  Further, as shown in FIGS. 9 and 10, a mounting bracket (bottom mounting portion) 85 is fixed to the bottom surface of the region of the condensation tank 9 which becomes the high temperature tank 8. The mounting bracket 85 is for fixing the bottom surface of the region to be the high temperature tank 8 of the condensation tank 9 to the bonnet room 11 (electric vehicle 1), and is formed by appropriately bending a flat steel plate having a uniform thickness. Yes. Specifically, as shown in FIG. 9 and FIG. 10, the portion that becomes the bottom plate 851 is provided along the bottom surface of the region that becomes the high temperature tank 8, and both sides thereof are bent downward to become the leg portions 852. Both ends thereof are bent outward in the vehicle width direction to form attachment portions 853. The condensation tank 9 according to the present embodiment fixes the mounting brackets 75 and 76 fixed to the front surface to the upper bar 111 constituting the front edge of the bonnet room 11 at two points, and also serves as the high-temperature tank 8. The mounting bracket 85 fixed to the bottom surface of the vehicle is fixed to the vehicle body member or peripheral device provided in the bonnet room 11 at two points. Thus, the condensation tank 9 according to the present embodiment is fixed at two points provided on the front surface side and one point provided on the bottom surface.

  The electric hot water heater 2 is for heating water, as in the first embodiment, and is configured separately from the condensation tank 9 as shown in FIG. The electric hot water heater 2 is configured in a rectangular parallelepiped shape in plan view, and is disposed in the bonnet room 11 at a position behind the condensation tank 9 in the vehicle front-rear direction. Specifically, the longitudinal direction is arranged along the vehicle width direction with a space between the condensation tank 9 and the space. Thereby, the electric hot water heater 2 is parallel to the high temperature tank with a space therebetween, and is arranged side by side with the high temperature tank in the vehicle front-rear direction.

  The micro control unit 31 is for controlling the in-vehicle charger 32 and the motor 33, and is configured separately from the condensation tank 9 and the electric hot water heater 2, as shown in FIG. The micro control unit 31 is configured in a rectangular parallelepiped shape in a plan view, and is arranged at a position on the right side in the vehicle width direction of the electric hot water heater 2 in the bonnet room 11. Specifically, the longitudinal direction is arranged along the vehicle front-rear direction with a space between the electric hot water heater 2 and a space. Thereby, the micro control unit 31 is parallel to the electric hot water heater 2 across the space, and is arranged side by side with the electric hot water heater 2 in the vehicle width direction. Thereby, the micro control unit 31 is arranged in parallel with the condensation tank 9 at a position behind the condensation tank 9 in the vehicle front-rear direction.

  When electric vehicle 1 according to Embodiment 1 of the present invention described above travels normally, wind is received at the front of the vehicle. Wind (air) received at the front of the vehicle is taken into the hood room 11 and flows around the radiator 34 and the condensation tank 9. As a result, the cooling water flowing inside the radiator 34 is cooled. Then, the cooling water cooled by the radiator 34 passes through the cooling water circulation passage 3 and is supplied to a region that becomes the low temperature tank 7 of the condensation tank 9. Thereby, the air contained in the cooling water is separated. At this time, the cooling water does not have to be heated by the air flowing around the region that becomes the low temperature tank 7. Then, the cooling water from which the air has been separated in the region serving as the low temperature tank 7 passes through the cooling water circulation passage 3 and is supplied to the water pump 36. The cooling water supplied to the water pump 36 is pumped up by the water pump 36, and the micro control unit 31, the in-vehicle charger 32, and the motor 33 are cooled.

  On the other hand, the hot water heated by the electric hot water heater 2 passes through the hot water circulation channel 4 and is supplied to the heater core 41. The hot water supplied to the heater core 41 flows around the heater core 41, and heat is exchanged with the air blown into the passenger compartment. Thereby, the temperature of warm water falls and the temperature of the air which blows off into a vehicle interior rises. The hot water whose heat has been exchanged by the heater core 41 passes through the hot water circulation passage 4 and is supplied to the water pump 42. The hot water supplied to the water pump 42 is pumped up by the water pump 42 and supplied to a region of the condensation tank 9 that becomes the high temperature tank 8. Thereby, the air contained in warm water is isolate | separated. At this time, the region that becomes the high-temperature tank 8 avoids the wind (air) received from the front of the vehicle body in the vehicle longitudinal direction rearward of the region that becomes the low-temperature tank 7, and is affected by the heat of the electric hot water heater 2 disposed rearward in the vehicle longitudinal direction. Receive. Therefore, the hot water does not have to be remarkably cooled by the air flowing around the region that becomes the high temperature tank 8. Then, the hot water from which the air has been separated in the region serving as the high-temperature tank 8 passes through the hot water circulation passage 4 and is returned to the electric hot water heater 2.

  In the electric vehicle 1 according to the second embodiment of the present invention described above, air is taken into the hood room 11 from the front of the vehicle and flows around the radiator 34 and the condensation tank 9. As a result, air does not stagnate around the region that becomes the low-temperature tank 7 of the condensation tank 9, and the cooling water flowing in the region that becomes the low-temperature tank 7 can be hardly heated. In addition, since the air that has passed around the region that becomes the low-temperature tank 7 flows around the region that becomes the high-temperature tank 8, the hot water flowing through the high-temperature tank 8 can be hardly cooled.

  In addition, since a space 91 is provided between the region to be the low temperature tank 7 and the region to be the high temperature tank 8 and these are integrally formed, the region to be the low temperature tank 7 and the region to be the high temperature tank 8 are fixed. There is no need to do this, and the number of attachment points (fastening points) of the condensation tank 9 can be reduced.

  In addition, a space 91 provided between the region that becomes the low temperature tank 7 and the region that becomes the high temperature tank 8 is a closed space, and an air hole 911 that communicates with the closed space from the outside is provided on the side surface of the condensation tank 9. As a result, an air layer is formed in the space 91. Thereby, the area | region used as the low temperature tank 7 and the area | region used as the high temperature tank 8 are insulated. Further, since the air is taken in and out even when the air in the space 91 is warmed or cooled, it is possible to prevent the condensation tank 9 from expanding and contracting.

  The condensation tank 9 is fixed to the upper bar 111 serving as the front edge of the bonnet room 11 with a mounting bracket 75 fixed to the front surface on the region side serving as the low temperature tank 7, and fixed to the bottom surface of the region serving as the high temperature tank 8. Since the mounting bracket 85 is fixed to the vehicle body member or the peripheral device, the condensation tank 9 can be reliably supported. Further, although the relatively high temperature cooling water in the low temperature tank 7 collects in the upper part, the condensation tank 9 is supported by the upper bar 111 at the upper part of the low temperature tank 7, so that the influence of heat transmitted from the upper bar 111 can be suppressed. It can be made difficult to warm the cooling water. Moreover, although the comparatively low temperature warm water gathers below the high temperature tank 8, since the condensation tank 9 is supported by the vehicle body under the high temperature tank 8, the heat of warm water can be prevented from escaping to the vehicle body side, It is difficult to cool hot water.

In the second embodiment described above, the space 91 provided in the region serving as the boundary between the region serving as the low-temperature tank 7 and the high-temperature tank 8 is a closed space, but is more negative than the atmospheric pressure (vacuum). ). Thus, if the vacuum is adjusted to a negative pressure rather than the atmospheric pressure, the heat insulating performance of the space 91 can be enhanced.
In the first and second embodiments, the electric hot water heater 2 is used as the heating means. However, the present invention is not limited to this. For example, a heat pump or an engine may be used.

  As described above, the vehicle according to the present invention can prevent the refrigerant flowing through the refrigerant condensation tank from being warmed, and can also make it difficult to cool the heating medium flowing through the heating medium condensation tank, so the vehicle can be driven by hot water heated by the electric hot water heater. It is suitable for an electric vehicle that warms indoor air.

1 Electric Vehicle 11 Bonnet Room 111 Upper Bar (Cross Member Member)
2 Electric hot water heater 3 Cooling water circulation channel 31 Micro control unit (MCU)
32 On-board charger (OBC)
33 Motor 34 Radiator 36 Water pump 4 Hot water circulation passage 41 Heater core 42 Water pump 5 Low temperature tank (refrigerant condensation tank)
51 Cooling water inlet 52 Cooling water outlet 53 Cooling water replenishment port 54 Cap 55, 56 Mounting bracket (front mounting portion)
551,561 Front plate 552,562 Upper end 6 High temperature tank (heat medium condensation tank)
61 Hot water inlet 62 Hot water outlet 63 Hot water replenishment port 65 Mounting bracket (rear mounting part)
66 Mounting bracket (bottom mounting part)
7 Low temperature tank 75, 76 Mounting bracket (front mounting part)
8 High temperature tank 85 Mounting bracket (bottom mounting part)
9 Condensation tank (integrated condensation tank)
91 space 911 air hole

Claims (6)

A vehicle that warms the air in the passenger compartment with a heating medium heated by a heating means,
A refrigerant circulation passage through which a refrigerant for cooling the vehicle-mounted component circulates;
A refrigerant condensation tank formed on the refrigerant circulation passage;
A heat medium circulation passage through which the heat medium heated by the heating means circulates;
A heat medium condensation tank formed on the heat medium circulation channel;
With
The heating medium condensation tank is juxtaposed with a space between the refrigerant condensation tank and the refrigerant condensation tank on the vehicle longitudinal direction rear side of the refrigerant condensation tank,
The vehicle, wherein the heating means is arranged in parallel on the rear side in the vehicle front-rear direction of the heat medium condensation tank.   The vehicle according to claim 1, further comprising an integrated condensation tank in which the heating medium condensation tank and the refrigerant condensation tank are integrally provided.   The vehicle according to claim 2, wherein the integrated condensation tank has a communication hole that communicates between the space and the outside. The space is a sealed space;
The vehicle according to claim 2, wherein the sealed space is adjusted to a vacuum.   The integrated condensation tank is provided on the front surface of the refrigerant condensation tank side, and is mounted at a front mounting portion supported by a cross member member provided in the vehicle width direction in front of the vehicle, and below the heating medium condensation tank side. The vehicle according to any one of claims 2 to 4, further comprising a bottom mounting portion supported on the vehicle body side.   The vehicle width direction length of the heating medium condensation tank is shorter than the vehicle width direction length of the refrigerant condensation tank, and the height of the heating medium condensation tank is formed lower than the height of the refrigerant condensation tank. The vehicle as described in any one of Claims 2-4 characterized by the above-mentioned.

Images