JP2017013733A - Vehicle air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle air-conditioner capable of simplifying a door open/close control and suppressing the obstruction by a door against a blown air flow from a mix passage to a vent opening portion.SOLUTION: A vent opening portion 13 includes a center vent opening portion 15 guiding blown air to a center vent air outlet in a cabin, and a side vent opening portion 17 disposed to be arranged side by side with this center vent opening portion 15 in a vehicle front-rear direction and guiding the blown air to a side vent air outlet in the cabin, a center vent door 19 and a side vent door 21 disposed to rotate within a mix passage 11 and to be able to open or close the center vent opening portion 15 and the side vent opening portion 17 are provided in the center vent opening portion 15 and the side vent opening portion 17, respectively, and rotational shafts 23 and 25 of the center vent door 19 and the side vent door 21 are provided in opening end portions farthest to the side vent opening portion 17 and the center vent opening portion 15, respectively.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle air conditioner applied to a vehicle.

  Conventionally, as an air conditioner for a vehicle, a casing provided with an air passage inside, a cold air passage provided in the air passage and through which cool air flows, a hot air passage provided in the air passage and through which hot air flows, and a cold air passage A mix passage in which the cool air and the hot air are mixed and arranged on the downstream side of the air passage and the hot air passage, and vent air blown through the mix passage that is opened in the outer peripheral surface of the casing where the mix passage is located and flows through the mix passage. The thing provided with the side face opening part as a vent opening part led to an exit is known (for example, refer to patent documents 1).

  In this vehicle air conditioner, two side face openings are provided on the outer peripheral surface of the casing side by side in the vehicle front-rear direction, and the two side face openings are pivoted between the two side face openings. It is opened and closed by a defroster door that rotates the mix passage.

JP 2001-239819 A

  However, in the vehicle air conditioner as in the above-mentioned Patent Document 1, since two vent openings are opened and closed by the operation of one door, the door opening / closing control is complicated and the door is rotated in the mix passage. Depending on the position, the door sometimes obstructed the flow of blown air from the mix passage toward the vent opening.

  Therefore, an object of the present invention is to provide a vehicle air conditioner that can simplify door opening / closing control and can suppress the inhibition of the flow of blown air by the door from the mix passage to the vent opening.

  The present invention includes a casing provided with an air passage inside, a cold air passage provided in the air passage and through which cool air flows, a hot air passage provided in the air passage and through which hot air flows, the cold air passage, A mix passage arranged downstream of the hot air passage and mixed with the cold air and the hot air, and vented in the passenger compartment through the mix passage opened in the outer peripheral surface of the casing where the mix passage is located. An air conditioner for a vehicle having a vent opening that leads to a blowout port, wherein the vent opening includes a center vent opening that guides blown air to a center vent blowout in a vehicle interior, and the center vent opening and the vehicle Are arranged side by side in the front-rear direction of the vehicle, and have side vent openings that guide the blown air to the side vent outlets in the passenger compartment. The center vent opening and the side vent openings include the side vent openings. A center vent door and a side vent door that are pivotable in a box passage so that the center vent opening and the side vent opening can be opened and closed, respectively. The respective rotation shafts are arranged at the opening end portions farthest from the center vent opening and the side vent opening.

  According to the present invention, it is possible to provide a vehicle air conditioner capable of simplifying door opening and closing control and suppressing inhibition of the blown air flow by the door from the mix passage to the vent opening. There is an effect.

1 is a perspective view of a vehicle air conditioner according to an embodiment of the present invention. It is sectional drawing of the vehicle air conditioner which concerns on embodiment of this invention. It is sectional drawing when the center vent door and side vent door of the vehicle air conditioner which concern on embodiment of this invention are in a substantially middle opening position.

  A vehicle air conditioner according to an embodiment of the present invention will be described with reference to FIGS.

  The vehicle air conditioner 1 according to the present embodiment includes a casing 5 provided with an air passage 3 therein, a cold air passage 7 provided in the air passage 3 through which cool air flows, and hot air provided in the air passage 3. On the outer peripheral surface of the casing 5 in which the hot air passage 9 that circulates, the mix passage 11 that is arranged downstream of the cold air passage 7 and the hot air passage 9 and in which the cold air and the hot air are mixed, are located. A vent opening 13 is provided that guides the blown air that is opened and flows through the mix passage 11 to a vent outlet in the passenger compartment.

  In addition, the vent opening 13 is arranged alongside the center vent opening 15 for guiding the blown air to the center vent outlet in the passenger compartment and the center vent opening 15 in the front-rear direction of the vehicle. And a side vent opening 17 for guiding the blown air.

  Further, the center vent opening 15 and the side vent opening 17 are respectively provided with a center vent door 19 that is disposed in the mix passage 11 so that the center vent opening 15 and the side vent opening 17 can be opened and closed. A side vent door 21 is provided.

  Further, the center vent door 19 and the side vent door 21 are arranged such that the rotation shafts 23 and 25 are located at the farthest opening end portions between the center vent opening 15 and the side vent opening 17.

  Further, between the center vent opening 15 and the side vent opening 17, a convex portion 27 that protrudes toward the mix passage 11 is provided.

  In the vehicle air conditioner 1 according to the present embodiment, the left side in FIG. 2 is the front side of the vehicle, and the right side in FIG. 2 is the rear side of the vehicle.

  As shown in FIGS. 1-3, the casing 5 is arrange | positioned inside the instrument panel (not shown) located in the front of a vehicle, for example.

  In the casing 5, a blower unit 29 that flows blown air from the front side to the rear side of the vehicle is disposed on one side in the vehicle width direction of the vehicle, and the inside communicates with the blower unit 29 through an opening 31. .

  Inside the casing 5, there is provided a blower passage 3 that is arranged downstream of the flow of blown air from the blower unit 29 and through which blown air flows. Adjustment for adjusting the temperature of the blown air in the blower passage 3 is provided. Means are arranged.

  Specifically, in the casing 5, an evaporator 33 as an adjusting means for cooling the blown air, a heater core 35 as an adjusting means for heating the blown air, a cool air passage 7 through which cool air flows, and hot air through which hot air flows A passage 9, a mix passage 11 in which cold air and hot air are mixed, and a mix door 37 as adjustment means for adjusting the mixing ratio of the cold air and hot air flowing through the mix passage 11 are provided.

  The evaporator 33 is disposed on the most upstream side of the flow of the blown air in the blower passage 3 in the casing 5. The evaporator 33 is a cooling heat exchanger, and cools all the blown air flowing from the blower unit 29 to cool air.

  The heater core 35 is disposed on the downstream side of the evaporator 33 in the flow of the blown air in the blower passage 3 in the casing 5. The heater core 35 is a heat exchanger for heating, and heats the cold air that has passed through the evaporator 33 to warm air.

  The cool air passage 7 is provided along the flow direction of the blown air so as to be positioned above the heater core 35 on the downstream side of the flow of the blown air of the evaporator 33 in the blower passage 3. The cold air passage 7 is a flow passage that passes through the evaporator 33 and bypasses the heater core 35, that is, a cold air that does not pass through the heater core 35 flows.

  The warm air passage 9 is provided along the flow direction of the blown air in the blower passage 3 toward the upstream side of the flow of the blown air in the heater core 35 upward. The warm air passage 9 is a flow passage through which the warm air that has passed through the heater core 35 flows.

  The mix passage 11 is provided on the downstream side of the flow of the blown air between the cold air passage 7 and the hot air passage 9 in the air passage 3. The mix passage 11 mixes the cold air flowing through the cold air passage 7 and the hot air flowing through the hot air passage 9 to form an adjusted air adjusted to a predetermined temperature.

  The mix door 37 is pivotally supported in the vicinity of the upper end of the heater core 35 so as to be able to open and close the opening 39 of the cool air passage 7 and the opening 41 on the upstream side of the heater core 35 by operating an actuator (not shown). Is arranged.

  The mix door 37 mixes the cold air flowing from the cold air passage 7 toward the mix passage 11 and the hot air passage 9 by adjusting the open / closed state of the opening 39 of the cold air passage 7 and the opening 41 on the upstream side of the heater core 35. The ratio of the warm air flowing toward the passage 11 is adjusted.

  In this way, the blown air as the adjustment air whose temperature is adjusted in the mix passage 11 by the open / close state of the mix door 37 includes the differential opening 43 provided on the outer peripheral surface of the casing 5, the foot passage 45, and the vent opening. 13 to the outside of the casing 5.

  The differential opening 43 is positioned on the front side of the vehicle on the outer peripheral surface of the casing 5 in the front-rear direction of the vehicle, that is, on the opposing wall that faces the flow of the blown air flowing through the blower passage 3. Is opened to communicate.

  The differential opening 43 is connected to a differential outlet (not shown) directed to the window glass of the vehicle, and the flow rate of the blown air is adjusted by a differential door 47 arranged so that the differential opening 43 can be opened and closed.

  The foot passage 45 is provided in the blower passage 3 along the flow direction of the blown air downward on the downstream side of the mix passage 11. In the foot passage 45, blown air as the adjustment air formed in the mix passage 11 flows.

  On the downstream side of such a foot passage 45, a foot opening (not shown) connected to a foot outlet (not shown) directed to the lower space in the passenger compartment, that is, the lower body side of the passenger is provided. The flow rate of the blown air is adjusted by a foot door 49 arranged so that 45 can be opened and closed.

  The vent opening 13 is positioned substantially at the center of the outer peripheral surface of the casing 5 in the front-rear direction of the vehicle, and is opened so as to communicate the inside and the outside of the casing 5.

  The vent opening 13 is connected to an upper space in the passenger compartment, that is, a vent outlet (not shown) directed to the upper body side of the passenger.

  Such a vent opening 13 is arranged so as to be linearly opposed to the opening 39 of the cool air passage 7 through which the blown air that passes through the evaporator 33 and bypasses the heater core 35 flows. ing.

  Here, as the blown air flowing from the vent opening 13 to the outside of the casing 5, that is, from the vent outlet, there is almost no adjustment air of only warm air, adjustment air in which cold air and hot air are mixed, or Since the adjustment air includes only the cold air, it is preferable that the air flow is arranged linearly in the direction of air flow that passes through the evaporator 33 and bypasses the heater core 35 through the vent opening 13.

  By arranging the vent opening 13 in this way, it is possible to sufficiently secure the flow rate of the blown air that is blown out from the vent outlet directed toward the upper space in the vehicle interior. Such a vent opening 13 has a center vent opening 15 and a side vent opening 17 arranged side by side in the longitudinal direction of the vehicle.

  The center vent opening 15 is positioned on the rear side of the vehicle on the outer circumferential surface of the casing 5 in the front-rear direction of the vehicle, and is provided with a center vent outlet (not shown) provided in a substantially central portion in the vehicle width direction of the vehicle in the passenger compartment. )It is connected to the.

  The center vent opening 15 is pivotally supported by a rotating shaft 23 and is opened and closed by a center vent door 19 that rotates in the mix passage 11 and flows from the mix passage 11 toward the center vent opening 15. The flow rate of the blown air is adjusted.

  The side vent openings 17 are positioned on the front side of the vehicle on the outer circumferential surface of the casing 5 in the front-rear direction of the vehicle, and on side vent outlets (not shown) provided on both sides in the vehicle width direction of the vehicle in the passenger compartment. It is connected.

  The side vent opening 17 is pivotally supported by a rotating shaft 25 and is opened and closed by a side vent door 21 that rotates in the mix passage 11 and flows from the mix passage 11 toward the side vent opening 17. The flow rate of the blown air is adjusted.

  Thus, on the outer peripheral surface of the casing 5, the center vent opening 15 and the side vent opening 17 arranged side by side in the front-rear direction of the vehicle are the center vent door 19 and the side having a turning locus in the mix passage 11. The vent doors 21 are opened and closed.

  The center vent door 19 and the side vent door 21 are not arranged in the mix passage 11 when the center vent opening portion 15 and the side vent opening portion 17 are closed, respectively, and flow through the mix passage 11. There is no hindrance to the flow of blowing air.

  However, in the state where the center vent opening 15 and the side vent opening 17 are opened, the center vent door 19 and the side vent door 21 are disposed in the mix passage 11 and the blown air flowing through the mix passage 11 There is a possibility that the air flow having a sufficient flow rate cannot flow through the center vent opening 15 and the side vent opening 17 due to interference.

  Therefore, the respective rotation shafts 23 and 25 of the center vent door 19 and the side vent door 21 are orthogonal to the direction of air flow from the mix passage 11 toward the center vent opening 15 and the side vent opening 17. The center vent opening 15 and the side vent opening 17, which are the opposite ends, are disposed at the farthest opening ends.

  Here, when the rotation shafts 23 and 25 of the center vent door 19 and the side vent door 21 are disposed at the closest opening end portions of the center vent opening 15 and the side vent opening 17, respectively. The blast air from the mix passage 11 toward the center vent opening 15 and the side vent opening 17 wraps around the center vent door 19 and the side vent door 21 so that the center vent opening 15 and the side vent opening 17 It will flow towards.

  In such an arrangement of the pivot shafts 23 and 25 of the center vent door 19 and the side vent door 21, the center vent door 19 and the side vent door 21 arranged in the mix passage 11 pass through the mix passage 11. In addition to hindering the flow of the blown air that circulates, the flow rate of the blown air that flows toward the center vent opening 15 and the side vent opening 17 may be reduced.

  In contrast, when the pivot shafts 23 and 25 of the center vent door 19 and the side vent door 21 are arranged at the farthest opening ends of the center vent opening 15 and the side vent opening 17, respectively. The air blown from the mix passage 11 toward the center vent opening 15 and the side vent opening 17 along the center vent door 19 and the side vent door 21 and the center vent opening 15 and the side vent opening 17 It will flow toward.

  For this reason, in the arrangement of the pivot shafts 23 and 25 of the center vent door 19 and the side vent door 21 as described above, the center vent door 19 and the side vent door 21 arranged in the mix passage 11 are connected to the mix passage. 11 is directed toward the center vent opening 15 and the side vent opening 17, and the flow rate of the blowing air flowing toward the center vent opening 15 and the side vent opening 17 is sufficiently secured. can do.

  Between the center vent opening 15 and the side vent opening 17 that are opened and closed by the center vent door 19 and the side vent door 21, a protruding portion 27 that protrudes toward the mix passage 11 is provided. ing.

  The projecting portion 27 protrudes from the inner wall surface of the casing 5 toward the mix passage 11 so as to have inclined surfaces that incline toward both the center vent opening 15 and the side vent opening 17.

  Thus, by providing the convex part 27 between the adjacent center vent opening part 15 and the side vent opening part 17, the blast air which flows toward the convex part 27 from the mix channel | path 11 is made into a center vent opening along an inclined surface. It is possible to disperse uniformly toward the portion 15 and the side vent opening 17 and to prevent a drift in which the blown air flows in one direction.

  In such a vehicle air conditioner 1, the center vent opening 15 and the side vent opening 17 are opened and closed by the center vent door 19 and the side vent door 21, respectively. The unit 17 can be controlled to open and close independently, and there is no need to use complicated open / close control.

  Further, the pivot shafts 23 and 25 of the center vent door 19 and the side vent door 21 are disposed at the farthest opening end portions of the center vent opening 15 and the side vent opening 17, so The vent door 19 and the side vent door 21 can guide the air blown through the mix passage 11 to the center vent opening 15 and the side vent opening 17.

  Therefore, in such a vehicle air conditioner 1, the opening / closing control of the center vent door 19 and the side vent door 21 can be simplified, and the center vent door 19 and the side vent from the mix passage 11 to the vent opening 13 can be simplified. Inhibition of the blown air flow by the door 21 can be suppressed.

  Moreover, since the convex part 27 protruded toward the mix channel | path 11 is provided between the center vent opening part 15 and the side vent opening part 17, it faces toward the vent opening part 13 side from the mix channel | path 11. The flowing blast air can be dispersed in the center vent opening 15 and the side vent opening 17 and the drift of the blast air can be prevented.

  In the vehicle air conditioner according to the embodiment of the present invention, the center vent opening is located on the rear side of the vehicle and the side vent opening is located on the front side of the vehicle. The center vent opening may be positioned on the front side of the vehicle, and the side vent opening may be positioned on the rear side of the vehicle.

  Moreover, although the mix door is a door that is pivotally supported in a cantilever manner, the present invention is not limited to this, and a slide door that slides the mix door may be used.

DESCRIPTION OF SYMBOLS 1 ... Vehicle air conditioner 3 ... Air supply passage 5 ... Casing 7 ... Cool air passage 9 ... Warm air passage 11 ... Mix passage 13 ... Vent opening 15 ... Center vent opening 17 ... Side vent opening 19 ... Center vent door 21 ... Side vent door 23 ... Center vent door pivot axis 25 ... Side vent door pivot axis 27 ... Convex

Claims (2)

A casing (5) provided with an air passage (3) inside, a cold air passage (7) provided in the air passage (3) through which cool air flows, and hot air provided in the air passage (3). A hot air passage (9), a mix passage (11) arranged downstream of the cold air passage (7) and the hot air passage (9) and mixed with the cold air and the hot air, and the mix passage ( 11) A vehicle air conditioner comprising a vent opening (13) that opens to the outer peripheral surface of the casing (5) in which 11) is located and guides the blown air flowing through the mix passage (11) to a vent outlet in the vehicle compartment. Because
The vent opening (13) is arranged side by side with the center vent opening (15) for guiding the blown air to the center vent outlet in the passenger compartment, and the center vent opening (15) in the longitudinal direction of the vehicle. A side vent opening (17) for guiding the air to the side vent outlet of
The center vent opening (15) and the side vent opening (17) rotate in the mix passage (11), and the center vent opening (15) and the side vent opening (17) A center vent door (19) and a side vent door (21) arranged to be openable and closable, respectively,
The center vent door (19) and the side vent door (21) have their rotation shafts (23, 25) farthest from the center vent opening (15) and the side vent opening (17). An air conditioner for a vehicle, which is disposed at an open end. The vehicle air conditioner according to claim 1,
Between the center vent opening (15) and the side vent opening (17), a protrusion (27) protruding toward the mix passage (11) is provided. Vehicle air conditioner.

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