JP2017196912A - Air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner for a vehicle which suppresses variation of temperature in a passenger room.SOLUTION: An air conditioner 100 for a vehicle comprises a suction port 1 and a wind outlet 2 which are provided on a ceiling C of a passenger room Q of a vehicle T, and an air conditioner 3 which conditions air taken-in from the suction port 1 and ejects air into the passenger room Q from the wind outlet 2. In the air conditioner, an air duct cover 10, which covers the suction port 1, is provided over a side wall surface F from the ceiling C of the passenger room Q, and the air duct cover 10 is provided with a first opening 11 which is formed on the ceiling C side, and a second opening 12 which is formed on the side wall surface F side. Therefore, air in the passenger room Q can be circulated so as to form air flow which is hard to occur short circuit, thereby enabling suppression of variation of the temperature in the passenger room Q.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle air conditioner used for a railway vehicle, a bus vehicle, and the like.

In a conventional vehicle air conditioning system, an air conditioner is generally installed on the roof of a vehicle, and a suction port and a blowout port of the air conditioner are provided on the ceiling of a passenger room (see, for example, Patent Document 1).
Then, after the air conditioner has conditioned the air in the guest room taken in from the air inlet to an appropriate temperature, the air is discharged from the air outlet into the guest room to keep the guest room comfortable.

JP 2014-40147 A

However, in the case of the vehicle air conditioning system of Patent Document 1 above, since the air inlet and the air outlet provided on the ceiling of the passenger cabin are relatively close at the same height, the air discharged from the air outlet is directly inhaled. There was a case where a short circuit flowing into the mouth occurred. In addition, since a suction port was provided near the air conditioner, it was easy for air to stagnate in the corners and edges of the guest room away from the suction port.
As a result, there has been a problem that the temperature in the passenger cabin varies.

  The objective of this invention is providing the vehicle air conditioner which suppresses the variation in the temperature in a passenger room.

In order to achieve the above object, the present invention
A vehicle comprising: a suction port and a blowout port provided on a ceiling of a vehicle cabin; and an air conditioner that air-conditions the air in the cabin that is taken in from the suction port and discharges the air from the blowout port into the cabin. Air conditioner for
A plurality of the suction ports are provided at predetermined intervals in the longitudinal direction of the vehicle, and an airway cover that covers the suction ports is provided from the ceiling to the side wall surface of the cabin,
The airway cover is provided with a first opening formed on the ceiling side and a second opening formed on the side wall surface side.

With the vehicle air conditioner configured as described above, when the air conditioner takes in the air in the cabin from the plurality of suction ports, the air in the cabin can be sucked in from the first opening and the second opening of the airway cover, respectively. it can. And since the 1st opening part provided in the ceiling side and the 2nd opening part provided in the side wall surface side are in the height position different from a blowing outlet, respectively, it is difficult to raise | generate a short circuit.
That is, the vehicle air conditioner in which the airway cover having the first opening formed on the ceiling side and the second opening formed on the side wall surface side so as to cover the suction port is a short circuit. It is possible to circulate the air in the guest room so as to create an air flow that is difficult to cause, and to suppress temperature variations in the guest room.

Also, preferably
A cargo rack is disposed on the side wall surface of the guest room,
The second opening of the airway cover is provided so as to be located above the cargo rack.
By doing so, in addition to sucking air in the cabin from the first opening provided on the ceiling side, air in the vicinity of the cargo rack can be sucked from the second opening provided on the side wall surface side.
The cargo racks arranged on the side walls of the cabin may hinder the movement of air in the vertical direction in the cabin. Therefore, if the second opening is provided so as to be positioned above the cargo rack, It is possible to circulate the air in the cabin by creating a suitable air flow in the cabin by sucking the air in the vicinity of the shelf.

  In addition, for example, if the load rack is a load rack in which a plurality of pipe members are arranged in a lattice shape and a gap is provided between the pipe members, air can be passed in the vertical direction of the load rack. Therefore, the air under the load shelf can be sucked from the second opening of the airway cover to create an air flow along the side wall surface, and the air in the cabin can be circulated appropriately.

Also, preferably
On the side wall surface of the cabin, there is a window part, and a cargo rack is arranged above the window part,
The airway cover penetrates the load shelf, and the second opening is provided on the lower surface side of the load shelf.
By doing so, in addition to sucking air in the cabin from the first opening provided on the ceiling side, air under the load shelf can be sucked from the second opening provided on the lower surface side of the load shelf. it can.
The cargo rack arranged on the side wall of the cabin may hinder the movement of air in the vertical direction in the cabin. Therefore, if a second opening is provided on the lower surface of the cargo rack, The air in the cabin can be circulated by creating a suitable air flow in the cabin by inhaling the side air.

  In particular, since there is a window below the load shelf, radiant heat from sunlight entering from the window tends to accumulate under the load shelf, so the air under the load shelf is sucked from the second opening of the airway cover. In this way, the cabin can be more comfortably maintained by creating an air flow in which the radiant heat does not easily accumulate in the vicinity of the window.

  Also, for example, when a seat is installed corresponding to the position of the window, the air around the passenger seated on the seat is created by the air flow created by sucking the air under the cargo rack from the second opening. Is also circulated, so passengers can move in a more comfortable state.

  ADVANTAGE OF THE INVENTION According to this invention, the vehicle air conditioner which can suppress the variation in the temperature in a passenger room is obtained.

It is explanatory drawing (a) which shows the vehicle air conditioner of Embodiment 1, and the bb arrow line view of Fig.1 (a). It is a perspective view which shows the airway cover of the vehicle air conditioner of Embodiment 1. It is explanatory drawing (a) which shows the vehicle air conditioner of Embodiment 2, and the bb arrow line view of Fig.3 (a). It is a perspective view which shows the airway cover of the vehicle air conditioner of Embodiment 2.

  Hereinafter, an embodiment of a vehicle air conditioner according to the present invention will be described in detail with reference to the drawings. However, the embodiments described below are given various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.

(Embodiment 1)
Fig.1 (a) is explanatory drawing which shows the vehicle air conditioner 100 in a rail vehicle, and FIG.1 (b) is the bb arrow line view.
FIG. 2 is a perspective view showing the airway cover 10 of the vehicle air conditioner 100. In FIG. 2, only the front airway cover 10 is shown, and the other airway covers are not shown.

The vehicle air conditioner 100 air-conditions the air in the guest room Q taken in from the air inlet 1 and the air outlet 2 provided in the ceiling C of the guest room Q of the vehicle T and the air inlet 1, and And an air conditioner 3 to be discharged.
In the present embodiment, five suction ports 1 are provided at predetermined intervals in the longitudinal direction of the vehicle T. The suction ports 1 are provided at a total of 10 locations, one row on each side.
Although not shown in FIG. 1A, the air outlet 2 is provided so as to correspond to the air inlet 1. As shown in FIG. 1 (b), the air outlets 2 are sandwiched between the left and right air inlets 1 and provided on the center side of the ceiling C of the cabin Q. For example, the left and right rows along the longitudinal direction of the vehicle T It is arranged one by one.

  Moreover, the window part W is provided in five places on one side wall surface F of the guest room Q, and the seat S is provided in the position corresponding to each window part W. A cargo rack R is provided above the window W. Similarly, the other side wall surface F is provided with a window W, a seat S, and a cargo rack R.

The air conditioner 3 is installed on the approximate center side of the roof of the vehicle T.
This air conditioner 3 is a device that performs heating operation, cooling operation, etc., and air-conditions the air in the cabin Q. After the air in the cabin Q taken in from the suction port 1 is conditioned to an appropriate temperature, it is blown out. It operates to discharge from the mouth 2 into the cabin Q.
The air sucked from the suction port 1 is taken into the air conditioner 3 through the duct 4 on the back of the ceiling. An air filter 3 a is provided between the duct 4 and the air conditioner 3.
The air conditioned by the air conditioner 3 is blown out from the outlet 2 to the cabin Q through a duct (not shown).

Each suction port 1 is provided with an airway cover 10 that covers the suction port 1.
The airway cover 10 is a hollow member provided from the ceiling C to the side wall surface F of the cabin Q. Between the airway cover 10 and the ceiling C and the side wall surface F, a side wall surface is provided. A space communicating from F to the ceiling C is formed.
And the airway cover 10 is provided with the 1st opening part 11 formed in the ceiling C side, and the 2nd opening part 12 formed in the side wall surface F side.
The 1st opening part 11 is provided in the position corresponding to the suction inlet 1, and the 2nd opening part 12 is located above the cargo rack R, and is provided so that the upper surface of the cargo rack R may be opposed. .
The 1st opening part 11 and the 2nd opening part 12 are provided in the height position different from the blowing outlet 2, respectively.
Note that the opening sizes of the first opening portion 11 and the second opening portion 12 are different from each other. In this embodiment, 70% suction is performed from the first opening portion 11 and the second opening portions 12 to 30 are sucked. % Inhalation.

Since such an airway cover 10 is provided so as to cover the suction port 1, when the air conditioner 3 takes in the air of the cabin Q from the suction port 1, the first opening portion 11 and the second opening portion 12 Each can inhale the air in guest room Q.
That is, with this vehicle air conditioner 100, the air in the cabin Q can be sucked from the first opening 11 on the ceiling C side and the second opening 12 on the side wall surface F side. Air flow that is difficult to cause a short circuit is created, and it is difficult for air to stagnate on the side wall surface F side of the cabin Q.
Specifically, the first opening 11 and the second opening 12 that suck in the air in the guest room Q are provided at different heights from the air outlet 2, so that it is difficult for a short circuit to occur. Air is easy to circulate.
Thus, the temperature in the cabin Q is less likely to vary, and the cabin Q can be kept more comfortable.

As described above, in the vehicle air conditioner 100 according to the first embodiment, the air in the cabin Q is supplied from the first opening portion 11 and the second opening portion 12 provided at different height positions from the air outlet 2. Since the air can be sucked in, the air in the cabin Q can be circulated so as to create an air flow that is unlikely to cause a short circuit, and the temperature variation in the cabin Q can be suppressed.
In particular, a plurality of suction ports 1 are provided at predetermined intervals in the longitudinal direction of the vehicle T, and the second opening 12 provided on the side wall surface F side is separated from the blower port 1 at a position away from the blower port 1. It is possible to create an air flow that is more unlikely to cause a short circuit by being provided at different heights and by reducing the suction rate of the first opening 11 directly below the air conditioner 3 to 70%. Thus, the temperature variation in the cabin Q can be suppressed.

Moreover, the vehicle air conditioner 100 according to the first embodiment is suitable for air conditioning of a cabin Q provided with a cargo rack R in which a plurality of pipe members are arranged in a lattice shape as shown in FIG. Yes.
If it is a load rack R in which a gap is provided between such pipe members, air can be passed in the vertical direction of the load rack R, so that the load rack R can be opened from the second opening 12 of the airway cover 10. Can inhale under air.
Specifically, since there is a window portion W below the load rack R, radiant heat due to sunlight shining from the window portion W is likely to accumulate, so that the load rack R is opened from the second opening 12 of the airway cover 10. The cabin Q can be kept more comfortable by sucking in the lower air and creating an air flow in which the radiant heat does not easily accumulate in the vicinity of the window portion W.
Moreover, since the air around the passenger seated on the seat S is also circulated by this airflow, the passenger can move in a more comfortable state.
Even in the case of the load rack R in which the net-like members are disposed, air can be passed in the vertical direction of the load rack R, so that the second opening 12 of the airway cover 10 is below the load rack R. Can inhale air.

(Embodiment 2)
Next, Embodiment 2 of the vehicle air conditioner according to the present invention will be described. In addition, about the structure similar to Embodiment 1, the same code | symbol is attached | subjected and description is omitted.
Fig.3 (a) is explanatory drawing which shows the vehicle air conditioner 100 in a rail vehicle, and FIG.3 (b) is the bb arrow line view.
FIG. 4 is a perspective view showing the airway cover 10 of the vehicle air conditioner 100. In FIG. 4, only the front airway cover 10 is illustrated, and the other airway covers are not shown.

The airway cover 10 of Embodiment 2 penetrates the cargo rack R, and the second opening 12 is provided on the lower surface side of the cargo rack R. Specifically, the second opening portion 12 is provided between the window portion W and the cargo rack R.
That is, when the air conditioner 3 takes in the air in the cabin Q from the suction port 1, the air on the ceiling C side is sucked from the first opening 11, and the air below the loading rack R is sucked from the second opening 12. it can.

  Even in the vehicle air conditioner 100 according to the second embodiment, the air in the cabin Q is supplied from the first opening 11 and the second opening 12 that are provided at different heights from the outlet 2. Since the air can be sucked in, the air in the cabin Q can be circulated so as to create an air flow that is unlikely to cause a short circuit, and the temperature variation in the cabin Q can be suppressed.

In particular, the vehicle air conditioner 100 according to the second embodiment is suitable for air conditioning of a cabin Q provided with a cargo rack R in which shelf members are disposed as shown in FIG.
In the case of such a load rack R, since the movement of the air in the vertical direction is hindered, the radiant heat due to the sunlight radiated from the window portion W tends to accumulate below the load rack R.
Then, the 2nd opening part 12 of the airway cover 10 is provided in the lower surface side of the cargo rack R, and radiant heat accumulates in the window part W vicinity so that the air under the cargo rack R may be suck | inhaled from the 2nd opening part 12. If a difficult airflow is created, the cabin Q can be kept more comfortable.
Moreover, since the air around the passenger seated on the seat S is also circulated by this airflow, the passenger can move in a more comfortable state.

  As described above, the vehicle air conditioner 100 according to the present embodiment sucks the air in the cabin Q from the first opening 11 and the second opening 12 provided at different heights from the outlet 2. It is possible to circulate the air in the cabin Q, and to suppress the temperature variation in the cabin Q of the vehicle T.

  In addition, in the above embodiment, the case where the second opening 12 of the airway cover 10 penetrating the cargo rack R in which the shelf board member is disposed is provided on the lower surface side of the cargo rack R. Although described as an example, the present invention is not limited to this, and the airway cover 10 is provided so as to penetrate the gap between the pipe members, even in the case of the cargo rack R in which a plurality of pipe members are arranged. It may be installed and the second opening 12 may be provided on the lower surface side of the cargo rack R.

Moreover, although the case where the vehicle air conditioner 100 is installed in the railway vehicle T has been described as an example in the above embodiment, the present invention is not limited to this, and the vehicle air conditioner 100 may be a bus or the like. You may install in a vehicle.
Two or more air conditioners 3 may be installed in the vehicle T, and the vehicle air conditioner 100 may include two or more air conditioners 3.

  In addition, it is needless to say that other specific detailed structures can be appropriately changed.

DESCRIPTION OF SYMBOLS 1 Air inlet 2 Air outlet 3 Air conditioner 10 Airway cover 11 1st opening part 12 2nd opening part 100 Air conditioner for vehicles T Vehicle Q Guest room C Ceiling F Side wall surface W Window part S Seat sheet R Loading shelf

Claims (3)

A vehicle comprising: a suction port and a blowout port provided on a ceiling of a vehicle cabin; and an air conditioner that air-conditions the air in the cabin that is taken in from the suction port and discharges the air from the blowout port into the cabin. Air conditioner for
A plurality of the suction ports are provided at predetermined intervals in the longitudinal direction of the vehicle, and an airway cover that covers the suction ports is provided from the ceiling to the side wall surface of the cabin,
The vehicle air conditioner, wherein the airway cover is provided with a first opening formed on the ceiling side and a second opening formed on the side wall surface side. A cargo rack is disposed on the side wall surface of the guest room,
2. The vehicle air conditioner according to claim 1, wherein the second opening of the airway cover is provided so as to be positioned above the cargo rack. On the side wall surface of the cabin, there is a window part, and a cargo rack is arranged above the window part,
2. The vehicle air conditioner according to claim 1, wherein the airway cover penetrates the cargo rack, and the second opening is provided on a lower surface side of the cargo rack.

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