JPH053365Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to an air conditioning system for vehicles, particularly construction vehicles.

(Prior art) Conventionally, vehicle air conditioners have been equipped with temperature control means such as a heating heat exchanger, a cooling heat exchanger, and an air mix door, and the temperature has been controlled using a single centrifugal blower. Air was always blown out from the air outlet above. Therefore, it is good when blowing out a mixture of cold and warm air during cooling during the summer or in the middle of the season, but
During heating in winter, the air conditioner's feeling was worsening due to hot heads and cold feet. Centrifugal blowers such as the Sirotskov fan are used because they are small and generate less noise, and the diameter of the impeller is extremely small for the same wind pressure, same air volume, and same rotation speed, which saves on equipment costs and seating area. ing.

(Problem that the invention aims to solve) However, centrifugal blowers cannot switch between forward rotation and reverse rotation in order to select the rotation direction.
The blowing direction was unidirectional. To solve this problem, devices equipped with blowers for cooling and heating have been put into practical use, but they have the disadvantage of being large in size.

Therefore, the purpose of this invention is to allow upward blowing of cold air and downward blowing of warm air.

(Means for Solving Problems) The gist of this invention is to arrange a heating heat exchanger 5 in the interior space 2 and a cooling heat exchanger 6 below the heating heat exchanger. An air conditioner main body 1 comprising a temperature control means 7 for controlling the temperature by regulating the amount of air flowing into the heat exchanger 5, and having an air outlet 13 above an internal space 2 and a connection port 14 below; a blower main body 17 that is provided separately from the main body 1, houses a blower 20 in an internal space 18, and has an inlet port 22 and an air outlet 23 that are connectable to the connection port 14 and are formed in positions facing each other; a connecting means 24 for connecting either the inlet 22 or the outlet 23 of the air blower main body 17 to the connection port 14 of the air conditioner main body 1, and during cooling and intermediate periods, the air blower main body 17
air outlet 23 and the connection port 14 of the air conditioner main body 1
The air introduced into the internal space 2 from the lower connection port 14 is blown out from the upper air outlet 13. During heating, the air inlet 22 of the blower main body 17 is connected to the connection port 14, and the air introduced into the internal space 2 from the lower connection port 14 is blown out from the upper air outlet 13. Air outlet 1
3 into the internal space 2 through the connection port 14
It is characterized by blowing out from the lower air outlet 23 through the air.

(Function) Therefore, in the case of blowing cold air, the outlet of the blower main body is fitted into the connection port of the air conditioner main body, and upward air can be blown from the upper outlet, and in the case of blowing warm air, The suction port of the blower body is inserted into the connection port of the air conditioner body to allow downward air to be blown out, thereby achieving the above object.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings.

In the figure, an air conditioner main body 1 is formed into a substantially vertically elongated shape so as to have a space 2 surrounded by a metal plate or the like to accommodate an air conditioner therein, and is fixed to a support base 3. Inside the space 2 of the air conditioner main body 1, a heat exchanger 5 for heating using vehicle cooling water is installed, leaving a bypass passage 4 above, and below it is a heat exchanger 5 for cooling the evaporator that constitutes the cooling cycle. 6 are disposed respectively, and an air mix door 7 serving as a temperature control means is disposed in the bypass passage 4. The air mix door 7 is moved in conjunction with a hot water valve (not shown) that controls the supply of cooling water to the heating heat exchanger 5.

Above the air conditioner main body 1, there is a horizontal surface 8 and an inclined surface 9, and the horizontal surface 8 has a blower 20 as described below.
The air conditioner has an air flow control switch 10 that gradually increases the air flow from OFF, a thermo control switch 11 that controls the capacity of the cooling heat exchanger 6, and a temperature control lever 12 that controls the air mix door 7. and
Thermo control switch 11 is the cooling cycle
It has an OFF contact and a subsequent ON-OFF temperature control contact for the compressor that constitutes the cooling cycle, and by moving the temperature control lever 12, the mixture ratio of cold air and warm air can be changed. Slope 9
is provided with an upper air outlet 13, and is configured to be able to change its direction as appropriate.

A horizontally long connection port 14 is formed on the front side of the lower part of the air conditioner main body 1, and the connection port 14 is connected to the space below the cooling heat exchanger 6 described above. An inlet 22 or an outlet 23 of a blower main body 17, which will be described below, is fitted into this connection port 14 and connected thereto.

The blower main body 17 is formed in a horizontally elongated manner so as to have a space 18 surrounded by a metal plate or the like to accommodate the blower 20 and the like therein.

Inside the blower main body 17, a scroll 1 is provided.
9. It has a centrifugal blower 20 disposed therein and a motor 21 that rotates the blower 20,
A suction port 22 and a blowout port 23 are formed to protrude in the longitudinal direction on the outside thereof and on the side opposite to the suction port 22 . Both the inlet port 22 and the outlet port 23 have the same shape, and are shaped to fit into the connection port 14 of the air conditioner main body 1.

The inlet 22 communicates with the suction side of the blower 20, and the outlet 23 communicates with the outlet side of the blower 20. Therefore, when the blower 20 rotates in the direction of the arrow in FIG. 2, air is sucked in through the suction port 22 and air is blown out from the blowout port 23.

The blower main body 17 is placed on the support base 3, and then the blower main body 17 and the air conditioner main body 1 are connected by the connecting means 24. Connection means 2
4 has a structure in which a hook portion 24a is fixed to one side and a buckle portion 24b is provided on the other, but the connecting means is not limited to this.

In the above-described configuration, when heating in winter or the like, first, the inlet 22 of the blower main body 17 is inserted into the connection port 14 of the air conditioner main body 1, and the connecting means 24
Fix it with. That is, as shown in FIG.
Switch from OFF to the appropriate air flow rate. This results in
Air inside the vehicle is sucked in through the upper air outlet 13, heated by the heating heat exchanger 5, passed through the inactive cooling heat exchanger 6, and passed through the blower 20 from the air outlet 23 to the footwells in the vehicle interior. It is blown out nearby.

For summer cooling or mid-season cooling, if the blower body 17 is in the state shown in Figure 2, first remove the body 17 and replace the air conditioner body 1 as shown in Figure 5. The air outlet 23 of the air blower main body 17 is inserted into the connection port 14 and connected in the reverse manner.

After that, turn the temperature control lever 12
Switch to the COLD side, switch the thermo control switch 11 from OFF to an appropriate position, and switch the air volume control switch 10 from OFF to an appropriate air volume. As a result, air from the lower part of the vehicle interior is sucked in from the intake port 22 of the blower main body 17, and air from the air outlet 23 of the blower main body 17 is drawn into the air conditioner main body 1.
The cool air is sent to the cooling heat exchanger 6, where it becomes cold air, and the cool air is blown upward from the upper air outlet 13 into the vehicle interior through the heating heat exchanger 5, which is moved as necessary. be.

In addition, in order to prevent the blowout temperature from dropping too much during the intermediate period, the temperature control lever 12 must be adjusted.
If you move the appropriate amount to the HOT side, heating heat exchanger 5
Cooling water for the engine is guided to the heating heat exchanger 5, and the amount of cold air passing through the heating heat exchanger 5 is controlled by the air mix door 7, so that the cold air is appropriately reheated.

(Effects of the invention) As described above, according to this invention, by changing the connection direction of the blower main body to the air conditioner main body, it is possible to obtain upward blowing during cooling and downward blowing during heating. It can demonstrate the basic idea of cooling the head and keeping the feet warm, and can improve the air conditioning feeling.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing an embodiment of this invention;
The figure is a sectional view of the same as above, Figure 3 is a perspective view of the blower body removed from the air conditioner body, Figure 4 is a view seen from the blower outlet direction of the blower body, and Figure 5 is the blowout during cooling. It is a sectional view showing a state. 1...Air conditioner main body, 5...Heating heat exchanger,
6... Cooling heat exchanger, 7... Temperature adjustment means, 1
3... Upper air outlet, 14... Connection port, 17...
Blower main body, 20...Blower, 22...Inlet, 23...Blower outlet.

Claims (1)

[Claims for Utility Model Registration] A heating heat exchanger 5 and a cooling heat exchanger 6 are disposed below the heating heat exchanger in the interior space 2, and an amount of air flowing into the heating heat exchanger 5 is provided. an air conditioner main body 1, which is provided separately from the air conditioner main body 1; , a blower main body 17 in which an air blower 20 is housed in an internal space 18 and an inlet 22 and an outlet 23 connectable to the connection port 14 are formed in positions facing each other; and an inlet 22 of the blower main body 17. or connecting means 24 for connecting either one of the blower outlets 23 to the connection port 14 of the air conditioner main body 1, and during cooling and intermediate periods, the blower main body 17
air outlet 23 and the connection port 14 of the air conditioner main body 1
The air introduced into the internal space 2 from the lower connection port 14 is blown out from the upper air outlet 13. During heating, the air inlet 22 of the blower main body 17 is connected to the connection port 14, and the air introduced into the internal space 2 from the lower connection port 14 is blown out from the upper air outlet 13. Air outlet 1
3 into the internal space 2 through the connection port 14
A vehicle air conditioner characterized in that air is emitted from a lower air outlet 23 through the air.