JPS63116975A - Heating apparatus for car - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a heating system for a vehicle, and is particularly suitable for application to a heating system for a diesel-powered railway vehicle.

[Summary of the invention]

This invention provides an in-vehicle air inlet and an outside air inlet in a first duct arranged on the inflow side of the air passing through the heat exchanger,
In addition, by providing an outside air inlet in the second duct arranged on the air outflow side, and by providing an opening/closing means that can independently open and close each of the inlets, a predetermined amount of outside air is always supplied through the vehicle heating system during heating. It is designed so that it can be supplied to the inside of the car.

[Conventional technology]

In the conventional technology, for example, as shown in Japanese Patent Application Laid-Open No. 60-92923, the air inside the car is fed into a heat exchanger to heat it, and then returned to the inside of the car for heating. Something that doesn't think at all, or Jikko 56-4
As shown in Publication No. 9803, outside air and air inside the car are fed into a heat exchanger and heated, and then supplied to the inside of the car to heat the car. When this cannot be done satisfactorily, there is a system in which the outside air intake is closed and only the air inside the car is circulated through the heat exchanger as in the above example to perform heating.

[Problem that the invention seeks to solve]

However, if the air inside the car is circulated as described above and heated for a long period of time, the air inside the car becomes polluted and the discomfort for passengers becomes unbearable.

In view of the above-mentioned points, the present invention provides a heating device for a vehicle that can perform necessary heating even if outside air is always supplied during heating.

[Means for solving problems]

The present invention includes a first duct connected to the heat exchanger on the inflow side of the air passing through the heat exchanger, a second duct connected to the heat exchanger on the outflow side of the air, and the first duct connected to the heat exchanger on the inflow side of the air passing through the heat exchanger. an in-vehicle air inlet and a plurality of outside air inlets provided in each of the second ducts, and a plurality of outside air inlets provided in the second duct;
The present invention relates to a heating device for a vehicle, which includes opening/closing means provided at each of the inlets and opening/closing each inlet.

[Effect]

Therefore, in the summer, the heat transfer path connecting the heat exchanger and the heat source is shut off, the inlet for air inside the car is closed, and the inlet for outside air is opened to ventilate the inside of the car while sending outside air into the inside of the car. be able to.

Additionally, in winter, the inlet for air inside the car is opened, the multiple outside air inlets provided in the first duct are opened half way, and the outside air inlet provided in the second duct is adjusted to open or close depending on the temperature inside the car. Similarly, it is possible to maintain a comfortable temperature inside the car while blowing outside air into the car.

In addition, during the transition period between summer and winter, the inlet for air inside the car is closed.
By opening the outside air inlet provided in the first duct and adjusting the opening/closing of the outside air inlet provided in the second duct depending on the temperature inside the vehicle, the temperature inside the vehicle can be maintained comfortably.

In this way, in any of the above cases, outside air is supplied to the inside of the car, so that the air inside the car is not seriously contaminated.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a heating device for a diesel-powered railway vehicle will be described below with reference to FIGS. 1 to 4.

As shown in FIGS. 1 and 2, a heating device 1 is installed on a vehicle 2.
The duct 3.4 is provided on the roof of the duct 3.4, and a part of the duct 3.4 is housed in a housing 5.

Inside the housing 5, a first
The various elements of the heating device 1 are arranged in the order of the duct 3, the radiator 8, the second duct 4, and the sirocco fan 9. Furthermore, in the center of the housing 5, there is a unit that drives the pair of left and right sirocco fans 9. A motor 10 is provided.

Further, below the left and right ends of the housing 5, as shown in FIG. , are in contact with the outside air with the louver 12 as the boundary. Further, the other end of the third duct 11 has two inlet ports 13a and 13, respectively.
b and 14a, 14b to the first duct 3 and the second duct
They are each communicated with the duct 4. Thus, the outside air
It can flow from the third duct 11 into the first duct 3 and the second duct 4 through the louver 12, respectively.

Next, the heating device 1 communicates with the vehicle interior through a fourth duct 17 for introducing air inside the vehicle into the first duct 3 and a fifth duct 18 for sending air flowing in from the sirocco fan 9 into the vehicle interior. has been done.

Each of the ducts 17 and 18 also extends in the longitudinal direction of the vehicle 2, and the fourth duct 17 is communicated with the first duct 3 through one inlet 19.

Next, as shown in FIG. 2, outside air inlet ports 13a and 13 are arranged at the bottoms of the first duct 3 and the second duct 4, each having a hollow square cross section, along the longitudinal direction of the vehicle 2.
Shutters 21 as shown in FIG. 3, which are driven by a cylinder device 20, are provided at the air intake ports 19, 14a, and 14b, and the inlet air inlet 19 disposed on the side surface of the first duct 3, respectively, as shown in FIG. Mouths 13a, 13b, 14a, 1
4b119 are configured so that they can be opened and closed freely.

That is, the shutter 21 is composed of a plurality of leaves 21a arranged in a row as shown in FIG.
Two swing shafts 24 protruding from both ends of the housing 5 are pivotally supported by the housing 5. Also, each two swing axes 24
An arm 25 protruding from one side of the cylinder device 20 is coupled to a plunger 203 of the cylinder device 20. Thus, the cylinder equipment attached to the housing 5? When the leaf 21 expands and contracts a predetermined length by the compressed air supplied to the cylinder device 20, the leaf 21a swings between the solid line position and the dashed-dotted line position shown in FIG. Mouths 13a, 13b,
14a, 14b and 19 are closed or opened.

Next, each cylinder device 20 is driven by a temperature detection mechanism 2 that detects and determines the temperature of the fourth duct 17 as shown in FIG.
6 is provided, and the 3-point/2-position electromagnetic switching valve 27 is switched based on the command from the temperature detection mechanism 26. In the same figure, reference numerals 2B, 31, E, and P are solenoids that operate the electromagnetic valve 27; temperature sensor, power supply and compressed air generator.

The temperature sensor 31 is provided in the fourth duct 17 as described above, and the temperature it senses is approximately equal to the temperature inside the vehicle.

Next, to describe the operation of the vehicle heating system configured as described above, in summer, the cock 32 shown in Fig. 2 is closed, the cooling water supplied from the engine to the radiator 8 is shut off, and the blower switch is turned on. throw into.

By turning on this blower switch, the inlets 13a, 13
b, 14a and 14b sea? 7 duct 21 opens and the shutter 21 of the inlet 19 closes (see FIG. 4(f)), the outside air sucked into the third duct 11 by the rotation of the sirocco fan 9 is divided into the inlets 13a and 13b. and the first duct 3 and the second duct from 14a and 14b, respectively.
It is introduced into the duct 4.

Next, the outside air in the first duct 3 passes through the radiator 8 and joins with the outside air in the second duct 4, and then the outside air flows out to the fifth duct 18 by the sirocco fan 9 and is then sent into the vehicle.

Next, in winter, if the cock 32 shown in FIG.
The shutter 21 of a is closed.

In addition, a known sequencer within the temperature detection mechanism 26 operates, and the shutter 21 of the inlet 14a closes when the vehicle interior temperature is 16°C or lower and opens when the temperature is 20°C or higher.
The shutter 21 of 4b closes when the temperature inside the vehicle is below 20°C, and opens when the temperature inside the car is above 25°C.

Thus, if the heating switch is turned on when the temperature inside the vehicle is below 16 DEG C., each inlet will be in the state shown in FIG. 4(a). Therefore, the air introduced from inside the vehicle is heated by the radiator 8, and since only the inlet 13b is open, all outside air passes through the radiator 8 after being throttled. Therefore, the interior of the car is quickly heated.

When the temperature inside the vehicle exceeds 20℃, each inlet will close as shown in Figure 4 (b).
), in addition to the above-mentioned outside air passing through the radiator 8, almost the same amount of outside air as this outside air is introduced into the second duct 4 without passing through the radiator 8. Therefore, the temperature rise inside the car will be gradual.

Furthermore, if the temperature inside the vehicle exceeds 25℃, each inlet will be closed as shown in Figure 4 (
Since the situation shown in C) is reached, the amount of outside air introduced into the second duct 4 without passing through the radiator 8 increases to twice the amount in the above case. Therefore, the temperature inside the car hardly increases.

Next, if the winter heating switch is turned on when the temperature inside the car is 25°C or higher, each inlet will be in the state shown in Figure 4 (C), so the temperature inside the car will almost rise as described above. Never.

If the temperature inside the car falls below 20°C, each inlet will be in the state shown in FIG. 4(b), so the inside of the car will be slowly warmed to return the temperature inside the car to its original state.

Further, if the temperature inside the vehicle falls below 16° C., each inlet enters the state shown in FIG. 4(a), so that the interior of the vehicle is rapidly heated to restore the temperature inside the vehicle.

Next, when heating is required during the transition period between summer and winter, the transition period heating switch is turned on. When this happens, the shutters 21 of the inlet ports 13a and 13b open and the shutter 21 of the inlet port 19 closes by turning on this switch.

In addition, the sequencer operates, and the shutter 21 of the inlet 14a closes when the inside temperature of the car is 16°C or lower, and opens when the inside temperature of the car is 20°C or higher (and the shutter 21 of the inlet 14b closes when the inside temperature of the car is 20°C or lower, Opens when the temperature is over 25℃.

Thus, if the heating switch is turned on when the temperature inside the vehicle is below 16 DEG C., each inlet will be in the state shown in FIG. 4(d). Therefore, all of the introduced outside air passes through the radiator 8, and the interior of the vehicle is rapidly heated. Note that in this case, since it is different from winter, warm air from inside the car is not introduced into the heating system at all.

Next, if the temperature inside the car exceeds 20°C while the heating system is in operation, each inlet will be in the state shown in FIG. 4(e), so some of the outside air passing through the radiator 8 will without being introduced into the second duct 4. Therefore, the temperature rise inside the car will be gradual.

Furthermore, if the temperature inside the vehicle exceeds 25℃, each inlet will be closed as shown in Figure 4 (
The state shown in f) is reached. Therefore, the temperature inside the car hardly increases.

Next, when the temperature inside the car is 25 degrees Celsius or higher and the off-season heating switch is turned on, each inlet will be in the state shown in Figure 4(f), so the temperature inside the car will hardly rise as described above. .

If the temperature inside the vehicle falls below 20° C., each inlet will be in the state shown in FIG. 4(e), and the interior of the vehicle will be slowly warmed to return the temperature inside the vehicle to its original state.

Further, if the temperature inside the vehicle falls below 16° C., each inlet enters the state shown in FIG. 4(d), so that the interior of the vehicle is rapidly heated to restore the temperature inside the vehicle.

As described above, in the vehicle heating device according to the present invention,
Fresh outside air is always supplied into the car through this heating system. Therefore, even during heating, the air inside the vehicle is prevented from being contaminated and passengers will not feel uncomfortable.

Note that the one motor 10 that drives the two sirocco fans 9 is rotated at a constant temperature during the operation of the heating device. Therefore, the amount of hot air flowing into the car is always constant. Further, the opening and closing of the shutter 21 is limited to two stages, fully open and fully closed, and there is no stage such as half open.

Although the embodiments of the present invention have been described above, the embodiments described above do not limit the present invention, and various changes can be made based on the technical idea of the present invention.

For example, the above-mentioned heating system was configured to be started by turning on the winter heating switch or the off-season heating switch, and then be automatically adjusted. may be configured.

In this case, when the winter heating switch is turned on, the shutter 21 is placed in the state shown in FIG. 4(a), when the off-season heating switch is turned on, the shutter 21 is placed in the state shown in FIG. Shutter 2 is activated by the input of
1 is constructed so that it is in the state shown in FIG. 4(f).

Next, in the case of the above embodiment, the inlet 13b is always kept open during operation of the hot air heating device.

Therefore, the shutter 21 of the introduction port 13b can be omitted.

Further, in the above embodiment, the cock 32 is opened and closed manually, but the cock 32 may be a solenoid valve, and this solenoid valve may be operated by opening and closing a switch. It is also possible to configure the electromagnetic valve to be closed and opened, respectively, by turning on the heating switch.

〔Effect of the invention〕

Since the present invention has the above-described configuration, fresh air can always be supplied into the vehicle during heating.

Therefore, there is no inconvenience caused to the passengers due to the dirty air inside the car.

Further, the device of the present invention has a simple structure and can be adjusted in various ways as required.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment in which the present invention is applied to a heating system for a diesel-powered railway vehicle. Figure 1 is a perspective view of the heating system, and Figure 2 is a plan view of the heating system. FIG. 3 is an explanatory diagram of the shaft driving means, and FIG. 4 is an explanatory diagram of the operation of the heating device. In addition, in the symbols used in the drawings, 1---------------1 heating device 3.
・−・−・−・−・−−−・First duct 4−・・
−・・−−−−−・−−−−−・・Second duct 8・−
・・−・−・−・−・Radiator (heat exchanger) 13a,
13bp14a, 14b, 19-・------
−−−−−−−−1・・Inlet port 20−−−−−−−−−
--- Cylinder device (driving means) 21 ---
−−・−・Shutter (opening/closing means) 26・−−111−
・------1.-Temperature detection mechanism.

Claims (1)

[Claims] 1. A first duct connected to the heat exchanger on the inflow side of the air passing through the heat exchanger, and a second duct connected to the heat exchanger on the outflow side of the air; An in-vehicle air inlet and a plurality of outside air inlets each provided in the first duct;
A heating device for a vehicle, comprising: a plurality of outside air inlets provided in the second duct; and opening/closing means provided in each of the inlets and opening/closing each inlet. 2. The vehicle according to claim 1, further comprising: a temperature detection mechanism for detecting and determining the temperature of the air inside the vehicle; and a drive means for driving the opening/closing means of the inlet based on a command from the temperature detection mechanism. Vehicle heating system.