KR100410783B1 - Heating apparatus for rear passenger space of bus - Google Patents

Abstract

The present invention relates to a heating apparatus installed for a passenger seat at the rear of a bus, by forming an outside air intake in the passenger seat at the rear of the bus so that the natural indoor inflow of the outside air of the body is made by the air flow according to the pressure distribution around the body formed during the bus driving. , The outside air is introduced through the heat exchanger using the coolant of the engine, and then discharged to the passenger seat behind the bus through the air discharge cover, so that air ducts such as fans and motors or an extension duct to the upper surface of the engine compartment are installed. It is to provide a bus rear passenger seat heating system that can improve the heating performance of the rear passenger seat without a bus.

Description

Heating apparatus for rear passenger space {Heating apparatus for rear passenger space of bus}

The present invention relates to a heating apparatus installed for a passenger seat behind the bus, and more particularly, to form an air intake in the passenger seat behind the bus so that the natural indoor inflow of the outside air of the vehicle body is caused by the air flow according to the pressure distribution around the vehicle body formed when the bus is driven. The outside air is heated by the heat exchanger using the coolant of the engine, and then discharged to the passenger seat behind the bus through the air discharge cover, and to the upper surface of the engine compartment or the blowing means such as a fan and a motor. The present invention relates to a bus rear passenger seat heating apparatus capable of improving heating performance of a bus rear passenger seat without installing an extension duct.

In general, a bus heater using an engine coolant sends the coolant heated by the engine to a heater unit installed under the vehicle floor through a heater pipe, and passes through the vehicle indoor air sucked by the blower fan. It is sent inside the heater duct.

That is, the warm air heated by the heat exchange of the heater unit is distributed to each location of the vehicle interior through the heater duct, thereby making the indoor heating of the bus.

In general, the heater unit is installed to the left and right sides of the vehicle body is connected to the heater pipe that is distributed from the engine, the heater duct is disposed long in the front and rear direction of the vehicle body is mounted on both sides of the interior of the vehicle body under the seat.

In particular, the heater duct is formed with a plurality of discharge ports arranged in the longitudinal direction so that the warmth can be evenly distributed in the vehicle interior.

In the bus heating apparatus as described above, there is an advantage that a uniform temperature distribution can be obtained by distribution of warmth by a heater duct.

On the other hand, due to the bus structure, the upper part of the engine compartment protrudes largely into the vehicle interior to secure the engine mounting space, and a heater duct is not installed on the upper part of the engine compartment, that is, above the rear passenger seat body floor. It was not common.

In addition, as shown in FIG. 4, in the rear of the bus, outside air is inevitably introduced through window gaps or gaps due to pressure distribution around the vehicle body. It is lower than the passenger's room temperature.

That is, in such a bus heating apparatus, not only the warmth heated by the heater unit is discharged to the passenger seat behind the bus, but also the rear portion of the bus is a natural inflow position of the outside air due to the pressure distribution around the vehicle body due to the bus running. Heating performance is not very good.

Accordingly, as shown in FIG. 5, the heater duct 12 is extended rearwardly along the upper surface of the engine compartment 3, but this also adversely affects the heating performance of the center of the room. There is a problem that there is a sharp bending upward portion on the air flow path due to the pressure loss here, there is a problem that can not achieve efficient heating effect because the air flow into the extended heater duct is not smooth.

Accordingly, the present invention has been invented to solve the above problems, by forming an outside air intake in the rear passenger seat of the bus so that the natural indoor inflow of the air outside the body by the air flow according to the pressure distribution around the body formed during the bus run Then, the inflowing outside air is heated through the heat exchange unit using the cooling water of the engine, and then discharged to the passenger seat behind the bus through the air discharge cover, so as to extend the duct to the upper surface of the engine or air blowing means such as a fan and a motor. It is an object of the present invention to provide a bus rear passenger seat heating system which can improve the heating performance of the rear passenger seat without installing.

1 is an installation state of the rear passenger seat heating apparatus according to the present invention,

2 is a sectional view showing a rear passenger seat heating apparatus according to the present invention;

3 is a cross-sectional view taken along the line 'A-A' of FIG.

Figure 4 is a state diagram showing the air inflow state into the bus interior according to the pressure distribution around the vehicle body during the bus run,

5 is a schematic view showing a state in which a heater duct is extended to a bus rear passenger seat;

<Explanation of symbols for the main parts of the drawings>

1: engine 5: floor

11: heater unit 12: heater duct

20: heat exchanger 22, 24: heater pipe

30: air discharge cover 32: warm air discharge

34: grill for warmth discharge 40: outside air intake

42: outside air suction grille 50: filter means

Hereinafter, the present invention will be described with reference to the accompanying drawings.

The present invention for achieving the above object: a heat exchange unit 20 for performing heat exchange with the air passed by using the cooling water heated in the engine (1) above both side bottom floor (5) of the passenger seat behind the bus, The air discharging cover 30 is installed while covering the heat exchange part 20, and the hot air discharging opening 32 is formed at the indoor side, and the air discharging cover 30 is provided at the hot air discharging opening 32. Outside air intake opening 40 formed in the rear side of the passenger car body at the rear of the bus where natural indoor inflow of outside air is made by air flow according to the pressure distribution around the formed body, and the outside air suction grille 42 installed therein; It is characterized in that it comprises a filter means 50 is installed to the outside air suction grill 42 inside.

In particular, the outside air suction grill 42 is characterized in that it is installed detachably from the outside air suction opening (40).

In addition, the heat exchange part 20 is attached to the heater pipes 22 and 24 through which the cooling water heated by the engine 1 flows from the engine 1, and is attached to the surface of the heater pipes 22 and 24 to exchange heat. It is characterized by consisting of a plurality of pins 26 to perform.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a state diagram of the installation of the rear passenger seat heating apparatus according to the present invention, showing a position where the heating apparatus of the present invention for the rear passenger seat of the bus is installed.

As shown in the drawing, since the heating apparatus of the present invention is for heating the rear passenger seat of the bus, it is installed above the body floor 5 at both bottoms of the rear passenger seat of the bus.

The present invention uses a pressure distribution around the vehicle body to allow air outside the vehicle to naturally flow in the rear of the bus while driving the bus, and to discharge air from the inside of the vehicle in all the buses. In the outdoor air flowing into the natural hot air using the cooling water and then discharged to the passenger seat behind the bus, the heating is achieved.

Hereinafter, the configuration of the present invention will be described.

2 is a cross-sectional view showing a rear passenger seat heating apparatus according to the present invention, Figure 3 is a cross-sectional view taken along the line 'A-A' of FIG.

As shown in the drawing, according to the present invention, the heat exchanger 20 performs heat exchange with air passing through the coolant heated in the engine 1 above both side bottom floors 5 of the passenger seat behind the bus, and the heat exchanger. Installed with the part 20 covered therein, the warm air outlet 32 is formed on the interior side, and the air discharge cover 30 having the warm air discharge grille 34 installed at the warm air outlet 32, and the outside of the vehicle body when driving on the bus. Outside air suction port 40 formed in the body side bottom of the bus rear passenger seat and the outside air suction grille 42 installed therein, and the filter installed inside the outside air suction grille 42 so as to allow natural inflow of air. Means 50.

The heat exchange unit 20 is to heat the ambient air passing through the heat exchange, the heater pipes 22 and 24 through which the cooling water distributed from the engine 1 and heated in the engine 1 flows, and this heater It is composed of a plurality of fins 26 attached to the surfaces of the pipes 22 and 24 to perform heat exchange.

In FIG. 3, reference numeral 22 denotes a heater pipe through which hot coolant flows directly from the engine 1, and 24 denotes a heater pipe through which relatively low temperature circulated coolant flows back to the engine 1. Pipes 22 and 24 may be installed together.

As described above, since the heat exchange part 20 uses the heated cooling water of the engine 1, in the present invention, the heater pipe is distributed from the engine 1 to the left and right of the vehicle body, and then the floors 5 of both side bottoms in the passenger seat behind the bus. It is installed so as to pass through the upper side, and the heater pipe passing above the rear passenger seat floor 5 is connected to the existing main heater unit 11.

The heat exchange part 20 is protected by an air discharge cover 30.

The air discharge cover 30 serves to supply the warmth heated by the heat exchanger 20 to the vehicle interior.

In addition, the air discharging cover 30 receives the outside air introduced through the outside air inlet 40 into the inner space, and the outside air passes through the heat exchange part 20.

In the present invention, the outside air intake 40 is to receive the outside air by the air flow according to the pressure distribution around the vehicle body during the bus run, the outside air intake port 40 is a bus that the natural indoor inflow of the outside air by the air flow according to the pressure distribution around the body It is obvious that the rear portion must be formed at a predetermined position, and the front and rear positions of the bus passenger seat are included in the above positions of the bus rear.

The outside air suction grille 42 installed at the outside air suction opening 40 is installed to be inclined so as not to receive resistance from the natural air flowing in the bus, and the outside air suction opening to replace and maintain the filter means 50 installed therein. Attached detachably at 40.

In addition, the outside air suction grill 42 is replaced with a sealing cover (not shown) without an air suction hole in order to prevent deterioration of the air conditioner performance due to the introduction of external hot air during the summer when unnecessary heating is required. desirable.

The filter means 50 is installed to remove dust, odors, moisture, and the like from the outside air introduced through the outside air inlet 40 so that comfortable heating can be realized.

In this way, according to the pressure distribution around the vehicle body formed at the time of running the bus, the outside air intake opening 40 is made of natural inflow of outside air, and after the outside air is heated by the heat exchange unit 20, the air discharge cover 30 By discharging to the rear passenger seat through the bus, it is possible to improve the heating performance of the passenger seat behind the bus without a separate blowing means such as a fan and a motor.

As described above, according to the bus rear passenger seat heating apparatus according to the present invention, the outdoor air intake of the outside of the vehicle body by the air flow according to the pressure distribution around the vehicle body formed at the time of driving the bus by forming an outside air intake in the rear passenger seat of the bus The outside air is heated through the heat exchange unit using the coolant of the engine and then discharged to the passenger seat behind the bus through the air discharge cover, so as to blow the fan and the motor, or to the upper surface of the engine compartment. There is an effect that can improve the heating performance of the passenger seat behind the bus without installing an extension duct.

Claims (3)

And a heat exchanger 20 for performing heat exchange with air passing through the coolant heated by the engine 1 on both side bottom floors 5 of the passenger rear of the bus, and with the heat exchanger 20 covered. Warm air discharge port 32 is formed on the side of the room side, and the air discharge cover 30 having the warm air discharge grille 34 installed therein, and the air flow according to the pressure distribution around the vehicle body formed during the bus run The outside air intake opening 40 formed in the rear passenger seat body side bottom of the rear side of the bus where natural indoor inflow of the outside of the car body is caused by the outside, and the outside air suction grille 42 installed therein, and the outside air suction grille 42 inside. Bus rear passenger seat heating device characterized in that it comprises a filter means 50 is installed. The bus rear passenger seat heating apparatus according to claim 1, wherein the outside air suction grille (42) is detachably installed at the outside air suction opening (40). 2. The heat exchange part (20) according to claim 1, wherein the heat exchange part (20) is provided with heater pipes (22, 24) through which the cooling water heated from the engine (1) is distributed, and the surfaces of the heater pipes (22, 24). Bus rear passenger seat heating, characterized in that consisting of a plurality of pins (26) attached to perform the heat exchange.