JPS622430Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an air conditioning system for toll collection booths at toll collection stations on expressways, etc., and is an air conditioning system that increases cooling capacity during cooling and facilitates maintenance. I will provide a.

Conventionally, as shown in FIG. 1, a toll collection booth on an expressway has an air conditioner 2 mounted on the roof of the toll collection booth 1, and a large roof 3 above it. An air curtain 5 is installed at the counter 4 where fares are handed over, and cold air and warm air are passed through the indoor air outlet 6.
This creates a positive pressure inside the booth, prevents contaminated air from entering from outside, and improves the environment for the collectors. The air conditioner 2 sucks the surrounding air from the suction port 8, passes through the dust collector 9, passes through the evaporator 10, the blower 11, and the electric heater 12, and then passes through the air outlet 13 to the indoor air outlet 6 side. It was designed to send air and blow it out into booth 1. On the other hand, compressor 14
On the side, air around the air conditioner 2 is sucked in from the side by an outdoor blower 15 through an inlet 16 and blown out through an outlet 17 located above. That is, by operating the compressor 14 during cooling, the refrigerant passes through the condenser 17, the capillary tube (not shown), and the evaporator 10, and the cold air from the evaporator 10 is sent to the booth by the blower 11. It is blown out within 1 minute. At this time, the electric heater 12 is de-energized, and the electric heater 12 is energized only during heating to heat the inside of the booth 1.

In this way, in the conventional toll collection booth 1,
Prevention of contaminated air intrusion and air conditioning are performed, but in this case, when cooling, the air conditioner 2 and the large roof 3
There was a lot of heat between them,
Heat exchange efficiency in the condenser 17 deteriorates. On the other hand, since the roof of collection booth 1 is narrow, there are drawbacks such as difficulty in finding footing during maintenance, and other dangers.

The present invention is intended to eliminate the above-mentioned conventional drawbacks, and one embodiment thereof will be described below with reference to FIGS. 3 and 4. In the figure, 20 is a toll collection booth;
21 is an air curtain provided at the window 22;
3 is a heat pump type indoor unit installed on the booth, 24 is a blow-off duct for blowing air inside the booth,
25 is an air intake duct provided through the large roof 26 from the indoor unit 23, 27 is an inlet of this air intake duct 25, and 28 is a connection pipe 29 in which refrigerant liquid and gas side refrigerant pipes are stored. Therefore, the outdoor unit 28 connected to the indoor unit 23 houses a compressor 30, an outdoor heat exchanger 31, an outdoor blower 32, a four-way valve (not shown), and the like. 33 is a suction port, 34 is a blowout port,
Further, the connecting pipe 29 is connected to the lower side of the large roof 26 and along the intake duct 25. The indoor unit 23 has an intake port 3 connected to the intake duct 25.
5. An electric precipitator 36, an indoor heat exchanger 37, an indoor blower 38, and an auxiliary heater 39 used to supplement heating capacity during heating are housed.

In the above configuration, an indoor unit 2 of a heat pump type air conditioner is installed on the roof of the fee collection booth 20.
3 is installed, an air intake duct 25 and a connection pipe 29 running along the lower side of the large roof 26 are provided to connect it to an outdoor unit 28 provided on the large roof 26. On the other hand, the intake duct 25 connects the intake port 27 to the large roof 26.
It is placed higher up in the atmosphere to take in fresh air.

In this way, in the present invention, the outdoor unit 28 is installed on the large roof 26 in order to perform heat pump type air conditioning inside the toll collection booth, so the ventilation effect is improved during cooling and heating, and the condensing capacity and evaporation are improved. Your abilities will improve. In addition, conventionally, warm air generated by condensed heat around an air conditioner flows into the cooling booth, causing discomfort, but this does not affect the user at all. Furthermore, during maintenance, the areas around the indoor unit on the booth and the outdoor unit on the large roof are wide open, making inspection and repair easier.

[Brief explanation of drawings]

Fig. 1 is a front view of an air conditioner for a toll collection booth in a conventional example, Fig. 2 is a block diagram of the conventional air conditioner, and Fig. 3 is an air conditioner for a toll collection booth in an embodiment of the present invention. FIG. 4 is a partially sectional front view of the air conditioner. 20...Toll collection booth, 23...Indoor unit, 24...Blowout duct, 25...Intake duct,
26...Large roof, 28...Outdoor unit, 29...
...Connection piping.

Claims (1)

[Scope of utility model registration request] The air conditioner for the toll collection booth includes an indoor unit with a blow-off duct installed above the booth that blows into the booth, an outdoor unit installed on the large roof, and intake air from the indoor unit taken in from above the large roof. air intake duct for the purpose, indoor unit,
An air conditioner for a heat pump type fee collection booth, which has connection piping that connects an outdoor unit.