GB2038726A - Vehicle air conditioning systems - Google Patents

Abstract

An outside broadcast vehicle is described having individually air conditioned control compartments 1, 2 and 3. The control compartments are separated by fixed walls, and there is provided in the vehicle roof space over each of the compartments at least one device 4 for accommodating a compact air conditioning system. <IMAGE>

Description

SPECIFICATION Outside broadcast vehicle The present invention relates to an outside broadcast vehicle, for example a television outside broadcast vehicle.

For the purpose of air conditioning the control rooms of an outside broadcast vehicle it has in the past been usual to install a main air conditioning system in the front or rear of the vehicle. The cooling air delivered by this air conditioning system was conducted aldong the roof of the vehicle and guided through ports in the ceiling into the control rooms, which were partially interconnected.

However, this arrangement has the disadvantage thatthe air conditioning system regulated by means of thermostats in a reference control room, necessarily delivered into the remaining control rooms air which was often either too cold or too hot.

According to the present invention there is provided an outside broadcast vehicle having several control compartments separated by fixed walls and each provided in the vehicle roof with a respective device for accommodating an individual air conditioning system.

The outside broadcast vehicle according to the present invention has the advantage that by permitting the installation of individual relatively compact air conditioning systems in respect of each control room or compartment it is possible to achieve optimum air conditioning of each of the individual compartments. It is of particular advantage that the outside broadcast vehicle can be prepared for the installation of several air conditioning systems without having to give consideration to the question of the environment in which the vehicle will subsequently be placed. Accordingly the number of air conditioning systems can be determined or varied at a later stage.

An embodiment of the invention will now be described in more detail with reference to the accompanying drawings, wherein: Figure 1 is a longitudinal section through an outside broadcast vehicle embodying the invention, and Figure 2 is a section along the line A-A through the vehicle roof of the outside broadcast vehicle.

The outside broadcast vehicle shown in the drawings comprises, for example, three control compartments or rooms separated by fixed walls, these being the picture control compartment 1, the sound control compartment 2 and the technical compartment 3. These compartments can be individually air conditioned by respective so-called compact air conditioning systems arranged in the roof of each of the contrnl compartments.

For the purpose of installing each compact air conditioning system there is provided in the vehicle roof space in respect of each compartment a tank 4 and/or 4' of synthetic plastics material or metal.

According to the air conditioning requirements in a particular situation a respective compact air conditioning system 6 and, or 6' may be installed in one or more of these tanks 4,4'. Adjacent the tank or tanks 4, 4' there is arranged a duct 7 extending horizontally along the roof and which is provided in opposite side walls with ports 8, 8' communicating with the interior of the tanks 4, 4' for connecting with the air outlet of the compact air conditioning systems 6, 6'.

In addition, air outlet ports are provided in the remaining pair of opposite side walls 9, 9' of the duct 7. The inner walls of the duct 7 are provided with sound damping means so that this duct functions as a sound damper.

Underneath the air conditioning system 6, 6' and the duct 7 there is arranged a screening plate consisting of perforated metal sheet, through which the air conducted through the duct 7 can pass out into the respective compartment.

For effecting air circulation there are provided return air suction devices 12, which carry, at the inner side of their suction openings, a dust filter 13.

To provide the air for treatment in the air conditioning system, apertures 14 are provided in the wall of the vehicle through which the outside air is drawn.

For ventilating the electrical control equipment arranged in the chassis sections 16 of the vehicle a further air conditioning system 17 is provided which is arranged at the back of the vehicle. The air is conveyed to the equipment through channels 18 in an underfloor compartment, sweeps through the equipment and is returned to the air conditioning system 17 through a channel 19 situated above the ducts 7 in the vehicle roof.

For the purpose of air conditioning the driver's cabin 21 a further air conditioning system 22 can be arranged above it in a support arrangement 23.

CLAIMS:

1. An outside broadcast vehicle having several control cmpartments separated by fixed walls and each provided in the vehicle roof with a respective device for accommodating an individual air conditioning system.

2. An outside broadcast vehicle according to claim 1, wherein each device comprises a tank.

3. An outside broadcast vehicle according to claim 2, wherein adjacent each tank there is arranged a sound damper.

4. An outside broadcast vehicle according to claim 3, wherein the tank and the sound damper are separated from the respective control compartment by a screen.

5. An outside broadcast vehicle according to claim 4, wherein the screen comprises a perforated metal sheet.

6. An outside braodcast vehicle according to any preceding claim, comprising a further and separate air conditioning system arranged at the rear of the outside broadcast vehicle for air conditioning the equipment within the vehicle.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Outside broadcast vehicle The present invention relates to an outside broadcast vehicle, for example a television outside broadcast vehicle. For the purpose of air conditioning the control rooms of an outside broadcast vehicle it has in the past been usual to install a main air conditioning system in the front or rear of the vehicle. The cooling air delivered by this air conditioning system was conducted aldong the roof of the vehicle and guided through ports in the ceiling into the control rooms, which were partially interconnected. However, this arrangement has the disadvantage thatthe air conditioning system regulated by means of thermostats in a reference control room, necessarily delivered into the remaining control rooms air which was often either too cold or too hot. According to the present invention there is provided an outside broadcast vehicle having several control compartments separated by fixed walls and each provided in the vehicle roof with a respective device for accommodating an individual air conditioning system. The outside broadcast vehicle according to the present invention has the advantage that by permitting the installation of individual relatively compact air conditioning systems in respect of each control room or compartment it is possible to achieve optimum air conditioning of each of the individual compartments. It is of particular advantage that the outside broadcast vehicle can be prepared for the installation of several air conditioning systems without having to give consideration to the question of the environment in which the vehicle will subsequently be placed. Accordingly the number of air conditioning systems can be determined or varied at a later stage. An embodiment of the invention will now be described in more detail with reference to the accompanying drawings, wherein: Figure 1 is a longitudinal section through an outside broadcast vehicle embodying the invention, and Figure 2 is a section along the line A-A through the vehicle roof of the outside broadcast vehicle. The outside broadcast vehicle shown in the drawings comprises, for example, three control compartments or rooms separated by fixed walls, these being the picture control compartment 1, the sound control compartment 2 and the technical compartment 3. These compartments can be individually air conditioned by respective so-called compact air conditioning systems arranged in the roof of each of the contrnl compartments. For the purpose of installing each compact air conditioning system there is provided in the vehicle roof space in respect of each compartment a tank 4 and/or 4' of synthetic plastics material or metal. According to the air conditioning requirements in a particular situation a respective compact air conditioning system 6 and, or 6' may be installed in one or more of these tanks 4,4'. Adjacent the tank or tanks 4, 4' there is arranged a duct 7 extending horizontally along the roof and which is provided in opposite side walls with ports 8, 8' communicating with the interior of the tanks 4, 4' for connecting with the air outlet of the compact air conditioning systems 6, 6'. In addition, air outlet ports are provided in the remaining pair of opposite side walls 9, 9' of the duct 7. The inner walls of the duct 7 are provided with sound damping means so that this duct functions as a sound damper. Underneath the air conditioning system 6, 6' and the duct 7 there is arranged a screening plate consisting of perforated metal sheet, through which the air conducted through the duct 7 can pass out into the respective compartment. For effecting air circulation there are provided return air suction devices 12, which carry, at the inner side of their suction openings, a dust filter 13. To provide the air for treatment in the air conditioning system, apertures 14 are provided in the wall of the vehicle through which the outside air is drawn. For ventilating the electrical control equipment arranged in the chassis sections 16 of the vehicle a further air conditioning system 17 is provided which is arranged at the back of the vehicle. The air is conveyed to the equipment through channels 18 in an underfloor compartment, sweeps through the equipment and is returned to the air conditioning system 17 through a channel 19 situated above the ducts 7 in the vehicle roof. For the purpose of air conditioning the driver's cabin 21 a further air conditioning system 22 can be arranged above it in a support arrangement 23. CLAIMS:

1. An outside broadcast vehicle having several control cmpartments separated by fixed walls and each provided in the vehicle roof with a respective device for accommodating an individual air conditioning system.

2. An outside broadcast vehicle according to claim 1, wherein each device comprises a tank.

3. An outside broadcast vehicle according to claim 2, wherein adjacent each tank there is arranged a sound damper.

4. An outside broadcast vehicle according to claim 3, wherein the tank and the sound damper are separated from the respective control compartment by a screen.

5. An outside broadcast vehicle according to claim 4, wherein the screen comprises a perforated metal sheet.

6. An outside braodcast vehicle according to any preceding claim, comprising a further and separate air conditioning system arranged at the rear of the outside broadcast vehicle for air conditioning the equipment within the vehicle.

7. An outside broadcast vehicle according to any preceding claim, comprising a further device for accommodating a cabin air conditioning system above the driver's cabin.

8. An outside broadcast vehicle substantially as described with reference to the accompanying drawings.