JP2002114023A - Seat air conditioner for truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply air-condition a seat provided in the cabin of a truck by utilizing an existing air conditioner duct for feeding the air-conditioning air to a heat retaining vessel or an air blowout port for a bed in the cabin of the truck in the seat air conditioner for the truck applying air-conditioning by utilizing the air-conditioning air of a cooling/heating device. SOLUTION: This seat air conditioner is provided with an air intake port introducing the air-conditioning air, an air passage communicated with the air intake port, an air outlet communicated with the air passage to blow out the air-conditioning air, a seat arranged in the cabin, the cooling/heating device arranged at the front section of the cabin, the air conditioner duct connected to the cooling/heating device at one end and connected to the heat retaining vessel arranged on the side of the seat at the other end, and a branch pipe branched from the middle of the air conditioner duct and connected to the air intake port of the seat.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truck seat air conditioner for air conditioning a seat provided in a truck cabin by using conditioned air of a cooling and heating device.

[0002]

2. Description of the Related Art Conventionally, it has been required to warm or cool a seat provided in a passenger compartment of a truck or a bus to improve comfort when a passenger sits on the seat. In order to heat or cool a seat in a vehicle compartment, for example, a Peltier element is used, or conditioned air of a cooling / heating device in the vehicle compartment is used. When using a cooling and heating device, it is necessary to install a seat air conditioner in accordance with the specific structure of a truck or bus vehicle. As a bus seat air conditioner, for example, a bus air conditioner disclosed in JP-A-8-175157 is known as shown in FIG.

[0003] In the figure, a large number of seats 102 are arranged in a passenger compartment 101 of a bus at intervals in the front-rear direction. The sheet 102 has an air intake 1 for taking in conditioned air.
An air passage 104 is provided inside and communicates with the air intake port 103 to carry the conditioned air, and an air outlet 105 that communicates with the air passage 104 and blows out the conditioned air. The cooling / heating duct 10 is arranged along the large number of sheets 102 arranged.
6 is installed on the floor 108. One end of the cooling / heating duct 106 is connected to an existing cooling / heating device (not shown).

The cooling / heating duct 106 is provided with a large number of sheets 10.
2, and a connection duct 107 is vertically provided from the cooling / heating duct 106 so as to correspond to each sheet 102. The distal end 107A of each connection duct 107 is
2 air intake 103.

[0005]

However, in the conventional bus seat air conditioner, in order to air-condition each seat 102 by using an existing air conditioner, the air conditioner must be connected to the air conditioner duct 106 and the air conditioning duct 106. It is necessary to install the duct 107 below the seat 102 exclusively.

In order to connect this dedicated cooling / heating duct 106 to the air intake 103 of each sheet 102 via the connection duct 107, the cooling / heating duct 106 is installed on the floor 108 and the connection duct 107 is set upright. Air conditioning duct 1
06 is required, which is large-scale. It is difficult to design a vehicle layout by directly applying such a bus seat air conditioner to a large truck cabin seat, and in particular, in the case of a large truck, an existing air conditioner arranged in front of the cabin is used. In some cases, a cooling / heating device is provided with a heat insulating container or an air outlet for a bed through an air conditioning duct, but the air conditioning duct is a function for supplying warm or cold air to the heat insulating container or the air outlet for the bed. It was not used for any other purpose.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an existing air-conditioning duct for supplying air-conditioning air to a heat insulating container or a bed air outlet in a truck cabin. The object of the present invention is to provide a truck seat air conditioner which can easily air-condition a seat by utilizing the air conditioner.

[0008]

The invention according to claim 1 is
An air intake that takes in conditioned air, an air passage that is provided in communication with the air intake, and an air outlet that blows out conditioned air that communicates with the air passage are arranged in the vehicle interior. Air conditioning duct, one end of which is connected to the cooling and heating device arranged at the front part of the cabin, the other end of which is connected to a heating container arranged at the side of the seat. A branch pipe that branches off from the middle of the air-conditioning duct and is connected to the air intake of the sheet.

According to a second aspect of the present invention, there is provided an air intake for taking in conditioned air, an air passage provided in communication with the air intake, and air for blowing conditioned air in communication with the air passage. Having an outlet, a seat disposed in the passenger compartment, a cooling / heating device disposed in a front portion of the passenger compartment, disposed through a side of the seat, and one end connected to the cooling / heating device. An air conditioning duct provided at the other end with an air outlet for a bed disposed in the vehicle interior, and a branch pipe branched from the middle of the air conditioning duct and connected to an air intake of the seat. It is characterized by having.

According to a third aspect of the present invention, in the seat air conditioner for trucks according to the first or second aspect, conditioned air is supplied to a branch portion of the air conditioning duct from the branch pipe to the branch portion of the air conditioning duct. A switching valve is provided for switching so as to flow to one of the more downstream portion and the branch pipe. The invention according to claim 4 includes an air intake port for taking in conditioned air, an air passage provided in communication with the air intake port, and an air outlet communicating with the air passage and blowing out conditioned air. Has, a seat arranged in the cabin, a cooling / heating device arranged in front of the cabin, one end connected to the cooling / heating device, and the other end connected to a warming container arranged on the side of the seat. A first air-conditioning duct connected to the air conditioner is disposed at a side of the seat, one end is connected to the cooling and heating device, and an air outlet for a bed disposed in the vehicle interior is provided at the other end. The second
An air-conditioning duct, a first branch pipe branched from the middle of the first air-conditioning duct and connected to the air intake of the seat, and a sheet branched from a middle of the second air-conditioning duct. A second branch pipe connected to the air intake of the first air-conditioning duct and the second air-conditioning duct is provided from the first air-conditioning duct to the second air-conditioning duct.
And a switching valve for opening one of the air conditioning ducts.

(Function) In the first aspect of the present invention,
The conditioned air is supplied from the cooling / heating device to the heat retaining container via the air conditioning duct. The conditioned air is branched from the air conditioning duct to a branch pipe. The conditioned air reaches the air intake of the sheet, air-conditions the sheet through the air passage of the sheet, and is discharged from the air outlet to the outside of the sheet.

According to the second aspect of the present invention, the first aspect is provided.
The same operation as the described invention occurs. According to the third aspect of the invention, when handling the truck seat air conditioner according to the first aspect, the conditioned air is sent to either the heat retaining container or the seat by switching the switching valve. Further, when handling the truck seat air conditioner according to the second aspect, the conditioned air is sent to either the bed air outlet or the seat by switching operation of the switching valve.

According to the fourth aspect of the present invention, either the first air conditioning duct or the second air conditioning duct is selected by the switching operation of the switching valve. When the first air-conditioning duct is selected, air-conditioned air is supplied to at least one of the heat retaining container and the sheet.

When the second air conditioning duct is selected,
Air-conditioned air is supplied to at least one of a bed air outlet and a sheet.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

One embodiment of a truck seat air conditioner according to the first and third aspects of the present invention (hereinafter referred to as "first embodiment") will be described with reference to FIGS. In the figure, a cooling / heating device 4 is arranged in a vehicle compartment 2 of a truck 1 at a front portion 3A of a floor 3 thereof. The cooling / heating device 4 includes a heating unit 5, a cooling unit 6, and a blowing unit 7. The heating unit 5 includes a heater 8 and a plate-like switching door 9 rotatably provided near an end 8A of the heater 8.
And The cooling / heating device 4 has a cool air supply port 4A.
, A warm air supply port 4B and an air return port 4C. The cool air supply port 4A and the warm air supply port 4B are located on both sides of the heater 8, and the air return port 4C is provided in the blower 7. The cooling unit 6 has an evaporator 6 </ b> A, and is located between the heating unit 5 and the blower unit 7. In the cooling mode, the switching door 9 is at the position (1) in FIG. 4, and the cool air generated by cooling by the cooling unit 6 flows to the cool air supply port 4A as indicated by the arrow (2). It has become. In the heating mode, the switching door 9 is at the position (b1) in FIG. 4 (indicated by a dotted line), and the warm air generated by heating by the heater 8 is supplied to the warm air supply port as shown by the arrow (b2). 4B.

A seat 10 is arranged at the center of the truck 1 in the passenger compartment 2. The seat 10 includes a seat cushion 10A and a seat back 10B. From seat cushion 10A to seat back 1
The air passages 11 are provided inside them toward 0B. The air passage 11 is conditioned air (cold air or warm air)
And is composed of a flat trunk road 11A having a quadrangular cross section along the front-rear direction, and a plurality of thin branch pipes 11B branched from the middle of the trunk road 11. The trunk road 11A is linear, and the base end thereof has a seat cushion 10A.
An air intake 12A for taking in conditioned air is formed at the front end 10C of the
D is closed. An air outlet 13 for blowing out conditioned air is formed at each end of the plurality of branch pipes 11B. Therefore,
The air inlet 12 communicates with the air passage 11,
Is connected to an air outlet 13.

On the side of the sheet 10, there is arranged a heat retaining container 14 composed of a hot and cool box having an open upper part. The heat retaining container 14 has substantially the same height as the seat cushion 10A of the seat 10, and has a quadrangular side portion 14A having a heat retaining gap through which conditioned air is supplied;
Bottom portion 14B. A cold air inlet 14C and a warm air inlet 14D are provided on the front side of the side portion 14A of the heat retaining container 14.
And a switching dial 14E for selecting whether the difference is between the cold air inlet 14C and the warm air inlet 14D.

The cooling / heating device 4 and the warming container 14 are connected via an air conditioning duct 21 (a cool air supply pipe 15 and a warm air supply pipe 16) and a return duct 17. That is,
One ends 15A and 16A of the cold air supply pipe 15 and the warm air supply pipe 16 are connected to the cold air supply port 4A and the warm air supply port 4B of the heat retaining container 14, respectively.
Are connected to each other, and a cold air supply pipe 15 and a warm air supply pipe 16 are connected.
The other end 15B, 16B of the cooling air inlet 14
C and the warm air inlet 14D. The return duct 17 is connected from the heat retaining container 14 to the blower 7 of the cooling / heating device 4.

The air conditioning duct 21 is adjacent to the seat cushion 10A of the seat 10 at substantially the same height.
A flat branch pipe 18 having a quadrangular cross section branches from the middle of the air conditioning duct 21 (the cool air supply pipe 15 and the warm air supply pipe 16). The branch pipe 18 is placed substantially horizontally, and its connection port 1
8A is connected to the air intake 12 of the sheet 10.
A switching valve 20 is provided at a branch 19 of the air-conditioning duct 21 (the cold air supply pipe 15 and the warm air supply pipe 16) from the branch pipe 18. The switching valve 20 is configured to switch the conditioned air so as to flow to either the downstream portion of the branch portion 19 of the air conditioning duct 21 or the branch pipe 18.

Next, the operation of the present embodiment will be described. By the switching operation of the switching valve 20, the conditioned air is sent to either the heat retaining container 14 or the seat 10. When the switching valve 20 has been switched to the side of the heat retaining container 14, the air conditioning duct 21 (the cold air supply pipe 1)
5, the conditioned air (cool air or warm air) is supplied to the heat retaining container 14 via the warm air supply pipe 16).

On the other hand, when the switching valve 37 is switched to the side of the seat 10, conditioned air (cool air or warm air) is supplied from the air conditioning duct 21 (the cold air supply pipe 15, the warm air supply pipe 16) to the branch pipe 18. Is done. The conditioned air reaches the air intake port 12 of the seat 10 and the air passage 1 of the seat 10
The sheet 10 is air-conditioned through 1 and discharged from the air outlet 13 to the outside of the sheet 10.

According to the above configuration, the following effects can be obtained. In a vehicle layout in which a warming container 14 is installed in a cabin 2 of a truck 1 via air conditioning ducts 21 (cool air supply pipes 15 and warm air supply pipes 16), an existing cooling / heating device 4 and an existing air conditioning duct 21 are used. Thereby, the heat retaining container 14 or the sheet 10 can be air-conditioned.

By using the existing cooling / heating device 4 and the air conditioning duct 21 used for the heat retaining container 14, the piping from the air conditioning duct 21 to the seat 10 is simplified, and the vehicle in the cabin 2 of the truck 1 A truck seat air conditioner matched to the layout can be easily configured. In addition, by the switching operation of the switching valve 20, the conditioned air is sent to either the heat retaining container 14 or the seat 10. Therefore, air conditioning of the seat 10 can be performed only when necessary, and a variety of living conditions of the vehicle compartment 2 can be secured with a simple structure.

Furthermore, by using the air blower 7 of the existing cooling and heating device 4, it is not necessary to install a new air blower on the seat 10. In the present embodiment, the branch pipe 18 of the air conditioning duct 21 is connected to the air intake port 1 of the sheet 10.
2, the air conditioning duct 21 (the cold air supply pipe 15 and the warm air supply pipe 16) is connected to the air passage 11.
By utilizing the fact that it is adjacent to the zero seat cushion 10A at substantially the same height, the branch pipe 18 of the air-conditioning duct 21 and the main path 11A of the air passage 11 of the seat 10 are integrated, and a part of the seat 10 is formed. An embedded L-shaped branch pipe can also be formed. Thus, the structure of the branch pipe can be further simplified, and the installation of the branch pipe can be simplified.

In this embodiment, the case where the switching valve is provided at the branch portion of the air-conditioning duct from the branch pipe has been described, but the switching valve is not provided, and the invention according to claim 1 is not provided. A related truck seat air conditioner can also be configured. In this case, the conditioned air is carried from the cooling / heating device 4 to the warming container 14 via the air conditioning duct 21 (the cool air supply pipe 15 and the warm air supply pipe 16), and at the same time, is carried to the seat 10 to air-condition the seat 10. I do.

An embodiment of a truck seat air conditioner according to the second and third aspects of the present invention (hereinafter referred to as "second embodiment") will be described with reference to FIGS. In the second embodiment, the same components as those in the first embodiment will be denoted by the same reference numerals, and description thereof will be omitted, and portions different from the first embodiment will be described. Air conditioner 4
Comprises a heating unit 5, a cooling unit 6, and a blowing unit 7. The heating unit 5 includes a heater 8 and a plate-like switching door 9 rotatably provided near an end 8A of the heater 8. The air conditioner 4 is provided with an air supply port 4D. The cooling unit 6 has an evaporator 6 </ b> A, and is located between the heating unit 5 and the blower unit 7. In the cooling mode, the switching door 9 is at the position (C1) in FIG. 4, and the cool air generated by cooling by the cooling unit 6 flows to the air supply port 4D as shown by the arrow (C2). It has become. In the heating mode, the switching door 9 is at the position (d1) in FIG. 4 (indicated by a dotted line), and the warm air generated by heating by the heater 8 is supplied to the air supply port as shown by the arrow (d2). It is designed to flow in 4D.

A seat 10 is arranged at the center of the truck 1 in the passenger compartment 2. The structure of the seat 10 is basically the same as that of the first embodiment, but is different from the first embodiment.
The trunk road 11A is straight, while the trunk road 1A is straight.
1E has an L-shape bent at a right angle. Trunk road 1
An air intake 12A for taking in conditioned air is formed at a base end of 1E at a side portion 10D of the seat cushion 10A, and a distal end 11D of the trunk road 11E is closed.

One end 31A of a flat air conditioning duct 31 is connected to an air supply port 4D of the cooling / heating device 4. The air-conditioning duct 31 passes by the side of the seat 10 and has an opening / closing lever 32 mounted in the middle thereof. An air outlet 33 for a bed is provided at the other end 31B of the air conditioning duct 31. The air outlet 33 for the bed is a rear panel side 34A of the bed portion 34 in the passenger compartment 2.
It is arranged above.

A flat branch pipe 35 having a quadrangular cross section is branched from the middle of the air conditioning duct 31. The branch pipe 35
It is placed substantially horizontally, and its connection port 35A is connected to the air intake port 12 of the sheet 10. A switching valve 37 is provided at a branch portion 36 of the air conditioning duct 31 with the branch pipe 35.
The switching valve 37 supplies the conditioned air to the branch portion 36 of the air conditioning duct 31.
The structure is such that the flow is switched so as to flow to one of the downstream portion and the branch pipe 35.

Next, the operation of the present embodiment will be described. By the switching operation of the switching valve 37, the conditioned air is sent to either the air outlet 33 for the bed or the seat 10. When the switching valve 37 is switched to the side of the air outlet 33 for the bed, the air-conditioned air whose temperature has been adjusted from the cooling / heating device 4 to the air outlet 33 for the bed via the air conditioning duct 31. (Cold or warm air).

When the switching valve 37 is switched to the side of the seat 10, the conditioned air whose temperature has been adjusted reaches the air intake port 12 of the seat 10 and the air passage 1 of the seat 10.
The sheet 10 is air-conditioned through 1 and discharged from the air outlet 13 to the outside of the sheet 10. According to the above configuration,
The following effects are obtained. In a vehicle layout in which an air conditioning duct 31 for an air outlet 33 for a bed is installed in the cabin 2 of the truck 1, the existing cooling and heating device 4 and the existing air conditioning duct 31 are used to make a bed. The air outlet 33 or the seat 10 can be air-conditioned.

Then, by using the existing cooling / heating device 4 and the air conditioning duct 21 used for the air outlet 33 for the bed, the piping from the air conditioning duct 21 to the seat 10 is simplified, and A truck seat air conditioner that matches the vehicle layout of the vehicle compartment 2 can be easily configured. In addition, the conditioned air is sent to either the air outlet 33 for the bed or the seat 10 by the switching operation of the switching valve 20. Therefore, air conditioning of the seat can be performed only when necessary, and a variety of living conditions in the vehicle compartment can be secured with a simple structure.

Further, by using the air blower 7 of the existing cooling / heating device 4, there is no need to install a new air blower on the seat 10. In the present embodiment, the branch pipe 18 of the air conditioning duct 21 is connected to the air intake port 1 of the sheet 10.
The air-conditioning duct 2 is connected to the air passage 11 through the air-conditioning duct 2A.
1 branch pipe 35 and trunk 1 of air passage 11 of seat 10
It is also possible to form an L-shaped branch pipe in which the sheet 10 is partly embedded in the sheet 10 by integrating the 1A with the 1A. This allows
The structure of the branch pipe can be simplified, and the installation of the branch pipe can be simplified.

In the present embodiment, the case where the switching valve is provided at the branch portion of the air conditioning duct from the branch pipe has been described. It is also possible to configure the truck seat air conditioner according to the present invention. In this case, the conditioned air is conveyed from the air conditioner 4 to the air outlet 33 for the bed via the air conditioning duct 31, and at the same time, the seat 10
To air-condition the seat 10.

Referring to FIGS. 7 and 8, one embodiment (hereinafter, referred to as "third embodiment") of a truck seat air conditioner according to the fourth aspect of the present invention will be described. In the third embodiment, the same components as those in the first and second embodiments are denoted by the same reference numerals, description thereof will be omitted, and portions different from the first and second embodiments will be described.

In the figure, in the cabin 2 of the truck 1,
A cooling / heating device 41 is arranged at a front portion 3A of the floor 3. The cooling / heating device 41 includes a heating unit 5, a cooling unit 6, and a blowing unit 7. The heating unit 5 includes a heater 8,
A plate-like switching door 9 rotatably provided near the end 8A of the heater 8 is provided. The cooling / heating device 4 is provided with a cool air supply port 4A, a warm air supply port 4B, an air return port 4C, and an air outlet 4D. The cool air supply port 4A and the warm air supply port 4B are located on both sides of the heater 8, and the air return port 4C is provided in the blower 7. The cooling unit 6 has an evaporator 6 </ b> A, and is located between the heating unit 5 and the blower unit 7. In the cooling mode, the switching door 9 is located at the position (e1) in FIG. 8, and the cool air cooled by the cooling unit 6 is supplied to the cool air supply port 4A and the arrows (e2) and (e2). It flows to the air supply port 4D. In the heating mode, the switching door 9 is at the position (F1) in FIG. 4 (indicated by a dotted line). In the heating mode heated by the heater 8, the switching door 9 is in the heating mode as indicated by an arrow (F2). It flows to the warm air supply port 4B and the air supply port 4D.

A seat 10 is arranged at the center of the truck 1 in the passenger compartment 2. The seat 10 includes a seat cushion 10A and a seat back 10B. From seat cushion 10A to seat back 1
The air passages 11 are provided inside them toward 0B. The air passage 11 is conditioned air (cold air or warm air)
It is composed of a flat trunk road 11F having a quadrangular cross section along the front-rear direction, and a plurality of thin branch pipes 11B branched from the middle of the trunk road 11F. Trunk road 11F,
Air inlets 12B, 12 for taking in conditioned air at its base end
C is formed, and the terminal end 11D of the trunk road 11F is closed. Each end of the plurality of branch pipes 11B forms an air outlet 13 for blowing out conditioned air. Therefore, the air intakes 12B and 12C communicate with the air passage 11 and the air passage 1
1 is connected to an air outlet 13.

On the side of the sheet 10, there is arranged a heat retaining container 14 composed of a hot and cool box having an open upper part. The structure of the heat retaining container 14 is the same as that of the first embodiment, and a description thereof will be omitted. The cooling / heating device 41 and the heat retaining container 14 are provided with the air-conditioning duct 2 described in the first embodiment.
1 (the cold air supply pipe 15 and the warm air supply pipe 16) are connected via the same first air conditioning duct 42 and return duct 17. That is, the cool air supply port 4A and the warm air outlet 4A
B, one end 15A of each of the cold air supply pipe 15 and the warm air supply pipe 16,
The other ends 15B and 16B of the cold air supply pipe 15 and the warm air supply pipe 16 are connected to the cold air inlet 14C and the warm air inlet 14D of the heat retaining container, respectively. The return duct 17 is connected to the cooling / heating device 4
Are connected to the air blower 7 of FIG.

The first air conditioning duct 42 is adjacent to the seat cushion 10A of the seat 10 at substantially the same height. A flat branch pipe 18 having a quadrangular cross section is branched from the middle of the first air conditioning duct 42. The branch pipe 18
It is placed substantially horizontally, and its connection port is connected to the air intake port 12B of the sheet 10. A first switching valve including a switching valve 20 is provided at a branch 19 between the first air conditioning duct 42 and the branch pipe 18. The switching valve 20 controls the conditioned air to the first
The air-conditioning duct 42 has a structure in which the air-conditioning duct 42 is switched so as to flow to either the downstream part of the air-conditioning branch part 19 or the branch pipe 18.

One end 43A of a second air-conditioning duct 43 similar to the air-conditioning duct 31 described in the second embodiment is connected to the air supply port 4D of the cooling / heating device 4. The structure of the second air-conditioning duct 43 and the air outlet 33 for the bed is the same as that of the second embodiment, and the description thereof is omitted.
A flat branch pipe 35 having a quadrangular cross section is branched from the middle of the second air conditioning duct 43. The branch pipe 35 is placed substantially horizontally, and is connected to the air intake port 12C of the sheet 10.

A second switching valve including a switching valve 37 is provided at a branch portion 36 of the second air conditioning duct 43 with the branch pipe 35. The switching valve 37 is configured to switch the conditioned air so as to flow to either the downstream portion of the branch portion 36 of the air conditioning duct 43 or the branch pipe 35. Then, a third switching valve 44 is arranged from the first air conditioning duct 42 to the second air conditioning duct 43. The third switching valve 44 opens one of the first air conditioning duct 42 and the second air conditioning duct 43.

However, in the present embodiment, the third
The switching operation of the switching valve 44 of the first air conditioning duct 4
Either the second or second air conditioning duct 43 is selected. When the first air-conditioning duct 42 is used, as described in the first embodiment, the air-conditioning air is sent to either the heat retaining container 14 or the seat 10 by the switching operation of the switching valve 20.

When the second air-conditioning duct 43 is used, as described in the second embodiment, the switching operation of the switching valve 37 causes the air outlet 33 for the bed or the seat 1 to be switched.
The air-conditioned air is sent to any one of 0. According to the configuration as described above, in addition to the effects of the first and second embodiments, by selecting either the first air conditioning duct 42 or the second air conditioning duct 43 by the third switching valve 44, When the air outlet 33 for the bed and the container 14 for heat insulation are simultaneously installed, either the air outlet 33 for the bed or the container 14 for heat insulation is used only when necessary, and the diversification of the living conditions of the passenger compartment 2 Is achieved.

In this embodiment, the branch pipe 18 of the first air conditioning duct 42 is connected to the air passage 11 via the air intake port 12B, and the branch pipe 35 of the second air conditioning duct 43 is connected to the branch pipe 35 of the second air conditioning duct 43. Although connected to the air passage 11 via the air intake port 12C, the first air conditioning duct 42 and the second
Air conditioning duct 43 of the seat 10 of the seat 10
Using the fact that it is adjacent to A at almost the same height,
1F, the branch pipes 18 and 35 can be integrated, and a part thereof can be embedded in the sheet 10. Thus, the structure of the branch pipe can be further simplified, and the installation of the branch pipe can be simplified.

Further, in the present embodiment, the branch pipes 18 of the first air conditioning duct 42 and the second air conditioning duct 43,
Although the case where the switching valve is provided in the branch portions 19 and 36 with the 35 has been described, the switching valve may not be provided. In this case, the conditioned air is supplied to the cooling / heating device 4.
Is transported to the heat-insulating container 14 via the first air-conditioning duct 42 and is transported to the bed air outlet 33 via the second air-conditioning duct 43, Air conditioning.

[0047]

According to the first aspect of the present invention, an existing cooling / heating device and an existing air-conditioning duct are used in a vehicle layout in which a heat insulating container is installed in a vehicle cabin through an air-conditioning duct. Thereby, the heat retaining container or sheet can be air-conditioned.

Further, by using the existing cooling and heating device and the air conditioning duct used for the heat retaining container, the piping from the air conditioning duct to the seat is simplified, and the truck seat matched to the vehicle layout of the truck cabin is used. The air conditioner can be easily configured.

According to the second aspect of the present invention, an air outlet for a bed is provided instead of the heat retaining container according to the first aspect,
An effect similar to that of the first aspect is obtained. According to the third aspect of the invention, in the case of the first aspect of the invention, the conditioned air is sent to one of the warming container and the seat by the switching operation of the switching valve, or the invention of the second aspect is provided. In this case, the conditioned air is sent to either the air outlet for the bed or the seat by the switching operation of the switching valve.

Therefore, air conditioning of the seat can be performed only when necessary, and there is an effect that it is possible to secure a variety of living conditions in the vehicle compartment with a simple structure. According to the fourth aspect of the invention, in addition to the effects of the first and second aspects, by selecting either the first air conditioning duct or the second air conditioning duct by the switching valve, When the heat-insulating container and the air outlet for the bed are installed at the same time, either the heat-insulating container or the air outlet for the bed can be used only when necessary, and it is possible to ensure a variety of accommodation conditions in the passenger compartment. The effect that can be performed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a truck seat air conditioner according to a first embodiment.

FIG. 2 is a side view showing the truck seat air conditioner.

FIG. 3 is an air conditioning system diagram of FIG.

FIG. 4 is a perspective view showing a truck seat air conditioner according to a second embodiment.

FIG. 5 is a side view showing the truck seat air conditioner.

6 is an air conditioning system diagram of FIG.

FIG. 7 is a side view showing a truck seat air conditioner according to a third embodiment.

8 is an air conditioning system diagram of FIG.

FIG. 9 is a cross-sectional view illustrating a conventional bus seat air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Truck 2 Vehicle 4 Air-conditioning device 10 Seat 11 Air passage 12 Air intake 14 Heat insulation container 18 Branch pipe 19 Branch part 20 Switching valve 21 Air conditioning duct 31 Air conditioning duct 33 Bed outlet 35 Branch pipe 36 Branch part 37 Switching Valve 41 cooling / heating device 42 first air conditioning duct 43 second air conditioning duct 44 third switching valve

Claims (4)

[Claims] 1. An air intake for taking in conditioned air, an air passage provided in communication with the air intake, and an air outlet communicating with the air passage and blowing out conditioned air,
A seat disposed in the passenger compartment, a cooling and heating device disposed in a front portion of the passenger compartment, one end connected to the cooling and heating device, and the other end connected to a heat retaining container disposed on a side of the seat. A seat air conditioner for trucks, comprising: an air conditioning duct; and a branch pipe that branches off from the middle of the air conditioning duct and is connected to an air intake of the seat. 2. An air intake for taking in conditioned air, an air passage provided in communication with the air intake, and an air outlet communicating with the air passage and blowing out conditioned air,
A seat disposed in the passenger compartment, a cooling / heating device disposed in a front portion of the passenger compartment, disposed through a side of the seat, one end connected to the cooling / heating device, and disposed in the passenger compartment. An air-conditioning duct provided with an air outlet for the bed at the other end, and a branch pipe that branches off from the middle of the air-conditioning duct and is connected to an air intake of the sheet. Truck seat air conditioner. 3. A switching valve is provided at a branch of the air conditioning duct with the branch pipe so as to switch conditioned air so as to flow to one of a portion downstream of the branch of the air conditioning duct and the branch pipe. The truck seat air conditioner according to claim 1 or 2, wherein: 4. An air intake for taking in conditioned air, an air passage provided in communication with the air intake, and an air outlet communicating with the air passage and blowing out conditioned air,
A seat disposed in the passenger compartment, a cooling and heating device disposed in a front portion of the passenger compartment, one end connected to the cooling and heating device, and the other end connected to a heat retaining container disposed on a side of the seat. A first air-conditioning duct, disposed at a side of the seat, one end connected to the cooling and heating device, and an air outlet for a bed disposed in the vehicle interior provided at the other end. 2, a first branch pipe branching from the middle of the first air conditioning duct and connected to the air intake of the sheet, and branching from a middle of the second air conditioning duct. A second branch pipe connected to the air intake of the seat; and a second branch pipe provided from the first air conditioning duct to the second air conditioning duct, wherein the first air conditioning duct or the second air conditioning duct is provided. And a switching valve to open either side. The track seat air-conditioning system, characterized in that are.