JP2605425Y2 - Air conditioning structure of nap equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning structure for a nap device, and more particularly to an air conditioning structure for a nap device having a bed duct having an air outlet directed to the nap device behind a driver's seat.

[0002]

2. Description of the Related Art Generally, various types of environmental sensors are provided as an air conditioner for a vehicle, and a total operation value is calculated using detection values from these sensors so that an occupant can feel comfortable. A device for controlling air conditioning is known.

As an example, as shown in FIG. 4, this type of vehicle air conditioner 10 is composed of various air conditioners provided in a duct 11 and a control unit 12 for controlling the drive of these devices. I have. At the most upstream side (left side in the figure) of the duct 11, an inside air inlet 13 and an outside air inlet 14 are provided, and an intake door 15 for switching between the air inlets 13, 14 is provided. Also, this duct 1
An air blower 16, an evaporator 17, a mix door 18, and a heater core 19 are arranged in this order from the upstream side to the downstream side in 1. Further, a vent outlet 21, a defroster outlet 22, and a foot outlet 23 communicating with the vehicle compartment 20 are provided at the most downstream side (right side in the figure) of the duct 11. These air outlets 21, 22, 23 are provided with switching doors 24a, 24b, 24c for mode switching, and these are opened and closed.

[0004] The blower 16 has an electric motor 16a.
The rotational speed of the motor 16a is increased or decreased by changing the supply voltage to the motor 16a, thereby changing the rotation speed of the motor and adjusting the amount of air blown into the duct 11.

The evaporator 17 includes a compressor 2
5, condenser 26, receiver tank 27, expansion valve 28
Are sequentially connected by piping, and constitute a cooling system for circulating and flowing a refrigerant therein. This compressor 25 is driven by a traveling engine 30,
The refrigerant is compressed and sent. Then, when the refrigerant is compressed and expanded, heat exchange is performed between the air passing through the evaporator 17 and the low-temperature refrigerant, thereby cooling the air introduced into the duct 11.

[0006] The heater core 19 is provided with the driving engine 3.
The radiator 31 is connected to the radiator 31 by a pipe, and a heating system for circulating the engine cooling water therein is configured. That is, cooling water for radiating the engine is supplied to the heater core 19, and the high-temperature cooling water heats the air passing through the heater core 19. The heater core 19 is provided with a mix door 18 that opens and closes the heater core ventilation surface, and the mix door 18 is provided so that the opening and closing angle can be adjusted. Normally, the ratio of the air heated by passing through the heater core 19 and the air to be bypassed is set by the opening degree of the mixing door 18, and the mixing ratio adjusts the ratio of the hot air to the total air flow. , The air temperature is adjusted. Reference numeral 32 denotes a control valve for adjusting the flow rate of cooling water supplied to the heater core 19.

[0007] The opening and closing of the vent outlet 21, the defroster outlet 22, and the foot outlet 23 are selected by the respective switching doors 24a, 24b, 24c for switching the blowing mode communicating with the interior of the vehicle compartment 20. The conditioned air is discharged into the passenger compartment 20 from the outlet.

The control unit 12 has an outside air temperature sensor 41 for detecting the outside air temperature, an inside air temperature sensor 42 for detecting the inside air temperature (the temperature inside the vehicle compartment 20),
An insolation sensor 43 for detecting the amount of insolation, which is appropriately provided depending on the type of vehicle, is connected, and an operation panel 33 for displaying an operation state of the air conditioner 10 and inputting an instruction of a passenger is connected.

The control unit 12 has an I / O
A microcomputer having a port, a CPU, a memory, and the like; an A / D converter for converting each input signal into a digital signal;
And a drive circuit for controlling the drive of the various air conditioners described above. When automatically operating the air conditioner, a total operation value is calculated based on input data from the sensors 41, 42, and 43. The control of the intake door 15, the blower blower 16, the compressor 25, the mix door 18, and the mode doors 24a, 24b, and 24c, which are various types of air conditioners, is performed by the control signals based on the total operation value. In FIG. 4, reference numerals 51, 52, and 53 denote actuators for opening and closing the respective doors.
Reference numeral 4 denotes a variable resistor for increasing or decreasing the supply voltage of the blower motor 16a, the operation of which is controlled by the control unit 12.

[0010]

By the way, in the case of a device such as a truck or a camper provided with a napping device behind a driver's seat, recently, for example, Japanese Patent Laid-Open No.
As in the vehicle air conditioner described in No. 26316,
There has been proposed a device in which a nap switch is provided and air conditioning separately called a so-called nap mode is separately installed. That is, the invention is configured such that a nap switch is provided, and when the switch is turned on, an air outlet for sending out the temperature-controlled air to the nap facility is selected and opened. The purpose is to achieve efficient air conditioning by sufficiently reaching the wind.

[0011] The present invention is to improve the napping equipment only by improving a part of the normal air-conditioning apparatus without the nap mode, that is, by changing only the heater unit without changing the basic configuration itself of the air-conditioning apparatus. The present invention proposes an air-conditioning structure applicable to a vehicle having the same.

[0012] In order to achieve the above object, the present inventors have studied the introduction of hot and cold air into the napping facility through a dedicated duct from the heater unit, and found that it is difficult to adjust the hot and cold air. Sewn. Various examinations were made on the outlet of the dedicated duct. However, even in the case of the vent mode or other full heat conditions, even in a good condition, cold air was generated in the other mode, especially in the bi-level mode, so that appropriate temperature control could not be performed. This is for the following reason. In other words, in the case of full heat, the inside of the heater unit is filled with warm air, so it does not matter where the outlet for the dedicated duct is provided, but in the intermediate area other than full heat, on the other hand, cold air that does not pass through the heater core exists On the other hand, the area where warm air exists is where the defroster outlet and the foot outlet are located, and in the case of a normal heater unit, the outlet of the dedicated duct is located in the cool air area. .

The present invention has solved the above-mentioned problem by configuring as follows.

[0014]

That is, the present invention relates to an air conditioning structure of a napping facility that guides temperature-controlled air from a heater unit of a vehicle air conditioner to a napping facility provided behind a driver's seat. Downstream of the duct
And a second ventilation port is formed in a foot duct downstream of the foot door of the heater unit, a bed duct is provided to the napping facility with an air outlet, and an introduction side of the bed duct is provided. The first and second ventilation holes communicate with the first and second ventilation holes, and the ventilation from the first and second ventilation holes is supplied to the bed duct by one switching door.
This is an air conditioning structure of a nap facility provided with a switching structure for alternately switching . In the following embodiments, the first ventilation port is embodied as the ventilation port 55 of the duct 5, and the second ventilation port is embodied as the ventilation port 53c of the foot duct 53b.

[0015]

With this configuration, the temperature of the bed duct is controlled by switching the switching door in the following modes according to the following modes.

First, in the vent mode (vent door "open", defroster door "closed", foot door "closed")
The switching door is switched to a position where the ventilation from the duct of the heater unit is introduced, that is, a position where the ventilation from the foot duct is shut off. In this mode, warm air from the bed duct has the same temperature control as vent blowing.

In bi-level mode (vent door open)
Defroster door "closed", foot door "open"), the switching door is a position to introduce ventilation from the foot duct,
Therefore, the position is switched to a position where the ventilation from the duct of the heater unit is cut off. In this mode, the cool air in the duct of the heater unit is blocked from being sent to the bed duct, and the bed duct has the same temperature control as the foot blowing.

In the foot mode (vent door "closed", defroster door "closed", foot door "open"), and in the differential foot mode (vent door "closed", defroster door "open",
The foot door “open” is the same as in the bilevel mode, and the hot air from the bed duct has the same temperature control as the foot blowout.

Then, in the defroster mode (vent door "closed", defroster door "open", foot door "closed")
Is the same as in the bi-level mode, and the switching door is switched to a position for introducing the ventilation from the foot duct, and thus to a position for blocking the ventilation from the duct of the heater unit. Is "closed"
Therefore, warm air is not sent out from the bed duct. The defroster mode is used only when the air conditioning is started or when the air conditioning is operating, but only temporarily, so the defroster mode can be switched to another mode as much as possible, and the bed is temporarily stopped. The situation where hot air is not sent out from the duct is immediately eliminated.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings.

FIG. 1 is a sectional view of the embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a heater unit, and an inlet 2 of the heater unit 1 is provided with an intake door 3 and a fan 4. Reference numeral 5 denotes a duct, and 6 denotes an evaporator. Reference numeral 7 denotes a mix door for adjusting the amount of air supplied to the heater core 8 in the heater unit 1. The air conditioner itself is
The vehicle air conditioner 10 as shown in FIG. 4 is appropriately selected and used.

Downstream of the duct 5, a vent outlet 51, a defroster outlet 52 and a foot outlet 53 are provided, and each door 51 for opening and closing these outlets is provided.
a, 52a and 53a are ducts 51b, 52b and 53b, respectively.
Is provided in front of.

A napping device 9 is provided behind the driver's seat. The napping device 9 is provided with a bed duct 54 for adjusting the temperature of the napping device 9 with the air outlet facing the nap device.
The bed duct 54 is connected to the duct 5
Vent 55 formed on the downstream side of the
And a switching door 56 is provided on the introduction side of the bed duct 54 to selectively switch the ventilation from the duct 5 and the foot duct 53b.

In this embodiment, the switching door 56 is integrally formed as a bulging portion 57 of the duct 5 at a position near the foot duct 53b.

FIG. 2 shows another embodiment of the present invention.
In the duct 5 of this example, the bulging portion 57 of the previous example is a separate duct 58 with a switching door 56. Therefore, in addition to forming the duct 58, if the ventilation port 55 is formed at a predetermined portion of the conventionally used duct 5 of the conventional structure, the present invention can be easily implemented, so that the nap can be performed extremely simply and inexpensively. Air conditioning for equipment can be realized.

FIG. 3 shows still another embodiment of the present invention. The duct 5 of this embodiment is the same as that shown in FIG. 1 in that a bulging portion 57 is integrally formed. In the case of,
In consideration of the fact that the temperature of the warm air from the ventilation port 55 is the same as that of the vent blowout in the vent mode, a guide wall 59 reaching the vicinity of the vent door 51a is formed so as to obtain a temperature control as close as possible to the vent blowout. I have.

In each of the above embodiments, air conditioning for the napping facility 9 is performed in the following modes.

First, in the vent mode (the vent door 51a)
"Open", defroster door 52a "closed", foot door 53
a "Closed"), the switching door 56 is switched to a position where the ventilation from the duct 5 is introduced, that is, a position where the ventilation port 55 communicates and blocks the ventilation from the foot duct 53b. In this mode, the warm air from the bed duct 54 to the napping facility 9 has the same temperature control as the vent blowing.

In the bi-level mode (the vent door 51a)
"Open", defroster door 52a "closed", foot door 53
a "open"), the switching door 56 is switched to a position where the ventilation from the foot duct 53b is introduced, that is, a position where the ventilation from the ventilation port 55 of the duct 5 is blocked. In this mode, the cool air in the duct 5 is blocked from being sent to the bed duct 54, and the bed duct 54 has the same temperature control as the foot blowing.

In the foot mode (the vent door 51a)
"Closed", defroster door 52a "Closed", foot door 53
a “open”) is the same as in the bi-level mode, and the warm air from the bed duct 54 has the same temperature control as the foot blowout.

In the differential foot mode (the vent door 51a)
"Closed", Defroster door 52a "Open", Foot door 53
a "open") is the same as in the bilevel mode, and the warm air from the bed duct 54 has the same temperature control as the foot blowout.

In the defroster mode (the vent door 51a)
"Closed", Defroster door 52a "Open", Foot door 53
a "closed") is the same as in the bi-level mode, and the switching door 56 is switched to a position where the ventilation from the foot duct 53b is introduced, that is, a position where the ventilation from the ventilation port 55 of the duct 5 is shut off. However, in this case, since the foot door 53a is "closed", warm air is not sent out from the bed duct 54. As described above, the defroster mode is used only when the air conditioning is started or when the air conditioning is in operation even temporarily, so that the defroster mode can be switched to another mode as much as possible. The situation in which warm air is not temporarily sent out from the bed duct is immediately eliminated, and any of the above-mentioned temperature adjustments is performed on the napping facility 9 by the bed duct 54.

According to the configuration of the present embodiment, the air conditioning to the napping facility 9 is synchronized with the temperature control of the driver's seat, so that even when the air conditioner is used, the same ventilation is performed and the comfort is obtained. Things.

[0034]

[Effects of the Invention] Since the present invention is configured as described above, the air conditioning for the nap facility can be synchronized with the temperature control of the driver's seat, and an ordinary air conditioner without the nap mode is provided. An air conditioning structure applicable to a vehicle having a nap facility can be easily and inexpensively obtained only by improving the parts, that is, by changing only the heater unit without changing the basic configuration of the air conditioner itself.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an air conditioning structure of a nap facility according to the present invention.

FIG. 2 is a sectional view of a duct showing another embodiment of the present invention.

FIG. 3 is a sectional view of a duct showing still another embodiment of the present invention.

FIG. 4 is a schematic configuration diagram of a vehicle air conditioner.

[Explanation of symbols]

 Reference Signs List 1 heater unit 5 duct 9 napping device 53 foot outlet 53a foot door 53b foot duct 53c ventilation port 54 bed duct 55 ventilation port 56 switching door

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hirofumi Takao 39, Higashihara, Chiyo-ji, Odai-gun, Osato-gun, Saitama Prefecture Inside of Xexel Konan Plant (72) Inventor Kenji Iijima Higashihara, Oji-gun, Osato-gun, Saitama No. 39 Inside the Zexel Gangnam Plant (56) References Jirakukai Hei 1-114307 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B60H 1/00 B60H 1/34

Claims (1)

(57) [Scope of request for utility model registration] 1. An air conditioning structure of a napping facility for guiding temperature-controlled air from a heater unit of a vehicle air conditioner to a napping facility provided behind a driver's seat, wherein a first ventilation is provided downstream of a duct of the heater unit. Forming a mouth, forming a second ventilation port in a foot duct downstream of the foot door of the heater unit, providing a bed duct with an air outlet directed to the napping facility, The bed duct communicates with the first and second ventilation ports, and the first
And a switching structure for selectively switching the ventilation from the second ventilation opening with one switching door .