JPH08230443A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE: To facilitate determination of which of a front seat air conditioner unit and a rear seat air conditioner unit a display in a display part of a front seat control panel is performed for. CONSTITUTION: When a rear control switch in a front seat control panel is operated so as to carry out a switch from a front control mode to a rear control mode, colors for a temperature indication 51, a graphic indication 53, and the like are changed, so that which of the front control mode and the rear control mode is displayed can be easily determined by intuition from a difference in colors. By means of similar operation, a base color around the temperature indication 51, the graphic indication 53, and the like displayed in a display device 50 is changed, and a similar function can be exhibited, so that an occupant seated in the front seat can recognize which of the front control mode and the rear control mode is displayed by intuition on the basis of a change in the display color, and as a result, operativity and safety drivability can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner.

[0002]

2. Description of the Related Art Conventionally, a vehicle such as a wagon vehicle has been equipped with an arbitrary conditioned air blown to a front seat side of a passenger compartment and a partial area inside the car, for example, a rear seat side, to maintain desired temperatures. A vehicle air conditioner configured to do so is known.

An example of a conventional vehicle air conditioner of this type is shown in FIG.

In FIG. 5, reference numeral 1 is an air conditioning unit for the front seat installed in the front part of the automobile, which comprises a blower 2, an evaporator 3, a heater 4, an air mix damper 5, blower outlet switching dampers 6, 7, 8 and the like. ing.

Reference numeral 11 denotes a rear seat air-conditioning unit installed in the rear part of the automobile, which comprises a blower 12, an evaporator 13, a heater 14, an air mixing damper 15, and an outlet switching damper 1.
It has 6 mag.

The refrigerant discharged from the compressor 22 driven from the engine 20 through the electromagnetic clutch 21 enters the condenser 23, where it radiates heat to be condensed and liquefied, and then branches via the receiver 24.

One of the branched liquid refrigerant is adiabatically expanded by the expansion valve 26 via the electromagnetic valve 25 and then enters the evaporator 3 where the air inside the passenger compartment 27 or the outside air sent by the blower 2 is cooled. , Evaporates and returns to the compressor 22.

The other of the branched liquid refrigerant is the solenoid valve 2
Adiabatic expansion is performed by the expansion valve 29 via 8 and then the evaporator 1
3 into which the passenger compartment 27 sent by the blower 12
By cooling the internal air, it vaporizes and returns to the compressor 22.

The air cooled by the evaporator 3 of the front seat air-conditioning unit 1 is branched by an air mix damper 5, part of which is passed through the heater 4 in the process of passing through the heater 4.
The temperature is raised by exchanging heat with the engine cooling water that circulates. Then, it is mixed with the rest of the air bypassing the heater 4 to become conditioned air of a predetermined temperature, and the switching dampers 6, 7
The air is blown from the air outlet selected by to the front part of the vehicle interior 27 to air-condition the front seat 30 side.

The air cooled by the evaporator 13 of the rear seat air-conditioning unit 11 passes through the air mix damper 15, the heater 14, and the switching damper 16 to become conditioned air of a predetermined temperature, and the selected air outlet is selected. To vehicle compartment 27
It is blown out to the inner rear part to air-condition the rear seat 31 side.

The vehicle body is provided with an outside air temperature sensor 32, a solar radiation sensor 33, a room temperature sensor 34, etc., and the respective detected values are input to the control device 10. Further, the front seat air conditioning unit 1 and the rear seat air conditioning unit 11 can be independently operated and controlled, and a front seat control panel 40 is provided in front of the driver's seat and a rear seat control panel 70 is provided at the side of the rear seat. Is installed.

The front seat control panel 40 and the rear seat control panel 70 are provided with air conditioner switches 41 and 71, air outlet changeover switches 42 and 72, inside / outside air changeover switch 43, air volume adjustment switches 44 and 74, and AUT, respectively.
The O switches 45 and 75, the room temperature setting devices 46 and 76, the rear control switch 47, and the like are provided, and the respective outputs are input to the control device 10.

Then, the control device 10 calculates the front seat temperature control command value and the rear seat temperature control command value from the input temperature control calculation elements. Then, based on the front seat temperature control command value and the rear seat temperature control command value, the electromagnetic clutch 21, the blower motors 9, 17, the air mix dampers 5, 15, the blowout port switching dampers 6, via a driver (not shown). 7,
8, 16 motor actuators 36, 37, 38, 3
By outputting a signal to 9 etc. and controlling these,
The temperature inside the passenger compartment is set to the temperature set in the room temperature setter 46 for the front seat on the front seat 30 side, and the room temperature setter 76 for the rear seat is set on the rear seat 31 side.
The temperature is controlled to the set temperature set in.

An external view of the front seat control panel 40 is shown in FIGS. 6 (A), 6 (B) and 6 (C). FIG. 6 (A) is a front external view of the control panel 40 for the front seat, which shows an air conditioner switch 41, an outlet switch 42,
Inside / outside air changeover switch 43, air volume adjustment switch 44, AU
TO switch 45, room temperature setting device 46 for front seats, rear control switch 47, rear switch 48, and display unit 5
0 and the like are provided.

Then, the operation control state of the front seat air conditioning unit 1 is usually displayed on the display section 50. That is, FIG.
As shown in (B), the room temperature setting device 4 for the front seat is displayed on the temperature display 51.
The set temperature 52 set in 6 is displayed on the pictorial display 53 in the air volume setting state 54 of the front seat air conditioning unit 1 and the inside / outside air switching state 5
5, the outlet switching state 56 and the like are displayed.

In many cases, an old man or a child is usually sitting on the rear seat 31, and it may be difficult to properly operate the rear seat control panel 70. In preparation for this, the front seat control panel 40 is prepared. The operation control of the rear seat air-conditioning unit 11 is possible.

For this reason, the front seat control panel 40
Rear switch 48 and rear control switch 4
7, the operation of the rear seat air conditioning unit 11 can be stopped by the rear switch 48, and by pressing the rear control switch 47, various operation switches 41, 42, 44, 45 on the front seat control panel 40 are provided.
The room temperature setting device 46 can be switched to the rear seat air conditioning unit 11 (hereinafter, this is referred to as the rear control mode), and the display on the display unit 50 can be switched to the operation control state of the rear seat air conditioning unit 11.

That is, as shown in FIG. 6C, the temperature display 51 shows the rear seat set temperature 57, and the picture display 53 shows the air volume setting state 58 of the rear seat air conditioning unit 11 and the outlet switching state 59. Etc. are displayed, and a display for indicating that these displays are those of the rear seat air conditioning unit 11, for example, a character "REAR" 60 is displayed.

The front control mode is a state in which various operation switches and a room temperature setting device of the front seat control panel 40 are for controlling the operation of the front seat air conditioning unit 1. The rear control mode is ,
The state in which the rear control switch 47 is pressed and the operation switches and the room temperature setting device are for operation control of the rear seat air conditioning unit 11 is meant.

[0020]

In the conventional vehicle air conditioner, when the operation control of the front seat 30 to the rear seat air conditioning unit 11 is performed, the front seat control panel 4 is operated.
In the temperature display 51 of the display unit 50 of 0, the set temperature for the rear seat is 5
7. In the picture display 53, the air volume setting state 58 of the rear seat air conditioning unit 11, the outlet switching state 59, etc. are displayed, and
These are displayed to show that they are for the rear seat air-conditioning unit 11, and for example, the characters "REAR" 60 are displayed.

However, due to the overall space of the display unit 50 and the balance of each display, the size of the "REAR" 60 has to be small, and whether or not the front seat occupant is clearly in the rear control mode, There was a problem that it was difficult to understand. The present invention is intended to solve the above problems.

[0022]

[Means for Solving the Problems]

(1) The vehicle air conditioner of the present invention includes a front seat air conditioning unit (hereinafter, front A /
C) and an air conditioning unit for rear seats (hereinafter referred to as rear A / C), and the front control panel mounted on the front seat side in the vehicle is switched from the front control mode to the rear control mode. The front seat occupant can control the operation of the rear A / C by operating various operation keys of the seat control panel, and when the rear control mode is switched to, the temperature display, the pictorial display and the like displayed on the display device are displayed on the front side. A vehicle air conditioner in which the display of the operation control state of the A / C is switched to the display of the operation control state of the rear A / C. In the front control mode and the rear control mode, the above temperature display, pictorial display, etc. It is characterized by changing the display color of.

(2) The vehicle air conditioner of the present invention is a front seat air conditioning unit (hereinafter,
Front A / C and rear seat air conditioning unit (hereinafter,
Rear A / C) and the front seat control panel mounted on the front seat side in the vehicle is switched from the front control mode to the rear control mode to operate various operation keys on the front seat control panel. Front passengers can control the rear A / C,
When the mode is switched to the rear control mode, temperature display, picture display, etc. displayed on the display device are displayed on the front A / C.
In a vehicle air conditioner in which the display of the driving control state of the rear A / C is switched to the display of the driving control state of the rear A / C, a base around the temperature display and the pictorial display is displayed in the front control mode and the rear control mode. It is characterized by changing the color.

[0024]

In the above invention (1), when the rear control switch of the front seat control panel is operated to switch from the front control mode to the rear control mode, the display color of the temperature display, the picture display and the like displayed on the display device. Is changed, it is possible to easily intuitively discriminate between the front control mode and the rear control mode based on the color difference.

In the above invention (2), the surrounding base color such as the temperature display and the picture display displayed on the display device is changed by the same operation of the front seat control panel as in the above invention (1). The same effects as those of the above invention (1) can be exerted.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle air conditioner according to a first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 shows a display section 50 of the front seat control panel 40. The front seat control panel 40 is shown in FIG.
The color of the temperature display 51 and the picture display 53 displayed on the display unit 50 is changed when the is in the rear control mode. For example, it is displayed in green in the front control mode and in orange in the rear control mode. It

A fluorescent display tube 80 is used for the display of FIGS. 1A and 1B, and the electrical configuration of the fluorescent display tube 80 for switching the display color from green to orange as described above. 2 (A) and 2 (B).

The fluorescent display tube 80 shown in FIG. 2A has a structure equivalent to a triode vacuum tube, and has a filament 81 for thermionic emission, a grid 82 for controlling the electrons of the filament 81, and a temperature. Display 51, picture display 53
Is composed mainly of a large number of green light emitting element segments 83 and the same number of orange light emitting element segments 84 arranged so as to form a fluorescent substance of a material corresponding to the emission color. ing.

The operating principle of the fluorescent display tube 80 will be described. First, thermoelectrons are obtained by passing an electric current through the filament 81. At this time, the cathode (filament 81) is attached to the grid 82 and the required light emitting element segments 83 and 84.
When a higher positive potential is applied, thermoelectrons are generated in the grid 8
2. The light emitting element segment 8 is pulled out by 2 and accelerated.
The fluorescent substance emits green or orange light only when the positive potential of 3,84 is applied.

Therefore, by controlling the light emitting element segments 83, 84 which give a positive potential from the controller 10, the required temperature display 51 and pictorial display 53 can be obtained.

FIG. 2B shows an arrangement example of the segments for displaying the numbers constituting the temperature display 51. This is 7
Green light emitting element segments 83a, 83b, 83c,
83d, 83e, 83f, 83g and seven orange light emitting element segments 84a, 84b, 84c, 84d, 84e,
84 f, 84 g, each controller 1
Connected to 0.

The controller 10 receives the control mode switching signal from the rear control switch 47 of the front seat control panel 40 and the set temperatures from the room temperature setting devices 46 and 76, and selects from the green light emitting element segment 83 in the front control mode. A required segment required for display is selected, and in the rear control mode, a required segment required for display is selected from the orange light emitting element segments 84.

The selected light emitting element segment 83,
A positive potential is applied to 84, the required number is displayed in green in the front control mode, and the required number is displayed in orange in the rear control mode.

For example, when the number "3" is displayed in the front control mode, a positive potential is applied to the green light emitting element segments 83a, 83b, 83c, 83d, 83g, and the number "3" is displayed in green. Also, when displaying the number "9" in the rear control mode,
Orange light emitting element segments 84a, 84b, 84c, 84
A positive potential is applied to f and 84g, and the number "9" is displayed in orange.

Next, a vehicle air conditioner according to a second embodiment of the present invention will be described with reference to FIGS. 3 and 4. FIG. 3 shows the display section 50 of the front seat control panel 40. When the front seat control panel 40 is set to the rear control mode, the base colors of the temperature display 51 and the picture display 53 are changed. In the control mode, the base color is white, and in the rear control mode, the base color changes to yellow.

A liquid crystal display plate is used for the display of FIGS. 3A and 3B, and the electrical configuration of the liquid crystal display device 90 for switching the base color from white to yellow as described above is shown in FIG. Explained by.

The liquid crystal display device 90 includes a liquid crystal display plate 91.
And a front polarizing plate 92 on its front side, and a back polarizing plate 93 on its back side.
A light guide plate 94, a white backlight 95, and a yellow backlight 96 are provided, and these are configured as main elements.

The liquid crystal display plate 91 is connected to the controller 10, and in response to a command signal from the controller 10, the required temperature display 51 and pictorial display 53 are displayed on the liquid crystal display plate 91.
Is displayed (black).

Then, the changeover switch 97 is switched and controlled by a command signal from the rear control switch 47, and an electric current is passed through the white backlight 95 or the yellow backlight 96 to change the emission color of the backlight of the liquid crystal display panel 91. To do. Thus, in the rear control mode, the base color around the temperature display 51 and the picture display 53 changes from white to yellow.

[0041]

According to the vehicle air conditioner of the present invention, when the rear control switch of the front seat control panel is operated to switch from the front control mode to the rear control mode, the temperature display and the image displayed on the display device are displayed. By changing the display color of the display etc., it is possible to intuitively easily distinguish between the front control mode and the rear control mode due to the difference in color, and display by the same operation as above. By changing the surrounding base color such as temperature display and picture display displayed on the device, the same effect as above can be achieved, so that the front seat occupant can display the front control mode or the rear control mode. Can be intuitively discriminated from the change of, and operability and safe driving are improved.

[Brief description of drawings]

FIG. 1 is an external view of a display unit according to a first embodiment of the present invention, (A) shows a display in a front control mode,
(B) is an explanatory view of a display in the rear control mode.

FIG. 2 is an explanatory diagram of an electrical configuration according to the first embodiment,
(A) is an explanatory view of a structure of a fluorescent display tube, and (B) is an arrangement of light emitting element segments.

FIG. 3 is an external view of a display unit according to a second embodiment of the present invention, (A) shows a display in a front control mode,
(B) is an explanatory view of a display in the rear control mode.

FIG. 4 is an explanatory diagram of an electrical configuration according to the second embodiment.

FIG. 5 is a system diagram showing a configuration of a conventional vehicle air conditioner.

FIG. 6 is an explanatory view of a front seat control panel of the conventional vehicle air conditioner, (A) is a front external view,
(B) is an explanatory view of the display in the front control mode of the display unit, and (C) is an explanatory view of the display in the rear control mode.

[Explanation of symbols]

 1 Front Air Conditioning Unit 10 Controller 11 Rear Seat Air Conditioning Unit 40 Front Seat Control Panel 47 Rear A / C Control Switch 50 Display 51 Temperature Display 53 Pictorial Display 70 Rear Seat Control Panel 80 Fluorescent Display Tube 81 Filament 82 Grid 83 green light emitting element segment 84 orange light emitting element segment 90 liquid crystal display device 91 liquid crystal display plate 92 front polarizing plate 93 back polarizing plate 94 light guide plate 95 white backlight 96 yellow backlight 97 changeover switch

Claims (2)

[Claims] 1. A front seat air-conditioning unit (hereinafter referred to as "front A / C") and a rear seat air-conditioning unit (hereinafter referred to as "rear A / C"), each of which can be independently controlled in operation, are provided on the front seat side in the vehicle. By switching the attached front seat control panel from the front control mode to the rear control mode, the front passengers can operate and control the rear A / C by operating various operation keys of the front seat control panel. Air for a vehicle in which the temperature display, the pictorial display, etc. displayed on the display device when the rear control mode is switched from the display of the operation control state of the front A / C to the display of the operation control state of the rear A / C. In the harmony device, the display color of the temperature display, the picture display, etc. was changed between the front control mode and the rear control mode. The vehicle air conditioner. 2. A front seat air-conditioning unit (hereinafter referred to as "front A / C") and a rear seat air-conditioning unit (hereinafter referred to as "rear A / C"), each of which can be independently controlled in operation, are provided on the front seat side in the vehicle. By switching the attached front seat control panel from the front control mode to the rear control mode, the front passengers can operate and control the rear A / C by operating various operation keys of the front seat control panel. Air for a vehicle in which the temperature display, the pictorial display, etc. displayed on the display device when the rear control mode is switched from the display of the operation control state of the front A / C to the display of the operation control state of the rear A / C. In the harmony device, the base color around the temperature display and the picture display was changed between the front control mode and the rear control mode. A vehicle air conditioner.