JPH0130247Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an air conditioning control device for a vehicle, and particularly to an improvement of a display mechanism for switching state.

[Prior Art] Vehicle air conditioners not only provide a comfortable indoor environment for passengers, but also provide a safe environment because hot, cold, and polluted indoor air can reduce the driver's attentiveness and reaction ability. It has an extremely important meaning from above.

Normally, in this type of vehicle air conditioner, a control device with a changeover switch for changing various modes, airflow volume, or temperature is placed on the side of the driver's seat, and the operator operates the appropriate switch. By doing so, it becomes possible to obtain a desired vehicle interior environment.

FIG. 6 shows the appearance of such a control device for a vehicle air conditioner.

In the figure, the interior side of the housing 10 is composed of a design panel 12, and on the design panel 12 there is a switch button 14 for changing the wind direction, a switch button 16 for changing the air conditioner mode to drive and control the air conditioner, and a switch button for changing the economy mode. 18, a switch button 20 for switching the intake port, a slide knob 22 for setting the temperature, and a slide knob 24 for switching the air volume are arranged.

In addition, indicators 26, 28, 30, 32, 34 are provided below each switch button to allow the operator to easily recognize the switching state of the switch button.
36 and 38 are arranged.

Here, the air conditioner switch such as the air conditioner mode switch only needs to be controlled ON/OFF, and there is no need to set it to an intermediate mode.
As mentioned above, it is preferable to use a switch button, but for example, since the air volume setting switch continuously switches and controls the air volume, it is preferable to use a slide switch as described above.

FIG. 7 shows a longitudinal cross-sectional view of such a control device, and the same parts as in FIG. 6 are given the same reference numerals and their explanation will be omitted.

In the same figure, the switch button 16 is a push button switch 40 that controls ON/OFF of the air conditioner.
The desired switching is performed by moving the switch button 16 in and out.

Indicator 3 close to switch button 16
4 is provided, the indicator 34 and the lamp 41
A shutter 44 interlocked with the switch button 16 is disposed between the inner lens 42 and the inner lens 42 that guides light from the inner lens 42 .

Therefore, when the switch button 16 is not pressed, the shutter 44 that is linked to the switch button 16 is in a closed state, and the light from the lamp 41 does not reach the indicator 34.

On the other hand, when the switch button 16 is pressed in, the shutter 44 moves rearward,
Light from the lamp 41 is guided through the inner lens 42 to the indicator 34, which emits light.

As a result, the operating state of the switch button 16 can be easily confirmed by turning on or off the indicator 34.

[Problem that the invention attempts to solve]

Problems with the Prior Art However, in the conventional vehicle air conditioning control device as described above, there is a problem in that the light emitting state of the indicator and the actual air conditioning mode, such as the air conditioner mode switching state or the economy mode switching state, may not match. It was hot.

This is because in a normal vehicle air conditioner, when the air volume switch is OFF, even if you press the air conditioner mode switch button or economy mode switch button, the air conditioner will not turn off to prevent the evaporator temperature from dropping abnormally. This is because the circuit is configured so that it does not drive and does not perform air conditioning in air conditioner mode or economy mode.

In other words, there is usually only one lamp for emitting indicators, and the light is guided to each indicator via an inner lens, and the lamp turns on and off depending on whether the air conditioning mode is in air conditioner mode or economy mode. It's not something you do. Therefore, if the air volume setting switch is in the OFF state, air conditioning will not be performed in air conditioner mode or economy mode even if the air conditioner mode switch button or economy mode switch button is pressed in. However, as mentioned above, the shutter opens and the indicator lights up.

As a result, there is a problem in that the operator may mistakenly believe that the air conditioning mode is set and operating when the air conditioning mode or economy mode is not actually operating.

Of course, this situation can be solved by providing a lamp for each indicator and controlling the lighting and extinguishing of the lamp in accordance with the actual air conditioning mode, but this would reduce the number of parts. In addition, the circuit configuration becomes complicated, leading to problems such as an increase in the cost of the device.

Purpose of the invention The present invention was devised in view of the conventional problems mentioned above, and its purpose is to provide a vehicle air conditioning control system that can display indicators corresponding to the actual air conditioning mode without increasing the number of parts. Our goal is to provide the following.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the air conditioning control device for a vehicle according to the present invention is such that the air volume switching switch is a slide switch that switches a desired circuit by sliding a slide knob. In addition, the air conditioner switch has a switch button that turns the switch ON and OFF by pushing the switch, an indicator that displays the operation status of the switch button using lamp light, and a light guide path from the lamp to the indicator that connects the switch button. a shutter that performs light shielding control in conjunction with the pushing operation, and further includes a light shielding plate that operates in conjunction with the slide knob and performs light shielding control in the light guide path from the lamp to the indicator only when the slide knob is at a predetermined slide position. The indicator is characterized in that the indicator emits light when both the shutter and the light shielding plate are in an open state.

[Function] As is clear from the above configuration, according to the vehicle air conditioning control device according to the present invention, when the air volume setting slide knob is in a predetermined position, the light shielding plate performs light shielding control in the light guide path between the indicator and the lamp. It will be done.

Therefore, regardless of the operating state of the switch button of the air conditioner switch, that is, the open/closed state of the shutter in conjunction with the switch button, the indicator corresponding to the switch button does not emit light.

On the other hand, when the slide knob is at a position other than the predetermined position, the light shielding plate does not perform light shielding control in the light guide path between the indicator and the lamp, and the operation state of the switch button, that is, the open/closed state of the shutter in conjunction with the switch button. The indicator corresponding to the switch button lights up and
Lights are turned off.

Therefore, even when the air conditioner switch is chain-controlled depending on the position of the slide knob, that is, the control state of the air volume switching slide switch, the indicator lights up according to the actual air conditioning mode, and the operator is informed of the air conditioning mode. There will be no misunderstanding.

[Embodiments] Preferred embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows a longitudinal cross-sectional view of a vehicle air conditioning control system to which the present invention is applied, and the same parts as those in FIG. 7 are numbered 100 and their explanation will be omitted.

A characteristic feature of the present invention is that when the air volume setting slide knob is in a predetermined position, the indicator corresponding to the air conditioner switch button does not emit light, regardless of the operating state of the air conditioner switch button. In this embodiment, a light shielding plate 150 is provided between the inner lens 142 and the shutter 144.

The light-shielding plate 150 is connected to a slide lever 154 via a support rod 152, and as the slide knob 124 slides, the light-shielding plate 150 slides on the inner lens 142, and the gap between the inner lens 142 and the shutter 144 is moved. Performs light blocking control.

Therefore, when the slide knob 124 is in the predetermined position and the air volume changeover switch is turned off in this embodiment, the light shielding plate 150 is disposed below the shutter 144 that is linked to the air conditioner mode changeover switch button 116, and even if the Even if the switch button 116 is pressed and the shutter 144 is opened, the light from the lamp 141 is reliably blocked by the light shielding plate 150 and is not guided to the indicator 134.

In this embodiment, the light shielding plate 150 and the support rod 1
52 is shown in detail in FIG.

In the figure, the inner lens 142 is provided with a notch 142a at a position opposite to the air conditioner mode display indicator 134 and the economy mode display indicator 136, and the cutout 142a is provided with a light shielding plate 150a of the air conditioner mode display indicator 134 and an economy mode display indicator 136. A light shielding plate 150b corresponding to the mode display indicator 136 is inserted and arranged.

Each of the light shielding plates 150a and 150b is integrally formed with the support rod 152 via a light leakage prevention plate 156 that prevents light leakage from the inner lens 142 to the inside of the housing.

The support rod 152 has a semicircular tip, and fits into the groove 15 provided in the slide lever 154.
4a so that it can be fitted into it.

In this embodiment, the air volume selector switch 146 is
The air conditioner does not operate only when controlled to the OFF state, so air conditioning cannot be performed in air conditioner mode or economy mode, and other AUTO states,
Air conditioning in air conditioner mode or economy mode is possible regardless of the air volume setting in the Lo, M, or Hi states.

Therefore, as shown in FIGS. 3A and 3B, the sliding of the light shielding plate 150 is controlled by the slide switch 146.
This is done when switching between the OFF state and the AUTO state, and as is clear from Figure A, the slide switch
When the light shielding plate 150a is in the OFF state, the light shielding plate 150a
The light guiding from the inner lens 142 to the air conditioner mode display indicator 134 is blocked by a light shielding plate 150a, and the light guiding to the economy mode display indicator 136 is blocked by a light shielding plate 150b.

Here, the support rod 152 is connected to the slide lever 154.
If the slide lever 154 is slid and switched to the AUTO state via the slide knob 124 as shown in FIG. As it slides, it slides on the notch 142a, and the light shielding plate 150b slides on the notch 142a at the position where the slide lever 154 is switched to the AUTO state.
reaches the right end of , and the sliding of the light shielding plate stops at that position.

Due to such sliding of the light shielding plate 150, both of the light shielding plates 150a and 150b are connected to the indicator 13.
4,136 evacuated from below and the indicator 13
4,136 becomes capable of emitting light by opening the shutter 144 or the like.

Further, as shown in FIG.
a, and the light shielding plate 150 is maintained at the right end of the notch 142a.

Also, contrary to the above, the slide lever 154
When switching from the LO state to the AUTO state, the support rod 152 is fitted into the groove 154a of the slide lever 154 as shown in FIG. 4, and after fitting, the support rod 152 moves in conjunction with the slide lever 154, The light shielding plates 150a and 150b are arranged at the left end of the notch 142a.

Note that in this embodiment, the slide lever 154
The contact position with the support rod 152 is formed with a curved surface or an inclined surface, and the groove 15 of the support rod 152
It is easy to fit into 4a.

Further, as shown in FIG. 5, the support rod 15
2 may be formed using a bearing mechanism.

That is, the support rod 152 is formed into a pipe shape,
A bearing 152b is disposed within the pipe via a spring 152a so as to be able to protrude from the tip of the pipe. Then, the support rod 152 is connected to the slide lever 1.
54 Bearing 152 when climbing over the side wall
b is buried in the pipe, and the support rod 152 is inserted into the groove 15.
When the position 4a is reached, the bearing 152b is projected, and the support rod 152 and slide lever 154
It is also preferable to enable interlocking with.

As explained above, according to the vehicle air conditioning control device according to the present embodiment, when the air volume setting slide switch is in the OFF state, even if the air conditioner mode switching switch button or the economy mode switching switch button is in the pressed state. Even if the air conditioner becomes hot, the indicators corresponding to each mode will not emit light, and the indicator display will differ from the actual air conditioning mode, causing the operator to misunderstand the setting status of the air conditioning mode. There isn't.

[Effects of the Invention] As explained above, according to the changeover switch for a vehicle air conditioner according to the present invention, when the air volume setting slide switch is in a predetermined control state, the light shielding plate interlocked with the slide knob allows Since the indicator corresponding to the switch button of the air conditioner switch controlled in conjunction with the slide switch does not emit light regardless of the switch button operation status, it is possible to switch to the actual air conditioning mode without increasing the number of parts. It becomes possible to control the light emission of the corresponding indicator.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the internal mechanism of the vehicle air conditioning control device according to the present invention, FIG. 2 is an exploded perspective view of the main parts of the vehicle air conditioning control device according to FIG. 1, and FIG. 3 is the vehicle according to FIG. 1. 4 and 5 are explanatory diagrams of the light shielding plate support rod used in the present invention,
FIG. 6 is an external perspective view of a general vehicle air conditioning control device, and FIG. 7 is an explanatory diagram of the internal mechanism of a conventional vehicle air conditioning control device. 10,110...Housing, 12,112...
...Design panel, 16,116...Switch button for switching air conditioner mode, 18,118...Switch button for switching economy mode, 24,124
...Slide knob for air volume setting, 34,134...
indicator, 36,136...indicator,
40,140...Push button switch for air conditioner mode switching, 41,141...Lamp, 46,14
6...Slide switch for air volume setting, 150...
Light shielding plate, 152...Support rod.

Claims (1)

[Scope of Claim for Utility Model Registration] An air conditioner switch that includes an air volume switching switch and an air conditioner switch that can be controlled ON-OFF only when the switch is in a predetermined circuit state, and the air volume switching switch is controlled by sliding operation of a slide knob. It consists of a slide switch that switches the desired circuit, and the air conditioner switch turns on the switch.
- A switch button that performs an OFF operation by pressing the switch button, an indicator that displays the operation status of the switch button using lamp light, and a shutter that performs shielding control in conjunction with the switch button pressing operation in the light guide path from the lamp to the indicator. In the vehicle air conditioning control device, which sets a desired vehicle interior air conditioning state by operating each of the switches, the lamp operates in conjunction with the slide knob, and the indicator changes from the lamp only when the slide knob is at a predetermined slide position. An air conditioning control device for a vehicle, comprising a light shielding plate that performs shielding control in a light guide path, wherein an indicator emits light when both the shutter and the light shielding plate are in an open state.