JPH068506Y2 - Solar radiation detector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a device for detecting the amount of solar radiation falling into a vehicle interior.

(Prior Art) Although the amount of solar radiation is detected as a control input for an air conditioner,
The solar radiation sensor that detects the amount of solar radiation is usually provided at an appropriate position on the upper surface of the instrument panel.

(Problems to be solved by the invention) Therefore, if a solar radiation sensor is provided at an appropriate position on the upper surface of the instrument panel, it is possible to detect sunlight sufficiently when the solar radiation angle is high. When the angle is low, it is difficult for sunlight to reach the solar sensor,
It was difficult to detect accurately.

Therefore, the present invention is intended to enable accurate detection even when the solar radiation angle is low, and to simplify the number of mounting steps by integrating with a dew condensation or humidity detection element.

(Means for Solving Problems) The gist of the present invention is to have a case 15 made of resin, one side being an adhesive surface 18, one side being a solar radiation sensor section 16, and the other side being a dew condensation or humidity sensor section. 17, the solar radiation sensor unit 16 has a chamber 19 having an opening on the adhesive surface side, and a solar radiation detection element 21 is arranged in the chamber 19, and the condensation or humidity sensor unit 17 is externally provided on the other surface side. It has a chamber 29 communicating with it, and a dew condensation or humidity detecting element 28 is arranged in the chamber 29, and the solar radiation sensor unit 1 of the resin case 15 is provided.
6, the control circuit 22 is provided on the side opposite to the bonding surface 18 with respect to the chamber 19.

(Operation) Therefore, since the solar radiation amount detection device 14 is mounted at a relatively high position on the inner surface of the glass 1, the solar radiation detection element 21 is installed at a relatively high position, and the solar radiation is accurate even when the solar radiation is low. Since the dew condensation or humidity detecting element 17 is also integrated, it can be attached at the same time as the inner surface of the glass is attached.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 5, the windshield 1 is attached so that the lower side is in contact with the end of the instrument panel 2, the upper side is in contact with the end of the ceiling 3, and the left and right sides are in contact with the front pillars 4a, 4b.

The instrument panel 2 is provided with a handle 6 and instruments 7 on the front, a central outlet 8a is formed in the center, side outlets 8b are formed at both left and right ends, and a defrost outlet 9 is formed on the windshield 1 on the upper surface. It is formed facing each other.
The defrost outlet 9, the central outlet 8a, and the side outlets 8b are connected to an air conditioner (not shown) installed inside the instrument panel 2 via a duct, and are connected to the air conditioner from the air conditioner. The wind is sent to the passenger compartment or the windshield 1.

As shown in FIGS. 2 and 3, the ceiling 3 includes a roof panel 10 made of an iron plate and an inner lining 11, and a rearview mirror 12 is attached near the center of the windshield 1.

The solar radiation amount detection device 14 is attached to the inner surface of the windshield 1 near the room mirror 12 by an adhesive such as a double-sided tape. This solar radiation amount detection device 14
For example, as shown in FIGS. 1 to 4, a case 15 made of resin or the like is provided, one of which is a solar radiation sensor portion 16 and the other is a dew condensation or humidity sensor portion 17, and the solar radiation sensor portion 16 is bonded to a glass surface. The surface 18 side has a chamber 19 having an opening, and a solar radiation detecting element 21 such as a photodiode for detecting the amount of solar radiation through the extinction filter 20 is housed.

Further, the solar radiation sensor unit 16 is provided with a chamber 23 for accommodating a control circuit 22 described below on the side opposite to the bonding surface 18 with respect to the chamber 19, and the control circuit 22 is embedded with a filler 24. There is.

The control circuit 22 is provided in order to process the detection signal of the solar radiation detecting element 21 and to correct the detection signal of the dew condensation or humidity detecting element 28, which will be described below, by the amount of solar radiation. In order to do so, the solar radiation sensor unit 16 is provided. Reference numeral 25 is a lead wire, which is connected to an air-conditioning control device (not shown).

The dew condensation or humidity sensor unit 17 is a dew condensation detecting element (an element that detects a relative temperature of 100% or more) or a humidity detecting element (an element that detects a relative humidity of 100% or less) inside the sensor fixing plate 27. .) 28, and a chamber 29 provided on the side of the dew condensation or humidity detection element 28 communicates with the vehicle interior through a passage 30. Air on the inner surface of the windshield 1 flows in, and the humidity of the air A condensation condition is detected. This detection signal is input to the above-mentioned control circuit 22 via the lead pin 31, and the signal is immediately corrected by the signal obtained by the solar radiation detection element 21. Therefore, it is not affected by noise.

The condensation or humidity sensor unit 17 and the solar radiation sensor unit 16
A hole 32, for example, is formed between and to provide thermal insulation, but a heat insulating material may be interposed.

Reference numeral 33 is a guide piece for determining the position when the windshield 1 of the solar radiation amount detection device 14 is attached, and is used for the ceiling lining 11
The roof panel 10 made of iron plate enters the ceiling side through the
Has an engaging groove 34 for engaging with.

In the above configuration, the solar radiation amount detection device 14 is attached near the room mirror 12 with double-sided tape or the like,
It does not block the driver's view. The dew condensation or humidity detecting element 28 is attached at the same time as the solar radiation detecting element 21. The solar radiation detection element 21 is on the glass surface,
It can be detected reliably even at a relatively high position and low in the morning and evening solar radiation.

(Effect of device) As described above, according to this device, the solar radiation detection element is attached to the inner surface of the window glass and is at a relatively high position.
Even if the angle of solar radiation is low, it can be detected reliably.

Further, in this device, the solar radiation detecting element and the dew condensation or humidity detecting element are integrally provided, so that the apparatus can be mounted by mounting once.

Further, since the detection signal of the solar radiation detection element or the condensation or humidity detection element is processed by the control circuit provided in the solar radiation sensor section on the solar radiation detection element side, it is less susceptible to noise, and the condensation or humidity detection element is less likely to be affected. It is possible to suppress an increase in the heat capacity of the humidity sensor and to prevent the condensation or the deterioration of the performance of the humidity sensor.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention, and FIG. 2 is a first view.
FIG. 3 is a cross-sectional view taken along the line AA, FIG. 3 is a cross-sectional view taken along the line BB of FIG. 1, and FIG. 4 is a perspective view showing a state in which a case is removed with a dew condensation or humidity detection element, a solar radiation detection element, and a control circuit combined , Fifth
The figure is a perspective view of a state in which the solar radiation amount detection device is attached to the inner surface of the windshield. 1 …… windshield, 14 ……
Solar radiation amount detection device, 16 ... Solar radiation sensor section, 17 ... Dew condensation or humidity sensor section, 21 ... Solar radiation detection element, 28 ... Dew condensation or humidity detection element.

Claims (1)

[Scope of utility model registration request] 1. A resin case 15 is provided, one side of which serves as an adhesive surface 18, one of which serves as a solar radiation sensor section 16 and the other of which serves as a dew condensation or humidity sensor section 17. The solar radiation sensor section 16 comprises: The bonding surface side has a chamber 19 having an opening.
9, the solar radiation detecting element 21 is arranged, the dew condensation or humidity sensor section 17 has a chamber 29 communicating with the outside on the other surface side, and the dew condensation or humidity detecting element 28 is arranged in this chamber 29. A solar radiation amount detection device, wherein a control circuit 22 is provided on the solar radiation sensor section 16 of the resin case 15 on the side opposite to the bonding surface 18 with respect to the chamber 19.