JP2010132114A - Installation structure of glass temperature sensor for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an installation structure of a glass temperature sensor for a vehicle capable of exactly measuring the temperature of windshield without impairing appearance in a cabin. <P>SOLUTION: This installation structure of the glass temperature sensor 9 for the vehicle to measure the temperature of the windshield of the vehicle is provided with a room mirror 2 mounted on the windshield in the cabin via a metal pedestal. The glass temperature sensor 9 is incorporated into a stay 7 (or a pedestal cover for covering the stay 7) of the room mirror 2 engaged with the metal pedestal mounted on the windshield. The glass temperature sensor 9 is arranged closely to the metal pedestal in the stay 7 of the room mirror 2, for instance. Alternatively, the glass temperature sensor 9 is arranged closely to the windshield in the pedestal cover of the room mirror 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an installation structure of a glass temperature sensor for a vehicle for measuring the temperature of the windshield of a vehicle provided with a rearview mirror attached to a windshield of a vehicle interior via a metal pedestal.

  In order to prevent condensation on the windshield of the vehicle, the humidity in the passenger compartment and the temperature of the windshield are measured, the dew point is estimated from the measured windshield temperature, and an air conditioner (hereinafter referred to as “air conditioner”) according to the dew point. (Hereinafter abbreviated as “compressor”) has been proposed. Since it is difficult to directly measure the windshield temperature in such a system, conventionally, the windshield temperature is estimated from the measurement results of sensors such as the outside air temperature and the amount of solar radiation necessary for air conditioner control. (See Patent Documents 1 and 2).

  Specifically, Patent Document 1 proposes a method for estimating the windshield temperature in consideration of the effect of the assumed blowing temperature on the windshield with respect to the estimated windshield temperature. Document 2 proposes a method for estimating the windshield temperature from the outside air temperature.

Patent Document 3 proposes a method of directly measuring the humidity in the passenger compartment and the temperature of the windshield by means of a sensor provided at the location of the ceramic print around the windshield in order to measure the windshield temperature with high accuracy. Has been.
JP 2003-31228 A JP-A-10-047463 JP 2007-276893 A

  However, in the method of estimating the windshield temperature from the measurement results of sensors such as the outside air temperature and the amount of solar radiation proposed in Patent Documents 1 and 2, the windshield temperature is influenced by the influence of other factors such as the vehicle speed and the engine temperature. There is a problem that the error of the estimated value of becomes large.

  Further, in the method of directly measuring the windshield temperature proposed in Patent Document 3, the sensor installed in the ceramic print section is visible from the driver, so that the appearance is not good and the merchantability is reduced, and a ceramic print is provided. Since the position is the periphery of the windshield, it is considered that heat is drawn from the metal vehicle body, and it is impossible to accurately measure the temperature of the windshield.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle glass temperature sensor installation structure capable of accurately measuring the temperature of the windshield without impairing the aesthetic appearance of the passenger compartment. There is to do.

  In order to achieve the above object, the invention according to claim 1 is directed to a glass temperature for a vehicle for measuring a temperature of the windshield of a vehicle having a room mirror attached to a windshield in a vehicle compartment via a metal base. As a sensor installation structure, the glass temperature sensor is incorporated in a stay of the rearview mirror that engages with the metal base attached to the windshield or a base cover that covers the stay.

  According to a second aspect of the present invention, in the first aspect of the present invention, the glass temperature sensor is arranged in the stay of the room mirror in the vicinity of the metal base.

  According to a third aspect of the present invention, in the first aspect of the present invention, the glass temperature sensor is disposed in the pedestal cover of the rearview mirror in the vicinity of the windshield.

  According to the first aspect of the present invention, the glass temperature sensor is covered with the pedestal cover of the rearview mirror and exposed to the interior of the vehicle so as not to be in contact with the passengers or third parties outside the vehicle body. As a result, the appearance of the vehicle interior does not deteriorate and the merchantability of the vehicle does not deteriorate. Since the glass temperature sensor is incorporated into the stay of the rearview mirror that engages the metal pedestal attached to the windshield or the pedestal cover that covers it, the temperature of the windshield is accurately measured by the glass temperature sensor to determine the dew point. In accordance with the dew point, the driving of the compressor of the air conditioner can be appropriately turned on / off to prevent the windshield from condensing.

  According to the invention described in claim 2, since the heat of the windshield is transmitted to the glass temperature sensor through the metal pedestal, the temperature of the windshield can be accurately measured by the glass temperature sensor.

  According to the invention described in claim 3, since the heat of the windshield is directly transmitted to the glass temperature sensor, the temperature of the windshield can be measured more accurately by the glass temperature sensor.

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

<Embodiment 1>
1 is a side view of a rearview mirror portion of a vehicle having a glass temperature sensor installation structure according to Embodiment 1 of the present invention, FIG. 2 is an exploded side view showing a rearview mirror mounting portion structure, and FIG. FIG. 4 is a perspective view of a room mirror showing the installation structure of the glass temperature sensor according to Embodiment 1 of the present invention, and FIG. 5 shows the installation structure of the glass temperature sensor and the windshield temperature. It is a disassembled side view of the room mirror attachment part which shows a measurement principle.

  As shown in FIG. 1, a room mirror (back mirror) 2 is attached to the center of the upper inner surface of the windshield 1 in the vehicle interior S in the vehicle width direction (perpendicular to the paper surface of FIG. 1). Includes an attachment portion 3 attached to the inner surface of the windshield 1, an arm 4 extending from the attachment portion 3 to the rear of the vehicle (leftward in FIG. 1), and a mirror body 5 rotatably attached to the tip of the arm 4. It consists of

  Here, as shown in FIG. 2, the mounting portion 3 of the room mirror 2 has a rectangular plate-like metal pedestal 6 attached to the center of the inner surface of the windshield 1 in the vehicle width direction, and the metal pedestal 6. 4 is formed by a resin stay 7 and a resin base cover 8 that covers the stay 7. As shown in FIG. 4, a pair of left and right engaging portions 7a and springs are provided on the mounting surface of the stay 7. The engaging claw 7b which has property is provided.

  Thus, as shown in FIG. 3, the rearview mirror 2 is configured such that the stay 7 is engaged in the direction of the arrow with the metal pedestal 6 attached to the upper surface of the inner surface of the windshield 1. It is attached by the snap-in method at the center in the upper vehicle width direction. Specifically, the pair of left and right engaging portions 7a (see FIG. 4) formed on the stay 7 is engaged with engaging grooves (not shown) formed on both side portions of the metal base 6 in the room. The entire mirror 2 is slid in the direction of the arrow in FIG. When the end of the engaging portion of the stay 7 is engaged with the engaging groove of the metal pedestal 6, the engaging claw 7 b of the stay 7 is engaged with the end surface of the metal pedestal 6, and the stay 7 is securely attached to the metal pedestal 6. It is fixed and is prevented from falling off from the metal pedestal 6, and in this way, the rearview mirror 2 is attached to the center of the windshield 1 in the vehicle width direction through the metal pedestal 6 by the snap-in method.

  As shown in FIG. 4, a glass temperature sensor 9 for measuring the temperature of the windshield 1 is provided in the concave portion of the stay 7 of the room mirror 2 attached to the upper part of the inner surface of the windshield 1 by the mounting structure described above. 6 is built in close proximity. In the present embodiment, the glass temperature sensor 9 is incorporated in the stay 7 in contact with the metal base 6. As shown in FIG. 1, an electrical signal cable (harness) 10 extending from the glass temperature sensor 9 passes through the roof 11 and is connected to a control circuit section (not shown).

  Thus, according to the present embodiment, the glass temperature sensor 9 for measuring the temperature of the windshield 1 is incorporated in the stay 7, and the stay 7 is covered by the pedestal cover 8. The sensor 9 is not exposed to the passenger compartment S and exposed to third parties outside the vehicle body. Accordingly, the glass temperature sensor 9 deteriorates the appearance of the passenger compartment S and decreases the merchantability of the vehicle. There is nothing to do. Further, as shown in FIG. 1, the electric signal cable 10 extending from the glass temperature sensor 9 is connected to a control circuit unit (not shown) through the roof 11. Does not impair appearance or driver visibility.

  Further, since the glass temperature sensor 9 is incorporated in the stay 7 of the rear mirror 2 that engages with the metal pedestal 6 attached to the windshield 1 so as to come close to (contact with) the metal pedestal 6, it is indicated by an arrow in FIG. 5. Thus, since the heat of the windshield 1 is transmitted to the glass temperature sensor 9 through the metal pedestal 6, the temperature of the windshield 1 can be accurately measured by the glass temperature sensor 9. Since the rearview mirror 2 is disposed at the center in the vehicle width direction away from the periphery of the windshield 1, the glass temperature sensor 9 incorporated in the stay 7 of the rearview mirror 2 may be thermally affected by the vehicle body. Absent.

  The temperature of the windshield 1 measured by the glass temperature sensor 9 is sent as an electrical signal to the control circuit unit (not shown) via the electrical signal cable 10 shown in FIG. The dew point is accurately obtained based on this, and the drive of the compressor of the air conditioner (not shown) is appropriately turned on / off according to the dew point, so that the dew condensation on the windshield 1 can be reliably prevented.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIG.

  FIG. 6 is a cutaway side view of a rear mirror portion of a vehicle provided with a glass temperature sensor installation structure according to Embodiment 2 of the present invention. In this figure, the same elements as those shown in FIGS. Are denoted by the same reference numerals, and a repetitive description thereof will be omitted below.

  As shown in FIG. 6, the present embodiment is characterized in that the glass temperature sensor 9 is disposed outside the stay 7 in the base cover 8 of the rearview mirror 2 so as to be close to or in contact with the windshield 1. The configuration is the same as that of the first embodiment.

  Thus, in the present embodiment, since the heat of the windshield 1 is directly transmitted to the glass temperature sensor 9, the temperature of the windshield 1 can be measured more accurately by the glass temperature sensor 9.

  Further, since the glass temperature sensor 9 is covered with the pedestal cover 8, the glass temperature sensor 9 is not exposed to the passenger compartment S and exposed to a third party outside the vehicle body. The temperature sensor 9 does not deteriorate the appearance of the passenger compartment S and reduce the merchantability of the vehicle.

It is a side view of the rear-mirror part of the vehicle provided with the installation structure of the glass temperature sensor which concerns on Embodiment 1 of this invention. It is a disassembled side view which shows the attachment part structure of the room mirror which concerns on Embodiment 1 of this invention. It is a partial side view which shows the attachment point of the room mirror in Embodiment 1 of this invention. It is a perspective view of the room mirror which shows the installation structure of the glass temperature sensor which concerns on Embodiment 1 of this invention. It is a decomposition | disassembly side view of the room mirror attachment part which shows the installation structure of the glass temperature sensor which concerns on Embodiment 1 of this invention, and the measurement principle of a windshield temperature. It is a fracture | rupture side view of the rear-mirror part of the vehicle provided with the installation structure of the glass temperature sensor which concerns on Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front glass 2 Room mirror 3 Room mirror mounting part 4 Room mirror arm 5 Room mirror mirror body 6 Metal base 7 Stay 7a Stay engaging part 7b Stay engaging claw 8 Base cover 9 Glass temperature sensor 10 Electric signal Cable 11 Roof S Car compartment

Claims (3)

An installation structure of a vehicle glass temperature sensor for measuring the temperature of the windshield of a vehicle provided with a rearview mirror attached to a windshield of a vehicle interior via a metal pedestal,
An installation structure of a glass temperature sensor for a vehicle, wherein the glass temperature sensor is incorporated in a stay of the rearview mirror that engages with the metal base attached to the windshield or a base cover that covers the stay.   The installation structure for a glass temperature sensor for a vehicle according to claim 1, wherein the glass temperature sensor is arranged in the stay of the room mirror so as to be close to the metal pedestal.   2. The glass temperature sensor installation structure for a vehicle according to claim 1, wherein the glass temperature sensor is disposed in the pedestal cover of the room mirror so as to be close to the windshield.

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