JPH09188195A - Inner mirror - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inner mirror having strong resistant to heat. SOLUTION: This inner mirror 1 is provided with a housing 4 and a mirror module 5 as a light reflector arranged in the opening part 4a of the housing 4. In the inner mirror 1, ventilation ports 11, 12 for communicating the inside to the outside of the housing 4 are provided in positions hardly receiving direct sunshine, for example, the lower part S1 and the upper part S2 of the housing 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner rear view mirror (hereinafter, simply referred to as "inner mirror") provided inside a vehicle interior.

[0002]

2. Description of the Related Art In order to drive a vehicle safely, a driver must pay attention not only to the front of the traveling direction of the vehicle but also to the rear of the traveling direction of the vehicle. However, if the driver turns around a number of times while driving, it becomes impossible to drive safely. Therefore, in order to be able to confirm the rear while facing the front, it is necessary to arrange some means for reflecting light in the driver's visual field. A so-called inner mirror is known as a specific example of means for reflecting such light. An example is shown in FIGS.

The inner mirror 41 is arranged in the center of the upper front part of the interior of the automobile. The inner mirror 41 is usually composed of a mirror body 45 including a housing 42, a light reflector 43, a cover 44, and the like, and a bracket 46 for suspending the mirror body 45.

As the highly functional inner mirror 41 in recent years, for example, there is an antiglare mirror. In this type of inner mirror 41, the reflectance of the mirror surface of the light reflector 43 is automatically reduced when the light from the rear is dazzling when traveling at night. As the inner mirror 41 other than this, for example, one having a remote key function has appeared. Therefore, in those having such functions, the dedicated circuit board 48 for control is housed in the housing 42.

[0005]

However, the highly functional inner mirror 41 of this type has the following problems.

Since the inner mirror 41 is located in the immediate vicinity of the windshield, direct sunlight is particularly likely to hit the back portion 42a of the housing 42. Then, in the midsummer hot sun, the surface temperature of the housing back portion 42a is 10
It reaches over 0 ℃. Further, in this case, the temperature inside the housing 42 may be 95 ° C. or higher.
However, since the operating range of the electronic components mounted on the circuit board 48 is normally about -40 ° C to + 85 ° C, exposure to such a high temperature inevitably causes malfunction or thermal destruction. Therefore, in the past, the circuit board 48
It was thought that some measures should be taken to avoid the temperature rise of the.

As a measure against the above, the housing 4
A plurality of somewhat large slits 47 are provided on the back portion 42a of the second housing 42, and the housing 42 is inserted through the slits 47.
It has been proposed to provide internal and external ventilation (Fig. 12,
See FIG. 13). However, in this configuration, direct sunlight may enter the housing 42 through the slit 47, and thus the circuit board 48 may be exposed to the direct sunlight. Therefore, it was not possible to reliably avoid the temperature rise of the circuit board 48. Further, with such a configuration, the slit 47
Not only that, the internal structure of the mirror such as the circuit board 48 is visible through the windshield. Therefore, there was an opinion that the designability would be greatly impaired. Therefore, it has been considered that the number of the slits 47 should not be so large and the number thereof should be small in order to prevent the deterioration of the design.

The present invention has been made in view of the above problems, and a first object thereof is to provide an inner mirror that is resistant to heat. A second object of the present invention is to provide an inner mirror that is resistant to heat without significantly impairing the design.

[0009]

In order to solve the above-mentioned problems, the invention according to claim 1 is an inner mirror comprising a housing and a light reflector arranged in an opening of the housing. The gist of the inner mirror is characterized in that a ventilation hole that communicates the inside and the outside of the housing is provided at a place where direct sunlight is hard to reach in the same mirror.

According to a second aspect of the present invention, there is provided an inner mirror including a housing and a light reflector arranged in an opening of the housing, wherein at least a ventilation hole communicating between the inside and the outside of the housing is provided. The main point is an inner mirror that is provided at the bottom.

According to a third aspect of the present invention, there is provided an inner mirror including a housing and a light reflector arranged in an opening of the housing, wherein an air vent communicating the inside and the outside of the housing is provided at an upper part of the housing. And the inner mirrors, which are respectively provided on the lower part and the lower part, are the gist of the invention.

According to a fourth aspect of the present invention, in the inner mirror having the housing and the light reflector disposed in the opening of the housing according to any one of the first to third aspects, The gist of the invention is that the ventilation means for replacing the air is housed in the same housing.

According to a fifth aspect of the present invention, in the fourth aspect, the ventilation means is constituted by a blower fan and a fan motor for driving the blower fan.

In a sixth aspect of the invention, the gist of the fifth aspect is that the fan motor is configured to operate when a predetermined temperature or higher is reached.
Hereinafter, the "action" of the present invention will be described.

According to the first to sixth aspects of the present invention, the air inside and outside the housing is naturally replaced through the communication port provided in the housing, so that the inside of the housing is ventilated. For this reason, unlike the case where air is sealed in the housing, temperature rise in the housing is prevented. Therefore, malfunction and destruction of the circuit board can be reliably prevented. This is because the housing is unsealed and the air outside the housing is relatively cooler than the air inside the housing.

According to the first aspect of the present invention, the ventilation holes are provided in the mirror at locations where direct sunlight is difficult to reach. In such a place, direct sunlight is hard to be inserted into the housing, which makes it difficult for the circuit board to be exposed to direct sunlight. Therefore, the temperature rise of the circuit board is prevented.

According to the second aspect of the invention, the ventilation hole is provided at least in the lower portion of the housing. Since such a part faces downward, it is unlikely to be exposed to direct sunlight. Therefore, direct sunlight does not enter the housing, and the circuit board is not exposed to direct sunlight. Further, in the interior of a vehicle, the temperature tends to be higher as it goes upward, and conversely, the temperature becomes lower as it goes downward. Therefore, if a vent hole is provided in such a place, it is possible to allow air having a relatively low temperature to flow into the housing. As a result of the above, the temperature rise is more reliably prevented.

Further, in the case of the vent hole provided in such a place, since it is not visible through the windshield,
It does not significantly impair the design of the inner mirror.

According to the third aspect of the present invention, ventilation holes are provided in the upper portion and the lower portion of the housing, respectively. For this reason, the air that has flowed in from the ventilation hole in the lower portion can pass through the inside of the housing and flow out from the ventilation hole in the upper portion. Therefore, the air flow in the housing becomes smooth, and sufficient air ventilation is achieved. Therefore, the temperature rise is prevented more reliably.

Further, with such a structure, ventilation becomes sufficient, and as a result, the vent hole itself can be made small. This is also preferable in terms of design. In addition,
The vents on the top of the housing are also hard to see through the windshield.

According to the fourth aspect of the present invention, since the air inside the housing is positively ventilated by the ventilation means for exchanging the air inside and outside the housing, the temperature rise inside is surely prevented.

According to the invention described in claim 5, since a relatively simple structure is sufficient, it can be housed in an existing housing. Therefore, it is possible to prevent the entire mirror from becoming large. Further, despite the simple structure, a suitable cooling effect can be expected.

According to the invention of claim 6, the fan motor operates when the temperature exceeds a predetermined temperature.
Not only does the energization amount be small, but noise prevention of the fan motor is achieved when cooling is not required.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION

[Embodiment 1] Hereinafter, an embodiment in which the present invention is embodied as an inner mirror having an antiglare function will be described in detail with reference to FIGS.

The inner mirror 1 of this embodiment shown in FIG. 1 is installed in the upper center of the front of the interior of an automobile, and is roughly divided into two parts, a mirror body 2 and a bracket 3.

The bracket 3 is a member for suspending and fixing the mirror body 2 on the inner wall surface of the roof of an automobile, and is a molded product made of a resin material such as polypropylene. A spherical portion 3a is formed on the tip end side of the bracket 3, and a screwing portion is formed on the base end side.
The bracket 3 is hollow, and a cord (not shown) is housed inside the bracket 3. The current from the battery (not shown) is supplied to the mirror main body 2 via the same code.
It is supplied to the side.

As shown in FIG. 2, the mirror body 2 is
Housing 4, mirror module 5 as a light reflector,
The cover 6, the circuit board 7, and an optical sensor (not shown) (that is,
Ambient light sensor and rear light sensor). The housing 4 is a member forming a main part of the mirror body 2, and is a molded product formed of a resin material such as polypropylene. The housing 4 has a curved shape, and an accommodation space for accommodating the circuit board 7 and the like is formed inside thereof. A mirror module 5 having substantially the same shape as that of the opening 4a on the front side of the housing 4 is attached together with a cover 6. The mirror module 5 has a structure in which an EC functional thin film in which an electrode / reflector, a reduction coloring film, an ion conductive film, and the like are joined is sandwiched by glass. Therefore, when the mirror module 5 is energized, the reflectance of the mirror surface changes due to the electrochemical oxidation and reduction reaction, and the antiglare function is automatically exhibited. The circuit board 7 includes a comparison circuit that compares the output values of the two types of optical sensors, a drive circuit that switches anti-glare and anti-glare based on the detection result. Further, such a circuit board 7 is arranged immediately behind the mirror module 5 in the internal space of the housing 4 and in close proximity thereto.
The cover 6 is also a molded product formed of a resin material such as polypropylene. A push switch 8 for manually switching between anti-glare and anti-glare is provided at the center of the front surface of the cover 6. The cover 6 has locking claws, which are locked by locking claws provided in the opening 4 a of the housing 4.

Here, for convenience of description, the housing 4 is divided into a plurality of regions, which are referred to as a lower portion S1, an upper portion S2, a back portion S3 and a side portion S4. A bracket insertion hole 9 is transparently provided in the central portion of the back portion S3 and above the upper portion. The spherical portion 3a of the bracket 3 is inserted into the bracket insertion hole 9 from the outside of the mirror body 2. A bearing is formed inside the housing 3 where the bracket insertion hole 9 is provided by a pair of support plates (not shown). The spherical portion 3a is supported by this bearing, so that the mirror body 2 can be pivoted about the bearing.

Next, the structure for preventing the temperature rise in the inner mirror 1 will be described. As shown in FIGS. 1 and 2, a first ventilation port 11 and a second ventilation port 12 that communicate with the inside and outside of the housing 4 are provided in a place where direct sunlight is hard to reach in the housing 4. In this embodiment, the first vent 11 is provided on the lower S1 side, and
Vent hole 12 is provided on the upper S2 side. Both vents 1
Each of 1 and 12 has three holes. The first ventilation port 11 is mainly for allowing air to flow into the internal space of the housing 4. On the other hand, the second ventilation port 12
Is mainly for letting out air from the internal space of the housing 4.

The housing 4 as described above is formed, for example, by the following method. The first method is a method of forming simultaneously at the time of injection molding. In this method, a pair of molding dies 13 and 14 corresponding to the outer shape of the housing 4 is used.
Is used. In this case, the space holding material 15 is arranged at the places which will later become the vent holes 11 and 12, and the space holding material 15 is removed after the molding material is injected and cured. As a result, the vent holes 11 and 12 are relatively easily formed at predetermined locations. The second method is a method in which a predetermined portion is cut out by drilling or the like after injection molding.

The characteristic functions and effects of this embodiment will be listed below. (A) According to the present embodiment, the air inside the housing 4 is exchanged with the air inside and outside the housing 4 through the communication ports 11 and 12 provided in the housing 4, whereby the ventilation inside the housing 4 is achieved. Therefore, unlike the case where the housing 4 is sealed with air, the temperature rise in the housing 4 is prevented.
Therefore, malfunction or destruction of the circuit board 7 can be reliably prevented. This is because the housing 4 is not hermetically sealed, and the air outside the housing 4 is relatively cooler than the air inside the housing 4.

(B) According to this embodiment, the housing 4
First vent 1 for letting air into the lower part S1 of the
1 is provided. Since such a portion of the housing 4 faces downward, direct sunlight is unlikely. Therefore, the direct sunlight does not enter the housing 4 through the ventilation hole 11 formed here, and the direct sunlight does not reach the circuit board 7. Further, in the interior of a vehicle, the temperature tends to be higher as it goes upward, and conversely, the temperature becomes lower as it goes downward.
Therefore, if the vent 11 is provided in such a place,
Air having a relatively low temperature can be flowed into the housing 4. As a result of the above, the temperature rise is more reliably prevented.

Further, in the case of the vent hole 11 provided in such a place, since it does not appear through the windshield, it does not significantly impair the design of the inner mirror 1.

(C) Further, according to this embodiment, the air that has flowed in through the first ventilation port 11 in the lower portion S1 can pass through the inside of the housing 4 and flow out through the ventilation port 12 in the upper portion S2. . Therefore, as compared with the case where the vent holes 11 and 12 are provided in only one of them, the air flow in the housing 4 becomes smoother and sufficient air ventilation is achieved. Therefore, more reliable temperature rise prevention measures are taken.

(D) With such a configuration, ventilation is sufficient, and as a result, the vent holes 11 and 12 themselves can be made small. This means that it is preferable in terms of design. Since the ventilation hole 12 provided in the upper portion S2 of the housing 4 is also difficult to see through the windshield, it does not adversely affect the design. Furthermore, since the vent holes 11 and 12 are small, it is possible to prevent dust and the like from entering the housing 4.

(E) The inner mirror 1 of the present embodiment does not require electric power to ventilate the air in the housing 4, and is therefore extremely economical. Further, in this embodiment in which it is sufficient to form only the communication ports 11 and 12, it is possible to take a measure to prevent temperature rise without complicating the configuration. [Second Embodiment] Next, a second embodiment will be described with reference to FIGS.
The inner mirror of will be described. Here, the description will be focused on the differences from the first embodiment, and common parts will be assigned the same reference numerals and detailed description will be omitted.

In the housing 4 of the inner mirror 21 of the present embodiment, not only the ventilation holes 11 and 12 described above are provided, but also a ventilation means for forcibly exchanging the air inside and outside the housing 4 is housed. Has been done. As shown in FIG. 4, four support pins 22 project from the inner wall surface of the back portion S3 of the housing 4. These support pins 22 are fitted and inserted into through holes 23a formed at the four corners of the motor mounting plate 23, respectively. As a result, the motor mounting plate 23 is fixed in the housing 4. A certain degree of clearance is provided between the motor mounting plate 23 and the inner wall surface of the back portion S3 of the housing 4. A mounting recess 23b for mounting the fan motor 24 is formed in the center of the front surface of the motor mounting plate 23, and the fan motor 24 (so-called mini sirocco fan (product name)) is mounted in the mounting recess 23b. Has been. A blower fan 24a is integrally rotatable with the output shaft of the fan motor 24. The ventilation means including the fan motor 24 and the blower fan 24a is housed in the fan housing chamber 4b defined by the inner wall surface of the housing 4. The outlet side of the fan accommodating chamber 4b is communicated with the second ventilation port 12 provided in the upper portion S2 of the housing 4. Therefore, when the blower fan 24a rotates, the first
The air sucked in from the ventilation port 11 side is forcedly discharged from the second ventilation port 12 side.

In the case of this embodiment, the back portion S of the housing 4
The thickness of the portion corresponding to 3 is somewhat thicker than that of the first embodiment. A solar cell plate 25, which is an energy conversion means for converting light energy into electric energy, is embedded in this portion. Then, current is supplied from the solar cell plate 25 to the fan motor 24. A thermostat 26 is arranged above the fan motor 24. Therefore,
The fan motor 24 is configured to be turned on when the temperature inside the housing 4 becomes a predetermined value or higher, and turned off when the temperature is lower than the predetermined value. In this embodiment,
This set temperature is 70 ° C. The operating temperature of the fan motor 24 may be manually changed.

Further, in this embodiment, the first ventilation port 1
The first and second vents 12 are one on the lower S1 and one on the upper S2.
They are provided individually and in mutually alternating positions. This is because if this is done, it is possible to allow air to flow evenly through the internal space of the housing 4.

Now, according to the inner mirror 21 thus constructed, the following operational effects are obtained. (A) In the inner mirror 21 of the present embodiment, the communication ports 11 and 12 are provided in the lower portion S1 and the upper portion S2 of the housing 4 as in the first embodiment. Therefore, the air inside the housing 4 is naturally exchanged through the communication ports 11 and 12, so that the inside of the housing 4 is ventilated. Therefore, unlike the case where the housing 4 is sealed with air, the temperature rise in the housing 4 is prevented. Therefore, malfunction or destruction of the circuit board 7 can be reliably prevented. The natural ventilation as described above is performed in a state before the room temperature reaches a predetermined temperature.

(B) Further, the present embodiment is characterized in that the housing 4 contains the ventilation means including the blower fan 24a and the fan motor 24 for driving the blower fan 24a. Therefore, when the room temperature exceeds a predetermined temperature, the rotating blower fan 24a
By this action, the air in the housing 4 is positively ventilated, so that the temperature rise inside is surely prevented.

In addition, since such a ventilation means has a relatively simple structure, it can be housed in the housing 4 having the existing size and shape. Therefore, it is possible to prevent the size of the entire mirror 1 from increasing. Further, despite the simple structure, a suitable cooling effect can be expected.

(C) In this embodiment, since the thermostat 26 is provided, the fan motor 24 is configured to operate only when the temperature exceeds a predetermined temperature. For this reason, the energization amount can be reduced as compared with the case where the fan motor 24 is always operated. Therefore, the structure is suitable for energy saving and cost reduction. Moreover, since the fan motor 24 is stopped when cooling is not necessary, noise prevention can be achieved.

(D) In the present embodiment, since the solar electric plate 25 is provided in the housing 4, the electric power for driving the fan motor 24 can be self-sufficient.
Therefore, power supply from the outside of the inner mirror 1 is not necessary, and early consumption of the battery can be avoided. In addition, such a solar cell plate 25 is attached to the back portion S of the housing 4.
The fact that it exists in 3 is also a measure for preventing the temperature rise in the inner mirror 1. That is, the solar cell plate 2
This is because, as a result of the energy conversion performed by 5, the amount of heat energy derived from light energy also decreases.

Further, when the solar cell plate 25 having a metallic glossy surface on the outer layer is present on the outer surface of the housing 4,
The outer appearance of the inner mirror 1 gives a high-tech impression to the viewer. Therefore, the installation of the solar cell plate 25 also leads to an improvement in the design of the inner mirror 1.

(E) In this embodiment, the ventilation means and the like are housed inside the housing 4, so that they are invisible from the outside. Therefore, the appearance of the inner mirror 1 does not become complicated, and the design is preferable.

The present invention is not limited to the above embodiment, but can be modified as follows, for example. (1) The positions of the vent holes 11 and 12 are allowed to be changed as follows. For example, as in the inner mirror 31 of another example 1 shown in FIG. 6, the first ventilation hole 11 is provided in the side portion S4 of the housing 4, and the second ventilation hole 1 is formed.
2 may be provided on the upper part S2 of the housing 4. Side S of the housing 4 when compared to the back S3 of the housing 4.
This is because direct sunlight is hard to reach the 4. Of course, other than this, the following configurations are allowed. That is, i) the ventilation holes 11 and 12 are provided in the side portion S4 and the lower portion S1, ii) the ventilation holes 11 and 12 are provided in the lower portion S1, the upper portion S2 and the side portion S4, and iii) the lower portion S1 and the upper portion S2 or side. The vent holes 11 and 12 are provided only in any one of the parts S4. In addition, since the number of holes of the vent holes 11 and 12 is also arbitrary, it can be freely changed within a range that does not impair the design.

(2) "Lower part of housing" in the present specification
If you say "upper part of the housing", the housing 4
It also includes the cover 6 attached to, and means the upper part and the lower part thereof. Therefore, like the inner mirror 34 of the second example shown in FIG. 7, the housing 4 and the cover 6 are
It is permissible to adopt a configuration in which the communication ports 11 and 12 are provided at the boundary portion between and. Furthermore, it is acceptable to provide the communication ports 11 and 12 on the upper and lower portions of the cover 6. This is because direct sunlight is less likely to reach these portions when compared with the back portion S3 of the housing 4.

(3) Like the inner mirror 37 of the third example shown in FIG. 8, the first ventilation port 11 may be provided in the front operating portion of the cover 6 (for example, the mounting hole of the push switch 8). . This is because the front surface of the mirror body 2 is less likely to be exposed to direct sunlight as compared with the back portion S3 of the housing 4.

(4) The ventilation hole 12 may be formed in the bracket 3. The solar cell plate 25 may be attached to the bracket 3 (more preferably, the surface of the bracket 3 on the windshield side).

(5) The solar cell plate 25 does not have to be embedded in the housing 4, but may be an external protruding type or a separately mounted type. (6) It is possible to turn on and off the fan motor 24 using a means other than the thermostat 26. For example,
The light sensor may be used to measure the light, and the fan motor 24 may be operated when the sunlight is above a predetermined value during the midsummer day.

(7) The inner mirror 38 of another example 4 shown in FIGS. 9 and 10 may be used. In this inner mirror 38, as in the inner mirror 1 of the first embodiment, the vent holes 11 and 12 that communicate the inside and outside of the housing 4 with each other.
Are provided on the upper part S2 and the lower part S1, respectively. However, in the first embodiment, the vents 11 and 12 are oriented in the up-down direction, whereas in the other example 4, it is in the front-rear direction (horizontal direction) (see FIGS. 9 and 10). And, even with such a configuration, it is clear that the same operational effects as those of the first embodiment can be obtained. In FIG. 11,
Molds 13 and 14 for molding the housing 4 that constitutes the inner mirror 38 of the other example 4 are shown. The vent holes 11 and 12 are formed by the presence of protrusions on the inner wall surface of the mold 14.

Here, in addition to the technical ideas described in the claims, the technical ideas grasped by the above-described embodiments and the like will be listed below. (1) An inner mirror provided with a housing and a light reflector arranged in an opening of the housing, wherein the housing is provided with ventilation means for replacing air inside and outside the housing.

(2) An inner mirror according to any one of claims 2 and 3, characterized in that power is supplied to the ventilation means from a solar cell provided on the back of the housing. (3) An inner mirror provided with a housing and a light reflector arranged in an opening of the housing, wherein the housing is provided with ventilation means for replacing air inside and outside the housing.

(4) In an inner mirror provided with a housing and a light reflector arranged in an opening of the housing, ventilation means for exchanging air inside and outside the housing is housed in the housing. An inner mirror that does.

(5) An inner mirror having a housing and a light reflector arranged in an opening of the housing, which is provided with ventilation means composed of a blower fan and a fan motor for driving the blower fan. The inner mirror that is characterized.

(6) An inner mirror having a housing and a light reflector arranged in an opening of the housing, wherein a vent for communicating the inside and outside of the housing is provided at a position other than the back of the housing. Inner mirror characterized by that.

(7) The inner mirror according to any one of claims 1 to 3, wherein the vent hole is formed at the same time when the housing is molded. (8) A housing for an inner mirror in which a light reflector is arranged in the opening, and a housing for the inner mirror in which a vent for communicating the inside and outside of the inside is provided around the opening. .

(9) An inner mirror housing in which a light reflector is fixed in its opening, and an upper and lower part of the inner mirror housing are provided with ventilation holes for communicating the inside and outside of the inner mirror. For housing.

The technical terms used in this specification are defined as follows. "Energy conversion means: A device that converts light energy into energy other than heat, such as a solar cell that converts light energy into electrical energy."

[0061]

As described in detail above, according to the inventions described in claims 1 to 6, since the inside of the housing is ventilated through the communication port, it is possible to provide an inner mirror resistant to heat. it can. Therefore, it is possible to reliably prevent malfunction or destruction of the circuit board housed in the housing.

In particular, according to the second aspect of the invention, since the communication port is provided at least in the lower part, it is possible to provide an inner mirror that is resistant to heat without significantly impairing the design.

According to the third aspect of the invention, since the communication ports are provided in both the upper part and the lower part, sufficient ventilation can be achieved, and the designability and heat resistance can be further improved. be able to.

According to the invention described in claims 4 to 6, since the ventilation means actively performs the ventilation, it is possible to further improve the heat resistance. According to the invention described in claim 6, it is possible to achieve energy saving and noise prevention when the ventilation means is provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an inner mirror according to a first embodiment.

FIG. 2 is a schematic side sectional view of the same inner mirror.

FIG. 3 is a schematic sectional view for explaining a method of forming the same inner mirror.

FIG. 4 is a schematic side sectional view showing an inner mirror according to the second embodiment.

FIG. 5 is a front sectional view of a housing of the same inner mirror.

FIG. 6 is a perspective view showing an inner mirror of another example 1.

FIG. 7 is a schematic side sectional view showing an inner mirror of Modification 2.

FIG. 8 is a schematic side sectional view showing an inner mirror of Modification 3.

FIG. 9 is a perspective view showing an inner mirror of Modification 4.

FIG. 10 is a schematic side sectional view of the inner mirror.

FIG. 11 is a schematic sectional view for explaining a method of forming the inner mirror.

FIG. 12 is a perspective view showing a conventional inner mirror.

FIG. 13 is a schematic side sectional view showing a conventional inner mirror.

[Explanation of symbols]

1, 21, 31, 34, 37, 38 ... Inner mirror,
4 ... Housing, 4a ... Housing opening, 5 ... Mirror module as light reflector, 11 ... First vent,
12 ... Second vent hole, 24 ... Fan motor constituting ventilation means, 24a ... Blower fan constituting ventilation means, S1
… The lower part of the housing where the direct sunlight is difficult to reach, S2… The upper part of the housing where the direct sunlight is difficult to reach, S4… The side of the housing where the direct sunlight is difficult to reach.

Claims (6)

[Claims] 1. A housing (4) and its housing (4).
Inner mirror (1, 21, 31, 34, 37, 3 provided with a light reflector (5) arranged in the opening (4a) of
8), the ventilation holes (11, 12) communicating between the inside and outside of the housing (4) are connected to the mirrors (1, 21, 31, 3).
4, 37, 38) an inner mirror, which is provided at a place (S1, S2, S4) where direct sunlight is hard to reach. 2. A housing (4) and its housing (4).
Inner mirror (1, 21, 31, 34, 37, 3 provided with a light reflector (5) arranged in the opening (4a) of
8), the ventilation holes (11, 12) communicating between the inside and outside of the housing (4) are at least the same housing (4)
Inner mirror characterized by being installed in the lower part (S1). 3. A housing (4) and its housing (4).
An inner mirror (1, 21, 34, 37, 38) having a light reflector (5) arranged in the opening (4a) of the air vent (1) for communicating the inside and outside of the housing (4).
1, 12) are provided on the upper part (S2) and the lower part (S1) of the housing (4), respectively. 4. A housing (4) and its housing (4).
In the inner mirror (21) provided with the light reflector (5) arranged in the opening (4a) of the ventilator (24, 2) for exchanging the air inside and outside the housing (4).
The inner mirror according to any one of claims 1 to 3, wherein 4a) is housed in the same housing (4). 5. The inner according to claim 4, wherein the ventilation means is constituted by a blower fan (24a) and a fan motor (24) for driving the blower fan (24a). mirror. 6. The inner mirror according to claim 5, wherein the fan motor (24) is configured to operate when the temperature exceeds a predetermined temperature.