JPH08237150A - Radio wave receiver for automobile - Google Patents

Abstract

PURPOSE: To provide a radio wave receiver of a solar charging type for automobile in which a high light receiving efficiency is always ensured. CONSTITUTION: This receiver is provided with a case 1 having an outer shape almost in matching with a room mirror, a mount fixture 9 fitting and fixing the case 1 to a rear side of the room mirror, and a solar panel 10 whose light receiving face is set to a prescribed position of a front side of the case 1 and also with a 2nd solar panel 10 supported at a proper position of a lower end of the case 1 detachably. The 2nd solar panel 10 is fitted to the case 1 with a tilt by a prescribed angle. The 2nd solar panel 10 has a projection 12 and cunti-lever 14 supported by the projection 12 and the case 1 has a fitting hole into which the projection 12 is inserted and an engagement section engaged with the cantilever.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio wave receiver, and more particularly to a radio wave receiver for an automobile which can accurately receive an electric wave emitted from the front of the automobile.

[0002]

2. Description of the Related Art In a vehicle such as a passenger car, there is known a radio wave receiver capable of receiving a radio wave transmitted from the front in the traveling direction of the vehicle. This radio wave receiver has a radio wave receiving part, a receiving circuit part, etc., housed in a box-shaped case. Conventionally, the main type of radio wave receiver of this type is the so-called solar charging cordless type, non-charging type. There are a cordless type and a power supply wired type.

Among these, the solar rechargeable cordless type is equipped with a solar battery as a power source. Further, the non-rechargeable cordless type is equipped with a replaceable dry battery, and the power source wired type uses a battery mounted on a vehicle, a cigarette lighter socket or the like as a power source, and this type is most popular at present. When mounting such a radio wave receiver, for example, a room mirror, a sun visor, a dashboard or the like is used, and the radio wave receiver can be mounted in an appropriate place. In addition, the non-rechargeable cordless type may be stored in a pocket of clothes of a driver or the like.

The present applicant has already proposed a solar-rechargeable cordless type in which a rearview mirror is attached. This car radio receiver is shown in FIG. 8 and FIG.
As shown in FIG. 1, the radio wave receiving unit 4, the receiving circuit unit, the receiving display unit 5, and the power storage battery 6 are housed, and the room mirror 100
A case 1 having an outer shape substantially matching with the case 1, and a case 1
Is attached to the rear side of the room mirror 100 so as to be detachably attached and fixed, and the case 1 so that the light receiving surface 8a is set at a predetermined position on the front side of the case 1.
The solar panel 8 attached to the.

The case 1 is formed by integrating the front cover 2 and the back cover 3 and connecting them by means of screws or the like. Further, the radio wave receiver 4 is adapted to be fitted in the opening 7 of the front cover 2.

According to this automobile radio receiver, the case 1 is attached to the rear side of the rearview mirror 100 via the attachment 9. In this case, the case 1 can be easily and surely attached by expanding the two sets of the attachments 9 up and down (see the double-headed arrow in FIG. 9), and the grip 9
a elastically engages with the upper and lower ends of the rearview mirror 100,
The case 1 can be securely fixed. Even when the room mirror 100 is supported by the supporting hinge 200 from the vehicle ceiling 300 as shown in FIGS. 8 and 9, by forming the recessed portion 1a in the case 1, the hinge is formed. It can be attached accurately without interfering with 200.

[0007]

However, according to such a conventional solar rechargeable radio wave receiver, the solar battery 8 is generated by the solar panel 8 set at a proper position on the front side of the receiver case 1. ,
That is, the storage battery 6 for power supply is charged, but since the solar panel 8 itself is fixedly provided in the case 1, there is room for improvement in terms of the efficiency of receiving sunlight.

That is, for example, in the morning, the sun rays incident through the windshield 400 of the vehicle can be received relatively efficiently, but the incident angle of the sun rays becomes larger as the sun becomes higher. Solar panel 8
Is fixed to the case 1, that is, it is arranged in the vertical direction as shown in the drawing, so that it may be difficult to receive strong light in the afternoon when the incident angle becomes large. As described above, in the conventional solar rechargeable radio wave receiver, it is not always easy to efficiently receive the sun's rays depending on the time zone in which it is used.

In view of the above situation, it is an object of the present invention to provide a radio wave receiver for an automobile, which is of a solar charging type and can always ensure a high light receiving efficiency.

[0010]

An automobile radio wave receiver according to the present invention includes a case having an outer shape that accommodates a radio wave receiving unit, a receiving circuit unit, a receiving display unit, and a storage battery for a power supply, and that is substantially aligned with a rearview mirror. , A mounting member configured to detachably mount and fix the case on the back side of the room mirror, and the mounting surface of the case so that the light receiving surface thereof is set at a predetermined position on the front side of the case And a second solar panel configured to be detachably supported at an appropriate position on the lower end portion of the case.

Further, in the automobile radio wave receiver of the present invention, the second solar panel is attached so as to be inclined at a predetermined angle with respect to the case.

Further, in the automobile radio wave receiver of the present invention, the second solar panel has a projecting piece projectingly provided at a proper end portion thereof and a cantilever supported by the projecting piece, and the case is provided. Includes a fitting hole into which the projecting piece is inserted and an engaging portion that engages with the cantilever.

[0013]

According to the radio wave receiver for an automobile of the present invention, the case having the radio wave receiving portion, the receiving circuit portion and the like is attached to the rear side of the rearview mirror through the attaching tool. A radio wave receiving unit is provided on the front side (front side of the vehicle) of the case thus attached, and thus the radio wave receiving unit can reliably receive the radio wave transmitted from the front side in the traveling direction of the vehicle.

The solar panel set on the front side of the case receives sunlight and effectively generates an electromotive force to charge the solar battery. Particularly according to the present invention, the second solar panel is provided at a proper position on the lower end portion of the case. This second solar panel is mounted so as to be inclined at a suitable angle with respect to the case, and even if the incident angle of the sunlight changes, the second solar panel's light receiving surface can efficiently reflect the sunlight. Can receive light.

According to the present invention, the second solar panel is detachably supported at a proper position on the lower end portion of the case. In this case, the second solar panel has a projecting piece protruding at its end and a cantilever supported by the projecting piece, and the case has a fitting hole into which the projecting piece is inserted. It has an engaging portion that engages with the cantilever. The second solar panel can be easily and surely mounted and fixed by the engagement of the cantilever simply by inserting the projecting piece of the second solar panel into the fitting hole of the case. Further, the second solar panel can be easily removed from the case when necessary, and has excellent usability.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a radio wave receiver for a vehicle according to the present invention will be described below with reference to FIGS. Note that the same reference numerals are used for members that are substantially the same as or corresponding to those in the conventional example.

1 to 4 show the overall construction of an automobile radio wave receiver of the present invention. As shown in FIG. 1, this automobile radio wave receiver includes a radio wave receiver main body and a second solar panel 10 detachably attachable to the main body. First, in the radio receiver body, case 1
Has an outer shape that substantially matches the rearview mirror 100. In this embodiment, the room mirror 100
Is supported from the ceiling 300 via a supporting hinge 200 as in the example shown in FIG.

Case 1 is made of synthetic resin material (ABS resin)
Although it is molded by such as the front cover 2 as shown in FIG.
(Arrow Fr side) and the back cover 3 (Arrow Rr side) are integrated. The front cover 2 and the back cover 3 are coupled to each other with screws or the like. An appropriate adhesive or the like may be used instead of the screw.

As shown in FIG. 2, the case 1 also accommodates a radio wave receiving section 4, a receiving circuit section (not shown), a receiving display section 5, and a power storage battery 6. The radio wave receiving portion functioning as a receiving antenna is adapted to be fitted in the opening 7 of the front cover 2, and a sheet material having a radio wave transmitting property is attached to the surface thereof. The receiving circuit section processes the radio wave received by the radio wave receiving section 4, and displays the result on the reception display section 5 or the like. The reception display unit 5 is composed of, for example, an LED or the like, and is provided at an appropriate place such as a lower portion of the case 1.

On the front cover 2, the solar panel 8 is mounted so that the light receiving surface 8a thereof is set on the surface of the case 1 as shown in FIGS. A pair of solar panels 8 are provided on both left and right sides of the front cover 2 as in this illustrated example. The solar panel 8 is arranged in the vicinity of the windshield 400, but is set so that it can always receive sunlight efficiently as will be described later. It is connected to the power storage battery 6 and is charged.

The case 1 is removably attached and fixed on the rear side of the room mirror 100 by the attachment 9. In this embodiment, there are two sets of fixtures 9 (a total of four) formed from a pair of upper and lower parts protruding from the case 1. Fixture 9
Is a gripper 9 for gripping the upper and lower ends of the rearview mirror 100.
In particular, the lower mounting member 9 has a fixed shape, and the upper mounting member 9 is configured to be movable by a constant stroke. Then, the rearview mirror 100 is sandwiched from both upper and lower sides to be elastically engaged. Case 1
A recessed portion 1a is formed on the side of the rear mirror 100 so as not to interfere with the supporting hinge 200 of the room mirror 100.
It is assumed that the depth and the like of the recess 1a are appropriately set in relation to the attachment position or size of the hinge 200.

In this embodiment, there is provided a second solar panel 10 which is constructed so as to be detachably supported at a proper position on the lower end portion of the case 1, in this example, the central portion of the case 1. As shown in FIG. 4, the second solar panel 10 is attached so as to be inclined with respect to the case 1 by a predetermined angle α, and is configured in a tongue shape in the front downward direction as illustrated. In this embodiment, α = 110 to 115 ° is preferable.
It is set to a degree.

Here, FIG. 6 and FIG. 7 show a structural example of the second solar panel 10. In this example, the pair of second solar panels 10 is made of synthetic resin (ABS resin).
It is supported by a frame body 11 made of metal. The second solar panel 10 has substantially the same performance as the solar panel 8 on the radio receiver main body side, and is set so that the light receiving surface 10a thereof faces the front. At the center of the end of the frame body 11, a projecting piece 12 is provided so as to be inclined with respect to the frame body 11 by a predetermined angle.
The projecting piece 12 can be integrally formed with the frame body 11, and is inserted into the fitting hole of the case 1 as described later.

A cantilever 14 is formed on the protrusion 12 by providing a slit 13. Cantilever 1
Reference numeral 4 denotes a cantilevered type supported by the projecting piece 12 so that it can be flexibly deformed to an appropriate degree, and its tip portion 14a is formed in a stepped or key-like shape as shown in FIG. Slightly projecting upward from the flat surface of. The inclination angle α is set according to the angle of the protrusion 12 with respect to the frame 11.

On the other hand, in the case 1, as shown in FIG. 5, the fitting hole 15 into which the protruding piece 12 is inserted and the cantilever 14 are inserted.
It has an engaging portion 16 for engaging with. The fitting hole 15 is provided at the center of the lower end of the case 1, and has the protruding piece 12 inserted therein.
Are dimensioned so as to pinch properly. Further, it has a taper portion 15a so that the projecting piece 12 can be easily inserted (see FIG. 5C). The engagement portion 16 is formed by cutting out the lower end portion of the back cover 3, and the cantilever 1
It is possible to prevent the projecting piece 12 from coming off by engaging the front end portion 14a of No. 4 with. When the projecting piece 12 is inserted, the cantilever 14 is appropriately flexed and deformed, and the engaging portion 1 is inserted at the insertion end.
6 automatically engages.

In the above case, as shown in FIG. 6B, the lead wire 17 connected to the second solar panel 10 is provided, and the lead wire 17 is connected via the connector 18 to the radio receiver main body. It is connected to the side connector 19 (see FIG. 2B). The second solar panel 10 is connected to the power source storage battery 6 on the radio receiver main body side, and the electromotive force thereof charges the power source storage battery 6. A power supply for a cigarette lighter of a vehicle may be connected to the connector 19, for example.

According to the automobile radio wave receiver of the present invention constructed as described above, the case 1 is attached to the rear side of the room mirror 100 via the attachment 9. In this case, the case 1 can be easily and surely attached by expanding the two sets of attachments 9 up and down, and the grip portions 9a elastically engage with the upper and lower ends of the case 1, The case 1 can be securely fixed.

In the radio wave receiver for an automobile thus mounted, first of all, a solar panel 8 is set on the front side of the case 1 in the radio wave receiver main body, and an electromotive force is generated by the solar panel 8 for power supply. The storage battery 6 is charged. Then, the radio wave receiving unit 4 provided on the front side of the case 1 can reliably receive the radio wave transmitted from the front in the traveling direction of the vehicle. The received electric wave is subjected to signal processing in the receiving circuit section and displayed on the reception display section 5.

Now, according to the present invention, in particular, the case 1 has a second solar panel 10 at the lower end thereof, and the second solar panel 10 is different from the case 1 as shown in FIG. And is attached at an angle α.
As described above, by providing the second solar panel 10 in addition to the solar panel 8 on the radio receiver main body side, the light-receiving surface 10a of the second solar panel 10 even when the incident angle of the sunlight changes. The solar light can be received efficiently at.

That is, for example, in the morning when the incident angle of sunlight is relatively small, the solar panel 8 on the radio receiver main body mainly receives the sunlight, and the electromotive force at that time causes the storage battery 6 for power supply to operate. To charge. In addition,
In this case, also on the light receiving surface 10a of the second solar panel 10, it is possible to generate a certain degree of electromotive force by receiving the sunlight. Further, when the incident angle of sunlight increases as the sun rises, in this case, the second solar panel 10 is attached at an angle α with respect to the case 1 as described above. The light-receiving surface 10a of the second solar panel 10 receives sunlight, and the electromotive force at that time receives the storage battery 6 for power supply.
Can be charged. Even in this case, the solar panel 8 can receive sunlight and generate a certain amount of electromotive force.

The incident angle of sunlight changes not only temporally as in the above case, but also regionally due to differences in latitude and the like. Further, although it changes in the same area depending on the season, the solar panel 8 and / or the second solar panel 10 efficiently receive light, that is, always receive light with high light-receiving efficiency, regardless of the angle of incidence of sunlight. Therefore, electromotive force can be effectively generated.

By the way, the second solar panel 10 is
It is detachably supported at the lower end of the case 1. When attaching the second solar panel 10 to the case 1, the protrusion 1
The second solar panel 10 can be surely mounted and fixed by a simple operation of inserting 2 into the fitting hole 15 of the case 1. Further, when the second solar panel 10 is removed from the case 1, it can be easily removed by pushing the tip end portion 14a of the cantilever 14 downward to disengage it from the engaging portion 16. Second like this
The solar panel can be detached so that it can be used or not used as needed and has excellent usability.

Further, since the second solar panel 10 is mounted so as to be inclined with respect to the case 1, the driving safety is guaranteed without hindering the view from the driver's side.
As a result, the so-called PL method or the like can be effectively dealt with. In the above-mentioned embodiment, the angle setting example suitable as the inclination angle α of the second solar panel 10 has been described, but it is not limited to the specific numerical value, and can be set to an appropriate size. .

[0034]

As described above, according to the present invention, since the second solar panel is provided in addition to the solar panel on the radio receiver main body, even when the incident angle of the sunlight changes, It has the advantage that it can always receive light efficiently and effectively generate electromotive force.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of an automobile radio wave receiver according to an embodiment of the present invention.

FIG. 2 (a) is a front view of a radio wave receiver for an automobile of the present invention, and FIG. 2 (b) is a top view.

FIG. 3 (a) is a rear view of the automobile radio wave receiver of the present invention, and FIG. 3 (b) is a bottom view.

FIG. 4 is a side view of the automobile radio wave receiver of the present invention.

5A and 5B show a structure around a fitting hole of a case according to the present invention, FIG. 5A is an enlarged view of part A of FIG. 2A, and FIG.
FIG. 3A is an enlarged view of part B in FIG. 3A, and FIG. 3C is an enlarged view of part C in FIG. 3B.

FIG. 6A is a front view and FIG. 6B is a rear view showing a configuration example of a second solar panel according to the present invention.

7 (a) is a side view showing a configuration example of a second solar panel according to the present invention, and FIG. 7 (b) is an enlarged sectional view of a portion D of FIG. 7 (a).

FIG. 8 is a front view of a conventional automobile radio wave receiver.

FIG. 9 is a side view of a conventional automobile radio wave receiver.

[Explanation of symbols]

 1 Case 2 Front Cover 3 Back Cover 4 Radio Wave Receiving Section 5 Reception Display Section 6 Power Storage Battery 7 Opening 8 Solar Panel 8a Light-Receiving Surface 9 Fixture 9a Grip 10 Second Solar Panel 11 Frame 12 Projection 13 Slit 14 Cantilever 15 Fitting hole 16 Engagement part 17 Lead wire 18 Connector 19 Connector

Claims (3)

[Claims] 1. A case having an outer shape for accommodating a radio wave reception section, a reception circuit section, a reception display section, and a storage battery for power supply, and having an outer shape substantially aligned with a rearview mirror, and the case being attachable / detachable on the rear side of the rearview mirror A radio wave receiver for an automobile, comprising: a fixture configured to be attached / fixed to a case; and a solar panel attached to the case so that a light receiving surface thereof is set at a predetermined position on the front side of the case. An electric wave receiver for an automobile, comprising a second solar panel configured to be detachably supported at an appropriate place on a lower end portion of the case. 2. The radio wave receiver for an automobile according to claim 1, wherein the second solar panel is attached so as to be inclined with respect to the case by a predetermined angle. 3. The second solar panel has a projecting piece projectingly provided at a proper end portion thereof and a cantilever supported by the projecting piece, and the case is fitted with the projecting piece. The radio wave receiver for an automobile according to claim 1 or 2, further comprising a fitting hole and an engaging portion that engages with the cantilever.