JP3120235U - Front brake light circuit - Google Patents

Abstract

[PROBLEMS] To significantly reduce automobile accidents at intersections, etc., from pedestrians and oncoming vehicles, it is immediately known that the traveling vehicle is in a state of stopping by stepping on the brake, and from the preceding vehicle to the following vehicle Providing a front brake light with low power consumption that immediately recognizes that the vehicle is in a state of being stopped by stepping on the brake.
A light source of a front brake light 1 is a light emitting diode, and when the surrounding brightness is dark such as at night, the light emitting diode is dimmed by turning off the photodiode. Automotive front brake lights and circuits.
[Selection] Figure 3

Description

  The present invention relates to a front brake light for an automobile and its circuit.

2. Description of the Related Art Conventionally, car accidents in which a traveling vehicle collides with a pedestrian, an oncoming vehicle, or a subsequent vehicle collides at an intersection or a pedestrian crossing. The cause is that in the front of the running car, from the pedestrian, oncoming car, or preceding car, you can not evacuate because you do not know whether the car is in a stopped state by stepping on the brake, In many cases, an accident occurs.
However, when the front brake light is provided, if the power consumption is large, the battery is consumed unnecessarily, causing another problem of insufficient battery power.
If the front brake light is too bright, pedestrians, oncoming vehicles, and front vehicles will feel dazzling.
The visual ability is reduced, and it becomes unsafe in return. Especially in a dark environment such as at night, the influence becomes significant, and safety is hindered unless switching from daytime is performed.

  The present invention provides an epoch-making forward brake light and circuit that avoids the above-mentioned accident and avoids the above-mentioned practical problems.

  The light emitting diode and the base are housed in a case, and lens means is fixed to the front end portion of the case, and light is transmitted through the lens means. It is attached to an indoor rear-view mirror in the vehicle body of the automobile or at a position in front of the vehicle body by fixing means such as bonding or screwing directly or through a universal joint.

  The negative terminal of the light emitting diode is electrically connected to the negative electrode in the substrate of the substrate by conductive connection means such as solder, and the negative electrode in the substrate is in parallel or in series with at least one light emitting diode. The terminal is electrically connected to the ground of the vehicle body, while the positive terminal of the light emitting diode is electrically connected to the positive electrode in the substrate of the substrate by means of conductive connection means such as soldering. The positive electrode in the substrate is electrically connected in parallel or in series with at least one light emitting diode, and the upstream positive circuit is further connected from the brake light switch that operates when the brake is depressed to the rear brake light. By being connected in the middle of the connected plus circuit, the light emitting diode is charged when the brake light switch is activated. Re front brake lights for motor vehicles, characterized in that to emit light, and to provide a circuit.

  A resistor R is inserted in the plus circuit upstream of the plus electrode in the substrate, and both ends of the photodiodes that are turned on and off depending on the brightness are connected in parallel to the circuit at both ends of the resistor R to electrically When the photodiode receives light and is in a conductive state, a current flows in parallel, and in the non-conductive state, the light is dimmed by the resistor R.

  In addition, the light emitting diode is dimmed when the photodiode becomes non-conductive in a dark state in an arbitrary range of ambient brightness of 30 lux or less to 0 lux. Provide front brake light and circuit.

  In addition, the number of the light emitting diodes is at least one to 80 lamps electrically connected in parallel or in series, and the total luminous intensity of all the light emitting diodes in a non-dimming state is 1 to 500 candela. The above-described front brake light and circuit for an automobile are provided.

The front brake light and circuit of the present invention have many excellent effects as follows.
(1) Pedestrians and oncoming vehicles can immediately recognize that the traveling vehicle is in a state of being stopped by stepping on the brake. Therefore, an action to prevent a collision accident can be taken, and many accident prevention effects are exhibited. In addition, since it is immediately known that the following vehicle is in a state of being stopped by stepping on the brake, the preceding vehicle can take action to prevent a rear-end collision, and exhibits many accident prevention effects.
(2) Since the light-emitting diode can obtain sufficient brightness with very low power consumption, it is possible to avoid shortage of the remaining battery power and to prevent a reduction in viewing ability due to excessive glare.
(3) In an arbitrarily dark state where the ambient brightness is 30 lux or less to 0 lux, the light emitting diode is dimmed when the photodiode becomes non-conductive, which makes the pedestrian, oncoming vehicle, and driver dazzled. Can be recognized safely in the dark without giving
(4) Since the device and the circuit are lightweight and simple, they can be easily attached to new and used cars, and can be provided at low cost.
(5) Because it is installed in the interior of an automobile, there are very few insulation problems, breakage, corrosion, etc. due to rain or external obstacles.
(6) Also, because it is indoors, it is difficult to meet damage such as theft.
(7) Since the front brake light is attached via a universal joint, it can be easily recognized from a pedestrian, an oncoming vehicle, and a preceding vehicle, and can be adjusted to a position that does not give glare.
(8) As shown in FIG. 6 and FIG. 7, it is easier to understand if it is composed of English or Japanese sentences.

    As described above, the present invention has a simple structure and is very convenient, and has an innovative configuration that can be used by all.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention. Details will be described below with reference to the drawings.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a perspective view of a front brake light installation state and a circuit according to the first embodiment.
Conventionally, the circuit 53 from the battery plus pole 52 of the battery 51 installed in the vehicle body 50 is such that when the brake pedal 54 is depressed, the brake light switch 55 is pressed, and the circuit 53 and the circuit 56 are brought into conduction. Thus, the rear brake lamp 57 is configured to be lit.

In the present embodiment, the plus circuit 16 is connected at an intermediate position of the circuit 56 and is electrically connected. The plus circuit 16 is electrically connected to an indoor rearview mirror 58 (commonly referred to as a room mirror) in the vehicle body 50 of the automobile or a front brake lamp 1 mounted at any position in front of the vehicle body. The minus circuit 11 of the front brake light 1 is connected to the ground 60 of the vehicle body 50.
With this configuration, the apparatus and the circuit are lightweight and simple, so that they can be easily attached to new and used cars, and can be provided at low cost.

  2 is a front view of the front brake light 1 according to the first embodiment, FIG. 3 is a detailed cross-sectional view along the line AA in the cross-section AA in FIG. 2, and FIG. 4 is a cross-sectional view along the line BB in FIG. -B The cross-sectional detailed drawing is shown.

The details of the first embodiment will be described with reference to FIG. 3. In the configuration of the front brake light 1, the light emitting diode 2 and the substrate 3 are housed in a case 4.
The lens means 5 is fixed to the front end of the case 4 by fixing means such as adhesion and screwing, and the light emitted from the light emitting diode 2 is transmitted through the lens means 5.
The lens means 5 is provided with convex portions, projections, grooves, concave portions and the like for concentrating and scattering the light of the light emitting diode 2.

  The rear end surface of the case 4 is fixed to the flange portion 7 of the universal joint 6 by fixing means such as bonding and screwing, and the bottom plate portion 8 of the universal joint 6 is also fixed to the automobile by the fixing means 9 such as bonding and screwing. It is directly attached to the indoor rearview mirror 58 in the vehicle body or without a universal joint. Alternatively, it is attached to any position in front of the vehicle body 50 directly or via a suitable fitting with respect to a surface other than the rear end surface.

The negative terminal 2b of the light emitting diode 2 is electrically connected to the negative electrode 3b of the substrate 3 by conductive connection means 10 such as soldering.
On the other hand, the positive terminal 2a of the light emitting diode 2 is electrically connected to the in-substrate positive electrode 3a of the substrate 3 by conductive connection means 10 such as soldering.

FIG. 5 shows an overall circuit diagram of the first embodiment.
The in-substrate negative electrode 3 b is electrically connected to at least one light emitting diode 2 in parallel or in series, and the end thereof is connected to the ground 60 of the vehicle body 50. In this drawing, an example of parallel connection is shown.
On the other hand, the positive electrode 3a in the substrate is electrically connected to at least one light emitting diode 2 in parallel or in series via the respective light emitting diode resistors 2c. In the drawing, similarly, an example of parallel connection is shown.

  A dimming resistor 13 is inserted in the plus circuit 12 upstream of the in-substrate plus electrode 3a, and the photodiodes that are turned on / off by the brightness of the surroundings are provided in the circuits at both ends of the dimming resistor 13. 14 and both ends of the circuit having the photodiode resistor 14 a are connected in parallel with the dimming resistor 13 and are electrically connected by the contact 15.

  FIG. 4 shows a mounting state of the photodiode 14 and the dimming resistor 13 in the BB cross section.

  Further, the plus circuit 16 further upstream from the contact point 15 shown in FIG. 5 is connected to the middle of the circuit 56 connected to the rear brake light 57 from the brake light switch 55 that operates when the brake pedal 54 is depressed. When the brake light switch 55 is activated, the light emitting diode 2 is charged and emits light.

When the surrounding brightness is bright, the photodiode 14 is configured to be in a conductive state by receiving light.
Therefore, a current flows in parallel with the dimming resistor 13, and the current generated by the battery 51 flows almost without being affected by the dimming resistor 13.

  According to the inventor's experiment, in the case of the brightness exceeding 30 lux, which is a faintly dark level, the surroundings are bright. It is necessary to be visible, and it becomes a normal use state.

  On the other hand, when the surroundings become dark and the brightness is in the range of 30 lux to 0 lux, which is a dark place, the photodiode 14 is in a non-conducting state. Therefore, since the current flows through the dimming resistor 13, the current value decreases, and the light emitting diode 2 is dimmed. When the surroundings are dark, the brightness at daytime is too dazzling for pedestrians, oncoming vehicles, front vehicles, etc., and the reflected light will be in the eyes of the driver and hinder driving. It is.

Next, regarding the number of light-emitting diodes and the light intensity, it is extremely important in practice to configure them optimally when actually mounted on the vehicle, and the inventor has made many prototypes and experiments. The optimum condition could be obtained.
In addition, we found the optimum conditions for the number and intensity of light-emitting diodes, and achieved the purpose of the invention. Therefore, anyone provides a technical idea that is not just a design choice that can be conceived.

The configuration of the light emitting diode 2 includes at least one lamp and no more than 80 lamps, which are electrically connected in parallel or in series.
When the number of lamps is 80 or more, the structure is too complex and easily breaks down, and the lens means on the front surface becomes large, so that it is difficult to store in that range, resulting in high costs.

The total luminous intensity of all the light emitting diodes 2 is selected in the range of 1 to 500 candela.
This is because the amount of light is insufficient when less than 1 candela, and the expected effect cannot be exhibited. Next, if it exceeds 500 candela, it is too dazzling and returns to the eyes, which makes it unsafe and reflects on the inner surface of the front glass, making it difficult for the driver to see. Moreover, because the power consumption is large, the remaining amount of the battery is insufficient, which is another unsafe factor.

  Regarding the material of the case 4, the light emitting diode 2, and the lens means 5, a heat resistant material that can withstand the heat from the sun, for example, a metal, a heat resistant resin, ceramics, glass or the like is used together with a necessary strength.

A second embodiment of the present invention is shown in FIG.
FIG. 6 shows a front view of the second embodiment. In order to make it easier to understand that the brake is being depressed, English and Japanese sentences are shown in an array of light emitting diodes 2.
FIG. 7 shows the configuration of the second embodiment in this manner, so that a person or driver who does not know that it is a brake light in advance can immediately recognize that the brake is being depressed.

A third embodiment of the present invention is shown in FIG.
FIG. 7 shows a front view of the third embodiment. In order to make it easier to understand that the brake is being depressed, a sentence such as English or Japanese is written on the front surface or the back surface of the lens means, and light is emitted from the inside. This is a transmissive display by the diode 2.
Similar to FIG. 6, this configuration allows a person or driver who does not know that it is a brake light in advance to immediately recognize that the brake is being depressed.

[Modification]
The present invention includes the following modifications.
(1) A movable neutral density filter (not shown) for dimming light from the lens surface by turning up and down or moving can be provided on the front surface of the lens means 5.
In this configuration, it is possible to manually reduce the light by placing a movable neutral density filter in front of the lens means 5 without installing the photodiode 14, so that the device is simple and inexpensive to manufacture. Can do.

  (2) A light shielding sleeve (not shown) is provided on the front outer periphery of the case 4, and the light from the light emitting diode 2 leaks so that the driver does not feel glare by sliding the light shielding sleeve. Can be prevented.

(1) Pedestrians and oncoming vehicles will immediately know that the traveling vehicle is in a state where it is stepped on the brake, and the preceding vehicle is The action to prevent rear-end collision can be taken, and many accident prevention effects are exhibited.
(2) Since the light-emitting diode can obtain sufficient brightness with very low power consumption, it is possible to avoid a shortage of remaining battery power, etc., and by reducing the light, it is possible to prevent a reduction in viewing ability due to excessive glare.
(3) Significantly reduce the number of fatalities and disabilities due to traffic accidents, said to be more than 10,000 per year.

  The installation state of the front brake light of Example 1, and the perspective view of a circuit are shown.   It is a front view of the front brake light of Example 1.   FIG. 3 is a detailed cross-sectional view taken along a section AA of Example 1.   FIG. 3 is a detailed cross-sectional view taken along a section AA of Example 1.   1 is an overall circuit diagram of Embodiment 1. FIG.   6 is a front view of Example 2. FIG.   6 is a front view of Example 3. FIG.

Explanation of symbols

1 Front brake light 2 Light emitting diode 2
2a Positive terminal 2b Negative terminal 2c Light-emitting diode resistor 3 Substrate 3a In-substrate positive electrode 3b In-substrate negative electrode 4 Case 5 Lens means 6 Universal joint 7 Flange part 8 Bottom plate part 9 Fixing means 10 Conducting connection means 11 Negative circuits 12, 16 Plus circuit 13 Dimming resistor 14 Photodiode 14a Photodiode resistor 15 Contact 50 Car body 51 Battery 52 Battery plus electrode 53, 56 Circuit 54 Brake pedal 55 Brake light switch 57 Rear brake light 58 Indoor rearview mirror 60 Ground

Claims (3)

  The light emitting diode and the base are housed in a case, and lens means is fixed to the front end portion of the case, and light is transmitted through the lens means. It is attached either directly to the interior rearview mirror in the car body of the automobile by a fixing means such as bonding or screwing through a universal joint or the like, or in front of the car body. In addition, the conductive connecting means such as solder is electrically connected to the negative electrode in the substrate of the substrate, and the negative electrode in the substrate is electrically connected in parallel or in series to at least one light emitting diode, The terminal is electrically connected to the ground of the vehicle body, while the positive terminal of the light emitting diode is electrically connected to the positive electrode in the substrate of the substrate by means of conductive connection means such as soldering. The positive electrode in the substrate is electrically connected to at least one light emitting diode in parallel or in series, and the upstream positive circuit is located behind the brake light switch that operates when the brake is depressed. An automotive front brake light and circuit, characterized in that when connected to the middle of a plus circuit connected to a brake light, a light emitting diode is charged and emits light when a brake light switch is activated.   A resistor R is inserted in the plus circuit upstream of the plus electrode in the substrate, and both ends of the photodiodes that are turned on and off depending on the brightness are connected in parallel to the circuit at both ends of the resistor R to electrically When the photodiode receives light and is in a conductive state, a current flows in parallel, and in the non-conductive state, the circuit is dimmed by the resistor R. 2. The front of an automobile according to claim 1, wherein the light emitting diode is dimmed when the photodiode becomes non-conductive in a dark state in an arbitrary range of 30 lux or less to 0 lux. Brake lights and circuits.   The number of the light emitting diodes is at least 1 to 80 lamps electrically connected in parallel or in series, and the total luminous intensity of all the light emitting diodes in a non-dimming state is 1 to 500 candela. The front brake light and circuit for automobiles according to claim 1 or 2.

Images