An automotive lamp

Abstract

The application belongs to the technical field of automobile lamps, and provides an automobile lamp, which comprises a lamp body shell, is located in the interior of a vehicle body and above a wheel, and forms a closed containing space. A reset enabler is located outside the lamp body shell and above the wheel, rotates with the wheel, and is used for generating a changing magnetic field. A lamp body is located inside the lamp body shell. The lamp body comprises a reset receiver, which is used for receiving the magnetic field generated by the reset enabler and converting it into an electric field. The application is energy-saving and environment-friendly, and has the functions of prompting speed and reminding in rainy days.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile lighting, and particularly relates to an automobile lamp. BACKGROUND

[0002] The automobile lamps on the market currently mainly adopt a power supply method, that is, power supply through a low-voltage storage battery on a vehicle. This method has the following four problems:

[0003] 1. A special controller is needed for power supply, and automobile fuel or power battery power is consumed additionally;

[0004] 2. The power supply wire line of the lamp is long, metal materials are consumed, and the cost of the wire harness material is high;

[0005] 3. The installation of the lamp power supply wire harness on the vehicle is complex, wire harness fixing points are needed, time is consumed, and production efficiency is low;

[0006] 4. Water vapor or water can enter the lamp through the power supply wire harness to cause internal condensation, insulation, short circuit and other failure problems.

[0007] In order to solve the problem, Chinese patent publication No. CN219198957U discloses a lamp powered by converting focused sunlight into electric energy, comprising: a lamp body including a lamp shell, a lamp wick is inserted on one side of the lamp shell, and a lamp outer cover is sleeved on one end of the lamp shell; a conversion structure is fixedly connected to one end of the lamp shell and includes a focusing lens, and a solar energy collecting plate is arranged obliquely below the focusing lens. In the case of long-term rainy weather, the collected solar energy cannot meet the energy demand required by the lamp power supply, and the vehicle lamp cannot be always on. SUMMARY

[0008] The present application provides an automobile lamp.

[0009] The present application is realized by the following technical scheme:

[0010] The automobile lamp includes a vehicle wheel, a lamp body shell, which is located inside the vehicle body and above the vehicle wheel, and forms a sealed containing space. A reset enabler is located outside the lamp body shell and above the vehicle wheel, rotates with the vehicle wheel, and is used to generate a changing magnetic field. A lamp body is located inside the lamp body shell. The lamp body includes a reset receiver, which is used to receive the magnetic field generated by the reset enabler and convert it into an electric field.

[0011] Further, the lamp body further includes a closed loop circuit. The reset receiver is placed adjacent to the reset enabler relative to the closed loop circuit. The closed loop circuit includes a light emitter, a sensor and a control circuit, which are connected in series.

[0012] Further, the sensor is made of piezoelectric material, shaped as a sheet, containing free charges inside, for converting the free charges into electric energy through deformation, and also capable of restoring the shape under the action of electric field.

[0013] Further, the energy storage module is used for storing the electric energy generated by the sensor, and the conversion module is used for converting the electric energy stored in the energy storage module into electric current for the illuminator.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1. The lamp can be installed on a vehicle, and the lamp consumes no fuel and no power battery power when lit, saving energy and protecting the environment.

[0016] 2. As the vehicle speed increases, the brightness of the lamp also increases, which can play a lighting role and also indicate the vehicle speed.

[0017] 3. In rainy weather, the lamp can be automatically turned on, playing a role in reminding in rainy weather.

[0018] 4. The lamp power supply line is eliminated, reducing the consumption of metal materials and reducing the cost of wire harness materials.

[0019] 5. The lamp is easy to install and fix, reducing installation time and helping to improve vehicle production efficiency.

[0020] 6. It prevents the problem of internal condensation, insulation, short circuit and other faults caused by water vapor or water entering the lamp interior through the power supply wire harness.

[0021] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the structures indicated in the specification, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 The composition of the whole vehicle lamp is shown;

[0024] Figure 2 The working schematic diagram of the whole vehicle lamp is shown;

[0025] Figure 3The whole vehicle automobile lamp composition diagram in rainy day is shown;

[0026] Figure 4 The working schematic diagram of the whole vehicle automobile lamp in rainy day is shown. DETAILED DESCRIPTION

[0027] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0028] The automobile lamps on the market are mainly powered by the low-voltage storage battery on the vehicle, and have the following problems:

[0029] 1. A special controller is needed for power supply, and the automobile fuel or power battery capacity is consumed additionally.

[0030] 2. The power supply wire line of the lamp is long, metal materials are consumed, and the wire harness material cost is high.

[0031] 3. The installation of the power supply wire harness matched with the lamp on the whole vehicle is complex, the wire harness fixing point needs to be installed, time is consumed, and the production efficiency is low.

[0032] 4. The water vapor or water can enter the lamp interior through the power supply wire harness to cause internal condensation, insulation, short circuit and other failure problems.

[0033] The present application comprises a lamp body shell located inside the vehicle body and above the wheel, the lamp body shell forms a closed containing space, the lamp body is located inside the lamp body shell, and the reset enabler is located outside the lamp body shell. The lamp body comprises a closed loop circuit and a reset receiver arranged on the automobile, the closed loop circuit comprises a light emitter, a control circuit and a sensor. The sensor is deformed by the automobile driving, when the surface of the sensor receives external force extrusion deformation, the two ends of the sensor sheet will appear discharge phenomenon, i.e. positive piezoelectric effect, the control circuit comprises an energy storage module and a conversion module, the generated electric energy will be stored in the energy storage module of the control circuit, and the energy storage module can provide the conversion module. The conversion module converts the electric energy stored in the energy storage module, and outputs constant current or constant voltage to the light emitter. When the light emitter is a light emitting diode and a resistance type filament, the conversion module outputs constant current. When the light emitter is a xenon-filled ultraviolet-resistant crystal quartz glass tube, the conversion module outputs constant voltage. The light emitter converts the electric energy into light energy, and emits light.

[0034] The application establishes a lamp for a vehicle and a control circuit thereof, the lamp can be installed on the vehicle, and the lamp consumes no fuel and power battery power when lighting, saving energy and protecting the environment. With the increase of the speed of the vehicle, the brightness of the lamp also increases, which can play a lighting role and prompt the size of the speed. In rainy days, the lamp can be automatically turned on, playing a role of reminding in rainy days. The lamp power supply line is removed, metal materials are consumed, and the cost of wire harness materials is reduced. The lamp is installed and fixed conveniently, reducing the installation time and helping to improve the production efficiency of the whole vehicle. The problem of internal condensation, insulation and short circuit caused by water vapor or water entering the lamp through the power supply wire harness is eliminated.

[0035] Specifically, in the first embodiment, as shown in the figure, Figures 1-2 The lamp can continuously illuminate when the vehicle is in a driving state.

[0036] The lamp of the case is composed of a lamp body and a reset enabler, wherein the lamp body is composed of a light emitter, a control circuit, a sensor, and a reset receiver. When the vehicle is driving, air pressure will act on the surface of the sensor. When the sensor receives external force extrusion deformation, discharge phenomenon will occur at both ends of the sensor sheet, that is, positive piezoelectric effect, and the generated electric energy will be stored in the energy storage module of the control circuit. The energy storage module provides electric energy to the conversion module. The conversion module converts the electric energy stored in the energy storage module and outputs constant current or constant voltage to the light emitter. When the light emitter is a light-emitting diode and a resistance filament, the conversion module outputs constant current. When the light emitter is a xenon-filled ultraviolet-resistant crystal quartz glass tube, the conversion module outputs constant voltage. The light emitter converts electric energy into light energy and emits light. The reset receiver is installed on the vehicle body close to the wheel. The reset enabler itself generates a magnetic field and is installed on the wheel. The reset enabler rotates with the wheel and is used to change the magnetic field acting on the reset receiver.

[0037] When the wheel is rotating, the reset enabler will intermittently approach and move away from the reset receiver. When the reset enabler approaches or moves away from the reset receiver, the magnetic field of the reset enabler will affect the reset receiver. When the reset receiver encounters a constantly changing magnetic field, the reset receiver will form an electric field in a specific direction. When the sensor receives the influence of the electric field in a specific direction, the deformation of the surface of the sensor will disappear due to the inverse piezoelectric effect, and the sensor will return to its original state.

[0038] As above, the sensor completes a process of being extruded by pressure to produce deformation and discharge, and being deformed to disappear under the action of an electric field. During the driving of the vehicle, the sensor is continuously extruded to produce electric energy under the intermittent action of air pressure and an electric field, and continuously restores the original state, continuously and intermittently outputs electric energy to the energy storage module and the conversion module, and finally continuously provides energy to the light emitter, so that the light emitter can continuously emit light. In this case, the faster the vehicle speed, the more electric energy the sensor produces in unit time, and the brighter the light emitter. In this case, the lamp can be continuously used for interior and exterior lighting, and the speed of the vehicle can be prompted.

[0039] The relationship between the electric charge released by the sensor and the vehicle speed is as follows:

[0040]

[0041] Where Q represents the electric charge released by the sensor, d represents the charge sensitivity of the sensor, p represents the air density, A represents the force area, Cd represents the drag coefficient, and V represents the relative speed of the vehicle and the wind.

[0042] The relationship between the electric charge released by the sensor and the light flux of the lamp, and the relative speed of the vehicle and the wind is as follows:

[0043]

[0044] Where Φ represents the light flux, and f represents the conversion coefficient of electric charge and light flux. The factors affecting f include the type of light emitter, the characteristic parameters of the control circuit, the characteristic parameters of the reset receiver, the characteristic parameters of the reset enabler, the distance between the reset receiver and the sensor, the distance between the reset receiver and the reset enabler, etc. According to the formula, it can be known that the greater the relative speed of the vehicle and the wind, the greater the light flux of the light emitter, which can be used for lighting and indirectly prompting the speed of the surrounding pedestrians and vehicles.

[0045] In the second embodiment of the present application, as shown in Figures 3-4 When the vehicle is stationary in a rainy state, the lamp automatically lights up to automatically remind surrounding vehicles and pedestrians.

[0046] The lamp of the present application is composed of a lamp body, which is composed of a light emitter, a control circuit, and a sensor. In a rainy state, when the vehicle is stationary, rain will hit the surface of the sensor. When the sensor receives extrusion deformation by external force of rain, discharge phenomenon will occur at both ends of the sensor sheet, i.e. positive piezoelectric effect, and the electric energy generated will be stored in the energy storage module of the control circuit. The energy storage module provides electric energy to the conversion module. The conversion module converts the electric energy stored in the energy storage module to output constant current or constant voltage to the light emitter, and the light emitter emits light.

[0047] When the external force of rain water applied on the sensor disappears, the sensor automatically restores the shape. When the rain water is applied on the sensor intermittently, the sensor outputs electric energy to the illuminator intermittently, and the illuminator can emit light intermittently. In the scheme, the electric energy provided by the sensor to the illuminator is relatively small, and the illuminator brightness is low.

[0048] The scheme is suitable for reminding surrounding vehicles and pedestrians when the visibility is poor in rainy days, and is used as a signal lamp. The illuminator light flicker brightness is related to the rain speed and raindrop weight, and the illuminator light emission time interval is related to the raindrop falling time interval. The scheme does not need to start the vehicle, and does not need human participation. The lamp can be automatically started and worked according to the raining condition.

[0049] The relationship between the electric charge released by the sensor and the raindrop is as follows:

[0050]

[0051] Wherein, m represents the raindrop mass, A represents the force area, k1 represents the energy conversion coefficient, V represents the relative speed of the raindrop and the vehicle. The larger the raindrop mass and the faster the raindrop speed, the larger the illuminator light flux.

[0052]

[0053] The illuminator light emission time interval calculation formula is as follows:

[0054]

[0055] Wherein represents the illuminator light emission time interval, represents the raindrop falling time interval, k2 represents the electric coefficient of the conversion circuit, and k3 represents the sensor recovery coefficient. When other conditions are unchanged, the shorter the raindrop falling time interval, the shorter the illuminator light emission time interval.

[0056] In summary, in the process of driving the car, the sensor generates electric energy due to deformation, and finally provides the illuminator, so that the illuminator illuminates. Avoid using the storage battery to supply power to the car lamp, and the electric energy of the storage battery is consumed additionally, and the electricity cost is high.

Claims

1. An automotive lamp, the automobile comprising a wheel, characterized in that, The application relates to a vehicle lamp, which comprises the following parts: a lamp body shell, which is located inside a vehicle body and above a wheel, and forms a closed containing space; a reset enabler, which is located outside the lamp body shell and on the wheel, rotates with the wheel, and is used for generating a changing magnetic field; a lamp body, which is located inside the lamp body shell; the lamp body comprises a reset receiver, which is used for receiving the magnetic field generated by the reset enabler and converting the magnetic field into an electric field; the lamp body further comprises a closed loop circuit; the reset receiver is located close to the reset enabler relative to the closed loop circuit; the closed loop circuit comprises a light emitter, a sensor and a control circuit, which are connected in series; the sensor is made of piezoelectric material, has a sheet shape, contains free charges in the inside, is used for converting the free charges into electric energy through deformation, and can restore the shape under the action of an electric field.

2. The vehicle lamp according to claim 1, wherein the control circuit comprises an energy storage module and a conversion module.

3. The vehicle lamp according to claim 2, wherein the energy storage module is used for storing the electric energy generated by the sensor; the conversion module is used for converting the electric energy stored in the energy storage module into an electric current for the light emitter.

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