JP3127211U - Voltage compensation device for vehicle power generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a stable operation of an internal combustion engine while permitting continuous full operation of a car navigation device or the like by compensating for a decrease in the output voltage of a power generation device during idling of the internal combustion engine.
A plug main body 1 is detachably attached to a cigar socket 12 mounted on a vehicle, and positive and negative electrodes 3 and 4 connected to a power generation device 10 are provided on the plug main body 1, and positive and negative electrodes on the plug main body 1 side are provided. A capacitor 5 that compensates for the voltage generated by the power generation device 10 is connected between them, and a light emitting diode 6 is connected to the capacitor 5 in parallel.
[Selection] Figure 2

Description

  The present invention relates to a voltage compensator for a vehicular power generating device used to compensate for a decrease in the generated voltage when various loads are connected to the vehicular power generating device.

  A vehicle such as a passenger car includes a power generation device driven by an internal combustion engine, a rectification device that rectifies power generated by the power generation device into direct current, and a battery that charges the generated direct current power. During operation, the battery is always charged, and a rectified output of power generated by the generator or power discharged from the battery is supplied to the load (see, for example, Patent Document 1).

  By the way, in recent years, in vehicles, devices such as car navigation devices, audio / video devices, and various mobile devices have been added or connected in addition to conventional electrical components. In conventional 12-volt batteries and 14-volt power generators, shortage of power is inevitable due to the limit of usable energy.

For example, when waiting for a signal during night driving, the car navigation device, the audio / video device, etc. are in full operation even though the internal combustion engine is idling.
As a result, the ignition circuit of the internal combustion engine cannot obtain the desired ignition energy sufficiently, avoiding a decrease in acceleration performance when the vehicle starts and an increase in harmful substances in the exhaust gas due to incomplete combustion of the air-fuel mixture in the combustion chamber. There was the inconvenience of not getting.
In addition, such a decrease in the generated voltage of the power generation apparatus is often seen in used vehicles that have passed three years or more. In used vehicles, the voltage drop of the generated voltage is seen due to the deterioration of the performance of each part of the circuit in addition to the deterioration of the power generation device itself over time.

On the other hand, a battery with a high generated voltage (which generates a high voltage) is mounted on the vehicle, and the generated voltage of the power generator that charges the battery is set to a high value accordingly, thereby supplying the load to the load. There has been considered a method for realizing sufficient voltage supply from a power generation device to a load, stable operation of an internal combustion engine, and smooth start-up of a vehicle while suppressing current, that is, suppressing power loss.
JP 2004-239115 A

However, if the battery voltage is set high to improve the function of the power generator and the fuel consumption is improved, and the generated voltage of the power generator is set high, a large design change of the entire electrical system of the system is forced, which is not realistic. was there.
The present invention has been made paying attention to the conventional problems as described above, and the voltage of the power generation device at the time of idling of the internal combustion engine, etc. can be simply installed by the driver or the occupant in the cigar socket near the dashboard. It is an object of the present invention to obtain a voltage compensation device for a vehicle power generation device that compensates for a decrease and can realize stable operation of an internal combustion engine while allowing continuous full operation of a car navigation device or the like.

  To achieve the above object, a voltage compensation device for a vehicle power generation device according to the present invention is provided with a plug body that is detachably attached to a cigar socket mounted on a vehicle, and is provided on the plug body and driven by an internal combustion engine. A positive and negative electrode connected to the power generation device via a positive and negative terminal in the cigar socket, a capacitor connected between the positive and negative electrodes on the plug body side and compensating for the voltage generated by the power generation device, And a light emitting diode connected in parallel to the capacitor.

  With this configuration, when the plug body is inserted into the cigar socket, the power generation device outputs via the rectifier even when the load of the car navigation device or the like is in full operation and the internal combustion engine is idling. By compensating the voltage with the discharge voltage of the capacitor that has been charged so far, it is possible to maintain the stable operation of the ignition circuit of the internal combustion engine, smooth the combustion of the air-fuel mixture, A smooth start of the vehicle can be realized while suppressing harmful substances.

The voltage compensation device for a vehicle power generation device according to the present invention is characterized in that a protective resistor is connected in series to the light emitting diode.
With this configuration, damage to the light emitting diode due to overcurrent can be avoided in advance.

Further, in the voltage compensation device for a vehicle power generation device according to the present invention, the plug body can be slidably rotated with respect to the cigar socket, or the direction of the part including the light emitting diode of the plug body can be changed. A light irradiation direction generated by the light emitting diode can be selected by a rotation operation or a direction change operation.
With this configuration, the effect of preventing light mischief and theft by the light of the diode can be obtained, the atmosphere in the passenger compartment can be improved, and the luxury of the vehicle occupant can be enhanced, especially for car enthusiasts. You can entertain the atmosphere.

According to the present invention, a sufficient charge (electric power) is stored in the capacitor provided on the plug body side during steady operation or high-speed operation of the internal combustion engine and the power generation device, so that the car navigation device and other electrical components are operated. The voltage drop of the power generator that is reduced by the above can be compensated by the discharge power of the capacitor. For this reason, it is possible to achieve stable driving of the internal combustion engine and smooth start and acceleration of the vehicle, and incomplete combustion of the air-fuel mixture in the combustion chamber, in spite of a decrease in power generation performance due to deterioration of the power generation device over time, etc. It is possible to effectively avoid an increase in harmful substances in the exhaust gas and further a deterioration in fuel consumption.
In addition, according to the present invention, it is possible to prevent mischief and theft of the vehicle body by others at night by turning on the light emitting diode. In addition, it can be used for simple reading and writing by turning on the light-emitting diodes at night, creating an atmosphere of mood lamp lighting in the passenger compartment, enhancing the sense of luxury, and making the driver and passengers comfortable And the ride comfort can be made comfortable.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing a voltage compensator for a vehicle power generator according to an embodiment of the present invention, FIG. 2 is an electric circuit diagram of the vehicle power generator including the voltage compensator, and FIG. 3 is the voltage compensator. It is a perspective view which shows the use condition of.
In FIG. 1 to FIG. 3, the voltage compensation device A of the vehicle power generation device in this embodiment is composed of a plug body 1 integrally having a plug member 2.

  The plug body 1 is a member that accommodates a capacitor 5 and a light-emitting diode 6 that will be described later that compensate for the voltage generated by the power generation device. Further, the plug body 1 is made of a box-shaped material made of a material having strength and hardness capable of protecting the stored capacitor 5 and the like without being easily damaged even if it is picked, gripped or dropped on the floor. Is formed. The shape of the plug body 1 is not particularly limited, such as a cylindrical shape or a rectangular shape, but in this example, an elliptical cylindrical shape is shown. Since the plug body 1 is also a part to be picked by hand when the plug member 2 is mounted on the cigar socket 12 of the vehicle, it is desirable that the plug body 1 has a shape and size corresponding to it.

  On the other hand, the plug member 2 is provided with positive and negative electrodes 3, 4 connected to a power generation device 10 described later via positive and negative terminals 8, 9 of the cigar socket 12. The plug member 2 has a shape and a size that can be attached to and detached from the cigar socket 12 provided near the dashboard 11 of the automobile as shown in FIG. The plug member 2 exposes the electrodes 3 and 4 at the center and outer periphery of the end surface of the plug-in end (mounting end).

  Among these electrodes 3 and 4, the electrode 4 is made of a wire spring, a plate spring, or the like, and is provided at two locations facing the diameter direction of the outer periphery of the insertion end. Accordingly, when the distal end portion of the plug member 2 is inserted into the cigar socket 12 as shown in FIG. 3, the plug body 1 is not freely pulled out by the elastic force (compression and expansion action) of the spring. The cigar socket 12 is held stably.

The plug body 1 houses the capacitor (for example, electrolytic capacitor) 5 electrically connected to the electrodes 3 and 4 of the plug member 2. Further, a light emitting diode 6 that is lit when the plug member 2 is securely attached to the cigar socket 12 is attached to the tip of the plug body 1.
As the light emitting diode 6, for example, a light emitting diode having a light emitting color such as green, red, or white can be used.

  Further, as in the electric circuit shown in FIG. 2, the electrodes 3 and 4 protruding from the insertion end of the plug member 2 accumulate electric power (charge) generated by the power generation device during operation of the internal combustion engine. A positive terminal and a negative terminal of the capacitor 5 are connected to each other. In this embodiment, the capacitor 5 functions so as to discharge when the rotational speed of the internal combustion engine decreases, and maintain the generated voltage of the reduced power generation apparatus 10 at a steady value of 12 to 14 volts. The light emitting diode 6 is connected in parallel to the capacitor 5 via a protective resistor 7.

  Further, positive and negative terminals 8 and 9 are respectively provided in the cigar socket 12 into which the plug member 2 is inserted, and these positive and negative terminals 8 and 9 are connected to positive and negative terminals of the power generation apparatus 10, respectively. The power generation device 10 houses an alternator that generates a three-phase AC voltage, a rectifier that rectifies the three-phase AC voltage, a regulator that controls the rectified voltage to a constant value, and the like. Further, a battery 11 is connected to the power generation device 10 as is well known, and an electrical component including a car navigation device and the like is connected in parallel as a load 13 to the battery 11.

  In the electric circuit, the capacitor 5 can be an electrolytic capacitor having a large charge capacity. This electrolytic capacitor has a structure in which an oxide film is formed on the surface of aluminum or the like by electrolytic oxidation, this is used as a dielectric, and a counter electrode is provided on the surface and wound, and impregnated with a paste-like electrolyte. A large charge capacity is obtained.

  Therefore, by using the capacitor 5 in the voltage compensator A of the present embodiment, for example, the internal combustion engine is in an idling state while waiting for a signal for night driving, and the electrical component is in full operation. Even when the generated voltage decreases, the voltage decrease can be compensated by the discharge voltage of the capacitor 5. As a result, the terminal voltage of the power generator is maintained at a predetermined voltage stably.

Further, the resistor 7 functions to prevent the light emitting diode 6 from being broken due to an overcurrent or surge current flowing into the light emitting diode 6 during an overload. For this reason, the light emitting diode 6 can be stably operated within a predetermined current standard.
There may be a case where a short circuit accident or the like occurs in the circuit including the capacitor 5 and the light emitting diode 6 for some reason. For this reason, it is desirable to provide a fuse in the circuit between the electrodes 3 and 4 in order to prevent a short-circuit current from flowing through the electronic component on the vehicle side and damaging or fusing it.

  Next, the operation will be described. In the voltage compensation device A of the vehicle power generation device, the plug body 1 is picked with a finger, and the insertion end of the plug member 2 is inserted into the cigar socket 12. This insertion state is shown in FIG. This insertion state is stably maintained by the elastic force of the electrode 4 and the electrodes 3 and 4 are electrically connected to the positive and negative terminals 8 and 9 in the cigar socket 12. The positive and negative terminals 8 and 9 are connected to the positive terminal and the negative terminal of the battery 11 mounted on the vehicle, and are supplied with, for example, DC 12 volts.

  For this reason, the voltage applied to each electrode 3 and 4 is supplied to the capacitor 5 and the light emitting diode 6, charging of the capacitor 5 is started, and the light emitting diode 6 starts to light up instantaneously. The capacitor 5 starts to be charged gradually according to the time constant of the resistor 7 and the capacitor 5, and when the set voltage is reached, the potential of the capacitor 5 is kept stable until discharge occurs. This potential is a value close to the battery voltage, and is electrically connected to the battery 11 in terms of electrical circuit.

  Therefore, even when the load 13 including the car navigation device or the like (electrical component) is in full operation and the internal combustion engine is idling, the power load on the power generation device 10, that is, the decrease in the generated voltage of the power generation device 10 is reduced. Is compensated by the discharge voltage of the capacitor 5 mounted on the plug body 1 side. For this reason, even when the electrical component as the load 13 is in full operation, stable operation of the ignition circuit of the internal combustion engine is maintained, combustion of the air-fuel mixture is facilitated, and harmful substances in the exhaust gas are suppressed, while the vehicle Smooth start is possible.

Tables 1 and 2 show the fuel consumption test results. The test was performed in the case where the device of the present invention was mounted and in a normal state where the device of the present invention was not mounted as a comparative example.
The test conditions are as follows.
(1) Test date Table 1: June 30, 2006
Table 2: July 6-7, 2006 (2) Test location Table 1: General road in Patriotic country, Obihiro City, Hokkaido
Table 2: Hokkaido Sapporo-Obihiro road (3) Vehicles used Kei (Suzuki)
Displacement 660L
(4) Measuring instrument Ono Sokki
Volumetric flow rate detector EP-2240HA
(5) Measurement method Obihiro University of Agriculture
Calculated based on measurement standards

According to the test results in Table 1, the average fuel consumption is 12.56 km / L in the comparative example in the normal state, but the average fuel consumption is 13.89 km / L when the present invention is installed, which is about 10.5%. In addition, according to the test results shown in Table 2, the average fuel consumption was 14.96 km / L in the comparative example in the normal state, but the average of 16.94 km when the device of the present invention was installed. / L, an improvement of about 10.2% in fuel efficiency was observed, and it was confirmed that the effect was high in terms of fuel efficiency.
In addition, in the exhaust gas measurement, according to the measurement data at HKS Hokkaido Service Co., Ltd. (model used: 2002 Toyota Corolla Ranks 1500cc), approximately 50 to 54% of HC (hydrocarbon) is installed when the product of the present invention is installed. Decrease has been confirmed.
In addition, in the power (ps) measurement by chassis dynamo with the 2002 Toyota Corolla Ranks 1500cc, Max Power in the low / medium speed range is 82.8ps before installation, but after installing this product Indicates 84.4 ps, an improvement of 1.6 ps, and Max Power in the high-speed range is 112.8 ps before installation, whereas 114.0 ps after installation of the present invention product, 1.2 ps It has been confirmed that power is improved.

  Further, since the voltage compensator A can be attached by a simple operation of mounting the plug member 2 of the plug body 1 to the cigar socket 12, the bonnet is opened as in the conventional case, and troublesome wiring work by jig operation is performed. It becomes unnecessary, and anyone, especially women and elderly drivers, can easily enjoy the voltage compensation effect of the power generation apparatus 10 by the battery 5 as described above.

Further, as shown in FIG. 3, the light of the light emitting diode 6 is irradiated to the outside at the tip of the plug body 1, and an ashtray or the like disposed in the vicinity at night by turning on the light emitting diode 6. Can be illuminated. When the light-emitting diode 6 is disposed in the plug body 1, at least a portion of the housing of the plug body 1 corresponding to the position of the light-emitting diode 6 is formed of a transparent or translucent material. When the light emitting diode 6 is provided so as to be exposed on the outer peripheral surface side of the plug body 1, the columnar plug body 1 rotates and slides in the circumferential direction in the cylindrical cigar socket 12. Therefore, the direction of light irradiation by the light emitting diode 6 can be arbitrarily adjusted (selected). Further, the direction of the light emitting diode 6 portion may be changed by turning the plug main body 1 including the light emitting diode 6 so that the portion of the plug main body 1 can be rotated and the angle can be changed vertically and horizontally. In this case, when the portion of the light emitting diode 6 is exposed to the outside, the direction of the exposed portion may be changeable.
As this configuration, the portion including the light emitting diode 6 of the plug body 1 is configured such that the distal end side thereof is rotatable with respect to the proximal end side (the side attached to the cigar socket 12) of the plug body 1, or the light emitting diode 6 portion. Can be made flexible with respect to the plug body 1 or connected with a universal joint.

For this reason, in the type of vehicle in which the cigar socket 12 is energized even when the internal combustion engine is stopped, that is, when the vehicle is parked, the light-emitting diode 6 is turned on at night, which causes a warning or monitoring of others approaching the vehicle. Therefore, it is possible to prevent the mischief and theft of the vehicle by others.
In addition, the light-emitting diodes can be used for simple reading and writing, creating an atmosphere of mood lamp lighting in the passenger compartment, enhancing the sense of luxury, and making the driver and passengers comfortable. And the ride comfort can be made comfortable.

  As described above, in the present embodiment, the plug body 1 is detachably attached to the cigar socket 12 mounted on the vehicle, and the plug body 1 is provided with the positive and negative electrodes 3 and 4 connected to the power generation device 10. A capacitor 5 that compensates the voltage generated by the power generation device 10 is connected between the positive and negative electrodes 3 and 4 on the main body 1 side, and the light emitting diode 6 is connected in parallel to the capacitor 5, whereby the plug main body 1 is connected to the cigar socket 12. If the load of the car navigation device or the like is in full operation and the internal combustion engine is idling, the voltage drop of the power generation device 10 is mounted on the plug body 1 side. Can be compensated by the discharge voltage of the capacitor 5 that has been charged to a stable level, so that the stable operation of the ignition circuit of the internal combustion engine is maintained, the combustion of the air-fuel mixture is facilitated, and While suppressing substance, it can realize a smooth start of the vehicle.

  The voltage compensator according to the present invention is designed to compensate for the decrease in the output voltage of the power generator during idling of the internal combustion engine by the discharge voltage of the capacitor, just by the driver or the occupant being attached to the cigar socket. Vehicle used to compensate for voltage drop when various loads are connected to a power generation device, which has the effect of enabling stable driving while allowing continuous full operation of a car navigation device or the like. This is useful for a voltage compensation device of a power generator for an automobile.

It is a perspective view which shows the voltage compensation apparatus structure of the generator device for vehicles by embodiment of this invention. It is a circuit diagram of the voltage compensation apparatus shown in FIG. It is explanatory drawing which shows the usage example of the voltage compensation apparatus shown in FIG.

Explanation of symbols

A Voltage compensation device 1 Plug body 2 Plug member 3, 4 Electrode 5 Capacitor 6 Light emitting diode 7 Resistance 8, 9 Terminal 10 Power generation device 11 Battery 12 Cigar socket 13 Load

Claims (3)

A plug body detachably attached to a cigar socket mounted on the vehicle;
A positive and negative electrode provided on the plug body and connected to a power generator driven by an internal combustion engine via a positive and negative terminal in a cigar socket;
A capacitor connected between the positive and negative electrodes on the plug body side to compensate for the voltage drop generated by the power generation device;
A light emitting diode connected in parallel to the capacitor;
A voltage compensation device for a vehicular power generator.   The voltage compensation device for a vehicle power generation device according to claim 1, wherein a protective resistor is connected in series to the light emitting diode.   The plug body can slide and rotate with respect to the cigar socket, or the direction of the plug body including the light emitting diode can be changed, and the light emitting diode is generated by the sliding rotation operation or the direction changing operation. The voltage compensation device for a vehicle power generation device according to claim 1, wherein an irradiation direction of light to be selected is selectable.

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