JP2017033674A - Illumination lamp, illuminating device, and lighting control circuit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a user to recognize a failure position with ease when non-lighting occurs in an illumination lamp, in an illumination lamp comprising a light-emitting diode.SOLUTION: An illumination lamp connectable with a stabilizer and that comprises a light-emitting diode, comprises: a voltage detection unit that detects an output voltage of the stabilizer; a current detection unit that detects a current flowing from the stabilizer; a first detection result output unit that outputs a detection result of the voltage detection unit; and a second detection result output unit that outputs a detection result of the current detection unit. The voltage detection unit includes a voltage-dividing circuit that divides the output voltage of the stabilizer. A voltage divided by the voltage-dividing circuit is applied to the first detection result output unit.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an illumination lamp, an illumination device, and a lighting control circuit.

  In recent years, attention has been focused on illumination lamps using light emitting diodes (LEDs) having features such as low power consumption and long life (hereinafter, sometimes referred to as LED illumination lamps). One of them is an LED lamp that receives the output of a fluorescent lamp inverter ballast, commercial AC power supply, fluorescent lamp glow ballast, or fluorescent lamp rapid ballast, and can be used in place of a conventional fluorescent lamp. .

  By the way, in the illumination device as described above, when the LED illumination lamp fails or the ballast connected to the LED illumination lamp fails, the LED illumination lamp is not lit, but the user of the LED illumination lamp is It cannot be easily recognized whether the LED lighting lamp has failed or the ballast has failed. In order to recognize, for example, a troublesome operation such as mounting a non-lighted LED illumination lamp on a normally lit ballast and confirming lighting is necessary.

  In order to simplify such a determination, a method has been proposed in which a faulty part is specified when the illuminating lamp is not lit with respect to a road illuminating lamp (for example, see Patent Document 1).

  However, the above-described method has a problem that the user cannot easily recognize the failure location when the lighting lamp is not turned on. For example, when an illuminating lamp is short-circuited and an overcurrent flows, the failure of the illuminating lamp cannot be recognized. Therefore, when the above method is applied to LED lighting lamps and ballasts, short-circuit faults in LED lighting lamps cannot be easily recognized.

  In this case, the user mistakenly recognizes that the LED lighting is not broken, and there is a possibility that the LED lighting that is actually broken may be attached to another ballast without knowing that it is broken, It is also conceivable that the ballast will be damaged by overload, leading to secondary damage.

  The present invention has been made in view of the above points, and enables a user to easily recognize a failure location when a lighting failure occurs in an illumination lamp including a light emitting diode. Is an issue.

  The illuminating lamp is an illuminating lamp that includes a light-emitting diode that can be connected to a ballast, and includes a voltage detection unit that detects an output voltage of the ballast, and a current detection unit that detects a current flowing from the ballast. The first detection result output unit that outputs the detection result of the voltage detection unit, and the second detection result output unit that outputs the detection result of the current detection unit, the voltage detection unit, A voltage dividing circuit that divides the output voltage of the ballast is included, and the voltage divided by the voltage dividing circuit is applied to the first detection result output unit.

  According to the disclosed technology, in a illuminating lamp including a light emitting diode, when the illuminating lamp is not turned on, the user can easily recognize the failure location.

It is a perspective view which illustrates the appearance of the illuminating device concerning a 1st embodiment. It is a cross-sectional view which illustrates the illuminating lamp which concerns on 1st Embodiment. It is a figure which illustrates the circuit block of the illuminating lamp which concerns on 1st Embodiment. It is a figure which illustrates the current voltage detection circuit which concerns on 1st Embodiment. It is a figure which illustrates the current voltage detection circuit which concerns on 2nd Embodiment.

  Hereinafter, embodiments for carrying out the invention will be described with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals, and redundant description may be omitted.

<First Embodiment>
FIG. 1 is a perspective view illustrating the appearance of the lighting apparatus according to the first embodiment. Referring to FIG. 1, an illumination device 1 includes an illumination lamp 2 and a lamp 5 on which the illumination lamp 2 is detachably mounted.

  The illuminating lamp 2 includes a translucent part 20 and bases 21 and 22. The translucent portion 20 is made of a resin or glass member that transmits light emitted from a built-in light source (an LED module 27 described later), and is provided at a base 21 provided at one end and at the other end. The cap 22 is sealed. The translucent part 20 can be made into a straight pipe shape, for example.

  The base 21 (first base) includes a pair of convex terminals 211 and 212. Similarly, the base 22 (second base) includes a pair of convex terminals 221 and 222. However, some of the terminals are not shown in FIG. 1 (see FIG. 3 described later). In addition, an electric circuit is provided inside the translucent part 20 (see FIG. 3 described later).

  The lamp 5 includes a fluorescent lamp ballast 50 (see FIG. 3) and a pair of sockets 51 and 52 to which the illumination lamp 2 is detachably mounted, and is configured to be connectable to a commercial AC power source. The frequency of the commercial AC power supply is, for example, 50 Hz or 60 Hz. The electric power from the commercial AC power supply is supplied to the fluorescent lamp ballast 50.

  The fluorescent lamp ballast 50 is, for example, a well-known fluorescent lamp glow ballast, a fluorescent lamp rapid ballast, a fluorescent lamp inverter ballast, or the like. However, as will be described later, the illuminating lamp 2 is configured to be directly connected to a commercial AC power supply, and in this case, the fluorescent lamp stabilizer 50 is not necessary. As described above, the illuminating lamp 2 can be configured to be connectable to any of the fluorescent lamp glow stabilizer, the fluorescent lamp rapid stabilizer, the fluorescent lamp inverter stabilizer, and the commercial AC power supply.

  The socket 51 includes concave terminals 511 and 512. Similarly, the socket 52 includes concave terminals 521 and 522. However, some of the terminals are not shown in FIG. 1 (see FIG. 3 described later).

  The terminals 211 and 212 of the base 21 of the illuminating lamp 2 are inserted into and fitted into the terminals 511 and 512 of the socket 51 of the lamp 5 and are electrically connected. Similarly, the terminals 221 and 222 of the base 22 of the illuminating lamp 2 are inserted into and fitted into the terminals 521 and 522 of the socket 52 of the lamp 5 and are electrically connected.

  FIG. 2 is a cross-sectional view illustrating the illuminating lamp according to the first embodiment. As shown in FIG. 2, in the illuminating lamp 2, a frame 410 is fixed inside the cylindrical light transmitting portion 20. An LED substrate 420 on which the LED module 27 is mounted is detachably attached to one side of the frame 410. Further, a holder 430 is provided on the other side of the frame 410, and a DRV board 440 on which the rectifier circuits 24 and 25 are mounted is detachably mounted on the holder 430.

  The frame 410 and the holder 430 have substantially the same cross-sectional shape in the longitudinal direction, and are configured to be inserted into the translucent part 20 by sliding in the longitudinal direction from the end side of the translucent part 20. Yes. Similarly, the LED board 420 and the DRV board 440 have substantially the same cross-sectional shape in the longitudinal direction, and are inserted into the translucent part 20 by sliding in the longitudinal direction from the end side of the translucent part 20. It is configured to be possible.

  By providing the holder 430 between the LED board 420 and the DRV board 440, the heat of the DRV board 440 becomes difficult to be transmitted to the LED board 420, and the influence of the heat on the LED module 27 becomes substantially uniform for all the LEDs. For this reason, the inconvenience that the lifetime of the LED is partially shortened with the passage of time can be prevented.

  Thus, the shape of the illuminating lamp 2 is similar to a straight tube fluorescent lamp, and can be easily replaced with an existing fluorescent lamp attached to the lamp 5. However, the shape of the illumination lamp 2 may not be similar to the fluorescent lamp. For example, the cross-sectional shape of the light transmitting portion 20 may be a semi-cylindrical shape instead of a cylindrical shape.

  FIG. 3 is a diagram illustrating a circuit block of the illuminating lamp according to the first embodiment. Referring to FIG. 3, the illuminating lamp 2 includes bases 21 and 22, rectifier circuits 24 and 25, an LED module 27, and a current / voltage detection circuit 30 as main parts. The illuminating lamp 2 can be appropriately provided with other circuits as necessary. Examples of other circuits include a filter circuit for EMI countermeasures and a drive circuit.

  The rectifier circuits 24 and 25 are circuits that rectify the AC voltage input from the caps 21 and 22. The rectifier circuits 24 and 25 are, for example, bridge-type full-wave rectifier circuits configured using a so-called fast recovery diode or the like having a short reverse recovery time. The rectified voltage rectified by the rectifying circuits 24 and 25 is output to the positive side wiring 41 and the negative side wiring 42 and supplied to the LED module 27.

  The LED module 27 includes a plurality of series connection portions (six light emitting diodes 271 connected in series in FIG. 3) in which a plurality of light emitting diodes 271 are connected in series between the positive side wiring 41 and the negative side wiring 42. Have. Each series connection portion is connected in parallel in a plurality of rows. When the voltage between the positive side wiring 41 and the negative side wiring 42 exceeds the sum of the forward voltages of the plurality of light emitting diodes 271 constituting the series connection portion, a current flows through each light emitting diode 271 to emit light.

  A drive circuit may be inserted between the rectifier circuits 24 and 25 and the LED module 27. The drive circuit is a circuit that drives the LED module 27, and can include, for example, a step-up / down circuit, a constant current circuit, or the like. By providing the drive circuit, even if the voltage supplied from the rectifier circuits 24 and 25 fluctuates, it is possible to supply an appropriate current that does not exceed the rating to the LED module 27, thereby preventing the failure of the LED module 27. Power saving can be realized.

  The illuminating lamp 2 can be connected to any of the fluorescent lamp glow stabilizer, the fluorescent lamp rapid stabilizer, the fluorescent lamp inverter stabilizer, and the commercial AC power supply unit, but the circuit to be used is selected depending on the connection target. It is configured to be possible.

  FIG. 4 is a diagram illustrating the current-voltage detection circuit according to the first embodiment. Referring to FIG. 4, the current / voltage detection circuit 30 includes a voltage detection unit 31, a current detection unit 32, a first detection result output unit D33, and a second detection result output unit D34. Have. The current / voltage detection circuit 30 is provided in front of the rectifier circuits 24 and 25 and constitutes a part of the lighting control circuit together with the rectifier circuits 24 and 25.

  The voltage detector 31 has a function of detecting the output voltage of the fluorescent lamp stabilizer 50, and the current detector 32 has a function of detecting the current flowing from the fluorescent lamp stabilizer 50. Further, D33 as the first detection result output unit has a function of outputting the detection result of the voltage detection unit 31, and D34 as the second detection result output unit has a function of outputting the detection result of the current detection unit 32. Have In addition, D33 and D34 are arrange | positioned in the position which can be visually recognized from the exterior of the illuminating lamp 2. FIG.

  The voltage detector 31 is inserted between one of the two terminals of the base 21 and one of the two terminals of the base 22. The illuminating lamp 2 can be connected to various power supply units, but when the power supply unit is a fluorescent light glow ballast, a fluorescent light rapid ballast, or a fluorescent light inverter ballast, it has a 4-wire output. Voltage is output from both the two terminals of the base 21 and the two terminals of the base 22.

  On the other hand, when the power supply unit is a commercial AC power source (when directly connected to the commercial AC power source), it has a two-wire output, and either one of the two terminals of the base 21 and the base 22 Any one of the two terminals is designated as an input terminal. Therefore, the voltage detection unit 31 is inserted between the input terminals specified when directly connected to the commercial AC power supply. Thereby, even if the illuminating lamp 2 is connected to any power supply unit, the voltage detection unit 31 can function.

  In the present embodiment, as an example, the voltage detector 31 is inserted between the terminal 211 of the base 21 and the terminal 222 of the base 22. That is, in the present embodiment, the input terminals specified when directly connected to the commercial AC power supply are the terminal 211 of the base 21 and the terminal 222 of the base 22.

  In the voltage detector 31, D311 (diode), R311 (resistance), and R312 (resistance) are connected in series between the terminal 211 of the base 21 and the terminal 222 of the base 22. These constitute a voltage dividing circuit, and a voltage corresponding to the voltage dividing ratio of R311 and R312 is generated at the connection between R311 and R312.

  C311 (capacitor) is connected in parallel to R312 to stabilize (smooth) the voltage at the connection between R311 and R312. The voltage at the connection portion between R311 and R312 stabilized by C311 is input to D33 (light emitting element such as a light emitting diode) which is a first detection result output portion via R313 (resistance). If a voltage of a predetermined value or more is generated at the connection portion between R311 and R312, a current flows through D33 via R313, and D33 is lit.

  The current detection unit 32 is inserted into any one of the two terminals of the base 21 or any one of the two terminals of the base 22. These are lines connected to input terminals designated when directly connected to a commercial AC power supply.

  As described above, in the present embodiment, the input terminals specified when directly connected to the commercial AC power source are the terminal 211 of the base 21 and the terminal 222 of the base 22. Therefore, as an example, the current detection unit 32 is inserted in a line between the terminal 211 of the base 21 and the rectifier circuit 24. However, the current detection unit 32 may be inserted in a line between the terminal 222 of the base 22 and the rectifier circuit 25.

  More specifically, in the current detector 32, the primary coil of L321 (coil) is inserted in a line between the terminal 211 of the base 21 and the rectifier circuit 24. Between the one end and the other end of the secondary coil of L321, D321 (diode), R321 (resistor), and D34 (light emitting element such as a light emitting diode) which is the second detection result output unit are connected in series. It is connected to the.

  When a current flows through the primary coil of L321, a voltage corresponding to the winding ratio between the primary coil and the secondary coil of L321 is generated in the secondary coil. Due to the voltage generated in the secondary coil of L321, a current flows through D34 via D321 and R321, and D34 is lit. In addition, when D34 blinks, it can be made to light continuously by connecting a capacitor | condenser to D34 in parallel.

  Next, it will be described when D33 and D34 are turned on and when they are turned off.

  First, as case 1, consider a case where the fluorescent lamp ballast 50 is operating normally and the illumination lamp 2 is operating normally. In this case, since a normal voltage is applied from the fluorescent light ballast 50 to the illuminating lamp 2, the voltage is detected by the voltage detection unit 31, and a current flows to D33 which is the first detection result output unit, so that D33 is turned on. To do. Further, the current is detected by the current detection unit 32, the current flows through D34 which is the second detection result output unit, and D34 is turned on.

  In other words, by visually recognizing that both D33 and D34 are lit, it is possible to recognize that both the fluorescent light ballast 50 and the illuminating lamp 2 are operating normally without performing special analysis. .

  Next, as case 2, consider a case where the fluorescent lamp ballast 50 is operating normally and the illumination lamp 2 is disconnected and not operating normally. In this case, even if the illuminating lamp 2 is disconnected, a normal voltage is applied from the fluorescent ball stabilizer 50 to the illuminating lamp 2, so that the voltage is detected by the voltage detection unit 31, and the first detection result output unit A current flows through a certain D33, and D33 lights up. However, since no current flows through the primary coil of L321, no current is detected by the current detection unit 32, and D34 is turned off because no current flows through D34 which is the second detection result output unit.

  In other words, by visually recognizing that D33 is turned on and D34 is turned off, the fluorescent ballast 50 is operating normally without special analysis, and the illuminating lamp 2 is disconnected. Can be recognized.

  Next, as a case 3, consider a case where the fluorescent lamp ballast 50 is operating normally and the illumination lamp 2 is short-circuited and not operating normally. In this case, since the illuminating lamp 2 is short-circuited, even if a normal voltage is applied from the fluorescent lamp stabilizer 50 to the illuminating lamp 2, an overcurrent flows through the illuminating lamp 2 and the voltage from the fluorescent lamp stabilizer 50 is increased. Drop from 0 to several [V].

  Here, if the voltage dividing ratio of R311 and R312 is appropriately set so that no current flows through D33 when the voltage from the fluorescent lamp ballast 50 drops to about 0 to several [V], the voltage detector 31 is set. Thus, no voltage is detected, and D33, which is the first detection result output unit, is turned off. On the other hand, since a short-circuit current (overcurrent) flows through the primary coil of L321, the current is detected by the current detection unit 32, the current flows through D34 that is the second detection result output unit, and D34 is lit.

  In other words, by visually recognizing that D33 is turned off and D34 is turned on, the fluorescent lamp ballast 50 is operating normally without performing any special analysis, and the illuminating lamp 2 is short-circuited. Can be recognized.

  Next, as a case 4, a case where a voltage is not applied from the fluorescent lamp stabilizer 50 to the illumination lamp 2 due to an abnormality of the fluorescent lamp stabilizer 50 will be considered. In this case, no voltage is detected by the voltage detection unit 31, and D33 is turned off because no current flows through D33 which is the first detection result output unit. Further, no current is detected by the current detection unit 32, and no current flows through D34 which is the second detection result output unit, so D34 is turned off.

  In other words, by visually recognizing that both D33 and D34 are extinguished, it is possible to recognize that the fluorescent lamp ballast 50 is not operating normally without performing a special analysis. In this case, it cannot be determined whether or not the illumination lamp 2 is normal. Table 1 summarizes the recognition results of Case 1 to Case 4 described above.

このように、電圧検知部３１、電流検知部３２、第１の検知結果出力部であるＤ３３、第２の検知結果出力部であるＤ３４を有する電流電圧検出回路３０を照明灯２に設ける。これにより、Ｄ３３及びＤ３４の点灯／消灯の組み合わせを視認することにより、特別な解析を行わなくても、蛍光灯安定器５０や照明灯２の正常／異常を認識できる。すなわち、照明灯２の使用者が、容易に故障箇所（故障したのが蛍光灯安定器５０か照明灯２か）を認識できるようになる。

Thus, the current / voltage detection circuit 30 having the voltage detection unit 31, the current detection unit 32, the first detection result output unit D33, and the second detection result output unit D34 is provided in the illuminating lamp 2. Accordingly, by visually recognizing the combination of lighting / extinguishing of D33 and D34, it is possible to recognize the normality / abnormality of the fluorescent light ballast 50 and the illumination lamp 2 without performing a special analysis. That is, the user of the illumination lamp 2 can easily recognize the failure location (whether the failure is the fluorescent light stabilizer 50 or the illumination lamp 2).

  In particular, even when no voltage is generated at the output part of the fluorescent lamp ballast 50, such as a short circuit of the lighting lamp 2 (when it drops), the current flowing through the lighting lamp 2 can be confirmed, so that an overcurrent failure can be detected without omission. it can. As a result, when a malfunctioning lamp is mounted on a normal lamp and the operation is confirmed as in the prior art, it is possible to eliminate the case where the fluorescent lamp ballast is overloaded and causes secondary damage. .

<Second Embodiment>
In the second embodiment, an example in which a sounding body is used instead of the light emitting element as the detection result output unit will be described. In the second embodiment, description of the same components as those of the already described embodiments may be omitted.

  FIG. 5 is a diagram illustrating a current-voltage detection circuit according to the second embodiment. Referring to FIG. 5, in the current-voltage detection circuit 30A, the first detection result output unit is replaced by D33 to B37 (sounding body such as a buzzer), and the second detection result output unit is D34 to B38 (buzzer or the like). Is different from the current-voltage detection circuit 30 (see FIG. 4).

  That is, in the current-voltage detection circuit 30A, B37 emits sound when D33 is lit in the current-voltage detection circuit 30, and B38 emits sound when D34 is lit in the current-voltage detection circuit 30. By arranging B37 and B38 at a suitable distance, it is possible to easily hear whether one of them is sounding or both are sounding.

  Accordingly, by listening to the combination of the presence or absence of sound from B37 and B38, it is possible to recognize the normality / abnormality of the fluorescent lamp ballast 50 and the illumination lamp 2 without performing a special analysis. That is, the user of the illumination lamp 2 can easily recognize the failure location (whether the failure is the fluorescent light stabilizer 50 or the illumination lamp 2).

  Similarly to the first embodiment, even when no voltage is generated (dropped) at the output of the fluorescent lamp ballast 50, such as a short circuit of the lamp 2, the current flowing through the lamp 2 can be confirmed. Therefore, overcurrent failure can be detected without omission. As a result, when a malfunctioning lamp is mounted on a normal lamp and the operation is confirmed as in the prior art, it is possible to eliminate the case where the fluorescent lamp ballast is overloaded and causes secondary damage. .

  The first detection result output unit and the second detection result output unit may output the detection result by light using a light emitting element such as a light emitting diode, or by sound using a sounding body such as a buzzer. It may be output or other. Other examples include a method of outputting the detection result to the outside of the illumination lamp 2 wirelessly. In this case, the detection result can be received externally, the lamp can be turned on, a sound can be produced, and failure information can be displayed on the display.

  The first detection result output unit and the second detection result output unit may be different from each other. For example, the first detection result output unit may output the detection result as light using a light emitting element such as a light emitting diode, and the second detection result output unit may output the sound as sound using a sounding body such as a buzzer. .

  The preferred embodiment has been described in detail above. However, the present invention is not limited to the above-described embodiment, and various modifications and replacements are made to the above-described embodiment without departing from the scope described in the claims. Can be added.

  For example, in the above-described embodiment, as an example of an illumination lamp, a lamp that can be connected to any one of the power supply units of a fluorescent lamp glow stabilizer, a fluorescent lamp rapid stabilizer, a fluorescent lamp inverter stabilizer, and a commercial AC power supply is shown. However, the present invention can be applied to an illuminating lamp including an input unit that can be connected to any one of the power supply units.

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Illuminating lamp 5 Lamp 20 Light transmitting part 21, 22 Base 24, 25 Rectifier circuit 27 LED module 30, 30A Current voltage detection circuit 31 Voltage detection part 32 Current detection part 41 Positive side wiring 42 Negative side wiring 50 Fluorescent light Ballast 51, 52 Socket 211, 212, 221, 222, 511, 512, 521, 522 Terminal 271 Light emitting diode 410 Frame 420 LED substrate 430 Holder 440 DRV substrate B37, B38 Sound generator D33, D34 Light emitting element C311 Capacitors D311, D321 Diode L321 Coil R311, 312, 313, 321 Resistance

JP 2010-135257 A

Claims (6)

An illumination lamp with a light-emitting diode that can be connected to a ballast,
A voltage detector for detecting the output voltage of the ballast;
A current detector for detecting the current flowing from the ballast;
A first detection result output unit for outputting a detection result of the voltage detection unit;
A second detection result output unit that outputs a detection result of the current detection unit,
The voltage detector includes a voltage dividing circuit that divides the output voltage of the ballast,
The voltage divided by the voltage dividing circuit is applied to the first detection result output unit. The current detection unit includes a primary coil and a secondary coil,
The primary coil is inserted in series with a wire to which the output voltage of the ballast is applied,
The secondary coil generates a voltage based on the current flowing through the primary coil,
The illuminating lamp according to claim 1, wherein the voltage generated by the secondary coil is applied to the second detection result output unit.   The illuminating lamp according to claim 1 or 2, wherein the first detection result output unit is a first light emitting element, and the second detection result output unit is a second light emitting element. Rectifying the AC voltage output from the ballast, and having a rectifier circuit that supplies the rectified voltage to the light emitting diode,
The illuminating lamp according to any one of claims 1 to 3, wherein the voltage detection unit and the current detection unit are provided upstream of the rectifier circuit. The illumination lamp according to any one of claims 1 to 4,
And a lamp for mounting the illumination lamp. A lighting control circuit that can be connected to a ballast and is used for an illumination lamp having a light emitting diode,
A voltage detector for detecting the output voltage of the ballast;
A current detector for detecting the current flowing from the ballast;
A first detection result output unit for outputting a detection result of the voltage detection unit;
A second detection result output unit that outputs a detection result of the current detection unit,
The voltage detector includes a voltage dividing circuit that divides the output voltage of the ballast,
The lighting control circuit, wherein the voltage divided by the voltage dividing circuit is applied to the first detection result output unit.

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