JP2019145430A - Construction method for led lamp exchange construction - Google Patents

Abstract

To facilitate the construction for exchanging a fluorescent lamp into an LED lamp with respect to a fluorescent lamp lighting apparatus including an existent fluorescent lamp lighting circuit.SOLUTION: A construction method for LED lamp exchange construction includes the steps of: connecting an LED lighting circuit 4 to at least two of four terminal parts 21-24 of a socket 2; separating a portion of a fluorescent lamp lighting circuit connected between a power supply terminal 7 to which a commercial power source 8 is connected, and at least two of the four terminals of the socket 2; and attaching an LED lamp 3 including four terminals to the socket 2. The LED lamp 3 includes: a first diode bridge connected to two terminals; a second diode bridge connected to the other two terminals; and an LED element connected between output terminals of a plus pole and a minus pole of the first diode bridge and the second diode bridge.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a construction method for LED lamp replacement work in which an LED lamp is mounted instead of a fluorescent lamp in a fluorescent lamp.

  In recent years, lighting fixtures using LED (Light Emitting Diode) elements have been widely used. In connection with this, the construction which replaces the fluorescent lamp of the existing lighting fixture for fluorescent lamps with an LED lamp is performed. For example, in Japanese Unexamined Patent Publication No. 2012-074298 (Patent Document 1), in a glow starter type fluorescent lamp apparatus, an existing straight tube fluorescent lamp is internally short-circuited at one end and internally short-circuited at the other end. An exchange method is disclosed in which an LED fluorescent lamp having a short-circuit side base is replaced, and an existing glow tube is replaced with an LED lighting tube.

JP2012-074298A

  The replacement method described in Patent Document 1 is intended to allow even a general consumer to easily replace, and is based on the assumption that no work is required to remodel the appliance. Therefore, the exchange method described in Patent Document 1 cannot be applied to an instrument that does not have a glow tube. Also in this replacement method, it is necessary to replace an existing glow tube with an LED lighting tube.

  The present invention provides an LED replacement construction method that can facilitate construction for exchanging a fluorescent lamp with an LED lamp for a fluorescent lamp luminaire including an existing fluorescent lamp lighting circuit. For the purpose.

  A construction method according to one aspect of the present invention is a construction method for LED lamp replacement work in which an LED lamp is attached instead of a fluorescent lamp in a fluorescent lamp apparatus. The fluorescent lamp fixture includes a socket including four terminal portions to which the four terminals of the fluorescent lamp are attached, and a fluorescent lamp lighting circuit electrically connected to at least two of the four terminal portions of the socket. And a power supply terminal to which an external commercial power supply is connected. In the construction method, AC / DC is supplied by converting AC power supplied from the commercial power source into direct current between at least two of the four terminal portions of the socket and a power source terminal to which the commercial power source is connected. A step of connecting an LED lighting circuit including a converter, and at least two of the four terminal portions of the socket in the fluorescent lamp lighting circuit and a power supply terminal to which the commercial power supply is connected; Electrically disconnecting the portion from the socket and the power supply terminal, and attaching the LED lamp having four terminals attachable to the four terminal portions of the socket. The LED lamp includes a first diode bridge connected to two of the four terminals of the LED lamp, a second diode bridge connected to the other two of the four terminals, and the first An LED element connected between a positive pole output terminal and a negative pole output terminal of the first diode bridge and the second diode bridge;

  According to the above construction method, the fluorescent lamp lighting circuit between at least two of the four terminal portions of the socket and the power supply terminal is disconnected, and the LED lighting circuit is provided in at least two of the four terminal portions of the socket. Connected. Thereby, DC power is supplied to at least two of the four terminal portions of the socket to which the LED lamp is attached. Note that at least two terminal portions of the socket to which the fluorescent lamp lighting circuit to be disconnected is connected and at least two terminal portions to which the LED lighting circuit is connected may be the same or different. Also good. Four terminals of the LED lamp are attached to the four terminal portions of the socket. Here, the LED lamp includes a first diode bridge connected to two of the four terminals, a second diode bridge connected to the other two, and a positive pole of the first and second diode bridges. The LED element is connected between the output terminal and the negative output terminal. For this reason, the positive and negative poles of DC power can be supplied to any two of the four terminals of the LED lamp, and the LED lamp can be normally lit. That is, the operator does not have to consider the combination of the four terminals of the LED lamp and the DC output terminal of the LED lighting circuit. For example, the worker can realize a configuration in which the LED lamp can be lit by connecting an LED lighting circuit to any two of the four terminal portions of the socket.

  In the above construction method, the operator replaces the lighting circuit for the fluorescent lamp between the power supply terminal connected to the commercial power source and the socket with the lighting circuit for the LED, and installs the LED lamp in the socket. Can be constructed. At this time, the worker details the structure of the fluorescent lamp lighting circuit, which of the four terminal portions of the socket the LED lighting circuit is connected to, and further, the four terminals of the LED lamp and the four terminals of the socket. There is no need to consider combinations with parts. Therefore, the construction for replacing the fluorescent lamp with the LED lamp is facilitated with respect to the lighting apparatus for the fluorescent lamp including the existing lighting circuit.

  A construction method according to another aspect of the present invention is a construction method for LED lamp replacement work in which an LED lamp is attached instead of a fluorescent lamp in a fluorescent lamp apparatus. The fluorescent lamp fixture includes a socket including four terminal portions to which the four terminals of the fluorescent lamp are attached, and a fluorescent lamp lighting circuit electrically connected to at least two of the four terminal portions of the socket. And a power supply terminal to which an external commercial power supply is connected. In the construction method, in the fluorescent lamp lighting circuit, a portion connected between at least two of the four terminal portions of the socket and a power supply terminal to which the commercial power supply is connected, the socket and the power supply terminal. Electrically disconnecting from the socket, connecting at least two of the four terminal portions of the socket to a line to which AC power supplied from the commercial power source is input, and connecting the four terminal portions of the socket to the four terminal portions of the socket Attaching the LED lamp having four attachable terminals. The LED lamp includes a first diode bridge connected to two of the four terminals of the LED lamp, a second diode bridge connected to the other two of the four terminals, and the first An LED element connected between a positive pole output terminal and a negative pole output terminal of the first diode bridge and the second diode bridge;

  According to the above construction method, the fluorescent lamp lighting circuit between at least two of the four terminal portions of the socket and the power supply terminal is disconnected, and at least two of the four terminal portions of the socket have AC power of commercial power. Is connected. Thereby, AC power is supplied to at least two of the four terminal portions of the socket to which the LED lamp is attached. Note that at least two terminal portions of the socket to which the fluorescent lamp lighting circuit to be disconnected is connected and at least two terminal portions to which the AC power line is connected may be the same or different. Also good. Four terminals of the LED lamp are attached to the four terminal portions of the socket. Here, the LED lamp includes a first diode bridge connected to two of the four terminals of the LED lamp, a second diode bridge connected to the other two terminals of the four terminals, and a first LED elements connected between the output terminal of the positive pole and the output terminal of the negative pole of the diode bridge and the second diode bridge. As a result, even when the AC power line is connected to two of the four terminals of the LED lamp and the two terminals of the other end are not connected, the LED lamp can be lit. The LED lamp can be lit even when an AC power line is connected to both the terminal and the other two terminals. Therefore, the operator does not have to strictly consider the combination of the four terminals of the LED lamp and the AC power line.

  In the above construction method, the operator disconnects the fluorescent lamp lighting circuit between the power supply terminal to which the commercial power supply is connected and the socket, and connects the line to which the AC power of the commercial power supply is supplied to the terminal portion of the socket. The LED lamp replacement work can be done by attaching the LED lamp to the socket. At this time, the operator details the structure of the lighting circuit for the fluorescent lamp, which of the four terminals of the socket is connected to the AC power line of the commercial power supply, and further, the four terminals of the LED lamp and the socket. It is not necessary to strictly consider the combination with the four terminal portions. Therefore, the construction for replacing the fluorescent lamp with the LED lamp is facilitated with respect to the lighting apparatus for the fluorescent lamp including the existing lighting circuit.

  In the above LED replacement construction method, in the fluorescent lamp lighting circuit, a portion between two of the four terminal portions of the socket, the power supply terminal to which the commercial power supply is connected, and the socket A portion of the wiring that is not positioned between them may be left without being cut. According to the construction method described above, the LED lamp is normally lit even if the fluorescent lamp lighting circuit is left without being cut. Thereby, the process of cutting the wiring of the fluorescent lamp lighting circuit can be reduced. Therefore, the construction becomes easier.

  Of the fluorescent lamp lighting circuit, a portion between two of the four terminal portions of the socket, the portion not located between the power supply terminal to which the commercial power supply is connected and the socket is the socket. A glow lamp circuit or an electronic starter circuit connected between two of the four terminal portions may be used. According to the construction method described above, the LED lamp is normally lit even if the glow lamp circuit or the electronic starter circuit is left without being cut from the socket. Therefore, it is possible to reduce the process of cutting the glow lamp circuit or the electronic starter circuit. Therefore, the construction becomes easier.

  The fluorescent lamp apparatus may have a plurality of sockets for mounting a plurality of fluorescent lamps. Furthermore, the fluorescent lamp lighting circuit may include a fluorescent lamp lighting circuit common to the plurality of sockets for lighting a plurality of fluorescent lamps. In this case, in the construction method, in the fluorescent lamp lighting circuit, a portion connected between a power supply terminal to which the commercial power supply is connected and at least two of the four terminal portions of the socket, In the step of electrically disconnecting from the socket and the power supply terminal, the fluorescent lamp lighting circuit common to the plurality of sockets can be electrically disconnected from the socket and the power supply terminal. As a result, the work efficiency is increased because the fluorescent lamp lighting circuit common to the plurality of sockets is separated. As a result, construction becomes easier.

  When connecting a line to which AC power supplied from a commercial power source is input to at least two of the four terminal portions of the socket, the LED lamp includes the first diode bridge and the second diode bridge, The structure further provided with the 3rd diode bridge connected between the said LED elements may be sufficient. Thereby, for example, even when an AC power line is connected to one of the two terminals at one end of the LED lamp and one of the two terminals at the other end, the LED lamp can be turned on. . Therefore, the worker does not need to consider the combination of the four terminals of the LED lamp and the AC power line. As a result, construction becomes easier.

  ADVANTAGE OF THE INVENTION According to this invention, the construction for replacing | exchanging a fluorescent lamp with an LED lamp becomes easy with respect to the lighting fixture for fluorescent lamps containing the lighting circuit for existing fluorescent lamps.

It is a figure which shows the structure of the instrument for fluorescent lamps in Embodiment 1. FIG. It is a figure for demonstrating the process of the construction with respect to the fluorescent lamp instrument. It is a figure which shows the structural example of an LED lamp. It is a figure which shows an example of the pattern of the positive pole of a DC output of the lighting circuit for LED connected to four terminals of an LED lamp, and a negative pole. It is a figure which shows the example of the lighting circuit which has an electronic starter and a ballast. It is a figure which shows the structural example of the fixture for fluorescent lamps which used the inverter circuit as a lighting circuit for fluorescent lamps. It is a figure for demonstrating the construction process of the fixture for fluorescent lamps shown in FIG. It is a figure which shows the structure of the instrument for fluorescent lamps in Embodiment 2. FIG. It is a figure which shows the structural example of the LED lamp in FIG. It is a figure which shows the other structural example of an LED lamp. It is a figure which shows an example of the pattern of the alternating current terminal connected to the four terminals 31-34 of the LED lamp 3a.

(Embodiment 1)
The present embodiment relates to a construction method for installing an LED lamp instead of a fluorescent lamp on a fluorescent lamp apparatus. FIG. 1 is a diagram illustrating a configuration of a fluorescent lamp device 10 according to the present embodiment. The fluorescent lamp device 10 is, for example, a showcase. The fluorescent lamp device 10 has a plurality of sets of sockets 2 to which a plurality of fluorescent lamps 1A and 1B are attached. Each of the plurality of sets of sockets 2 has four terminal portions 21 to 24. Four terminals of the fluorescent lamps 1A and 1B are attached to the four terminal portions 21 to 24. That is, the fluorescent lamp device 10 has a configuration that assumes that a fluorescent lamp is attached to each socket 2.

  The glow lamp circuit 1 is connected between the two terminal portions 21 and 23 among the four terminal portions 21 to 24 of the socket 2. The glow lamp circuit 1 includes a glow lamp connected between the two terminal portions 21 and 23 and a capacitor connected in parallel to the glow lamp. A ballast 5 is connected between the other terminal portion 22 of the four terminal portions 21 to 24 of the socket 2 and the power supply terminal 7 to which the external commercial power supply 8 is connected. A switch 6 is connected between one of the four terminal portions 21 to 24 of the plurality of sockets 2 and the power supply terminal 7.

  The ballast 5 is an example of a fluorescent lamp lighting circuit connected between the socket 2 and an external commercial power supply 8. The ballast 5 is a fluorescent lamp lighting circuit common to a plurality of sets of sockets 2. That is, the ballast 5 is a fluorescent lamp lighting circuit for lighting a plurality of fluorescent lamps 1A, 1B. The external commercial power supply 8 can be, for example, an electric power system for supplying electric power by an electric power company. The power supply terminal 7 may be connected to a power supply system that supplies power having the same voltage and frequency as the commercial power supply, such as a private power generation system, instead of the commercial power supply 8.

  FIG. 2 is a diagram for explaining a construction process for the fluorescent lamp device 10 shown in FIG. 1. The construction includes a step of electrically disconnecting the ballast 5 from both the socket 2 and the power terminal 7. In this step, for example, the wiring between the ballast 5 and the power supply terminal 7 and the wiring between the ballast 5 and the socket 2 are cut.

  Further, the construction includes a step of connecting the LED lighting circuit 4 to the plurality of sockets 2. In this step, for example, the LED lighting circuit 4 is connected between the power terminal 7 and the two terminal portions 22 and 24 of each of the plurality of sockets 2. The LED lighting circuit 4 converts the input AC power into a direct current and outputs the direct current. The LED lighting circuit 4 includes an AC / DC converter. This AC / DC converter is arrange | positioned so that DC power may be supplied with respect to the two terminal parts 22 and 24 of each of the some socket 2, for example. Thus, the LED lighting circuit 4 converts AC power into DC power for lighting the LED lamp. In addition to the AC / DC converter, the LED lighting circuit 4 may include a circuit for adjusting power, such as a rectifier, a booster circuit, and an overcurrent limiting circuit. Thus, the ballast 5 is replaced with the LED lighting circuit 4 by the cutting process of the ballast 5 and the connecting process of the LED lighting circuit 4.

  The terminal portion of the socket 2 to which the LED lighting circuit 4 is connected is not limited to the above example. For example, the LED lighting circuit 4 may be connected to the two terminal portions 21 and 22 of each of the plurality of sockets 2 or may be connected to the other two terminal portions 23 and 24.

  The construction includes a step of attaching the LED lamp 3 to the socket 2. The LED lamp 3 has four terminals that can be attached to the four terminal portions 21 to 24 of the socket 2. The LED lamp 3 includes a first diode bridge, a second diode bridge, and an LED element (details will be described later). By using the LED lamp 3 having this configuration, the degree of freedom in combining the four terminals of the LED lamp 3 and the four terminal portions 21 to 24 of the socket 2 is increased. Moreover, even if it connects the lighting circuit 4 for LED to any two terminals among the four terminal parts 21-24 of the socket 2, it becomes a structure which can operate | move.

  FIG. 3 is a diagram illustrating a configuration example of the LED lamp 3. The LED lamp 3 has four terminals 31 to 34. The LED lamp 3 includes a first diode bridge 30a, a second diode bridge 30b, an LED element 36, and a dimming circuit 35. The two input terminals P1 and P3 of the first diode bridge 30a are connected to the two terminals 31 and 32 among the four terminals 31 to 34. The two input terminals P1 and P3 of the second diode bridge 30b are connected to the other two terminals 33 and 34 among the four terminals 31 to 34. The positive polarity (high voltage side) output terminal P2 of the first diode bridge 30a and the second diode bridge 30b and the negative polarity (low voltage side) output terminal P4 of the first diode bridge 30a and the second diode bridge 30b. In the meantime, the LED element 36 is connected. Thereby, the LED element 36 is connected so that the output terminal of the first diode bridge 30a and the output terminal of the second diode bridge 30b have the same polarity.

  In the example shown in FIG. 3, the LED element 36 has a configuration in which a plurality of LED arrays in which a plurality of light emitting diodes are connected in series are further connected in parallel. The configuration of the LED element 36 is not limited to this example.

  In the example shown in FIG. 3, a dimming circuit 35 is provided between the first diode bridge 30 a and the second diode bridge 30 b and the LED element 36. The light control circuit 35 can adjust the light emission amount of the LED element 36 by PWM control, for example. The dimming circuit 35 may be omitted.

  In the example shown in FIG. 3, the input terminals P1, P3 of the first diode bridge 30a are connected to the two terminals 31, 32 at one end of the LED lamp 3, and the input terminals P1, P3 of the second diode bridge 30b. Is connected to the two terminals 33 and 34 at the other end of the LED lamp 3. The connection relationship of the terminals is not limited to this example. For example, the input terminals P1 and P3 of the first diode bridge 30a are connected to one terminal 31 and the other terminal 33 of the LED lamp 3, and the input terminals P1 and P3 of the second diode bridge 30b are connected to the LED lamp 3. May be connected to a terminal 32 at one end and a terminal 34 at the other end.

  FIG. 4 is a diagram illustrating an example of positive and negative pole patterns of DC output of the LED lighting circuit 4 connected to the four terminals 31 to 34 of the LED lamp 3. In any of the patterns shown in FIG. 4, the LED lamp 3 can be normally lit by the DC power supplied from the LED lighting circuit 4.

  As an example, the plus and minus poles of the DC output of the LED lighting circuit 4 can be connected to any two of the four terminals 31 to 34 of the LED lamp. For example, as shown in FIGS. 4A and 4B, a plus pole and a minus pole may be connected to the two terminals 31, 32 at one end of the LED lamp 3, respectively. Further, as shown in FIGS. 4C and 4D, a positive pole is provided at one of the two terminals 31 and 32 at one end of the LED lamp 3, and any of the two terminals 33 and 34 at the other end is provided. A negative pole may be connected.

  Moreover, you may connect the positive pole or negative pole of the direct current | flow output of the LED lighting circuit 4 to each of arbitrary three terminals among the four terminals 31-34 of an LED lamp. For example, as shown in FIG. 4E, a positive pole is connected to one of the two terminals 31, 32 at one end of the LED lamp 3 and one of the two terminals 33, 34 at the other end. The negative pole may be connected to one other terminal. Alternatively, as shown in FIG. 4F, a positive electrode may be connected to the two terminals 31 and 32 at one end, and a negative terminal may be connected to one of the terminals 33 and 34 at the other end. 4 (g) and 4 (h), a positive terminal is connected to any one of the four terminals 31 to 34, and a negative terminal is connected to any two of the other three terminals. Can also be connected.

  Moreover, you may connect the positive pole or the negative pole of the direct current | flow output of the lighting circuit 4 for LED to all the four terminals 31-34 of an LED lamp. For example, as shown in FIG. 4 (i), the plus and minus poles are connected to the two terminals 31 and 32 at one end of the LED lamp 3, and the plus and minus poles of the two terminals 33 and 34 at the other end. May be connected. As shown in FIG. 4 (j), a positive pole may be connected to the two terminals 31, 32 at one end, and a negative terminal may be connected to the two terminals 33, 34 at the other end. In addition, a plus terminal can be connected to any one of the four terminals 31 to 34, and a minus terminal can be connected to the other three terminals.

  In any of the patterns in which the positive and negative poles of the direct current output of the LED lighting circuit 4 are connected to the terminals 31 to 34 of the LED lamp 3, direct current flows through the LED lamp 3, and the glow lamp circuit 1 Not flowing. Therefore, it is not necessary to disconnect the glow lamp circuit 1 from the socket 2. In the construction, the wiring of the glow lamp circuit 1 can be left uncut.

  As described above, the construction of this embodiment includes the step of disconnecting the existing lighting circuit between the socket 2 and the power supply terminal 7, the step of connecting the LED lighting circuit 4 between the socket 2 and the power supply terminal 7, and FIG. 3 includes a step of attaching the LED lamp 3 shown in 3 to the socket 2 instead of the fluorescent lamps 1A and 1B. By including these steps, as shown in FIG. 4, the arrangement of the positive and negative poles of the direct current output of the LED lighting circuit 4 and the four sockets 2 of the four terminals 31 to 34 of the LED lamp 3 The degree of freedom of the connection relationship with the terminal portions 21 to 24 is increased. For this reason, the operator, in the implementation of the construction, the detailed configuration of the fluorescent lamp lighting circuit between the power supply terminal 7 and the socket 2, the direct current output of the LED lighting circuit 4 and the terminal portions 21 to 24 of the socket 2, It is not necessary to consider the relationship. As a result, construction becomes easier.

  Further, in the above construction, the process of separating the glow lamp circuit 1 is not necessary. The glow lamp circuit 1 is a lighting circuit between two terminals of the four terminal portions of the socket 2, and is an example of a fluorescent lamp lighting circuit that is not located between the socket 2 and the power supply terminal 7. The wiring of such a fluorescent lamp lighting circuit can be left without being cut. In this way, the construction becomes easier by eliminating a part of the process of separating the fluorescent lamp lighting circuit.

  The fluorescent lamp lighting circuit of the fluorescent lamp apparatus that is the subject of the present invention is not limited to the one having the glow lamp circuit and the ballast as in the above example. FIG. 5 is a diagram showing an example of a fluorescent lamp lighting circuit having an electronic starter and a ballast. In the example shown in FIG. 5, the electronic starter circuit 11 is connected between the two terminal portions 21 and 23 of the socket 2. The electronic starter circuit 11 includes a capacitor, a semiconductor switch, and a control circuit connected between the two terminal portions 21 and 23. The capacitor, the semiconductor switch, and the control circuit are connected in parallel between the two terminal portions 21 and 23.

  The electronic starter circuit 11 is a part of a fluorescent lamp lighting circuit. Specifically, the electronic starter circuit 11 is a portion between two of the four terminal portions 21 to 24 of the socket 2 in the fluorescent lamp lighting circuit, and between the socket 2 and the power supply terminal 7. It is a part that is not located. The wiring of this part may be left uncut in the construction.

  The ballast 5 can be disconnected and the LED lighting circuit 4 can be connected in the same manner as in the example shown in FIG. Moreover, the structure of the LED lamp 3 attached to the socket 2 instead of the fluorescent lamps 1A and 1B can be the same as the structure shown in FIG.

  FIG. 6 is a diagram illustrating a configuration example of the fluorescent lamp fixture 10a using the inverter circuit 12 as a fluorescent lamp lighting circuit. The inverter circuit 12 is connected to the four terminal portions 21 to 24 of the socket 2. The inverter circuit 12 is connected between the two terminal portions 21 to 24 of the socket and the power supply terminal 7. That is, the inverter circuit 12 is an example of a fluorescent lamp lighting circuit connected between a power supply terminal to which a commercial power supply is connected and at least two of the four terminal portions of the socket 2.

  FIG. 7 is a diagram for explaining a construction process of the fluorescent lamp device 10a shown in FIG. The construction includes a step of separating the inverter circuit 12 from both the power supply terminal 7 and the terminal portions 21 to 24 of the socket 2. In this example, the wiring between the inverter circuit 12 and the power supply terminal 7 and the wiring between the terminal portions 23 and 24 of the socket 2 and the inverter circuit 12 are cut. In addition to these, the wiring between the terminal portions 21 and 22 of the socket 2 and the inverter circuit 12 may be cut.

  The construction includes a step of connecting the LED lighting circuit 4 between the two terminal portions 23 and 24 of the socket 2 and the power supply terminal 7. In the example of FIG. 7, the positive and negative poles of the DC output of the LED lighting circuit 4 are connected to the two terminal portions 23 and 24 of the socket 2. The AC input terminal of the LED lighting circuit 4 is connected to the power supply terminal 7. The terminal part of the socket to which the positive and negative poles of the DC output of the LED lighting circuit 4 are connected is not limited to the example shown in FIG. For example, various patterns including the pattern illustrated in FIG. 4 can be connected.

  In the configuration shown in FIG. 6, a rapid start circuit may be provided instead of the inverter circuit 12. In this case, the rapid start circuit is an example of a fluorescent lamp lighting circuit connected between a power supply terminal connected to a commercial power supply and at least two of the four terminal portions of the socket 2. Construction can be performed in the same manner as in FIG. That is, the rapid start circuit is disconnected from both the power supply terminal 7 and the terminal portions 21 to 24 of the socket 2 during construction. The LED lighting circuit 4 is connected between the two terminal portions 23 and 24 of the socket 2 and the power supply terminal 7. Instead of the fluorescent lamp 1A, the LED lamp 3 is attached to the socket 2.

  The fluorescent lamp device 10a shown in FIGS. 6 and 7 is configured to include a pair of sockets 2 for mounting one fluorescent lamp 1A. The fluorescent lamp device 10a may include a plurality of sets of sockets for mounting a plurality of fluorescent lamps. In this case, the inverter circuit 12 may be connected to a plurality of sets of sockets. That is, the inverter circuit 12 can be a common fluorescent lamp lighting circuit for lighting a plurality of fluorescent lamps. A fluorescent lamp apparatus having a rapid start circuit instead of the inverter circuit can also include a plurality of sets of sockets to which a plurality of fluorescent lamps are attached. In this case, the rapid start circuit can be a common fluorescent lamp lighting circuit for lighting a plurality of fluorescent lamps. In the configuration shown in FIG. 1, the ballast 5 is a common fluorescent lamp lighting circuit for lighting a plurality of fluorescent lamps.

  As described above, this embodiment can be applied to the construction of a fluorescent lamp apparatus having a plurality of sets of sockets to which a plurality of fluorescent lamps are respectively attached. In this case, a fluorescent lamp lighting circuit is connected between the plurality of sets of sockets and the power supply terminals. This fluorescent lamp lighting circuit can be a common fluorescent lamp lighting circuit for lighting a plurality of fluorescent lamps. The construction can include a step of electrically disconnecting the common fluorescent lamp lighting circuit from both the power supply terminal and the socket, and a step of connecting one LED lighting circuit to a plurality of sets of sockets. This LED lighting circuit supplies DC power to a plurality of sets of sockets. That is, the LED lighting circuit is an AC / DC converter common to a plurality of sets of sockets. Thus, construction can be made easier by including the separation process of the lighting circuit for fluorescent lamps for the plurality of sets of sockets and the connection process of one LED lighting circuit for the plurality of sets of sockets.

  Furthermore, the wiring of the fluorescent lamp lighting circuit individually provided for each of the plurality of fluorescent lamps can be left without being cut. In the above example, the glow lamp circuit 1 and the electronic starter circuit 11 are an example of a fluorescent lamp lighting circuit provided individually for each of a plurality of fluorescent lamps. According to the construction of the present embodiment described above, the LED lamp 3 can be normally lit even if such individual fluorescent lamp lighting circuit provided for each fluorescent lamp is left as it is.

(Embodiment 2)
FIG. 8 is a diagram for explaining the construction in the present embodiment. The example shown in FIG. 8 is an example of construction for the fluorescent lamp apparatus 10 shown in FIG. The construction includes a step of electrically disconnecting the ballast 5 from both the socket 2 and the power terminal 7. In this step, for example, the wiring between the ballast 5 and the power supply terminal 7 and the wiring between the ballast 5 and the socket 2 are cut.

  Further, the construction includes a step of connecting a line to which AC power supplied from the external commercial power supply 8 is input to at least two of the four terminal portions 21 to 24 of the socket 2. In the example shown in FIG. 8, a line 9 that bypasses the disconnected ballast 5 is provided. That is, the ballast 5 is replaced with the line 9. As a result, the power supply terminal 7 and the two terminal portions 22 and 24 of each of the plurality of sockets 2 are connected by the conductive wires.

  The power supply terminal 7 to which the external commercial power supply 8 is input includes a grounded N (Neutral) terminal and a non-grounded L (Live) terminal. In the example of FIG. 8, the N terminal is connected to one terminal portion 22 of the socket 2, and the L terminal is connected to the other one terminal portion 24 of the socket 2. As will be described later, an N terminal and an L terminal may be connected to any two of the four terminal portions 21 to 24 of the socket 2.

  The construction includes a step of attaching the LED lamp 3 a to the socket 2. The LED lamp 3 a has four terminals that can be attached to the four terminal portions 21 to 24 of the socket 2. The LED lamp 3a includes a first diode bridge, a second diode bridge, a third diode ridge, and an LED element (details will be described later). By using the LED lamp 3a having this configuration, the degree of freedom in combining the four terminals of the LED lamp 3a and the four terminal portions 21 to 24 of the socket 2 is increased. Moreover, even if it connects the L terminal and N terminal of alternating current power to which two terminals among the four terminal parts 21-24 of the socket 2, it becomes a structure which can operate | move.

  FIG. 9 is a diagram showing a configuration example of the LED lamp 3a in FIG. The LED lamp 3a has four terminals 31-34. The LED lamp 3 a includes an LED module 41 and an LED lighting circuit 42. The LED lighting circuit 42 includes a first diode bridge 30c, a second diode bridge 30d, and a third diode bridge 3e. The LED module 41 includes an LED element 36 and a dimming circuit 35.

  The two input terminals P1 and P3 of the first diode bridge 30c are connected to the two terminals 31 and 32 among the four terminals 31 to 34 of the LED lamp 3a. The two input terminals P1 and P3 of the second diode bridge 30d are connected to the other two terminals 33 and 34 among the four terminals 31 to 34 of the LED lamp 3a. The positive polarity (high voltage side) output terminal P2 of the first diode bridge 30c and the second diode bridge 30d and the negative polarity (low voltage side) output terminal P4 of the first diode bridge 30c and the second diode bridge 30d. The third diode bridge 3e is connected between them. That is, one input terminal P1 of the third diode bridge 3e is connected to the positive output terminals of the first diode bridge 3c and the second diode bridge 3d. The other input terminal P3 of the third diode bridge 3e is connected to the negative output terminals of the first diode bridge 3c and the second diode bridge 3d. The positive output terminal of the third diode bridge 3 e is connected to the positive terminal block 421 of the LED lighting circuit 42. The negative output terminal of the third diode bridge 3 e is connected to the negative terminal block 422 of the LED lighting circuit 42.

  The plus terminal block 421 of the LED lighting circuit 42 is connected to the plus terminal 411 of the LED module 41. The minus terminal block 422 of the LED lighting circuit 42 is connected to the minus terminal 412 of the LED module 41. The LED element 36 is connected between the plus terminal 411 and the minus terminal 412. In the example shown in FIG. 9, between the plus terminal 411 and the minus terminal 412, a plurality of light emitting diodes connected in series are further connected in parallel in a plurality of rows. A dimming circuit 35 is provided between the plus terminal 411 and the minus terminal 412 and the LED element 36. The dimming circuit 35 may be omitted.

  In the example shown in FIG. 9, the LED lighting circuit 42 converts AC power input from at least two of the terminals 31 to 34 to DC power and supplies the DC power to the LED module 41. It can be said that the LED lighting circuit 42 is a power supply circuit incorporating an AC / DC converter. The configuration of the LED lighting circuit 42 is not limited to the example shown in FIG. For example, the LED lighting circuit 42 may include a circuit for adjusting power, such as a rectifier, a booster circuit, and an overcurrent limiting circuit. Specifically, between the first diode bridge 30c and the terminals 31, 32, between the second diode bridge 30d and the terminals 33, 34, between the first diode bridge 30c or the second diode bridge 3d, and the third diode bridge 3e. Meanwhile, another circuit may be connected to at least one of the third diode bridge 3e and the terminal blocks 421 and 422.

  As an example, as shown in FIG. 10, the LED lighting circuit 42 may include a first lighting circuit 43c, a second lighting circuit 43d, and a third diode bridge 30e. The first lighting circuit 43c includes a first diode bridge 30c and a first AC / DC converter 44c. The second lighting circuit 43d includes a second diode bridge 30d and a second AC / DC converter 44d. The positive output terminals of the first lighting circuit 43c and the second lighting circuit 43d are connected to one input terminal P1 of the third diode bridge. The negative output terminals of the first lighting circuit 43c and the second lighting circuit 43d are connected to the other input terminal P3 of the third diode bridge.

  The connection relationship between the terminals 31 to 34 and the first and second diode bridges 30c and 30d is not limited to the example of FIG. For example, the input terminals P1 and P3 of the first diode bridge 30c are connected to one terminal 31 and the other terminal 33 of the LED lamp 3a, and the input terminals P1 and P3 of the second diode bridge 30d are connected to the LED lamp 3 May be connected to a terminal 32 at one end and a terminal 34 at the other end.

  In the example shown in FIG. 9, the LED module 41 and the LED lighting circuit 42 are mounted on different substrates. In contrast, the LED module 41 and the LED lighting circuit 42 may be mounted on the same substrate.

  FIG. 11 is a diagram illustrating an example of a pattern of AC terminals connected to the four terminals 31 to 34 of the LED lamp 3a. In any of the patterns shown in FIG. 11, the LED lamp 3a can be normally lit by the supplied AC power.

  As an example, the L terminal on the non-ground side of the AC output and the grounded N terminal can be connected to any two of the four terminals 31 to 34 of the LED lamp 3a. For example, as shown in FIGS. 11A and 11B, an L terminal and an N terminal may be connected to the two terminals 31 and 32 at one end of the LED lamp 3a, respectively. Moreover, as shown in FIG.11 (c) and FIG.11 (d), N terminal is set to either of the two terminals 31 and 32 of the one end of LED lamp 3a, and either of the two terminals 33 and 34 of the other end is set. The L terminal may be connected.

  Moreover, you may connect the L terminal or N terminal of an alternating current output to each of arbitrary three terminals among the four terminals 31-34 of an LED lamp. For example, as shown in FIG. 11 (e), the L terminal is connected to one of the two terminals 31, 32 at one end of the LED lamp 3a and one of the two terminals 33, 34 at the other end. The N terminal may be connected to the other one terminal. Alternatively, as shown in FIG. 11 (f), the L terminal may be connected to the two terminals 31 and 32 at one end, and the N terminal may be connected to one of the terminals 33 and 34 at the other end. 11 (g) and 11 (h), an L terminal is connected to any one of the four terminals 31 to 34, and an N terminal is connected to any two of the other three terminals. Can also be connected.

  Moreover, you may connect the L terminal or N terminal of alternating current output to all the four terminals 31-34 of an LED lamp. For example, as shown in FIG. 11 (i), the L terminal and the N terminal are connected to the two terminals 31, 32 at one end of the LED lamp 3a, and the L terminal and the N terminal of the two terminals 33, 34 at the other end. May be connected. As shown in FIG. 11 (j), the L terminal may be connected to the two terminals 31, 32 at one end, and the N terminal may be connected to the two terminals 33, 34 at the other end. Further, the L terminal can be connected to any one of the four terminals 31 to 34, and the N terminal can be connected to the other three terminals.

  In any of the patterns in which the L terminal and the N terminal of the AC output are connected to the terminals 31 to 34 of the LED lamp 3a, the AC current flows to the LED lamp 3a and does not flow to the glow lamp circuit 1. Therefore, it is not necessary to disconnect the glow lamp circuit 1 from the socket 2. In the construction, the wiring of the glow lamp circuit 1 can be left uncut.

  As described above, the construction of the present embodiment includes a step of disconnecting an existing fluorescent lamp lighting circuit between the socket 2 and the power terminal 7, a step of connecting an AC power line supplied from the outside to the socket 2, and A step of attaching the LED lamp 3a shown in FIG. 9 to the socket 2 instead of the fluorescent lamps 1A and 1B is included. By including these steps, as shown in FIG. 11, the arrangement of the L terminal and the N terminal of the AC output, the four terminal portions 21 to 24 of the socket 2 of the four terminals 31 to 34 of the LED lamp 3a, The degree of freedom of the connection relationship is increased. Therefore, the worker considers the detailed configuration of the fluorescent lamp lighting circuit between the power supply terminal 7 and the socket 2 and the relationship between the AC power line and the terminal portions 21 to 24 of the socket 2 when the construction is performed. You don't have to. As a result, construction becomes easier.

  In the present embodiment, the third diode bridge 30e may be omitted from the LED lighting circuit 42 shown in FIGS. Even in this case, the degree of freedom of the connection relationship between the AC power terminal and the terminals 33 to 34 of the LED lamp 3a can be ensured to some extent.

  In the present embodiment, as in the first embodiment, the fluorescent lamp lighting circuit of the target fluorescent lamp fixture is not limited to the one having the glow lamp circuit and the ballast. For example, the present embodiment can be applied to a fluorescent lamp lighting circuit having an electronic starter and a ballast, an inverter circuit, a rapid start circuit, and other fluorescent lamp lighting circuits.

  The present invention is not limited to the above embodiment. For example, the shape of the fluorescent lamp and the LED lamp can be a circular pipe, a U-shaped pipe or the like in addition to the straight pipe described above. When the fluorescent lamp and the LED lamp are straight pipes or U-shaped pipes, terminals are arranged at both ends of one fluorescent lamp or LED lamp. Therefore, a socket for attaching one fluorescent lamp or LED lamp is a set of two bodies corresponding to the terminals at both ends. On the other hand, the socket for attaching the fluorescent lamp or LED lamp of one circular tube can be comprised by 1 body.

  Examples of the fluorescent lamp lighting circuit applicable to the present invention include a glow lamp, an electronic starter circuit, an inverter circuit, or a rapid start circuit as described above. Further, the order of the step of disconnecting the fluorescent lamp lighting circuit between the power terminal and the socket, the step of connecting the LED lighting circuit to the socket, and the step of attaching the LED lamp is not limited to the above example.

DESCRIPTION OF SYMBOLS 1 Glow lamp circuit 2 Socket 3 LED lamp 4 AC / DC converter 5 Ballast 7 Power supply terminal 8 Commercial power supply 21-24 Socket terminal part 30a, 30b Diode bridge 31-34 LED lamp terminal 36 LED element

Claims (6)

In an apparatus for fluorescent lamps, an LED lamp replacement construction method for attaching an LED lamp instead of a fluorescent lamp,
The fluorescent lamp fixture includes a socket including four terminal portions to which the four terminals of the fluorescent lamp are attached, and a fluorescent lamp lighting circuit electrically connected to at least two of the four terminal portions of the socket. And a power supply terminal to which an external commercial power supply is connected,
In the construction method, AC / DC is supplied by converting AC power supplied from the commercial power source into direct current between a power terminal to which the commercial power source is connected and at least two of the four terminal portions of the socket. Connecting an LED lighting circuit including a converter;
Of the fluorescent lamp lighting circuit, a portion connected between a power supply terminal to which the commercial power supply is connected and at least two of the four terminal portions of the socket is electrically disconnected from the socket and the power supply terminal. Process,
Attaching the LED lamp having four terminals attachable to the four terminal portions of the socket,
The LED lamp includes a first diode bridge connected to two of the four terminals of the LED lamp, a second diode bridge connected to the other two of the four terminals, and the first An LED lamp exchanging method comprising an LED element connected between a positive electrode output terminal and a negative electrode output terminal of one diode bridge and the second diode bridge. In an apparatus for fluorescent lamps, an LED lamp replacement construction method for attaching an LED lamp instead of a fluorescent lamp,
The fluorescent lamp fixture includes a socket including four terminal portions to which the four terminals of the fluorescent lamp are attached, and a fluorescent lamp lighting circuit electrically connected to at least two of the four terminal portions of the socket. And a power supply terminal to which an external commercial power supply is connected,
Of the fluorescent lamp lighting circuit, a portion connected between a power supply terminal to which the commercial power supply is connected and at least two of the four terminal portions of the socket is electrically connected from the socket and the power supply terminal. Detaching process,
Connecting a line to which AC power supplied from the commercial power source is input to at least two of the four terminal portions of the socket;
Attaching the LED lamp having four terminals attachable to the four terminal portions of the socket,
The LED lamp includes a first diode bridge connected to two of the four terminals of the LED lamp, a second diode bridge connected to the other two of the four terminals, and the first An LED lamp exchanging method comprising an LED element connected between a positive electrode output terminal and a negative electrode output terminal of one diode bridge and the second diode bridge.   Of the fluorescent lamp lighting circuit, the wiring between the two terminal portions of the socket and between the power supply terminal to which the commercial power supply is connected and the socket, The construction method of the LED lamp replacement construction according to claim 1 or 2, wherein the construction is left without being cut.   Of the fluorescent lamp lighting circuit, a portion between two of the four terminal portions of the socket, the portion not located between the power supply terminal to which the commercial power supply is connected and the socket is the socket. The construction method of the LED lamp replacement work of Claim 3 which is a glow lamp circuit or an electronic starter circuit connected between two among these four terminal parts. The fluorescent lamp apparatus has a plurality of sockets for mounting a plurality of fluorescent lamps,
The fluorescent lamp lighting circuit includes a fluorescent lamp lighting circuit common to the plurality of sockets for lighting a plurality of fluorescent lamps,
Of the fluorescent lamp lighting circuit, a portion connected between a power supply terminal to which the commercial power supply is connected and at least two of the four terminal portions of the socket is electrically disconnected from the socket and the power supply terminal. 5. The LED lamp replacement construction method according to claim 1, wherein in the step, the fluorescent lamp lighting circuit common to the plurality of sockets is electrically disconnected from the socket and the power supply terminal.   The said LED lamp is a construction method of the LED lamp replacement | exchange work of Claim 2 further provided with the 3rd diode bridge connected between the said 1st diode bridge and the said 2nd diode bridge, and the said LED element.

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