JPH0355270Y2 - - Google Patents

Description

[Detailed explanation of the idea]

Industrial Application Fields The present invention is a light-emitting element that can light up only when current is passed in a predetermined direction in a socket to which a non-polar light-emitting element such as an incandescent light bulb is connected. Regarding sockets. BACKGROUND ART Light emitting elements such as incandescent light bulbs do not have polarity due to their operating principle. For this reason, conventionally, in lighting devices using these light emitting elements, the light emitting elements light up no matter which direction current is applied. Problems to be Solved by the Invention However, it may be inconvenient if the light emitting element lights up no matter which direction the current is applied to it, as described above. Therefore, the present applicant previously disclosed in Utility Model Application No. 125925/1987, ``a light bulb support, an incandescent light bulb attached to the light bulb support, and a light bulb that is housed within the light bulb support and that is connected to the incandescent light bulb. It has a diode connected to one end to one terminal, and a socket into which the light bulb support is detachably attached, and when the light bulb support is attached to the socket, the light bulb support is attached to the socket. The present invention has proposed an incandescent light bulb device characterized in that the other terminal of the incandescent light bulb and the other end of the diode are electrically connected to a pair of terminals connected to each other. However, in this device, since the light bulb support is provided with a diode, there is a directionality in attaching the light bulb to the socket via the light bulb support. There was a problem in that each light bulb support had to be installed in the socket with care so that the diode was oriented in the correct direction, which was cumbersome. Purpose of the invention The present invention was made to solve the above-mentioned problems, and it is possible to make a light emitting element light up only when a current is passed in a predetermined direction.
Moreover, the socket and diode can be treated as if they were one element, eliminating the need for wiring, eliminating the need for directionality when attaching the light emitting element to the socket, and making it possible to mechanically protect the diode and improve its aesthetic appearance. Another object of the present invention is to provide an excellent light emitting device socket. Means for Solving the Problems The light emitting device socket according to the present invention is a light emitting device socket into which a non-polarized light emitting device can be inserted and removed, and includes a socket body and a pair of terminals attached to the socket body. The light emitting element socket has both poles of the light emitting element in contact with the pair of terminals when the light emitting element is attached to the socket main body, and a diode is housed in the socket main body, and One end of the diode is already mechanically coupled to one of the pair of terminals such that the polarity of the diode with respect to the terminal cannot be changed before the light emitting element is attached to the socket body. It is electrically connected. Function In the present invention, the diode conducts current only when a current is applied in a predetermined direction, current flows to the light emitting element connected to the socket, and the light emitting element lights up. Since the diode is connected to the socket in advance, the socket and diode can be handled as if they were one element, making handling convenient. ) You can connect the diode to the light emitting element by simply attaching it to the socket, eliminating the hassle of wiring. Further, since the polarity of the diode with respect to the terminal of the socket cannot be changed, there is no problem in mounting the light emitting element to the socket in any direction. Furthermore, since the diode is housed in the socket, the diode is mechanically protected and can be hidden from view from the outside, resulting in an aesthetically pleasing design. Embodiments Hereinafter, the present invention will be explained based on embodiments shown in the drawings. 1 and 2 show an embodiment of a socket according to the present invention, and FIGS. 3 and 4 show an example of a light emitting device constructed using the embodiment. In these figures, reference numeral 1 denotes a light bulb support made of synthetic resin, and this light bulb support 1 has a roughly hollow cylindrical shape with a bottom, and has flat parts 1a and 1b on its outer surface at positions 180 degrees apart from each other. is provided. Furthermore, lead wire insertion holes 1c and 1d are provided at the bottom of the light bulb support 1. Further, on the outer bottom surface of the light bulb support 1, a lead wire insertion hole 1c,
A groove 1e is provided to connect the outlet 1d to the flat parts 1a and 1b. The bottom side of an incandescent light bulb 2 is removably fitted into the light bulb support 1. And the light bulb 2
One lead wire 2a is inserted into the lead wire insertion hole 1c of the light bulb support 1, and is bent along the groove 1e and the flat portion 1a. The other lead wire 2b of the light bulb 2 is inserted into the lead wire insertion hole 1d of the light bulb support 1, and is bent along the groove 1e and the flat portion 1b. In FIGS. 1 to 4, 4 is a socket, and this socket 4 includes a socket body 4a and a pair of socket terminals 4b and 4c. The socket main body 4a has a roughly hollow cylindrical shape with a bottom, and a pair of terminal receiving grooves 4d and 4e extending from the inner peripheral surface to the inner bottom surface are provided at positions making 180 degrees from each other. The terminal receiving grooves 4d, 4e
Parts of the terminals 4b and 4c are housed in the terminals 4b and 4c. The tip side of one terminal 4b passes through a hole 4f provided at the bottom of the socket body 4a and is drawn out to the outside of the socket body 4a. The tip side of the other terminal 4c passes through a hole 4g provided at the bottom of the socket body 4a, and is inserted into the socket body 4.
It is led to a diode accommodating recess 4h provided at the bottom of a. The portions of the terminals 4b, 4c accommodated in the terminal receiving grooves 4d, 4e are curved convexly toward the axis of the socket body 4a. Diode housing recess 4 of the socket body 4a
A diode 3 is housed in the diode 3. One lead wire 3a of the diode 3 is connected to a socket terminal 4c, and the other lead wire 3b is drawn out of the socket body 4a. A light bulb support 1 is removably fitted onto the inner peripheral surface of the socket body 4a. In this fitted state, the pair of lead wires 2 of the light bulb 2
The tips of a and 2b are connected to the terminals 4b and 4 of the socket 4.
The terminals 4b and 4c are held between the terminals 4b and 4c and the flat parts 1a and 1b of the light bulb support 1, respectively, due to the elasticity of the terminals c. As a result, the lead wires 2a and 2b of the light bulb 2 are electrically connected to the terminals 4b and 4c of the socket 4, respectively. In FIGS. 3 and 4, 5 is a band-shaped electric wire, which is an example of the object to which the socket 4 is attached. The band-shaped electric wire 5 is composed of a highly flexible front-side band-shaped body 5a and a back-side band-shaped body 5b made of electrically insulating soft synthetic resin, and band-shaped conducting wires 5c and 5d. The strips 5a and 5b are attached to each other with conducting wires 5c and 5d sandwiched between them. Further, as shown in FIG. 3, the back side strip 5b is discontinuous in the length direction of the strip electric wire 5, so that the back side strip 5b is disposed at predetermined intervals on the strip electric wire 5. A conductor exposed portion 5e is formed in which the body 5b does not cover the conductors 5c and 5d. As shown in FIG. 4, the socket terminal 4
a and the lead wire 3b of the diode 3,
The part pulled out of the socket body 4a is
At the conducting wire exposed portion 5e, each conductor passes through the front side band 5a of the band-shaped electric wire 5, is bent outward, is overlapped with the conducting wires 5c and 5d, and is further soldered to the conducting wires 5c and 5d. As a result, the plurality of sockets 4 are fixed in one row to the band-shaped electric wire 5. Note that the soldering portion and its surroundings are coated with electrically insulating resin (not shown) to ensure insulation from the outside. Moreover, an adhesive material (not shown) for pasting the band-shaped electric wire 5 to a desired attachment location such as a wall surface is applied to the surface of the back side band-shaped body 5b and the resin. FIG. 5 is a circuit configuration diagram showing the electrical connection relationship of the devices shown in FIGS. They are attached to the band-shaped electric wire 5 so as to be connected in opposite directions. and,
The conductive wires 5c and 5d are output terminals 6a and 6 of the power supply 6.
b, respectively. Here, this power source 6 is designed to output a current of opposite polarity at every fixed period T, as shown in FIG. Next, the operation of this device will be explained. Now, if the output terminal 6a of the power supply 6 is on the positive side and the output terminal 6b is on the negative side, the odd-numbered diodes 3(1), 3(3), ..., 3(2n-1)
Only the even numbered diodes 3(2),
3(4),...,3(2n) does not conduct current, so
Odd numbered light bulbs 2(1), 2(3), ..., 2(2n-1)
Only the even numbered bulbs 2(2), 2(4),...
..., 2 (2n) is turned off. Conversely, if the output terminal 6a of the power supply 6 becomes the negative side and the output terminal 6b becomes the positive side, the even-numbered diode 3
Only (2), 3(4), ..., 3(2n) conducts current,
Odd numbered diodes 3(1), 3(3), ..., 3
(2n-1) does not conduct current, so the odd-numbered bulbs 2(1), 2(3), ..., 2(2n-1) go off,
Only the even-numbered light bulbs 2(2), 2(4), ..., 2(2n) are lit. Therefore, by changing the polarity of the current output from the power source 6 every cycle T, the odd-numbered light bulb 2
(1), 2(3), ..., 2(2n-1) and even-numbered light bulbs 2(2), 2(4), ..., 2(2n) alternately blink every period T. . Here, in this device, since the diode 3 is connected to each light bulb 2, the 2
It is possible to make each bulb 2 blink alternately using only the conductors 5c and 5d, but if the diode 3 is not connected to each bulb 2, the number of conductors connecting each bulb 2 to the power source is Unless there are at least three bulbs, each bulb 2 cannot be blinked alternately. Of course, the electrical connection shown in FIG. 5 can also be obtained by separately connecting a diode to a normal socket, but in that case the wiring work is time-consuming. However, according to the present invention, since the diode 3 is connected to the socket 4 in advance, the electrical connection relationship shown in FIG. Wiring work does not take much time (the socket 4 and diode 3 can be connected to the conductors 5c and 5d at the factory). Further, according to the present invention, since the diode 3 is connected to the socket 4 in such a way that the polarity with respect to the socket 4 cannot be changed, there is no directionality in attaching the light bulb support 1 to the socket 4.
At a construction site, the light bulb support 1 can be easily attached to the socket 4. Furthermore, since the diode 3 is housed within the socket body 4a, the diode 3 is mechanically protected and is not visible from the outside, resulting in an aesthetically pleasing appearance. In addition, in the example of FIGS. 3 and 4,
Although the socket 4 is attached to the band-shaped electric wire, in the present invention, the socket may be attached to something other than the band-shaped electric wire, such as a board. FIG. 7 is a circuit diagram showing another example of a light emitting device using the socket according to the embodiment of FIGS. 1 and 2. FIG. Conventionally, at least five or more power lines were required to blink the light emitting elements divided into four groups independently for each group, but with this device, only three power lines are required. , the four groups of light emitting devices (in this example, incandescent bulbs) can apparently blink independently. To explain this, the first power line A, the second power line B, and the third power line C have
A number of light bulbs 2 are connected via sockets 4 (not shown in FIG. 7). Here, the diodes 3 incorporated in these light bulbs 2 and sockets 4 are divided into four groups. In FIG. 7, in order to show which group each light bulb 2 and diode 3 belong to,
The light bulb 2 and diode 3 belonging to the first group are marked with a symbol (1), the light bulb 2 and the diode 3 which belong to the second group are marked with a symbol (2), and the third group is
The light bulb 2 and diode 3 belonging to
The light bulb 2 and the diode 3 belonging to the fourth group are each additionally marked with a symbol (4). The first power line A and the second power line B
A series connection body of the first group of light bulbs 2 (1) and diode 2 (1) and a series connection body of the second group of light bulbs 2 (2) and diode 2 (2) are provided between inserted in parallel. Here, the first group of diodes 3(1) and the second group of diodes 3(2)
are said to be in opposite directions. Similarly, between the third power line C and the first power line A, a third group of light bulbs 2(3) is connected.
and a series connection body of the light bulb 2 (4) and the diode 2 (4) of the fourth group are inserted in parallel. The third group of diodes 3(3) and the fourth group of diodes 3(4) are oriented in opposite directions. Now, in FIG. 7, when a negative voltage is applied to the first power line A and a positive voltage is applied to the second power line B, the first group of light bulbs 2
(1) lights up. Also, at this time, the second group of light bulbs 2 (2) are off. Conversely, if a positive voltage is applied to the first power line A and a negative voltage is applied to the second power line B, the first group of light bulbs 2(1) will turn off, and the second group of light bulbs will turn off. 2(2)
lights up. In addition, in these cases, the state of the third power line C is the same as that of the first group of bulbs 2.
(1) and the blinking of bulb 2 (2) of the second group are not affected. Similarly, connect the first power line A to the positive side,
When a negative voltage is applied to the third power line C, the third group of light bulbs 2(3) turns on, the fourth group of light bulbs 2(4) turns off, and the first When a negative voltage is applied to the power line A and a positive voltage is applied to the third power line C, the third group of light bulbs 2 (3) turns off, and the fourth group of light bulbs 2 (4) lights up. In these cases, the state of the second power supply line B does not affect the blinking of the third group of light bulbs 2(1) and the fourth group of light bulbs 2(4). In this light emitting device, the light bulbs 2(1) to 1(4) in each group can be blinked depending on the voltage applied to the power lines A, B, and C as described above. Table 1 summarizes the relationship between the voltage states of power lines A, B, and C and the light bulbs that are lit. Note that in this table, the x mark indicates don't care.

[Table] Now, as is clear from the above explanation, the first group of light bulbs 2 (1) and the second group of light bulbs 2
(2), and the third group of light bulbs 2 (3) and the fourth group of light bulbs 2 (4), when one is on, the other is off, and they cannot be lit at the same time. Can not. Therefore, in a true sense, it is not possible to make each group of light bulbs 2(1) to 1(4) blink independently. However, if the first group of light bulbs 2(1) and the second group of light bulbs 2(2) are blinked alternately at short time intervals, the afterimage effect will cause the light bulbs of the first group to appear different. It appears as if the light bulb 2 (1) and the light bulbs 2 (2) of the second group are lit at the same time. Similarly, if the third group of light bulbs 2 (3) and the fourth group of light bulbs 2 (4) are made to flash alternately at short time intervals of a certain amount,
Due to the afterimage effect, it appears as if the third group of light bulbs 2 (3) and the fourth group of light bulbs 2 (4) are lit at the same time. Therefore, by using such a method, the light bulbs 2(1) to 1(4) in each group can be made to apparently blink independently. For this reason,
For example, by apparently sequentially blinking the light bulbs 2 in each group in various manners,
It gives a visual effect as if light is flowing, and can significantly enhance the display effect and decorative effect. The present invention can also be applied to sockets to which non-polar light emitting elements other than incandescent light bulbs are connected. Further, in the above embodiment, the light bulb 2 is attached to the socket 4 via the light bulb support 1, but in the present invention, the light emitting element may be attached directly to the socket. Furthermore, in the present invention, the manner in which the light emitting element or the light emitting element support is attached to the socket does not necessarily have to be as in the above embodiments.
For example, it may be of a type in which the light emitting element or the light emitting element support is screwed into a socket. Effects of the Invention As described above, the light emitting element socket according to the present invention can (a) light up a non-polar light emitting element only when a current is passed in a predetermined direction; thereby, for example, To independently control a plurality of groups of light emitting elements using fewer power lines than before. (b) The light-emitting element and the diode can be handled as if they were one element, which is convenient to handle, and there is no need to perform wiring work for the diode to the light-emitting element each time. (c) Since there is no directionality when attaching the light emitting element to the socket, it becomes easy to attach the light emitting element to the socket at a construction site. (d) Since the diode is housed within the socket body, it is possible to mechanically protect the diode and prevent the diode from being exposed to the outside, which is also aesthetically pleasing. It is possible to obtain excellent effects such as

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of a light emitting device socket according to the present invention, FIG. 2 is a bottom view showing the embodiment, and FIG. 3 is a perspective view showing an example of a light emitting device using the embodiment. Fig. 4 is a cross-sectional view showing the same device, Fig. 5 is a circuit configuration diagram showing the electrical connections of the device, and Fig. 6 is a waveform diagram showing the waveform of the current output from the power supply in the circuit of Fig. 5. , FIG. 7 is a circuit diagram showing still another example of a light emitting device using a light emitting element socket according to the present invention. 2... Incandescent light bulb, 2a, 2b... Lead wire, 3
...Diode, 3a, 3b...Lead wire, 4...
...Socket, 4a...Socket body, 4b, 4c
...Socket terminal.

Claims (1)

[Claims for Utility Model Registration] A light-emitting element socket into which a non-polar light-emitting element can be inserted and removed, comprising a socket body and a pair of terminals attached to the socket body; In the light emitting element socket, in which both poles of the light emitting element are brought into contact with the pair of terminals when the light emitting element is attached, a diode is accommodated in the socket body, and the light emitting element is placed in contact with the socket body. One end of the diode is already electrically connected to one of the pair of terminals in such a manner that the polarity of the diode with respect to the terminal cannot be changed in a state before being mounted. A light-emitting element socket characterized by: