JP2012195137A - Led lighting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED lighting apparatus capable of changing brightness and color temperature with a simple structure.SOLUTION: The LED lighting apparatus includes an LED module 100 with an LED chip A120a having an input terminal 121a and an output terminal 122a as well as an input-side conductor pattern 111a and an output-side conductor pattern 111b on a mounting surface 102, a ring member 300 arranged to surround a periphery of the LED module 100 with a ring inner peripheral surface 320 and having a spring 200 with conductivity protruded from the ring inner peripheral surface 320, and a guide housing an edge of the ring inner peripheral surface 320 so as for the ring member 300 to turn around the LED module 100. When the spring 200 is arranged at a first position P10 as the ring member 300 turns along the guide, the spring comes in contact to conduct with the input-side conductor pattern 111a and the output-side conductor pattern 111b, the input terminal 121a and the output terminal 122a are short-circuited so as to turn off light of the LED chip A120a.

Description

  The present invention relates to, for example, a dimmable LED lighting device.

  In recent years, there has been a demand for highly efficient LED lighting devices because of the need for CO2 reduction. In particular, the LED lighting device is required to further save energy in changing the light color according to the usage environment (see Patent Document 1).

  In addition, there is a light bulb shaped LED provided with a ring member that interlocks with an internal gear and rotating the gear to change brightness and color (see Patent Document 2).

JP 2009-302008 (paragraph “0061” to paragraph “0063”, FIG. 10) Utility Model Registration No. 3162876

  In the conventional light bulb-shaped LED, it is necessary to add a dimming function for changing chromaticity and lightness / darkness after actually mounting, and there is a problem that it is difficult to reduce the size of the appliance. Also, when adding a dimming function, a switch and a remote control are required in addition to the fixtures. If they are attached, a lever and a light receiving unit are required, so the shape will be different from that of an incandescent bulb. There was a problem. Furthermore, the remote control for the bulb-shaped LED has a problem that it involves a risk of loss.

  Further, when the gear is rotated by the ring member, there is a problem that the gear rotates idly or becomes difficult to rotate due to the dimensional tolerance of the distance between the ring member and the gear.

  The present invention solves the above-described problems, and an object of the present invention is to provide an LED lighting device capable of reliably changing brightness and color temperature with a simple configuration.

  An LED lighting device according to the present invention has a mounting surface, an LED circuit board having a first LED element and a conductive pattern connected to the first LED element on the mounting surface, and an inner peripheral surface. And an annular ring portion disposed so as to surround the LED circuit board by the inner peripheral surface, and an edge portion of the inner peripheral surface so that the ring portion rotates around the LED circuit board. A guide part to be stored and a conductive part provided so as to protrude from the inner peripheral surface and in contact with the conductive pattern, and by rotating the ring part along the guide part, the conductive part is And a contact piece for switching the lighting pattern of the first LED element to a contact state or a non-contact state with the conductive pattern.

  An LED lighting device according to the present invention has a mounting surface, an LED circuit board having a first LED element and a conductive pattern connected to the first LED element on the mounting surface, and an inner peripheral surface. And an annular ring portion disposed so as to surround the LED circuit board by the inner peripheral surface, and an edge portion of the inner peripheral surface so that the ring portion rotates around the LED circuit board. A guide part to be stored and a conductive part provided so as to protrude from the inner peripheral surface and in contact with the conductive pattern, and by rotating the ring part along the guide part, the conductive part is An LED that can be switched to a contact state or a non-contact state with the conductive pattern and switch a lighting pattern of the first LED element, so that the brightness and color temperature can be reliably changed with a simple structure. It is possible to provide the illumination device.

1 is a perspective view of a light bulb shaped LED 1000 (LED lighting device) according to Embodiment 1. FIG. 2 is a side cross-sectional view of a light bulb shaped LED 1000 according to Embodiment 1. FIG. It is the elements on larger scale which expanded a part of bulb-type LED1000 which concerns on Embodiment 1. FIG. It is a top view (figure from the irradiation direction P1 side) in the state which has not attached the diffusion plate 400a in the lightbulb-shaped LED1000 which concerns on Embodiment 1. FIG. 1 is a circuit diagram of a light bulb shaped LED 1000 according to Embodiment 1. FIG. It is a figure which shows spotlight type LED1000a which concerns on Embodiment 2, (a) is a perspective view of spotlight type LED1000a, (b) is sectional drawing of spotlight type LED1000a. It is a figure which shows the connection state of LED module 100b of the lightbulb-shaped LED1000b which concerns on Embodiment 3. FIG. It is a figure which shows the connection state of LED module 100b of the lightbulb-shaped LED1000b which concerns on Embodiment 3. FIG.

Embodiment 1 FIG.
FIG. 1 is a perspective view of a light bulb shaped LED 1000 (LED lighting device) according to the present embodiment. FIG. 2 is a side sectional view of the light bulb shaped LED 1000 according to the present embodiment. FIG. 3 is a partially enlarged cross-sectional view of a part of the bulb-type LED 1000 according to the present embodiment. FIG. 4 is a plan view (a view from the irradiation direction P1 side) in a state where the diffusion plate 400a is not attached in the light bulb-shaped LED 1000 according to the present embodiment. The configuration of the light bulb shaped LED 1000 according to the present embodiment will be described with reference to FIGS.

  The light bulb shaped LED 1000 according to the present embodiment is a light bulb shaped LED lighting device. As shown in FIGS. 1 and 2, a light bulb-shaped LED 1000 (LED lighting device) includes a mounting base 450, a ring member 300 (ring part), a diffusion plate 400 a, a heat radiating part 600, a base part 800, and an attachment. LED module 100 attached to a base 450.

  Here, the mounting base 450 is connected to the irradiation direction P <b> 1 side of the heat radiation part 600. The mounting base 450 and the heat radiating portion 600 are formed of a metal such as aluminum. The mounting base 450 may be a part of the heat radiating unit 600, but will be described as a separate part in the present embodiment. However, the mounting base 450 and the heat dissipation part 600 may be integrally formed.

  As shown in FIG. 4, the LED module 100 includes four LED chips A (LED elements) 120, one LED chip B 130, a conductor pattern 110, and a connector 140 on the mounting surface 102 of the circular substrate 101. Has been implemented. The LED module 100 is an LED circuit board. LED chip A120 and LED chip B130 are LED elements (LED packages). LED chip A120 and LED chip B130 are LED elements having different color temperatures. For example, the LED chip A120 has a light bulb color (yellow) color temperature, and the LED chip B130 has a daylight color or daylight white (white) color temperature. Details of the LED module 100 will be described later.

  The mounting base 450 has a circular disk shape that is slightly larger than the LED module 100, and the LED module 100 is attached to the surface on the irradiation direction P1 side. A heat radiating portion 600 is provided on the opposite side of the surface of the mounting base 450 on the irradiation direction P <b> 1 side, and a base portion 800 is connected to an end of the heat radiating portion 600.

  A power source 500 (also referred to as a lighting device) that supplies power for lighting the LED module 100 is disposed inside the heat dissipating unit 600 and the base unit 800. The electric wire 510 connected to the power source 500 is connected to the connector 140 mounted on the LED module 100. Power is supplied from the power source 500 to the LED module 100 via the electric wire 510 and the connector 140. The heat radiating unit 600 (including the mounting base 450) radiates heat generated from the power source 500, the LED module 100, and the like.

  As shown in FIG. 1, the ring member 300 is attached to the mounting base 450 so as to be rotatable in the Q1 direction and the Q2 direction along the outer periphery of the mounting base 450. On the outer peripheral surface (mounting base outer peripheral surface 455) of the mounting base 450, for example, a light control number 330 such as “light control 1” or “light control 2” is printed. For example, the light control number “light control 1” 330a and the light control number “light control 2” 330b mean that the color temperature and brightness of the bulb-shaped LED 1000 are different. A mark 340 for indicating the dimming number 330 is disposed on the outer peripheral portion of the ring member 300 (ring outer peripheral portion 310).

  As shown in FIG. 1, unevenness is formed on the surface of the ring outer peripheral portion 310 of the ring member 300, and it is difficult to slip when an operator pinches the ring member 300 with a finger. An operator holds the ring outer peripheral portion 310 of the ring member 300 with his / her finger and rotates the ring member 300 in the Q1 direction or the Q2 direction, thereby matching the mark 340 of the ring member 300 with a desired dimming number 330. In the light bulb shaped LED 1000 according to the present embodiment, the color temperature and brightness of the light bulb shaped LED 1000 can be changed by the above-described work. That is, the light bulb shaped LED 1000 according to the present embodiment is an LED lighting device with a ring switch.

  As shown in FIGS. 2 and 3, the ring member 300 has an annular shape (ring shape) having a ring inner peripheral surface 320 (inner peripheral surface). The ring member 300 is disposed so as to surround the LED module 100 (LED circuit board) by the ring inner peripheral surface 320.

  As shown in FIG. 2, the ring member 300 includes a conductive spring 200 (contact piece) protruding from the ring inner peripheral surface 320. The spring 200 is in contact with the mounting surface 102 of the LED module 100.

  The spring 200 is connected to the ring inner peripheral surface 320 of the ring member 300. The spring 200 (contact piece) is made of a metal having conductivity and spring properties (elastic force). For example, the spring 200 is copper. The spring 200 is attached to the ring inner peripheral surface 320 of the ring member 300, and presses the conductor pattern 110 (see FIG. 4) provided on the mounting surface 102 of the LED module 100 by elasticity. The spring 200 is an elastic body having an elastic force that presses the mounting surface 102.

  As shown in FIGS. 2 and 3, the ring member 300 is a ring (ring, ring) having a T-shaped cross section in which the ring inner peripheral surface 320 is wider than the ring outer peripheral portion 310. The ring member 300 includes an edge portion (lower edge portion 321) on the base portion 800 side (P2 side) of the ring inner peripheral surface 320, and an edge portion (upper edge portion 322) on the irradiation direction P1 side of the ring inner peripheral surface 320. Is provided.

  A guide portion 451 that is an annular (ring-shaped) groove is formed around (outer periphery) the LED module 100 on the P1 side surface of the mounting base 450. The guide portion 451 is an annular (ring-shaped) groove portion that opens on the P1 side.

  The guide part 451 accommodates the lower edge part 321 of the ring member 300 so that the ring member 300 rotates around the LED module 100 (LED circuit board). That is, the lower edge portion 321 of the ring member 300 rotates around the LED module 100 by sliding the guide portion 451.

  The diffusion plate 400a is attached so as to cover the LED module 100 attached to the attachment base 450. The diffusion plate 400a is a hemispherical shape having a circular opening on the P2 side, and a peripheral portion forming the opening is a diffusion plate attachment portion 453 attached to the attachment base 450.

  In addition, the diffusion plate mounting portion 453 of the diffusion plate 400a includes an upper edge guide portion 452 for slidably storing the upper edge portion 322 of the ring member 300. The upper edge guide part 452 is an annular groove part corresponding to the guide part 451, and is an annular groove part opened on the base part 800 side (P2 side).

  Further, a part of the inner peripheral surface of the diffusion plate mounting portion 453 of the diffusion plate 400a extends to the surface on the P1 side of the mounting base 450. The diffusion plate 400 a is attached to the mounting base 450 by a portion (a stopper portion 700 described later) in which a part of the inner peripheral surface of the diffusion plate mounting portion 453 extends to the P1 side surface of the mounting base 450. By providing the stopper portion 700, the ring member 300 is prevented from rotating more than 360 degrees.

  That is, the lower edge 321 of the ring member 300 slides on the guide part 451, and the upper edge 322 of the ring member 300 slides on the upper edge guide part 452. Rotate.

  As shown in FIG. 2, when the ring member 300 is housed in the lower edge portion 321 and the upper edge portion 322 in the guide portion 451 and the upper edge guide portion 452, the inside of the ring inner peripheral surface 320 is open. is doing. This opening (inner opening 454) is a gap (opening, slit) formed in an annular shape (ring shape or ring shape) inside the ring inner peripheral surface 320 of the ring member 300.

  That is, the spring 200 protrudes from the inner opening 454 formed between the guide portion 451 of the mounting base 450 and the upper edge guide portion 452 and comes into contact with the mounting surface 102 of the LED module 100.

  As shown in FIGS. 3 and 4, a stopper portion 700 is provided in a part of the inner opening 454 of the mounting base 450. The stopper portion 700 is a portion extended to the surface on the P1 side of the mounting base 450 so that a part of the inner peripheral surface of the diffusion plate mounting portion 453 of the diffusion plate 400a closes the inner opening 454. By providing the stopper portion 700 in a part of the inner opening 454, when the spring 200 abuts against the stopper portion 700, the rotation of the ring member 300 is stopped (the state of the spring 200 described by the dotted line in FIG. 3). ). For example, when the spring 200 rotates to reach the position P31 or P32, the rotation is stopped by the stopper portion 700 (see FIG. 4). Thereby, the spring 200 (ring member 300) can be prevented from rotating 360 degrees or more.

  4 is a front view (a view from the irradiation direction P1 side) in a state in which the diffusion plate 400a is removed from the light bulb shaped LED 1000 in the state of FIG.

  The LED module 100 includes a substrate 101, five LED chips (LED package, LED element) mounted on the mounting surface 102 of the substrate 101, and a connector 140 mounted on the substrate 101. Electric power is supplied to the LED module 100 from the power source 500 via the electric wire 510 (FIG. 2) connected to the connector 140.

  LED chips A120 (120a, 120b, 120c, 120d) are LED chips having the same color temperature (for example, light bulb color (yellow)), and are arranged in a circle at equal intervals in the vicinity of the peripheral edge of the substrate 101. The LED chip B130 is an LED chip having a color temperature different from that of the LED chips A 120a, 120b, 120c, and 120d (for example, daylight color or daylight white (fluorescent lamp color) (white)). The LED chip B130 is disposed in the vicinity of the center portion of the substrate 101. That is, the LED chip B130 is arranged at the center, and the four LED chips A120 having different color temperatures from the LED chip B130 are arranged around the LED chip B130 in a circular shape at equal intervals.

  Here, it is assumed that the configurations of the LED chip A120 (120a, 120b, 120c, 120d) and the LED chip B130 are the same. Each of LED chip A120 and LED chip B130 has an input terminal and an output terminal. The conductor pattern 110 is connected to each input terminal and output terminal of the LED chip A120 (120a, 120b, 120c, 120d) and the LED chip B130. The conductor pattern 110 is connected in series in the order of the connector 140 (power source 500), the LED chip A 120a, the LED chip B 130, the LED chip A 120d, the LED chip A 120c, the LED chip A 120b, and the connector 140 (power source 500).

  FIG. 5 is a circuit diagram of the light bulb shaped LED 1000 according to the present embodiment. As shown in FIG. 5, in the light bulb-shaped LED 1000, a connector 140 (power source 500), an LED chip A 120a, an LED chip B 130, an LED chip A 120d, an LED chip A 120c, an LED chip A 120b, and a connector 140 (power source 500) are arranged in series. It is connected.

  Here, the LED chip A 120a will be described as an example of the first LED element. As shown in FIG. 4, the LED chip A 120a (an example of a first LED element) has an input terminal 121a (an example of a first input terminal) and an output terminal 122a (an example of a first output terminal). The LED module 100 includes an input-side conductor pattern 111a (an example of a first input-side conductor pattern) connected to the input terminal 121a and an output-side conductor pattern 111b (first output-side) connected to the output terminal 122a. An example of a conductor pattern).

  That is, the input terminals and the output terminals of the LED chip A120 and the LED chip B130 are connected to the conductor pattern, respectively, and are connected in series as a whole.

  As described above, the spring 200 is disposed at a predetermined position on the mounting surface 102 as the ring member 300 rotates along the guide portion 451. When the ring member 300 is disposed at the first position P10 of the mounting surface 102 by the ring member 300 rotating along the guide portion 451, the spring 200 contacts the input side conductor pattern 111a and the output side conductor pattern 111b. And the spring 200 short-circuits between the input terminal 121a and the output terminal 122a by electrically connecting the input side conductor pattern 111a and the output side conductor pattern 111b. As a result, the LED chip A 120a is turned off.

  As shown in FIG. 4, the interval of the conductor pattern 110 to be connected to short-circuit the LED chip A 120a is L3. Further, the interval between the conductor patterns 110 to be connected to short-circuit the LED chip B130 is L2. When the width of the spring 200 is L1, in order to reliably short-circuit the LED chip A120 and the LED chip B130, it is necessary to be configured to satisfy L1> L2 and L1> L3.

  In FIG. 4, the LED chips A 120 b, 120 c, and 120 d on which fine lattice hatching is shown show a state of being lit at the first color temperature (bulb color (yellow)). The LED chip B <b> 130 on which coarse lattice hatching is shown shows a state of being lit at a second color temperature (daylight color or daylight white (white)) different from the first color temperature. The LED chip A120a without hatching indicates a state where the LED chip A120a is turned off.

  As shown in FIG. 4, the case where the spring 200 is disposed at the first position P10 is, for example, “light control 1”. When the mark 340 of the ring member 300 of the bulb-shaped LED 1000 is set to the dimming number “dimming 1” 330a, the dimming of the bulb-shaped LED 1000 is “LED chip A 120a is turned off, LED chips A 120b, 120c, 120d”. LED chip B130 is turned on. The state of “light control 1” is, for example, daylight white or daylight color. In the present embodiment, it is assumed that the state of “light control 1” is daylight white.

  In the “dimming 1” state, as shown in FIG. 5, the spring 200 short-circuits the terminals on both sides of the LED chip A 120a. That is, when the ring member 300 rotates, the connection of the LED module 100 (bulb-shaped LED 1000) changes, and when the connection of the LED module 100 changes, a part of the LED chips connected in series are short-circuited and turned off. That is, as shown in FIG. 5, the spring 200 moves in the direction of the arrow as the ring member 300 rotates, thereby short-circuiting the LED chip A120 and the LED chip B130. Thereby, the LED chip to light changes and the color temperature and brightness of the light bulb shaped LED 1000 change.

  Next, the ring member 300 is rotated in the Q1 direction from the state where the spring 200 is disposed at the first position P10, and the spring 200 is set so as to be disposed at the second position P20. The spring 200 disposed at the second position P20 is indicated by a dotted line. A state in which the spring 200 is disposed at the second position P20 is, for example, “light control 2”.

  The LED chip B130 (an example of a second LED element) has an input terminal 131 (an example of a second input terminal) and an output terminal 132 (an example of a second output terminal). The LED module 100 includes an input-side conductor pattern 113a (an example of a second input-side conductor pattern) connected to the input terminal 131 and an output-side conductor pattern 113b (second output side) connected to the output terminal 132. An example of a conductor pattern).

  As shown in FIG. 4, the spring 200 is disposed at the second position P <b> 20 of the mounting surface 102 as the ring member 300 rotates along the guide 451 portion. In FIG. 4, the spring 200 disposed at the second position P20 is indicated by a dotted line. The spring 200 disposed at the second position P20 contacts the input side conductor pattern 113a and the output side conductor pattern 113b. And the spring 200 arrange | positioned in the 2nd position P20 short-circuits between the input terminal 131 and the output terminal 132 by electrically connecting the input side conductor pattern 113a and the output side conductor pattern 113b. Thereby, the LED chip B130 is turned off.

  That is, when the mark 340 of the ring member 300 of the bulb-shaped LED 1000 is set to the dimming number “dimming 2” 330b, the dimming of the bulb-shaped LED 1000 is “LED chips A 120a, 120b, 120c, 120d are lit. LED chip B130 is turned off. That is, as shown in FIG. 5, the spring 200 (the spring 200 indicated by the dotted line) arranged at the second position P20 shorts the terminals on both sides of the LED chip B130. In the “dimming 2” state, the bulb-shaped LED 1000 is in a bulb color state.

  As described above, in the light bulb shaped LED 1000 of the present embodiment, the operator selects “light control 1: daylight white state” and “light control 2: light bulb color state” by rotating the ring member 300. be able to.

  In the light bulb-shaped LED 1000 according to the present embodiment, the LED module 100 in which four light bulb colored LED chips A120 and one daylight color or day white LED chip B130 are mounted is used. Two light color switching methods were realized: “Light control 2: Light bulb color state”. Further, the ring member 300 was provided with one spring 200. However, for example, various light colors can be created by changing the type of color temperature of the LED chip, the arrangement of the LED chips, the number of springs 200, the arrangement of the springs 200, and the like.

  The ring member 300 can be rotated on the outer periphery of the light bulb-shaped LED 1000 by an operator, and is temporarily stopped, for example, at a place where an LED chip to be turned off exists (a place where both sides of the LED chip to be turned off can be short-circuited). That is, when the ring member 300 rotates, a feeling of moderation is provided, and a state in which the spring 200 (contact piece) is in contact with the conductor pattern 110 and a state in which the spring 200 is not in contact with the conductor pattern 110 are shown to the operator. A state that can be discriminated by touch or the like. Alternatively, the state where the spring 200 (contact piece) short-circuits both sides of the LED chip (120, 130) and the state where the spring 200 does not short-circuit both sides of the LED chip (120, 130) Is in a state that can be discriminated by the touch of the finger.

  This is because, for example, a protrusion is provided on the lower edge portion 321 corresponding to the position of the spring 200 of the ring member 300, and the protrusion is formed when the spring 200 (contact piece) short-circuits both sides of the LED chip (120, 130). Can be realized by fitting into a recess formed in the bottom of the guide portion 451. The protrusion and the recess can be easily fitted or can be easily released by designing the depth to be appropriately shallow. Thereby, it becomes a moderation feeling when an operator rotates the ring member 300, and the convenience of the ring member 300 improves.

  Further, there is a case where the spring 200 is in a state of being in contact with the conductor pattern 110, that is, a state of being in a state of being short-circuited on both sides of the LED chip (120, 130). In such a state, the LED chip is turned on or off without the operator's intention, and the contact resistance between the conductor pattern 110 and the spring 200 is increased, which may cause abnormal overheating. Even in such a case, by providing a sense of moderation when the ring member 300 rotates, the ring member 300 is surely rotated to a predetermined position, so that it is possible to determine whether or not the spring 200 is in contact with the pattern. It is possible to prevent a state (that is, a state where the both sides of the LED chip (120, 130) are short-circuited), and safety is also improved.

  As described above, in the light bulb-shaped LED 1000 according to the present embodiment, after the user attaches the light bulb-shaped LED 1000 (LED lighting device) to the ceiling or the like, the ring member 300 can be rotated either left or right. Further, the dimming number 330 is printed on the outer periphery of the ring member 300, and the mark 340 of the ring member 300 can be pointed, so that the current state can be confirmed. Since the stopper portion 700 is provided, the ring member 300 can be prevented from rotating more than 360 degrees.

  In the light bulb-shaped LED 1000 according to the present embodiment, by rotating the ring member 300, the position of the spring 200 moves, and contacts with the conductor pattern 110 of the LED module 100 to short-circuit both terminals of the LED chip and turn off the light. . Thus, the movement of the position of the spring 200 serves as a substitute for the switch, so that the appearance of the bulb-shaped LED 1000 can be brought close to an incandescent bulb. In other words, the light bulb-shaped LED 1000 does not require a switch or a remote controller, and can adjust the dimming and chromaticity without increasing the size of the instrument. Moreover, after actually attaching the light bulb-shaped LED 1000, the light suitable for the surrounding environment can be adjusted only by changing the connection pattern of the LED module 100.

Embodiment 2. FIG.
In Embodiment 1, the bulb-shaped LED 1000 has been described. In the present embodiment, for example, a spotlight-type LED 1000a that is a lamp for a spotlight will be described as an example of an LED lighting device.

  6A and 6B are diagrams showing the spotlight-type LED 1000a according to the present embodiment. FIG. 6A is a perspective view of the spotlight-type LED 1000a, and FIG. 6B is a cross-sectional view of the spotlight-type LED 1000a. 6A is a diagram corresponding to FIG. 1, and FIG. 6B is a diagram corresponding to FIG.

  In FIG. 6, the same components as those described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. In the case of the spotlight (spotlight type LED 1000a) shown in FIG. 6, the diffusion plate 400a of the light bulb type LED 1000 becomes the LED cover 400b, and the base part 800 is eliminated. Other configurations are the same as those of the bulb-shaped LED 1000.

  As shown in FIG. 6, the same configuration as that of the first embodiment can be applied to the spotlight-type LED 1000a. Thereby, after mounting spotlight type LED1000a to an instrument, a user can change color temperature and brightness easily.

Embodiment 3 FIG.
FIG. 7 is a diagram showing a connection state of the LED module 100b of the light bulb shaped LED 1000b according to the present embodiment. FIG. 8 is a diagram showing a connection state of the LED module 100b of the light bulb shaped LED 1000b according to the present embodiment. 7 and 8 are schematic diagrams for explaining the connection state of the conductor pattern 110b, the LED chip B130, the LED chip C150, and the springs 200a and 200b in the LED module 100b according to the present embodiment. Is not shown. Further, the same components as those described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIGS. 7 and 8, in the present embodiment, the LED module 100 includes six LED chips C150 (150a, 150b, 150c, 150d, 150e, 150f) having the same color temperature, and an LED chip C150. LED chip B130 having a color temperature different from the color temperature is mounted.

  The LED chip B <b> 130 is disposed near the center of the mounting surface 102, and the six LED chips C <b> 150 are disposed in a circle near the peripheral edge of the mounting surface 102. Further, the six LED chips C150 are arranged in a circle at equal intervals. Therefore, the LED chip C150a and the LED chip C150d are in positions facing each other, the LED chip C150b and the LED chip C150e are in positions facing each other, and the LED chip C150c and the LED chip C150f are facing each other.

  The ring member 300 includes two springs 200. The two springs 200 (200a, 200b) are provided at positions facing each other on the ring inner peripheral surface 320.

  Similarly to the first embodiment, the conductor pattern 110b is connected in series in the order of the connector 140, the LED chip C150e, the LED chip C150f, the LED chip C150a, the LED chip C150b, the LED chip C150c, the LED chip C150d, and the connector 140. It is formed so that.

  The LED module 100b is formed so that the spring 200 and the conductor pattern 110 do not contact (conduct) when the ring member 300 rotates and the spring 200 is disposed at the positions of the LED chips C150c, 150e, and 150f. Has been. That is, even when the spring 200 is disposed at the positions of the LED chips C150c, 150e, and 150f, the LED chips C150c, 150e, and 150f are formed so as not to be turned off. Here, when it is described as the spring 200, both or either one of the springs 200a and 200b is shown.

  Further, in the LED module 100b, when the ring member 300 is rotated and the spring 200 is disposed at the positions of the LED chips C150a, 150b, and 150d, as described in the first embodiment, the LED chips C150a, 150b, and 150d. Both sides are short-circuited to be extinguished.

  Since the LED module 100b of the present embodiment is formed so that the spring 200 does not reach the conductor patterns 110 on both sides of the LED chips C150c, 150e, 150f, the spring 200 is positioned at the positions of the LED chips C150c, 150e, 150f. Although the LED chips C150a, 150b, and 150d cannot be turned off even if arranged, the LED chips C150a, 150b, and 150d are formed so as to be turned off when the spring 200 is arranged at a predetermined position.

  The LED chip B130 disposed in the center is formed so that the spring 200 is electrically connected to the conductor pattern 110b on both sides of the LED chip B130, as in the first embodiment. Here, for example, it is assumed that the LED chip B130 is an LED chip having a daylight color (white) color temperature, and the LED chip C150 is an LED chip having a light bulb color (yellow) color temperature.

  As shown in FIG. 7A, when the spring 200a is disposed at the position of the LED chip C150a, the spring 200b facing the spring 200a is disposed at the position of the LED chip C150d facing the LED chip C150a. As described above, since the LED chips C150a and 150d are formed with the conductor pattern 110b so as to be turned off, in the state of FIG. 7A, the LED chips C150a and 150d are turned off in a “two-lamp-off state”. is there. In this state, since the two light bulb-colored LED chips C150 are turned off, the light bulb-shaped LED 1000b can have a color temperature close to daylight.

  When the ring member 300 is rotated in the Q1 direction from the state of FIG. 7A and the spring 200a is disposed at the position of the LED chip C150b, the spring 200b facing the spring 200a becomes the LED chip facing the LED chip C150b. It arrange | positions in the position of C150e (FIG.7 (b)). As described above, the conductor pattern 110b is formed so that the LED chip C150b is extinguished, and the LED chip C150e is formed so that the conductor patterns 110b on both sides do not reach the spring 200. Therefore, in the state of FIG. 7B, only the LED chip C150b is turned off, ie, “one lamp is turned off”. In this state, since one bulb-colored LED chip C150 is extinguished, the bulb-shaped LED 1000b can have a daylight white color temperature.

  When the ring member 300 is further rotated in the Q1 direction from the state of FIG. 7B and the spring 200a is disposed at the position P50 (see FIG. 8C), the spring 200b opposite to the spring 200a is LED. It arrange | positions in the position P51 which short-circuits both sides of chip | tip B130 (FIG.8 (c)). As described above, the conductor pattern 110b is formed so that the LED chip B130 is turned off. Further, even if the spring 200 is arranged at the position of P50, there is no corresponding LED chip, and the spring 200 does not conduct. Therefore, in the state of FIG. 8C, only the LED chip B130 is turned off. Since the daylight color LED chip B130 is turned off, the light bulb shaped LED 1000b is in the “bulb color state” in the state of FIG.

  When the ring member 300 is further rotated in the Q1 direction from the state of FIG. 8C and the spring 200a is disposed at the position of the LED chip C150c, the spring 200b facing the spring 200a is the LED facing the LED chip C150c. It is arranged at the position of the chip C150f (FIG. 8D). As described above, both the LED chip C150c and the LED chip C150f are formed so that the spring 200 does not reach the conductor pattern 110b. Therefore, the conductor pattern 110b is formed so that neither the LED chip C150c nor the LED chip C150f is turned off. Therefore, the state of FIG. 8D is an “all light state” in which all the LED chips are lit. In this state, since all the LED chips are lit, the light bulb-shaped LED 1000b can have a daylight white color temperature that is slightly yellowish than the state of FIG. 7B.

  In this embodiment, the LED module 100 on which six light bulb colored LED chips C150 and one daylight color LED chip B130 are mounted is used. Four types of dimming states, “state” and “all-light state”, were realized.

  In the first embodiment, the ring member 300 includes one spring 200. However, in the present embodiment, the ring member 300 includes two springs 200 at positions facing the ring inner peripheral surface 320. .

  As described above, in the dimming method of the LED lighting device described in the first to third embodiments, by changing the type of color temperature of the LED chip, the arrangement of the LED chips, the number of springs 200, the arrangement of the springs 200, and the like. Various dimming states can be created.

  Although the first to third embodiments have been described above, two of these embodiments may be combined. Alternatively, one of these embodiments may be partially implemented. Alternatively, two of these embodiments may be partially implemented. Or you may implement combining these three embodiments partially among these.

  100, 100b LED module, 101 substrate, 102 mounting surface, 110, 110b conductor pattern, 111a input side conductor pattern, 111b output side conductor pattern, 113a input side conductor pattern, 113b output side conductor pattern, 120 LED chip A, 121a input Terminal, 122a Output terminal, 130 LED chip B, 131 Input terminal, 132 Output terminal, 140 Connector, 150 LED chip C, 200, 200a, 200b Spring, 300 Ring member, 310 Ring outer peripheral part, 320 Ring inner peripheral surface, 321 Lower edge portion, 322 Upper edge portion, 330 Dimming number, 330a Dimming number “Dimming 1”, 330b Dimming number “Dimming 2”, 340 mark, 400a Diffuser plate, 400b LED cover, 450 Mounting base, 451 Guide part, 4 2 Upper edge guide part, 453 Diffuser plate attachment part, 454 Inner opening part, 455 Mounting base outer peripheral surface, 500 power supply, 510 electric wire, 600, 600a Heat radiation part, 700 stopper part, 800 base part, 1000, 1000b Light bulb type LED 1000a Spotlight LED.

Claims (5)

An LED circuit board having a mounting surface and having a first LED element and a conductive pattern connected to the first LED element on the mounting surface;
An annular ring portion having an inner peripheral surface and disposed so as to surround the LED circuit board by the inner peripheral surface;
A guide portion that houses an edge of the inner peripheral surface so that the ring portion rotates around the LED circuit board;
The conductive part is provided so as to protrude from the inner peripheral surface, and has a conductive part in contact with the conductive pattern, and the conductive part is in contact with the conductive pattern by rotating the ring part along the guide part. Or a contact piece that switches to a non-contact state and switches a lighting pattern of the first LED element. The first LED terminal has a first input terminal and a first output terminal;
The LED circuit board includes a first input-side conductor pattern connected to the first input terminal and a first output-side conductor pattern connected to the first output terminal on the mounting surface,
The contact piece has the first input-side conductor pattern and the first output-side conductor when the ring part is disposed at the first position of the mounting surface by rotating along the guide part. A short circuit between the first input terminal and the first output terminal by contacting the first input side conductor pattern and the first output side conductor pattern, The LED lighting device according to claim 1, wherein the first LED element is turned off. The LED circuit board further includes:
A second LED element having a color temperature different from the color temperature of the first LED element, the second LED element having a second input terminal and a second output terminal; and the second input terminal. And a second input side conductor pattern connected to the second output terminal and a second output side conductor pattern connected to the second output terminal on the mounting surface,
The contact piece is
When the ring portion is rotated along the guide portion and disposed at the second position of the mounting surface, the ring portion contacts the second input side conductor pattern and the second output side conductor pattern. The second LED element is short-circuited between the second input terminal and the second output terminal by conducting the second input conductor pattern and the second output conductor pattern. The LED lighting device according to claim 2, wherein the LED lighting device is turned off. A plurality of the first LED elements;
The LED circuit board has a disc shape, the second LED element is disposed in the vicinity of the center of the disc shape, and each first LED element of the plurality of first LED elements has a disc-shaped peripheral edge. The LED lighting device according to claim 3, wherein the LED lighting device is disposed in the vicinity.   The LED lighting device according to claim 1, wherein the contact piece is an elastic body having an elastic force that presses the mounting surface.

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