JP2009059486A - Light-emitting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light-emitting device in which coupling of an assembly block to other assembly block is facilitated and coupling strength is improved. <P>SOLUTION: The light-emitting device has a plurality of assembly blocks which can be assembled in three-dimensional form by being mutually coupled and emit light respectively. Each of the assembly blocks is provided with a projected coupling part 6, a recessed coupling part 7, and an electrical connection part and two assembly blocks are mutually coupled by inserting the projected coupling part 6 of the other assembly block into the recessed coupling part 7, and the mutual electrical connection parts are electrically connected, and a locking mechanism in which, when the projected coupling part 6 is inserted in the recessed coupling part 7, coupling of the both is automatically locked, is installed in the projected coupling part 6 and the recessed coupling part 7. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a light emitting device.

  Patent Document 1 discloses a light-emitting device that performs illumination light emission by attaching a plurality of light emitters such as LEDs to a wall surface of a building and blinking each light emitter at a predetermined light emission timing. The light emitting device of Patent Document 1 fixes a plurality of light emitters containing LEDs to an attachment base and connects them with a flexible cable to form a light emitting unit and further connect the light emitting units to each other. It is comprised by.

Japanese Patent Laying-Open No. 2005-32649 (FIGS. 2 and 3)

  However, when the light emitting device disclosed in Patent Document 1 is provided on the wall surface of the exhibition space, a plurality of light emitters are screwed to the mounting base, the light emitters are connected by a flexible cable, Furthermore, a plurality of light emitting units must be fixed and connected. That is, it is difficult to connect a plurality of light emitters in a free shape according to the exhibition space. Moreover, since the said light-emitting body is connected via the flexible cable, while it takes an effort for the electrical connection between light-emitting bodies, it cannot connect light-emitting bodies with reliable intensity | strength.

  The present invention has been made in view of such a problem, and an object of the present invention is to improve the connection strength while facilitating the connection work of each assembly block to another assembly block. A light-emitting device is to be provided.

  In order to solve the above-described problems, the present invention can be assembled into a three-dimensional shape by being connected to each other, and each of the assembly blocks includes a convex connection portion and a light-emitting device having a plurality of assembly blocks each emitting light. Containing a concave coupling part and an electrical connection part, and fitting the convex coupling part of another assembly block to the concave coupling part, the two assembly blocks are coupled to each other, and the electrical connection parts are electrically connected to each other, thereby convex coupling. The part and the concave connection part are provided with a lock mechanism that automatically locks the connection between the convex connection part and the concave connection part when the convex connection part is fitted into the concave connection part.

  When configured in this manner, the two assembly blocks can be coupled and electrically connected by simply fitting the convex coupling portion to the concave coupling portion. Further, when the assembly blocks are connected, the connecting portions of both connected blocks are locked by the lock mechanism, so that the connection of both assembly blocks is ensured. Moreover, since both the connection parts are locked only by fitting the convex connection part into the concave connection part, both the connection parts can be easily fixed, and the fixing work does not take time.

  Further, in addition to the above-mentioned invention, the other invention further includes a convex connecting portion having a convex portion, and the concave connecting portion is configured by a cover member having a through hole into which the convex portion is fitted. A lock ring having a first engaging portion provided on the convex portion and a second engaging portion that is disposed inside the cover member and engages with the first engaging portion of the convex portion that is inserted into the through hole. It is equipped with.

  In this case, when the convex portion is inserted into the through hole, the first engaging portion and the second engaging portion are engaged, and the convex connecting portion and the concave connecting portion are locked. Therefore, both connecting portions are securely fixed.

  Furthermore, in addition to the above-described invention, in another aspect of the invention, the first engagement portion protrudes from the upper end portion of the convex portion toward the outer circumferential direction or in the circumferential direction, and the second engagement portion is locked. The lock ring has a form protruding from the inner peripheral surface of the ring in the circumferential direction or in the circumferential direction and in the opposite direction to the circumferential direction, and the lock ring is urged in the tangential direction by the urging member The lock ring resists the urging force of the urging member because the second engaging portion comes into contact with the first engaging portion when the convex portion is inserted into the through hole. Then, when the first engaging portion rotates to the position over the second engaging portion, the convex portion fits into the depth of the through hole, and then the first engaging portion is moved by the urging force of the urging member. The two engaging portions rotate in the direction opposite to the circumferential direction, engage with the first engaging portion, and connect the two assembly blocks. It is intended to be locked.

  When configured in this manner, the first engaging portion and the second engaging portion can be engaged by using the urging force of the urging member. Therefore, the convex connection part and the concave connection part can be reliably locked with a simple configuration.

  Further, in addition to the above-described invention, in another invention, the planar shape of the convex portion has a form in which at least one of the vicinity of the square or four corners of the square is cut out inward. The first engaging portion is provided in the vicinity of the four corners of the square, and the second engaging portion is provided inside the lock ring so as to correspond to the first engaging portion. is there. When configured in this way, the two assembly blocks can be locked at four locations. Therefore, the two assembly blocks can be locked in a stable state.

  According to another invention, in addition to the above-described invention, a tapered surface is formed on one or both of the surface of the first engaging portion and the surface and the back surface of the second engaging portion. Has been.

  When comprised in this way, a 1st engaging part and a 2nd engaging part contact in a taper surface. For this reason, when the convex coupling portion is fitted into the concave coupling portion, the second engaging portion slides smoothly in the circumferential direction by the pressing force. Therefore, the locking operation can be performed reliably and smoothly.

  According to another invention, in addition to the above-described invention, the cover member has a box shape having four side walls, and each side wall is provided with a notch for exposing the lock ring. It is.

  In the case of such a configuration, the engagement state can be released by rotating the lock ring in the direction opposite to the urging direction via the notch. Therefore, it is possible to easily unlock the convex connection portion and the concave connection portion, and it is possible to remove the two connected assembly blocks.

  Furthermore, in another invention, in addition to the above-described invention, the assembly block further includes a first connection portion and a second connection portion as electrical connection portions, and the convex connection portion and the concave connection of the other assembly block. When the parts are connected, the first connection part and the second connection part of another assembly block are automatically electrically connected.

  In such a configuration, when two assembly blocks are connected, it is possible to automatically and reliably perform electrical connection in the connecting direction.

  Further, in addition to the above-mentioned invention, in another invention, the assembly block further includes a housing having a cube outer shape or an outer shape obtained by connecting a plurality of cubes, and each cube is arranged in the housing. The number of the light emitting elements is equal to or an integral multiple of the number of the light emitting elements.

  When configured in this way, it is possible to connect assembling blocks having light emitting elements equal to or an integral multiple of the number of cubes as one unit. Therefore, it is possible to assemble a light-emitting device having a free shape by connecting a plurality of assembly blocks having this configuration.

  According to the present invention, it is possible to improve the connection strength while facilitating the connection work of an assembly block to another assembly block.

(First embodiment)
Hereinafter, a light-emitting device 1 according to a first embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a light emitting device 1 according to a first embodiment of the present invention. FIG. 2 is a side view showing the configuration of the assembly block 2 constituting the light emitter 3. FIG. 3 is a side view showing a state in which two assembly blocks 2 are vertically connected. FIG. 4 is an exploded perspective view showing the configuration of the assembly block 2. FIG. 5 is an exploded perspective view showing the configuration of the convex coupling portion 6 and the concave coupling portion 7 before the assembly block 2 is coupled. FIG. 6 is a perspective view showing the configuration of the convex coupling portion 6 and the concave coupling portion 7 after the assembly block 2 is coupled.

  As shown in FIG. 1, the light-emitting device 1 includes a light-emitting body 3 formed in a tower shape by stacking a plurality of assembly blocks 2, supplies power to the light-emitting body 3, and emits light from the light-emitting body 3. And a computer terminal 4 as a controller to be controlled. The light emitter 3 and the computer terminal 4 are connected by a flat cable 5. The flat cable 5 has a power supply line for supplying power from the computer terminal 4 to the light emitter 3 and a communication line for transmitting communication data between the computer terminal 4 and the light emitter 3.

  As shown in FIG. 2, each assembly block 2 has one LED (Light Emitting Diode) element (a type of light emitting element) 51, and the LED element 51 is based on luminance data received from the computer terminal 4. Emits light. The LED element 51 has a red light emitter, a green light emitter, and a blue light emitter that can emit light by mutually different control (for example, PWM (Pulse Width Modulation) control), and can emit light in full color. The LED element 51 may be capable of emitting light in a single color such as red or blue.

  As shown in FIG. 2, the assembly block 2 has a substantially cubic outer shape. And as shown in FIG. 3, the assembly block 2 forms a tower shape by connecting up and down. The two assembly blocks 2 are connected by fitting the convex connection portion 6 of one assembly block 2 into the concave connection portion 7 of the other assembly block 2. The convex connection portion 6 is provided above the assembly block 2 in FIG. 2, and the concave connection portion 7 is provided below the assembly block 2 in FIG. 2. When the assembly block 2 is connected vertically, the connection is locked by a lock mechanism described later.

  As shown in FIGS. 2 and 4, the assembly block 2 has a single body 10 serving as a resin casing. The single body 10 includes an intermediate cover 12, a convex cover 14, and a concave cover 16. The intermediate cover 12 has a substantially cubic outer shape, and has a through-hole having a rectangular cross section that penetrates from the upper surface to the lower surface. For this reason, the intermediate cover 12 has a frame structure including four side surfaces. Columnar portions 18 having a cylindrical shape are provided at the four corners inside the intermediate cover 12. The columnar portion 18 is provided from the vicinity of the upper end portion of the intermediate cover 12 to the vicinity of the lower end portion thereof, and screw holes 18a are formed in the upper end surface and the lower end surface thereof.

  The convex cover 14 constitutes a part of the convex coupling portion 6 and is disposed on the upper side of the intermediate cover 12 in FIG. The concave cover 16 constitutes a part of the concave coupling portion 7 and is disposed below the intermediate cover 12 in FIG. As shown in FIG. 4, the convex cover 14 and the concave cover 16 are provided with circular holes 14a and 16a at their four corners, respectively. The convex cover 14 and the concave cover 16 are integrated with the intermediate cover 12 by inserting a screw 20 through the circular holes 14 a and 16 a and screwing the screw 20 into the screw hole 18 a of the columnar portion 18.

  As shown in FIG. 4, the convex cover 14 includes a rectangular plate-like portion 22 having an outer shape of the same size as the outer shape of the intermediate cover 12 and a convex portion 24 protruding upward from the upper surface thereof. In addition, a rectangular through hole 26 penetrating vertically is formed inside the convex portion 24. Thus, the convex portion 24 constitutes four wall portions 28 surrounding each side surface of the through hole 26. On the outer peripheral surface of each wall portion 28 in the vicinity of each corner portion, a slope portion 29 is formed in which the thickness of the wall portion 28 becomes thinner toward the corner portion. A first engagement portion 30 is provided above the slope portion 29 and in the vicinity of the corner portion on one end side of each wall portion 28. The first engaging portion 30 is formed in a form that protrudes outward near the corner portion of the wall portion 28 by forming the slope portion 29. Further, a tapered surface 32 is formed on the upper end surface of the first engaging portion 30 so as to be connected to the upper end surface of the wall portion 28. The tapered surface 32 is formed so that the area increases from the center side of the wall portion 28 toward the corner portion. Such protrusion of the first engaging portion 30 is achieved by the formation of the slope portion 29, and the tip of the first engaging portion 30 is the same as or slightly lower than the position when the notched wall portion 28 is extended. Is set to Further, a through hole 31 having an outer shape substantially the same as that of the first engagement portion 30 is formed below the first engagement portion 30 in the plate-like portion 22 (see FIG. 5). The slope 29 is formed so as to extend from the base of the wall 28 to a predetermined height and extends into the through hole 31.

  The concave cover 16 has a rectangular plate-shaped portion 34 having an outer shape of the same size as the outer shape of the intermediate cover 12, a wall portion 35 rising from the outer periphery of the plate-shaped portion 34, and corners erected at the four corners of the plate-shaped portion 34. And a wall portion 36. Each square wall portion 36 has an arcuate inner wall surface 38. The square wall portion 36 is provided with the circular hole 16a described above. The corner wall portions 36 are provided at four corners, and a notch portion 40 is formed in the wall portion 35 between the adjacent corner wall portions 36 so as to be notched downward in FIG. The notch 40 is located at the approximate center of each side of the outer shape of the plate-like portion 34. In addition, a rectangular through hole 42 penetrating vertically is formed in the approximate center of the plate-like portion 34 (see FIG. 4). Further, two claw-shaped locking portions 44 protrude upward from the inside of the pair of opposed notch portions 40 in the plate-like portion 34.

  The intermediate cover 12, the convex cover 14, and the concave cover 16 constituting the single body 10 used as the casing of these assembly blocks 2 are formed of a translucent plastic material. Therefore, each assembly block 2 transmits light emitted from the LED elements 51 disposed therein substantially uniformly and substantially uniformly. That is, the light emitter 3 emits light three-dimensionally for each assembly block 2 based on the light from the LED element 51.

  Between the intermediate cover 12 and the convex cover 14, a flat sub-print substrate 46 having an outer shape substantially the same as the outer shape of the intermediate cover 12 is disposed. Circular holes 46 a are also formed at the four corners of the sub-printed circuit board 46. The screw 20 described above is inserted into the circular hole 46a, and the sub print substrate 46 is sandwiched and fixed between the intermediate cover 12 and the convex cover 14 by the screw 20. On the upper surface of the sub printed circuit board 46 in FIG. 4, two female connectors 48 serving as connectors on the output side are mounted. The two female connectors 48 serving as electrical connection portions are disposed along a pair of opposing side surfaces of the rectangular frame-shaped intermediate cover 12 in a positional relationship that is substantially point-symmetric with respect to the center of the intermediate cover 12. In a state where the convex cover 14 is disposed on the sub-print substrate 46, the female connector 48 is positioned inside the through hole 26 and is surrounded by the convex portion 24. Each female connector 48 has 10 pin insertion holes 48a as connection terminals. In these female connectors 48, ten pin insertion holes 48a are arranged in two rows of five each.

  Further, between the intermediate cover 12 and the concave cover 16, a flat main printed circuit board 50 having an outer shape substantially the same as the outer shape of the intermediate cover 12 is disposed. Circular holes 50 a are also formed at the four corners of the main printed circuit board 50. A screw 20 is inserted into the circular hole 50 a, and the main printed circuit board 50 is sandwiched and fixed between the intermediate cover 12 and the concave cover 16 by the screw 20. The LED element 51 is mounted on the upper surface of the main printed board 50 in FIG. 4, and four male connectors 52 serving as connectors on the input side are mounted on the lower surface. The four male connectors 52 serving as the electrical connection portions are disposed along the side surfaces of the rectangular frame-shaped intermediate cover 12 in a positional relationship that is substantially point-symmetric with respect to the center of the intermediate cover 12. That is, the four male connectors 52 are arranged so that each is one side of the quadrangle and form a regular quadrangle as a whole. In the state where the concave cover 16 is disposed below the main printed circuit board 50 in FIG. 4, the male connector 52 is positioned inside the through hole 42 and surrounded by the wall portion 35. Each male connector 52 has ten pins 52a as ten connection terminals. In these male connectors 52, ten pins 52a are arranged in two rows by five. Each male connector 52 can be electrically connected to each female connector 48, but in this embodiment, only two male connectors 52 corresponding to the two female connectors 48 are coupled, The electrical connection is made by two female connectors 48 and two male connectors 52.

  The main printed circuit board 50 and the sub printed circuit board 46 are electrically connected by four circuit board connection lines 54.

  As shown in FIG. 5, a lock ring 56 having a ring shape is disposed inside the concave cover 16. Further, in a state where the lock ring 56 is disposed on the concave cover 16, an urging spring 64 is disposed to connect the concave cover 16 and the lock ring 56. And the lock mechanism which locks the said connection at the time of connecting each assembly block 2 is mainly comprised from the convex part 24, the lock ring 56, and the urging | biasing spring 64 (refer FIG. 5). Specifically, the lock mechanism is a mechanism for engaging the second engagement portion 60 of the lock ring 56 with the first engagement portion 30 of the convex portion 24 using the biasing force of the biasing spring 64. is there.

  The lock ring 56 has a circumferential outer shape slightly smaller than the circumference connecting the arcs of the inner wall surfaces 38 of the respective corner wall portions 36. The lock ring 56 includes a ring frame-shaped ring frame portion 58 and four second engaging portions 60 extending from the inner peripheral surface of the ring frame portion 58 toward the center of the ring frame portion 58. ing. The second engaging portions 60 are provided at intervals of 90 degrees along the circumferential direction inside the ring frame portion 58. Each of the second engaging portions 60 is substantially D-shaped so as to close the inner region of the four arcs on the inner periphery of the ring frame portion 58. Further, the inner end surface 60a of each second engaging portion 60 is formed in a straight line. Further, a tapered surface 61 is formed on the back side surface (the lower surface in FIG. 5) of the second engaging portion 60 so that the thickness decreases from the outside toward the inner end surface 60a. Further, an arc-shaped through hole 62 penetrating vertically is formed in the peripheral edge portion of the pair of second engaging portions 60 facing each other among the four second engaging portions 60. One of the other pair of second engaging portions 60 is provided with a spring engaging portion 66 for engaging one end of the urging spring 64. The spring engaging portion 66 is provided at one end of the second engaging portion 60.

  The lock ring 56 is disposed inside the concave cover 16 so as to insert the locking portion 44 into the through hole 62. The circumferential width of the through hole 62 is formed wider than the circumferential width of the locking portion 44. For this reason, in a state where the lock ring 56 is disposed inside the concave cover 16, the lock ring 56 has a margin for rotating in the circumferential direction. Then, the rotation of the locking portion 44 is restricted by contacting the second engagement portion 60 surrounding the through hole 62 during the rotation in the circumferential direction. A biasing spring 64 is interposed between one of the square wall portions 36 and the lock ring 56 with the lock ring 56 disposed on the concave cover 16 (see FIG. 5). One end of the urging spring 64 is engaged with the spring engaging portion 66 described above, and the other end is engaged with a protrusion 36 a provided on the square wall portion 36. For this reason, the lock ring 56 is normally provided with a turning force in the direction indicated by the arrow A in FIG. 5, but is further rotated in the direction indicated by the arrow A by contact with the second engagement portion 60. Is regulated (see FIG. 6).

  Next, the operation of the lock mechanism when connecting the assembly blocks 2 will be described. FIG. 7 is a cross-sectional view for explaining the state of the lock mechanism in the middle of connecting the assembly blocks 2. FIG. 8 is a cross-sectional view for explaining the state of the lock mechanism after the assembly block 2 is connected.

  As shown in FIG. 5, the lock ring 56 is urged in the direction indicated by the arrow A by the urging spring 64 in the concave cover 16. For this reason, the side surface on the right side in the circumferential direction in FIG. 5 of the through hole 62 in the second engagement portion 60 is in contact with the locking portion 44, thereby restricting the rotation of the lock ring 56 and positioning. When the convex portion 24 of the convex cover 14 is inserted into the through hole 42 of the concave cover 16 (moved in a direction in which the convex coupling portion 6 and the concave coupling portion 7 are coupled), as shown in FIG. The 30 taper surfaces 32 and the taper surfaces 61 of the second engaging portion 60 are in contact with each other. As described above, the tapered surface 32 is formed so as to increase in area as it goes from the center side of the wall portion 28 toward the corner portion, and is formed so that the cut becomes larger toward the corner portion. For this reason, when the concave cover 16 is pushed downward or when the convex cover 14 is pushed toward the concave cover 16, the second engaging portion 60 is moved in the direction indicated by the arrow B due to the contact of both the tapered surfaces 32 and 61. Rotate toward. That is, the lock ring 56 rotates in the arrow B direction against the urging force of the urging spring 64. By approaching both the convex cover 14 and the concave cover 16 in the connecting direction, the end point 60b on the left side in the circumferential direction of the second engagement portion 60 moves toward the end point 30b on the right side in the circumferential direction of the first engagement portion 30. When the lock ring 56 is rotated to a position where the inner end surface 60a gets over the first engaging portion 30, both the engaging portions 30, 60 are released from contact with each other, and the resistance to pushing by the both engaging portions 30, 60 is lost. The lock ring 56 is completely fitted to the outside of the convex portion 24. At that time, since the second engaging portion 60 is in a position facing the slope portion 29, the biasing spring 64 is released from the tensile force. For this reason, the lock ring 56 is rotated in the arrow A direction by the urging force. That is, as shown in FIGS. 6 and 8, the lock ring 56 rotates in the direction indicated by the arrow A in a state where the second engagement portion 60 is positioned below the first engagement portion 30. The engaging portion 30 and the second engaging portion 60 are engaged. Even in this engaged state, the side surface on the right side in the circumferential direction of the through hole 62 in the second engaging portion 60 abuts on the locking portion 44, so that further rotation of the lock ring 56 is restricted. In this way, the lock ring 56 returns to the original position before connection. As described above, the lock mechanism locks the assembly block 2 when it is connected. Note that the male connector 52 and the female connector 48 are also connected simultaneously with the connection of the assembly block 2, and both are electrically connected.

  When releasing the lock of the lock mechanism, the lock ring 56 is rotated in the direction indicated by the arrow B. Specifically, the lock ring 56 is held by hand from the outside of the concave cover 16 through the notch 40, and the lock ring 56 is rotated in the arrow B direction. Then, since the engagement of both the engaging portions 30 and 60 is released by an operation opposite to the operation at the time of connection, the assembly block 2 can be disconnected in that state.

  In the light emitting device 1 configured as described above, each assembly block 2 has a lock mechanism. Therefore, when the assembly block 2 is connected, the connection between the two assembly blocks 2 is locked. Therefore, when the light emitters 3 are assembled by stacking a plurality of assembly blocks 2, the connection strength of the light emitters 3 can be improved. Moreover, the connection of the two assembly blocks 2 is automatically locked only by inserting the convex portion 24 of the convex cover 14 into the through hole 42 of the concave cover 16. For this reason, the connection strength can be improved while facilitating the connection work of the assembly blocks 2.

  Further, the locking mechanism uses the biasing force of the biasing spring 64 to engage the second engagement portion 60 formed on the lock ring 56 with the first engagement portion 30, thereby allowing the assembly block 2 to be engaged. The connection of is locked. Therefore, it is possible to realize locking when connecting the assembly blocks 2 with a simple configuration without requiring a large number of parts. In addition, since each of the first engaging portion 30 and the second engaging portion 60 is provided in four, the connection of the two assembly blocks 2 can be stably locked in a stable state. It becomes possible. Further, since the lock can be released only by rotating the lock ring 56 in the circumferential direction via the notch portion 40 of the concave cover 16, disassembling work of the connected assembly blocks 2 is facilitated. Further, when the assembly block 2 is connected, the connection between the two is locked and the male connector 52 is connected to the female connector 48. Therefore, when both the assembly blocks 2 are connected, the connection can be locked and electrical connection between the both assembly blocks 2 can be secured. As described above, since it is not necessary to use screws or the like for assembling the plurality of assembly blocks 2, it is possible to easily assemble and disassemble the product manually, and it becomes easy to change the shape of the panel or the object or to move it.

  Further, in the lock mechanism, the tapered surface 32 is formed so that the area increases as it goes from the center side of the wall portion 28 toward the corner portion. For this reason, the 1st engaging part 30 and the 2nd engaging part 60 will slide smoothly. Therefore, the assembly block 2 can be locked without requiring a large pressing force. Further, four male connectors 52 are arranged point-symmetrically around the axial center of the single body 10, and two female connectors 48 are similarly arranged point-symmetrically. Also, four first engaging portions 30 and four second engaging portions 60 are arranged in a point-symmetric manner. For this reason, both the assembly blocks 2 can be connected without considering the positional relationship between the both assembly blocks 2, and electrical connection is also possible.

(Second Embodiment)
The light emitting device 70 according to the second embodiment of the present invention will be described below with reference to the drawings. Note that in the light emitting device 70 according to the second embodiment, the same reference numerals are assigned to items common to the first embodiment, and the description thereof is omitted or simplified.

  FIG. 9 is a perspective view showing a light emitting device 70 according to the second embodiment of the present invention. FIG. 10 is an exploded perspective view showing the configuration of the assembly block 72. FIG. 11 is a side view showing the configuration of the assembly block 72 constituting the light emitter 73.

  The light-emitting device 70 includes a light-emitting body 73 that is formed in a square tower shape by stacking a plurality of double-size assembly blocks 72 and the computer terminal 4. The light emitter 73 and the computer terminal 4 are connected by a flat cable 5. Each assembly block 72 has two LED elements 51, and the LED elements 51 emit light based on luminance data received from the computer terminal 4.

  As shown in FIGS. 10 and 11, the assembly block 72 has a double-size double body 74 in which two single bodies 10 are integrated. The double body 74 has a cubic frame shape that is long in one direction. The double body 74 includes an intermediate cover 76 and two concavo-convex covers 78. The concave / convex cover 78 is obtained by integrating the convex cover 14 and the concave cover 16, and includes a convex cover portion 80 and a concave cover portion 82. In addition, a partition wall portion 78 that partitions the internal space of the intermediate cover 76 into two regions is provided substantially at the center of the intermediate cover 76. When the partition wall 78 is interposed between the intermediate covers 76, two cubes are formed in the double body 74. Further, an LED element 51 is disposed inside each cube. And since this partition wall part 78 intervenes, it becomes difficult for the emitted light of the LED element 51 in one cube to permeate into the other cube. That is, the cubes are optically separated inside the double body 74. For this reason, color mixing between two integrated cubes hardly occurs, and each cube can emit light with each brightness by each control color. For example, it is possible to prevent a cube intended to shine darkly from becoming bright due to the light of another integrated cube.

  The intermediate cover 76 has a substantially rectangular parallelepiped outer shape, and has two through-holes having a square cross section that penetrates from the upper surface to the lower surface. As described above, the partition wall portion 78 that partitions the internal space of the intermediate cover 76 into two regions is provided substantially at the center of the intermediate cover 76. For this reason, the intermediate cover 76 has a frame structure having two through holes. A total of eight columnar portions 18 having a columnar shape are provided at four corners inside each frame structure in the intermediate cover 76 (see FIG. 10).

  An uneven cover 78 is disposed above and below the intermediate cover 76, respectively. As shown in FIG. 10, the concave and convex covers 78 are disposed so that the convex cover portions 80 and the concave cover portions 82 face each other.

  Further, a double-sized main printed circuit board 84 is disposed between the intermediate cover 76 and the uneven cover 78 disposed upward in FIG. The LED elements 51 are mounted on the back surface of the double-sized main printed board 84 so as to correspond to each cube. Further, four male connectors 52 and two female connectors 48 are disposed on the surface of the double-sized main printed circuit board 84. The four male connectors 52 are disposed in the concave cover portion 82, and the two female connectors 48 are disposed in the convex cover portion 80. Similarly to the case of FIG. 4 and the like, a lock ring 56 is disposed in the concave cover portion 82 of each concave and convex cover 78, and an urging spring 64 is interposed between the concave cover portion 82 and the lock ring 56. Intervened.

  The convex cover portion 80 of the assembly block 72 can be fitted with the concave cover portion 82 of another assembly block 72. In the present embodiment, the convex cover portion 80, the lock ring 56, and the biasing spring 64 mainly constitute a lock mechanism. For this reason, when the convex cover part 80 of the assembly book 72 is fitted with the concave cover part 82 of the other assembly block 72, the connection is locked. The configuration of the lock mechanism is the same as that shown in FIGS. Further, the concave and convex covers 78 can be fitted with four degrees of freedom based on the cubic shape. As a result, the assembly blocks 72 can be freely combined to form a three-dimensional shape.

  FIG. 12 is a diagram for explaining the degree of freedom in the connecting direction of the two assembly blocks 72. FIG. 12A is a diagram in which the longitudinal directions of the two assembly blocks 72 are stacked in the same direction. It is a figure which shows the state connected with 0 degree | times, (B) is a figure which shows the state connected with the direction where a mutual longitudinal direction makes 90 degree | times. FIG. 13 is a diagram for explaining the degree of freedom in the connecting direction of the two assembly blocks 72. FIG. 13A is a diagram in which the longitudinal directions of the two assembly blocks 72 are opposite to those in FIG. Is a diagram showing a state where the two are connected at 180 degrees, and (B) is a state in which the longitudinal directions of the two are 90 degrees opposite to those in FIG. FIG.

  As shown in FIGS. 12 and 13, there are four degrees of freedom in the connecting direction of the two assembly blocks 72. In FIG. 12A, the two assembly blocks 72 are connected so that the two assembly blocks 72 are stacked one above the other so that their longitudinal directions are the same. In this connected state, the two female connectors 48 in the lower assembly block 72 in the figure are electrically connected to the two male connectors 52 arranged in the longitudinal direction in the upper assembly block 72 in the figure on the left side in the figure. Connected. Further, the two male connectors 52 arranged in the longitudinal direction of the lower assembly block 72 in the figure are electrically connected to the two female connectors 48 of the upper assembly block 72 in the figure on the right side in the figure. . The upper assembly block 72 in the figure is connected at an angle of 0 degrees with respect to the lower assembly block 72 in the figure.

  In the connected state shown in FIG. 12B, the two female connectors 48 of the lower assembly block 72 in the figure are electrically connected to the two male connectors 52 aligned in the short direction in the upper assembly block 72 in the figure. Connected to. The upper assembly block 72 in the figure is connected at an angle of 90 degrees with respect to the lower assembly block 72 in the figure.

  In the connected state shown in FIG. 13A, the two female connectors 48 of the lower assembly block 72 in the figure are electrically connected to the two male connectors 52 aligned in the longitudinal direction in the upper assembly block 72 in the figure. Connected. The upper assembly block 72 in the figure is connected in an orientation of 180 degrees with respect to the lower assembly block 72 in the figure.

  In the coupled state shown in FIG. 13B, the two female connectors 48 of the lower assembly block 72 in the figure are electrically connected to the two male connectors 52 arranged in the short direction in the upper assembly block 72 in the figure. Is done. The upper assembly block 72 in the figure is connected in an orientation of 270 degrees with respect to the lower assembly block 72 in the figure.

  As in the above examples of connection, the assembly block 72 shown in FIG. 12 and FIG. 13 is basically assembled in other directions with four degrees of freedom while obtaining electrical connection between the male connector 52 and the female connector 48. It can be connected to block 72. Therefore, by combining the assembly block 72, a square tower-shaped light emitter 73 can be formed as shown in FIG. In addition, in the tower-shaped light emitter 73, all the LED elements 51 can be electrically connected. Further, the tower-shaped light emitter 73 of FIG. 9 is engaged with the first engagement portion 30 and the second engagement portion 60 by rotating the lock ring 56 as in the case of the first embodiment. By disassembling by releasing, a plurality of assembly blocks 72 used in the tower-shaped light emitter 73 can be used to form another three-dimensional light emitter 73. The user can form the desired three-dimensional light emitter 73 simply by fitting the assembly blocks 72 together.

  In the light emitting device 70 configured as described above, since each assembly block 72 has a lock mechanism, the connection of each assembly block 72 is locked when the assembly block 72 is connected. Therefore, when the light emitter 73 is formed by combining the assembly blocks 72, the connection strength of the light emitter 73 can be improved. Further, the connection of the two assembly blocks 72 can be locked only by fitting the convex cover portion 80 to the concave cover portion 82. For this reason, the assembly work of the assembly block 72 becomes easy. Further, the lock of each assembly block 72 can be released simply by rotating the lock ring 56 from the cutout portion 40 of the concave cover portion 82. For this reason, the disassembly work of the assembly block 72 is also facilitated. As described above, since it is not necessary to use screws or the like for assembling the plurality of assembly blocks 72, it can be easily assembled and disassembled manually, and it is easy to change the shape or transfer the panel or object.

  Each assembly block 72 can be connected to other assembly blocks 72 with four or more degrees of freedom. Moreover, the male connector 52 and the female connector 48 are electrically connected in all connecting directions. In other words, it is possible to ensure electrical connection in all the connecting directions while securing many degrees of freedom with respect to the connection of each assembly block 72 to another assembly block 72. As a result, by connecting a plurality of assembly blocks 72, a light emitter 73 having a desired shape can be obtained. Further, by combining the double-sized assembly block 72, the shape variations that can be assembled increase. Further, the combination of the single-size assembly block 2 and the double-size assembly block 72 further increases the shape variations that can be assembled.

(Third embodiment)
Hereinafter, a light emitting device 90 according to a third embodiment of the present invention will be described with reference to the drawings. Note that in the light emitting device 90 according to the third embodiment, the same reference numerals are given to items common to the first embodiment, and the description thereof is omitted or simplified.

  FIG. 14 is an exploded perspective view showing the configuration of the convex coupling portion 93 and the concave coupling portion 94 before the assembly block 91 is coupled. FIGS. 15A and 15B are diagrams showing the configuration of the convex coupling portion 93 and the concave coupling portion 94 before the assembly block 91 is coupled. FIG. 15A is a plan view of the concave coupling portion 94, and FIG. 93 is a plan view of FIG.

  As shown in FIG. 1, the light-emitting device 90 includes a light-emitting body 92 formed in a tower shape by stacking a plurality of assembly blocks 91, supplies power to the light-emitting body 92, and emits light from the light-emitting body 92. And a computer terminal 4 as a controller to be controlled. The light emitter 92 and the computer terminal 4 are connected by a flat cable 5.

  Since the assembly block 91 according to the present embodiment is different from the assembly block 2 according to the first embodiment in the configuration of the convex coupling portion 93 and the concave coupling portion 94, in this embodiment, the convex coupling portion The configurations of 93 and the concave coupling portion 94 will be mainly described. The assembly block 91 is connected to each other at the convex connection portion 93 and the concave connection portion 94. When the assembly block 91 is connected vertically, the connection is locked by a lock mechanism described later.

  The convex cover 95 constitutes a part of the convex coupling part 93, and the concave cover 96 constitutes a part of the concave coupling part 94. As shown in FIG. 14, the convex cover 95 includes a rectangular flat plate-like portion 22 and a convex portion 97 protruding upward from the upper surface thereof. Further, a substantially rectangular through hole 98 penetrating vertically is formed inside the convex portion 97. Thus, the convex portion 97 constitutes four wall portions 99 surrounding each side surface of the through hole 98. Each wall 99 is formed with a notch 100 whose outer peripheral surface is notched in a curved shape toward one corner. The notch 100 is cut out on the entire outer peripheral surface of the wall 99 from the central portion of the wall 99 to the midway portion in the circumferential direction (arrow A direction) in the vicinity of the corner. Only the lower region is formed so as to be cut out in the circumferential direction (arrow A direction) (see FIG. 14). By forming the notch 100 in this way, a protrusion 101 that protrudes outward in the diagonal direction of the quadrilateral from the protrusion 97 is formed, and a region higher than a predetermined height in the protrusion 101 is opposite to the notch direction. A first engaging portion 102 that protrudes in the direction (arrow B direction) is formed. Further, a tapered surface 103 having a tapered shape is formed on the upper end surface of the first engaging portion 102 so as to decrease in thickness as it goes toward the tip and in the arrow B direction. Further, a through hole 104 having an outer shape substantially the same as or slightly larger than that of the first engaging portion 102 is formed below the first engaging portion 102 in the plate-like portion 22 (FIGS. 14 and 15). reference). In addition, a groove 105 that is recessed inwardly along the vertical direction in FIG. 14 is formed at the approximate center in the horizontal direction of each wall 99.

  The concave cover 96 includes a rectangular flat plate-like portion 34, a wall portion 35 rising from the outer periphery of the plate-like portion 34, and square wall portions 36 standing at the four corners of the plate-like portion 34 (see FIG. 14). ). Each square wall portion 36 has an arcuate inner wall surface 38. The corner wall portions 36 are provided at the four corners, and a notch portion 40 is formed in the wall portion 35 between the adjacent corner wall portions 36 so as to be cut downward in FIG. The notch 40 is located at the approximate center of each side of the outer shape of the plate-like portion 34. The notch 40 provided in the outer wall 35 of the biasing spring 64 disposed in the concave cover 96 is notched in two steps, and the upper one is wider than the other three notches 40. The lower one is formed as a wide notch 40a having the same width as the others. A substantially rectangular through-hole 106 penetrating up and down is formed substantially at the center of the plate-like portion 34 (see FIGS. 14 and 15). Further, three claw-shaped locking portions 112 project upward from the inside of the cutout portion 40 (excluding the inside of the wide cutout portion 40a) in the plate-like portion 34.

  The plate-like portion 34 has a substantially rectangular inner peripheral surface 107 that surrounds the through hole 106 inside. From the four side surfaces 108 constituting the inner peripheral surface 107, a convex portion 109 having a substantially cubic shape protrudes inward. The convex portion 109 is located at the approximate center of each side surface 108. In addition, an inner edge portion 110 having a substantially D-shape is provided outside the side surface 108 on the wide notch 40a side and each convex portion 109 provided on the side surface 108 facing the side surface 108. The inner edge portion 110 is connected to the outside of each of the two convex portions 109 so as to have the same vertical height as the convex portion 109. In addition, a notch 111 is formed at one end of the inner edge 110 so as to be cut out at an acute angle toward the through hole 106 side.

  As shown in FIGS. 14 and 15, a lock ring 113 having a ring shape is disposed inside the concave cover 96 in a state of being placed on the plate-like portion 34. In addition, the urging spring 64 is arranged to connect the concave cover 96 and the lock ring 113 in a state where the lock ring 113 is disposed on the concave cover 96. And the lock mechanism which locks the said connection at the time of connecting each assembly block 91 from the convex part 97 of the convex cover 95, the lock ring 113, and the biasing spring 64 is mainly comprised (refer FIG. 14). .

  The lock ring 113 includes a ring frame-shaped ring frame portion 114 and an extending portion 115 extending from the inner peripheral surface of the ring frame portion 114 toward the center of the ring frame portion 114 over the entire circumference. ing. In addition, a through hole 118 having a substantially circular shape is provided on the inner side of the extending portion 115 and having a size similar to that of the through hole 106 (see FIG. 15). And from the extension part 115, it extends so that a pair of 2nd engaging part 116a may oppose on both sides of the through-hole 118 toward the inner side. In addition, from the position where the second engaging portion 116a and the space portion 117 are separated, the inward width dimension gradually increases as the other second engaging portion 116b moves in the circumferential direction (arrow A direction). It is provided as a shape extending so as to increase. Two other second engaging portions 116b are also provided so as to face each other with the through hole 118 interposed therebetween. In the vicinity of the end point 116c in the circumferential direction (arrow A direction) of each of the second engaging portions 116a and 116b, a tapered surface 119 having a tapered shape is formed such that the thickness decreases toward the end point 116c. Has been. The tapered surface 119 has a front tapered surface 119a formed on the front side and a back tapered surface 119b formed on the back side (see FIG. 14). The front taper surface 119a and the back taper surface 119b are joined at the approximate center in the height direction of the second engagement portions 116a and 116b. The tapered surfaces 119 are provided at intervals of 90 degrees along the circumferential direction inside the ring frame portion 114. A claw-shaped positioning claw 121 extending from the position along the direction indicated by arrow A is disposed at a position separating the tapered surface 119 and the space 120 of the second engagement portion 116b. At the tip of the positioning claw 121, a claw-like claw portion 121a is formed. In the vicinity of one base portion of the two positioning claws 121, a spring engaging portion 122 for engaging one end of the biasing spring 64 is provided. Further, an arcuate through-hole 123 penetrating vertically is formed at the peripheral edge of the positioning claw 121 and the two second engaging portions 116b where the spring engaging portion 122 is not provided (see FIG. 15). ). A notch 124 is provided on the outer peripheral side of the positioning claw 121 in the radial direction to allow the positioning claw 121 to be elastically deformed toward the outer peripheral side. The notch 124 is connected to the through hole 118.

  The lock ring 113 is disposed inside the concave cover 96 so as to insert the locking portion 112 into the through hole 123. The locking portion 112 restricts the rotation of the lock ring 113. With the lock ring 113 disposed on the concave cover 96, the biasing spring 64 is interposed between one of the square wall portions 36 and the lock ring 113 (see FIGS. 14 and 15A). The lock ring 113 is normally restricted from rotating in the direction indicated by the arrow A by the locking portion 112 (see FIG. 15A).

  Next, the operation of the lock mechanism when connecting the assembly blocks 91 will be described. FIG. 16 is a plan view showing a state of the convex coupling portion 93 and the concave coupling portion 94 before the coupling of the assembly block 91 is locked. FIG. 17 is a plan view showing a state of the convex coupling part 93 and the concave coupling part 94 in the middle of locking the assembly block 91. FIG. 18 is a plan view showing a state of the convex coupling part 93 and the concave coupling part 94 when the locking mechanism is positioned.

  When the convex portion 97 of the convex cover 95 is inserted into the through hole 106 of the concave cover 96 (moved in a direction in which the convex coupling portion 93 and the concave coupling portion 94 are coupled), as shown in FIG. Each taper surface 103 and each back taper surface 119b of 2nd engaging part 116a, 116b contact. When the convex portion 97 of the convex cover 95 is inserted into the through hole 106 of the concave cover 96, the convex portion 109 is fitted into the groove portion 105, whereby the insertion is guided in the connecting direction. The taper surface 103 decreases in thickness in the direction indicated by the arrow B. On the other hand, the thickness of the back taper surface 119b decreases in the direction indicated by the arrow A. For this reason, when the concave cover 96 is pushed downward or when the convex cover 97 is pushed toward the concave cover 96, the second engaging portions 116a and 116b are indicated by arrows B due to the contact of both the tapered surfaces 103 and 109b. It turns in the direction. Further, when both the convex cover 97 and the concave cover 16 are brought closer to the direction in which they are completely connected, as shown in FIG. 17, the end point 116c on the left side in the circumferential direction of the second engaging portions 116a, 116b and the first The end point 102b on the right side in the circumferential direction of the engaging portion 102 comes into contact (see FIG. 17). When the first engaging portion 102 gets over the second engaging portions 116a and 116b, the resistance against pushing by the engaging portions 102, 116a, and 116b is lost, so that the biasing spring 64 is released from the stretched force. Is done. For this reason, the lock ring 113 is rotated in the direction indicated by the arrow A by the biasing force (= the contracting force), and the second engagement portions 116 a and 116 b are formed on the lower side of the first engagement portion 102. Fits completely into the part 100. That is, the state in which the first engagement portion 102 and the second engagement portions 116a and 116b are engaged with the second engagement portions 116a and 116b positioned below the first engagement portion 102. It becomes. In this engaged state, since the second engaging portions 116a and 116b hit the lower portion of the first engaging portion 102, further rotation of the lock ring 113 is restricted.

  When releasing the lock of the lock mechanism, the lock ring 113 is rotated in the arrow B direction. Specifically, the lock ring 113 is held by hand from the outside of the concave cover 96 at the cutout portion 40, and the lock ring 13 is rotated in the direction indicated by the arrow B. Then, the engagement of the engaging portions 102, 116a, and 116b is released by an operation opposite to the operation at the time of connection. Further, when the lock ring 113 is rotated in the direction indicated by arrow B, as shown in FIG. 18, the claw portion 121 a of the positioning claw 121 climbs over the portion projecting into an acute claw shape on one end side of the inner edge portion 110 and cuts out. Fits into 111. When the claw portion 121a is fitted in the notch 111, the lock ring 113 is positioned with respect to the convex portion 97. In this positioning state, the urging spring 64 is extended and a force to contract is applied, but even if the hand is released from the lock ring 113, the lock ring 113 does not rotate because the claw portion 121a enters the notch 111. Therefore, if the lock ring 113 is in such a positioning state at one end, the unlocked state can be maintained, and the assembly block 91 can be disconnected without holding the lock ring 113 by hand.

  In the light emitting device 90 configured as described above, the connection of the two assembly blocks 91 is automatically locked only by inserting the convex portion 97 of the convex cover 95 into the through hole 106 of the concave cover 96. Further, the assembly block 91 has a lock mechanism. The lock mechanism uses the biasing force of the biasing spring 64 to connect the second engaging portions 116a and 116b formed on the lock ring 113 to the first. The coupling of the assembly block 91 is locked by engaging with the engaging portion 102. Therefore, it is possible to achieve locking when connecting the assembly blocks 91 with a simple configuration without requiring a large number of parts. In addition, since each of the first engaging portion 102 and the second engaging portions 116a and 116b is provided by four, the connection of the two assembly blocks 91 is locked in a stable state. It becomes possible. Further, since the first engaging portion 102 and the second engaging portions 116a and 116b are engaged in the tangential direction of the lock ring 113, the biasing spring 64 is pulled by the engaging portions 102, 116a and 116b. Both engaging portions 102, 116a, and 116b can be engaged in a state where force is effectively transmitted. Therefore, the engagement of both the engaging portions 102, 116a, and 116b becomes more reliable. Further, if the lock ring 113 is brought into the positioning state by fitting the claw portion 121a of the positioning claw 121 of the concave cover 96 into the notch portion 111 of the inner edge portion 110, the unlocked state can be maintained. It is possible to disassemble the connected assembly block 91 without holding the ring 113 by hand. Therefore, it is possible to quickly and easily disassemble the connected assembly block 91. Note that the connected lock ring 113 can be connected to the convex cover 95 again. In that case, the positioning state of the lock ring 13 may be released by rotating the lock ring 113 in the A direction after the two assembly blocks 91 are completely brought into contact with each other.

  As mentioned above, although each embodiment of this invention was described, this invention is not limited to the above-mentioned form, It can implement in the form variously deformed.

  In each of the above-described embodiments, four first engaging portions 30 and 102 and two second engaging portions 60, 116a, and 116b are formed, but two or three are formed. Anyway. In this case, in the third embodiment, the number of notch portions 100 corresponding to the number of the first engaging portions 102 may be provided. Further, five or more of each may be formed. Also, the shape of the assembly block is a triangular prism shape, and both the engaging portions 30, 102, 60, 116a, 116b are arranged three by three, or the pentagonal prism shape is used for the both engaging portions 30, 102, 60, 116a, 116b. You may arrange 5 each. In the third embodiment described above, the front tapered surface 119a and the back tapered surface 119b are formed on the front and back surfaces of the second engaging portions 116a and 116b, respectively. Only one of these may be formed without forming both of the tapered surfaces 119b.

  In the second embodiment described above, the double-sized main printed circuit board 84 on which the female connector 48 and the male connector 52 are mounted is disposed above the intermediate cover 76. However, the present invention is limited to such a configuration. The single-sized main printed circuit board 50 on which only the male connector 52 is mounted is disposed on one of the upper and lower sides of the intermediate cover 76, and the other of the upper and lower sides of the intermediate cover 76. Alternatively, a single-sized subn printed circuit board 46 on which only the female connector 48 is mounted may be disposed. In addition, a double-sized main printed circuit board 85 on which the male connector 52 and the female connector 48 are mounted is disposed on one of the upper and lower sides of the intermediate cover 76, and on the other of the upper and lower sides of the intermediate cover 76. A single-size sub-print board 46 on which only the female connector 48 is mounted or a single-size main print board 50 on which only the male connector 52 is mounted may be provided.

  In the above-described embodiments, the connectors on the input side of the assembly blocks 2, 72, 91 are the four male connectors 52, and the connectors on the output side are the two female connectors 48. However, these correspondence relationships may be reversed. In addition, for example, as the female connector 48 and the male connector 52, for example, a common connector in which a plurality of pins or a plurality of pin insertion holes are arranged in a square may be used.

  In each of the above-described embodiments, the pin 52a of the male connector 52 is inserted into the pin insertion hole 48a of the female connector 48. However, the present invention is not limited to such a configuration. 19, the male connector 52 is composed of a crimp connector 130 having eight pins that can be expanded and contracted. For example, as shown in FIG. 20, the female connector 48 is formed on a board that can be electrically connected. Alternatively, it may be composed of a plurality of pads 132 (connection terminals). As shown in FIG. 19B, four pins of the crimp connector 130 are arranged in two rows. In FIG. 19B, FIG. 20, and FIG. 21, the crossed one-dot chain line is a center line.

  Here, as shown in FIG. 19B, the crimp connector 130 is placed on the sub printed circuit board 46 or the main printed circuit board 84, for example, so that the center position of both rows coincides with the center of the single-size assembly block 2. As shown in FIG. 20, a total of 12 pads 132 can be provided on the main printed board 50 or 84. Further, as shown in FIG. 20, the twelve pads 132 (connection terminals) are divided into two groups of eight (in FIG. 20, a group of connection terminals surrounded by a wavy line and a one-dot chain line). . As described above, when both connectors are composed of the crimp connector 130 and the twelve pads 132, each assembly block 72 can be connected with four degrees of freedom every 90 degrees. In addition, when connected at an angle of 90 degrees, the pads 132 of each group are used alternately. Further, since both the connectors are composed of the crimp connector 130 and the pad 132, the height dimension can be reduced as compared with the case where the female connector 48 and the male connector 52 are constructed. In addition, the portion to which pressure is applied by the crimp connector 130 is approximately the center of the main printed circuit board 50, so that the pressure applied to the assembly blocks 2 and 72 is well balanced.

  Further, as shown in FIG. 21A, the crimp connector 130 is disposed on the sub printed circuit board 46 so that the center position of one row coincides with the center of the single-size assembly block 2, and As shown in FIG. 21B, it is possible to provide a total of 24 pads 132 on the main printed circuit board 50. In FIG. 21B, the 24 pads 132 are divided into two groups of 12 pads 132a arranged in 4 rows and 3 columns and 12 pads 132b arranged in 3 rows and 4 columns. Further, as shown in FIG. 21B, the center row of the pads 132a arranged in the 4th row and the 3rd column and the pad 132b constituting the center column and the pad 132b arranged in the 3rd row and 4th column. Are aligned with the center line of the single-size assembly block 2. Note that the twelve pads 132a and 132b in the two groups are offset from each other by an angle of 90 degrees.

  Further, the 24 pads 132 are divided into four groups of 11 each (in FIG. 21B, a connection terminal group surrounded by a square frame of a wavy line, a one-dot chain line, and a two-dot chain line). Further, the eleven pads 132 in each group are divided into three rows (with four pads in the left and right or top and bottom outer rows and three pads in the center row).

  Of the 24 pads 132, a total of eight pads 132 that coincide with the center line (vertical and horizontal directions) of the single-size assembly block 2 constitute a power supply terminal and a ground terminal. Further, the other 16 pads 132 constitute a signal terminal for transmitting and receiving data relating to light emission control of the LED element 51 and a direction detection terminal for detecting the direction of the angle when the assembly block 2 is assembled. Such a configuration of the crimp connector 130 and the pad 132 can also be adopted in the double-size assembly block 72.

  As shown in FIGS. 21A and 21B, when the crimp connector 130 and the pad 132 are arranged and the two assembly blocks 2 are connected together with four degrees of freedom, in all the connecting directions. Electrical connection between the crimp connector 130 and the plurality of pads 132 can be ensured. Specifically, when the assembly blocks 2 are connected to each other with four degrees of freedom, the crimp connector 130 is one of the groups surrounded by the four square frames in FIG. It is electrically connected to one group of pads 132. In this case, the crimp connectors 130 are connected to a total of eight pads 132 arranged four on each outer side of each group. As a result, at least four pads 132 that coincide with the center line of the assembly block 2 are electrically connected to the crimp connector 130 when the two assembly blocks 2 are coupled in any of the four directions. That is, when the two assembly blocks 2 are coupled with four degrees of freedom, the combination of signal terminals and direction detection terminals to be connected is different in each direction. Therefore, it is possible to detect the contents of data and the direction in which it is connected by the combination of the signal terminal and the direction detection terminal to be connected. In addition, since four pads 132 of the eight pads 132 that coincide with the center line of the assembly block 2 are always connected, the pressure applied to the assembly block 2 is well balanced when the two assembly blocks 2 are connected. It becomes. The crimping connector 130 and the pad 132 arranged as shown in FIGS. 21A and 21B exert their effects when employed in the assembly block 72. This is because the assembly block 72 is a double-size assembly block, so that it has directionality when connected, and it is a very excellent advantage that the directionality can be easily detected. The crimp connector 130 may be disposed on the main printed circuit board 50 and the pad 132 may be disposed on the sub printed circuit board 46.

  In each of the above-described embodiments, the single-size assembly blocks 2 and 91 are provided with one LED element 51, and the double-size assembly block 72 is provided with two LED elements 51. However, in addition to this, for example, one LED element 51 is arranged in one assembly block 72, or a plurality of light emitting elements that produce one emission color by controlling the plurality of LED elements 51 in cooperation are assembled in one assembly. It may be arranged in the block 72. In addition, for example, a plurality of light emitting elements that generate a plurality of light emission colors may be arranged so as to correspond to the respective LED elements 51. That is, blue light emitting elements may be arranged in certain assembly blocks 2, 72, 91, and light emitting elements of other colors such as red may be arranged in other assembly blocks. Further, in the above-described embodiment, one light emitting element is arranged in the assembly block 2 and 91 and two light emitting elements are arranged in the assembly block 72, but one or more integer light emitting elements are arranged in the assembly block 2 and 91. Elements may be arranged, and one or three or more integer light emitting elements may be arranged in the assembly block 72. As the light emitting element, in addition to the LED, various elements such as a photodiode, an organic EL (organic electroluminescence), an inorganic EL (inorganic electroluminescence), and a plasma light emitting device can be adopted.

  Further, as the above-described embodiments and modifications, the assembly blocks 2, 72, 91 having an outer diameter of a quadrangular prism shape are shown, but other shapes such as a cylindrical shape, a triangular prism shape, and a pentagonal prism shape are shown. The present invention can also be applied to. Further, instead of the urging spring 64 that is a tension spring, a pressing spring that presses in the direction indicated by the arrow A may be provided. Furthermore, although the notch 40 is notched downward from the upper end surface, it may be a hole-like notch with a bridged upper end or a notch with a lower notch.

  The present invention can be suitably used as a panel or an object installed in an exhibition hall or a store.

1 is a perspective view showing a light emitting device according to a first embodiment of the present invention. It is a side view which shows the structure of the assembly block which comprises the light-emitting body in FIG. It is a side view which shows the state which connected the two assembly blocks in FIG. 1 up and down. It is a disassembled perspective view which shows the structure of the assembly block 2 in FIG. It is a disassembled perspective view which shows the structure of the lock mechanism before the assembly block in FIG. 1 connects. It is a perspective view which shows the structure of the lock mechanism after the assembly block in FIG. 1 connects. It is sectional drawing of the locking mechanism in the middle of connecting the assembly block in FIG. It is sectional drawing of the locking mechanism after connecting the assembly block in FIG. It is a perspective view which shows the light-emitting device which concerns on the 2nd Embodiment of this invention. It is a disassembled perspective view which shows the structure of the assembly block in FIG. It is a side view which shows the structure of the assembly block in FIG. FIG. 10A is a diagram for explaining the degree of freedom in the connecting direction of the two assembly blocks in FIG. 9, and FIG. (B) is a figure which shows the state connected with the direction where a mutual longitudinal direction makes 90 degree | times. It is a figure explaining the freedom degree of the connection direction of the two assembly blocks in FIG. 9, (A) makes a mutual longitudinal direction reverse direction and FIG. It is a figure which shows the state connected with the direction rotated 180 degree | times, (B) makes the mutual longitudinal direction 90 degree opposite to FIG. 12 (B), and the state which both connected in the direction rotated 270 degree | times. FIG. It is a figure which shows the assembly block used for the light-emitting device which concerns on the 3rd Embodiment of this invention, and is a disassembled perspective view which shows the structure of the convex connection part before connecting and a concave connection part. It is a figure which shows the structure of the convex connection part shown in FIG. 14, and a concave connection part, (A) is a top view of a concave connection part, (B) is a top view of a convex connection part. It is a top view which shows the state before the convex connection part and concave connection part which are shown in FIG. 14 are locked. It is a top view which shows the state in the middle of the convex connection part and concave connection part which are shown in FIG. 14 being locked. It is a top view which shows the state which the locking mechanism of the convex connection part and concave connection part shown in FIG. 14 was in the positioning state. It is a figure which shows the modification of this invention, (A) is a figure which shows the modification (crimp connector) of a connector, (B) is explanatory drawing which shows the arrangement | positioning position of the crimp connector of (A). is there. It is a figure which shows the modification of this invention, and is explanatory drawing which shows the arrangement | positioning position of the pad used in combination with the crimp connector of FIG. 19 (A). It is a figure which shows the other modification of this invention, (A) is explanatory drawing which shows the arrangement position of the crimp connector of FIG. 19 (A), (B) is combined with the crimp connector of (A). It is explanatory drawing which shows the arrangement | positioning position of the pad used.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,70,90 ... Light-emitting device 2,72,91 ... Assembly block 3,73 ... Light-emitting body 6,93 ... Convex connection part 7,94 ... Concave connection part 10 ... Single body (housing)
12, 76 ... Intermediate cover 14, 95 ... Convex cover 16, 96 ... Concave cover (cover member)
24, 97 ... convex part 28, 99 ... wall part 29 ... slope part 30, 102 ... first engagement part 32, 103 ... taper surface 40 ... notch part 42, 106 ... through hole 46 ... sub printed circuit board 48 ... female Connector (electrical connection part, second connection part)
50 ... main printed circuit board 51 ... LED element (light emitting element)
52 ... Male connector (electrical connection part, first connection part)
56, 113 ... Lock ring 60, 116a, 116b ... Second engaging portion 61, 119 ... Tapered surface 64 ... Biasing spring (biasing member)
74 ... Double body (housing)
78 ... Concave and convex cover 80 ... Convex cover part 82 ... Concave cover part

Claims (8)

In a light emitting device having a plurality of assembly blocks, each of which can be assembled into a three-dimensional shape by being connected to each other,
Each of the assembly blocks includes a convex coupling part, a concave coupling part and an electrical connection part,
When the convex coupling part of the other assembly block is fitted into the concave coupling part, the two assembly blocks are coupled to each other and the electrical connection parts are electrically connected to each other. The light emitting device according to claim 1, wherein the connecting portion is provided with a lock mechanism that automatically locks the connection between the convex connecting portion and the concave connecting portion when the convex connecting portion is fitted into the concave connecting portion.   The convex coupling portion includes a convex portion, and the concave coupling portion includes a cover member having a through-hole into which the convex portion is fitted, and the lock mechanism is a first engagement provided in the convex portion. And a lock ring having a second engagement portion that is disposed inside the cover member and that engages with the first engagement portion of the convex portion that is inserted into the through hole. The light-emitting device according to claim 1.   The first engaging portion protrudes from the upper end of the convex portion in the circumferential direction outward or in the circumferential direction, and the second engaging portion extends in the circumferential direction from the inner peripheral surface of the lock ring or The lock ring has a form protruding in a direction opposite to the circumferential direction, and the lock ring is disposed inside the cover member while being urged in a tangential direction by a biasing member. When the convex portion is inserted into the through hole, the second engagement portion comes into contact with the first engagement portion, so that the lock ring resists the urging force of the urging member. When the first engaging portion rotates to the position where the first engaging portion gets over the second engaging portion, the convex portion fits into the through hole and then the urging force of the urging member. The second engagement portion rotates in the direction opposite to the circumferential direction by the first engagement. And engaged, the light emitting device according to claim 2, wherein the connection of two of the building blocks is locked.   The planar shape of the convex part is a square or a shape in which at least one of the four corners of the square is notched inward, and the first engaging part is the square 4 The second engaging portion is provided inside the lock ring so as to correspond to the first engaging portion while being provided near one corner portion. Light-emitting device.   The taper-shaped taper surface is formed in any one or both of the surface of the said 1st engaging part, the surface of the said 2nd engaging part, and a back surface, The both sides of Claim 4 characterized by the above-mentioned. Light emitting device.   6. The cover member according to claim 2, wherein the cover member has a box shape having four side walls, and each of the side walls is provided with a notch for exposing the lock ring. The light emitting device according to 1.   The assembly block has a first connection part and a second connection part as electrical connection parts. When the convex connection part and the concave connection part of another assembly block are connected, the first connection part and The light emitting device according to claim 1, wherein the second connection portion of the other assembly block is automatically electrically connected. The assembly block has a housing having a cube outer shape or a shape in which a plurality of cubes are connected, and a light-emitting element arranged in the housing for each cube and having the same number or an integer multiple of the number of cubes. And
The light-emitting device according to claim 1, wherein the convex coupling portion and the concave coupling portion are disposed on any surface of the housing.

Images