JP5404530B2 - LED unit - Google Patents

Description

  The present invention relates to an LED unit that is disposed, for example, on a ceiling in a passenger compartment of an automobile and used as a map lamp.

  As shown in FIG. 11, the conventional LED unit 49 includes a case 50, a lens 51, a substrate 52, a heat conductive sheet 53, and a heat radiating plate 54. The heat radiating plate 54 is made of aluminum and includes a base portion 55 and a plurality of flat fins perpendicular to the base portion 55. The heat conductive sheet 53 is a silicone gel containing a metal filler. The substrate 52 is an aluminum heat dissipation substrate, on which an LED 56, a constant current circuit (not shown), a connector 57, and the like are mounted. The connector 57 is connected to a power supply terminal (not shown). A circuit (not shown) is formed on the substrate 52, and the power supplied via the connector 57 is supplied to the LED 56. Further, engaging portions 58 formed by removing a part of the substrate 52 are formed on both sides of the substrate 52. The LED 56 is a surface-mounted LED lamp that emits white light. The lens 51 is a convex lens and includes two positioning portions 59 at the edge thereof. The case 50 is made of heat-dissipating PBT resin and includes an opening 60 that exposes the lens. In addition, the lower surface side of the case 50 is open, and the shape in plan view is slightly larger than the shape in plan view of the base portion 55 of the heat sink 54.

  The heat conductive sheet 53, the substrate 52 on which the LEDs 56 are mounted, and the lens 51 are sequentially stacked on the heat radiating plate 54. Finally, the case 50 and the heat radiating plate 54 sandwich the substrate 52 and the lens 51. By covering the case 50, the conventional LED unit 49 is assembled. At this time, the lens 51 is positioned with respect to the substrate 52 so that the positioning portion 59 of the lens 51 engages with the engagement portion 58 of the substrate 52 and the lens 51 is disposed immediately above the LED 56. Further, the lens 51 is exposed without having a clearance between the lens 51 and the edge forming the opening 60.

JP 2007-35788 A

  By the way, in the above prior art, the positioning portion 59 of the lens 51 is engaged with the engagement portion 58 of the substrate 52. That is, the lens 51 is positioned with reference to the substrate 52 on which the LED 56 is mounted. Further, at this time, no clearance is formed between the lens 51 and the edge forming the opening 60.

  Therefore, expansion / contraction of the substrate 52 or mounting deviation of the LED 56 cannot be absorbed, and there is a problem that stress is generated on the substrate 52. Furthermore, when the expansion / contraction of the substrate 52 or the mounting displacement of the LED 56 occurs, there is a problem that the center of the lens 51 and the LED 56 is displaced.

  Thus, if the stress generated on the substrate 52 cannot be absorbed, the substrate 52 may be damaged. In addition, if a deviation occurs in the center of the lens 51 and the LED 56, the light from the LED 56 cannot be collected and the amount of light falls, and a deviation also occurs in the target area of the LED 56.

  This invention is made | formed in view of an above-described situation, and makes it a subject to provide the LED unit which can absorb the expansion-contraction of a board | substrate, or mounting | wearing deviation of LED.

  The LED unit of the present invention according to claim 1, which has been made to solve the above problems, includes a substrate, an LED mounted on one surface of the substrate, a lens disposed on a light emission side of the LED, In the LED unit configured to include the substrate, the LED, and the cover that accommodates the lens and has an opening that exposes the lens, a pressure contact terminal for pressing the electric wire is fixed to one end of the substrate In addition, the pressure contact terminal is fixed to the cover, the lens and the LED are fixed together, and a clearance is provided between the edge portion forming the opening of the lens and the cover. It is said.

  According to the present invention having such a feature, an LED unit is assembled by mounting an LED on a substrate, arranging a lens on the light emission side of the LED, and housing the substrate, the LED, and the lens in the cover. At this time, the lens is exposed from the opening of the cover. Furthermore, the LED and the lens are fixed together so that the lens and the LED move together. It also creates a clearance between the lens and the edge forming the opening of the cover, so that the LED and the lens can move within this clearance. Furthermore, the press contact terminal provided at one end of the substrate is fixed to the cover.

  The LED unit according to a second aspect of the present invention is the LED unit according to the first aspect, wherein a plurality of ribs are provided inside the lens to sandwich the LED and to center the lens and the LED, In addition, a locking piece that locks the other surface of the substrate to restrain the movement of the lens and the LED is provided inside the cover, and the lens disposed on one surface of the substrate is the cover. It is characterized by abutting on.

  According to the present invention having such characteristics, the LED is securely held by the plurality of ribs provided inside the lens. As a result, the positions of the lens and the LED are determined, and the centering of the lens and the LED is accurately performed. That is, the positioning of the lens is performed with reference to the LED. Further, the holding piece and the cover provided on the cover sandwich the substrate and the lens, thereby preventing the substrate and the lens from moving vertically with respect to the holding piece, and the board and the lens along the holding piece. It is possible to slide in the direction. At this time, the LED and the lens move together.

  The LED unit according to a third aspect of the present invention is the LED unit according to any one of the first to second aspects, wherein the press contact terminal is fixed to one end in the longitudinal direction of the substrate, and the LED and the lens are fixed. It is characterized by being fixed to the other end in the longitudinal direction of the substrate.

  According to the present invention having such characteristics, the press contact terminal, the LED, and the lens are fixed at positions separated from each other on the substrate.

  According to the first aspect of the present invention, the LED and the lens are fixed together, whereby the lens and the LED move together. Furthermore, according to the present invention, a clearance is formed between the edge forming the opening of the lens and the cover, and the lens can move within the clearance. At this time, the press contact terminal provided at one end of the substrate is fixed to the cover. Therefore, since the LED and the lens can be moved integrally, for example, even if expansion / contraction of the substrate, mounting displacement of the pressure contact terminal, or mounting displacement of the LED occurs, these displacements are absorbed and no stress is generated on the substrate. There is an effect.

  According to the second aspect of the present invention, the LED is securely held by the plurality of ribs provided inside the lens. As a result, the positions of the lens and the LED are determined, and the centering of the lens and the LED is accurately performed. That is, the positioning of the lens is performed with reference to the LED. Further, the holding piece and the cover provided on the cover sandwich the substrate and the lens, thereby preventing the substrate and the lens from moving vertically with respect to the holding piece, and the board and the lens along the holding piece. It is possible to slide in the direction. At this time, the LED and the lens move together. Therefore, for example, even if the expansion / contraction of the substrate, the mounting displacement of the pressure contact terminal, the mounting displacement of the LED, or the like occurs, the displacement can be absorbed and the center of the lens and the LED can always be aligned.

  According to the third aspect of the present invention, the press contact terminal, the LED, and the lens are fixed at positions separated on the substrate. Therefore, at the time of press contact, it is possible to suppress the impact applied to the press contact terminal from being transmitted to the LED, and as a result, it is possible to reduce the mounting displacement of the LED, for example. Furthermore, there is an effect that the breakage of the LED can be reduced.

It is an assembly exploded perspective view of the LED unit of the present invention. It is a disassembled perspective view of the board | substrate assembly except for a heat sink comprised by the board | substrate in the LED unit of this invention, a press-contact terminal, LED, and resistance. It is a figure showing the mounting process of the board assembly except a heat sink in the LED unit of this invention, Comprising: (a) is a top view, (b) is a side view. It is a completion perspective view of the board | substrate assembly product except a heat sink in the LED unit of this invention. It is a perspective view when assembling the heat sink and the substrate assembly in the LED unit of the present invention. It is a circuit diagram of the board assembly of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the state which connected the electric wire to the LED unit of this invention, and assembled | attached the electric wire cover, Comprising: (a) is a top perspective view, (b) is a bottom perspective view. It is a top view of the state which connected the electric wire to the LED unit of this invention, and removed the electric wire cover. It is sectional drawing of FIG. 8, Comprising: (a) is AA sectional drawing, (b) is BB sectional drawing. It is the side view of the vehicle which showed an example in which the LED unit of this invention is used. It is an assembly exploded perspective view of the LED unit in a prior art.

  Hereinafter, description will be given with reference to the drawings. FIG. 1 is an exploded perspective view of an LED unit according to the present invention, and FIG. 2 is an exploded perspective view of a substrate assembly excluding a heat sink, which is composed of a substrate, a press contact terminal, an LED, and a resistor in the LED unit of the present invention. FIG. 3 is a diagram showing a mounting process of a board assembly excluding a heat sink in the LED unit of the present invention, where (a) is a top view, (b) is a side view, and FIG. FIG. 5 is a completed perspective view of the board assembly excluding the heat sink in the LED unit of the invention, FIG. 5 is a perspective view when the heat sink and the board assembly in the LED unit of the present invention are assembled, and FIG. FIG. 7 is a circuit diagram of a board assembly, and FIG. 7 is a perspective view of a state in which an electric wire is connected to the LED unit of the present invention and an electric wire cover is assembled, where (a) is a top perspective view and (b) is a bottom perspective view. In the figure 8 is a top view of the LED unit according to the present invention with the electric wires connected and the electric wire cover removed, FIG. 9 is a cross-sectional view of FIG. 8, and FIG. (B) is a BB sectional view, and FIG. 10 is a side view of a vehicle showing an example in which the LED unit of the present invention is used.

  In FIG. 1, the LED unit 1 includes a board assembly 2, a lens 3 that covers a later-described LED 7 (see FIG. 2) fixed below the board assembly 2, and the board assembly 2 and the lens 3 are inserted from above. And a cover 4 to be accommodated.

  The board assembly 2 includes a board 5, a press contact terminal 6 connected to an electric wire 40 (see FIG. 7) to be described later, an LED 7 (see FIG. 2) that is arranged on one surface of the board 5 and emits a desired color, and the board 5 The resistor 8 (refer to FIG. 2) disposed on the same surface as the LED 7 and the heat sink 9 disposed on the surface of the substrate 5 on the side where the LED 7 and the resistor 8 are not disposed. In addition, the board | substrate 5 in this embodiment is good also as a flexible printed circuit board which is flexible and can be changed greatly.

  The lens 3 is disposed on the light emission side of the LED 7 fixed to the substrate 5. The lens 3 includes a wall portion 10 that is formed vertically below the substrate 5 and has a substantially rectangular shape when viewed from above, a pair of first ribs 11 that protrude inward from the short side of the wall portion 10 and sandwich the LED 7, and the wall portion 10 has a pair of second ribs 12 projecting inward from the long side and sandwiching the LED 7, and a convex condensing lens portion 13 that is located below the wall portion 10 and condenses light emitted from the LED 7. doing. On the upper surface of the wall 10, a protrusion 14 that abuts against the substrate 5 is provided. The first rib 11 is formed at the same height as the wall portion 10, and the second rib 12 is formed at approximately half the height of the first rib 11. In addition, you may form the 1st rib 11 and the 2nd rib 12 at the same height. The condensing lens unit 13 is made of a transparent material.

  The cover 4 has a substantially rectangular parallelepiped shape with the top opened to accommodate the substrate assembly 2 and the lens 3 from above. One side of the cover 4 in the longitudinal direction is provided with a housing space 15 that is substantially rectangular in top view. The accommodation space 15 has a bottom plate portion 16 below, and a substantially central portion of the bottom plate portion 16 is opened in a circular shape to form an opening portion 17 that exposes the condenser lens portion 13 of the lens 3. In the accommodation space 15, the lens 3, a main body portion 25 (see FIG. 2) described later of the substrate 5 in the substrate assembly 2, and the heat sink 9 are accommodated. At this time, the condenser lens portion 13 of the lens 3 is exposed from the opening 17. In addition, a pair of locking pieces 18 projecting inwardly are provided on the side surfaces facing the width direction of the accommodation space 15. The locking piece 18 has elasticity. The locking piece 18 has a hypotenuse 19 that extends downward from above and a base 20 that is parallel to the bottom plate 16. When a later-described main body portion 25 and a heat radiating plate 9 of the substrate 5 in the substrate assembly 2 slide down the oblique side portion 19 by utilizing the elasticity of the locking piece 18, a main body portion 25 and a heat radiating plate 9 described later of the substrate 5 will be described. Is restricted by the bottom side 20 of the locking piece 18 from moving upward. At this time, the lens 3 moves downward without touching the locking piece 18. Further, on the other side in the longitudinal direction of the cover 4, a front end portion accommodating groove 21 for accommodating a later-described distal end portion 26 (see FIG. 2) of the substrate 5 in the substrate assembly 2 is formed in the longitudinal direction of the cover 4. . Four tip receiving grooves 21 are provided in parallel (the same number as the tip 26 described later of the substrate 5). Moreover, the electric wire positioning piece 22 standingly provided between the front-end | tip part accommodation grooves 21 and the edge of the width direction of the front-end | tip part accommodation groove 21 is provided. The electric wire positioning piece 22 is erected from the bottom of the cover 4, and has four notches 23 for passing an electric wire 40, which will be described later, along the longitudinal direction of the tip receiving groove 21 (described later). The same number as the electric wire 40). The notch 23 for passing the electric wire is formed by cutting the electric wire positioning piece 22 from the edge of the electric wire positioning piece 22 away from the cover 4 toward the cover 4. The electric wire positioning piece 22 positions the electric wire 40 on the surface of the cover 4 through the electric wire 40 described later through the notch 23 for passing the electric wire. Further, four electric wire receiving grooves 24 are provided in a direction perpendicular to the tip end receiving groove 21 (a direction facing the electric wire positioning piece 22). The electric wire accommodation groove 24 is formed in a concave shape so as to accommodate an electric wire 40 described later.

  In FIG. 2, the substrate 5 of the substrate assembly 2 has a flat plate shape, and has a substantially rectangular main body portion 25 and a tip portion 26 that protrudes from one side of the main body portion 25 in a comb shape. The comb-shaped tip portion 26 has a first tip portion 27, a second tip portion 28, a third tip portion 29, and a fourth tip portion 30. The first tip portion 27, the second tip portion 28, the third tip portion 29, and the fourth tip portion 30 have different lengths. The shortest one is the first tip portion 27 and the second shortest portion is the second. The third tip portion 29 is the third shortest portion, and the fourth tip portion 30 is the longest. Solder portions 31 for soldering the press contact terminals 6 are provided at the tips of the first tip portion 27, the second tip portion 28, the third tip portion 29, and the fourth tip portion 30. Further, a soldering portion 32 for soldering the resistor 8 is provided on the base side of the first tip portion 27, the second tip portion 28, and the third tip portion 29 in the main body portion 25 of the substrate 5, and further soldering Adjacent to the attaching part 32, a soldering part 33 for soldering the LED 7 is provided. Solder paste is printed on the soldering portions 31, 32, and 33 for soldering in a reflow furnace described later.

  Four press contact terminals 6 of the board assembly 2 are provided corresponding to the number of the front end portions 26 of the board 5. The press contact terminal 6 is adjacent to a rectangular and flat base portion 34, a first fixing portion 35 standing vertically from the short side of the base portion 34 to the base portion 34, and a side where the first fixing portion 35 is formed. A second fixing portion 36 standing upright from the long side perpendicular to the base portion 34 and a pair of pressure contacts standing upright from the base portion 34 toward the opposite side of the first fixing portion 35 and the second fixing portion 36 And a blade 37. The base portion 34 is soldered to the soldering portions 31 of the first tip portion 27, the second tip portion 28, the third tip portion 29, and the fourth tip portion 30 of the substrate 5. The pressure contact terminal 6 is moved by grasping the first fixed portion 35 and the second fixed portion 36 with a jig such as a chuck. Thereafter, the pressure contact terminal 6 is moved to the first tip portion 27, the second tip portion 28, and the third tip. The part 29 and the fourth tip part 30 are mounted. The pair of press contact blades 37 have a notch 38 in which the press contact blade 37 is cut from the edge on the side away from the base portion 34 toward the base portion 34. The press contact blade 37 inserts an electric wire 40 to be described later into the notch 38, cuts out a covering portion (no reference symbol) of the electric wire 40 at the inner edge portion of the notch 38, and cores the electric wire 40 (no reference symbol). Is brought into pressure contact with the wire 40. Thus, the press contact terminal 6 is connected to the electric wire 40 by the press contact between the press contact blade 37 and the electric wire 40. For such press contact, a tool such as a press punch 42 described later is used.

  As the LED 7 of the board assembly 2, generally known ones are used. In the present embodiment, an RGB type LED that emits a desired color by adjusting the ratio of red, green, and blue is used. The LED 7 is soldered to a soldering portion 33 provided on the main body portion 25 of the substrate 5.

  As the resistor 8 of the board assembly 2, a generally known resistor is used. The resistor 8 is soldered to a soldering portion 32 provided on the base side of the first tip portion 27, the second tip portion 28, and the third tip portion 29 in the main body portion 25 of the substrate 5.

  The heat sink 9 of the board assembly 2 is generally a known one. The heat radiating plate 9 is formed of a heat radiating material such as a metal having high thermal conductivity such as aluminum or copper, or a resin made of metal or ceramics. By using the heat sink 9, the heat of the LED 7 can be efficiently radiated. In addition, the shape of the heat sink 9 is not particularly limited. For example, a plurality of fins are provided and have a flat surface for fixing to the substrate 5.

  In FIG. 3, a process of mounting the press contact terminal 6, the LED 7, and the resistor 8 configured as described above on the substrate 5 will be described. First, the substrate 5 is placed on the reflow receiving jig 39 so that the soldering portions 31, 32, 33 of the substrate 5 are on the upper surface. Next, the base 34 of the press contact terminal 6 is soldered to the board so that the first fixed portion 35 and the second fixed portion 36 of the press contact terminal 6 face upward, that is, the press contact blade 37 of the press contact terminal 6 faces downward. It is mounted on the attaching part 31. At this time, the first fixing portion 35 and the second fixing portion 36 of the press contact terminal 6 can be held and moved by a jig such as a chuck. Further, the LED 7 is mounted on the soldering portion 33 of the substrate 5, and the resistor 8 is mounted on the soldering portion 32 of the substrate 5. In this manner, with the press contact terminal 6, the LED 7, and the resistor 8 mounted at predetermined positions on the substrate 5, the press contact terminal 6, the LED 7, and the resistor 8 are soldered to the substrate 5 in a reflow furnace. FIG. 4 shows the assembled product up to this point. Finally, as shown in FIG. 5, the heat sink 9 is fixed to the back side of the assembly formed up to the state of FIG. 4, that is, the surface where the LED 7 and the resistor 8 are not mounted in the main body 25 with a double-sided tape or the like. The substrate assembly 2 is completed by fixing by means.

  A circuit diagram of the board assembly 2 assembled in this manner is shown in FIG. In FIG. 6, power is supplied from the fourth tip 30, a red signal is transmitted through the first tip 27, a green signal is transmitted through the second tip 28, and a blue signal is transmitted through the third tip 29. Is transmitted. In addition, it becomes possible to make desired color light-emit from LED7 by controlling red, green, and blue appropriately.

  The substrate assembly 2 and the lens 3 assembled in this way are accommodated in the cover 4, and then the electric wire 40 is pressed against the press contact blade 37 of the press contact terminal 6 by a press contact process described later. The electric wire 40 is brought into pressure contact with the pressure contact terminal 6 using a tool such as a pressure contact punch 42 (see FIG. 9). In this state, as shown in FIG. 7, an electric wire cover 41 for protecting the electric wire 40 is covered from above the cover 4. The wire cover 41 has a shape corresponding to the cover 4 so as to cover both the front end receiving groove 21 and the wire receiving groove 24 formed in the cover 4. As described above, the LED unit 1 can be used by fixing the LED unit 1 to the ceiling of the vehicle, for example, with the electric wire 40 and the electric wire cover 41 attached thereto.

  Here, the process of press-contacting the electric wire 40 to the LED unit 1 is demonstrated using FIG.8 and FIG.9. With the wire 40 inserted into the press contact blade 37 of the press contact terminal 6 of the LED unit 1, the press contact process is started. At this time, as shown in FIG. 9, the first fixing portion 35 of the press contact terminal 6 is inserted and fixed in the insertion hole 43 of the cover 4. Similarly, the second fixing portion 36 (not shown) is also inserted and fixed in another insertion hole (not shown). Further, at this time, the LED 7 is securely held from four directions by the first rib 11 and the second rib 12 formed inside the lens 3. At this time, the lens 3 and the cover 4 are in contact with each other in the vertical direction in FIG. 9, but it is understood that a clearance 44 is formed in the horizontal direction in FIG. That is, the lens 3 and the cover 4 are not fixed in the horizontal direction. Further, since the bottom portion 20 of the locking piece 18 formed on the cover 4 locks the upper surface of the heat sink 9, the vertical movement of the heat sink 9 and the lens 3 in FIG. 9 is restrained. I understand that. The method of press-contacting the press-contact blade 37 of the press-contact terminal 6 and the electric wire 40 may be a known method. For example, as shown in FIG.

  The LED unit 1 of the present invention assembled in this way is arranged on the ceiling 46 of the passenger compartment of the automobile 45 as shown in FIG. 10, and is used for, for example, a map lamp. Moreover, you may utilize for the headlamp 47 or the tail lamp 48 of the motor vehicle 45 as another utilization field.

  As mentioned above, according to this invention, LED7 and the lens 3 are being fixed integrally, and, thereby, the lens 3 and LED7 move together. Further, a clearance 44 is formed between the edge of the lens 3 and the cover 4 forming the opening 17, and the lens 3 can move within the clearance 44. At this time, the press contact terminal 6 provided at one end of the substrate 5 is fixed to the cover 4. Therefore, since the LED 7 and the lens 3 can be moved integrally, for example, even if expansion / contraction of the substrate 5, mounting displacement of the press contact terminal 6, or mounting displacement of the LED 7 occurs, these displacements are absorbed and the substrate 5 is absorbed. The effect is that no stress occurs. Further, according to the present invention, the LED 7 is securely held by the first rib 11 and the second rib 12 provided inside the lens 3. Thereby, the positions of the lens 3 and the LED 7 are determined, and the centering of the lens 3 and the LED 7 is accurately performed. That is, the positioning of the lens 3 is performed with reference to the LED 7. In addition, the latch piece 18 and the cover 4 provided on the cover 4 sandwich the substrate 5 and the lens 3, thereby preventing the substrate 5 and the lens 3 from moving vertically with respect to the latch piece 18. 5 and the lens 3 are allowed to slide in a direction along the locking piece 18. At this time, the LED 7 and the lens 3 move together. Therefore, for example, even if expansion / contraction of the substrate 5, mounting displacement of the pressure contact terminal 6, or mounting displacement of the LED 7 occurs, these displacements are absorbed, and the center of the lens 3 and the LED 7 can always be aligned. Play. Furthermore, according to the present invention, the press contact terminal 6, the LED 7, and the lens 3 are fixed at positions separated on the substrate 5. Therefore, at the time of pressure contact, it is possible to suppress the impact applied to the pressure contact terminal 6 from being transmitted to the LED 7, and as a result, for example, the effect of reducing the mounting displacement of the LED 7 can be achieved. Furthermore, there exists an effect that damage of LED7 can be reduced.

1, 49 LED unit 2 Substrate assembly 3, 51 Lens 4 Cover 5 Substrate 6 Press contact terminal 7, 56 LED
DESCRIPTION OF SYMBOLS 8 Resistance 9,54 Heat sink 10 Wall part 11 1st rib 12 2nd rib 13 Condensing lens part 14 Protrusion part 15 Accommodating space 16 Bottom plate part 17, 60 Opening part 18 Locking piece 19 Oblique side part 20 Bottom side part 21 Tip part Housing groove 22 Electric wire positioning piece 23, 38 Notch 24 Electric wire receiving groove 25 Body portion 26 Tip portion 27 First tip portion 28 Second tip portion 29 Third tip portion 30 Fourth tip portion 31, 32, 33 Soldering portion 34 Base part 35 First fixing part 36 Second fixing part 37 Pressure contact blade 39 Reflow receiving jig 40 Electric wire 41 Electric wire cover 42 Pressure contact punch 43 Insertion hole 44 Clearance 45 Automobile 46 Ceiling 47 Head lamp 48 Tail lamp 50 Case 52 Substrate 53 Thermal conductive sheet 55 Base part 57 Connector 58 Engagement part 59 Positioning part

Claims (3)

A substrate, an LED mounted on one surface of the substrate, a lens disposed on a light emission side of the LED, an opening that accommodates the substrate, the LED, and the lens and exposes the lens And an LED unit configured to include:
Fixing a press contact terminal for press-contacting an electric wire to one end of the substrate, fixing the press contact terminal to the cover, and
The LED unit, wherein the lens and the LED are fixed together, and a clearance is provided between edges of the lens and the opening forming the cover. The LED unit according to claim 1,
Provided inside the lens are a plurality of ribs that sandwich the LED and center the lens and the LED; and
A locking piece is provided on the inner side of the cover to lock the other surface of the substrate to suppress the movement of the lens and the LED, and the lens disposed on one surface of the substrate touches the cover. LED unit characterized by contact. In the LED unit as described in any one of Claims 1-2,
Fixing the press contact terminal to one end in the longitudinal direction of the substrate;
The LED and the lens are fixed to the other end in the longitudinal direction of the substrate.

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