JPH10188614A - Vehicle lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease the number of part items, to simplify manufacturing processes, to enhance reliability, and to reduce manufacturing costs by eliminating the need for a printed board and a soldering process. SOLUTION: A plurality of conductive metallic pieces 25 each having two press-in locking part 36 are placed between adjacent LEDs(light-emitting diodes) 8. The leads 13 of each LED 8 are pressed into the press-in locking parts 36 of two adjacent metallic pieces 25 to connect the plurality of LEDs 8 in series with each other via the metallic pieces 25. The metallic pieces 25 are pressed into engagement grooves 34 in a metallic-piece-mounting part 32 projected from the inner surface of a lamp body 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp using a light emitting diode (hereinafter, referred to as an LED) as a light source.

[0002]

2. Description of the Related Art Hitherto, as a vehicular lamp using an LED as a light source, a high-mount stop lamp (hereinafter simply referred to as a lamp) is known (Japanese Utility Model 5-302).
No. 47, etc.). This lamp is installed in the rear spoiler, on the roof, in the rear room, or the like, and is turned on together with the brake light at the time of a brake operation to alert a driver of a following vehicle and prevent a rear-end collision or the like.

FIG. 16 shows a high-mount stop lamp disclosed in Japanese Utility Model Publication No. 5-30247. The lamp 1 includes a lamp body 3 and a front lens 4 that constitute a lamp body 2, and is incorporated in an opening 6 of a rear spoiler 5 so that the front lens 4 is exposed to the outside. Lamp 2
It is formed long in the vehicle width direction and has a printed circuit board 7 inside.
And the inner lens 10 are incorporated. The printed wiring board 7 has a plurality of LEDs 8, a current controlling resistor 9 and a reverse current preventing diode (not shown) mounted on the front surface side thereof, and a lighting fixture via a contact spring (not shown) provided in the lighting body 3. It is connected to the side cord 11. The lamp-side cord 11 is led out of the lamp body 2 through a cord outlet 12 provided on the back side of the lamp body 3 and is connected to a power source (battery) via a vehicle-side cord (not shown).

[0004]

The above-described conventional lamp 1 has many manufacturing steps and has a problem in reliability. That is, conventionally, the LE has been
The lead 13 of D8, the lead 14 of the resistor 9 for current control and the lead of the diode for preventing reverse current (not shown) are automatically inserted into the lead insertion holes provided on the printed circuit board 7 and printed by a dip soldering method, a reflow soldering method or the like. It was soldered to the land of the wiring board 7. for that reason,
A soldering step and a cleaning step (removal of flux) of the printed wiring board are required, and the number of working steps increases. In addition, the equipment becomes large and the manufacturing cost increases. Further, when a large stress is applied to the solder connection portion, the solder is easily peeled, and there is a problem in reliability of soldering. In particular, in the case where the lamp shape is greatly curved as shown in FIG.
Since it is necessary to bend the printed wiring board 7 so as to match the lamp shape, a large stress is applied to the solder connection portion,
Solder is more easily peeled off, lowering reliability. further,
Since the printed wiring board 7 and the external cord 11 are connected via a leaf spring (not shown), a leaf spring is required, and the number of parts and the number of assembling steps increase.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. An object of the present invention is to eliminate the need for a printed wiring board and a soldering process, to reduce the number of components, to simplify the manufacturing process, and to reduce the number of components. It is an object of the present invention to provide a vehicular lamp capable of improving reliability and reducing manufacturing costs. Another object of the present invention is to provide a vehicular lamp suitable for being applied to a curved lamp mounted on a vehicle body corner or the like.

[0006]

According to a first aspect of the present invention, there is provided a vehicular lamp using a plurality of LEDs, the plurality of conductive metal pieces having a plurality of press-fitting engagement portions. The LED is electrically connected by the conductive metal piece by press-fitting and locking the two leads of the LED to press-fitting and locking portions of different conductive metal pieces. In the second invention, a plurality of LEs are provided.
A vehicle lighting device using a plurality of conductive metal pieces, each of which has two press-fitting locking portions and is disposed between adjacent LEDs. The plurality of LEDs are connected in series by press-fitting and locking the respective leads.
According to a third aspect of the present invention, there is provided a vehicle lighting device using a plurality of LEDs, comprising a plurality of conductive metal pieces having a plurality of press-fitting locking portions, and dividing the LEDs into a required number of LEDs. Each of the LEs is formed by a plurality of LED blocks, and each LED lead of each LED block is press-fitted and locked to a press-fitting locking portion of two different conductive metal pieces.
The LED in the D block is connected in parallel by the conductive metal piece, and each LED block is connected in series to a power supply. According to a fourth aspect of the present invention, there is provided a vehicle lighting device using a plurality of LEDs, wherein each of the LEDs has two press-fitting locking portions, and one lead of the LED adjacent to these press-fitting locking portions is press-fitted. A plurality of conductive metal pieces for connecting a plurality of LEDs in series, a power supply terminal and a ground terminal to which a vehicle body-side cord is connected, and a plus side metal connecting the metal piece and the power supply terminal. And a negative metal plate for connecting the metal piece and the ground terminal. Press-fit locking portions for terminal locking and electrical component locking are provided on the positive and negative metal plates, respectively. It is characterized by having been provided. Further, the fifth invention is characterized in that, in the invention of the above-mentioned 1, 2, 3, or 4, a metal piece mounting portion having a locking groove for press-fitting and locking the metal piece is provided in the lamp body housing the LED. I do.

In the present invention, the metal piece is L
The LEDs are connected in parallel or in series by press-fitting the leads of the ED. Therefore, a printed wiring board becomes unnecessary. Further, the soldering step and the accompanying cleaning step of the printed wiring board are not required. In addition, the press-fit locking portion between the metal piece and the metal plate locks electrical components such as an LED, a current control resistor, a diode for preventing reverse current, and a terminal by press-fitting, and connects these electrical components with the metal piece or the metal plate. Make an electrical connection. Therefore, the soldering step and the accompanying cleaning step of the printed wiring board are not required. The metal piece mounting portion locks the metal piece by the locking groove.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is a plan view showing an embodiment in which the present invention is applied to a high-mount stop lamp, in which a part is omitted and a cover is removed, FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, and FIG. FIG. 1 is a sectional view taken along line BB of FIG. 1.
FIG. 4 is a sectional view taken along line CC of FIG. 1, and FIG. 5 is a sectional view taken along line DD of FIG. The same components as those shown in the section of the prior art are denoted by the same reference numerals, and description thereof will be omitted as appropriate. In these figures, the high-mount stop lamp 20 includes a lamp body 21 in which a number of LEDs 8 are arranged in a horizontal line at a predetermined interval, and is incorporated in the rear spoiler 5. These LEDs 8
The four are considered as one block, and are divided into n LED blocks (described later).

The lamp body 21 is formed of a transparent synthetic resin colored in red and elongated in the vehicle width direction and has an elongated box-shaped lamp body 22 having an open upper surface, and a flat plate made of opaque synthetic resin, metal or the like. And a cover 23 that covers the upper opening of the lamp body 22.

The lamp body 22 includes the LED 8, the current controlling resistors 9 (91 to 9n), and the reverse current preventing diode 2.
4, conductive metal piece (also simply referred to as metal piece) 25, strip-shaped metal plate 26 (26A, 26B, 26C), terminal 2
7 (27A, 27B) and the like. A lens 28 composed of a large number of concave lenses (or convex lenses) is provided on the inner surface of the front portion 22a.
(FIG. 4) is integrally formed in correspondence with each LED 8, so that it also has a function as a front lens that condenses light emitted from the LED 8 and emits the light to the front of the lamp 20 (to the rear of the vehicle body).

Each LED is provided on the inner surface of the lamp body 22.
LED supporting portion 30 for positioning and supporting LED 8 and LED
A metal piece mounting portion 32 located on the rear side of the support portion 30 is integrally formed to protrude, and further behind the metal plate 26 is disposed along the inner surface of the lamp body 22. A relatively shallow trapezoidal recess 33 supporting the lower part of each LED 8 as shown in FIGS. 2, 4 and 5 is provided on the upper surface of the LED support 30.
Are formed at predetermined intervals in the longitudinal direction.
The metal piece attachment part 32 is formed to be substantially the same length as the LED support part 30 and higher than the LED support part 30, and a locking groove 34 into which the metal piece 25 is press-fitted is formed on the upper surface over substantially the entire length. The upper end opening of the locking groove 34 is open in a V-shape to facilitate insertion of the metal piece 25. Further, the locking groove 34 is provided as shown in FIG.
As shown in (1), each metal piece 25 is partitioned by a partition wall 34A so that adjacent metal pieces 25 are not short-circuited.

The metal piece 25 is formed by a thin conductive material such as copper, brass or the like into an upward U-shape as shown in FIG.
A pair of support portions 25b are provided integrally at both ends of 5a so as to extend upward, and a press-fit engagement portion 36 formed of a groove is formed at the center of the upper surface of each support portion 25b. The groove width of the press-fitting locking portion 36 is smaller than the lead diameter (or lead width) of the LED 8 and the current control resistor 9, and the opening is formed in a V-shape to facilitate press-fitting of the lead. For this reason, the press-fitting locking portion 36 is formed as a Y-shaped groove. When the leadless resistor 9 is used, the slit 36a and the lower end communicate with the slit 36a as shown in FIG. 9 may be formed as a press-fit engagement portion 36 having an upwardly opened round hole portion 36b into which the end portion 9 is press-fitted. In addition, the partition wall 3 is provided on the outer surface of each support portion 25b.
A detachment preventing claw 38 for preventing the metal piece 25 from coming out of the locking groove 34 by biting into the 4A is integrally provided with the projection. In this case, the height of the stopper 38 is different between the left and right support portions 25b. this is,
This is because the partition wall 34A is extremely thin, so that when the partition wall 34A is provided at the same height, the partition wall 34A is prevented from breaking through and coming into contact with each other. Such a metal piece 25 has a length substantially equal to the arrangement pitch of the LEDs 8, and the metal piece mounting portion 32
Is pressed into the locking groove 34 from above, and the retaining claw 38 of each support portion 25 bites into the partition wall 34A to prevent the retaining portion 25 from being released and locked. In this state, the upper end of each support portion 25b protrudes above the metal piece mounting portion 32 as shown in FIG. The press-fitting locking portions 36 of both support portions 25b correspond to one adjacent lead of two adjacent LEDs 8,8, respectively.

The metal plate 26 is formed of a thin conductive material, such as copper or brass, like the metal piece 25.
5 and terminals 27 (27A, 27B), the current control resistor 9, the reverse current prevention diode 2
4 to which three metal pieces 26 having different lengths are connected.
A, 26B and 26C. These metal plates 26A, 26B, 26C are connected to a locking portion 42, which is integrally provided at an end portion and an intermediate portion with a fixing portion 41 projecting integrally from the inner surface of the lamp body 22, as shown in FIGS. Press-fit fixed. The fixing portion 41 is formed by bending a tongue extending from the side edge of the metal plate 26 upward and by folding it in two, and has elasticity in the direction of the arrow in FIG. In this case, the structure for fixing the metal plate 26 to the lamp body 22 is not limited to the fixing structure in which the fixing portion 41 is press-fitted into the locking portion 42, but may be fixed by screws or caulking, or these fixing structures may be used in combination. May be fixed. Further, the metal plate 26 may be simultaneously formed by outsert molding when the lamp body 22 is molded.

The LED 8 is oriented sideways so that the optical axis coincides with the front-back direction of the lamp 20 and the two leads 1
3 are arranged in a horizontal row at a predetermined arrangement pitch so as to be arranged in a horizontal direction, a lower portion is supported by a concave portion 33 of the LED support portion 30, and two leads 13 are connected to the metal piece attaching portion 3.
2 and is press-fitted and locked to the press-fitting locking portion 36 of the metal piece 25. In this case, each LED 8 has two leads 13
As shown in FIG. 6, the press-fit locking portions 36 of the adjacent supporting portions 26b of the two adjacent metal pieces 25, 25
Are connected in series via the metal pieces 25. The LED 8 is divided into n LED blocks G1 to Gn connected in parallel to the power supply, and each of the LED blocks G1 to Gn includes four LEDs 8 connected in series. Further, the current control resistors 91 to 9n are connected in series to the LEDs 8 of the LED blocks G1 to Gn via the metal pieces 25, respectively. One of the two leads 14a and 14b of these current control resistors 91 to 9n
As shown in FIG. 1, the press-fit locking portion 36 of the metal piece 25
, And the other lead 14b is press-fitted and locked to a press-fitting locking portion 45 provided integrally with the metal plate 26B. The press-fit locking portion 45 of the metal plate 26B is also formed in the same manner as the support portion 25b of the metal piece 25, and is formed of a Y-shaped groove similar to that of the press-fit locking portion 36.
Has a locking groove 46 (FIG. 3) into which is press-fitted.

The terminal 27 comprises a power supply terminal 27A and a ground terminal 27B, and one end of the power supply terminal 27A is integrally provided on a metal plate 26C as shown in FIGS. 47 is press-fitted into the locking groove 48 of the ground terminal 27.
B has one end provided integrally with the metal plate 26B.
Is press-fitted into the locking groove. On the other hand, the other ends of the power supply and ground terminals 27A and 27B are connected to a cylindrical connector connecting portion 5 protruding from the center of the rear surface of the lamp body 22.
0, the vehicle body side code 51 is connected via a connector 52 (FIG. 4). Press-fit locking portion 4 of metal plate 26C
Numerals 7 extend from both side edges of the metal plate 26C and are bent upward as shown in FIG.
It consists of two metal pieces 47a and 47b, and two locking grooves 48 are formed at the upper end thereof. These locking grooves 48 are also formed in a Y-shape similarly to the press-fitting locking portions 36 of the metal pieces 25, and the terminals 27A are press-fitted. Note that the press-fitting locking portion 49 of the metal plate 26B is also formed exactly the same as the press-fitting locking portion 47.

At both ends and an intermediate portion of the metal plate 26A,
As shown in FIGS. 1 and 5, a plurality of extending portions 53 extending forward correspond to the first LED of each of the LED blocks G1 to Gn.
8, and a leading end thereof is bent upward at substantially a right angle to form a locking portion 55 having the same shape as the supporting portion 25 b of the metal piece 25. The locking portion 55 has a Y-shaped locking groove 56,
Notch 57 formed on the back side of metal piece mounting portion 32
And the upper end protrudes above the metal piece attaching portion 32. One lead 13 of the foremost LED 8 of each of the LED blocks G1 to Gn is press-fitted into the locking groove 56 of each locking portion 55.

FIG. 11 is a diagram showing an electric circuit of such a lamp 20. As shown in FIG. Three metal plates 26A, 26B, 26C
Among them, two metal plates 26A and 26C are for plus, and the remaining metal plate 26B is for ground. The LED 8 of each of the LED blocks G1 to Gn and the current controlling resistors 91 to 9n are connected in parallel to the metal plate 26A via the metal piece 25. The metal plates 26A and 26C are connected in series via a reverse current preventing diode 24. The metal plate 26B is
The LEDs 8 of the ED blocks G1 to Gn are connected to the ground terminal 27B. Note that the reverse current prevention diode 24 connects the lamp 20 to the power supply 100 with the switch 10.
LED when connected plus and minus reverse via 1
8 is for preventing destruction.

In such a lamp 20, the metal piece 2
5 is a locking groove 3 of the metal piece mounting portion 32 by an automatic insertion machine.
4 is press-fitted and locked. The metal plate 26 is attached to the lamp body 22 by engagement between the fixing portion 41 and the locking portion 42. The metal plate 26 can be mounted by an automatic insertion machine. Further, the mounting of the LED 8, the current control resistor 9, and the reverse current prevention diode 24 to the metal piece 25 and the metal plate 26 is also performed by press-fitting into the press-fit locking portion.
Mounting by an automatic insertion machine is possible. Terminal 27
For, the connection end side is bent up beforehand,
After the metal plates 26A, 26B, 26C are attached, the metal plates 26A, 26B, 26C may be returned to the original shape and press-fit into the metal plate 26C.

As described above, in the present invention, the metal piece 25
And an electric circuit of the lamp 20 using the metal plate 26 and
Since the electrical components such as the LED 8 are electrically and mechanically connected by being locked by press-fitting, a printed wiring board is not required, and a soldering step for the LED 8 and the like is not required. Therefore, it is possible to obtain a highly reliable lamp without fear of defective soldering.
Since the metal piece 25 is thin and small and can be deformed in the thickness direction as shown in FIG. 12, it is suitable for use in a lamp having a curved lamp shape as shown in FIG. Also, since the lead 13 of the LED 8 is locked by press fitting, there is no possibility that the lead 13 will come off due to some vibration or the like.
A good electrical connection can be obtained.

FIG. 13 is a sectional view showing another embodiment of the present invention. In this embodiment, a lamp body 2 is composed of a lamp body 3 made of synthetic resin and a front lens 4 having a U-shaped cross section which is fitted into the lamp body 3 and ultrasonically welded. Other configurations are the same as those of the above-described embodiment. With such a configuration, the same operation and effect as those of the above-described embodiment can be obtained.

FIG. 14 is a perspective view of a metal piece showing still another embodiment of the present invention, and FIG. 15 is an electric circuit diagram. In this embodiment, five conductive metal pieces 25A, 25B, 25C,...
One end of the left metal piece 25A is connected to the plus side of the power supply 100 via the switch 101, and one end of the right metal piece 25E is connected to the minus side of the power supply 100.

At one end of the metal pieces 25A, 25E at both ends, three LED mounting portions 105 having a press-fitting locking portion 36 formed of a Y-shaped groove are integrally protruded at a predetermined interval. The metal pieces 25B, 25C, and 25D have six LEs each having a press-fitting locking portion 36 also formed of a Y-shaped groove.
D mounting portions 105 are integrally provided at predetermined intervals. At the end of the first metal piece 25A on the side opposite to the power supply side, that is, behind the end where the LED mounting portion 105 is provided, the left half of the second connection piece 25B faces in parallel. The right half of the third connection piece 25B is bent forward and is positioned parallel to the front of the left half of the third connection piece 25C. The right half of the third connection piece 25C is:
It is bent forward and located in front of the left half of the fourth connection piece 25D. The right half of the fourth connection piece 25D is bent forward to form a fifth connection piece 25E.
The LED mounting portion 105 is located in front of and parallel to the end provided with the LED mounting portion 105. Thus, the second, third and fourth connection pieces 2
5B, 25C, and 25D are bent in the shape of a crank at the center in the longitudinal direction, so that the left half is located behind the right half of the immediately preceding metal piece, and the right half is the left half of the next metal piece. It is located on the front side. These metal pieces 25A,
The press-fitting locking portions 36 of 25B, 25C,... 25E do not face the press-fitting locking portions 36 of other metal pieces located on the front side or the rear side, and are shifted laterally by the lead interval of the LED 8.

Such metal pieces 25A, 25B, 25
In the arrangement of C,... 25E, the leftmost LED 8 is
One of the leads 23a is press-fitted into the press-fit locking portion 36 at the left end of the second metal piece 25B, and the other lead 23b is
The metal piece 25A is press-fitted into the press-fit locking portion 36 at the left end. Although the illustration of the second and subsequent LEDs 8 is omitted, the second and subsequent LEDs 8 are each locked by the press-fitting locking portions 36 of the two metal pieces in front and behind similarly to the left end LED 8. As a result, the LED 8 is divided into three from the left side to form four LED blocks G1 to G4.
The LEDs 8 in the blocks G1 to G4 are connected in parallel by metal plates facing each other in front and back, and four LED blocks G1
G4 are connected in series to the power supply 100. The other configuration is the same as that of the above-described embodiment.

In such a configuration, one current control resistor 9 may be used. Further, the metal plate 26 described above is not required.

[0025]

As described above, a vehicular lamp according to the present invention comprises a plurality of conductive metal pieces having a plurality of press-fitting locking portions in a vehicular lamp using a plurality of LEDs. By press-fitting the two leads of the LED to press-fitting lock portions of different conductive metal pieces,
Since the EDs are electrically connected by the conductive metal pieces, the soldering process of the printed wiring board and the LED and the accompanying cleaning process of the printed wiring board become unnecessary, and the manufacturing process of the lamp can be simplified, and the cost can be reduced. Can be manufactured. In addition, since it is securely locked by press-fitting, there is no possibility that it will come off. Furthermore, since the metal piece is deformable unlike a rigid printed wiring board, it is effective when applied to a curved lamp such as a lamp attached to a vehicle body corner or the like.

The present invention further comprises a plurality of conductive metal pieces having a plurality of press-fitting and locking portions, wherein the LEDs are divided into a required number of LEDs to form a plurality of LED blocks,
The LEDs in each LED block are connected in parallel by the conductive metal pieces by press-fitting and locking the respective leads of the LEDs of each LED block to the press-fitting locking portions of two different conductive metal pieces. Since the LED block is connected in series to the power supply, one current control resistor may be used, and the number of resistors can be reduced as compared with the case where the LED block is connected in parallel.

Further, according to the present invention, in a vehicular lamp using a plurality of LEDs, two press-fitting locking portions are provided, and one lead of the LED adjacent to these press-fitting locking portions is press-fitted. A plurality of conductive metal pieces for connecting a plurality of LEDs in series, a power supply terminal and a ground terminal to which a vehicle body side cord is connected, and a plus side for connecting the metal piece and the power supply terminal. A metal plate, and a negative-side metal plate connecting the metal piece and the ground terminal; and press-fitting locking portions for terminal locking and electrical component locking on the positive and negative metal plates, respectively. Is provided, electrical connection between the metal plate and electrical components such as terminals and resistors does not need to be soldered, and highly reliable connection can be obtained.

Further, according to the present invention, since the metal piece mounting portion having the locking groove for press-fitting and locking the metal piece in the lamp housing for storing the LED is provided, no screw or the like is required, and the mounting operation of the metal piece can be performed. It is easy and can improve the assembly workability.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment in which the present invention is applied to a high-mount stop lamp, in which a part is omitted and a cover is removed.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a sectional view taken along line CC of FIG. 1;

FIG. 5 is a sectional view taken along line DD of FIG. 1;

FIG. 6 is a perspective view of a metal piece.

FIG. 7 is a perspective view of a main part showing another embodiment of a metal piece.

FIG. 8 is a perspective view showing a state where a metal piece is mounted on a metal piece mounting portion.

FIG. 9 is a perspective view showing a fixing structure of a metal plate.

FIG. 10 is a perspective view of a metal plate and a terminal.

FIG. 11 is a diagram showing an electric circuit.

FIG. 12 is a perspective view showing another embodiment of the metal piece.

FIG. 13 is a cross-sectional view showing another embodiment of the present invention.

FIG. 14 is a perspective view showing still another embodiment of the metal piece.

FIG. 15 is a diagram showing an electric circuit.

FIG. 16 is a sectional view showing a conventional example of a high mount stop lamp.

FIG. 17 is a sectional view showing still another conventional example of a high mount stop lamp.

[Explanation of symbols]

Reference numeral 2: lamp body, 3: lamp body, 4: front lens, 7: printed wiring board, 8: LED, 9: current control resistor, 11
... External code, 13,14 ... Lead, 20 ... High mount stop lamp, 21 ... Light body, 22 ... Light body, 2
3 ... cover, 24 ... reverse current prevention diode, 25 ... metal plate, 26 ... metal plate, 27 ... terminal, 30 ... LED
Supporting portion, 32: metal piece attaching portion, 34: locking groove, 36: press-fitting locking portion, 39: lead, 45, 47, 49 ... press-fitting locking portion, 51: vehicle body side cord.

Claims (5)

[Claims] 1. A vehicular lamp using a plurality of LEDs, comprising: a plurality of conductive metal pieces having a plurality of press-fitting locking portions, wherein two leads of the LED are respectively connected to different conductive metal pieces. LED by press-fitting and locking to press-fit locking part
Are electrically connected by the conductive metal piece. 2. A vehicular lamp using a plurality of LEDs, comprising: a plurality of conductive metal pieces each having two press-fitting locking portions and arranged between adjacent LEDs; A vehicular lamp characterized in that a plurality of LEDs are connected in series by press-fitting and locking respective leads of the LEDs to mutually adjacent press-fitting locking portions. 3. A vehicular lamp using a plurality of LEDs, comprising: a plurality of conductive metal pieces having a plurality of press-fitting engagement portions; The LED in each LED block is connected in parallel by the conductive metal piece by pressing and locking each lead of the LED of each LED block to the press-fitting locking portion of two different conductive metal pieces. And a LED lamp connected in series to a power supply. 4. A vehicular lamp using a plurality of LEDs, wherein each of the plurality of LEDs has two press-fitting locking portions, and one of the leads of the LED adjacent to these press-fitting locking portions is press-fitted, respectively. A plurality of conductive metal pieces that connect the LEDs in series, a power supply terminal and a ground terminal to which the vehicle body side cord is connected, and a plus metal plate that connects the metal piece and the power supply terminal, A negative-side metal plate for connecting the metal piece and the ground terminal, and press-fitting locking portions for terminal locking and electrical component locking are provided on the positive and negative metal plates, respectively. A vehicle lighting device characterized by the following. 5. The vehicular lamp according to claim 1, wherein a metal piece mounting portion having a locking groove for press-fitting and locking the metal piece is provided in the lamp body for storing the LED. Vehicle lighting device.