JP3504124B2 - LED lamp and LED lamp assembly - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an LED lamp and an LED lamp assembly. More specifically, according to the present invention, when assembled in a set, a wiring member such as a lead wire is press-fitted into a slit formed in an outer lead, so that a simple connection can be made without requiring soldering. L is suitable for use when fixing a large number of LED lamps along a three-dimensional curved surface, for example.
ED lamp and LED lamp assembly.

[0002]

2. Description of the Related Art LEDs (Light Emitting Diodes: Light-
Emitting diode lamps have the characteristics of low power consumption, high efficiency, high brightness, small size and light weight, and high reliability, and are also used as light sources for various display devices and signals, or as light sources for various in-vehicle lamps. Widely used.

FIG. 14 is a schematic view illustrating the configuration of a conventional LED lamp. That is, the LED lamp 100
Is a resin-sealed portion sealed by the sealing resin 105,
Outer lead 102A protruding from the sealing resin 105
And 103A. Inside the encapsulating resin 105, inner leads 102B and 103B, which are continuously formed with the outer leads 102A and 103A, are encapsulated. Inner lead 10
The LED chip 101 is mounted on 2B by a conductive paste or the like. Also, LED chip 1
Electrode formed on the upper surface of 01 and inner lead 10
3B is connected by a bonding wire 104.

In order to incorporate such an LED lamp into various kinds of lamps and display devices, soldering has been conventionally required.

FIG. 15 is a schematic view showing a state in which a conventional LED lamp is incorporated in various devices. That is, in the example shown in the figure, through holes 108, 108 are provided in the printed circuit board 106, and the outer leads 102A, 103A are inserted into these through holes, so that the solder 1
It is fixed by 07. The outer leads 102A and 103A of the conventional LED lamp have a prismatic shape with one side of about 0.5 mm in order to be inserted into the through hole of the printed circuit board as described above.

By inserting this into a through hole of the printed circuit board 106 and soldering it, it is mechanically fixed and at the same time electrical continuity is secured to form a circuit.

[0007]

However, the conventional LED lamp as described above has the following problems.

That is, in the mounting method as shown in FIG. 15, the pattern is mounted on the printed circuit board by soldering. At this time, it is necessary to heat the outer leads. For example, when soldering in a solder bath, it is necessary to immerse the outer leads and the printed circuit board in high temperature molten solder (about 250 to 270 ° C.). Met.

However, the sealing resin 105 used in the LED lamp often uses a transparent resin in order to efficiently extract light, and its glass transition point is extremely low at about 100 to 150 ° C. Therefore, when the high-temperature solder is brought into contact with the sealing resin 105, the sealing resin 105 is heated and softened and deformed, and excessive stress may be applied to the bonding wire or the LED chip 101 may be peeled off. It was

Further, in order to suppress such heating of the sealing resin, it has been limited to use a material having a high thermal conductivity for the outer leads.

Further, in order to perform soldering, a dedicated process and dedicated equipment are required. On the other hand, it is desirable to suppress the use of lead (Pb) contained in normal solder from the viewpoint of the influence on the human body and environmental management.

The present invention has been made in view of the above problems. That is, an object thereof is to provide an LED lamp capable of forming an electric circuit by press-fitting a wire into a slit portion formed in a lead without using soldering when the LED lamp is assembled into a set. is there.

[0013]

That is, the LED lamp according to the present invention includes an inner lead and an inner lead.
LED chip mounted on a lead and the LED
A sealing resin arranged so as to cover the periphery of the chip,
A plurality of outer leads that are electrically connected to the anode and the cathode of the LED chip and project outward from the sealing resin;
At least one of the leads is bent in a U-shape, and has a slit continuously extending along the longitudinal direction of the outer lead across both sides of the folded portion, A wiring member for supplying electric power to the lamp is configured to be press-contacted and fixed to each of the slit portions formed on both sides of the folded portion, and by pressing the wiring member into the slit. The wiring member can be pressed and fixed at two points, and electrical connection and mechanical fixing can be easily performed without soldering.

Further, at least one of the outer leads is bent in a U shape, and is formed continuously along the longitudinal direction of the outer lead across both sides of the folded portion. A wiring member for supplying electric power to the LED lamp is configured so as to be press-contacted and fixed to each of the slit portions formed on both sides of the folded portion, thereby providing a wiring member. On the other hand, it can be pressed and fixed at two points, and the fixing strength can be further improved.

By providing a positioning guide hole at least between the sealing resin and the slit of the outer lead, it is possible to perform a bending process without causing a positional deviation, and at the time of assembling into a set. ,
It can be used as a fixing hole for fixing the LED lamp.

Further, the slit is configured such that the width of the opening into which the wiring member is press-fitted is wide and the width of the inner side thereof is narrow, so that the wiring member can be smoothly introduced into the slit and securely pressed into the slit. Can be fixed.

More specifically, the width of the slit opening is made equal to or larger than the width of the wiring member, and the width inside the slit is made smaller than the width of the wiring member so that the wiring member can be smoothly slit. It can be introduced into the inside of the slit and securely fixed in the slit. On the other hand, the outer lead is configured so as to have a wide portion at the tip protruding from the sealing resin, so that the slit can be easily formed and the strength of the outer lead can be increased.
When press-fitting the LED lamp, it becomes possible to easily apply pressure by chucking.

Further, by providing a wider convex portion in the wide portion of the outer lead, it is possible to fit the protrusion or the concave portion of the lamp holder and securely fix it.

Alternatively, when the outer leads have a width distribution and are accommodated in the lamp holder, the outer leads have a width slightly larger than the internal dimension of the lamp holder and the inner wall surface of the lamp holder. The LED lamp can be fixed to the lamp holder by increasing the fixing force of the LED lamp.

Here, as the material of the outer lead, copper (Cu) having an appropriate spring property and high thermal conductivity is used.
It is desirable to use an alloy containing as a main component. More specifically, it contains copper as a main component and contains iron (Fe) or tin (Sn) in an amount of several% or less, or both iron (Fe) and tin (Sn) in an amount of several% or less, and It is desirable to use an alloy containing a small amount of phosphorus (P). Here, by adding iron (Fe) or tin (Sn), the “hardness” can be dramatically increased. Furthermore, by containing phosphorus (P), "springiness"
Can be improved.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic perspective view showing an LED lamp according to a first embodiment of the present invention. That is, LE
The D lamp 10 includes a resin portion sealed with a sealing resin 15 and an outer lead 12 protruding from the sealing resin 15.
A and 13A. The internal configuration of the sealing resin 15 is
For example, it can be similar to the above-mentioned conventional LED lamp, such as inner leads 12B and 13B, LED
Chip 11 and bonding wire 14 for connection
Are provided as appropriate.

In the present invention, the outer lead 12
The widths of A and 13A are widened outside the resin 15, and slits 19 and 19 are provided in this portion.
A wiring member such as a wire (not shown) is press-fitted into the slit and press-fitted to be electrically connected and mechanically fixed.

The slit 19 has a width of at least two steps. The first slit portion 19A provided on the slit opening side has a width that is about the same as or slightly wider than the width of a wiring member such as a wire (not shown), and plays a role of being introduced into the slit when the wiring member is press-fitted. Have. The second slit portion 19B provided at the back has a width narrower than that of the wiring member, and by press-fitting while biting into a part of the wiring member, electrical connection is obtained and mechanically. It has a role as a pressure contact blade for fixing.

On the resin side of the slits 19, 19,
In order to disperse the force generated when a wiring member such as a wire is press-fitted to alleviate stress concentration, terminal portions 19D, 19D cut out in a semicircular shape are provided.

Further, outer leads 12A, 13A
In the vicinity of the base of the wide portion, convex portions 12C and 13C that are further widened in the width direction are provided, respectively. These protrusions are referred to as "lances" and the like, and when they are fixed to the lamp holder described later, they serve to fit the protrusions or recesses of the lamp holder to fix the LED lamp.

Here, in the vicinity of the base of the wide portion of the outer lead 13A, a hole for polarity determination as shown may be provided. That is, by providing a hole only on one outer lead, the polarity of the LED can be easily discriminated. In addition, by using "screws" or "pins" together with such holes, LED
The lamp can also be securely supported and fixed.

FIG. 2 is a schematic assembly diagram when the LED lamp 10 is incorporated in a set. That is, the LED lamp 1
0 is inserted and fixed in the lamp holder 22 together with the wire 20 as a wiring member. Where wire 20
Can be placed in the vicinity of the bottom of the slit 24 provided in the lamp holder 22 in advance, and can be introduced into the slit 19 provided in the outer lead of the LED lamp 10 when the LED lamp 10 is inserted. The wire 20 is introduced from the slit opening 19A, and is pressed and fixed in the middle of the narrow second slit portion 19B.

Protrusions 22C and 22C are provided near the internal opening of the lamp holder 22. These protrusions 22C are configured to fit with the protrusions 12C and 13C provided on the outer leads of the LED lamp, respectively, so that the LED lamp 10 does not easily come off from the lamp holder 22. You can

Here, as a result of trial production by the present inventor, when the material of the outer lead is a relatively soft material such as aluminum or pure copper, a sufficient pressure contact force is exerted on the wiring member such as the wire. It was not obtained, and there was a tendency that the fixing strength was insufficient. Further, when the outer lead was formed using iron, the pressure contact force with respect to the wiring member was good,
It was found that rust may occur in a short time and progress, which is not preferable from the viewpoint of reliability. On the other hand, when a solder material or the like is applied to the contact surface with the wiring member, the fixing strength of the wiring member tends to decrease. this is,
It is presumed that this is because materials such as solder produce a lubricating effect. Based on the above prototype results, it is desirable that the outer lead material be an alloy containing copper as a main component and copper (Cu) having a proper spring property and high thermal conductivity as a main component. Do you get it. More specifically, it contains copper as a main component and contains iron (Fe) or tin (Sn) in an amount of several% or less, or both iron (Fe) and tin (Sn) in an amount of several% or less, and It is desirable to use an alloy containing a small amount of phosphorus (P). Here, by adding iron (Fe) or tin (Sn), the “hardness” can be dramatically increased. Further, by containing phosphorus (P), the "springiness" can be improved.

According to the present invention, the LED lamp 10 can be electrically connected and mechanically fixed by simply pressing the LED lamp 10 together with the wire 20 into the lamp holder 22. Therefore, since soldering is not required, the assembly process can be simplified and the manufacturing equipment can be simplified. Further, it is possible to solve various problems caused by the softening of the sealing resin 15 due to heating as described above. Further, since it is not necessary to use harmful lead (Pb), it is extremely preferable from the viewpoint of environmental measures.

Further, according to the present invention, a step portion is provided on which the outer leads 12A, 13A project in the width direction. Sealing resin 1 when incorporating the LED lamp into the set
By chucking the outer lead and pushing this step without chucking 5,
The lamp can be press-fitted into the lamp holder and fixed in pressure contact with the wiring member. Therefore, it is possible to obtain an effect that the sealing resin 15 can be easily incorporated into the set without damaging the sealing resin 15. Further, in this case, if the widthwise ends of the outer leads are configured to project beyond the projected outer shape of the sealing resin from the head side, this projecting portion is chucked in the LED lamp press-fitting process. Since the pressure can be easily applied by applying a king, it is more advantageous in manufacturing.

Further, conventionally, since a through hole is provided and fixed in a flat printed circuit board or the like, a plurality of LEDs are used.
It was difficult to arrange the lamp on an arbitrary curved surface.
However, according to the present invention, by disposing the lamp holder on a predetermined curved surface, it is possible to easily arrange a large number of LED lamps on an arbitrary three-dimensional curved surface.

FIG. 3 is a schematic view illustrating a state in which the LED lamps according to the present invention are arranged on a curved surface. That is,
In the figure, the lamp holder 22 is appropriately arranged on the base member B having a step along a predetermined curved surface, and the LED lamp 10 is inserted and fixed together with the connecting wire 20. Thus, by disposing the lamp holder on the base member having a predetermined shape, the LED lamps 10 can be easily arranged on an arbitrary three-dimensional curved surface. As a result, various curved lamps and display devices such as automobile tail lamps can be constructed much more easily than in the past.

2 and 3, the case where the LED lamp 10 is fixed by using the lamp holder 22 is illustrated. However, according to the present invention, the LED lamp can be fixed without using such a lamp holder. For example, the LED lamp is electrically connected by press-fitting the slits 19, 19 of the outer leads 12A, 13A of the LED lamp to a wire or other wiring member that is fixed in advance by a predetermined method. Can be mechanically fixed together. In this case,
By appropriately selecting the shape of the wiring member, “rattle” of the LED lamp 10 can be suppressed and the fixing strength can be further improved.

Next, a second embodiment of the present invention will be described. FIG. 4 shows L according to the second embodiment of the present invention.
It is a 3rd figure showing the schematic structure of an ED lamp. Also, FIG.
FIG. 3 is a schematic perspective view thereof. That is, the LED lamp 3
Reference numeral 0 indicates a resin portion sealed by the sealing resin 35 and outer leads 32A, 33A protruding from the sealing resin 35.
Have and. The internal structure of the sealing resin 35 can be, for example, the same as that of the above-described conventional LED lamp, and inner leads, LED chips, connecting wires, etc. are appropriately provided.

In the present embodiment, the width of the outer leads 32A and 33A is widened outside the resin 35, and is further folded back into the letter "U". Then, slits 39, 39 are provided along the longitudinal direction of the outer lead across the both sides of the folded portion F. The slit 39F of the folded-back portion F has a width that is approximately the same as or slightly wider than the width of a wiring member such as a wire (not shown). Further, the slits 39E and 39G on both sides of the folded-back portion F are formed so that the width thereof becomes narrower as the distance from the folded-back portion F increases, and the width in the middle thereof is formed so as to be narrower than that of a wiring member (not shown). There is. Further, the end portions of these slits 39E and 39F have end portions 39D and 39D cut out in a semicircular shape in order to disperse the stress when the wiring member is press-fitted and alleviate the stress concentration.

A wiring member (not shown) such as a wire is introduced through the wide slit 39F of the folded portion F, and is pressed into the slits 39E and 39G on both sides of the folded portion to be electrically connected and mechanically fixed. be able to.

Also in this embodiment, the lamp holder as described above with reference to FIG. 2 may be used, or the LED lamp 30 may be fixed only by the wiring member. Further, in order to fix the LED lamp 30 to a lamp holder (not shown), protrusions similar to the protrusions 12C and 13C described above with reference to FIG. 1 may be provided. Alternatively, as shown in FIG. 4, the outer leads 32A, 3A
A step S may be provided in the wide portion of 3A so that the width of the base is slightly widened, and when the base is inserted into the lamp holder, it may be fixed in pressure contact with the inner wall surface of the lamp holder. .

Further, as shown in FIGS. 4 (a), (b) and (c), "lances" or protrusions are provided at the bases of the wide portions of the outer leads 32A, 33A to attach the lamp holders to the lamp holders. It may be fixed. Here, the "lance" shown in FIGS. 9A to 9C is merely an example, and a lance having an optimal shape and size can be provided in accordance with the structure of the lamp holder (not shown).

In this embodiment, the outer /
Guide holes H are provided at both ends of the wide portions of the leads 32A and 33A, respectively. This guide hole H is
It is necessary to prevent misalignment during lead bending. That is, when the outer lead is installed in a predetermined bending machine and bending is performed, a guide pin is provided on the support base of the bending machine, and the guide hole H of the outer lead is inserted into this guide pin. Positional deviation can be eliminated. Also, this guide hole H
Can also be used as a hole for fixing the LED lamp when it is incorporated in the set. Further, as shown in FIG. 5, the guide hole on the tip side of the outer lead 32A may be omitted so that the polarity of the LED can be determined.

Next, a third embodiment of the present invention will be described. FIG. 6 shows L according to the third embodiment of the present invention.
It is a schematic perspective view showing an ED lamp. Ie LED
The lamp 40 includes a resin portion sealed with a sealing resin 45 and an outer lead 42 protruding from the sealing resin 45.
A and 43A. The internal structure of the sealing resin 45 is
For example, the LED lamp may be similar to the LED lamp of the above-described embodiment, and detailed description thereof will be omitted.

In the present embodiment, the outer leads 42A and 43A are protruded outside the sealing resin 45 and folded back, and the slit 49 is formed in the light extraction direction.
Is provided. The slit 49 has an appropriate width distribution in the vicinity of the opening, in the middle, and at the end as in the case described above with reference to FIG.

FIG. 7 is a schematic cross-sectional view illustrating a state in which the LED lamp 40 is incorporated in the set. That is, L
When installing the ED lamp 40, the set envelope 48
At the same time that the sealing resin portion 45 is inserted and fixed in the opening provided in the wire, the wires 20, 20 and the slits 49, 49 can be pressure-contacted and connected.

Next explained is the fourth embodiment of the invention. FIG. 8 shows L according to the fourth embodiment of the present invention.
It is a schematic perspective view showing an ED lamp. Ie LED
The lamp 50 has a resin portion sealed with a sealing resin 55 and an outer lead 52 protruding from the sealing resin 55.
A and 53A. The internal structure of the sealing resin 55 is
For example, the LED lamp may be similar to the LED lamp of the above-described embodiment, and detailed description thereof will be omitted.

In the present embodiment, the outer leads 52A and 53A are provided with slits 59, 59 which are open laterally with respect to the longitudinal direction thereof.
Also in the present embodiment, it is desirable to provide the same width distribution as in the above-described embodiments in the vicinity of the opening of the slit 59, in the middle, and at the terminal end. According to the present embodiment, the same effect as that of the embodiment described above with reference to FIG. 1 can be obtained. Further, since the opening direction of the slit 59 is horizontal, the LED lamp 50 can be pulled out in the light extraction direction. It is possible to obtain an effect that a wiring member (not shown) such as a wire is hard to come off from the slit even when a great stress is applied.

Next explained is the fifth embodiment of the invention. FIG. 9 shows L according to the fifth embodiment of the present invention.
It is a schematic perspective view showing an ED lamp. Ie LED
The lamp 60 includes a resin portion sealed with a sealing resin 65 and an outer lead 62 protruding from the sealing resin 65.
A and 63A. The internal structure of the sealing resin 65 is
For example, the LED lamp may be similar to the LED lamp of the above-described embodiment, and detailed description thereof will be omitted.

In the present embodiment, the outer leads 62A and 63A are provided with slits 69, 69 which are opened laterally with respect to the longitudinal direction thereof.
Also in the present embodiment, it is desirable to provide the same width distribution as in the above-described embodiments in the vicinity of the opening of the slit 69, in the middle, and at the terminal end.

FIG. 10 is a schematic assembly view illustrating a process of incorporating the LED lamp 60 into the set. That is, when the LED lamp 60 is assembled, the sealing resin portion 65 is inserted and fixed in the opening provided in the envelope 68 of the set, and at the same time, the wires 20, 20 and the slits 69, 69 are pressure-connected. You can

Also in this embodiment, the same effect as that of the embodiment described above with reference to FIG. 1 can be obtained. Further, in this embodiment, the outer leads 62A and 63A are L
Since it projects sideways with respect to the ED lamp 60, L
Even if a tensile or compressive stress is applied to the ED lamp 60 along the light extraction direction, it is possible to obtain an effect that the LED lamp is hard to come off from the lamp holder.

Next, a sixth embodiment of the present invention will be described. FIG. 11 is a four-sided view showing a schematic configuration of the LED lamp according to the sixth embodiment of the present invention. That is, the LED lamp 70 has a resin portion sealed with the sealing resin 75 and outer leads 72A and 73A protruding from the sealing resin 75. The internal configuration of the sealing resin 75 can be, for example, the same as that of the LED lamp of the above-described embodiment, and detailed description will be omitted.

In the present embodiment, the outer leads 72A and 73A are provided with slits 79, 79 which are open laterally with respect to the longitudinal direction thereof.
Here, the difference from each of the above-described embodiments is that the two outer leads 72A and 73A are arranged perpendicularly to the width direction. Also in the present embodiment, it is desirable to provide the same width distribution as in the above-described embodiments in the vicinity of the opening of the slit 79, in the middle, and at the terminal end. According to this embodiment, the same effect as that of the embodiment described above with reference to FIG. 1 can be obtained. Further, according to the present embodiment, since the two outer leads 72A and 73A are arranged vertically in the width direction, it is possible to widen the distance between these outer leads and to electrically short-circuit them. This makes it easier to prevent the occurrence of the problem and increases the degree of freedom in design.

Next, a seventh embodiment of the present invention will be described. FIG. 12 is a schematic four-view drawing showing an LED lamp according to a seventh embodiment of the present invention. That is, LE
The D lamp 80 includes a resin portion sealed with a sealing resin 85 and an outer lead 82 protruding from the sealing resin 85.
A and 83A. The internal structure of the sealing resin 85 is
For example, the LED lamp may be similar to the LED lamp of the above-described embodiment, and detailed description thereof will be omitted.

Also in this embodiment, as in the sixth embodiment, the two outer leads 82A and 83A are used.
Are arranged perpendicular to each other in the width direction. Each of the outer leads 82A and 83A has a wide portion, and the wide portions are folded back in opposite directions. Then, similarly to the LED lamp 30 shown in FIG. 4, slits 89, 89 are provided along the longitudinal direction of the lead, extending across both sides of the folded portion F. Also in this embodiment, it is desirable that the slit 89 has a width distribution similar to that of the second embodiment. According to this embodiment, the same effect as that of the embodiment described above with reference to FIG. 1 can be obtained, and since the wiring member such as the wire is press-contacted and fixed at each of two places, the mechanical strength is improved. Further, in this embodiment, two outer and
The distance between the leads 82A and 83A can be widened, it becomes easy to prevent an electrical short circuit, and the degree of freedom in design is increased.

Next, an eighth embodiment of the present invention will be described. FIG. 13 is a schematic three-view drawing showing an LED lamp according to an eighth embodiment of the present invention. That is, LE
The D lamp 90 includes a resin portion sealed with a sealing resin 95 and outer leads 92 protruding from the sealing resin 95.
A and 93A. The internal structure of the sealing resin 95 is
For example, it may be similar to the LED lamp of the above-described embodiment, and the lens 95A for condensing as shown may be provided on the resin here.

The present embodiment is different from the above-described series of embodiments in that the sealing resin 95 is formed in a flat shape, and the outer leads 92A, 93A project from the side opposite to the side surface thereof. .

Outer leads 92A and 93, respectively
A is bent in the direction opposite to the light extraction direction and has a wide portion, and in the wide portion, slits 99, 99 are formed along the longitudinal direction of the lead. Also in this embodiment, it is desirable that the slit 99 has a width distribution similar to that of each of the above-described embodiments. Also in this embodiment,
The same effect as the embodiment described above with reference to FIG. 1 is obtained,
Further, since the sealing resin has a flat shape, the LED
It is suitable for use when it is necessary to reduce the height of the lamp.

The embodiments of the present invention have been described with reference to specific examples. However, the present invention is not limited to these specific examples. For example, inside the encapsulating resin, the L
In addition to the structure in which the ED chip is mounted and connected by wires, a structure in which a predetermined wiring pattern is formed on the inner leads or the mounting board and the LED chip is flip-chip mounted on this pattern good.

[0059]

The present invention is carried out in the form as described above and has the following effects.

First, according to the present invention, the LED lamp can be electrically connected and mechanically fixed to the wiring member only by press fitting. That is, since soldering is not required, the assembly process can be simplified and the manufacturing equipment can be simplified.

Further, according to the present invention, it is not necessary to heat the sealing resin. Therefore, problems such as wire breakage and LED chip peeling due to the softening of the sealing resin can be solved, and the reliability of the set and the manufacturing yield can be improved.

Further, according to the present invention, harmful lead (P
Since it is not necessary to use b), it is extremely preferable from the viewpoint of environmental measures.

On the other hand, according to the present invention, the step portion is provided in which the outer lead projects in the width direction. Therefore, LE
When assembling the D lamp into the set, the outer lead is chucked without chucking the encapsulating resin, and the step is pressed to press fit the LED lamp into the lamp holder and to the wiring member. It can be pressed and fixed. Therefore, it is possible to obtain an effect that the sealing resin can be easily incorporated into the set without damaging the sealing resin.

Further, according to the present invention, it is possible to easily realize an arbitrary arrangement of a large number of LED lamps on a three-dimensional curved surface, which is difficult with the conventional planar printed circuit board. As a result, the degree of freedom in designing various types of lamps and display devices incorporating LED lamps is increased, and it becomes possible to provide a set having various curved surfaces that could not be easily realized in the past. .

As described above, according to the present invention, it is possible to provide an LED lamp which can be easily and surely incorporated into a set without the need for soldering, which is a great industrial advantage.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an LED lamp according to a first embodiment of the present invention.

FIG. 2 is a schematic assembly diagram when the LED lamp 10 is incorporated in a set.

FIG. 3 is a schematic view illustrating a state in which LED lamps according to the present invention are arranged on a curved surface.

FIG. 4 is a trihedral view showing a schematic configuration of an LED lamp according to a second embodiment of the present invention.

FIG. 5 is a schematic perspective view of an LED lamp according to a second embodiment of the present invention.

FIG. 6 is a schematic perspective view showing an LED lamp according to a third embodiment of the present invention.

FIG. 7 is a schematic cross-sectional view illustrating a state where the LED lamp 40 is incorporated in a set.

FIG. 8 is a schematic perspective view showing an LED lamp according to a fourth embodiment of the present invention.

FIG. 9 is a schematic perspective view showing an LED lamp according to a fifth embodiment of the present invention.

FIG. 10 is a schematic assembly diagram illustrating a process of incorporating the LED lamp 60 into a set.

FIG. 11 is a trihedral view showing a schematic configuration of an LED lamp according to a sixth embodiment of the present invention.

FIG. 12 is a schematic three-view drawing showing an LED lamp according to a seventh embodiment of the present invention.

FIG. 13 is a schematic three-view drawing showing an LED lamp according to an eighth embodiment of the present invention.

FIG. 14 is a schematic view illustrating the configuration of a conventional LED lamp.

FIG. 15 is a schematic diagram showing a state in which a conventional LED lamp is incorporated in various devices.

[Explanation of Codes] 10, 30, 40, 50, 60, 70, 80, 90, 1
00 LED lamp 11, 101 LED chip 12A, 13A, 32A, 33A, 42A, 43A, 5
2A, 53A, 62A, 63A, 72A, 73A, 82
A, 83A, 92A, 93A, 102A, 103A Outer leads 14, 104 Bonding wires 15, 35, 45, 55, 65, 75, 85, 95, 1
05 sealing resin 19, 39, 49, 59, 69, 79, 89, 99 slit 20 wiring member

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Junya Tate, 580-1, Horikawa-cho, Sachi-ku, Kawasaki City, Kanagawa Prefecture, Toshiba Semiconductor System Technology Center (72) Inventor, Kihachiro Uchida, Takanawa, Minato-ku, Tokyo 4-8-3 Koito Manufacturing Co., Ltd. (72) Inventor Tsutomu Machida Takanawa Takanawa Minato-ku, Tokyo 4-8-3 Koito Manufacturing Co., Ltd. (72) Inventor Masaru Harada Takanawa Minato-ku, Tokyo 4-8-3 Koito Manufacturing Co., Ltd. (72) Inventor Tomoaki Serizawa 4-8-3 Takanawa Minato-ku, Tokyo Koito Manufacturing Co., Ltd. (56) Reference JP 5-266954 ( JP, A) JP-A-7-111749 (JP, A) Actually open 63-182541 (JP, U) Actually open 6-54283 (JP, U) Actually open 1-73883 (JP, U) (58 ) Fields surveyed (Int.Cl. ⁷ , DB name) H 01L 33/00

Claims (10)

(57) [Claims] 1. An inner lead, an LED chip mounted on the inner lead, a sealing resin arranged so as to cover the periphery of the LED chip, and an anode and a cathode of the LED chip, respectively. An LED lamp comprising: a plurality of outer leads electrically connected to each other and protruding from the sealing resin to the outside, wherein at least one of the plurality of outer leads has a U shape. The wiring member for supplying electric power to the LED lamp has a slit formed by being bent and extending on both sides across the folded portion and continuously formed along the longitudinal direction of the outer lead. An LED which is configured to be press-contacted and fixed to the slit portions on both sides formed by sandwiching the portion. Amplifier. 2. The outer lead has a positioning guide hole at least at least between the sealing resin and the slit or between the tip and the slit. LED lamp. 3. The slit is arranged on the opening side into which the wiring member is press-fitted, and has a first slit portion having a first width and a second width smaller than the first width. The LED according to claim 1 or 2, wherein the wiring member has a second slit portion to which the press contact is fixed.
lamp. 4. The wiring member has a substantially circular cross-sectional shape, the first width of the first slit portion is greater than or equal to the diameter of the wiring member, and the second slit portion is The LED lamp according to any one of claims 1 to 3, wherein the second width is smaller than the diameter of the wiring member. 5. Each of the plurality of outer leads is formed so as to project from the same surface of the sealing resin in substantially parallel to each other, and is in contact with the sealing resin, and has a first width. The LE according to any one of claims 1 to 4, wherein the LE has one lead portion and a second lead portion having a second width larger than the first width.
D lamp. 6. The outer lead is located outside the resin projected outer shape as viewed from the light extraction side of the sealing resin.
The LED lamp according to claim 5, wherein the ends of the leads in the width direction are configured to project. 7. The outer lead has a third lead portion larger than the second width between the first lead portion and the second lead, and the outer lead When the LED lamp is housed in the lamp holder, the third lead portion is fitted with a convex portion provided inside the lamp holder to fix the LED lamp to the lamp holder. The LED lamp according to claim 5 or 6, characterized in that 8. At least a part of the outer lead has a width slightly larger than an internal dimension of the lamp holder when it is accommodated in the lamp holder, and is pressed against an inner wall surface of the lamp holder. By doing the LED
7. The lamp according to claim 1, wherein the lamp is fixed to the lamp holder.
LED lamp according to item 1. 9. The LED lamp according to claim 1, wherein the outer lead is made of an alloy containing copper as a main component. 10. A lamp holder having an insertion opening at one end and slit-shaped openings on both side surfaces of the insertion opening, and the outer lead being inserted and fixed to the insertion opening of the lamp holder. An LED lamp assembly comprising: the LED lamp according to any one of claims 1 to 9;