JP2020121636A - Vehicle lighting device and vehicle lamp fitting - Google Patents

Abstract

To provide a vehicle lighting device which enables improvement of reliability of electric connection, and to provide a vehicle lamp fitting.SOLUTION: A vehicle lighting device according to an embodiment includes: a first base; a second base; and a light emitting part provided between the first base and the second base and having at least one light emitting element. The first base has: a first terminal part with which the light emitting part is electrically connected; and a first protruding part provided at one area of a first end surface, which is opposite to a light emitting part side, of the first terminal part. The second base has: a second terminal part with which the light emitting part is electrically connected; and a second protruding part provided at one area of a second end surface, which is opposite to the light emitting part side, of the second terminal part.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to a vehicle lighting device and a vehicle lamp.

BACKGROUND There is a vehicle lighting device including a pair of bases and an airtight container provided between the bases and containing a filament. In recent years, from the viewpoint of energy saving and long life, a vehicle lighting device including a filament has been replaced by a vehicle lighting device including a light emitting diode.
Therefore, there has been proposed a vehicle lighting device including a pair of bases in which a cylindrical portion and a conical portion are integrally formed, and a substrate provided between the bases and having a light emitting diode.

Such a vehicle lighting device is electrically connected to a power supply or the like by bringing the base into contact with a terminal provided on the vehicle lamp. For example, the conical portion is inserted into the hole provided in the terminal, and the side surface of the conical portion is brought into contact with the inner wall of the hole.

However, since the side surface of the conical portion makes line contact or point contact with the inner wall of the hole, there is a risk that the electrical resistance will fluctuate or the position will be displaced due to vibration during travel, and the reliability of the electrical connection will decrease. There is.
Therefore, it has been desired to develop a technique capable of improving the reliability of electrical connection.

JP 2004-241191 A

The problem to be solved by the present invention is to provide a vehicle lighting device and a vehicle lamp that can improve the reliability of electrical connection.

A vehicle lighting device according to an embodiment includes a first base, a second base, a first base, and a second base, and has at least one light emitting element. Sections and; The first base has a first terminal portion to which the light emitting portion is electrically connected; a region of a part of a first end surface of the first terminal portion opposite to the light emitting portion side. A first convex portion provided on the. The second base has a second terminal portion to which the light emitting portion is electrically connected; a region of a part of a second end surface of the second terminal portion opposite to the light emitting portion side. A second convex portion provided on the.

According to the embodiments of the present invention, it is possible to provide a vehicle lighting device and a vehicle lighting device that can improve the reliability of electrical connection.

FIG. 3 is a schematic perspective view for illustrating the vehicle lighting device according to the present embodiment. It is a model side view of the illuminating device for vehicles. (A)-(e) is a schematic diagram for illustrating the cross-sectional shape of the convex part in the direction orthogonal to the direction in which the pair of caps face each other. FIG. 3 is a schematic side view for illustrating the vehicular lamp according to the present embodiment. FIG. 8 is a schematic side view for illustrating a vehicle lighting device according to another embodiment.

Hereinafter, embodiments will be exemplified with reference to the drawings. In the drawings, the same components are designated by the same reference numerals, and detailed description thereof will be appropriately omitted.
Examples of the vehicle lighting device 1 according to the present embodiment include those used for room lamps, meter lamps, reading lights, and the like provided in automobiles, railway cars, and the like. However, the application of the vehicle lighting device 1 is not limited to these.

(Vehicle lighting device)
FIG. 1 is a schematic perspective view for illustrating a vehicle lighting device 1 according to this embodiment.
FIG. 2 is a schematic side view of the vehicle lighting device 1.
As shown in FIGS. 1 and 2, the vehicle lighting device 1 can be provided with a light emitting unit 10, a cover 20, and a base 30 (corresponding to an example of a first base and a second base).
The light emitting unit 10 can be provided with a substrate 11, a light emitting element 12, a resistor 13, and a diode 14.

The substrate 11 can be provided between the one base 30 and the other base 30. The substrate 11 may have a plate shape. The planar shape of the substrate 11 can be a quadrangle. The planar shape of the substrate 11 illustrated in FIGS. 1 and 2 is a rectangle. The width dimension W1 of the substrate 11 can be made shorter than the width dimension W2 of the base 30. The width dimension is a dimension in a direction orthogonal to the direction in which the pair of bases 30 face each other. In order to facilitate replacement with a conventional vehicle lighting device including a filament, the width dimension W1 of the substrate 11 is preferably 20 mm or less, for example, about 6.4 mm.

However, the planar shape and the width dimension W1 of the substrate 11 are not limited to those illustrated. For example, the width dimension of the portion of the substrate 11 where the light emitting element 12 is provided can be made longer than the width dimension of both end portions of the substrate 11. In this case, the width dimension of the portion of the substrate 11 where the light emitting element 12 is provided can be made longer than the width dimension W2 of the base 30. In such a case, the cover 20 described later may not be provided, or the shape and size of the cover 20 may be matched with the shape and size of the substrate 11. By increasing the width dimension of the portion of the substrate 11 where the light emitting elements 12 are provided, it becomes easy to change the number and arrangement of the light emitting elements 12. Further, if the board 11 is provided with a portion having a long width, a finger can be hooked when the vehicle lighting device 1 is attached to or detached from the holder 103 of the vehicle lamp 100. Therefore, it becomes easy to attach and detach the vehicle lighting device 1 to and from the holder 103.

The mechanical connection between the substrate 11 and the base 30 is not particularly limited. For example, as illustrated in FIG. 1, a groove or a groove is formed on the end surface of the terminal portion 30a (corresponding to an example of the first terminal portion and the second terminal portion) opposite to the side where the convex portion 30b is provided. It is possible to provide a hole and to bond or press fit the end of the substrate 11 into the groove or the inside of the hole. Further, for example, an L-shaped holding portion is provided on the end surface of the terminal portion 30a opposite to the side where the convex portion 30b is provided, and the L-shaped holding portion is provided inside the hole provided in the substrate 11. The tip can be glued or pressed.

The substrate 11 can be formed of an insulating material. The substrate 11 can be formed from an inorganic material such as ceramics (for example, aluminum oxide or aluminum nitride) or an organic material such as paper phenol or glass epoxy. The substrate 11 may be a metal plate whose surface is coated with an insulating material. When the surface of the metal plate is covered with an insulating material, the insulating material may be made of an organic material or an inorganic material.

When the light emitting element 12 generates a large amount of heat, it is preferable to form the substrate 11 using a material having high thermal conductivity from the viewpoint of heat dissipation. Examples of the material having a high thermal conductivity include ceramics such as aluminum oxide and aluminum nitride, a high thermal conductive resin, and a metal plate whose surface is coated with an insulating material. The high thermal conductive resin may be, for example, a resin such as PET (Polyethylene terephthalate) or nylon mixed with a filler made of aluminum oxide or carbon.

The thickness of the substrate 11 can be 0.8 mm or more and 2.2 mm or less, for example, about 1.6 mm. However, the thickness of the substrate 11 is not limited to the illustrated one. The substrate 11 may have a single-layer structure or a multi-layer structure.

A wiring pattern 11a can be provided on one surface of the substrate 11. The wiring pattern 11a can be formed of a conductive material. The wiring pattern 11a can be formed of a low resistance metal such as silver, copper, or aluminum.

A mounting pad 11a1 and a connection pad 11a2 can be provided on the wiring pattern 11a. The mounting pad 11a1 can be provided in the central region of the substrate 11. The connection pad 11a2 can be provided in the vicinity of the end of the substrate 11 on the base 30 side. The light emitting element 12 can be electrically connected to the mounting pad 11a1. Further, when the resistor 13, the diode 14 and the like are provided, a mounting pad for electrically connecting these to the wiring pattern 11a can be provided. The base 30 can be electrically connected to the connection pad 11a2. In this case, the connection pad 11a2 and the base 30 can be electrically connected by using solder or a conductive adhesive, or the connection pad 11a2 and the base 30 can be electrically connected through wiring or the like. ..

The wiring pattern 11a can also be provided on the other surface of the substrate 11 (the surface opposite to the light emitting element 12 side). The wiring pattern 11a provided on one surface of the substrate 11 and the wiring pattern 11a provided on the other surface of the substrate 11 may be electrically connected by a conductive via or the like penetrating in the thickness direction of the substrate 11. it can.

If the wiring pattern 11a is also provided on the other surface of the substrate 11, elements such as the resistor 13 and the diode 14 can be mounted on the other surface of the substrate 11. Therefore, the types and the number of elements to be mounted can be increased, so that it becomes easy to protect the vehicle lighting device 1 and to make it multifunctional.

At least one light emitting element 12 can be provided on the substrate 11. The light emitting element 12 can be electrically connected to the wiring pattern 11a. The light emitting element 12 can be mounted on the mounting pad 11a1. The light emitting element 12 can be, for example, a light emitting diode, an organic light emitting diode, a laser diode, or the like.

The type of the light emitting element 12 is not particularly limited.
The light emitting element 12 may be, for example, a surface mount type light emitting element such as a PLCC (Plastic Leaded Chip Carrier) type. The light emitting element 12 illustrated in FIGS. 1 and 2 is a surface mount type light emitting element.
The light emitting element 12 may be, for example, a light emitting element having a cannonball-shaped lead wire.

Further, the light emitting element 12 may be mounted by COB (Chip On Board). When the light emitting element 12 is mounted by COB, the light emitting element 12 in the form of a chip, the wiring for electrically connecting the light emitting element 12 and the wiring pattern 11a, and the frame-shaped member surrounding the light emitting element 12 and the wiring. A sealing portion, which is provided inside the frame-shaped member and covers the light emitting element 12 and the wiring, can be provided on one surface of the substrate 11. In addition, the sealing portion may include a phosphor. The phosphor can be, for example, a YAG-based phosphor (yttrium-aluminum-garnet-based phosphor). The types of phosphors are not limited to those illustrated. The type of phosphor can be appropriately changed so as to obtain a desired emission color depending on the application of the vehicle lighting device 1.

The light emitting surface of the light emitting element 12 may be substantially parallel to the surface of the substrate 11. The light emitting element 12 can mainly emit light in a direction perpendicular to the surface of the substrate 11. If the light emitting element 12 is provided on one surface of the substrate 11, the light distribution characteristics tend to be biased. However, when the vehicle lighting device 1 is used for a vehicle interior light (for example, a room lamp, a meter lamp, a reading lamp, etc.), light may be emitted to one side of the vehicle lighting device 1. Therefore, when the vehicle lighting device 1 is used for a vehicle interior light, it is preferable to have such a light distribution characteristic.

The number, size, arrangement, etc. of the light emitting elements 12 are not limited to those illustrated, but can be appropriately changed according to the size and use of the vehicle lighting device 1. When a plurality of light emitting elements 12 are provided, the plurality of light emitting elements 12 can be connected in series.

The resistor 13 can be provided on at least one of the one surface and the other surface of the substrate 11. In the case of the vehicle lighting device 1 illustrated in FIG. 2, the resistor 13 is provided on the other surface of the substrate 11. If the light emitting element 12 is provided on one surface of the substrate 11 and the resistor 13 is provided on the other surface of the substrate 11, light emitted from the light emitting element 12 may be absorbed by the resistor 13 or blocked by the resistor 13. Can be suppressed.

The resistor 13 can be electrically connected to the wiring pattern 11a. The resistor 13 can be mounted on a mounting pad provided on the wiring pattern 11a. The resistor 13 can be connected in series with the light emitting element 12 via the wiring pattern 11a.
The resistor 13 can be a current limiting resistor.
Further, the resistor 13 may be one that adjusts the brightness of the light emitting element 12. Since the forward voltage characteristics of the light emitting element 12 have variations, the brightness (luminous flux, brightness, luminous intensity, illuminance) of the light emitting element 12 is fixed when the applied voltage between the anode terminal and the ground terminal is constant. There may be variations. Therefore, the value of the current flowing through the light emitting element 12 is set within the predetermined range by the resistor 13 so that the brightness of the light emitting element 12 falls within the predetermined range. In this case, by changing the resistance value of the resistor 13, the value of the current flowing through the light emitting element 12 can be kept within a predetermined range.

The resistor 13 can be, for example, a surface-mounted resistor, a resistor having a lead wire (a metal oxide film resistor), a film-like resistor formed by a screen printing method, or the like. The resistor 13 illustrated in FIG. 2 is a surface mount resistor. The number, size, arrangement, etc. of the resistors 13 are not limited to those illustrated, but can be appropriately changed according to the number, specifications, etc. of the light emitting elements 12.

It should be noted that the resistance of the film resistor is easy to adjust. Therefore, when adjusting the resistance value, it is preferable to use a film-shaped resistor. In this case, the resistance value can be adjusted as follows. First, a film-shaped resistor is formed on the surface of the substrate 11 by using a screen printing method or the like. Next, the film resistor is irradiated with laser light to remove part of the film resistor. Then, the resistance value of the film resistor is changed according to the size of the removed portion and the like. In this case, the resistance value can be increased by removing a part of the film-shaped resistor.

The diode 14 can be provided on at least one of the one surface and the other surface of the substrate 11. In the case of the vehicle lighting device 1 illustrated in FIG. 2, the diode 14 is provided on the other surface of the substrate 11. If the light emitting element 12 is provided on one surface of the substrate 11 and the diode 14 is provided on the other surface of the substrate 11, light emitted from the light emitting element 12 is absorbed by the diode 14 or blocked by the diode 14. Can be suppressed. The diode 14 can be electrically connected to the wiring pattern 11a. The diode 14 can be mounted on the mounting pad. The diode 14 can be connected in series with the light emitting element 12 via the wiring pattern 11a.

The diode 14 can be provided to prevent a reverse voltage from being applied to the light emitting element 12 and to prevent pulse noise from the reverse direction from being applied to the light emitting element 12.

In addition, electrical components such as transistors, capacitors, and integrated circuits can be provided on the substrate 11 as needed. Further, it is also possible to provide a covering portion that covers a part of the wiring pattern 11a, a film-shaped resistor, or the like. The coating portion can be, for example, a film containing a white solder resist, a film containing a glass material, or the like.

It should be noted that the resistor 13, the diode 14, and the electric component are not necessarily provided on the substrate 11. For example, the resistor 13, the diode 14, and the electric component may be provided on a circuit board or the like provided in the vehicle lighting device 100. However, if the resistor 13, the diode 14, and the electric component are provided on the substrate 11, the vehicle lighting device 1 can be protected and multifunctionalized without modifying the existing vehicle lamp 100.

The cover 20 can be provided between the one base 30 and the other base 30. The cover 20 may have a tubular shape. The cover 20 can be, for example, a cylinder whose both ends are open. The cover 20 may cover the substrate 11, the resistor 13, the diode 14, the electric component, and the like. The cover 20 can be formed of a translucent material. The cover 20 can be formed of, for example, glass or a translucent resin such as polycarbonate. The cover 20 can be adhered to the base 30, for example. The cover 20 is not always necessary and can be omitted. However, if the cover 20 is provided, it is possible to prevent an operator from touching the substrate 11, the wiring pattern 11a, the resistor 13, the diode 14, and the like, and preventing moisture, gas, or the like from contacting them. it can.

A pair of bases 30 can be provided. The light emitting unit 10 (the substrate 11) can be provided between the base 30 and the base 30.
The base 30 can be provided with a terminal portion 30a and a convex portion 30b.
The light emitting portion 10 (wiring pattern 11a) is electrically connected to the terminal portion 30a. A space may be provided inside the terminal portion 30a, or a space may not be provided. If a space is provided inside the terminal portion 30a, it is possible to reduce the weight of the base 30 and thus the weight of the vehicle lighting device 1.

The external shape of the terminal portion 30a is not particularly limited. The external shape of the terminal portion 30a can be, for example, a columnar shape. The external shape of the terminal portion 30a illustrated in FIGS. 1 and 2 is a column. The external shape of the terminal portion 30a may be, for example, a part of a cylinder or a prism such as a square prism.

The convex portion 30b can be provided on the end surface 30a1 (corresponding to an example of the first end surface and the second end surface) of the terminal portion 30a on the side opposite to the light emitting unit 10 side. The convex portion 30b is provided in a partial region of the end surface 30a1. The periphery of the convex portion 30b of the end surface 30a1 can be a flat surface. The convex portion 30b projects from the end surface 30a1 in the direction in which the pair of bases 30 face each other. As described later, when the vehicle lighting device 1 is attached to the holder 103 of the vehicle lamp 100, the convex portion 30b is provided inside the positioning portion 103a provided on the holder 103. At this time, the flat region of the end surface 30a1 and the holder 103 come into contact with each other. Further, the vehicle lighting device 1 is sandwiched between the pair of holders 103 by the elastic force of the holder 103.

Therefore, if the convex portion 30b is provided, it is possible to prevent the vehicle lighting device 1 from moving in a direction orthogonal to the direction in which the pair of bases 30 face each other, and the vehicle lighting device 1 from dropping from the holder 103. be able to. Further, if the convex portion 30b is provided on each of the pair of terminal portions 30a, the posture of the vehicle lighting device 1 can be stabilized.

The shape of the convex portion 30b is not particularly limited. For example, in the direction orthogonal to the direction in which the pair of bases 30 face each other, the size of the tip of the protrusion 30b can be smaller than the size of the portion of the protrusion 30b provided on the terminal portion 30a. For example, as illustrated in FIGS. 1 and 2, the shape of the convex portion 30b can be a cone. However, the shape of the convex portion 30b is a truncated cone, a truncated pyramid, a truncated pyramid, a part of a sphere such as a hemisphere, a stepped protrusion, a protrusion whose part of its side surface is a slope, and a taper at its tip. It can be a protrusion or the like.

The shape of the convex portion 30b may be a prism such as a cylinder or a square prism. However, if the protruding portion 30b has a thin shape on the tip side, it becomes easy to insert the protruding portion 30b into the positioning portion 103a.

3A to 3E are schematic views for illustrating the cross-sectional shape of the convex portion 30b in the direction orthogonal to the direction in which the pair of caps 30 face each other.
As shown in FIG. 3A, the cross-sectional shape of the convex portion 30b1 can be square.
As shown in FIG. 3B, the cross-sectional shape of the convex portion 30b2 can be rectangular.
As shown in FIG. 3C, the cross-sectional shape of the convex portion 30b3 can be triangular.
That is, the cross-sectional shape of the convex portion 30b can be polygonal.
As shown in FIG. 3D, the cross-sectional shape of the convex portion 30b4 can be a part of a circle. As shown in FIG. 3E, the cross-sectional shape of the convex portion 30b5 can be an arbitrary shape that is a combination of straight lines. Note that the cross-sectional shape of the convex portion 30b5 may be a shape including only curves such as a circle and an ellipse, an arbitrary shape combining curves, an arbitrary shape combining straight lines and curves, and the like.

If the cross-sectional shape of the convex portion 30b is other than a circle, the vehicular lighting device 1 can be restrained from moving in the rotation direction around the central axis 1a. As described above, the vehicle lighting device 1 tends to have an uneven light distribution characteristic. Therefore, when the vehicular lighting device 1 moves in the rotation direction around the central axis 1a due to vibrations caused by traveling of the vehicle, the light may not be emitted to the intended position. If the cross-sectional shape of the convex portion 30b is other than a circle, the vehicular lighting device 1 can be restrained from moving in the rotation direction around the central axis 1a, so that vibration may be applied to the vehicular lighting device 1. Can also irradiate the intended position with light.

Further, as illustrated in FIGS. 1 and 2, the size and shape of the convex portion 30b provided on the one terminal portion 30a is the same as the size and shape of the convex portion 30b provided on the other terminal portion 30a. Can be the same or different in at least one of size and shape.

For example, one base 30 may be connected to the positive electrode and the other base 30 may be connected to the negative electrode depending on the specifications of the vehicle lighting device 1. Therefore, in the pair of bases 30, if at least one of the size and the shape of the convex portions 30b is different, the mounting direction of the vehicle lighting device 1 can be limited, so that incorrect assembly can be prevented. ..
In the case where the vehicle lighting device 1 is provided with a bridge circuit or the like and the base 30 can be connected to either the positive electrode or the negative electrode, the size and shape of the convex portions 30b in the pair of bases 30 are changed. The same is preferable. With this configuration, workability in mounting the vehicle lighting device 1 can be improved.

The terminal portion 30a and the convex portion 30b can be integrally formed by, for example, a die casting method, a press molding method, a sheet metal method, or the like. The terminal portion 30a and the convex portion 30b may be joined by welding, brazing, or the like.
The base 30 (terminal portion 30a, convex portion 30b) can be formed of a conductive material. The base 30 can be formed of a low resistance metal such as a copper alloy or an aluminum alloy. A plating layer made of nickel, chromium, or the like can be provided on the surface of the base 30.

With the vehicular lighting device 1 according to the present embodiment, the end surface 30a1 of the terminal portion 30a and the holder 103 can be brought into surface contact with each other, so that variation in electrical resistance can be suppressed. Further, since the convex portion 30b can be provided inside the hole or the like provided in the holder 103, it is possible to prevent the vehicle lighting device 1 from being displaced or dropped due to vibrations caused by traveling or the like. .. Therefore, with the vehicle lighting device 1 according to the present embodiment, the reliability of electrical connection can be improved.

(Vehicle lamp)
FIG. 4 is a schematic side view for illustrating the vehicle lamp 100 according to the present embodiment. Note that, in the following, as an example, the case where one vehicle lighting device 1 described above is provided is illustrated, but at least one vehicle lighting device 1 may be provided.
As shown in FIG. 4, the vehicle lighting device 100 can be provided with the vehicle lighting device 1, a housing 101, a cover 102, and a holder 103.

The housing 101 may have a box shape with one end open. The housing 101 can be formed of, for example, a resin that does not transmit light.
The cover 102 can be provided so as to close the opening of the housing 101. The cover 102 can be formed of a translucent resin or the like. The cover 102 can have a function of a lens or the like, or can suppress glare. Further, the cover 102 can be provided in the housing 101 so as to be openable and closable or detachable.

The holder 103 can be provided inside the housing 101. For example, the holder 103 can be fixed to the bottom surface of the housing 101. A pair of holders 103 can be provided for one vehicle lighting device 1. The holder 103 can be formed of a metal such as phosphor bronze, for example. The holder 103 can be formed by, for example, a press molding method, a sheet metal method, or the like.

The holder 103 can have a positioning portion 103a for providing the convex portion 30b provided on the base 30. The positioning portion 103a can be, for example, a hole or the like. In this case, if the positioning portion 103a is a hole that is opened on the side surface of the holder 103, etc., the attachment/detachment of the vehicle lighting device 1 can be facilitated. However, it is preferable that the positioning portion 103a is a hole that penetrates in the thickness direction of the holder 103 and does not open to a side surface or the like, considering that vibration is applied due to traveling or the like.

By mounting the vehicle lighting device 1 on the holder 103, the vehicle lighting device 1 and the holder 103 are mechanically and electrically connected. A power source or the like provided outside the vehicle lighting device 100 can be electrically connected to the pair of holders 103. Note that a circuit board may be provided on at least one of the inside and the outside of the housing 101 so that the pair of holders 103 and a power source or the like are electrically connected via the circuit board.

When the vehicle lighting device 1 is attached to the holder 103, the holder 103 comes into contact with the end surface 30a1 of the terminal portion 30a due to the elastic force. Therefore, since the holder 103 and the base 30 can be brought into surface contact with each other, it is possible to suppress variations in electric resistance at the contact portion. Further, since the vehicular lighting device 1 is held by the holder 103 by the elastic force, it is possible to prevent the position of the vehicular lighting device 1 from being displaced due to the vibration accompanying traveling. Therefore, the reliability of electrical connection can be improved.

Here, as described above, one base 30 may be connected to the positive electrode and the other base 30 may be connected to the negative electrode depending on the specifications of the vehicle lighting device 1.
In such a case, it is preferable that at least one of the size and the shape of the convex portion 30b is different between the pair of caps 30. With this configuration, the mounting direction of the vehicle lighting device 1 can be limited, so that incorrect assembly can be prevented.

FIG. 5 is a schematic side view for illustrating a vehicle lamp 100a according to another embodiment. For example, as shown in FIG. 5, the size of the protrusion 30b6 of the base 30c can be made smaller than the size of the protrusion 30b of the base 30. The size of the positioning portion 103a1 of the holder 103b can be made smaller than the size of the positioning portion 103a of the holder 103. When the vehicle lighting device 1b is mounted on the holders 103 and 103b, the mounting direction of the dual lighting device 1b is limited, so that incorrect mounting can be prevented.

Further, as described above, if the cross-sectional shape of the convex portion 30b is other than a circle, the vehicular lighting device 1 can be restrained from moving around the central axis 1a in the rotation direction. Therefore, even if vibration is applied to the vehicle lighting device 1, the light can be emitted to the intended position. For example, the shape of the convex portion 30b can be a pyramid or a prism. In this case, the size and shape of the positioning portion 103a may be adapted to the cross-sectional size and cross-sectional shape of the convex portion 30b.

Although some embodiments of the present invention have been illustrated above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and its equivalent scope. Further, the above-described respective embodiments can be implemented in combination with each other.

1 Vehicle Illumination Device, 1b Vehicle Illumination Device, 1a Central Axis, 10 Light Emitting Unit, 11 Substrate, 12 Light Emitting Element, 30 Base, 30c Base, 30a Terminal, 30b Convex, 30b1 to 30b6 Convex, 100 Vehicle Lamp, 100a Vehicle lamp, 101 Housing, 103 Holder, 103a Positioning part, 103a1 Positioning part, 103b Holder

Claims (8)

A first base;
A second base facing the first base;
A light-emitting portion provided between the first base and the second base and having at least one light-emitting element;
Equipped with,
The first base is
A first terminal portion to which the light emitting portion is electrically connected;
A first convex portion provided in a region of a part of a first end surface of the first terminal portion opposite to the light emitting portion side;
Have
The second base is
A second terminal portion to which the light emitting portion is electrically connected;
A second convex portion provided in a part of a region of a second end surface of the second terminal portion opposite to the light emitting portion side;
Vehicle lighting device having a. The vehicle lighting device according to claim 1, wherein a periphery of the first convex portion of the first end surface is a flat surface. The vehicle lighting device according to claim 1, wherein the second end face has a flat surface around the second protrusion. The dimension of the tip of the first convex portion is provided in the first terminal portion of the first convex portion in a direction orthogonal to the direction in which the first and second ferrules face each other. The vehicle lighting device according to any one of claims 1 to 3, which is smaller than a size of a portion. In the direction orthogonal to the direction in which the first die and the second die face each other, the dimension of the tip of the second protrusion is provided on the second terminal portion of the second protrusion. The vehicle lighting device according to any one of claims 1 to 4, which is smaller than the size of the portion. The vehicle lighting device according to any one of claims 1 to 5, wherein a shape of the second convex portion is different from a shape of the first convex portion. The size of the said 2nd convex part is a vehicle illuminating device as described in any one of Claims 1-6 different from the size of the said 1st convex part. A vehicle lighting device according to any one of claims 1 to 7;
A first holder capable of contacting a first end surface of a first terminal portion provided in the vehicle lighting device;
A second holder capable of contacting the second end surface of the second terminal portion provided in the vehicle lighting device;
Equipped with,
The first holder has a first positioning portion into which a first convex portion provided in a partial region of the first end surface can be inserted,
The second holder is a vehicle lamp including a second positioning portion into which a second convex portion provided in a partial area of the second end face can be inserted.

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