JP5730628B2 - Door mirror lamp - Google Patents

Description

  The present invention relates to a side turn lamp provided on a door mirror of a vehicle. In particular, the present invention relates to a door mirror side turn lamp using a light emitting diode (hereinafter referred to as “LED”) as a light source.

  In recent years, a vehicle is provided with a door mirror, and a door mirror with a side turn lamp attached thereto has been put into practical use. Since this type of lamp is incorporated in a door mirror, it is desired to reduce the size, and an LED is used as a light source (for example, Patent Document 1).

FIG. 9 shows a conventional door mirror turn lamp 100.
The door mirror turn lamp 100 includes a housing 102 installed on the door mirror body, an outer lens 103 covering the front of the housing 102, an LED light source 106 provided on a flexible substrate 105 provided between the housing 102 and the outer lens 103, an inner lens. 104.

JP 2010-221773 A

  However, the conventional door mirror turn lamp 100 described above is positioned below the door mirror 2 so as to turn from the vehicle front direction to the vehicle side surface direction as shown in FIG. In particular, a horizontally long shape is required. Therefore, it is required to form the door mirror turn lamp 100 thin and horizontally long. Therefore, although the flexible substrate 105 is used in order to form it horizontally and thin, it is difficult to improve the heat dissipation of the LED light source 106 mounted on the flexible substrate 105. In addition, since the flexible substrate is expensive, there is a problem that the cost is increased. Furthermore, there is a problem in that the component mounting operation becomes troublesome and complicated, resulting in an increase in cost.

  Therefore, the present invention has been made in view of the above problems, and its object is to simplify the structure and reduce the number of parts.

In order to achieve the above object, a door mirror according to the present invention includes:
A door mirror lamp having a translucent resin cover, a lamp chamber in which an LED light source is disposed, and a housing joined to the resin cover,
The housing is open to the front toward the door mirror side side in the door mirror mounted state, a stepped bent portion you located in the lamp chamber, and a mesh-like rib provided to those the stepped bent portion, feed metal plate A mounting boss, the LED mounting board mounting boss and a terminal hole;
In the lamp chamber, the LED light source, the LED mounting substrate, and a pair of power supply metal plates are housed,
The LED mounting substrate is a printed circuit board, and has an LED light source mounting portion provided on one surface thereof, and a metal plate contact portion provided on the back surface of the first surface,
Each of the power supply metal plates includes a flat portion in surface contact with the metal plate contact portion, an attachment hole attached to the step portion of the housing, and a socket side attachment hole provided with a pin terminal portion. Part, step mounting hole and socket side mounting hole are aligned in a row,
A mesh-like rib is integrally formed on the LED mounting board mounting portion,
The LED mounting substrate is attached to the mesh rib via the power feeding metal plate.

Furthermore, the door mirror according to the present invention is
A door mirror provided with the door mirror lamp described above,
The LED light source is located on the side of the door mirror,
The back side of the opening corresponding to the region corresponding to the metal plate mounting boss for power feeding, the LED mounting substrate mounting boss and the mesh-like rib portion of the housing is in contact with the air layer,
The air layer is in contact with a space communicating with a movable region of the mirror of the door mirror directly or through a door mirror main body housing.

  According to the first aspect of the present invention, the structure of the door mirror lamp is simplified and the number of parts is reduced by attaching the power supply metal plate having the connector terminal portion obtained by bending the LED mounting board in direct contact. Is possible.

According to the invention of claim 2, the structure of the door mirror lamp can be simplified, the number of parts can be reduced, and the door mirror lamp can be provided on the side of the door mirror, thereby providing a light irradiation surface on the narrow side for visibility. It becomes possible to improve.
By setting it as invention of Claim 3, the intensity | strength of a door mirror lamp can be improved and the thickness reduction and cost reduction of a lamp | ramp can be aimed at.

FIG. 1 is a schematic perspective view showing a mounting state of a door mirror lamp according to the present invention. FIG. 2 is an enlarged perspective view of the door mirror lamp of FIG. FIG. 3 is a schematic perspective view showing the upper body with the cover of the door mirror lamp of FIG. 2 removed. FIG. 4 is an exploded perspective view showing the configuration of the door mirror lamp according to the present invention. FIG. 5 is a perspective view seen from the light emitting surface side of the door mirror lamp according to the present invention. 6 is a perspective view showing a state in which the lens cover of the door mirror lamp of FIG. 5 is removed. FIG. 7 is a schematic cross-sectional view in the vertical direction along the line AA in FIG. FIG. 8 is a schematic cross-sectional view in the horizontal direction along the line BB in FIG. FIG. 9 is a perspective view seen from the back side opposite to the light emitting surface of the door mirror lamp of FIG. The disassembled perspective view which shows the conventional door mirror side turn lamp. It is a schematic perspective view which shows the attachment state of the door mirror side turn lamp of FIG.

  Hereinafter, the door mirror lamp which is one Embodiment of this invention is demonstrated, referring FIGS.

FIGS. 1 to 3 are diagrams for explaining the mounting state of the door mirror lamp according to the present invention. FIG. 1 is a schematic perspective view, and FIG. 2 is an enlarged perspective view of the door mirror lamp of FIG. FIG. 3 is a schematic perspective view showing a state in which the cover of the door mirror lamp of FIG. 2 is removed.
In the following description and drawings, the vehicle traveling direction is represented as x direction, the vehicle upper direction is represented as z direction, the vehicle traveling direction right side is represented as y direction, and the left side is represented as -y direction. Shows a door mirror.

  The door mirror lamp 1 is a lamp installed on a door mirror 2 attached to a vehicle door 3 as shown in FIG. 1, for example, and is fixed to the door mirror 2. The door mirror 2 includes a mirror movable in the rear of the vehicle, that is, in the −x direction, in the door mirror housing 4. A door mirror cover 5 is attached to the vehicle front side (x direction) of the door mirror 2, and a socket (not shown) for supplying power to the door mirror lamp 1 is provided inside the door mirror 2. The door mirror lamp 1 is fixed to the door mirror 2 via a gasket 45 shown in FIG.

  The configuration so far is the same as that of the conventional door mirror lamp, but in the present invention, the door mirror lamp 1 is arranged along the door mirror side surface 2a on the outermost side of the door mirror 2. Moreover, the light emission surface 1a shall be located in the side surface notch part 5a provided in the door mirror housing 5, and it is made into the vertically long shape. Further, the door mirror lamp 1 includes an LED mounting board 30 on which an LED light source 31 is mounted. The LED mounting board 30 is electrically and mechanically fixed to a power supply metal plate 40 having a connector terminal portion 43.

  Hereinafter, the door mirror lamp 1 will be described in detail with reference to FIGS. 4 is an exploded perspective view showing the structure of the door mirror lamp, FIG. 5 is a perspective view seen from the light emitting surface side of the door mirror lamp, FIG. 6 is a perspective view showing a state in which the lens cover of the door mirror lamp of FIG. Is a schematic cross-sectional view in the vertical direction along the line AA in FIG. 2, FIG. 8 is a schematic cross-sectional view in the horizontal direction along the line BB in FIG. 7, and the range indicated by the symbol M in FIG. The movable range of the mirror. FIG. 9 is a perspective view seen from the back side of the door mirror lamp.

  The door mirror lamp 1 is, for example, a door mirror side turn lamp, and has a function of displaying a turning direction of the vehicle by blinking light. Further, it is formed so as to conform to standards such as European standards, and the light distribution range thereof satisfies, for example, a luminous intensity of 0.6 cd to 200 cd in the vertical direction ± 15 ° and the horizontal direction 5 ° to 60 °. . Specifically, the light distribution is controlled by the LED light source 31 and the prism lens 21.

  The door mirror lamp 1 includes a housing 10, a lens cover 20 that covers the front opening 11 thereof and forms a lamp chamber 50, and an LED light source 31 provided in the lamp chamber 50, and the LED light source 31 is mounted on the LED mounting substrate 30. The power is supplied from the outside of the door mirror lamp 1 through the power supply metal plate 40.

  The housing 10 is made of a non-translucent resin, and includes a peripheral seal portion 17 that comes into contact with the lens cover 20, a stepped bent portion 12 surrounded by the peripheral seal portion 17, a connector portion 18 provided on the back side of the housing, and It is integrally molded into a thin shape provided with the mounting hole 19. The surface of the staircase-shaped bent portion 12 on the lamp chamber 50 side is stepped by three flat surfaces 13 including an upper flat surface 13a, an intermediate flat surface 13b, and a lower flat surface 13c, and an inclined surface therebetween. The strength in the vertical direction (z direction) is increased.

  Further, mesh-like ribs 16 are provided on the upper flat surface 13a. A power feeding metal plate 40 is placed in contact with the mesh rib. An intermediate flat surface boss 14b is formed on the intermediate flat surface 13b. A lower flat surface boss 14c and a terminal hole 14d are formed in the lower flat surface 13c. A connector terminal portion 43 to be described later is inserted into the terminal hole 14d.

  The power supply metal plate 40 is made of a thick plate substrate having a thickness of about 1 mm and made of an iron-based metal material and having a surface subjected to rust prevention treatment such as galvanization. By using an iron-based metal material, the strength can be improved as compared with a metal substrate mainly composed of copper, and the cost can be further reduced. The thickness is preferably thicker than 0.8 mm from the viewpoint of strength, and preferably within a range not exceeding 2 mm from the viewpoint of processing accuracy and weight. The power feeding metal plate 40 is formed by bending into a bent shape corresponding to the stepped bent portion 12. The metal plate flat surface 41 includes three flat surfaces of an upper metal plate flat surface 41a, an intermediate metal plate flat surface 41b, and a lower metal plate flat surface 41c corresponding to the three flat surfaces of the housing flat surface 13, respectively. It has a metal plate inclined surface in between. The intermediate metal plate flat surface 41b and the lower metal plate flat surface 41c have boss holes 42 that fit into the intermediate flat surface boss 14b and the lower flat surface boss 14c. On the upper metal plate flat surface 41a, two caulking portions 44 are formed on the surface side that becomes the lens cover 20 side.

  In addition, the power feeding metal plate 40 includes two types, a positive electrode and a negative electrode, and includes a pair of power feeding metal plates 40 and 40. A portion of the lower metal plate flat surface 41 c is bent toward the back side of the housing 10 to form a connector terminal portion 43. The connector terminal portion 43 is inserted into the connector portion 18 and electrically connected to a socket (not shown).

  The LED mounting board 30 is formed of a material such as a printed board, and a wiring pattern (not shown) is formed on the surface thereof. An LED light source 31 is mounted on the surface on the lens cover 20 side, and in this embodiment, two surface mount type light emitting diodes are electrically and mechanically fixed with a known material such as solder. . Further, four mounting holes 32 are formed between the LED light source 31 mounting portion of the LED mounting substrate 30 and the edge of the LED mounting substrate, and the two power supply metal plates 40 described above are formed in the two mounting holes. The crimping portion 44 is inserted, and the LED mounting substrate 30 and the power feeding metal plate 40 are integrated by bending and crimping after insertion. If necessary, other electronic components such as resistors and protective diodes are mounted on the LED mounting substrate.

  Caulking of the caulking unit 44 is performed in the following order. First, the power feeding metal plates 40 are installed in the housing 10. At this time, positioning is performed by attaching the rib holes 42, 42, 42, 42 provided in the power supply metal plates 40, 40 so as to fit into the power supply metal plate mounting boss 14 provided in the housing. Next, the LED mounting substrate 30 on which the LED light source 31 is mounted is attached. At this time, the caulking portion 44 is linearly bent toward the lens cover 20 so that the caulking portion 44 is inserted into the mounting hole 32. Further, the mounting board boss hole 33 is fitted into the LED mounting board mounting boss 15 so that predetermined positioning is performed. Next, the caulking portion 44 is caulked and bent to integrate the LED mounting substrate 30 and the pair of power supply metal plates 40, 40.

  Further, when the crimping portion 44 is crimped, as shown in FIGS. 4 and 6, the leading end side of the crimping portion 44 is bent so as to be substantially parallel to the surface of the LED mounting substrate 30, and the LED mounting is performed as shown in FIG. It is electrically connected to a wiring pattern (not shown) provided on the surface of the substrate 30 on the lens cover 20 side. 4 and 6, the crimping portion 44 is shown in a bent state. In FIG. 6, the LED mounting substrate 30 is shown as transparent so that the arrangement state of the power feeding metal plate 40 can be easily understood. Show. Further, in order to ensure electrical connection between the caulking portion 44 and a wiring pattern (not shown) provided on the surface of the LED mounting substrate 30 on the lens cover 20 side, both are connected by a conductive material such as solder and used together. It is preferable.

  Further, when the LED mounting board 30 and the power feeding metal plate 40 are integrated at the caulking portion, the upper metal plate flat surface 41a has the back surface (the LED light source 31 is mounted) of the LED mounting board 30 as shown in FIG. It is in surface contact with the back side contact portion 34 on the non-side). By surface contact, heat conduction between the LED mounting substrate 30 and the power feeding metal plate 40 is improved.

  Further, mesh-like ribs 16 are formed on the upper flat surface 13a of the housing on which the upper metal plate flat surface 41a is provided. The mesh-shaped rib 16 is composed of a plurality of ribs standing in a lattice shape, and the power feeding metal plate 40 is placed on the upper surface thereof. Compared to a uniform flat surface in which the mesh-like ribs 16 are not formed, the heat increase of the housing 10 can be suppressed. Further, a part of the mesh-shaped rib 16 is covered with the LED mounting substrate 30 via the power feeding metal plate 40, and a part is covered with the LED mounting substrate 30 without passing through the power feeding metal plate 40. Thereby, the space 17a surrounded by the mesh-like rib 16 is formed on the back surface side of the portion where the LED light source 31 of the LED mounting substrate 30 is mounted. A space 17a serving as an air chamber is provided between the housing 10 and the heat transmitted to the back surface side at a position corresponding to the upper flat surface 13a of the housing 10 can be reduced.

  The process of supplying the power supply metal plate 40 and the LED mounting board 30 to the housing 10 is performed by the lower flat surface boss 14c and the LED mounting board mounting boss 15 described above. Specifically, heat caulking is performed to fix the power supply metal plate 40 and the LED mounting substrate 30 by applying pressure while the bosses 14 c and 15 are heated to deform the boss. The thermal caulking is performed at a total of four locations of the lower flat surface boss 14c and the LED mounting board mounting boss 15, and the upper flat surface boss 14a and the intermediate flat surface boss 14b function as positioning bosses. is not.

  The lens cover 20 is formed of a transparent resin material, and is molded by a resin material such as acrylic or polycarbonate. Seal legs 22 are formed around the lens cover 2, and are fused and integrated with the peripheral seal portion 17 of the housing 10. The seal leg 22 faces the front opening 11 of the housing 10, and the lens cover 20 has a bowl shape. The strength of the door mirror lamp 1 can be improved by welding the seal legs 22 of the bowl-shaped lens cover 20 to the peripheral seal portion 17.

  In particular, the strength is improved by the stepped bent portion 12 and the power feeding metal plate 40, and the strength of the seal legs 22 is different from the direction of the strength improved by the stepped bent portion 12 and the power feeding metal plate 40. Strength is improved. Therefore, since the strength is improved by the curved surface, the bent surface and the thick metal, the thickness of the material of the lens cover 20 and the housing 10 can be reduced, and the door mirror lamp 1 can be reduced in weight. be able to.

  Further, a part of the lens cover 20 forms a convex portion that protrudes to the surface side, and the convex portion becomes the light emitting surface 1a. The light emitting surface 1a is designed to match the door mirror side surface 2a in design, and is formed to be a continuous curved surface in this embodiment. A prism lens 21 is formed on the inner surface of the light emitting surface 1a, that is, the surface in contact with the lamp chamber 50. The prism lens 21 forms a lens element that refracts light emitted from the LED light source 44 so as to obtain a predetermined light distribution pattern. In this embodiment, a large number of minute prisms are formed. In the drawing, since the prism lens 21 is very small, it is shown by a straight line in the sectional view.

  When manufacturing the door mirror lamp of the embodiment of the present invention configured as described above, the LED mounting substrate 30 such as a general-purpose printed circuit board, the two types of bent power supply metal plates 40, the housing 10 and the lens cover 21 are provided. All that is required is a small number of parts. Also, the assembly work can be performed by attaching the power feeding metal plate 40 to the housing 10 at a predetermined position, installing the LED mounting board thereon, fixing by caulking, heat caulking the boss, and sealing with the lens cover. good. Each part has a size that is easy to handle, has excellent handleability, and improves assembly. Therefore, the assembling work can be easily performed, and the cost can be reduced as a whole. Moreover, the connector part 18 is also formed integrally, and it is not necessary to prepare the terminal separately. Further, in the present embodiment, since it is installed on the side surface 2a of the door mirror, the LED light source 31 is mounted on the same plane of the LED mounting substrate 30 so as to face the same optical axis direction, and is combined with a prism lens provided thereon. A predetermined light distribution can be obtained. Therefore, the troublesomeness of arranging in different directions so as to have different optical axis directions as in the prior art is also eliminated.

  When the door mirror lamp 1 described above is attached to the door mirror 2, the door mirror lamp 1 integrated as shown in FIGS. 3 and 3 is provided in the notch 4a of the mirror housing 4 at the position of the side surface 2a of the door mirror. Fit from the cover 5 side. At this time, the gasket 45 is fixed around the light emitting surface 1a of the lens cover 20 with a double-sided tape or the like, and the watertightness with the mirror housing 4 can be maintained by fitting it. Thereafter, the assembly is completed by fixing the door mirror cover 5 as shown in FIG. 2 via a seal packing (not shown). The power supply terminal connected to the door mirror lamp 1 is provided with a socket (not shown) in the space between the mirror housing 4 and the door mirror cover 5 and attached to the connector portion 18 to complete the necessary electrical wiring. .

  The door mirror lamp 1 is positioned on the door mirror side surface 2a, and the LED mounting substrate 30 is arranged in a rectangular shape so that the long side is positioned in parallel with the vehicle vertical direction (z direction) of the door mirror side surface 2a. The LED light source 31 is also arranged in parallel with the vehicle vertical direction (z direction). Therefore, the light emitting surface 1a can be provided on the narrow door mirror side surface 2a. By providing the door mirror lamp 1 on this narrow door mirror side surface 2a, it is possible to irradiate light not only in the vehicle lateral direction but also in the vehicle traveling direction and in the direction opposite to the vehicle traveling direction. Therefore, it can be formed so as to conform to standards such as European standards. For example, the light distribution range satisfies a luminous intensity of 0.6 cd to 200 cd in the vertical direction ± 15 ° and in the horizontal direction 5 ° to 60 °. be able to. Further, the power feeding metal plate 40 is disposed in a direction parallel to the horizontal direction. Therefore, since the strength when the door mirror lamp 1 is assembled to the door mirror 2 is increased by the power feeding metal plate, it is possible to prevent deformation and distortion during the assembly. Further, since the power supply metal plate 40 and the movable range of the mirror housed in the door mirror 2 are substantially parallel, the heat from the LED light source 31 radiated through the power supply metal plate 40 is transmitted from the side of the door mirror side surface 2a and Heat can be radiated to the outside from both sides of the mirror.

  The above embodiment is merely an example in all respects. The present invention is not construed as being limited to these descriptions. For example, the present invention can be applied to a door mirror lamp in which a door mirror lamp is provided on a double mirror cover or three power supply metal plates are used. The present invention can be implemented in various other forms without departing from the spirit or main features thereof.

The present invention can be applied to a door mirror lamp with improved parts count and ease of assembly.

1 Door mirror lamp (door mirror side turn lamp)
DESCRIPTION OF SYMBOLS 2 Door mirror 3 Door 10 Housing 12 Step-shaped bending part 13 Flat surface 16 Mesh-like rib 18 Connector part 20 Lens cover 21 Prism lens 30 LED mounting board 31 LED light source 34 Back side surface contact part 40 Power supply metal plate 41 Metal plate flat surface 43 Connector terminal portion 44 Caulking portion 45 Gasket 50 Lamp chamber 51 Mirror movable region 100 Door mirror turn lamp 102 Housing 103 Outer lens 105 Flexible substrate 106 LED light source

Claims (3)

A door mirror lamp having a translucent resin cover, a lamp chamber in which an LED light source is disposed, and a housing joined to the resin cover,
The housing is open to the front toward the door mirror side side in the door mirror mounted state, a stepped bent portion you located in the lamp chamber, and a mesh-like rib provided to those the stepped bent portion, feed metal plate A mounting boss, the LED mounting board mounting boss and a terminal hole;
In the lamp chamber, the LED light source, the LED mounting substrate, and a pair of power supply metal plates are housed,
The LED mounting substrate is a printed circuit board, and has an LED light source mounting portion provided on one surface thereof, and a metal plate contact portion provided on the back surface of the first surface,
Each of the power supply metal plates includes a flat portion in surface contact with the metal plate contact portion, an attachment hole attached to the step portion of the housing, and a socket side attachment hole provided with a pin terminal portion. Part, step mounting hole and socket side mounting hole are aligned in a row,
A mesh-like rib is integrally formed on the LED mounting board mounting portion,
The door mirror lamp, wherein the LED mounting substrate is attached to the mesh rib through the power feeding metal plate. A door mirror provided with the door mirror lamp of claim 1,
The LED light source is located on the side of the door mirror,
The back side of the opening corresponding to the region corresponding to the metal plate mounting boss for power feeding, the LED mounting substrate mounting boss and the mesh-like rib portion of the housing is in contact with the air layer,
The door layer is in contact with a space communicating with a movable region of the mirror of the door mirror directly or via a door mirror main body housing.   The door mirror according to claim 2, wherein the power feeding metal plate is formed of a thick plate substrate made of an iron-based material and having a thickness greater than 0.8 mm.

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