JP4806594B2 - VEHICLE LIGHT AND VEHICLE DOOR MIRROR HAVING THE VEHICLE LIGHT - Google Patents

Description

  The present invention relates to a vehicular lamp and a vehicular door mirror device including the vehicular lamp.

  Vehicles need to show other traffic to turn left or right or change their course, and the light rays are not obstructing other traffic. Other standards are defined (which can be seen from all positions within a defined range) (depending on the type of vehicle).

  For example, in a direction indicator provided on both sides of a vehicle, lighting can be confirmed in the daytime from a distance of 30 m, and the irradiation light beam is assumed not to disturb other traffic. Yes. Further, the direction indicators provided on both side surfaces thereof include a horizontal line O1 passing through the center of the direction indicator and orthogonal to the traveling direction of the automobile (vehicle) as shown in FIG. And a plane 15 degrees below and a vertical plane O2 parallel to the direction of travel of the vehicle (vehicle), including the center of the direction indicator, as shown in FIG. It can be seen from all positions within a range surrounded by a plane of 5 degrees outside the direction indicator and a plane of 60 degrees outside the direction indicator from the rear side.

By the way, the door mirror devices provided on both side surfaces of the vehicle are moderately high from the road surface, and are easy to see from other traffic such as oncoming vehicles and pedestrians. 2. Description of the Related Art Conventionally, a door mirror device having a turn indicator function that lights when a vehicle turns right or left or changes its course is known with attention to the advantage of high visibility.
JP 2005-186669 A

  The technology of Patent Document 1 discloses a vehicle door mirror device in which a lamp unit (illumination device) is mounted inside a mirror housing. This lamp unit emits decorative light and uses a substrate such as a glass epoxy resin with a surface mounted LED on the surface or a metal plate that also has wiring, and its back surface is fixed along the cross-sectional shape of the lamp lens. It is a thing.

  However, Patent Document 1 does not describe any method for fixing a substrate provided with an LED (light emitting unit) in a state in which the substrate is aligned with the cross-sectional shape of the lamp lens.

  By the way, as described above, in the direction indicator, the range that must be irradiated is determined by law, and it is required that the light emitting unit is securely fixed so as to irradiate in that direction. For example, if it is a rigid board, it can be fixed by providing a nail etc. on the side to fix the board and hooking the board to the nail, and by making a hole in the board and screwing or heat caulking etc. There is a dilemma that can be fixed, but limited in space.

  In addition, if it is a flexible substrate, it has excellent flexibility and followability, so it has a high degree of freedom in space. Therefore, the fixing method is difficult, and fixing with a nail, screwing, heat caulking, etc. like a rigid substrate is performed. For example, a method of applying a double-sided tape to a predetermined position on the back or front surface of the substrate and fixing it with the double-sided tape is conceivable. However, the double-sided tape cannot be positioned uniformly and may be displaced. There is also a problem that it cannot be used for a direction indicator that has a predetermined irradiation range such as a turn indicator.

  In addition, the light emitting part (LED) is weak to heat and has a problem of heat generation. In order to realize high brightness and long life, it is indispensable to release heat, but since the flexible substrate is a thin layer, it is sufficient. There is a problem that it cannot have heat dissipation.

  The present invention has been made in view of the above circumstances, and even when a flexible substrate with a high degree of freedom is used, the light emitting portion is not displaced, and a predetermined range can be irradiated. It is an object of the present invention to provide a vehicular lamp that can suppress a temperature rise due to heat generation of the lamp and reduce luminance deterioration, and a vehicle door mirror device including the vehicular lamp.

Means for Solving the Problems and Effects of the Invention

In order to solve the above problems, a vehicular lamp according to the present invention includes:
A vehicular lamp that is disposed at a predetermined position of a vehicle door mirror device, has a belt-like shape, and a light-emitting unit having a light-emitting element on a surface on one side thereof is surface-mounted, and light emission on an opposite surface A flexible board having a heat dissipation plate attached to a position opposite to the part, a reflector that holds the flexible board and exposes the light emitting part, and a light reflecting surface adjacent to the opening, and a door mirror device side It is a member to be attached, and includes a base member in which a reflector is combined so as to accommodate a flexible substrate, and a cover member integrally attached to the base member so as to cover the reflector.

  According to the present invention, the flexible substrate having a belt-like shape in which the heat radiating plate is attached to the surface opposite to the light emitting portion on the surface opposite to the surface mounted surface exposes the light emitting portion. It is held by a reflector having an opening and a light reflecting surface adjacent to the opening. Here, heat is generated when the light emitting unit having the light emitting element is operated, but for example, a flexible substrate formed thin is generally not so high in heat dissipation, so that the heat cannot be efficiently radiated to the outside, This causes instability of operation such as luminance degradation in the light emitting part. However, as in the present invention, the heat radiation plate is attached to the flexible substrate at a position opposite to the light emitting part. The heat dissipation is improved through this, and the heat generated by the operation of the light emitting unit can be efficiently dissipated to the outside.As a result, the temperature rise due to the heat generation of the light emitting unit can be suppressed and the luminance deterioration can be reduced to stabilize the operation. Can be secured. Further, the heat radiation plate can shield from external electromagnetic waves.

  Also, the base member attached to the door mirror device side is combined with the reflector so as to accommodate the flexible substrate, and the cover member is integrally attached to the base member so as to cover the reflector, so that it is configured as a single unit It is possible to provide a reliable vehicular lamp simply by attaching the base member to a predetermined position of the door mirror device.

Moreover, as a specific aspect of the vehicular lamp of the present invention,
The heat radiating plate can be made of Al or Al alloy. According to this, Al or Al alloy can be plate-like, foil-like, or layer-like plates, and has excellent thermal conductivity, so that heat dissipation is further improved and heat generated by the light emitting part is reduced. Heat can be efficiently radiated to the outside. In addition, since the Al plate generally has strength, the flexible substrate is prevented or suppressed from being bent at the position where the light emitting unit is mounted, that is, the position corresponding to the Al plate, so that no excessive load is applied to the light emitting unit and stable. Can be implemented.

Moreover, the vehicular lamp of the present invention is
In the reflector, a sandwiching portion that sandwiches the light emitting portion is formed at the inner edge of the opening, and the light emitting portion is sandwiched by the sandwiching portion so that the flexible substrate can be held by the reflector.

  Usually, as a method for fixing the flexible substrate to the fixed member (reflector or base member), as described above, a double-sided tape is applied to a predetermined position on the back surface or the front surface of the substrate and the double-sided tape is adhesively fixed to the fixed member. However, it is difficult to perform uniform positioning only with this method. Some fixed members (reflectors) have an opening that exposes the light emitting part at a position corresponding to the light emitting part of the flexible substrate, and positioning the light emitting part in the opening allows a certain degree of positioning. Although this can be done, the opening is provided with a clearance with respect to the light emitting portion, and there is a possibility that the position will be displaced by the clearance. According to the present invention, a flexible substrate having a strip shape in which a light emitting portion is surface-mounted includes an opening that exposes the light emitting portion and a light reflecting surface adjacent to the opening, and is provided at the inner edge of the opening. It is held by a reflector in which a clamping part for clamping the light emitting part is formed. According to this, since the light emitting part surface-mounted on the flexible substrate is sandwiched by the sandwiching part formed on the inner edge of the opening of the reflector, the light emitting part is fixed and the light emitting part is positioned. The flexible substrate can be fixed with. That is, the positioning step of the light emitting part (flexible substrate) is not required, and the light emitting part is necessarily positioned by simply fixing the light emitting part to the opening (in other words, the positioning and fixing of the light emitting part can be performed simultaneously). . As a result, since it is clamped by the clamping part formed in the inner edge of an opening part, there is no fear that it may shift | deviate by the bending of a flexible substrate etc., for example.

  When assembling the flexible substrate to the reflector, that is, when assembling the light emitting portion to the holding portion of the opening, the light emitting portion is directed from behind to the opening through the flexible substrate using a finger or a dedicated jig. Press and press-fit so that the light emitting part is sandwiched in the sandwiching part. Usually, the light emitting part is mounted on the surface of the flexible board by soldering, and the flexible board having excellent flexibility may be bent when it is press-fitted into the sandwiching part (opening part). However, if a strong heat radiating plate (hard plate) is provided at a position opposite to the light emitting part, the entire surface of the heat radiating plate (hard plate) emits light. Since this will press the part, the flexible board will not bend in the vicinity of the light emitting part (area corresponding to the heat dissipation plate), the stress concentration on the solder can be reduced, and the light emitting part can be easily held by the sandwiching part. Can be assembled.

Moreover, the vehicular lamp of the present invention is
The base member, when combined with the reflector, is located behind the light emitting portion fixed to the holding portion of the opening portion of the reflector via a heat radiating plate to prevent the light emitting portion from coming off from the opening portion. It can be configured such that a stop is formed.

  According to the present invention, the base member attached to the door mirror device side is positioned via the flexible substrate (heat radiating plate) behind the light emitting part fixed to the holding part of the opening of the reflector in a state of being combined with the reflector. Thus, a retaining portion for preventing the light emitting portion from coming off from the opening is formed. According to this, since the retaining portion is formed behind the light emitting portion fixed to the opening (clamping portion), it is possible to prevent the light emitting portion from coming out of the opening. Furthermore, when the light emitting part is fixed by the clamping part, it has a double structure of fixing (clamping) by the clamping part and prevention of removal by the retaining part (fixing and supporting from behind), and the light emitting part is opened. Can be securely fixed. As a result, the range determined by the light emitting portion emitting light can be reliably irradiated.

Moreover, the vehicular lamp of the present invention is
The reflector is provided with a pair of convex rails extending in the longitudinal direction of the flexible board on both sides of the opening in the vicinity of the opening on the side holding the flexible board, and heat is radiated to the convex rail. It is possible to adopt a configuration in which a plate is fitted. According to this, since the heat radiating plate is fitted in the convex rail portion, that is, the heat radiating plate is fixed to the convex rail portion in the width direction of the flexible substrate, positioning in the width direction of the flexible substrate and the flexible substrate It is possible to prevent misalignment of the (light emitting portion) and to fix it reliably. As a result, the range determined by the light emitting portion emitting light can be reliably irradiated.

Moreover, the vehicular lamp of the present invention is
It is possible to adopt a configuration in which the heat radiating plate is formed in accordance with the width of the flexible substrate. According to this, since the heat radiating plate is formed according to the width of the flexible board, bending of the flexible board is prevented or suppressed in the heat radiating plate forming region, and stress concentration on the solder etc. for mounting the light emitting part is prevented. Or it can suppress and can protect a light emission part. Moreover, since both are formed in the substantially same width | variety, a heat sink can be attached to the position defined easily.

The vehicular lamp of the present invention is
A configuration may be adopted in which the sandwiching portion is formed at the inner edge of the opening so as to face each other in the longitudinal direction of the flexible substrate. For example, when the flexible substrate is held by the reflector (when the light emitting unit is fixed to the opening), the flexible substrate has a strip shape, and thus is bent (flexed) in the thickness direction. Fixed. At this time, since the flexible substrate is in a curved state, it is easily deformed, that is, moved (displaced) in the longitudinal direction, but since the light emitting portion is sandwiched along the longitudinal direction, the flexible substrate is effectively flexible. The substrate can be fixed.

The vehicular lamp of the present invention is
The sandwiching portion can be configured to be formed on the inner edge of the opening so as to face each other in the longitudinal direction and the width direction of the flexible substrate. According to this, since the sandwiching portion is formed on the inner edge of the opening so as to face each other in the longitudinal direction and the width direction of the flexible substrate, the flexible substrate can be positioned and prevented from shifting in the longitudinal direction and the width direction.

In order to solve the above-described problems, a vehicle door mirror device of the present invention includes:
A vehicular lamp having the above-described configuration is provided. According to this, the vehicle door mirror device can be integrally provided with the vehicle lamp having the above-described effects.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present embodiment mainly exemplifies a vehicle door mirror device mounted on a door of an automobile (vehicle) and a vehicle lamp attached to the vehicle door mirror device, but the present invention is not limited to these. Various modifications based on the knowledge of those skilled in the art are possible without departing from the scope of the claims.

  FIG. 1 is a perspective view showing a mounting state of a vehicle door mirror device according to the present invention, FIG. 2 is a front view of the vehicle door mirror device according to the present invention, and FIG. 3 is a mounting state of a vehicle lamp according to the present invention. FIG. As shown in FIGS. 1 to 3, the vehicle door mirror device 100 is attached to doors D provided on both sides of the vehicle C, for example. The vehicle door mirror device 100 includes a mirror base portion 101 attached to the door D, and a mirror main body portion 102 supported by the mirror base portion 101.

  The mirror main body 102 is provided on the rear side of the vehicle C so that a driver or a passenger can check the rear, a mirror holder (not shown) that holds the mirror, Actuator for adjusting the angle, vehicular lamp 1 serving as a direction indicator, housing 104 for housing and protecting the mirror, actuator, vehicular lamp 1 and the like, and role of a frame to which the actuator is attached A mounting base (not shown) for connecting the mirror, the actuator, and the vehicular lamp 1 to the housing 104, and a mirror base attached to one end of the mounting base. The electric storage device 1 that rotates the mirror main body 102 at a position between the use state and the storage state with respect to the portion 101. 3 composed of and a. The housing 104 has a vessel-like shape as a whole, and can be integrally formed of, for example, a plastic material, and a window portion 105 is formed at a predetermined location. The vehicle lamp 1 is mounted so as to be exposed to the outside corresponding to the window 105, and in this state, a light emitting part (described later) of the vehicle lamp 1 blinks, lights up, etc., thereby functioning as a direction indicator or the like. Then, other traffic will be shown to turn left or right or change course.

  Next, the vehicle lamp 1 will be described in detail. FIG. 4 is an exploded perspective view of the vehicular lamp 1. As shown in FIG. 4, the vehicular lamp 1 includes a flexible substrate 2 having a belt-like shape, a reflector 3 that holds the flexible substrate 2 in a state of being disposed inside, and a reflector 3 that houses the flexible substrate 2. A base member to be mounted; a cover member that is integrally attached to the base member so as to cover the reflector; and a seal member that seals a gap between the cover member and the inner edge of the window portion of the housing. ing.

  FIG. 5 is a plan view (A), a bottom view (B), and a side view (C) showing the main part of the flexible substrate 2. As shown in FIGS. 4 and 5, the flexible substrate 2 (hereinafter also referred to as a substrate) includes a flexible substrate body 21 (hereinafter also referred to as a substrate body) and a lead portion for supplying battery power to a light emitting unit described later. 22 and a connector part 23 are provided. The substrate main body 21 is a copper-clad plate with excellent flexibility using polyimide, polyester or the like as a base film, which is patterned and can be used by being coated with an insulating film or a liquid resist. A base material epoxy resin, a glass cloth base material epoxy resin, a glass cloth base material BT resin, etc. can be selected. The substrate main body 21 is rich in flexibility, has a thin layer shape, and is a light emitting diode (LED) on one side surface 21a (the upper surface in the drawing; hereinafter also referred to as the surface 21a). Light emitting portions 24a, 24b, 24c, and 24d (hereinafter collectively referred to as light emitting portions 24) having light emitting elements are surface-mounted by soldering or the like so as to be connected to a pattern printed wiring, Hard plates 25a, 25b, and 25c (hereinafter sometimes collectively referred to as the hard plate 25) are double-faced tapes at positions facing the light emitting portion 24 of the surface 21b (the lower surface in the drawing; hereinafter also referred to as the back surface 21b). Etc. are attached and fixed by adhesion. In the present invention, the hard plate corresponds to the heat radiating plate and is provided at a position corresponding to the light emitting portion in the substrate body, so that the heat generated by the light emitting portion can be effectively radiated.

  When the lead body 22 side is the base end and the opposite side is the front end in the substrate body 21, two light emitting sections 24 are disposed in the distal end area of the substrate body 21 (light emitting section 24a and light emitting section 24b), and 1 in the central area. One (light emitting part 24c) and one (light emitting part 24d) are mounted on the base end region. The light emitting units 24a and 24b in the front end region and the light emitting unit 24c located in the central region mainly serve as a direction indicator, and in particular, in the front end region, two are mounted side by side in the width direction of the substrate body 21, thereby As shown in FIG. 13 (a), it is possible to reliably irradiate a region within 15 degrees above and below the horizontal line O1 even on the rear of the vehicle, which is difficult to irradiate due to the shape and mounting angle of the door mirror device 100 for use. it can. In addition, as will be described later, by providing the light emitting portions at positions spaced apart from each other by a predetermined distance in the central region and the proximal end region, not only the design effect in the vehicle door mirror device 100 by irradiation of the light emitting portions 24c and 24d is produced, The substrate body 21 is fixed to the reflector 3 at three locations, and the flexible substrate 2 can be held more stably.

  The hard plate 25 (heat dissipating plate) may be any material as long as it is harder than at least the flexibility (flexibility) of the flexible substrate body 21, and may be a metal such as copper, silver, gold, aluminum, nickel, platinum, or palladium. The material or inorganic material (non-metallic material) such as ceramic is not particularly limited, but a metal with high heat dissipation, such as copper, but in consideration of corrosion and cost, this embodiment In the present invention, an Al plate made of aluminum or an aluminum alloy is used as the metal material. Since the light emitting part 24 generates heat with irradiation, the heat radiation can be efficiently promoted by using an Al plate for the opposite back surface 21b. As a result, temperature rise due to heat generation of the light emitting unit 24 can be suppressed, luminance deterioration can be reduced, and a long life can be realized.

  The lead part 22 includes a fixing part 22 a for fixing the lead part 22 to a lead fixing hole 47 formed in the base member 4. The fixing portion 22a can be formed of a rubber material having elasticity, and is easily inserted into the lead fixing hole 47.

  The flexible substrate 2 is formed symmetrically on a center line (not shown) in the longitudinal direction. For example, a reflector 3 to be described later that holds the flexible substrate 2 is provided symmetrically on both sides (left and right) of the vehicle C, and thus becomes a dedicated component for each of the left and right, but has a different shape. . By using this flexible substrate 2, the flexibility of the flexible substrate 2 can be used as a left / right shared component by covering the difference in shape of the left / right dedicated component. As a result, the number of parts can be reduced and the manufacturing cost can be suppressed.

  6A and 6B are a perspective view 1A viewed from above showing the reflector 3, a perspective view 2B viewed from below, and a bottom view C of FIG. As shown in FIGS. 4 and 6, the reflector 3 only needs to have a surface finish that reflects the light irradiated by the light emitting portion, and can appropriately select a material such as metal, resin, ceramic, for example, vapor deposition, It can be a metallic material such as a resin material that has been subjected to gloss coating or plating, or aluminum that has been subjected to a mirror finish. The reflector 3 has a reflector main body 31 that is curved toward the tip in a side view (not shown) following the shape of the vehicle door mirror device 100 (housing 104), and the reflector main body 31 is predetermined. Wall portions 32a, 32b, and 32c (hereinafter sometimes collectively referred to as wall portions 32) formed to protrude or dent on the upper surface of the reflector main body 31 at a given position (position corresponding to the light emitting portion 24); Openings 33a, 33b, and 33c (hereinafter collectively referred to as openings 33) that expose the light emitting portion 24 of the flexible substrate 2 that penetrates the wall portion 32 in the thickness direction and is held inside the reflector body 31. ) And reflecting surfaces 34a, 34b, 34c (hereinafter referred to as reflection surfaces 34a, 34b, 34c) that reflect the irradiation of the light emitting portion 24 exposed from the opening portion 33 adjacent to the wall portion 32 within a desired range. And a pair of convex rail portions 36a, 36b, 36c extending in parallel on both sides of the opening portion 33 in the vicinity of the opening portion 33 on the back surface (inner side surface) of the wall portion 32. And.

  Further, inside the reflector main body 31, there are a lead holding portion 37 that holds the lead portion 22 of the flexible substrate 2, and a locking hole portion 45 of the base member 4 for mounting (merging) the reflector main body 31 to the base member 4. And a notch portion 39 that is notched for the purpose of assembling workability.

  FIG. 7 is a front view and a cross-sectional view of the wall portion 32 corresponding to the A portion, the B portion, and the C portion in FIG. As shown in FIG. 7A, a rectangular opening 33a is formed in the wall 32a, and a claw-shaped holding part 35a is formed on the inner edge thereof so as to face each other. The sandwiching portion 35a is a set of two on one side facing each other at the inner edge of the opening and two on the other side, and one light emitting portion 24 is fitted between the four sandwiching portions 35a facing each other. Thereby, the position shift of the light emission part 24 etc. can be prevented or suppressed. As shown in the sectional view, a convex rail portion 36a is formed on the back surface (inner side) of the wall portion 32a, and the sandwiching portion 35a extends in the direction in which the convex rail portion 36a extends (the length of the flexible substrate 2). Direction). As will be described later, since the light emitting unit 24 and the rigid plate 25 are fixed to the sandwiching portion 35a and the convex rail portion 36a, the sandwiching portion 35a is positioned in the longitudinal direction of the flexible substrate 2 and the convex rail portion 36a is positioned in the width direction. And prevention of deviation can be performed.

  The sandwiching portion 35a has a tapered shape toward the tip. Specifically, the inner side of the reflector body 31 forms an inclined surface 135a that slopes toward the tip. Accordingly, when the light emitting unit 24 is fitted into the holding portion 35a, the light emitting unit 24 is guided along the inclined surface 135a and can be easily fitted. The wall portions 32b and 32c in FIGS. 7B and 7C are also formed in the same configuration as the wall portion 32a, and as the inclined surface 135b and the inclined surface 135c are formed, The inclination angle is large. Thereby, the light emission part 24 can be smoothly fitted in the clamping part 35.

  Next, FIG. 8 is a perspective view (A), a plan view (B), and a bottom view (C) as seen from above showing the base member. As shown in FIGS. 4 and 8, the base member 4 may be any member as long as a cover member 5 described later can be welded or adhered, and is formed of a thermoplastic resin such as ABS resin or ASA resin, for example, and is a vehicle door mirror. Following the shape of the device 100 (housing 104), the device is curved toward the tip in a side view (not shown). The base member 4 is formed over substantially the entire area in a plan view, and is formed in a shape in which the above-mentioned reflector 3 is fitted (attached), and is raised on the bottom surface of the above-mentioned concave portion 41. Retaining portions 42a, 42b, 42c (hereinafter referred to as “preventing portions”) for preventing the light emitting portion 24 from coming off from the opening 33 through the hard plate 25 behind the light emitting portion 24 fixed to the holding portion 35 of the third opening 33. (Also collectively referred to as a retaining portion 42), an annular adhesive portion 44 formed on the peripheral edge of the housing recess 41 and integrally bonded (welded) to the peripheral edge portion 53 of the cover member 5, and the reflector 3 The locking hole portion 45 to which the pawl portion 38 is engaged, the attachment portion 46 for attaching the vehicle lamp 1 to the vehicle door mirror device 100 side, and the fixing portion 22a of the lead portion 22 of the flexible substrate 2 are fixed. And a lead-fixing bore 47.

  The retaining portion 42 is in a state in which the base member 4 is united with the reflector 3, that is, the reflector 3 is positioned in the storage recess 41 of the base member 4, and the engagement claw portion 38 and the engagement hole portion 45 are engaged. In this state, the hard plate 25 in the flexible substrate 2 is pressed in the direction in which the light emitting unit 24 is pushed into the opening 33, or the stopper surfaces 43a, 43b, 43c approaching each other (hereinafter collectively referred to as the stopper surface 43). May form). According to this, since the stopper surface 43 is located behind the light emitting part 24 via the hard plate 25, for example, since the flexible substrate 2 has flexibility, the light emitting part 24 receives the external force such as pulling, and the light emitting part 24 holds the holding part 35 ( The stopper surface 43 can also restrict its movement via the hard plate 25 when it is about to be pulled out from the opening 33). As a result, the position shift of the light emission part 24 can be prevented, and reliable irradiation can be performed.

  Returning to FIG. 4, the cover member 5 will be described. The cover member 5 is formed of, for example, a transparent or translucent thermoplastic resin such as polymethyl methacrylate (PMMA), polycarbonate (PC), polypropylene (PP), or ABS resin, and the vehicle door mirror device 100 (housing 104). Dome-shaped lens portion 51 that is curved toward the tip in a side view (not shown), is exposed from window portion 105 formed in housing 104, and projects into a dome shape, A cover base 52 that is integrally attached to the base member 4 is provided adjacent to the dome-shaped lens portion 51. The peripheral edge 53 of the cover base 52 is bonded to the annular bonding portion 44 of the base member 4 by a method such as heat welding. Further, the seal member 6 is formed in a shape along the connecting portion between the dome-shaped lens portion 51 and the cover base portion 52 of the cover member 5, and is interposed between the inner edge of the window portion 105 at the connecting portion position. In addition, it is possible to prevent water droplets such as rain, dust and wind from entering the mirror body 102.

  Next, an example of a method for assembling the vehicle lamp 1 and the vehicle door mirror device 100 according to the present embodiment will be described. 9 is a diagram showing an example of the assembly method, FIG. 10 is a diagram showing an example of the assembly method when FIG. 9 is viewed from another direction, FIG. 11 is a diagram following FIG. 9 and FIG. 10, and FIG. It is a figure following FIG. First, the flexible substrate 2 is mounted inside the reflector 3. Specifically, as shown in FIG. 9A, the light emitting portions 24a and 24b provided in the tip region of the flexible substrate main body 21 are connected to the opening 33a formed in the wall portion 32a of the reflector 3 from the inside to the outside. The light emitting portions 24a and 24b are pressed and fitted so as to be sandwiched by the sandwiching portion 35a (see FIG. 9B). At this time, as shown in FIG. 10A, a hard plate 25a is provided on the back surface 21b of the light emitting portions 24a, 24b of the substrate main body 21 opposite to each other. Since the light emitting portions 24a and 24b are pushed from behind through the hard plate 25a using the, the load for pushing the light emitting portions 24a and 24b becomes the entire surface by the hard plate 25a, and the load is dispersed and the stress is concentrated on the solder. Breakage can be prevented or suppressed. As a result, the yield is improved because it is not damaged. In addition, since the clamping part 35a is formed along the longitudinal direction of the substrate body 21, the light emitting parts 24a and 24b are positioned in the longitudinal direction and further fixed (prevented from shifting).

  At this time, the light emitting portions 24a and 24b are pushed through the hard plate 25a, and the hard plate 25a is pushed between the pair of convex rail portions 36a provided on the back surface (inner side surface) of the wall portion 32a of the reflector 3. It is. Thereby, the hard plate (heat radiating plate) 25a not only plays a role of radiating heat generated by the operation of the light emitting portions 24a and 24b, but the hard plate 25a is disposed on the convex rail portion 36a in the width direction of the substrate body 21. It will be positioned and fixed. As a result, since the hard plate 25a is positioned and fixed, the light emitting portions 24a and 24b are positioned and fixed in the opening 33a. According to this, since the light emitting portions 24a and 24b are positioned in the longitudinal direction and the width direction of the substrate body 21, the flexible substrate 2 is assembled to the reflector 3 at an accurate position without using a special positioning jig. Can do. Furthermore, since it is fixed in the two directions, the occurrence of deviation can be prevented or suppressed. Since the light emitting portion can be positioned and fixed (temporarily fixed), the flexible substrate 2 does not have to be fixed to the reflector 3 by a conventional double-sided tape.

  In addition, as shown in the cross-sectional view of FIG. 7A, the holding portion 35a is formed with an inclined surface 135a having a relatively small inclination angle, and therefore the light emitting portions 24a and 24b can be smoothly formed along the inclined surface 135a. Can be fitted. Furthermore, since the inclined surface 135a has a relatively small inclination angle, in other words, since the portion to be sandwiched (light emitting portion contact area) is relatively wide, the inclined surface 135a can be held more firmly. Position shift of the light emitting part can be prevented or suppressed, and irradiation within a desired irradiation range can be stably obtained.

  The sandwiching portion 35a and the convex rail portion 36a may be formed by including the outer dimensions of the light emitting portions 24a and 24b and the hard plate 25a and the design error, and a certain amount of clearance (larger than the outer dimensions) is provided as appropriate. Thus, it may only be responsible for positioning. In that case, since the light emitting part (flexible substrate) can be positioned, it can also be fixed with a double-sided tape as in the past.

  Subsequently, returning to FIG. 10A, similarly to the assembly of the light emitting parts 24a and 24b, the light emitting part 24c and the light emitting part 24d are opened through the hard plates 25b and 25c, and the opening 33b (clamping part 35b) and the opening. The flexible substrate 2 can be attached to the inside of the reflector 3 by being press-fitted into and inserted into the 33c (clamping portion 35c), and by further engaging the lead portion 22 so as to be sandwiched between the projecting lead holding portions 37. (See FIG. 10B).

  Next, as shown in FIG. 11A, the reflector 3 holding the flexible substrate 2 and the base member 4 are relative to each other in such a manner that the flexible substrate 2 is sandwiched between the reflector 3 and the base member 4 (stored shape). Then, the reflector 3 is relatively pushed into the housing recess 41 of the base member 4, and each locking claw portion 38 of the reflector 3 is engaged with the corresponding locking hole 45 of the base member 4. (See FIG. 11B). Specifically, as shown in FIG. 11B, the stopper surface 43 of the retaining portion 42 provided on the base member 4 is positioned behind each light emitting portion 24. At this time, the stopper surface 43 may be designed so as to press the hard plate 25 toward the light emitting part, or may be in contact with or just approach the hard plate 25. As a result, the light emitting unit 24 is not only positioned and fixed in the two directions of the longitudinal direction and the width direction of the flexible substrate body 21 as described above, but also fixed (prevented from coming off) in the two directions in the two directions. Will be. That is, after the flexible substrate 2 is temporarily fixed to the reflector 3, it is completely fixed using the base member 4. As a result, since the light emitting part 24 mounted at a position spaced apart by a predetermined distance is positioned and fixed, the flexible substrate 2 on which the light emitting part 24 is mounted is bonded between the reflector 3 and the base member 4 using a double-sided tape or the like. Fixing can be performed without using. If the lead portion 22 is inserted through the lead fixing hole 47 of the base member 4 in advance and the fixing portion 22a is fixed to the lead fixing hole 47, the mounting is smooth.

  Next, as shown in FIG. 12, the cover member 5 is attached to the base member 4 to which the reflector 3 is attached. Specifically, either or both of the annular adhesive portion 44 formed on the base member 4 and the peripheral edge portion 53 of the cover member 5 (cover base portion 52) are heated and melted with an iron plate or the like, and further crimped. Thus, the cover member 5 can be welded (bonded) to the base member 4. Thereby, the flexible substrate 2, the reflector 3, the base member 4, and the cover member 5 are formed as an integral unit. And the vehicle lamp 1 is completed by attaching the sealing member 6 to the periphery of the dome-shaped lens part 51 of the cover member 5 with a double-sided tape or an adhesive. And the vehicle lamp 1 is assembled | attached to the hole formed in the attaching part 46 of the base member 4 in the predetermined position of the vehicle door mirror apparatus 100 assembled by the known assembly method through fastening members, such as a screw, The connector part 23 is connected to the connector on the vehicle door mirror device 100 side, and the housing 104 is mounted to complete the vehicle door mirror device 100. Note that the seal member 6 may be formed in advance at a position along the window 105 formed in the housing 104. In that case, the seal member 6 is removed and the vehicle lamp 1 is completed. Become.

  In the present embodiment, the flexible substrate 2 is illustrated as having the hard plate 25, but the present invention is not limited to this, and the hard plate 25 can be omitted from the flexible substrate 2. In that case, the stopper surface 43 of the retaining portion 42 of the base member 4 is positioned behind the light emitting portion 24, and the stopper surface 43 directly presses or approaches the flexible substrate body 21 so that the light emitting portion 24 is not detached. Therefore, the stopper surface 43 may be provided with a heat radiating plate, or the stopper surface 43 (the retaining portion 42) itself may have a heat radiating property. According to this, while attaching the reflector 3 to the base member 4, a heat radiating plate (stopper surface) will be attached to the position facing the light emission part of the flexible substrate 2, and a stopper surface is a heat radiating surface (in this case). In the present invention, the stopper surface corresponds to the heat radiating plate.), And the heat generated by the light emitting portion can be effectively radiated. Even when the hard plate 25 is omitted from the flexible substrate 2, the light emitting unit 25 can be sufficiently positioned and fixed (prevented from being displaced) by the clamping unit 35 provided at the inner edge of the opening 33 of the reflector 3. Thus, a simpler configuration can be obtained, the number of parts can be reduced, and the manufacturing cost can be suppressed.

  Next, a modification of the above embodiment will be described. FIG. 13 shows a front view (corresponding to FIG. 7) of the wall portion of the reflector in the modified example. In the modification, the description of the same parts as in the above embodiment will be given the same reference numerals, and the detailed description will be omitted or simplified. As shown in FIG. 13A, the inner edge of the opening portion 33a of the wall portion 32a in the modification is opposed in the width direction of the flexible substrate 2 apart from the sandwiching portion 35a opposed in the longitudinal direction of the flexible substrate 2. A sandwiching portion 136a is formed. According to this, the light emitting part 24 can be positioned and fixed in two directions of the longitudinal direction and the width direction of the flexible substrate 2. Further, as indicated by a broken line in FIG. 13A, a partition part 133a that partitions the opening 33a may be formed, and a sandwiching part 136a may be formed on the inner edge of the partition part 133a. As a result, the flexible substrate 2 can be positioned and fixed in the width direction. In this case, since the positioning in the width direction is performed, the hard plate 25 can be omitted. In this case, the stopper surface 43 described above may be a heat radiating plate. Similarly, as shown in FIG. 13B and FIG. 13C, a sandwiching portion 136b and a sandwiching portion 136c that are opposed to each other in the width direction of the flexible substrate 2 at the inner edges of the opening 33b and the opening 33c are formed. Thus, the same effect as that indicated by the broken line in FIG. In addition, the formation position of a clamping part is not limited to these, For example, you may provide on a radiation and it is good also as a shape which fits the corner | angular part of a light emission part in the front-end | tip part of a clamping part.

  Another modification will be described. 15 is a plan view (A) and a side view (B) (corresponding to FIG. 6) showing the main part of the flexible substrate in another modified example, and FIG. 16 is a diagram showing an example of an assembly method in another modified example. (Corresponding to FIG. 11B). In this modification as well, the description of the same part as in the above embodiment is given the same reference numeral, and the detailed description is omitted or simplified. As shown in FIG. 15, light emitting portions 24 a, 24 b, 24 c, and 24 d are provided in the front end region, the central region, and the base end region of the substrate main body 21 on the surface 21 a (light emitting portion mounting side surface) of the flexible substrate main body 21. The heat sink plates (hard plates) 25a, 25b, and 25c are attached to the opposite back surfaces. Double-sided tapes 26 a, 26 b, and 26 c (hereinafter sometimes collectively referred to as double-sided tape 26) are provided in a state where the surface can be adhered at a position where the light emitting unit 24 is sandwiched in the longitudinal direction of the substrate body 21. According to this, the heat radiating plate 25 effectively radiates the heat generated by the light emitting unit 24 and the double-sided tape 26 is provided on both sides (in the longitudinal direction of the substrate body) of the light emitting unit 24. It can be fixed stably.

  Next, as shown in FIG. 16, according to an assembling method in another modification, the double-sided tape 26 provided on the flexible substrate body 21 is bonded to both sides of the opening 33 of the reflector 3. Accordingly, the light emitting unit 24 is disposed and fixed so as to be exposed from the opening 33. In another modification, the flexible substrate 2 can be bonded and fixed to the reflector 3 by the double-sided tape 26, so that the retaining portion of the base member 4 is omitted, and the holding portion 35 at the inner edge of the opening 33 of the reflector 3. Is omitted. In addition, these can be utilized in combination as appropriate, and the above-described effects can be achieved by combining them. Since a heat radiating plate (hard plate) is formed behind the light emitting unit 24, the heat radiating property is excellent.

The perspective view which shows the attachment state of the door mirror apparatus for vehicles which concerns on this invention. The front view of the door mirror device for vehicles concerning the present invention. The figure which shows the attachment state of the vehicle lamp which concerns on this invention. The disassembled perspective view of the vehicle lamp which concerns on this invention. The top view which shows the principal part of a flexible substrate, a bottom view, and a side view. The perspective view seen from the upper direction and the downward direction which shows a reflector, and a bottom view. The front view and sectional drawing of the wall part corresponding to FIG. The perspective view seen from the upper side which shows a base member, a top view, and a bottom view. The figure which shows an example of the assembly method. The figure which shows an example of the assembly method which looked at FIG. 9 from another direction. The figure which shows an example of the assembly method following FIG.9 and FIG.10. The figure which shows an example of the assembly method following FIG. The front view of the wall part corresponding to FIG. 7 which concerns on a modification. Explanatory drawing which shows an irradiation range area | region. The top view and side view which show the principal part of the flexible substrate which concerns on another modification. The figure which shows an example of the assembly method which concerns on another modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle lamp 2 Flexible board 3 Reflector 4 Base member 5 Cover member 6 Seal member 21 Flexible board main body 22 Lead part 23 Connector part 24 Light emission part 25 Hard plate (Heat dissipation plate)
DESCRIPTION OF SYMBOLS 31 Reflector main body 32 Wall part 33 Opening part 34 Reflecting surface 35 Clamping part 36 Convex rail part 41 Storage recessed part 42 Retaining part 43 Stopper surface 44 Annular adhesion part 51 Lens part 100 Vehicle door mirror apparatus 101 Mirror base part 102 Mirror main body part 104 Housing 105 Window

Claims (4)

A vehicle lamp disposed at a predetermined position of a vehicle door mirror device,
A flexible substrate having a belt-like form, a light-emitting part having a light-emitting element on one surface thereof, and a heat dissipation plate attached to a position opposite to the light-emitting part on the opposite surface;
A reflector having an opening for holding the flexible substrate and exposing the light emitting portion and a light reflecting surface adjacent to the opening;
A member attached to the side of the door mirror device, the base member in which the reflector is combined in a form to accommodate the flexible substrate;
A cover member integrally attached to the base member so as to cover the reflector;
A vehicular lamp characterized by comprising:   The vehicular lamp according to claim 1, wherein the heat dissipation plate is made of Al or an Al alloy. The reflector is formed with a sandwiching part that sandwiches the light emitting part at the inner edge of the opening,
The vehicular lamp according to claim 1 or 2, wherein the light emitting unit is sandwiched by the sandwiching unit, and the flexible substrate is held by the reflector.   A vehicle door mirror device comprising the vehicle lamp according to any one of claims 1 to 3.

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