JP4546434B2 - Lamp device for vehicle - Google Patents

Description

  The present invention relates to a vehicular lamp device in which a light source is formed by a plurality of LEDs, and more particularly to a vehicular lamp device that forms an auxiliary lamp such as a side turn signal lamp or a side marker lamp.

In a conventional vehicle lamp device, in particular, a lamp device using a plurality of LEDs, a housing for holding the LED substrate, a reflector provided around the LED, and the reflector based on an LED substrate on which a plurality of LEDs are mounted. It consists of a lens etc. which permeate | transmits the light from the said LED reflected in the forward. And these are integrated on the basis of the said housing, and the lamp device for vehicles is formed. In such a configuration, in general, heat welding means, ultrasonic welding means, screwing means, or the like is adopted for mounting (storing) the LED board in the housing. It is.
JP-A-2005-319909

  By the way, in the said conventional thing, complicated work processes, such as a heat welding process or a screwing process, are required, and there exists a problem that work efficiency is not good. Further, there is a problem that there is a risk of damaging a circuit pattern or the like on the substrate during the heat welding operation process. In order to solve such problems, it is possible to fix the substrate in the housing without using a heat welding means, etc., which is excellent in assembling workability and excellent in fixing property of the substrate. An object (problem) of the present invention is to provide a vehicular lamp device having a special substrate fixing structure.

In order to solve the above problems, the following measures are taken in the present invention. That is, in the first invention which is the invention of claim 1, an LED board to which a plurality of LEDs are attached, a housing for holding the LED board and containing each component including the LED board, A vehicle comprising: a reflector that is provided around the LED and serves to reflect light from the LED; and a lens that transmits light from the LED and light reflected by the reflector in a predetermined direction. With respect to the lamp device, the LED substrate fixing structure is provided in a part of the housing, and is formed in a recess-like substrate holding part formed to hold one end side of the LED substrate, and a part of the reflector A board holding portion formed to hold the other end side of the LED board, and the housing or the lid. It is formed so as to protrude upright from either side of the reflector, and is formed on either one of the hook-like engaging claw made of an elastic body and part of the reflector vertical wall or part of the housing. a reflector housing coupling portion be those provided consisting engaging hole or the engagement portion formed to engage with the engagement claws, to consist, in those having such a configuration, the A substrate holding portion formed on a part of the reflector is formed so as to be elastically deformable, and when the reflector and the housing are coupled by the coupling action of the reflector / housing coupling portion, the LED substrate side is A force that acts to hold the LED board from the board holding part side to the housing side and is formed by elastic deformation of the board holding part. It was decided to take on the configuration to work.

  According to the first invention, the assembly work of the entire vehicle lamp device or the assembly work of each part, including fixing the LED substrate to the housing, can be carried out neatly and efficiently. Become. That is, there is no need for heat welding work or screwing work on the housing of the LED board, which has been done in the past, and it is only necessary to assemble the LED board and further the reflector etc. sequentially on the basis of the housing. By continuously performing such operations, a vehicular lamp device is finally formed. In addition, by eliminating the need for heat welding, there is no need to consider circuit pattern damage or the like on the LED substrate during work that has been a concern in conventional products, and the efficiency of assembly work can be improved. became.

Further, according to the present invention, it is possible to improve the efficiency of assembly work. Further, in addition to these, in the present invention, it is possible to prevent the LED substrate from rattling and the like after being assembled. That is, in the present invention, the LED substrate on which the LED is mounted is held by a recess-like substrate holding portion provided at one end of the housing, and in this state, the LED substrate is already One end portion side is pressed against the recess-shaped substrate holding portion side through the substrate pressing portion provided in the reflector. That is, when the reflector is mounted (attached) on the LED substrate, the LED substrate is pressed against the substrate holding portion side provided in the housing by the elastic force formed by elastic deformation of the substrate pressing portion. Will be. As a result, the LED substrate is securely held by the elastic force (spring reaction force) at the substrate holding portion of the housing. As a result, the LED substrate is not rattled in the housing during traveling of the vehicle and the like, and the protection of the LED or the circuit portion is surely performed.

  The best mode for carrying out the present invention will be described with reference to FIGS. As shown in FIG. 1, an embodiment according to the present embodiment includes an LED substrate 5 to which a plurality of LEDs 6 are attached, and a housing 1 that holds the LED substrate 5 and that accommodates each component including the LED substrate 5. A reflector 2 that is provided around the LED 6 and serves to reflect the light from the LED 6; and a lens 3 that transmits the light from the LED 6 and the light reflected by the reflector 2 in a predetermined direction. The present invention relates to a vehicular lamp device.

  In the vehicular lamp device having such a configuration, in the present embodiment, the fixing structure of the LED substrate 5 has a special configuration as described below. That is, this fixing structure is provided in a part of the housing 1 as shown in FIG. 2, for example, and is a recess-like substrate holding portion 155 formed so as to hold the lower end portion 51 side of the LED substrate 5. A substrate holding portion 25 provided to a part of the reflector 2 and formed to press the upper end portion 52 side which is the other end portion of the LED substrate 5, and a side end of the reflector 2 It is formed so as to protrude upright from the portion, has a hook-like shape, and is provided on the engaging claw 21 formed so as to be elastically deformable and a part of the housing 1. And a reflector / housing coupling portion 121 (see FIGS. 3 and 4) formed by the engaging portion 12 formed so as to engage with the engaging claw 21.

  In addition, as for the configuration of the reflector / housing coupling portion, there can be cited those having configurations as shown in the lower half of FIG. 3 and the lower half of FIG. The configuration of this, that is, the reflector-housing coupling portion 122 is the reverse of that already described (the reflector-housing coupling portion 121). Specifically, as shown in FIGS. 3 and 4, the housing 1 is provided so as to stand upright from the base portion 19 side, has a hook shape, and has a predetermined elasticity. The engaging claw 11 includes an engaging hole 22 that is formed so as to engage with the engaging claw 11 and is provided in a part of the vertical wall of the reflector 2. As described above, one reflector (housing) 121 has a hook-like engaging claw 21 provided on the reflector 2 side and an engaging portion 12 provided with the engaging claw 21 provided on the housing 1 side. The reflector / housing coupling part 121 is formed. On the other hand, in other places, the engaging claw 11 provided on the housing 1 side engages with the engaging hole 22 provided in a part of the vertical wall of the reflector 2 to form the reflector / housing coupling portion 122. It is something that has come to be. By appropriately adopting these two types of coupling structures, the housing 1 and the reflector 2 are securely coupled to each other, and the LED substrate 5 is thereby securely fixed while being sandwiched between the housing 1 and the reflector 2. Will be.

  Next, a method for fixing the LED substrate 5 having such a configuration will be described with reference to FIGS. First, as shown in FIG. 2, for example, the LED substrate 5 having a rectangular shape and having a plurality of LEDs 6 attached thereto has a lower end 51 on one end side around the vertical wall 15 of the housing 1. And is inserted into a substrate holding portion 155 having a recess groove shape and held there. At the same time, the both ends 53 and 54 of the LED substrate 5 in the longitudinal direction of the other substrate holding portions 153 and 154 having a vertical groove shape provided in a part of the vertical wall 15 of the housing 1 are provided. It is inserted so that it slides into place, and it comes to fit in here. As a result, the LED substrate 5 is held in the housing 1 along the vertical wall 15 of the housing 1.

  In such a state, as shown in FIG. 2, when the reflector 2 is attached so as to be covered from the upper side, the hook-like substrate pressing portion 25 provided in a part of the reflector 2 is located on the LED substrate 5. The upper end 52 which is the other end is brought into contact with the substrate pressing portion 25 so that the LED substrate 5 is pressed downward. In particular, in the present embodiment, the engaging claws 11 and 21 are provided so that the coupling structure of the housing 1 and the reflector 2 is provided upright from either side as shown in FIGS. 3 and 4, for example. And the engaging portions 12 or the engaging holes 22 that engage with the engaging claws 11 and 21. And in the state couple | bonded in this way, the said LED board by the elastic deformation of the said board | substrate holding | suppressing part 25 is provided in the place of the bowl-shaped board | substrate holding | suppressing part 25 provided in the said reflector 2 based on the said coupling | bonding action. An elastic force that acts to press 5 downward is applied. Accordingly, when the LED board 5 is correctly mounted between the housing 1 and the reflector 2 in this way, the LED board 5 is fixed between the housing 1 and the reflector 2 without any mounting backlash. It becomes.

  Thus, on the basis of the housing 1, the LED substrate 5 on which the plurality of LEDs 6 are mounted is attached, and the reflector 2 is attached from the upper side via the reflector / housing coupling portions 121, 122. When the lens 3 is attached on the upper side or the outer side, a vehicle lamp device as shown in FIG. 5 is formed. In the vehicle lamp device according to the present embodiment formed as described above, for example, as shown in FIG. 5, the light emitted from the plurality of LEDs 6 is reflected by each reflecting surface 28 of the reflector 2, The light passes through the lens 3 and travels in a predetermined direction as a substantially parallel light beam. And as a result, a specific direction will be irradiated with the light from LED6.

  In the present embodiment having such a configuration, the LED substrate 5 is securely held by the elastic force based on the elastic deformation of the substrate pressing portion 25 formed on the reflector 2 at the housing 1. And the reflector 2 are securely fixed without any looseness. In the present embodiment having such a configuration, the LED substrate 5 is fixed to the housing 1 or the like by using a method that does not use the heat welding means or the like that has been conventionally performed. As a result, it is possible to improve the efficiency of assembly work or parts assembly work, and there is no need to worry about circuit pattern damage during heat welding work, which also improves the efficiency of all assembly work. It became possible to plan.

It is a development perspective view showing the whole composition of the present invention. It is an expansion | deployment perspective view which shows the structure of the housing, LED board, and reflector which make the principal part of this invention. FIG. 3 is a cross-sectional view illustrating a configuration of a reflector / housing coupling portion according to the present invention. It is a cross-sectional view which shows the state in which the reflector housing and lens in this invention were assembled | attached. It is a cross-sectional view which shows the whole structure of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing 11 Engagement claw 12 Engagement part 121 Reflector housing coupling part 122 Reflector housing coupling part 15 Vertical wall 153 Substrate holding part 154 Substrate holding part 155 Substrate holding part 19 Base part 2 Reflector 21 Engaging claw 22 Engagement hole 25 Substrate pressing portion 28 Reflecting surface 3 Lens 5 LED substrate 51 Lower end portion 52 Upper end portion 53 Longitudinal end portion 54 Longitudinal end portion 6 LED

Claims (1)

An LED substrate to which a plurality of LEDs are attached, a housing for holding the LED substrate and housing each component including the LED substrate, and a role provided around the LED to reflect light from the LED And a lens that transmits the light from the LED and the light reflected by the reflector in a predetermined direction. The structure for fixing the LED substrate is a part of the housing. A recess-shaped substrate holding portion formed to hold one end side of the LED substrate, and a second end side of the LED substrate provided on a part of the reflector. The board holding part is formed so as to hold down, and is formed so as to protrude upright from either the housing or the reflector. A hook-like engaging claw made of an elastic body and a part of the reflector vertical wall or a part of the housing, which is provided on either one side so as to engage with the engaging claw. And a reflector-housing coupling portion formed of an engagement hole or an engagement portion , and having such a configuration, the substrate pressing portion formed in a part of the reflector can be elastically deformed. When the reflector and the housing are coupled by the coupling action of the reflector / housing coupling portion, the LED substrate is pressed from the substrate pressing portion side to the housing side to the LED substrate side. A vehicular lamp device characterized in that a force formed by elastic deformation of a substrate pressing portion is applied .

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