JP5866235B2 - Vehicle lighting - Google Patents

Description

  The present invention relates to a vehicular lamp, and is particularly suitable for a vehicular lamp using a light emitting element such as an LED as a light source.

  Conventionally, as a vehicular lamp such as a rear combination lamp for an automobile, a light source using a light emitting element such as an LED (Light Emitting Diode) as a light source is known. This type of vehicle lamp has a structure in which an LED housed in the lamp chamber is electrically connected to the vehicle body via a coupler attached to the rear surface of the housing (see, for example, Patent Document 1). .

  In such a vehicular lamp, when connecting an LED and a coupler, for example, as shown in FIG. 4, first, as an extension unit 90, components in the lamp chamber including the LED 91 are unitized. Specifically, in a state where the metal substrate 92 to which the LED 91 is attached is disposed on the rear surface side of the extension 93, the metal substrate 92 is fixed to the front surface of the bracket 94 together with the extension 93, and then fastened and fixed to the rear surface of the bracket 94 with screws. The extension unit 90 is assembled by connecting the printed circuit board 95 and the LED 91 via the wiring cord 96.

  5 and 6, after inserting the coupler cable 98 extending from the coupler 97 into the through hole 99a of the housing 99 from behind, the grommet 98a through the coupler cable 98 is press-fitted into the through hole 99a. The connector 98b at the tip of the coupler cable 98 is connected to the connection terminal 95a of the printed circuit board 95. Thus, the LED 91 of the extension unit 90 and the coupler 97 are electrically connected. Thereafter, in a state where the extension unit 90 is temporarily fixed to the housing 99, the coupler cable 98 is wound around the cord clamp 99b on the rear surface of the housing 99 and restrained by the tie wrap 98c, and the coupler 97 is attached to the rear surface of the housing 99. Finally, the extension unit 90 and the housing 99 are fastened and fixed with screws.

JP 2011-34899 A

  However, in the above-described conventional vehicular lamp, when the extension unit 90 and the housing 99 are assembled, if there is play such as floating or slack in the coupler cable 98 in the lamp chamber, the coupler cable 98 is connected to the extension unit 90. There is a risk of being caught between the housing 99, and as a result, there is a problem of causing problems such as disconnection.

  In order to solve such a problem, for example, the coupler cable 98 is disposed (twisted) on the rear surface of the bracket 94 on the rear surface side of the extension unit 90 or in the vicinity of the cord clamp 99b on the rear surface of the housing 99. It is conceivable to provide a structure in which a storage groove is provided along the path and the coupler cable 98 is stored in the storage groove, thereby avoiding play such as floating or slack in the coupler cable 98.

  In this case, the size of the storage groove is approximately equal to the outer diameter of the coupler cable 98 for the purpose of preventing the coupler cable 98 stored in the storage groove from jumping out of the storage groove and for space reasons. It is desirable to set the size.

  However, in the structure having such a storage groove, when the coupler cable 98 is stored in the storage groove, the coupler cable 98 must be pushed in while being pressed, and the assembly work is complicated and the number of work steps increases. As a result, there is still an insufficient problem that the assembly workability is lowered.

  Therefore, the present invention has been made in view of the above-described problems, and an object of the present invention is to provide a vehicular lamp that can simplify the assembling work and can greatly improve the assembling workability as compared with the conventional art.

In order to solve the above-mentioned problem, the invention described in claim 1
In a vehicle lamp having a connection terminal to which a connector arranged on the vehicle body side is connected,
A printed circuit board electrically connected to the light emitting element;
A wiring cord for electrically connecting the printed circuit board and the connection terminal;
A holding member for holding the connection terminal;
While holding the printed circuit board, an extension to which the holding member is fixed,
With
In the vicinity of the portion where the holding member of the extension is fixed, a storage groove for storing the wiring cord is provided,
The holding member is provided with a lid for closing the storage groove,
The extension and the holding member are fixed so as to close the storage groove with the lid in a state where at least a part of the wiring cord is stored in the storage groove.

The invention according to claim 2 is the vehicle lamp according to claim 1,
The lid is provided to extend in the front-rear direction at the upper end of the holding member;
A wall portion extending in the front-rear direction corresponding to the lid portion is provided at a portion where the holding member of the extension is fixed, and the storage groove is opened upward in the wall portion. Provided,
The storage groove is closed from above by the lid in a state where at least a part of the wiring cord is stored.

The invention according to claim 3 is the vehicle lamp according to claim 1 or 2,
A metal member having a pin of the connection terminal;
A housing in which a through-hole penetrating in the front-rear direction is provided, and a socket portion of the connection terminal for supporting the connector is erected on the periphery of the through-hole on the rear surface side;
With
The wiring cord electrically connects the printed circuit board and the metal member,
The holding member holds the metal member and has an insertion hole through which the pin is inserted,
The holding member and the housing are fixed in a state where the pin inserted from the front through the insertion hole is inserted through the through hole and is erected rearward in the socket portion. And

The invention according to claim 4 is the vehicle lamp according to claim 3 ,
The metal member and the holding member are unitized.

The invention according to claim 5 is the vehicle lamp according to claim 3 ,
The printed circuit board, the metal member, the holding member, the wiring cord, and the extension are unitized.

  According to the present invention, when the holding member and the extension are fixed, a part of the wiring cord that electrically connects the connection terminal and the printed board (that is, disposed between the printed board and the connection terminal). In the state where the wiring cord is housed in the housing groove of the extension, the housing groove is fixed so as to be closed by the lid portion of the holding member. As a result, it is possible to prevent play such as floating and slack in the wiring cord disposed between the extension and the holding member.

  That is, in the present invention, the storage groove is closed with the lid of the holding member in a state in which the wiring cord is stored in the extension storage groove. ) Need not be set to the same size as the outer diameter. For this reason, it is possible to eliminate the need to push the wiring cord (corresponding to the coupler cable) into the storage groove while pressing the wiring cord as in the prior art. Thus, it is possible to provide a vehicular lamp that can simplify the assembling work and can greatly improve the assembling workability as compared with the prior art.

1 shows an embodiment of a vehicle lamp according to the present invention, and is a perspective view of a rear portion of the vehicle lamp as viewed obliquely from the rear. It is a disassembled perspective view which shows the principal part of the vehicle lamp of FIG. It is a disassembled perspective view which shows the extension unit in the vehicle lamp of FIG. It is a disassembled perspective view which shows the conventional extension unit. It is a disassembled perspective view which shows the principal part in the conventional vehicle lamp. It is a perspective view which shows the rear part of the conventional vehicle lamp seen from diagonally back.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of the rear part of the vehicular lamp 1 according to the present embodiment as viewed obliquely from the rear, and FIG. 2 is an exploded perspective view of the main part of the vehicular lamp 1.
In the following description, the descriptions “front”, “rear”, “left”, “right”, “upper”, and “lower” refer to directions seen from the vehicular lamp 1.

  As shown in FIGS. 1 and 2, the vehicular lamp 1 includes a housing 2 that opens forward (only the bottom of the housing 2 is shown in FIGS. 1 and 2). A connection terminal 10 to which a connector (not shown) disposed on the vehicle body side is connected is provided on the rear surface of the housing 2. More precisely, in the housing 2, among the components of the connection terminal 10, a through hole 21 that communicates between the inside and outside of the lamp chamber, a socket portion 22 for supporting a connector of the vehicle body at the periphery of the through hole 21, Only formed. The through hole 21 penetrates the bottom portion of the housing 2 in the front-rear direction, and the socket portion 22 stands on the periphery of the through hole 21 on the rear surface of the housing 2.

  An extension unit (hereinafter referred to as an Ext unit) 3 is accommodated in the lamp chamber covered with the housing 2. As will be described later, the housing 2 and the Ext unit 3 are configured such that the pins 61,... It is fixed in a standing state. The housing 2 and the Ext unit 3 are fixed by fastening the three screws 11,... To the screw holes 55, 55 and the protrusion 71 described later while inserting the three screws 11,. .

FIG. 3 is an exploded perspective view of the Ext unit 3.
As shown in this figure, the Ext unit 3 has a printed board 4, a bracket 5, three metal boards 6,..., An extension 7, and a wiring cord 8.
Among these, the printed circuit board 4 has a plurality of (in this case, three) LEDs 9... Mounted on the surface thereof. In addition, a terminal 41 electrically connected to the LEDs 9, which are light emitting elements, is provided on the back surface of the printed circuit board 4.

  The bracket 5 is formed in a substantially L shape, and an annular raised portion 51 that fits with the through hole 21 of the housing 2 is formed on the rear surface thereof. Inside the raised portion 51, three insertion holes 52,... Further, the bracket 5 is formed with three connection holes 53, which are elongated in the vertical direction, two attachment holes 54, 54, and two screw holes 55, 55. Further, a lid portion 57 extending in the front-rear direction is provided at an upper side end portion of the bracket 5 having a substantially L shape. The lid portion 57 is for closing a storage groove 73 of the extension 7 described later from above.

  The metal substrates 6,... Are metal substrate members each having a pin 61 erected rearward and a connecting portion 62 erected rearward along the vertical direction. More specifically, the connecting portion 62 is formed in a substantially L shape, and the tip thereof faces upward or downward. The metal substrates 6,... Are fastened and fixed to the front surface of the bracket 5 with fixing screws 63,... With the respective pins 61 and connection portions 62 inserted through the insertion holes 52 and the connection holes 53 of the bracket 5 from the front. Is held by the bracket 5.

  The extension 7 has a fixing portion (not shown) to which the printed board 4 is fixed, and two protrusions 71 and 71 fitted into the two mounting holes 54 and 54 of the bracket 5. 4 and the bracket 5 are held. Of the two protrusions 71, 71, one (upper) protrusion 71 is locked in one mounting hole 54 of the bracket 5, while the other (lower) protrusion 71 is It has a screw hole to which the screw 11 is fastened, and is inserted into the other mounting hole 54 of the bracket 5 and the mounting hole 23 of the housing 2 and fastened to the screw 11. They are tightened together (see FIG. 2). Further, a wall portion 72 extending in the front-rear direction corresponding to the lid portion 57 of the bracket 5 is provided at a portion where the bracket 5 corresponding to the bracket 5 of the extension 7 is fixed. Further, the wall 72 is provided with a storage groove 73 having a U-shaped cross section that opens upward for storing the wiring cord 8.

  The wiring cord 8 is a cord bundle in which three cords are bundled, and a connector 81 connected to the terminal 41 of the printed circuit board 4 is attached to one end side thereof. In addition, three cords are divided on the other end side of the wiring cord 8, and a connecting rod 82 connected to the connecting portion 62 of the metal substrate 6 is attached to the tip of each cord. In this wiring cord 8, the connector 81 on one end side is connected to the terminal 41 of the printed circuit board 4, and the three connecting rods 82 on the other end side are connected to the connecting portion 62 on the three metal substrates 6. Then, the printed circuit board 4 and the metal substrates 6 are electrically connected, and as a result, the LEDs 9 are electrically connected to the pins 61.

  Then, the assembly method of the vehicle lamp 1 is demonstrated.

  First, three metal substrates 6,... Are attached to the bracket 5 so that the respective pins 61 and connection portions 62 are inserted through the insertion holes 52 and the connection holes 53 of the bracket 5 from the front, and the fixing screws 63,. Fastened to the front surface of the bracket 5. Thus, the three metal substrates 6,... And the bracket 5 are unitized as the bracket Assy.

  Next, the bracket assembly and the printed board 4 are fixed to the extension 7. Specifically, the printed circuit board 4 is fixed to a fixing portion (not shown) of the extension 7, and the two protrusions 71 and 71 of the extension 7 are fitted into the two attachment holes 54 and 54 of the bracket 5 from the front.

Here, the printed circuit board 4 fixed to the extension 7 and the metal substrates 6 are electrically connected in advance by the wiring cord 8. Specifically, the connector 81 on one end side of the wiring cord 8 is connected to the terminal 41 of the printed board 4. At this time, a part of the wiring cord 8 (that is, the wiring cord 8 disposed between the printed board 4 and the metal board 6,...) Is stored in the storage groove 73 formed in the wall portion 72 of the extension 7. To the state. At the same time, the three connecting rods 82,... On the other end side of the wiring cord 8 are connected to the connecting portions 62 of the three metal substrates 6,. The wiring cord 8 is wound around a cord clamp (not shown) provided on the front side of the bracket 5 so that there is no play (sag). As for the order, it is desirable to wire the other end side of the wiring cord 8 first and then wire the one end side of the wiring cord 8 via the storage groove 73. Next, in this state (that is, a state in which a part of the wiring cord 8 is stored in the storage groove 73 of the extension 7), the bracket Assy (bracket 5) is fixed to the extension 7 as described above. At this time, the wall portion 72 of the extension 7 and the lid portion 57 of the bracket 5 come into contact with each other, whereby the upper opening of the storage groove 73 formed in the wall portion 72 is closed from above by the lid portion 57.
In this way, the printed circuit board 4, the metal board 6,..., The bracket 5, the wiring cord 8 and the extension 7 are unitized as the Ext unit 3.

  Next, as shown in FIGS. 1 and 2, the Ext unit 3 is fixed to the housing 2. Specifically, the Ext unit 3 is attached to the housing 2 such that the raised portion 51 on the rear surface of the bracket 5 is fitted into the through hole 21 of the housing 2 from the front. Then, the pins 61,... Inserted from the front into the insertion holes 52,... Of the bracket 5 are inserted into the through holes 21 and are erected rearward in the socket portion 22. In this way, the connection terminal 10 is formed in which the pins 61,... Electrically connected to the LEDs 9,. Then, the three screws 11,... Are inserted into the mounting holes 23,... Of the housing 2, and are fastened to the screw holes 55, 55 of the bracket 5 and the projecting portion 71 of the extension 7. And fix.

  As described above, according to the vehicular lamp 1, when the bracket 5 and the extension 7 are fixed, a part of the wiring cord 8 that electrically connects the connection terminal 10 and the printed board 4 (that is, the printed board). 4 and the connecting terminal 10 are housed in the housing groove 73 of the extension 7, and the housing groove 73 is fixed so as to be closed by the lid portion 57 of the bracket 5. Thereby, it is possible to prevent play such as floating and slack in the wiring cord 8 disposed between the printed circuit board 4 (extension 7) and the connection terminal 10 (bracket 5).

  That is, in the vehicular lamp 1 of the present embodiment, the storage groove 73 is closed by the lid portion 57 of the bracket 5 in a state where the wiring cord 8 is stored in the storage groove 73 of the extension 7. It is not necessary to set the size of the storage groove 73 to the same size as the outer diameter of the wiring cord 8 (corresponding to a coupler cable).

  For this reason, it is not necessary to push the wiring cord 8 (coupler cable) into the housing groove 73 while pressing the wiring cord 8 as in the prior art. Thus, it is possible to realize the vehicular lamp 1 that can simplify the assembling work and can greatly improve the assembling workability as compared with the prior art.

  At this time, the lid portion 57 is provided so as to extend in the front-rear direction at the upper end portion of the bracket 5, and extends in the front-rear direction corresponding to the lid portion 57 at a portion where the bracket 5 of the extension 7 is fixed. An existing wall portion 72 is provided, and a storage groove 73 is provided in the wall portion 72 so as to open upward. The storage groove 73 is preferably closed from above by the lid portion 57 in a state where at least a part of the wiring cord 8 is stored.

Further, according to the vehicle lamp 1, the connection terminal 10 in which the pins 61,... Electrically connected to the LEDs 9,. it can.
Here, when fixing the bracket 5 and the extension 7 (forming the Ext unit 3), one of the wiring cords 8 for electrically connecting the printed circuit board 4 fixed to the extension 7 and the metal substrates 6,. In a state where the portion is stored in the storage groove 73 of the extension 7, the storage groove 73 (specifically, the upper opening) can be fixed so as to be closed by the lid portion 57 of the bracket 5.
Therefore, when fixing the bracket 5 (Ext unit 3) and the housing 2, it is only necessary to pay attention to inserting the pins 61,... Into the through hole 21, and a coupler corresponding to the connection terminal 10 is provided on the rear surface of the housing. Unlike the conventional case, in order to eliminate the play of the coupler cable in the lamp chamber (inside the housing), it is not necessary to fix the components in the lamp chamber and the housing while pulling the coupler cable from the outside of the lamp chamber. Therefore, as compared with the conventional case, the assembling work can be performed easily.

  In addition, since the connection terminal 10 is formed on the rear surface of the housing 2 in a state of opening rearward, unlike the conventional case where the connection terminal of the coupler is opened sideways, The connector can be easily inserted from the rear. Therefore, the connection with the vehicle main body can be easily performed as compared with the conventional case.

  Also, unlike the conventional case where the coupler corresponding to the connection terminal 10 is attached to the rear surface of the housing, it is not necessary to twist the coupler cable around the rear surface of the housing 2, so that a tie wrap or the like for suppressing the coupler cable is not required, and the number of parts is reduced. be able to.

  Further, the components in the lamp chamber (printed circuit board 4, metal circuit board 6,..., Bracket 5, wiring cord 8 and extension 7) related to the LEDs 9,. Can be done.

  The embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the case where the LED 9 is used as the light emitting element has been described. However, the present invention is not limited to this, and various other light emitting elements such as an organic EL can be widely applied.

  In the above-described embodiment, the case where the LEDs 9 are mounted on the printed board 4 has been described. However, the present invention is not limited to this, that is, the LEDs 9 are electrically connected to the printed board 4. In addition, for example, it may be connected by a cord.

DESCRIPTION OF SYMBOLS 1 Vehicle lamp 2 Housing 21 Through-hole 22 Socket part 3 Extension unit (Ext unit)
4 Printed circuit board 41 Terminal 5 Bracket (holding member)
51 Raised part 52 Insertion hole 53 Connection hole 57 Lid part 6 Metal substrate (metal member)
61 Pin 62 Connection portion 7 Extension 72 Wall portion 73 Storage groove 8 Wiring cord 81 Connector 82 Connection rod 9 LED (light emitting element)
10 Connection terminal

Claims (5)

In a vehicle lamp having a connection terminal to which a connector arranged on the vehicle body side is connected,
A printed circuit board electrically connected to the light emitting element;
A wiring cord for electrically connecting the printed circuit board and the connection terminal;
A holding member for holding the connection terminal;
An extension for holding the printed circuit board and to which the holding member is fixed,
In the vicinity of the portion where the holding member of the extension is fixed, a storage groove for storing the wiring cord is provided,
The holding member is provided with a lid for closing the storage groove,
The vehicle lamp, wherein the extension and the holding member are fixed so that the storage groove is closed by the lid in a state where at least a part of the wiring cord is stored in the storage groove. . The lid is provided to extend in the front-rear direction at the upper end of the holding member;
A wall portion extending in the front-rear direction corresponding to the lid portion is provided at a portion where the holding member of the extension is fixed, and the storage groove is opened upward in the wall portion. Provided,
The vehicular lamp according to claim 1, wherein the storage groove is closed from above by the lid portion in a state in which at least a part of the wiring cord is stored. A metal member having a pin of the connection terminal;
A housing in which a through-hole penetrating in the front-rear direction is provided, and a socket portion of the connection terminal for supporting the connector is erected on the periphery of the through-hole on the rear surface side;
With
The wiring cord electrically connects the printed circuit board and the metal member,
The holding member holds the metal member and has an insertion hole through which the pin is inserted,
The holding member and the housing are fixed in a state where the pin inserted from the front through the insertion hole is inserted through the through hole and is erected rearward in the socket portion. The vehicular lamp according to claim 1 or 2. The vehicular lamp according to claim 3 , wherein the metal member and the holding member are unitized. The vehicular lamp according to claim 3 , wherein the printed board, the metal member, the holding member, the wiring cord, and the extension are unitized.

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