JP4406256B2 - LED lamp module and lamp module assembly - Google Patents

Description

  The present invention relates to a lamp module assembly in which an LED lamp module using LEDs and one or more LED lamp modules are connected to an electric wire.

  2. Description of the Related Art Conventionally, it has been proposed to configure a lamp module by using light emitters such as lamps (bulbs) and LEDs one by one in internal lighting of automobiles.

  In this case, for example, in order to arrange a plurality of light emitters in parallel for the purpose of increasing illuminance, a plurality of junction connectors 42 are connected in series in the middle of the wire harness (main line) 41 as shown in FIG. The branch harness 43 is branchedly connected from each junction connector 42, and each lamp module 44 is connected to each branch harness 43 by a connector 45 to constitute the lamp module assembly 50.

  Each lamp module 44 includes a synthetic resin case 46, a light emitting body 47 disposed in the case, and a lead terminal 48 connected to the light emitting body 47, and each lead terminal 48 is provided in the connector 45. The branch harness 43 and the light emitting body 47 are connected to each other by being connected to a female terminal (not shown). When the lead terminal 48 is a female terminal, it is connected to a male terminal in the connector 45.

  When an LED (light emitting diode) is used as the light emitter 47, a resistor 49 is provided in the lamp module 44 in order to reduce the voltage from the harness main line 41 to the LED 47. The resistor 49 is connected between the positive lead terminal 48 and the light emitter 47. FIG. 14 shows a circuit configuration of the resistor 49 and the light emitter (LED) 47 in the lamp module 44.

  As an example, the rated voltage of the LED is about 3.5V with respect to the in-vehicle power supply 12V, and the voltage must be reduced from 12V to 3.5V using a resistor. In addition to the resistor 49, a semiconductor element such as a diode is often built in to protect the LED 47 from static electricity.

  As a technique other than the above, for example, Patent Document 1 proposes a structure in which a plurality of chip-type LEDs as light emitters are arranged in parallel in one lamp module.

  Since the LED consumes less power and has a small structure, it is always possible to make the lighting and the lamp module compact.

  However, it is preferable to appropriately set the number of light emitters according to the place where the lamp module is used, the required illuminance, and the like. In that case, the lamp module having a plurality of light emitters described in Patent Document 1 is inappropriate.

  However, in order to arrange an appropriate number of lamp modules provided with one light emitter shown in FIG. 13 in parallel, many components such as the junction connector 42, the branch harness 43, and the connector 45 are required. However, it has become complicated, large and expensive, and has a problem that many man-hours are required for assembly and connection.

As a structure in which a plurality of LEDs are connected and arranged in series, Patent Document 2 discloses that an LED chip is built in a bulb-shaped sealing resin, and the LED chip is connected to two lead portions with a thin bonding wire. A structure in which a plurality of LEDs are connected in series to the same electric wire by press-contacting a press contact terminal integrally connected to the lead portion to the electric wire in a lamp holder made of synthetic resin has been proposed.
Japanese Patent Laid-Open No. 9-272377 (pages 3 to 4, FIGS. 1 and 5) JP-A-11-121807 (pages 4-5, FIGS. 1-3)

  However, in the LED lamp module described in Patent Document 2, since the LED chip must be connected to each lead terminal with a thin bonding wire, careful attention must be paid to the connection, which is often involved in assembly work. There were concerns that it would require man-hours and strict quality control. In addition, since the press contact terminals are inserted into the holder and pressed against the electric wires in the holder, there is a concern that the assembly work efficiency is poor when the respective wires are press contacted to a large number of press contact terminals.

  Further, when the electric resistance 49 is provided in the case of each LED lamp module 44 as in the lamp module assembly 50 of FIG. 13, the LED lamp module 44 is enlarged and the number of parts of the resistance 49 is increased. As a result, the cost of the components increases, and the lamp module assembly 50 increases in size, which requires a large space for mounting on a vehicle or the like, and increases the product cost.

  In view of the above-mentioned points, the present invention can easily set the number of light emitters to an appropriate number as needed, and can be easily and efficiently assembled with less man-hours, or It is also an object of the present invention to provide an LED lamp module and a lamp module assembly that can prevent an increase in the structure and cost associated with the arrangement of resistors, and that are generally low in cost and highly practical. And

In order to achieve the above object, an LED lamp module according to claim 1 of the present invention is in contact with an upper surface of the base, an insulating case comprising a flat base and a cover covering the upper surface side of the base. Te upstream of the circuit conductor disposed horizontally and the bus bars on the downstream side, and the chip-type LED arranged connected in contact with the upper surface of each of the bus bars between the respective bus bars in one end of each of the bus bars , characterized in that it comprises a respective insulation displacement terminal as the wire connecting portion erected integrally from the respective bus bar at the other end of each of the bus bars.

With the above structure, the LED of circuit conductor and wire connecting portion, a chip-type base side can be efficiently reliably surface-mounted by an automatic machine or the like from above. It is also possible to attach the LED to the circuit conductor in advance . By mounting the cover to the base over scan, LED or irradiated from outside, for example, the window portion of the case or the like, or an LED illuminates the external exposed directly to the outside. The upstream portion of the circuit conductor is connected to the upstream wire, and the downstream portion of the circuit conductor is connected to the downstream wire. The electric wire is efficiently and reliably connected from above to the electric wire connecting portion that follows the circuit conductor with the cover opened. The electric wire is connected to an electric wire connecting portion in the case, and is led out from both sides of the case, for example, and traverses the case. The connecting portion between the electric wire and the electric wire connecting portion is safely protected from external interference in the case by closing the cover.

Moreover, it can be surface-mounted from above the bus bar to the base of the case so efficiently and reliably. Chip type LE D are connected by surface mounting on the bus bar. It is also possible to attach an LED to the bus bar in advance. Even if the bus bar is thin, the bus bar can correspond to a high-illuminance LED with a relatively high current. Instead of surface mounting, it is also possible to attach the bus bar to the base by assembly by an operator.

Lamp module assembly according to claim 2, LED lamp module as claimed in claim 1, wherein is a plurality arranged, electric wires wherein each pressure contact terminal of each LED lamp module is characterized in that it is formed by connecting in series.

  With the above configuration, the required illuminance can be obtained by increasing or decreasing the number of lamp modules according to the specifications such as illuminance. The same lamp module can be connected in series to the same electric wire to increase the number of lamp modules easily and compactly.

The lamp module assembly according to claim 3 is the lamp module assembly according to claim 2 , wherein the electric wire follows the junction box or the junction connector, and the junction box or the junction connector has a voltage reduction with respect to the plurality of LED lamp modules. It is characterized in that a part for use is provided.

  With the above configuration, a plurality of lamp modules are connected in series to the electric wires following the junction box or the junction connector. For example, the junction box is connected to the power supply side, and the junction connector is connected to the junction box. For example, one resistor is provided in the junction box or the junction connector, and the LEDs in each LED lamp module are collectively reduced in voltage from the power supply voltage by the resistor, so that a resistance for voltage reduction is provided in each LED lamp module. It becomes unnecessary, and the LED lamp module is made compact and low in cost. In addition to the resistor, a three-terminal regulator, a DC / DC converter, or the like can be used as a voltage reducing component.

The lamp module assembly according to claim 4 is the lamp module assembly according to claim 2 , wherein the electric wire is connected to a junction box or a junction connector or other circuit via a connector, and the connector includes a plurality of the LED lamps. A voltage reduction component for the module is provided.

  With the above configuration, the plurality of lamp modules are connected in series to the electric wires following the junction box or the junction connector or other circuits. For example, a single resistor is provided on the connector, and the LEDs in each LED lamp module are collectively reduced from the power supply voltage by that resistor, so that no resistance for voltage reduction is required in each LED lamp module. The lamp module is reduced in size and cost. In addition to the resistor, a three-terminal regulator, a DC / DC converter, or the like can be used as a voltage reducing component.

The lamp module assembly according to claim 5 is the lamp module assembly according to claim 4 , wherein the connector includes a base and a cover, the bus bar including connector terminals is connected to the base, and the bus bar is connected to the bus bar. And a voltage reducing component, and the electric wire is connected to the bus bar.

  With the above configuration, the bus bar and voltage reduction parts such as resistors can be easily attached to the connector base with the cover open, and the bus bar and resistance are insulated and protected by closing the cover, thereby forming the connector. The A power supply circuit is connected to the connector terminal by a connector, and the power supply voltage is reduced by resistance and supplied to the LED lamp connecting wire via the bus bar.

Lamp module assembly according to claim 6 in the lamp module assembly of claim 5, wherein, that the bus bar having a connector terminal of the positive electrode is connected to said wire parts and the power supply for the voltage reduction Features.

  With the above configuration, power is supplied to bulb lamps and the like other than LED lamps by the power supply wires. This diversifies lamp module specifications.

  As described above, according to the first aspect of the present invention, it is possible to easily and efficiently mount and connect a circuit conductor, LED, electric wire, or the like on the base side with the cover opened, for example, by surface mounting. Thereby, the assemblability of the LED lamp module is improved, the cost is reduced, and the quality is improved.

Also, surface mounting and the circuit conductor of the base over the scan side, a surface mount chip-type LED onto the circuit conductors can be reliably performed well且one efficiency to easily, assembly of the LED lamp module improves.

According to the second aspect of the present invention, the number of lamp modules can be easily increased with one lamp module as a unit, and it is possible to easily cope with specifications such as illuminance.

According to the third aspect of the present invention, for example, a resistor is provided in the junction box or the junction connector, and the LEDs in each LED lamp module are collectively reduced from the power supply voltage by the resistor, whereby the LED lamp module Cost reduction is achieved by simplification, compactness, and reduction in the number of resistors, and a compact lamp module assembly can be easily arranged in a narrow space such as a vehicle.

According to the fourth aspect of the present invention, for example, a resistor is provided in the connector, and the LED in each LED lamp module is collectively reduced from the power supply voltage by the resistor, thereby simplifying and compacting the LED lamp module. The cost can be reduced by reducing the number of resistors and the number of resistors, and a compact lamp module assembly can be easily arranged in a narrow space such as a vehicle.

According to the invention described in claim 5 , the connector can be assembled easily and efficiently, and the cost of the lamp module assembly can be reduced. Further, by mounting the bus bar and the resistor directly on the base without using the circuit board, the connector can be made compact and the cost can be reduced.

According to the sixth aspect of the present invention, for example, a low voltage LED lamp and a power supply voltage bulb lamp can be mounted together, and the lamp module specifications are diversified.

  FIG. 1 shows an embodiment of a lamp module assembly according to the present invention.

  In this lamp module assembly 1, a plurality of LED lamp modules 3 are connected in series to a single flat cable 2 and arranged in parallel in the longitudinal direction of the harness.

  One junction box 4 or one junction connector 4 is arranged and connected to the base of the flat cable 2. For example, the junction box 4 is connected to a battery (power source) via a harness (not shown), and the junction connector 4 is connected to a junction box (not shown) via a harness (not shown).

  The junction box 4 is an existing electrical junction box, for example, having a circuit board and a wiring board (not shown) in a case made of synthetic resin, and having a connector, a fuse mounting portion, and a relay mounting portion in the case. For example, it is arranged around the engine room of an automobile or the instrument panel. The junction connector 4 is for branching the branch harness from the wire harness main line as shown in the conventional example. In the embodiment of FIG. 1, for example, the flat cable 2 corresponds to the branch harness. The junction connector is arranged on the downstream side of the junction block, for example, on the front pillar of the automobile or in the vicinity thereof.

  The flat cable 2 is formed by connecting one insulation-coated electric wire 2a on the + side and one insulation-coated electric wire 2b on the-side (ground side) in parallel by an intermediate flat insulation band 2c. The covered electric wires 2a and 2b can be separated from the flat insulating band 2c at a desired position.

  Each LED lamp module 3 includes a case 7 made of an insulating synthetic resin, a single chip-type LED (light emitting diode) 8 disposed in the case, and a conductive metal connected to the LED 8 with solder or the like. Bus bar (circuit conductor) 9, and, following the bus bar 9, press contact terminals (wire connection portions) 10 and 11 that are press-connected to the respective insulation-coated wires 2 a and 2 b. Note that a bullet-type LED may be used instead of the chip-type LED.

  In this example, a chip-type resistor (electric resistor) 12 is connected as a voltage reducing component in the middle of the upstream bus bar portion 9a connected to the + -side electric wire 2a. In addition, it is preferable that one resistor 12 is integrated in the junction block 4 or the junction connector 4 without being provided in each LED lamp module 3. As a result, the number of resistors 12 is reduced, the parts cost and the number of connecting steps are reduced, and the downsizing of the LED lamp module 3 is promoted.

  Further, an LED protection diode (not shown) may be disposed on the bus bar 9, or one LED protection diode may be integrated in the junction block or junction connector. . As a diode for protecting the LED, it is also possible to connect a Zener diode across a +/− pole bus bar at a position in front of the LED.

  The case 7 includes a base 5 and a cover 6. The base 5 and the cover 6 are locked to each other by locking means 13, and a window 14 for irradiating the light of the LED 8 is provided on the cover 6. An LED 8, a bus bar 9, and a resistor 12 are provided. The window 14 is preferably formed in a tapered shape according to the irradiation angle of the LED 8. In this example, the LED 8 is disposed upward and has an upward light emitting surface, and a window 14 is provided on the upper wall (top wall) 15 of the cover 6. The press contact terminals 10 and 11 are provided integrally with the bus bar 9. For example, the press contact terminals 10 and 11 are formed by stamping at the end of the bus bar 9, and the press contact terminals 10 and 11 are bent vertically from the base portion and vertically raised.

  The two positive and negative electric wires 2a and 2b of the flat cable 2 are separated in the radial direction at the longitudinal intermediate portion, and the positive electric wire 2a is pressed against the press contact terminal 10 of the bus bar portion 9a following the + electrode of the LED 8, The minus side (ground side) electric wire 2b is brought into pressure contact with the pressure contact terminal 11 of the downstream bus bar portion 9b following the minus electrode of the LED 8. The pressure welding of the electric wires 2a and 2b is performed with the cover 6 opened. The bus bar 9, the LED 8, and the resistor 12 are mounted on the base 5 in advance. Surface mounting is particularly effective as the mounting format.

  The flat cable 2 extends linearly in the transverse direction of the case 7 and connects the LED lamp modules 3 in parallel at positions relatively close to each other. The arrangement interval (pitch) of the LED lamp modules 3 may be the same, or may be appropriately changed according to specifications such as an illumination location and an illumination object. Each LED lamp module 3 may be made closer or further apart than in FIG. The number of the LED lamp modules 3 is appropriately changed according to the design illuminance or the like, and may be one or plural.

  The lamp module assembly 1 configured as described above is disposed, for example, on the ceiling of a car, a console box, a glove box, an ashtray, a cup holder, or a foot of a passenger compartment. In the case of the ceiling, it can be applied as a map lamp, a room light, or a rear reading. It can also be applied to turn signal lamps, stop lamps, back lamps, license plate lamps and the like of automobiles. These application locations are the same in the embodiments described later.

  FIG. 2 shows a detailed embodiment of the LED lamp module, which is different from the above example.

  The LED lamp module 3 'includes a case 20 made of a synthetic resin base 18 and a cover 19, an LED 21 mounted on the base, a bus bar (circuit conductor) 22 with a pressure contact terminal, and a resistor (voltage reducing component). ) 23, and the two insulated coated electric wires 2 a and 2 b of the flat cable 2 are inserted between the electric wire guides 26 protruding from the base 19, and the front and rear (electrical wire longitudinal direction) electric wire guides 26. Are pressed against the pressure contact terminals (wire connection portions) 24 and 25. Surface mounting is particularly effective as the mounting format.

  The press contact terminals 24 and 25 are constituted by a pair of front and rear vertical press contact pieces 27 and a horizontal base plate portion 28 that connects the front and rear press contact pieces 27. The board portion 28 has a slot 29 and continues to the bus bar 22 integrally. The two electric wires 2a and 2b are independently connected to two press contact terminals 24 and 25 spaced apart in the front-rear direction. The electric wires 2a and 2b are connected to the press contact terminals 24 and 25 by pressing from above with a press contact blade or the like (not shown). The LED lamp module 3 ′ is miniaturized in the electric wire radial direction by disposing the press contact terminals 24 and 25 in the electric wire longitudinal direction.

  Each pair of press contact pieces 27 of each press contact terminal 24, 25 is in contact with the end face of the wire guide 26 at the outer side in the thickness direction, that is, at the front and back positions, and is prevented from falling. The electric wire guide 26 is composed of a pair or three vertical rising pieces (substitute with reference numeral 26), and regulates the lead-out direction and position of the 2a and 2b electric wires. The two electric wires 2a and 2b are simultaneously positioned by three rising pieces, and the central rising piece is shared.

  The bus bar 22 is formed in a substantially rectangular frame shape, and includes three wide portions 22a to 22c in the direction perpendicular to the electric wire and a narrow portion 22d that connects the wide portions 22a to 22c in the transverse direction, The wide portion 22a on one side continuing through the front pressure contact terminal 24 is connected to the central wide portion 22b via a resistor 23, and each electrode (terminal) of the LED 21 is connected to the central wide portion 22b and the wide portion 22c on the other side. Part) 21a is connected by means such as soldering or caulking, and the wide part 22c on the other side is connected to the negative electrode 2b via the press contact terminal 25 on the rear side.

  The narrow portion 22d also acts as a resistor. Each narrow portion 22d can be cut off after connecting a resistor or the like. In this case, the narrow portion 22d secures the entire shape of the bus bar 22 and efficiently connects resistors and the like.

  The wide portions 22 a to 22 c and the board portions 28 of the press contact terminals 24 and 25 have downward locking pieces 30, and the locking pieces 30 enter the recessed portions 31 of the base 18 and are locked. The assembly of the bus bar 22 to the base 18 is performed with a single touch from above. Separation of the bus bar 22 at the time of disposal is facilitated by releasing the lock.

  The base 18 is formed in a horizontal plate shape, and the upper surface of the base is a component mounting surface 32. The cover 19 is rotatably connected to the base 18 by a hinge (not shown), and the locking claw 33 erected on the base 18 is engaged with the concave portion 34 of the cover 19, thereby locking the both 18 and 19. . The LED 21 of this example is disposed at the end of the base 18 opposite the hinge, has a light emitting surface that faces sideways (horizontally), and has a rectangular shape that has a sideways window 35 at the corresponding end of the cover 19. LED housing part 36 is provided, and light is irradiated in the horizontal direction.

  The LED lamp module 3 'is composed of a single bus bar 22, a small chip-type LED 21, a thin resistor 23, and press contact terminals 24 and 25, and the structure is extremely thin, light and compact. A plurality of LED lamp modules 3 ′ are connected in series in the longitudinal direction of the flat cable 2 according to use of illuminance, arrangement, and the like.

  In each of the above embodiments (described in the example of FIG. 2), the wires 2a and 2b can be easily and efficiently connected by press-contacting the press-contact terminals 24 and 25 of the bus bar 22, It is also possible to connect the electric wire and the bus bar by other means such as crimping, welding, or soldering without depending on the pressure contact. However, in the case of crimping or soldering, it is necessary to strip the middle of the wire, and in the case of welding, a large-scale device is required. In the case of crimping, a pressure contact terminal is used instead of the pressure contact terminal, and in the case of welding, a part of the bus bar is used as a terminal.

  It is also possible to arrange the two press contact terminals 24 and 25 in parallel in the electric wire radial direction and press contact with the two electric wires 2a and 2b being largely separated in the electric wire radial direction. However, in this case, the case 20 tends to be enlarged in the width direction of the electric wire.

  Further, the base 18 and the cover 19 can be separated from each other without being integrated by a hinge. The base 18 and the cover 19 can be locked in various forms such as a locking projection and a recess in addition to the locking claw 33 and the recess 34. Further, the position of the LED 21 may be the end of the base 18 on the hinge side. In that case, the flat cable 2 and the press contact terminals 24 and 25 are arranged on the opposite side of the hinge.

  Further, the position of the LED 21 may be the end portion of the case 20 in the longitudinal direction of the electric wire. In this case, the flat cable 2 is bent in, for example, a U shape, and the two LED lamp modules 3 ′ and 3 ′ are arranged in parallel in the left and right directions. Arrange vertically. It is also possible to provide two or more LEDs 21 in the case. However, in this case, the illuminance of one LED lamp module 3 ′ increases, and the illuminance specification below it cannot be supported.

  Further, the bus bar 22 may have a U-shape instead of a rectangular shape (the form shown in FIG. 1) or other shapes. It is also possible to replace the bus bar 22 with other conductive means such as a printed conductor, copper foil or electric wire. It is also possible to form the bus bar 22 and the press contact terminals 24, 25 separately from each other, or to make the press contact pieces 27 of the press contact terminals as a simple pair of left and right instead of a pair of front and rear. It is also possible to fix the bus bar 22 to the base 18 by insert molding or resin welding. Further, the shape of the base 18 and the case 19, the shape of the bus bar 22, and the like are not limited to the above embodiment.

  FIG. 3 to FIG. 9 show examples in which electric resistance is provided not in the lamp module but in a junction block, a connector, or a junction connector as other embodiments of the lamp module assembly according to the present invention.

  In the lamp module assembly 37 of FIG. 3, a resistor (voltage reduction component) 39 is provided in the junction block 38, and the resistor 39 is connected to a + electrode circuit 40 following the in-vehicle 12 V power source. Another + electrode circuit 51 following the 12V power source is provided in parallel, and a negative electrode ground circuit 52 is provided in parallel therewith. The three circuits 40, 51, 52 are connected to the relay harness 55 via male / female connectors (the connector 53 of the junction block 38 and one connector 54 of the relay harness 55), and the other connector 56 of the relay harness 55. Is connected to the connector 58 of the lamp module assembly main part 57.

  The lamp module assembly main portion 57, the relay harness 55, and the junction block 38 constitute a lamp module assembly 37. Alternatively, if the lamp module assembly main part 57 is referred to as a lamp module assembly, the form of FIG. 3 is collectively referred to as a lamp module assembly connection structure.

  The lamp module assembly main part 57 includes a connector 58 connected to the relay harness 55, three electric wires (circuits) 59 to 61 following each terminal in the connector 58, one bulb lamp module 62, and a plurality of lamp modules 62 An LED lamp module 63 is included.

  One terminal of the bulb lamp module 62 is connected to a + side circuit 59 not connected to the resistor 39, and the other terminal of the bulb lamp module 62 is connected to the ground circuit 61. Also, one terminal 66 of each LED lamp module 63 is connected to a + side circuit 60 following the resistor 39, and the other terminal 67 of each LED lamp module 63 is connected to the earth circuit 61. The earth circuit 61 is commonly used by the bulb lamp module 62 and each LED lamp module 63.

  According to the lamp module assembly 37 of FIG. 3, the resistor 39 is provided not in each LED lamp module 63 but in common in the junction block 38 on the base (former) side. Cost reduction by reducing the number of 39 is achieved.

  The relay harness 55 may be omitted, and the circuits 59 to 61 of the lamp module assembly main part 57 may be directly connected to the junction block 38 by connectors, or the circuits 59 to 61 of the lamp module assembly main part 57 may be connected. 61 may be led out from the inside of the junction block 38 instead of the connector connection.

  The lamp module assembly 68 shown in FIG. 4 includes a junction block 69, a relay harness 70 connected to the junction block 69, and a main part 71 of the lamp module assembly connected to the relay harness 70, and the junction block 69 and the relay harness. An electrical resistance (voltage reduction component) 76 is provided in any of the connectors 72 and 73 for connecting to the connector 70 or the connectors 74 and 75 for connecting the relay harness 70 and the lamp module assembly main part 71 to each other. It is what. FIG. 4 shows an example in which a resistor 76 is provided on the connector 74 of the relay harness 70 as an example.

  The junction block 69 has a + side circuit 77 and a ground side circuit 78 following the in-vehicle power source, and both circuits 77 and 78 are connected to one connector 73 of the relay harness 70 by a connector 72. In the other connector 74 of the relay harness 70, two positive pole terminals 79 and 80 and one negative pole terminal 81 are arranged, and the two positive pole terminals 79 and 80 are arranged on one positive side. Commonly connected to the circuit 77, the negative terminal 81 is connected to the ground circuit 78, and a resistor 76 is connected to one positive terminal 79 in the connector 74. The connector 74 includes at least a synthetic resin connector housing, terminals 79 to 81, and a resistor 76.

  As shown in FIG. 5 as an example of the connector 74, the positive pole terminals 79 and 80 are formed integrally with the bus bar 83, and a chip resistor 76 and an antistatic diode 82 are connected in series in the middle of the bus bar (surface A diode 82 followed by a terminal 79. For example, the minus pole bus bar 84 is stamped and bent from a conductive metal plate integrally with the plus pole bus bar 83, and is separated from the plus pole bus bar 83 after the resistor 76 and the like are mounted. The bus bars 83 and 84, the resistor 76, and the like can be fixed to the connector housing 85 by resin molding. An electric wire 86 is connected to each bus bar 83, 84 by means such as pressure welding, pressure bonding or welding. The circuit form in the connector 74 is not limited to the example of FIG. In FIG. 4, the resistor 76 and the diode 82 are not limited to the connector 74 and can be disposed in any other connectors 72 to 75.

  In the example of FIG. 4, the lamp module assembly main part 71 is connected to the relay harness 70 by a connector, so that the voltage reduced by the resistor 76 in the connector 74 is applied to each LED lamp module 63.

  The main part 71 of the lamp module assembly includes a bulb lamp module 62, a plurality of LED lamp modules 63, and three circuits (electric wires) 87 to 89 for connecting them, as in the embodiment of FIG. The LED lamp module 63 is connected to a + pole circuit 87 and a common −pole circuit 88 following the resistor 76, and is connected to a 12V + pole circuit 89 and a −pole circuit 88.

  According to the lamp module assembly 68 of FIG. 4, the resistor 76 is provided in common to any of the connectors 74 that electrically connect the junction block 69 and the main part 71 of the lamp module assembly instead of each LED lamp module 63. As a result, the LED lamp module 63 can be reduced in size and the cost can be reduced by reducing the number of resistance components 76.

  The relay harness 70 may be omitted, and the connector 75 of the wire harness (each circuit 87 to 89) of the lamp module assembly main part 71 may be directly fitted and connected to the connector 72 of the junction block 69. In this case, a resistor 76 is disposed on the connector 72 of the junction block 69 or the connector 75 of the lamp module assembly main part 71.

  It is also possible to connect the lamp module assembly main part 71 to a circuit (not shown) other than the junction block 69 and a junction connector 93 described later via a connector. In this case, the lamp module assembly A resistor 76 can be disposed on the connector 75 of the main portion 71 or a connector (not shown) of another circuit.

  The lamp module assembly 90 shown in FIG. 6 includes a junction block 69, a relay harness 91 connected to the junction block 69, and a lamp module assembly main part 92 connected to the relay harness 91 by a connector. The section 92 is branched by a junction connector 93 into circuits 94 and 95 on the bulb lamp side and circuits 96 and 97 on the LED lamp module side, and a resistor (part for voltage reduction) 98 is provided in the junction connector 93. It is a feature.

  The junction block 69 on the base side has a + side circuit (electric wire) 77 and a ground side circuit (electric wire) 78 following the in-vehicle power supply, as in the previous example. The connector 73 is connected. In the other connector 99 of the relay harness 91, as with the one connector 73, one positive terminal and one negative terminal are provided.

  The lamp module assembly main part 92 includes a connector 100 connected to the relay harness 91, two circuits (electric wires) 101 and 102 of + and − poles following the connector 100, and halfway between the two circuits 101 and 102. A junction connector 93 connected to the junction connector, two circuits (electric wires) 96, 97 on the LED lamp module side connected to the junction connector 93, and a plurality of circuits connected to the two circuits 96, 97. LED lamp module 63.

  The lamp module assembly main part 92 is configured such that the connector 100, the subsequent circuits 101 and 102, and the junction connector 93 constitute a second relay harness, and the lamp module assembly main part is connected to the junction connector 93. It is also possible to indicate by the expression of connection.

  In the junction connector 93, circuits 101 and 102 from the in-vehicle power supply follow the bulb lamp side circuits 94 and 95, and the positive electrode circuit 94 on the bulb lamp side is connected via a resistor 98 (connected to one of the resistors 98). And the positive electrode circuit 96 on the LED lamp module side (the other side of the resistor 98 is connected to the circuit 96 on the LED lamp module side). In the junction connector 93, the negative electrode 95 on the bulb lamp side is connected to the negative electrode 97 on the LED lamp module side.

  Normally, the bulb lamp side circuits 94 and 95 and the LED lamp module side circuits 96 and 97 are connected to the junction connector 93 by connectors, respectively, but only the bulb lamp side circuits 94 and 95 are integrated from within the junction connector 93. Or let it be derived. It is also possible to connect the circuits 101 and 102 from the connector 100 following the relay harness 91 to the junction connector 93 via the connector.

  According to the lamp module assembly 90 of FIG. 6, the resistor 98 is provided not for each LED lamp module 63 but for the intermediate junction connector 93, thereby reducing the size of the LED lamp module 63 and reducing the number of resistance components. Cost reduction is achieved.

  Further, as in the example of FIG. 4, the resistor 76 is not connected to the intermediate connector 74 (FIG. 4) or the intermediate junction connector 93 (FIG. 6) instead of the junction block 38 far from the LED lamp module 63 in FIG. 98, the voltage reduction accuracy of the voltage with respect to the LED lamp is slightly improved. It goes without saying that the voltage reduction accuracy has no problem in practical use even in the configuration in which the resistor 39 is provided in the junction block 38 of FIG.

  The lamp module assemblies 37, 68, and 90 shown in FIGS. 3 to 6 include LED lamp modules 3 and 3 ′ shown in FIGS. LED lamp module etc.) can be used as appropriate. Needless to say, the present invention is not limited to the lamp modules 3, 3 'shown in FIGS. For example, the shape of the base 18, the cover 19, the case 20, the shape of the conductive circuit (such as the bus bar 22 and the lead terminal), the shape of the electric wire connecting portion (such as the press contact terminals 24 and 25), etc. (Not shown) can be applied to the embodiments of FIGS. 3 to 6 in which the positions of the resistors 39, 76, and 98 are changed.

  Further, in FIGS. 3 to 6 and the following embodiments, a conductor such as a solenoid (coil), a three-terminal regulator, a DC / DC converter, or the like is used instead of the resistor parts 39, 76, 98 as a voltage reducing part. Is also possible. Solenoids and the like are resistors in a broad sense.

  7 to 9 show other embodiments in which a resistor as a voltage reducing component is arranged on the connector. In the embodiment of FIG. 4, a resistor is provided on the connector 74 on the junction block 69 side, but in this embodiment, a resistor is provided on the lamp-side connector (connector 75 in FIG. 4).

  As shown in FIG. 7, the connector 125 of this example includes a synthetic resin base 126 and a cover 127 constituting a housing. The base 126 includes a base main body 128 and a housing main body 129, and is pressed against the base main body 128. Three bus bars 131 to 133 with terminals and resistors (components for voltage reduction) 134 connected to the two bus bars 131 and 132 are mounted.

  The first bus bar 131 is formed to be short and straight, and has press contact terminals 135 and 136 formed of two pairs of press contact pieces at both ends, and the second bus bar 132 is formed in a substantially L shape, and has an intermediate portion with one end portion. The third bus bar 133 is formed in a substantially L shape, and also has the press contact terminal 135 at one end. The other ends of the second and third bus bars 132 and 133 are positioned in the housing body 129 as male connector terminals 137.

  Each lead terminal 138 of the resistor 134 is pressed into contact with the press contact terminal 136 at the other end of the first bus bar 131 and the press contact terminal 136 in the middle of the second bus bar 132, and the press contact terminal 135 at one end of the first bus bar 131 is connected to the press contact terminal 135. One electric wire (circuit) 141 is press-contacted, the second electric wire (circuit) 142 is press-contacted to the press-contact terminal 135 at one end of the second bus bar 132, and the third press-connect terminal 135 to one end of the third bus bar 133 is An electric wire (circuit) 143 is press-contacted. The three electric wires 141 to 143 are routed as a single flat cable.

  For example, a positive electrode current whose voltage is reduced to, for example, 3.5 V by the resistor 134 flows through the first electric wire 141, and a positive electrode current of, for example, 12 V that remains at the power supply voltage flows through the second electric wire 142. A negative current flows through the electric wire 143 as a common ground. The base body 128 is provided with heat-dissipation notches 144 below the bus bars 131 to 133, and heat generated by the resistors 134 is transmitted to the bus bars 131 to 134 having high heat dissipation properties and is radiated to the outside from the notches 144. .

  The resistor built-in connector 125 in FIG. 7 is connected to the connector 140 branched from the wire harness trunk 139 as shown in FIG. 8, and the 3.5V LED lamp 145 is connected to each of the electric wires 141 to 143 led out from the resistor built-in connector 125. And a 12V bulb lamp (not shown) are connected to form a lamp module assembly 153.

  As shown in FIG. 9, a bulb lamp 146 is connected to a + pole 12V second electric wire 142 and a negative electrode third electric wire 143, and a positive electrode 3.5V first electric wire 141 and a negative electrode third electrode 143. The LED lamp 145 is connected to the electric wire 143 via the Zener diode 147 for preventing static electricity. In FIG. 7, the first electric wire 141 is used at 3.5V, and the second electric wire 142 is used at 12V. When the first electric wire 141 is not used, the second and third electric wires 142 and 143 are used at the power supply voltage (12V).

  In FIG. 7, a cover 127 is connected to a base 126 by a hinge 148 so as to be opened and closed. The cover 127 is provided with a wire receiving groove 149 and a pressure contact terminal receiving portion 150, and the cover 127 is a base with a flexible locking claw 151. 127 is engaged with the engagement recess 152 of 127.

  The main connector 140 is fitted and connected to the housing body 129 as shown in FIG. 8, and the 12V power is supplied from the terminal 137 through the bus bar 132, the resistor 134 and the bus bar 131 to the electric wire 141. Then, 12V power is directly supplied to the electric wire 142.

  According to the embodiment of FIGS. 7 to 9, it is not necessary to provide a resistor in the plurality of LED lamps 145, so that the number of components of the resistor is reduced, the cost is reduced, and the number of connection points of the resistor is reduced. Therefore, the reliability of the electrical connection is increased. Further, by providing the circuit 142 that directly supplies power separately from the voltage reducing circuit 141, power can be supplied to the unit that uses the power supply voltage as it is through the connector 125, and the circuit specifications are diversified. In addition, since the connector 125 can be intermediately connected to the wire harness 139 and the connector 125 that supplies power can be connected to a terminal other than the terminal, various wire harness forms are possible. Further, the connector 125 does not require a circuit board, and by mounting the bus bars 131 to 133 and the resistor 134 directly on the base 126, the cost and the size of the connector 125 can be reduced.

  FIG. 10 shows another embodiment of the LED lamp module according to the present invention.

  The LED lamp module 103 uses a bulb-type LED 104 in place of the chip-type (rectangular) LED 21 of the LED lamp module 3 'of FIG. The resistor is not mounted in the LED lamp module 103, but is mounted on a junction block, a connector, a junction connector, or the like as in the embodiment of FIGS. Further, the lead terminal 105 of the LED lamp 104 is used instead of the bus bar 22 of FIG.

  The LED lamp module 103 includes a base 106 and a cover 107 that form a synthetic resin case, a pressure contact terminal 108 that is surface-mounted on the base 106, a bulb-type LED 104 that is also surface-mounted on the base, and a pressure contact terminal 108. And a pair of lead terminals 105 of the LED 104 connected to or integrally with the LED 104.

  The press contact terminal 108 and the lead terminal 105 may be separate or integrated. If it is a separate body, connect it by welding. The pressure contact terminal 108 is formed integrally with a pair of front and rear pressure contact pieces and is raised along a rib-shaped wire guide 109. The electric wires 110 are pressed into contact with two pairs of press contact terminals 108 corresponding to the two lead terminals 105, and the electric wires 110 are led out to the outside while being bent at the groove portion 111 at the side end of the base 106. The configurations of the press contact terminal 108, the wire guide 109, and the wire 110 are the same as in the previous example.

  The base 106 is provided with a substantially semicircular groove 112 that engages the LED 104, and the groove 112 is surrounded by a half-shaped outer peripheral wall 113. The LED 104 is fitted into the groove 112 from above, and the tip is exposed to the outside. The LED 104 and the press contact terminal 108 are simultaneously surface-mounted on the base from above, and then the electric wire 110 is press contacted to the press contact terminal 108 from above. A locking claw 114 for the cover 107 is raised on the base 106.

  The cover 107 is approximately the same size as the base 106, is formed in a rectangular shape, has a space for accommodating the press contact terminal 108, the electric wire 110, and the like, and has a split peripheral wall 115 for the LED 104. And an engaging recess 116 for the locking claw 114.

  As shown in FIG. 10, after the LED 104 and the press contact terminal 108 are surface-mounted on the base and the electric wire 110 is press contacted, the cover 107 is attached to the base 106 from above. The groove 111 is pressed and bent to perform strain relief against the wire pulling force.

  The cover 107 can be integrated with the base 106 so as to be rotatable by a hinge (not shown). The shapes of the base 106 and the cover 107 are not limited to a rectangular shape or a box shape, and can be changed as appropriate.

  FIG. 11 shows a state in which a plurality of LED lamp modules 103 of FIG. 10 are connected in series to an electric wire to constitute a lamp module assembly 118. The number of LED lamp modules 103 is not limited to three, and seven or more LED lamp modules 103 can be arranged.

  In FIG. 12, LED lamp modules 103 similar to those in FIG. 10 are placed vertically and connected to the electric wires 110 in series, and the electric wires 110 are bent in a substantially self-shape to align the LED lamp modules 103 in a two-dimensional direction. Thus, for example, a lamp module assembly 119 that can be applied to a rear lamp, a turn signal lamp, or the like of an automobile is shown. The front end portion of each LED lamp 104 is fitted and fixed in a hole 121 of a transparent resin substrate 120, for example. The resin plate 120 is provided with a hole 122 for fixing the vehicle body or the like. A plurality of LED lamp modules 103 are arranged on the substrate 120 in the same shape in the extending direction of the electric wire 110.

  A connector 123 is provided at the base end of the electric wire 110, and a resistor (not shown) is disposed as a voltage reducing component in the connector 123, so that the voltage to each LED 104 is reduced (for example, voltage from 12V to 3.5V). Reduction) is performed in a lump, and the LED lamp module 103 is reduced in size and cost. The arrangement and connection of the resistors in the connector 123 are, for example, in the example of the connector 74 in FIG. 5 with the terminal 80 to the lamp bulb side omitted.

It is a perspective view which shows one Embodiment of the lamp module assembly which concerns on this invention. It is a perspective view which shows one Embodiment of the LED lamp module which concerns on this invention. It is explanatory drawing which shows an example of the circuit form of the lamp module assembly which concerns on this invention. It is explanatory drawing which shows the other example of the circuit form of a lamp module assembly. It is explanatory drawing which shows an example of the connector of the lamp module assembly of FIG. It is explanatory drawing which shows the other example of the circuit form of a lamp module assembly. It is a top view which shows the other example of the connector of a lamp module assembly. It is explanatory drawing which shows the outline | summary of the circuit form using the connector of FIG. It is explanatory drawing which similarly shows a circuit form in detail. It is a disassembled perspective view which shows other embodiment of the LED lamp module which concerns on this invention. It is a perspective view which shows one form of the lamp module assembly using the LED lamp module of FIG. It is a perspective view which similarly shows the other form of a lamp module assembly. It is a perspective view which shows one form of the conventional lamp module assembly. It is explanatory drawing which shows the circuit form of the conventional LED lamp module.

Explanation of symbols

1, 37, 68, 90, 118, 119, 153 Lamp module assembly 2a, 2b, 110, 141-143 Electric wire 3, 3 ', 63, 103 LED lamp module 4 Junction box (or junction connector)
5, 18, 106, 126 Base 6, 19, 107, 127 Cover 8, 21, 104 LED
9, 22, 131-133 Bus bar (circuit conductor)
10, 11, 24, 25, 108, 135 Press contact terminal (wire connection part)
38 Junction box 39, 76, 98, 134 Resistor (Voltage reduction component)
72 to 75, 125 connector 93 junction connector 105 lead terminal (circuit conductor)
137 Connector terminal

Claims (6)

An insulating case comprising a flat base and a cover covering the upper surface side of the base; upstream and downstream bus bars as circuit conductors disposed horizontally in contact with the upper surface of the base; and the chip-type LED arranged connected in contact with the upper surface of each of the bus bars between the respective bus bars in one end of the bus bars, wire connecting portions erected integrally from the respective bus bar at the other end of each of the bus bar An LED lamp module comprising: each pressure contact terminal as   2. A lamp module assembly comprising a plurality of LED lamp modules according to claim 1, wherein an electric wire is connected in series to each press contact terminal of each LED lamp module.   3. The lamp module assembly according to claim 2, wherein the electric wire is connected to a junction box or a junction connector, and the junction box or the junction connector is provided with a part for voltage reduction for the plurality of LED lamp modules.   3. The lamp according to claim 2, wherein the electric wire is connected to a junction box or a junction connector or other circuit via a connector, and the connector is provided with a voltage reducing component for the plurality of LED lamp modules. Module assembly.   The connector includes a base and a cover, and the base is provided with a bus bar including a connector terminal, and the voltage reducing component connected to the bus bar, and the electric wire is connected to the bus bar. The lamp module assembly according to claim 4.   6. The lamp module assembly according to claim 5, wherein a bus bar having a positive electrode connector terminal is connected to the voltage reducing component and the power supply electric wire.

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