JP2003142199A - Connector for connecting wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector for connecting a wire harness capable of securing waterproof of a sealed housing for electrical equipment without requiring a grommet and holding an intermediate connector without requiring a separate member for fixing and supporting the connector. SOLUTION: This connector is provided with the intermediate connector 21 fitted into an opening part 3b provided on the sealed housing 1 for electrical equipment from the outside and waterproofed between the intermediate connector 21 and the opening part 3b, and a connector socket 23 fitted into the intermediate connector 21 from the inside of the sealed housing 1 for electrical equipment and connecting an electrical equipment side wire harness 8 and a power source side wire harness 12 within the sealed housing 1 for electrical equipment. An inserting part of the power source side wire harness 12 at the inside of the intermediate connector 21 is made to have a waterproof structure. The inside of the connector socket 23 is made to have a non-waterproof structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness connection connector for a power supply connection system of vehicle-mounted electric components such as a vehicle lamp such as an automobile headlight.

[0002]

2. Description of the Related Art FIG. 13 is a sectional view showing a vehicle lamp provided with a conventional connector for connecting a wire harness. In the figure, 1 is a lamp housing for an automobile headlight, 2 is a front lens of the lamp housing 1, 3 is a back cover (maintenance cover) of the lamp housing 1,
Reference numeral 4 is a discharge lamp for LOW beam irradiation mounted in the lamp housing 1, 6 is a base of the discharge lamp 4, 5 is a flange attached to the base 6, and 7 is a base 6 thereof.
An igniter 8 fitted and connected to the igniter, an igniter wire harness 8 connected to the igniter 7 by soldering, a grommet 9 penetrating the igniter wire harness 8, and the grommet 9 is attached to the back cover 3. It is fitted in the opening 3a provided.

Therefore, the igniter wire harness 8 is led out to the outside from the inside of the lamp housing 1 through the grommet 9, and 10 is a connector connected to the leading end. Reference numeral 11 denotes a control unit having a hermetically sealed waterproof structure arranged at the lower portion of the lamp housing 1, and 12 denotes the control unit 11
The control unit wire harness connected to the output terminal of the connector 13 is a connector connected to the control unit wire harness 12, and the connector 1
3 and the connector 10 of the wire harness 8 for the igniter
Are fitted outside the rear of the lamp housing 1, so that the igniter wire harness 8 and the control unit wire harness 12 are electrically connected.

Reference numeral 14 is a power supply cord connected to the control unit, 15 is a power supply connector connected to the power supply cord 14, 16 is a high beam irradiation lamp mounted in the lamp housing 1, and 17 is the lamp. In the case of the power supply connection cord 16 as well, the power supply connection cord 17 is also led out to the outside via the grommet 18 attached to the back cover 3 of the lamp housing 1, and the lead-out end portion thereof is the control unit 1.
It is connected to 1.

FIG. 14 is an enlarged perspective view partially showing the wire harness in FIG. 13. In FIG. 14, 19 is a noise removing means provided in the middle of the igniter wire harness 8, and this noise removing means is shown. Reference numeral 19 includes a cylindrical ferrite core 19a fitted into the 4-pole wire of the igniter wire harness 8 and a coil 19b wound around the core 19a and holding the 4-pole wire.

FIG. 15 shows a modification of the noise means shown in FIG. 14. The noise removing means 20 shown in FIG. 15 is composed only of a cylindrical ferrite core, and this core 20 is the only core of the igniter wire harness 8. It is configured to prevent noise generation by fitting and holding it in the middle.

[0007]

Since the conventional wire harness connecting connector is constructed as described above, the connector 10 of the igniter wire harness 8 is passed from the inside of the lamp housing 1 through the opening 3a to the rear outside. In order to make the lamp housing 1 waterproof in the state of being led out, the grommet 9 for closing the opening 3a is indispensable, and moreover, the opening 3a must have a large opening diameter so that the connector 10 can be inserted therethrough. Therefore, there is a problem that the grommet 9 inevitably becomes large in size. Further, since the dead space behind the headlight of the automobile is extremely narrow, the fitting workability between the connectors 10 and 13 is poor in the dead space, and the connectors 10 and 13 are mounted on the lamp housing 1 by another member such as a bracket. The number of parts has increased, such as having to fix them, and it has been difficult to assemble headlight parts, resulting in high costs. Furthermore, since the exposed wire on one end side of the igniter wire harness 8 is soldered to the igniter 7 and the exposed wire on the other end side of the igniter wire harness 8 is inserted into the grommet 9, the control unit 11 There is a problem in that the control unit 11 has a completely sealed structure and a breathing action occurs due to a temperature change, and the breathing action reduces the waterproofness of the control unit 11.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to secure the waterproof property of the electrical equipment sealed housing without the need for a grommet and to require no separate member for fixing and supporting the connector. The purpose is to obtain a connector for connecting a wire harness.

Further, the present invention provides a connector for wire harness connection in which the intermediate connector does not come off from the hermetically sealed housing for electrical equipment even if the intermediate connector is accidentally removed from the outside during maintenance or the like in the hermetically sealed housing for electrical equipment. To aim.

A further object of the present invention is to obtain a wire harness connecting connector which can store a noise filter inside the intermediate connector and can reduce the noise filter holding member outside.

[0011]

A wire harness connecting connector according to the present invention includes an electric component (igniter portion) side wire harness connected to an electric component inside an electric housing and a power supply system (control unit). A wire harness connecting connector for connecting a connected power supply side (control section) wire harness, wherein the connector has a connection terminal for the power supply side (control section) wire harness, and is provided on a wall portion of the electrical equipment sealed housing. An intermediate connector, which is fitted and held from the outside in an opening for mounting a connector and is waterproof between the opening, and a terminal connected to the electric component (igniter portion) side wire harness, The power supply side (control section) wire harness and the electrical component (igniter section) are fitted to the intermediate connector from the inside of the closed housing.
A connector socket for electrically connecting a side wire harness, wherein the insertion portion of the power supply side (control unit) wire harness inside the intermediate connector has a waterproof structure, and the inside of the connector socket has a non-waterproof structure. Is.

A connector socket of a connector for connecting a wire harness according to the present invention has a connector fitting concave portion in a direction orthogonal to a terminal connecting direction with respect to an intermediate connector, and the connector fitting concave portion is provided with an electric component (igniter portion) side. A wire harness connector is inserted and fitted.

In the connector socket of the wire harness connecting connector according to the present invention, the power input (control section) is bent at a right angle and one end is connected to the terminal of the intermediate connector.
And a power output (control section) side terminal which is arranged in a direction orthogonal to the connection direction of the intermediate connector with respect to the terminal and is connected to the electrical component (igniter section) side wire harness connection connector. The (control section) side terminal and the power supply output (control section) side terminal are electrically connected by a noise filter.

In the wire harness connecting connector according to the present invention, a component housing recess for housing a noise filter is provided between the power input terminal and the power output terminal of the connector socket.

In the wire harness connecting connector according to the present invention, an axial guide groove is provided in the fitting portion of the connector socket of the intermediate connector, an engaging hole is provided at the bottom of the guide groove, and the connector socket has A guide protrusion that slidably fits into the guide groove is provided, and an engagement claw that engages with the engagement hole is provided on the guide protrusion.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below. Embodiment 1. 1 is a sectional view showing a vehicle lamp provided with a wire harness connecting connector according to a first embodiment of the present invention. The same parts as those in FIG. 13 are designated by the same reference numerals and their duplicate description will be omitted. In the figure, 3b is a back cover 3 of the lamp housing 1 which is a sealed housing for electrical equipment.
Is an opening for connector mounting provided at 21, an intermediate connector fitted and held in the opening 3b from the outside of the back cover 3 through a packing 22, and a connector 23 fitted and held in the intermediate connector 21. Socket, 2
Reference numeral 4 denotes an electrical component (igniter portion) side wire harness connection connector (hereinafter referred to as electrical component side connector) connected to the igniter wire harness 8, and the electrical component side connector 24 is fitted into the connector socket 23. There is.

2 is an enlarged view of the intermediate connector mounting portion in FIG. 1, FIG. 3 is a front view of the connector mounting opening in FIGS. 1 and 2, FIG. 4 is a sectional view of FIG. 2, and FIG. FIG. 6 is a perspective view of the connector socket fitted with the connector, and FIG. 6 is an exploded perspective view of FIG. 5, and the detailed configurations of the intermediate connector 21, the connector socket 23, and the opening 3b will be described based on these drawings. To do. First, the intermediate connector 2
1 is integrally formed of an electric insulating material such as resin, and has an outwardly facing flange 211 on the outer periphery of the intermediate portion, and a cylindrical socket fitting tubular portion 212 is formed on one side of the flange 211. On the opposite side of the flange 211, a bottomed cylindrical harness connection side tubular portion 213 is formed coaxially with the socket fitting tubular portion 212, and the socket fitting tubular portion 212 and the harness connection side tubular portion 213 are Communicating with each other.

In FIG. 4, reference numeral 214 denotes a small-diameter tubular harness insertion tube portion integrally formed with the bottom portion 213a of the harness connection side tube portion 213.
Reference numeral 4 also serves as a terminal hole, and as shown in FIGS. 5 and 6, the same number as the number of poles of the control unit wire harness (hereinafter, referred to as a power supply side wire harness) 12 is provided. The harness insertion tubular portion 214 is configured such that the socket fitting tubular portion 21 is provided in the harness connection side tubular portion 213.
It extends to the vicinity of the boundary with 2, and a terminal insertion port 215 is provided at the inner end of the harness connection side tubular portion 214.

Reference numeral 25 is connected to the end of the wire harness 12 on the power source (control section) side to connect the harness insertion tube section 214.
A power supply (control unit) system terminal inserted in the inside, and 26 for waterproofing, which is fitted into the insertion unit of the power supply (control unit) side wire harness 12 in the harness insertion tube unit 214 and seals the insertion unit Wire seal (sealing means). Here, the insertion portion of the power supply wire harness 12 in the harness insertion tubular portion 214 has a waterproof structure in which it is completely sealed by the wire seal 26, but the terminal insertion port in the harness insertion tubular portion 214 is An air passage 27 is formed between 215 and the wire seal 26. The ventilation path 27 is formed of a gap between the terminal 25 and the harness insertion tubular portion 214, and communicates with the socket fitting tubular portion 212 through the terminal insertion port 215.

Reference numeral 216 denotes a plurality of engaging projections integrally formed on the outer peripheral surface of the socket fitting tubular portion 212 at predetermined intervals in the circumferential direction, and one end of each of the engaging projections 216 is shown in FIG. As shown in FIG. 6, a tapered surface 216a is formed which is inclined in a direction facing the flange 211.

5 and 6, reference numeral 217a denotes a planar U-shaped notch formed by cutting the peripheral wall of the socket fitting cylindrical portion 212 from its tip to a substantially intermediate portion. Due to the cutout portion 217a, the tip end side of the socket fitting cylinder portion 212 is a cutout cylinder portion 217 having a substantially half-cylindrical shape.
In FIG. 6, reference numeral 218 denotes an axial guide groove integrally formed at a position symmetrical to the inner wall of the socket fitting cylinder portion 212 (only one guide groove is shown in the figure), and 219 denotes a wall portion of the cutout cylinder portion 217. The engaging hole is provided and opens at the bottom of the guide groove 218.

Next, the detailed structure of the connector socket 23 will be described. This connector socket 23 is shown in FIG.
As shown in FIG. 8, it is inserted into the socket fitting cylindrical portion 212 of the intermediate connector 21 along the axial direction from the opening end in the axial direction, and the connector fitting concave portion 231 provided at the rear portion in the inserting direction. And a component accommodating recess 232 provided adjacent to the connector fitting recess 231 and provided on the tip side in the insertion direction.

Here, as shown in FIG. 4, the connector fitting concave portion 231 and the component accommodating concave portion 232 are formed in a direction orthogonal to the inserting direction of the connector socket 23 into the intermediate connector 21, and opposite directions to each other. It has a structure that is open to. The connector (electrical component side connector) 24 of the igniter wire harness 8 is inserted and fitted into the connector fitting recess 231 and the noise filter 33 described later is housed in the component housing recess 232. Has become.

5 to 8, reference numeral 233 is an arcuate flange integrally formed on the outer wall of the connector fitting recess 231. This arcuate flange 233 is substantially the same as the inner diameter of the cutout tube portion 217 of the intermediate connector 21. They are formed to have the same diameter and are fitted and aligned with the inner circumference of the cut-out tubular portion 217. In FIG. 6, 234 is the connector socket 23.
Is a guide projection that is integrally formed on both outer walls of the intermediate connector 21 and is slidably fitted in the guide groove 218 in the intermediate connector 21. The guide projection 234 extends in the axial direction and the rear end thereof is the arcuate flange. 233, and the front end is connected to the outer wall of the connector socket 23. Reference numeral 235 is an engaging claw integrally formed on the guide protrusion 234. The engaging claw 235 is to be engaged with the engaging hole 219 of the intermediate connector 21, and the engaging claw 235 has the guide groove 218.
A taper surface 235a is formed at the front end in the insertion direction with respect to the guide groove 218 in order to facilitate the fitting.

4, FIG. 7, and FIG. 8, reference numeral 31 is a power input (control unit) side terminal assembled to the front end wall of the component housing recess 232 in the connector socket 23. This power input (control unit) The side terminal 31 is bent at a right angle, and one end thereof extends from the front end wall surface of the component housing recess 232 in the direction of connection with the terminal 25 in the intermediate connector 21 and is inserted into the terminal insertion port 215 of the intermediate connector 21. And the other end is a circuit connecting piece 31b extending from the opening end wall of the component housing recess 232.

Reference numeral 32 denotes a power output (control section) side terminal which is set through the bottom of the connector fitting recess 231 of the connector socket 23. This power output (control section)
One end of the side terminal 32 extends into the connector fitting recess 231 and serves as a connector terminal connecting piece 32a to which a terminal (not shown) of the electrical component (igniter) side connector 24 in FIG. 1 is connected. And the other end of the circuit connecting piece portion 32b, which protrudes outward from the bottom portion of the connector fitting recess 231.
Has become. Here, the power input (control unit) side terminal 31
Circuit connection piece 31b and power output (control section) side terminal 32
As shown in FIGS. 7 and 8, a plurality of circuit connecting piece portions 32b are arranged in parallel to each other with the opening end of the component accommodating recess 232 interposed therebetween.

Reference numeral 33 is the power input (control unit) side terminal 31.
It is also a noise filter that electrically connects the power supply output (control unit) side terminal 32. As shown in FIG. 8, the noise filter 33 according to the first embodiment has an annular core 33.
a and a coil 33b wound around the core 33a. The number of coils 33b is the same as that of each of the power input (control section) side terminal 31 and the power output (control section) side terminal 32. Has become. Both ends of each coil 33b are connected to the power input (control unit) side terminal 31 and power output (control unit) as shown in FIGS.
The side terminals 32 are connected to the respective circuit connecting pieces 31b and 32b.

Next, an opening 3 for mounting a connector, which is provided on a back cover 3 which is a rear wall of the lamp housing 1.
b will be described. The opening 3b is a circular hole having a diameter substantially the same as the outer diameter of the socket fitting cylindrical portion 212 of the intermediate connector 21, and has a notch 3c (see FIG. 3) formed in the inner peripheral edge thereof. The notch 3c is for fitting the engagement protrusion 216 of the socket fitting cylinder 212 into the passage.

Next, the assembling will be described. First, the packing 22 is fitted on the outer periphery of the socket fitting cylindrical portion 212 of the intermediate connector 21 and brought into contact with the flange 211, and the socket fitting cylindrical portion 212 in this state is inserted into the opening 3b of the lamp housing 1 from the outside. The opening 3 while inserting
The engaging projection 216 of the socket fitting tubular portion 212 is fitted into the notch portion 3c of b and passed. After the passage, the intermediate connector 21 is attached to the tapered surface 216 of the engaging protrusion 216.
Rotate in the a direction. Accordingly, the engaging protrusion 216
Engages in pressure contact with the inner peripheral edge of the opening 3b, and the packing 22 is pinched between the flange 211 of the intermediate connector 21 and the outer wall surface of the back cover 3. Therefore, the outside of the intermediate connector 21 has a complete waterproof structure by the packing 22 and the wire seal 26.

In this way, by inserting and rotating the intermediate connector 21 into the opening 3b, the intermediate connector 2 is rotated.
1 is waterproofly assembled to the back wall (back cover 3) of the lamp housing 1. In the assembled state, the cutout portion 217a of the cutout tubular portion 217 of the socket fitting tubular portion 212 faces the igniter 7. Face up and open.

Next, the connector socket 23 is inserted into the socket fitting cylindrical portion 212 of the intermediate connector 21 from the axially open end.
Insert. At the time of this insertion, the connector socket 2 is inserted into the guide groove 218 in the socket fitting tubular portion 212.
By inserting and inserting the guide protrusion 234 of No. 3,
The terminal insertion direction of the connector socket 23 with respect to the terminal insertion port 215 in the intermediate connector 21 and the engagement direction of the engagement claw 235 of the connector socket 23 with respect to the engagement hole 219 of the intermediate connector 21 are positioned.

In that position, the connector socket 23
Is inserted into the socket fitting tubular portion 212 of the intermediate connector 21, so that the insertion piece portion 31 a of the power input (control unit) side terminal 31 of the connector socket 23 is inserted into the terminal insertion port 215 of the intermediate connector 21. The terminal 25 on the side of the intermediate connector 21 is contacted, and the engaging claw 235 of the connector socket 23 makes the intermediate connector 21
Engaging with the engaging hole 219 of the connector socket 2 and
An arcuate flange 233 on the rear end side of the third connector 3 is fitted to the inner circumference of the cutout tube portion 217 of the intermediate connector 21.

In this way, the socket fitting cylinder 2
In the set state in which the connector socket 23 is inserted and engaged with the connector 12, the component storage recess 232 of the connector socket 23 is covered by the peripheral wall of the socket fitting tubular portion 212 with the noise filter 33 accommodated, and The connector fitting recess 231 of the socket 23 is opened upward at the notch 217a of the socket fitting tubular portion 212.

Therefore, the electrical component side connector 24 connected to the electrical component side wire harness 8 hanging from the igniter 7 in the lamp housing 1 is connected to the connector socket 2
By being fitted into the connector fitting recess 231 of 3 from above, the electrical component (igniter section) side wire harness 8 and the power source (control section) side wire harness 12 are electrically connected.

Next, the operation will be described. The connection side of the terminal 25 in the power (control section) side wire harness 12 has a waterproof structure in which the wire seal 26 is sealed in the harness insertion tubular section 214. Is composed of a plurality of wire twisted wires, and there is a gap between the wire twisted wires, and this gap is in a state of communicating with the ventilation path 27 in the harness insertion tubular portion 214. Further, since a gap is also formed in the fitting portion between the intermediate connector 21 and the connector socket 23, the ventilation passage 27 is in communication with the lamp housing 1 having the hermetically sealed waterproof structure due to the gap.

In other words, inside the lamp housing 1 having the hermetically sealed structure, the terminal insertion port 215 and the ventilation passage 27 in the harness insertion tube portion 214 are inserted from the gap of the fitting portion between the intermediate connector 21 and the connector socket 23. The power harness (control unit) side wire harness 12 is open to the outside through the gap between the wire strands. Therefore, the breathing action in the lamp housing 1 due to the temperature change of the control unit 11 is suppressed, and more stable waterproofness can be secured.

According to the first embodiment described above, the opening 3 provided in the back cover 3 of the lamp housing 1.
By inserting the intermediate connector 21 from the outside into b and rotating it in one direction, the engaging protrusion 216 of the intermediate connector 21 is engaged with the inner edge of the opening 3b, and the outer wall surface of the back cover 3 is formed. The packing 22 is pinched between the intermediate connector 21 and the flange 211, and the harness insertion tube 2
Since the insertion portion of the power supply side wire harness 12 inserted into the plug 14 is sealed by the wire seal 26, the conventional grommet 9 (see FIG. 13) can be eliminated and easily assembled to the back cover 3. As a result, the number of parts can be reduced and the cost can be reduced, and the packing 22 and the wire seal 26 can provide a waterproof structure on the outside of the intermediate connector 21.

Further, an axial guide groove 218 is provided on the inner wall of the socket fitting cylindrical portion 212 of the intermediate connector 21,
An engaging hole 219 is provided at the bottom of the guide groove 218, and the guide groove 21 is formed on the outer wall of the connector socket 23 that fits in the socket fitting cylindrical portion 212 along the axial direction.
Guide projection 2 for slidably fitting and guiding
34 is provided, and the engagement hole 219 is provided in the guide protrusion 234.
Since the engaging claws 235 that can be engaged and disengaged with the socket fitting tubular portion 212 are formed, the guide projection 234 of the connector socket 23 is fitted into the socket fitting tubular portion when the connector socket 23 is fitted into the socket fitting tubular portion 212. 212. By only inserting the connector socket 23 by inserting it into the guide groove 218 of the inner wall of 212, the insertion piece 31a of the power input side terminal of the connector socket 23 can be guided to the terminal insertion port 215 of the intermediate connector 21, and the connector The engaging claw 235 of the socket 23 is attached to the socket fitting tubular portion 212.
Can be guided to the engagement position with the engagement hole 219, and therefore, the fitting operation of the connector socket 23 to the intermediate connector 21 can be easily performed.

Further, in the connector socket 23,
Since the connector fitting recess 231 is provided in the direction orthogonal to the insertion direction of the connector socket 23 into the intermediate connector 21, the wire harness for the electric component side that hangs down from the igniter 7 at the rear of the discharge lamp (electrical component) 4. 8
Electrical component (igniter) side connector 24 connected to
Can be fitted into the connector fitting recess 231 from above, the connector can be easily connected, and the electric component side wire harness 8 can be stably held.

Furthermore, since the front end side of the connector socket 23 is provided with the component accommodating recess 232 which opens in the opposite direction to the connector fitting recess 231, the socket fitting cylindrical portion 212 of the intermediate connector 21. When the connector socket 23 is fitted into the connector housing 23, the socket fitting cylindrical portion 212 can cover the component housing recess 232, so that the noise filter 3 can be placed in the component housing recess 232.
There is an effect that the noise filter 33 can be concealed and held without requiring a special holding member only by storing the noise filter 3.

Further, the circuit connection piece portion 31b of the power input terminal 31 which is bent at a right angle and is attached to the front end side of the connector socket 23, and the connector socket 2
3, the power supply output (control unit) side terminal 32, which is set through the bottom of the connector fitting recess 231, and the circuit connection piece 32b of the power output (control unit) side 32, extends in the same direction at a position sandwiching the component housing recess 232. Therefore, with the noise filter 33 housed in the component housing recess 232, the noise filter 3
The coil 33b of No. 3 is connected to each of the circuit connecting pieces 31b, 32b.
The effect is that it can be easily connected to.

Further, the connector socket 23 is inserted and engaged in the socket fitting tubular portion 212 of the intermediate connector 21, and the electrical component side connector 24 is fitted in the connector fitting recess 231 in the direction orthogonal to the inserting direction. Since the configuration is such that the intermediate connector 21 is loosely fitted to the back cover 3 or the back cover 3 is intended to be removed for maintenance or the like, the intermediate connector 21 is erroneously mistaken.
The effect that the intermediate connector 21 does not come off from the back cover 3, the connector socket 23 does not come off from the intermediate connector 21 and the electrical component (igniter part) side connector 24 does not come off even when trying to remove There is.

Further, the intermediate connector 21 and the connector socket 23 are fitted to each other through the gap between the wire twisted wires of the power source side wire harness 12 through the air passage 27 and the terminal insertion port 215 in the harness insertion tube portion 214. Since it is configured to communicate with the inside of the lamp housing 1 through the gap between the parts, there is an effect that the breathing action in the lamp housing 1 due to the temperature change of the control unit 11 is suppressed, and more stable waterproofness can be secured.

Embodiment 2. 9 is a sectional view showing a wire harness connecting connector according to Embodiment 2 of the present invention, FIG. 10 is a perspective view of a connector socket in FIG. 9, and FIG.
FIG. 1 is a perspective view of the connector socket of FIG. 10 and a circuit board separated from each other. In the figure, 34 is a circuit board for electrically connecting the circuit connection pieces 31b and 32b of the power supply input (control section) side terminal 31 and the power supply output (control section) side terminal 32, respectively. The circuit board 34 has a through hole 34a fitted into the circuit connection piece 31b of the power input (control section) side terminal 31 and a through hole 34b fitted into the circuit connection piece 32b of the power output (control section) side terminal 32. And a pattern 34c connected to the through holes 34a and 34b.
The circuit board 34 is used when the connector socket 23 does not require the noise filter 33.

According to the second embodiment, when the connector socket 23 does not require the noise filter 33,
A circuit board 34 is used instead of the noise filter 33, and the through holes 34a and 34b of the circuit board 34 are simply fitted into the power supply input (control section) side terminal 31 and the power supply output (control section) side terminal 32, respectively. Power supply input (control section) side terminal 31 and power supply output (control section) side terminal 32
There is an effect that can be easily connected.

Embodiment 3. 12 is a perspective view of a wire harness connecting connector according to a third embodiment of the present invention. In the figure, 231a is a tapered cut surface provided at a corner portion of the opening end wall of the connector fitting recess 231 in the connector socket 23.

In the third embodiment, since the tapered cut surface 231a is provided on the opening end wall of the connector fitting concave portion 231, the opening edge of the connector fitting concave portion 231 is formed by the cut surface 231a. The portion can be formed into a shape along the circular edge of the socket fitting tubular portion 212 of the intermediate connector 21.
There is an effect that the connector socket 23 can be simply fitted into the connector 2, and the whole can be made compact.

In each of the above-mentioned embodiments, the wire harness connecting connector used in the power supply (control section) supply system of the headlight of the automobile has been described. It can also be applied as a wire harness connector for a vehicle engine system.

[0049]

As described above, according to the present invention, it has the connection terminal of the power (control section) side wire harness and is fitted from the outside into the opening provided in the wall of the electrical equipment hermetically sealed housing. And an intermediate connector that is waterproof between the opening,
A connector socket is fitted to the intermediate connector from the inside of the electrical equipment sealed housing to connect the electrical component (igniter portion) side wire harness and the power source (control portion) side wire harness in the electrical equipment sealed housing. Since the insertion portion of the power (control unit) side wire harness inside the intermediate connector has a waterproof structure, and the inside of the connector socket has a non-waterproof structure, a conventional waterproof grommet is provided. The intermediate connector can be directly fitted and held in the opening of the electrical equipment sealed housing without needing, and therefore, as a special support member for fixing and supporting the intermediate connector outside the electrical equipment sealed housing. This eliminates the need for wires, reduces the number of parts, reduces costs, and has a good workability in assembly. There is an effect that Kuta can be obtained. In addition, by making the connector socket non-waterproof as described above, the breathing action in the electrical equipment sealed housing due to the temperature change of the control unit to which the power source (control section) side wire harness is connected is suppressed, and it is more stable. This has the effect of ensuring waterproofness.

According to the present invention, the connector socket is provided with
The connector fitting recess is provided in the direction orthogonal to the terminal connection direction with the intermediate connector, and the wire harness connection connector on the electrical component (igniter part) side is inserted and fitted into this connector fitting recess. The wire harness connection connector on the side of the electrical component (igniter portion) inside the housing can be easily fitted to the intermediate connector, and the electrical component can be inserted into the connector socket even if an external force acts in the insertion direction of the intermediate connector. The (igniter portion) side wire harness connection connector does not come off, and there is an effect that the fitted state of the electrical component (igniter portion) side wire harness connection connector and the connector socket can be stably secured. External force to the waterproof structure can be relaxed and stable waterproofness can be secured.

According to the present invention, the power input (control unit) side terminal, which is bent at a right angle and one end of which is connected to the terminal in the intermediate connector, and the direction orthogonal to the connection direction to the terminal in the intermediate connector are provided. A power output (control section) side terminal to which the terminal of the electrical component (igniter section) side wire harness connection connector is connected is provided, and the power input (control section) side terminal and the power output (control section) side Since it is configured to connect the terminals with the noise filter, it is not necessary to provide the noise filter on the power supply side wire harness that extends to the outside as in the past, and for this reason, it is special for fixing and supporting the noise filter outside. There is an effect that it can be stably held without the need of the member.

According to the present invention, the component socket is provided between the power input (control section) side terminal and the power output (control section) side terminal in the connector socket, so that the component storage recess is provided. It is easy to connect a noise filter to each of the power supply input (control unit) side terminal and the power supply output (control unit) side terminal, and the noise filter can be housed and held in the component housing recess. There is an effect that the filter can be stably held without requiring a special supporting member for fixing and supporting the filter.

According to this invention, an axial guide groove is provided in the fitting portion of the connector socket of the intermediate connector,
An engaging hole is provided at the bottom of the guide groove, and a guide protrusion for slidably fitting the guide groove is provided on the connector socket. The guide protrusion is engaged with the engaging hole. Since the mating claw is provided, when the connector socket is fitted to the intermediate connector, the guide protrusion of the connector socket is simply fitted into the guide groove of the intermediate connector and the connector socket is inserted. The power input (control unit) side terminal can be guided to the terminal insertion port of the intermediate connector, and the engaging claw of the connector socket can be guided to the engaging position with the engaging hole of the intermediate connector. There is an effect that the fitting operation of the connector socket to the connector can be easily performed.

[Brief description of drawings]

FIG. 1 is a sectional view showing a vehicle lamp provided with a wire harness connecting connector according to a first embodiment of the present invention.

FIG. 2 is an enlarged view of an intermediate connector mounting portion in FIG.

3 is a front view of the connector mounting opening in FIGS. 1 and 2. FIG.

4 is a cross-sectional view of FIG.

FIG. 5 is a perspective view showing a state where a connector socket is fitted to the intermediate connector.

FIG. 6 is an exploded perspective view of FIG.

FIG. 7 is a perspective view of the connector socket in FIG. 6 viewed from below.

8 is a perspective view of the connector socket of FIG. 7 and a noise filter separated from each other.

FIG. 9 is a sectional view showing a wire harness connecting connector according to a second embodiment of the present invention.

FIG. 10 is a perspective view of the connector socket in FIG.

11 is a perspective view of the connector socket of FIG. 10 and a circuit board separated from each other.

FIG. 12 is a perspective view of a wire harness connecting connector according to a third embodiment of the present invention.

FIG. 13 is a cross-sectional view showing a vehicle lamp provided with a conventional connector for connecting a wire harness.

FIG. 14 is an enlarged perspective view partially showing the wire harness in FIG.

FIG. 15 is a perspective view showing a modified example of FIG.

[Explanation of symbols]

1 Lamp housing (closed housing for electrical equipment), 2
Lens, 3 back cover (maintenance cover), 3
b Connector mounting opening, 3c cutout, 4 discharge lamp (electrical component), 5 flange, 6 base, 7 igniter, 8 igniter wire harness (electrical component side wire harness), 21 middle connector, 22 packing, 23 connector Socket, 24 electrical component side connector, 25 terminal, 26 wire seal, 27 air passage, 3
1 power supply input side terminal, 31a insertion piece part, 31b circuit connection piece part, 32 power supply output side terminal, 32a connector terminal connection piece part, 32b circuit connection piece part, 33 noise filter, 33a core, 33b coil, 34 circuit board, 34a, 34b through hole, 34c pattern,
211 flange, 212 socket fitting side tubular portion, 21
3 harness connection side tubular portion, 213a bottom portion, 214 harness insertion tubular portion, 215 terminal insertion port, 216 engaging protrusion, 216a tapered surface, 217 notched tubular portion, 21
7a notch, 218 guide groove, 219 engaging hole, 23
1 connector fitting concave portion, 231a cut surface, 232
Component storage recesses, 233 arcuate flanges, 234 guide protrusions, 235 engaging claws, 235a tapered surfaces.

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Claims (5)

[Claims] 1. A wire harness connecting connector for connecting an electric component side wire harness connected to an electric component inside a hermetically sealed housing for electric components and a power source side wire harness connected to a power system to the power source side wire harness. An intermediate connector that has a connection terminal, is fitted and held from the outside in an opening for connector mounting provided in the wall of the electrical housing, and is waterproof between the opening and the electrical component. Has a terminal connected to the side wire harness,
A power supply side wire inside the intermediate connector, comprising: a connector socket that is fitted into the intermediate connector from the inside of the electrical equipment sealed housing to electrically connect the power supply side wire harness and the electrical component side wire harness. A connector for connecting a wire harness, wherein the harness insertion portion has a waterproof structure, and the inside of the connector socket has a non-waterproof structure. 2. The connector socket has a connector fitting recess in a direction orthogonal to the terminal connecting direction with respect to the intermediate connector, and the electrical component side wire harness connecting connector is inserted and fitted in the connector fitting recess. The wire harness connection connector according to claim 1, wherein 3. A connector socket is provided with a power input side terminal bent at a right angle and having one end connected to a terminal of an intermediate connector, and an electric component arranged in a direction orthogonal to a connecting direction to the terminal of the intermediate connector. The power supply output side terminal to which the side wire harness connection connector is connected is provided, and the power supply input side terminal and the power supply output side terminal are electrically connected by a noise filter. Connector for wire harness connection described. 4. The connector socket is provided with a component housing recess for housing a noise filter between the power input terminal and the power output terminal.
Connector for wire harness connection described. 5. An intermediate guide is provided with an axial guide groove in a fitting portion of a connector socket of the intermediate connector, an engaging hole is provided at a bottom portion of the guide groove, and the connector socket is slidably fitted in the guide groove. The connector for wire harness connection according to claim 1, wherein a guide protrusion to be fitted is provided, and an engaging claw to be engaged with the engagement hole is provided to the guide protrusion.