JP6907038B2 - connector - Google Patents

Description

The present invention relates to a connector.

For example, a waterproof connector connected to a device such as a motor, a battery, or an inverter seals between the outer peripheral surface of the electric wire and the inner peripheral surface of the housing by a rubber stopper attached to each electric wire (for example,). See Patent Document 1). In addition, this connector has a pair of terminals for interlocking in the housing, and has an interlocking function that allows energization from the electric wire to the equipment by short-circuiting the terminals by joining with the equipment.

Japanese Unexamined Patent Publication No. 2014-96310

In a waterproof connector having an interlock function, it is necessary to seal between the electric wire connected to the interlock terminal and the housing with a rubber stopper. Further, when this connector is used without using the interlock function by removing the terminal for the interlock, it is necessary to close and seal the lead-out portion of the electric wire for the interlock with a dedicated sealing member. Therefore, the cost increases due to the complicated seal structure and the increase in the number of parts.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector capable of obtaining good sealing performance according to a usage state without causing an increase in cost.

In order to achieve the above-mentioned object, the connector according to the present invention is characterized by the following (1) to (3).
(1) The housing joined to the mating connector and
A plurality of terminals connected to the ends of a plurality of electric wires and housed in the housing, and
A sealing member having a plurality of sealing holes through which the electric wires drawn from the housing are inserted and fitted into the housing to seal between the outer peripheral surface of the electric wires and the inner peripheral surface of the housing.
A holder having a plurality of insertion holes through which the electric wire drawn from the housing is inserted and attached to the housing to hold the seal member.
With
The plurality of terminals include a pair of interlocking terminals in which the housing is joined to the mating connector and short-circuited by a conduction pin provided on the mating connector.
With respect to the housing from which the pair of interlock terminals have been removed,
Instead of the holder, said pair of pins with a holder having a pair of closure pin pair of the electric wire is inserted into the pair of the seal hole has been passed extending from the terminal for interlocks removed is attached A connector characterized by being made.
(2) The plurality of terminals include a pair of interlock terminals and a pair of first terminals connected to the pair of electric wires that are permitted to be energized by a short circuit between the pair of interlock terminals. Consists of
The pair of first terminals are housed in the housing so as to be spaced apart in the width direction, and the pair of interlock terminals are housed in the housing between the pair of first terminals. The connector according to (1), wherein the connector is housed so as to be arranged in the vertical direction.
(3) the first terminal, the internal coating around the conductor shield layer and outer coating are shielded terminal shield wire provided are connected in order,
Wherein the housing, the shield shell covering at least the shield terminals are provided on the shield shell connector according to you, wherein (2) said shield layer of said shield wire is conductive.

According to the connectors having the above configurations (1) and (2) , one sealing member can seal a plurality of electric wire drawing points. As a result, the cost can be reduced by reducing the number of parts as compared with the structure in which a rubber stopper for sealing is attached to each electric wire.
In addition, when a specific terminal among multiple terminals is not used, a holder with a pin is attached to the housing, and a closing pin is inserted into the seal hole through which the electric wire extending from the removed terminal is passed. It is sealed by being inserted.
As described above, according to the connector having this configuration, good sealing performance can be obtained according to the usage state without causing an increase in cost, and versatility can be enhanced.
Further, according to the connectors having the configurations (1) and (2) above, when the interlock terminal is removed because the interlock function is not used, a holder with a pin is attached to the housing for interlocking. It is possible to seal the seal hole through which the electric wire extending from the terminal of is inserted. That is, a good sealing state can be maintained regardless of the presence or absence of the interlock function, and versatility can be enhanced.
According to the connector having the configuration of (3) above, good sealing performance can be obtained depending on the usage state, so that corrosion of the shield shell and the like in the housing can be suppressed, and the shield layer of the shielded electric wire is good. It is possible to maintain a good shielding effect.

According to the present invention, it is possible to provide a connector capable of obtaining good sealing performance according to a usage state without causing an increase in cost.

The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through the embodiments described below (hereinafter referred to as "embodiments") with reference to the accompanying drawings. ..

FIG. 1 is a perspective view of a connector according to the present embodiment. FIG. 2 is an exploded perspective view of the connector according to the present embodiment. FIG. 3 is a cross-sectional view taken along the line AA in FIG. FIG. 4 is a cross-sectional view taken along the line BB in FIG. FIG. 5 is a perspective view of the seal member. FIG. 6 is a front view of the housing in which the seal member is mounted, as viewed from the rear end before mounting the holder. FIG. 7 is a perspective view of the holder. FIG. 8 is a perspective view of the connector according to the present embodiment in a state where the interlock function is removed. FIG. 9 is an exploded perspective view of the connector according to the present embodiment with the interlock function removed. FIG. 10 is a cross-sectional view taken along the line CC in FIG. FIG. 11 is a perspective view of a holder that is attached when the interlock function is removed. FIG. 12 is a perspective view of the connector according to the reference example. FIG. 13 is an exploded perspective view of the connector according to the reference example. FIG. 14 is a cross-sectional view taken along the line DD in FIG.

Hereinafter, examples of embodiments according to the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a connector according to the present embodiment. FIG. 2 is an exploded perspective view of the connector according to the present embodiment. FIG. 3 is a cross-sectional view taken along the line AA in FIG. FIG. 4 is a cross-sectional view taken along the line BB in FIG.

As shown in FIGS. 1 to 4, the connector 10 according to the present embodiment is connected to the ends of a plurality of shielded electric wires 1. The connector 10 is used, for example, for wiring a hybrid car or an electric vehicle. The connector 10 is, for example, a shield connector for connecting between a motor and an inverter, between an inverter and a battery, and the like with a shielded electric wire 1. The connector 10 is joined to a mating connector (not shown) provided in the case of a device such as an inverter, a motor, or a battery.

The connector 10 includes a housing 20, a shield shell 30, a terminal 40, a seal member 50, a holder 60, and an interlock terminal 70.

The housing 20 is made of resin. The housing 20 is formed in a square tubular shape, and the tip end side thereof is a joint portion 21 to be joined to the mating connector. The rear end side of the housing 20 is an insertion portion 22 into which the terminal 40 is inserted. Locking protrusions 23 are formed on both sides of the insertion portion 22 of the housing 20.

The shield shell 30 is made of a conductive metal material and is formed in a square tube shape. The shield shell 30 is fitted inside the housing 20. A resin terminal holding member 31 is housed inside the shield shell 30. The terminal holding member 31 is formed with cavities 32 and 33 into which terminals 40 and 70 are inserted from the rear end side. The cavities 32 are formed at intervals in the width direction of the terminal holding member 31. The cavity 33 is formed in the center of the terminal holding member 31 in the width direction, and is formed at intervals in the thickness direction of the terminal holding member 31. The terminals 40 and 70 are held by the terminal holding member 31 by being inserted into the cavities 32 and 33.

The terminal 40 is a shield terminal formed of a conductive metal material and to which the end of the shielded electric wire 1 is connected. The shielded electric wire 1 includes a conductor 2 made of a stranded wire obtained by twisting a plurality of strands, an inner coating 3 made of an insulating synthetic resin or the like covering the periphery of the conductor 2, and a braid provided around the inner coating 3. This is a coaxial cable having a shield layer 4 made of a conductor such as the above, and an outer coating 5 made of an insulating synthetic resin or the like that covers the periphery of the shield layer 4. The terminal 40 is crimp-fixed to the conductor 2 exposed at the end of the shielded electric wire 1.

The conductor 2 and the shield layer 4 are exposed at the end of the shielded electric wire 1. A tubular shield terminal 6 made of a conductive metal material is attached to the end of the outer coating 5. The shield layer 4 exposed from the outer coating 5 is folded back and covered on the portion to which the shield terminal 6 is mounted. A shield sleeve 7 made of a conductive metal material is attached to the folded portion of the shield layer 4 from the tip side.

The terminal 40 to which the shielded electric wire 1 is connected is inserted from the rear end side of the shield shell 30 and is housed in the cavity 32 of the terminal holding member 31. Then, the terminal 40 is held in a state in which the tip portion thereof protrudes toward the joint portion 21 side of the housing 20. By inserting the terminal 40 into the cavity 32 and holding it, the shield terminal 6 mounted on the shielded electric wire 1 is fitted into the shield shell 30 and conducted. As a result, the shield layer 4 of the shielded electric wire 1 is conducted to the shield shell 30 via the shield terminal 6.

The interlock terminal 70 is made of a conductive metal material. An end of an electric wire 8 made of an insulated electric wire whose outer circumference of a conductor is covered with a jacket is connected to the terminal 70. The electric wire 8 is connected to an interlock circuit. The interlock circuit is closed by conducting the terminals 70 to each other and short-circuiting them, and allows energization by the shielded electric wire 1. The terminal 70 to which the electric wire 8 is connected is inserted from the rear end side of the shield shell 30 and is housed and held in the cavity 33 of the terminal holding member 31.

FIG. 5 is a perspective view of the seal member. FIG. 6 is a front view of the housing in which the seal member is mounted, as viewed from the rear end before mounting the holder.

As shown in FIG. 5, the seal member 50 is formed in a plate shape. The seal member 50 is formed of an elastic material such as rubber. The seal member 50 has a pair of seal holes 51 through which the shielded electric wire 1 is passed, and a pair of seal holes 52 through which the electric wire 8 is passed. Further, the seal member 50 is formed with a lip portion 53 protruding in the circumferential direction on the outer periphery thereof.

As shown in FIG. 6, in the seal member 50, the shield electric wire 1 is passed through the seal hole 51, and the electric wire 8 is passed through the seal hole 52. As a result, the inner peripheral surface of the seal hole 51 is in close contact with the outer peripheral surface of the shielded electric wire 1, and the inner peripheral surface of the seal hole 52 is in close contact with the outer peripheral surface of the electric wire 8. The seal member 50 is fitted into the housing 20 from the rear end side. As a result, the lip portion 53 formed on the outer periphery of the seal member 50 comes into close contact with the inner peripheral surface of the housing 20. Then, by fitting the seal member 50 through which the shielded electric wire 1 and the electric wire 8 are passed through the seal holes 51 and 52 into the housing 20, the space between the outer peripheral surface of the shielded electric wire 1 and the electric wire 8 and the inner peripheral surface of the housing 20 is formed. Be sealed.

FIG. 7 is a perspective view of the holder.
As shown in FIG. 7, the holder 60 has an end face plate portion 61 and a peripheral wall portion 62 formed on the peripheral edge of the end face plate portion 61. The holder 60 is made of resin, and the peripheral wall portion 62 is integrally formed with the end face plate portion 61. The holder 60 has a pair of insertion holes 63 through which the shielded electric wire 1 is passed and a pair of insertion holes 64 through which the electric wire 8 is passed through the end face plate portion 61. The holder 60 is formed with locking windows 65 on the peripheral wall portions 62 on both side portions thereof. In the holder 60, the shielded electric wire 1 is passed through the insertion hole 63, and the electric wire 8 is passed through the insertion hole 64. The holder 60 is attached to the housing 20 from the rear end side. As a result, the holder 60 is locked by the locking projection 23 of the housing 20 entering the locking window 65, and is maintained in a state of being mounted on the housing 20. Then, by attaching the holder 60 to the housing 20, the seal member 50 is held in a state of being fitted into the housing 20.

The connector 10 having the above structure is connected to the mating connector by joining the joining portion 21 of the housing 20 to the mating connector. As a result, the terminal 40 housed in the cavity 32 of the terminal holding member 31 in the housing 20 is connected to the terminal of the mating connector. Further, when the connector 10 is connected to the mating connector, the terminal 70 housed in the cavity 33 of the terminal holding member 31 in the housing 20 is connected to the short-circuiting conduction pin of the mating connector to cause a short circuit. As a result, the interlock circuit is closed, it is detected that the connection with the mating connector is completed, and the shielded electric wire 1 can be energized.

Next, a case where the connector 10 is used without using the interlock mechanism will be described.

FIG. 8 is a perspective view of the connector according to the present embodiment in a state where the interlock function is removed. FIG. 9 is an exploded perspective view of the connector according to the present embodiment with the interlock function removed. FIG. 10 is a cross-sectional view taken along the line CC in FIG. FIG. 11 is a perspective view of a holder that is attached when the interlock function is removed.

As shown in FIGS. 8 to 10, when the interlock function is not used, the interlock terminal 70 connected to the electric wire 8 is disconnected from the connector 10. Further, in the connector 10, a holder 60A with a pin is attached to the housing 20.

As shown in FIG. 11, in the holder 60A, the insertion hole 64 for passing the electric wire 8 is closed in the end face plate portion 61, and the closing pin 66 is integrally formed in the portion where the insertion hole 64 is closed. .. These closing pins 66 project in the mounting direction to the housing 20.

The holder 60A is attached to the rear end of the housing 20 with the shielded electric wire 1 passed through the insertion hole 63. As a result, the locking window 65 of the holder 60A is locked to the locking projection 23 of the housing 20 and is maintained in a state of being mounted on the housing 20. Then, by attaching the holder 60A to the housing 20, the seal member 50 is held in a state of being fitted into the housing 20. When the holder 60A is attached to the housing 20, the closing pin 66 of the holder 60A is inserted into the seal hole 52 of the seal member 50. As a result, the seal member 50 is sealed by closing the seal hole 52.

Here, the connector according to the reference example will be described.
FIG. 12 is a perspective view of the connector according to the reference example. FIG. 13 is an exploded perspective view of the connector according to the reference example. FIG. 14 is a cross-sectional view taken along the line DD in FIG.

As shown in FIGS. 12 to 14, the connector 100 has a tubular shield shell 130 into which a terminal 40 connected to each shielded electric wire 1 is fitted. These shield shells 130 are provided with a terminal holding member 131 for holding the terminals 40. The shield shell 130 is fitted and accommodated in each of the accommodating portions 120a formed in the housing 120. An annular rubber stopper 150 is attached to each shielded electric wire 1, and these rubber stoppers 150 are fitted into the accommodating portion 120a of the housing 120, and the outer peripheral surface of the shielded electric wire 1 and the accommodating portion of the housing 120. Seals the inner peripheral surface of 120a. Each rubber stopper 150 is held in a state of being fitted into the accommodating portion 120a of the housing 120 by a holder 160 mounted on the rear end side of the housing 120.

Since the connector 100 according to this reference example requires a plurality of rubber stoppers 150 for sealing between the outer peripheral surface of each shielded electric wire 1 and the inner peripheral surface of the accommodating portion 120a of the housing 120, the cost increases due to the increase in the number of parts. Will be invited.

On the other hand, according to the connector 10 according to the present embodiment, one sealing member 50 can seal the extraction points of the plurality of shielded electric wires 1. Further, even when the interlock function is provided, the outlet portion of the interlock electric wire 8 can be sealed by the seal member 50 that seals the outlet portion of the shielded electric wire 1. As a result, the cost can be reduced by reducing the number of parts as compared with the structure in which a rubber stopper for sealing is attached to each electric wire.

When the interlock terminal 70 among the plurality of terminals 40 and 70 is not used, the electric wire 8 extending from the removed terminal 70 is passed by attaching the holder 60A with a pin to the housing 20. The seal hole 52 that has been used is sealed by inserting the closing pin 66.

Therefore, according to the connector 10 according to the present embodiment, good sealing performance can be obtained depending on the usage state such as the presence / absence of the interlock function without causing an increase in cost, and the versatility can be enhanced.

In this way, since good sealing properties can be obtained depending on the usage state, corrosion of the shield shell 30 and the like in the housing 20 can be suppressed, and a good shielding effect by the shield layer 4 of the shielded electric wire 1 can be obtained. Can be maintained.

The present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, and the like. In addition, the material, shape, dimensions, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

Here, the features of the above-described connector embodiments according to the present invention are briefly summarized and listed below in [1] to [3], respectively.
[1] The housing (20) joined to the mating connector and
A plurality of terminals (40, 70) connected to the ends of a plurality of electric wires (shielded electric wire 1, electric wire 8) and housed in the housing (20).
The electric wire (shielded electric wire 1, electric wire 8) drawn from the housing (20) has a plurality of sealing holes (51, 52) into which the electric wire (shielded electric wire 1, electric wire 8) is inserted, and is fitted into the housing (20) to be fitted into the electric wire (shielded electric wire). 1. A sealing member (50) that seals between the outer peripheral surface of the electric wire 8) and the inner peripheral surface of the housing (20).
The seal member (50) has a plurality of insertion holes (63, 64) through which the electric wires (shielded electric wires 1, electric wires 8) drawn from the housing (20) are inserted, and is mounted on the housing (20). Holder (60) for holding and
With
With respect to the housing (20) from which at least one of the terminals (40, 70) has been removed.
Instead of the holder (60), a holder with a pin (60A) having a closing pin (66) inserted into a seal hole (52) through which an electric wire (8) extending from the removed terminal (70) was passed. ) Is attached to the connector.
[2] The terminals (40, 70) have interlock terminals (70) in which the housing (20) is joined to the mating connector and short-circuited by a conduction pin provided on the mating connector. The connector according to [1], which is included.
[3] A shielded electric wire (1) in which an inner coating (3), a shield layer (4), and an outer coating (5) are provided in this order around the conductor (2) is connected to the terminals (40, 70). Includes shield terminal (40)
A shield shell (30) that covers at least the shield terminal (40) is provided in the housing (20), and the shield layer (4) of the shield electric wire (1) is conducted to the shield shell (30). The connector according to [1] or [2].

1: Shielded electric wire (electric wire)
2: Conductor 3: Inner coating 4: Shield layer 5: Outer coating 8: Electric wire 10: Connector 20: Housing 30: Shield shell 40, 70: Terminal 50: Seal member 51, 52: Seal hole 60, 60A: Holder 63, 64: Insertion hole 66: Closing pin

Claims (3)

The housing that is joined to the mating connector and
A plurality of terminals connected to the ends of a plurality of electric wires and housed in the housing, and
A sealing member having a plurality of sealing holes through which the electric wires drawn from the housing are inserted and fitted into the housing to seal between the outer peripheral surface of the electric wires and the inner peripheral surface of the housing.
A holder having a plurality of insertion holes through which the electric wire drawn from the housing is inserted and attached to the housing to hold the seal member.
With
The plurality of terminals include a pair of interlocking terminals in which the housing is joined to the mating connector and short-circuited by a conduction pin provided on the mating connector.
With respect to the housing from which the pair of interlock terminals have been removed,
Instead of the holder, said pair of pins with a holder having a pair of closure pin pair of the electric wire is inserted into the pair of the seal hole has been passed extending from the terminal for interlocks removed is attached A connector characterized by being made. The plurality of terminals are composed of the pair of interlock terminals and a pair of first terminals connected to the pair of electric wires that are permitted to be energized by short-circuiting the pair of interlock terminals. ,
The pair of first terminals are housed in the housing so as to be spaced apart in the width direction, and the pair of interlock terminals are housed in the housing between the pair of first terminals. The connector according to claim 1, wherein the connectors are housed so as to be arranged in the vertical direction. It said first terminal, internal coating around the conductor shield layer and outer coating are shielded terminal shield wire provided are connected in order,
The connector according to claim 2 , wherein a shield shell that covers at least the shield terminal is provided in the housing, and the shield layer of the shield electric wire is conducted to the shield shell.

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