CN114792905A - Wire harness - Google Patents
Wire harness Download PDFInfo
- Publication number
- CN114792905A CN114792905A CN202210008232.6A CN202210008232A CN114792905A CN 114792905 A CN114792905 A CN 114792905A CN 202210008232 A CN202210008232 A CN 202210008232A CN 114792905 A CN114792905 A CN 114792905A
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- CN
- China
- Prior art keywords
- wire
- electric wire
- housing
- lead
- terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
- H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
- H01R13/6593—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable the shield being composed of different pieces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/56—Means for preventing chafing or fracture of flexible leads at outlet from coupling part
- H01R13/567—Traverse cable outlet or wire connection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/621—Bolt, set screw or screw clamp
- H01R13/6215—Bolt, set screw or screw clamp using one or more bolts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2103/00—Two poles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Insulated Conductors (AREA)
Abstract
The present invention suppresses water that enters the shield case from reaching the knitted component. A wire harness is provided with an electric wire (We) and a connector (1), and the connector is provided with: a terminal fitting (10) electrically connected to the wire end; a housing (20) for accommodating the electric wire and the terminal fitting in an inner accommodating chamber (20c) and leading the electric wire out from a leading-out port (20d) of the accommodating chamber to the outside; a first shield member (31) covering the housing; a second shield member which is assembled in a state that the end parts are in surface contact, and which accommodates a first lead-out part (We1) of the electric wire in an electric wire accommodation chamber (32b) arranged inside a cylinder part (32a) on the side of the lead-out direction of the electric wire from the end parts and leads the electric wire out of a lead-out opening (32c) of the electric wire accommodation chamber; a braided member (35) which covers the cylindrical portion of the second shield member in a close contact state and covers the second lead-out portion (We2) of the electric wire; and a woven side sealing member (45) for filling a gap between the inner peripheral wall of the wire housing chamber and the first lead-out portion.
Description
Technical Field
The present invention relates to a wire harness.
Background
Conventionally, there is known a wire harness with a connector configured such that a connector is assembled to a terminal of a wire. In addition, as this connector, a connector configured as a shield connector is known in order to suppress noise from entering the wires and the terminal fittings. In the connector, a terminal fitting is electrically connected to a terminal of an electric wire in a housing, and the electric wire is led out of the housing. In this connector, the housing is covered from the outside by a shield cover in which a plurality of cover members are combined. Such a wire harness is disclosed in, for example, patent documents 1 to 3 listed below. In order to suppress noise from entering the lead-out portion of the wire led out from the connector in the wire harness, for example, as described in patent documents 2 and 3 below, a tubular braided member braided with a metal material to form a mesh is covered on the lead-out portion of the wire and the shield cover.
Documents of the prior art
Patent document
Patent document 1: japanese unexamined patent publication No. 2014-107152
Patent document 2: japanese patent laid-open publication No. 2016 (Japanese patent laid-open publication) 2016 (E) -192359
Patent document 3: japanese patent laid-open publication No. 2018-41554
Disclosure of Invention
Technical problems to be solved by the invention
However, in the wire harness, when the shield case is formed of a plurality of shield cover members combined with each other as in the conventional art, since the mating surfaces which are brought into surface contact with each other are formed between the shield cover members, if water enters the mating surfaces, the water may flow into the shield case. However, in the conventional connector, since the housing is provided with the seal member that fills the gap between the housing and the electric wire, the seal member prevents water entering the shield cover from reaching the terminal fitting. On the other hand, the existing connector has the following possibilities: the water in the shield case flows out of the shield case while flowing through the lead-out portion of the electric wire, for example, and the water thus drained out reaches the braided member.
Therefore, an object of the present invention is to provide a wire harness capable of suppressing water that has entered a shield cover from reaching a braided member.
Means for solving the problems
In order to achieve the above object, the present invention includes: an electric wire; and a connector assembled to a terminal of the electric wire, the connector including: a terminal fitting electrically connected directly or indirectly with the terminal end of the electric wire; an insulating housing that houses the electric wire and the terminal fitting in a housing chamber inside thereof and that draws the electric wire outward from a drawing port of the housing chamber; a conductive first shield member covering the housing; a conductive second shield member which is assembled to the first shield member in a state in which an end surface of the second shield member is in contact with the first shield member, and which accommodates a first lead-out portion of the electric wire, which is led out from the accommodation chamber, in the electric wire accommodation chamber disposed inside the cylindrical portion on the side of the end in the lead-out direction of the electric wire, and which leads out the electric wire from a lead-out opening of the electric wire accommodation chamber to the outside; a conductive braided member braided in a mesh tubular shape, covering the tubular portion of the second shield member in a close contact state, and covering a second lead-out portion of the electric wire led out from the electric wire accommodation chamber; and a weaving side seal member that fills a gap between an inner peripheral wall of the electric wire accommodation chamber and the first lead-out portion of the electric wire.
Effects of the invention
Even if water or dust that has entered a shield case (first shield cover member, second shield cover member) having a split structure enters a wire housing chamber in a cylindrical portion of the second shield cover member, a braided side seal member disposed in the wire housing chamber can prevent water or the like from flowing out to the braided member side. Therefore, the wire harness can suppress a decrease in durability of the braided member due to water entering the shield shell.
Drawings
Fig. 1 is a perspective view showing a wire harness according to an embodiment.
Fig. 2 is a perspective view of the wire harness of the embodiment viewed from the shield cover side.
Fig. 3 is a cross-sectional view taken along line X-X of fig. 1.
Fig. 4 is an exploded perspective view of the wire harness according to the embodiment partially removed.
Fig. 5 is an exploded perspective view of the housing.
Fig. 6 is an exploded perspective view of the housing as viewed from another angle.
Fig. 7 is a perspective view showing the first wire holder.
Fig. 8 is an exploded perspective view of the first wire holder.
Fig. 9 is a perspective view showing the shield case.
Fig. 10 is an exploded perspective view of the shield case.
Fig. 11 is a perspective view showing the second wire holder.
Fig. 12 is an exploded perspective view of the second wire holder.
Description of the symbols
1 connector
10 terminal fitting
20 casing
20c accommodating chamber
20d outlet
30 shield cover
31 first shield member
32 second shield part
32a cylinder part
32b electric wire accommodation chamber
32c outlet
32d Ring portion (locking portion)
35 knitted component
43 terminal side seal member
45-knit side seal member
70 rubber sleeve
80 second wire holder (wire holder)
80c projection
We electric wire
We1 first lead-out part
Second lead-out part of We2
WH wire harness
Detailed Description
Hereinafter, embodiments of the wire harness according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.
[ embodiment ]
One embodiment of the wire harness according to the present invention will be described with reference to fig. 1 to 12.
A symbol WH in fig. 1 to 4 indicates a wire harness according to the present embodiment. The wire harness WH is a so-called connector-equipped electric wire including an electric wire We and a connector 1 assembled to a terminal of the electric wire We. The wire harness WH shown here has the connector 1 having a plurality of electrodes, and has the number of electric wires We corresponding to the number of electrodes. In this example, the wire harness WH includes 2 wires We and 2 connectors 1 having the number of electrodes.
The connector 1 is inserted and fitted into a mating fitting portion (not shown) from a distal end thereof, and thereby electrically connected to a mating terminal fitting (not shown). For example, the connector 1 shown here is configured such that a fitting portion 20a of a housing 20 described later is inserted and fitted inside a hole-shaped mating fitting portion having an inner peripheral wall surface. The connector 1 is configured such that the fitting portion 20a is inserted into and removed from the mating fitting portion along the hole axis direction of the hole-shaped mating fitting portion. The mating fitting portion is formed, for example, so that an orthogonal cross section orthogonal to the hole axis direction is rectangular. The mating-side fitting portion may be formed in a cylindrical shape, and the fitting portion 20a may be inserted and fitted into an inner space thereof.
For example, the connector 1 is electrically connected to a mating terminal fitting of a mating apparatus (not shown) to electrically connect the mating apparatus to a target apparatus (not shown) of the electric wire We. The mating-side device includes a metal housing, and a through hole formed in a wall of the housing is used as a mating-side fitting portion. The mating-side device includes a terminal block or a mating-side connector inside the housing. The mating terminal fitting is a member provided in the terminal block or the mating connector. Therefore, the fitting portion 20a of the connector 1 is inserted and fitted inside the mating fitting portion, and is electrically connected to the mating terminal fitting of the terminal block or the mating connector inside the housing.
Hereinafter, when it is not particularly described but merely described as the insertion direction, the insertion direction indicates the insertion direction of the fitting portion 20a of the connector 1 with respect to the mating fitting portion. In addition, when not particularly described but only described as the pulling direction, the pulling direction indicates the pulling direction of the fitting portion 20a of the connector 1 with respect to the mating fitting portion. Note that, unless otherwise specified, the insertion/removal direction is simply referred to as the insertion/removal direction, and this insertion/removal direction indicates the insertion/removal direction of the mating portion 20a of the connector 1 with respect to the mating-side mating portion.
The connector 1 includes a terminal fitting 10, an insulating housing 20 accommodating the electric wire We and the terminal fitting 10, and a conductive shield cover 30 (fig. 1, 3, and 4) for reducing noise.
The terminal fitting 10 is formed of a conductive material such as metal. For example, the terminal fitting 10 is formed into a predetermined shape by press forming such as bending or cutting a metal plate as a base material.
The terminal fitting 10 has a terminal connecting portion 11 (fig. 1, 3, and 4) physically and electrically connected to a mating terminal connecting portion of a mating terminal fitting. For example, the terminal connection portion 11 and the mating terminal connection portion are fitted and connected to each other with the fitting portion 20a and the mating fitting portion fitted and inserted. One of the terminal connecting portion 11 and the counterpart terminal connecting portion of this form is formed in a female terminal shape, and the other is formed in a male terminal shape. For example, the terminal connecting portion 11 and the mating terminal connecting portion may be screwed to each other. In this example, the terminal connection portion 11 is formed in a cylindrical female terminal shape, and the counterpart side terminal connection portion is formed in a shaft-like male terminal shape that is fitted into the inside of the terminal connection portion 11. In the terminal fitting 10, the axial direction of the terminal connecting portion 11 is the insertion/removal direction. An elastically deformable contact member (not shown) is assembled inside the terminal connecting portion 11 of this example.
The terminal fitting 10 is electrically connected to the end of the electric wire We directly or indirectly. For example, the terminal fitting 10 is directly electrically connected to the tip end of the electric wire We by providing the electric wire connecting portion 12 physically and electrically connected to the tip end of the electric wire We (fig. 3 and 4). For example, the terminal fitting 10 is indirectly electrically connected to the end of the electric wire We by interposing a relay terminal (not shown) between the terminal fitting and the end of the electric wire We. The terminal fitting 10 shown here has the electric wire connection portion 12, and is directly electrically connected to the tip end of the electric wire We.
The wire connecting portion 12 is physically and electrically connected to the electric wire We by, for example, crimping or welding to the exposed core wire at the end of the electric wire We. The wire connection portion 12 shown here has 2 barrel pieces tightly crimped to the exposed core wire. The electric wire We is led out from the electric wire connection portion 12.
The terminal fitting 10 is formed in a linear shape in which the cylindrical axis direction of the terminal connecting portion 11 is the same as the lead-out direction of the electric wire We in the electric wire connecting portion 12. When the linear terminal fitting 10 is used, the electric wire We drawn out from the electric wire connection portion 12 may be directly extended in the drawing direction and stored in the housing 20, or the electric wire We drawn out from the electric wire connection portion 12 may be bent in the middle and stored in the housing 20. In this example, the terminal fitting 10 having a straight shape and the electric wire We bent by 90 degrees after being drawn from the electric wire connection portion 12 are accommodated in the housing 20 (fig. 3 and 4).
The terminal fitting 10 may have a cross shape in which the cylindrical axis direction of the terminal connecting portion 11 and the direction in which the electric wire We is drawn out from the electric wire connecting portion 12 intersect (e.g., intersect orthogonally). In this case, the electric wire We drawn out from the electric wire connection portion 12 is directly extended in the drawing direction.
The connector 1 includes a plurality of pairs of combinations of the terminal fittings 10 and the electric wires We. Here, 2 sets of the combinations are provided (fig. 4). In the connector 1, 2 terminal fittings 10 are arranged in a direction orthogonal to the insertion and extraction direction. In the connector 1, 2 wires We are arranged in parallel in the orthogonal direction.
The case 20 is made of an insulating material such as synthetic resin.
The housing 20 has a fitting portion 20a (fig. 1 to 6) to be fitted into the mating fitting portion. The fitting portion 20a shown here is inserted and fitted inside the hole-shaped mating fitting portion in the insertion direction, and is pulled out from the inside of the mating fitting portion in the pull-out direction opposite thereto. The fitting portion 20a is formed in a cylindrical shape having a direction of insertion and extraction (insertion direction, insertion and extraction direction) with respect to the mating fitting portion as a cylindrical axis direction. The fitting portion 20a shown here is formed in a square tube shape.
The connector 1 includes an annular seal member 41 (fig. 1 to 4) that fills an annular gap between the fitting portion 20a and the mating fitting portion and prevents water and dust therebetween. The seal member 41 is formed of an elastic member such as synthetic rubber. The seal member 41 is assembled to the outer peripheral surface of the fitting portion 20 a.
The housing 20 has a flange-shaped flange portion 20b (fig. 1, 3, 5, and 6) outside the outer peripheral surface of the fitting portion 20 a. The flange portion 20b has an opposing wall surface that is disposed to face the wall surface of the peripheral edge of the mating-side fitting portion with a gap therebetween when the fitting portion 20a and the mating-side fitting portion are in the fitted state. The connector 1 includes an annular seal member 42 (fig. 1 and 3) for filling a gap between the opposing wall surface of the flange portion 20b and the wall surface of the peripheral edge of the mating fitting portion and preventing water and dust therebetween. The seal member 42 is formed of an elastic member such as synthetic rubber. The seal member 42 is fitted in a protruding state in an annular groove formed in the facing wall surface of the flange portion 20 b.
In the housing 20, the terminal fitting 10 is accommodated inside the fitting portion 20 a.
The housing 20 has: an inner housing chamber 20c that houses the electric wire We and the terminal fitting 10; and a drawing port 20d for drawing the electric wire We from the housing chamber 20c to the outside (fig. 3, 5, and 6). That is, in the housing 20, the electric wire We and the terminal fitting 10 are accommodated in the inner accommodation chamber 20c, and the electric wire We is drawn out from the drawing port 20d of the accommodation chamber 20c to the outside.
The housing chamber 20c has: terminal housing portion 20c 1 Which accommodates the terminal fitting 10; and an electric wire housing part 20c 2 Which accommodates the electric wire We (fig. 3, 5, and 6) led out from the electric wire connecting portion 12 of the terminal fitting 10. In the housing 20, the space inside the cylindrical fitting portion 20a is used as a terminal accommodating portion 20c 1 . In the terminal accommodating portion 20c 1 For example, a chamber for each terminal fitting 10 is divided by a partition wall or the like. In addition, the electric wire housing part 20c shown here 2 The electric wire We is formed to be accommodated along a crossing direction (orthogonal direction in this example) crossing the inserting and extracting direction. In the wire housing part 20c 2 For example, a compartment for each electric wire We is divided by a partition wall or the like.
The connector 1 includes a terminal holding member 50, and the terminal holding member 50 is accommodated in the terminal accommodating portion 20c of the accommodating chamber 20c 1 And in the terminal accommodating portion 20c 1 While holding the terminal fitting 10 (fig. 1 to 4). The terminal holding member 50 is made of an insulating material such as a synthetic resin. The terminal holding member 50 accommodates and holds the terminal fitting 10 inside in a state in which the mating terminal connecting portion can be inserted and removed, and the terminal holding member 50 is held on the inner peripheral surface of the fitting portion 20 a.
The terminal holding member 50 may be provided for each terminal fitting 10, or may be provided as a member capable of holding a plurality of terminal fittings 10. The terminal holding member 50 shown here is provided for each terminal fitting 10. The terminal holding member 50 is held on the inner peripheral surface of the fitting portion 20a by a lock mechanism (not shown) using a claw portion or the like hooked to the fitting portion 20a, for example.
The connector 1 further includes a sealing member (hereinafter, referred to as "terminal-side sealing member") 43 (fig. 3 and 4) that fills a gap between the inner peripheral wall of the housing chamber 20c and the electric wire We and prevents water and dust therebetween. The terminal-side sealing member 43 is formed of an elastic member such as synthetic rubber.
The terminal-side sealing member 43 may be provided for each electric wire We, or may fill a gap between the inner peripheral wall of the housing chamber 20c and the plurality of electric wires We. The terminal-side sealing member 43 shown here is formed to accommodate the electric wire accommodating portion 20c of the chamber 20c 2 And 2 electric wires We are buried in the gap between the inner peripheral wall of (b).
In addition, here, the electric wire housing part 20c 2 Has a space part 20c formed in an oval shape 21 In the space part 20c 21 A terminal-side sealing member 43 is disposed (fig. 3, 5, and 6). Therefore, the terminal-side sealing member 43 shown here is formed in an oblong shape, and has a circular through hole 43a (fig. 4) for each electric wire We. In the terminal-side seal member 43, a coaxial annular lip (hereinafter referred to as "outer peripheral lip") is formed on the outer peripheral surface, and a coaxial annular lip (hereinafter referred to as "inner peripheral lip") is formed on the inner peripheral surface of the through hole 43 a. The terminal side seal member 43 is formed by closely adhering the outer peripheral lip to the wire housing portion 20c 2 Middle oval space part 20c 21 And the inner peripheral lip is brought into close contact with the outer peripheral surface of the electric wire We, whereby the entry of the electric wire into the electric wire housing 20c of the housing chamber 20c from the outlet 20d is suppressed 2 The water and dust reach the terminal fitting 10. Therefore, in the connector 1, it is possible to suppress a decrease in the durability of the terminal fitting 10 due to water and a decrease in the conductive performance of the terminal fitting 10 due to dust.
The connector 1 further includes a wire holder (hereinafter, referred to as "first wire holder") 60 (fig. 3, 4, 7, and 8) that holds the electric wire We in the housing chamber 20 c. The first wire holder 60 is formed of an insulating material such as a synthetic resin. The first wire holder 60 may be provided for each of the electric wires We, or may be provided as a single member capable of holding a plurality of electric wires We. The first wire holder 60 shown here is provided as a single member capable of holding a plurality of (2 in this example) electric wires We. In addition, the first wire holder 60 shown here is in the wire housing 20c of the housing chamber 20c 2 The electric wire We is held at a position where it is drawn out from the electric wire connection portion 12 of the terminal fitting 10 and bent.
The first wire holder 60 has a cylindrical wire insertion portion 60a (fig. 3 and 7) through which the cylindrical wire We is inserted. For example, the first wire holder 60 may have the outer diameter of the wire insertion portion 60a smaller than the outer diameter of the wire We to generate a holding force from the inner circumferential surface of the wire insertion portion 60a to the outer circumferential surface of the wire We. However, the first wire holder 60 shown here has the outer diameter of the wire insertion portion 60a larger than the outer diameter of the electric wire We. The first wire holder 60 has a projecting rib 60b, and the rib 60b applies a pressing force to the outer peripheral surface of the wire We to generate a holding force to the wire We by the pressing force (fig. 7 and 8). The rib 60b protrudes from the inner peripheral surface of the wire insertion portion 60 a.
The first wire holder 60 shown here includes a first wire holding member 61 and a second wire holding member 62 (fig. 3, 4, 7, and 8) that clamp the wire We. The first and second electric wire holding members 61 and 62 clamp the electric wire We in a state of being assembled with each other. Therefore, the first wire holder 60 includes a first locking mechanism 63 and a second locking mechanism 64 (fig. 7 and 8) between the first wire holding member 61 and the second wire holding member 62 to maintain them in an assembled state. In this example, the same member is used for the first wire holding member 61 and the second wire holding member 62.
The first wire holding member 61 and the second wire holding member 62 have a semi-cylindrical space portion 65 (fig. 8) having a larger diameter than the outer diameter of the electric wire We. The first wire holding member 61 and the second wire holding member 62 form a cylindrical space portion that joins the respective space portions 65 together in an assembled state. Here, the columnar space is used as the electric wire insertion portion 60 a. Therefore, the first wire holding member 61 and the second wire holding member 62 are provided with the ribs 60b on the inner peripheral surface of the space portion 65 thereof. In the space portion 65 shown here, 2 ribs 60b arranged at intervals in the axial direction are provided at one end in the circumferential direction thereof, and 3 ribs 60b arranged at intervals in the axial direction are provided at the other end in the circumferential direction thereof. In the first and second electric wire holding members 61 and 62 shown here, a space portion 65 and 5 ribs 60b provided in the space portion 65 are formed for each electric wire We.
The first locking mechanisms 63 are provided in the axial direction of the wire insertion portion 60a in an amount of 2 at each of both ends of the first wire holding member 61 and the second wire holding member 62 in an assembled state. On the other hand, the second lock mechanism 64 is provided at each of both ends of the first wire holding member 61 and the second wire holding member 62 in an assembled state in a perpendicular direction (i.e., an arrangement direction of the 2 wire insertion portions 60 a) perpendicular to the axial direction.
One of the first locking mechanisms 63 at both ends includes: a first locking body 63a provided to the first wire holding member 61; and a second locking body 63b provided on the second wire holding member 62, for locking the movement of the first wire holding member 61 and the second wire holding member 62 in the direction opposite to the assembling direction between the second locking body 63b and the first locking body 63a when the first wire holding member 61 and the second wire holding member 62 are in the assembled state (fig. 8). The other first locking mechanism 63 at both ends includes: a first locking body 63a provided to the second wire holding member 62; and a second locking body 63b provided to the first wire holding member 61, for locking the movement of the first wire holding member 61 and the second wire holding member 62 in the direction opposite to the assembling direction between the second locking body 63b and the first locking body 63a when the first wire holding member 61 and the second wire holding member 62 are in the assembled state (fig. 8).
The first locking body 63a is formed as a claw-like protrusion body that protrudes from the first wire holding member 61 (the second wire holding member 62) so as to face the axial direction of the wire insertion portion 60 a. On the other hand, the second locking body 63b includes: claw-shaped second engaging portion 63b 1 A first wire holding member 61 and a second wire holding member 62 which are engaged with the first engaging body 63a having a claw shape when the first wire holding member 61 and the second wire holding member 62 are assembled, and which move in a direction opposite to the assembling direction; and a flexible cantilever-shaped flexible piece 63b having flexibility 2 And has the second locking portion 63b at the free end 1 And a fixed end is provided to the second wire holding member 62 (first wire holding member 61) (fig. 8). FlexibilitySheet portion 63b 2 The following elastic deformation is possible: the second locking portion 63b is engaged with the first wire holding member 61 and the second wire holding member 62 when the first wire holding member and the second wire holding member are assembled together 1 Can pass over the first locking body 63a, and after passing over, the first locking body 63a and the second locking portion 63b can be moved 1 Are arranged oppositely.
One second lock mechanism 64 includes: a first locking body 64a provided to the first wire holding member 61; and a second locking body 64b that is provided to the second wire holding member 62 and locks the movement of the first wire holding member 61 and the second wire holding member 62 in the direction opposite to the assembling direction between the second locking body 64b and the first locking body 64a when the first wire holding member 61 and the second wire holding member 62 are in the assembled state (fig. 8). The other second lock mechanism 64 includes: a first locking body 64a provided on the second wire holding member 62; and a second locking body 64b that is provided to the first wire holding member 61 and locks the movement of the first wire holding member 61 and the second wire holding member 62 in the direction opposite to the assembling direction between the second locking body 64b and the first locking body 64a when the first wire holding member 61 and the second wire holding member 62 are in the assembled state (fig. 8).
The first locking body 64a is formed as a claw-like protrusion body that protrudes from the first wire holding member 61 (the second wire holding member 62) so as to face the arrangement direction of the 2 wire insertion portions 60 a. On the other hand, the second locking body 64b includes: second engagement portion 64b having a sheet shape 1 When the first wire holding member 61 and the second wire holding member 62 are assembled, the second locking portion 64b is formed 1 Movement in the direction opposite to the assembling direction, in which the first wire holding member 61 and the second wire holding member 62 are locked with the first locking body 64a in the shape of a claw; and flexible 2 cantilever-like flexible sheet portions 64b 2 The second locking portion 64b is connected to the free end side 1 And the fixed end is set to the second wire holding member 62 (the first wire holding member 61) (fig. 8). Flexible sheet part 64b 2 The following elastic deformation is possible: the second locking portion 64b is used when the first wire holding member 61 and the second wire holding member 62 are assembled 1 Can pass over the first locking body 64a, and after passing over, can cause the first locking body 64a and the second locking portion 64b to move 1 Are arranged oppositely.
The housing 20 has a holding portion 20g (fig. 3, 5, and 6) that holds the first wire holder 60. At least one holding portion 20g is provided in the housing 20. In the connector 1, since the electric wire We is held by the first electric wire holder 60 and the first electric wire holder 60 is held by the holding portion 20g of the housing 20, even if vibration generated at the lead-out portion of the electric wire We during vehicle running is transmitted as vibration, propagation of the vibration to the terminal fitting 10 can be suppressed by the first electric wire holder 60 and the holding portion 20 g. In the connector 1, since the first wire holder 60 is arranged in line with the terminal-side sealing member 43 in the axial direction of the electric wire We, vibration of the electric wire We in the housing chamber 20c is also suppressed due to the effect of suppressing propagation of vibration achieved by the first wire holder 60 and the holding portion 20 g. Therefore, in the connector 1, since the terminal-side sealing member 43 can be prevented from being crushed due to the wobbling of the electric wire We, a gap is less likely to be formed between the electric wire We and the terminal-side sealing member 43, and the waterproof performance and the dustproof performance of the terminal-side sealing member 43 can be improved.
Here, the first wire holder 60 may be disposed on the terminal fitting 10 side of the terminal-side sealing member 43, or may be disposed on the drawing port 20d side of the housing chamber 20c of the terminal-side sealing member 43.
In the connector 1, the first wire holder 60 is arranged on the terminal fitting 10 side of the terminal-side sealing member 43 (fig. 3). Thus, in the connector 1, the vibration of the electric wire We transmitted from the lead-out portion is first absorbed by the terminal-side sealing member 43, and then, propagation of the remaining vibration component, which is not completely absorbed therein, to the terminal fitting 10 side is suppressed by the first electric wire holder 60 and the holding portion 20 g. Therefore, in the connector 1, since the terminal-side sealing member 43 can reduce the vibration to be suppressed by the first wire holder 60 and the holding portion 20g, the effect of improving the propagation of the vibration to the terminal fitting 10 can be suppressed.
On the other hand, in the connector 1, by disposing the first wire holder 60 on the side of the drawing port 20d of the housing chamber 20c with respect to the terminal-side sealing member 43, even when the propagation of the vibration of the wire We transmitted from the drawing portion to the terminal fitting 10 side cannot be completely suppressed by the first wire holder 60 and the holding portion 20g, the vibration reduced by the first wire holder 60 and the holding portion 20g can be absorbed by the terminal-side sealing member 43 before the vibration is transmitted to the terminal fitting 10. Therefore, in the connector 1, even if vibration cannot be suppressed by the first wire holder 60 and the holding portion 20g, propagation of vibration to the terminal fitting 10 can be suppressed.
Specifically, the casing 20 shown here includes a casing main body 21, a cover member 22, and a front bracket 23 (fig. 3 to 6).
The case main body 21 is provided with: a first space portion 21a that accommodates the electric wire We and the terminal fitting 10; and a first opening 21b through which the electric wire We and the terminal fitting 10 are inserted into the first space portion 21a (fig. 5). The first space portion 21a is divided into chambers for each combination of the electric wire We and the terminal fitting 10 by, for example, a partition wall or the like as described earlier. The housing main body 21 is formed with a semicircular opening 21a through which the electric wire We is led out from the first space 21a 1 (FIG. 5). The opening 21a 1 Is provided for each electric wire We. The housing main body 21 is provided with a first seal accommodating portion 21c (fig. 5) for accommodating the terminal-side seal member 43. The housing main body 21 is formed with the fitting portion 20a and the flange portion 20b (fig. 5 and 6) described above.
The lid member 22 is provided with: a second space portion 22a that accommodates the electric wire We and the terminal fitting 10; and a second opening 22b into which the electric wire We and the terminal fitting 10 are inserted into the second space 22a (fig. 6). The second space portion 22a is divided into chambers for each electric wire We by, for example, a partition wall or the like as described earlier. The cover member 22 is formed with a semicircular opening 22a through which the electric wire We is led out from the second space portion 22a 1 (FIG. 6). The opening 22a 1 Is provided for each electric wire We. The cover member 22 is provided with a second seal accommodating member for accommodating the terminal-side seal member 43And a portion 22c (fig. 6).
In the case 20, the case main body 21 and the cover member 22 are assembled, and the first opening portion 21b and the second opening portion 22b are joined together to form the housing chamber 20c including the first space portion 21a and the second space portion 22 a. In the case 20, the case main body 21 and the cover member 22 are assembled to form the openings 21a 1 、22a 1 The outlet 20d is formed. In the case 20, the case main body 21 and the cover member 22 are assembled to form the wire housing portion 20c including the first seal housing portion 21c and the second seal housing portion 22c 2 Space part 20c 21 。
In the case 20, a holding portion 20g for the first wire holder 60 is provided in at least one of the case main body 21 and the cover member 22. Here, the holding portion 20g is provided in both the case main body 21 and the cover member 22 (fig. 3, 5, and 6). The holding portion 20g of the housing main body 21 is a space portion that accommodates the first wire holding member 61, and holds the first wire holding member 61 by suppressing relative movement of the first wire holding member 61 in the space portion. The holding portion 20g of the housing main body 21 shown here is formed as a chamber that can surround the outer wall of the first wire holding member 61 without blocking the space portion 65. The holding portion 20g of the cover member 22 is a space portion that accommodates the second wire holding member 62, and holds the second wire holding member 62 by suppressing relative movement of the second wire holding member 62 in the space portion. The holding portion 20g of the cover member 22 shown here is formed as a chamber that can surround the outer wall of the second wire holding member 62 without blocking the space portion 65.
In the case 20, the case body 21 and the cover member 22 are assembled, and the first wire holder 60 is sandwiched between the inner wall surfaces of the holding portions 20g of the case body 21 and the cover member 22 (fig. 3). Therefore, in the housing 20, the first wire holder 60 is sandwiched by the housing main body 21 and the cover member 22 in the assembled state, thereby raising the wire housing portion 20c of the housing chamber 20c 2 The holding force of the first wire holder 60. This improves the effect of suppressing the propagation of vibration to the terminal fitting 10 in the connector 1.
The housing 20 further includes a lock mechanism (hereinafter, referred to as "cover lock mechanism") 24 (fig. 3, 5, and 6) for maintaining the assembled state of the housing main body 21 and the cover member 22 assembled with each other. In the case 20, a plurality of cover locking mechanisms 24 are provided on each outer peripheral wall between the case main body 21 and the cover member 22.
The lid lock mechanism 24 includes: a first locking body 24a provided in the housing main body 21; and a second locking body 24b that is provided to the cover member 22 and locks movement of the housing body 21 and the cover member 22 in a direction opposite to the assembly direction between the second locking body 24b and the first locking body 24a when the housing body 21 and the cover member 22 are in the assembled state (fig. 3, 5, and 6).
The first locking body 24a is formed as a claw-shaped protrusion protruding from the outer peripheral wall of the housing main body 21 (fig. 3, 5, and 6). On the other hand, the second locking body 24b includes: second engagement portion 24b having a sheet shape 1 When the case main body 21 and the cover member 22 are assembled, the second locking portion 24b is engaged 1 Movement in the direction opposite to the assembly direction, in which the housing body 21 and the lid member 22 are locked between the first locking bodies 24a in the claw shape; and 2 flexible arm-like flexible sheet portions 24b having flexibility 2 And the second locking portion 24b is connected to the free end side 1 And the fixed end is provided to the cover member 22 (fig. 3, 5, and 6). Flexible sheet portion 24b 2 The following elastic deformation is possible: the second locking portion 24b is used when the case body 21 and the cover member 22 are assembled 1 Can get over the first locking body 24a and after getting over, can make the first locking body 24a and the second locking part 24b 1 Are arranged oppositely.
The housing 20 is provided with a sealing member (hereinafter referred to as a "cover sealing member") 44, and the sealing member 44 prevents water and dust from entering between the assembled housing main body 21 and cover member 22 and prevents them from being waterproofed and dusted (fig. 3 and 4). The lid seal member 44 is formed of an elastic member such as synthetic rubber. The cover seal member 44 shown here is formed in a square ring shape and is sandwiched between the case main body 21 and the cover member 22. In the connector 1, the cap seal member 44 is formed as a single member integrated with the terminal-side seal member 43 (fig. 4).
The front bracket 23 is formed in a square tubular shape covering the outer peripheral surface of the fitting portion 20a of the housing main body 21, and is fitted to the fitting portion 20 a. The housing 20 includes a lock mechanism (hereinafter, referred to as "bracket lock mechanism") 25 (fig. 5 and 6) for maintaining the assembled state of the housing main body 21 and the front bracket 23 which are assembled to each other. In the housing 20, a plurality of holder lock mechanisms 25 are provided between the inner peripheral surface of the fitting portion 20a and the front holder 23.
The holder lock mechanism 25 includes: a first locking body 25a provided on an inner peripheral surface of the fitting portion 20a of the housing body 21; and a second locking body 25b provided on the front bracket 23 in a state of being arranged to face an inner peripheral surface of the fitting portion 20a, and locking movement of the fitting portion 20a and the front bracket 23 in a direction opposite to an assembling direction between the second locking body 25b and the first locking body 25a when the fitting portion 20a and the front bracket 23 are in an assembled state (fig. 5 and 6).
The first locking body 25a is formed as a claw-shaped protrusion body protruding from the inner peripheral surface of the fitting portion 20a (fig. 6). On the other hand, the second locking body 25b includes: second engagement portion 25b in the form of a sheet 1 When the fitting portion 20a and the front bracket 23 are assembled, the second locking portion 25b is engaged 1 Movement in the direction opposite to the assembly direction, which engages the fitting portion 20a and the front bracket 23 with the first engaging body 25a in the shape of a claw; and flexible 2 cantilever-like flexible sheet portions 25b 2 A free end side of which is connected with the second locking part 25b 1 And the fixing end is provided to the front bracket 23 (fig. 5 and 6). Flexible piece portion 25b 2 The following elastic deformation is possible: the second locking portion 25b is engaged with the front bracket 23 when the fitting portion 20a is assembled with the front bracket 23 1 Can pass over the first locking body 25a, and after passing over, can cause the first locking body 25a and the second locking portion 25b to move 1 Are disposed in an opposed manner.
The shield cover 30 suppresses the intrusion of external noise to the inside, and covers the housing 20 so that the noise does not affect the electric wire We and the terminal fitting 10 in the housing 20. Therefore, the shield case 30 is formed of a conductive material such as metal.
The shield 30 includes a first shield member 31 and a second shield member 32 (fig. 1 to 4, 9, and 10) which are assembled to each other.
The first shield member 31 covers the housing 20 from the cover member 22 side in order to suppress the intrusion of noise into the housing 20. The first shield member 31 shown here has: a main wall 31a that covers the cover member 22; and a side wall 31b surrounding the housing main body 21 in a state where the lead-out direction side of the electric wire We is open (fig. 2 to 4, 9, and 10).
The first shield cover member 31 is screwed to the housing main body 21 by a fastening structure in which the clamping direction of the housing main body 21 and the lid member 22 to the first wire holder 60 is the screw axis direction. The side wall 31b of the first shield member 31 shown here is provided with 2 fixing portions 31c, and each fixing portion 31c is formed with a female screw portion N1 (fig. 1, 2, and 10). The housing body 21 is provided with fixing portions 21d (fig. 1, 5, and 6) for attaching to the fixing portions 31c for each fixing portion 31c, and each fixing portion 21d is formed with a through hole 21d for inserting a male screw member B1 (fig. 1 and 4) 1 (FIGS. 5 and 6). The first shield member 31 has the male screw member B1 inserted through the through hole 21d 1 Then, the male screw member B1 is screwed into the female screw portion N1, whereby the first shield member 31 is screwed to the housing main body 21.
Here, between the housing main body 21 and the first shield cover member 31, an axial force of the fastening structure acts in a direction in which the housing main body 21 and the lid member 22 sandwich the first wire holder 60. Therefore, in the connector 1, the clamping force of the first wire holder 60 is generated between the housing main body 21 and the cover member 22 by the axial force acting on the fastening structure between the housing main body 21 and the first shield member 31. For example, the first shield member 31 is formed in the following shape: in a state where the housing main body 21 and the first shield member 31 are screwed, the main wall 31a can be brought into contact with the lid member 22, and a pressing force toward the housing main body 21 can be applied from the main wall 31a to the lid member 22. Thus, in the connector 1, since a stable holding force without variation can be applied to the first wire holder 60 from the housing main body 21 and the cover member 22, the effect of suppressing propagation of vibration to the terminal fitting 10 can be enhanced.
The second shield member 32 is for suppressing the intrusion of noise into the first lead-out portion We1 of the electric wire We led out from the housing chamber 20 c. Therefore, the second shield member 32 is provided with a cylindrical portion 32a (fig. 1 to 4, 9, and 10) that accommodates the first lead-out portion We 1. The cylindrical portion 32a shown here is formed in an oblong cylindrical shape, and the space inside thereof is used as the electric wire accommodation chamber 32b (fig. 3, 9, and 10) that accommodates the first lead-out portion We 1. The second shield member 32 is assembled in a state where the end portion is in surface contact with the first shield member 31. The second shield member 32 accommodates the first lead-out portion Wex in the wire accommodating chamber 32b inside the tube portion 32a disposed at a position closer to the lead-out direction of the wire We than the end portion, and leads out the wire We from the lead-out opening 32c of the wire accommodating chamber 32b to the outside (fig. 3).
In the second shield member 32, a flat annular portion 32d (fig. 3, 9, and 10) that is coaxial with the tube portion 32a and protrudes inward is provided on the periphery of the opening of the tube portion 32a on the wire We extraction direction side. In the second shield member 32, the opening on the inner peripheral surface side of the annular portion 32d is used as the lead-out port 32c of the electric wire We.
In the second shield member 32, the peripheral edge of the opening of the cylindrical portion 32a on the opposite side of the extraction port 32c and the vicinity thereof are set as end portions, and the end portions are brought into surface contact with the first shield member 31.
The second shield member 32 shown here has a flat plate-like flange portion 32e (fig. 1 to 4, 9, and 10) provided on the periphery of the opening of the cylindrical portion 32a on the side opposite to the extraction opening 32 c. The flange portion 32e has a flat surface in surface contact with the end surface of the main wall 31a of the first shield member 31 on the side of the wire We leading direction.
Here, in the first shield member 31, the side wall 31b is provided with 2 fixing portions 31d (fig. 1, 2, 9, and 10) having a wall surface flush with the end surface of the main wall 31 a. The fixing portion 31d is used to screw-fix the second shield member 32 to the first shield member 31 via the flange portion 32 e. Therefore, the flange portion 32e has its flat surface and 2 fixing portions31d are in surface-to-surface contact. Here, each fixing portion 31d is formed with a female screw portion N2 (fig. 10). The flange portion 32e is formed with a through hole 32e for inserting a male screw member B2 (fig. 1, 2, and 9) for each fixing portion 31d 1 (FIG. 10). The second shield member 32 has the male screw member B2 inserted through the through hole 32e 1 Then, the male screw member B2 is screwed into the female screw portion N2, and is screwed to the first shield member 31.
The second shield member 32 further includes a flat first piece 32f, and the first piece 32f protrudes from the flange portion 32e to the opposite side to the lead-out direction of the electric wire We and covers the main wall 31a of the first shield member 31 from the outside to be in surface contact (fig. 2 to 4 and 9). Here, the first sheet portion 32f is formed in a rectangular flat plate shape. A rectangular groove 31a into which the first piece 32f is inserted is formed in the main wall 31a of the first shield member 31 1 (FIGS. 2, 3 and 9).
Further, the second shield member 32 includes a second plate-shaped piece portion 32g, and the second plate-shaped piece portion 32g is disposed so as to protrude from the flange portion 32e to the side opposite to the lead-out direction of the electric wire We on the side opposite to the first plate portion 32f and to face the housing main body 21 from the outside (fig. 1 to 4, 9, and 10).
The connector 1 includes a conductive braided member 35 which is braided in a mesh tubular shape, covers the cylindrical portion 32a of the second shield member 32 in a close contact state, and covers the second lead-out portion We2 (fig. 1 to 4) of the electric wires We which are led out from the wire housing chamber 32 b. The connector 1 further includes an annular seal ring 36, and the braided member 35 is sandwiched between the seal ring 36 and the outer peripheral wall of the cylindrical portion 32a and is tightly pressed (fig. 1 to 4). For example, in the connector 1, 2 fixing portions 31e (fig. 1, 2, 9, and 10) provided on the side wall 31b of the first shield member 31 are screwed to a metal housing of a mating side device, and the shield shell 30 and the braided member 35 are electrically connected to the housing to release noise.
The connector 1 further includes a rubber boot 70, and the rubber boot 70 is formed in a cylindrical shape, covers the cylindrical portion 32a of the second shield member 32 in a close contact state, covers the braided member 35, and accommodates the braided member 35 so as to cover the inside (fig. 3). The rubber sleeve 70 is fixed to the outer peripheral wall of the tube portion 32a in a close contact state by winding a fastening member 75 such as a binding tape from the outside, for example. The rubber sleeve 70 is omitted from the figure.
In the connector 1, the rubber boot 70 prevents water and dust from contacting the knitted member 35 from the outside. On the other hand, in the connector 1, since the shield shell 30 has a divided structure by the first shield member 31 and the second shield member 32, water and dust may enter the shield shell 30 from a mating surface between the first shield member 31 and the second shield member 32, a gap between the second shield member 32 and the housing main body 21, and the like. The mating surfaces are a contact surface between an end surface of the main wall 31a of the first shield member 31 on the side of the direction in which the electric wire We is drawn out and the plane of the flange portion 32e of the second shield member 32, a contact surface between wall surfaces of the 2 fixing portions 31d of the first shield member 31 and the plane of the flange portion 32e of the second shield member 32, and a groove portion 31a of the main wall 31a of the first shield member 31 1 And the first piece 32f of the second shield member 32. The gap is formed between the housing main body 21 and the second piece portion 32g of the second shield member 32.
Here, in the housing 20, even if water or dust entering the shield cover 30 enters the housing chamber 20c from the outlet 20d, the terminal-side sealing member 43 can prevent the water or dust from reaching the terminal fitting 10. Therefore, in the connector 1, as described above, it is possible to suppress the reduction in the durability of the terminal fitting 10 due to water and the reduction in the conductive performance of the terminal fitting 10 due to dust.
On the other hand, in the connector 1, if water or dust entering the shield shell 30 enters the wire housing chamber 32b of the second shield shell member 32 and comes out of the lead-out port 32c of the wire housing chamber 32b, the water or dust may reach the braided member 35, and there is a possibility that the durability of the braided member 35 may be reduced by the water.
Therefore, the connector 1 includes a sealing member (hereinafter, referred to as "woven side sealing member") 45 (fig. 3 and 4) that fills a gap between the inner peripheral wall of the wire housing chamber 32b and the first lead-out portion We1 of the wire We and realizes waterproofing and dust proofing therebetween. The knitted side seal member 45 is formed of an elastic member such as synthetic rubber.
The braided side seal member 45 may be provided for each electric wire We, or may be buried in a gap between the inner peripheral wall of the electric wire housing chamber 32b and the first lead-out portions We1 of the plurality of electric wires We. The braided-side seal member 45 shown here is formed as a member that fills the gap between the inner peripheral wall of the wire housing chamber 32b and the first lead-out portions We1 of the 2 wires We.
The braided side seal member 45 shown here is formed in an oblong shape, and has a circular through hole 45a (fig. 4) provided for each electric wire We. In the woven side seal member 45, a coaxial annular lip (hereinafter referred to as "outer peripheral lip") is formed on the outer peripheral surface, and a coaxial annular lip (hereinafter referred to as "inner peripheral lip") is formed on the inner peripheral surface of the through hole 45 a. The braided side seal member 45 is configured such that the outer peripheral lip is in close contact with the inner peripheral wall of the tube portion 32a, and the inner peripheral lip is in close contact with the outer peripheral surface of the first lead-out portion We1 of the electric wire We, whereby water and dust that enter the shield cover 30 from a mating surface or the like and reach the electric wire accommodation chamber 32b can be prevented from flowing out from the lead-out port 32 c. Therefore, in the connector 1, the durability of the braided member 35 can be suppressed from being lowered by water entering the shield shell 30 from the mating surface or the like.
In the connector 1, since the braided side seal member 45 is disposed on the side of the first wire holder 60 and the terminal side seal member 43 in the wire We drawing direction as described above, the vibration of the wire We transmitted from the drawn portion is absorbed by the braided side seal member 45 before being transmitted to the first wire holder 60 and the terminal side seal member 43. Therefore, in the connector 1, the effect of suppressing the propagation of vibration to the terminal fitting 10 can be further improved.
The connector 1 further includes a wire holder (hereinafter referred to as "second wire holder") 80 (fig. 3, 4, 11, and 12) that holds the electric wire We in the wire housing chamber 32b of the second shield member 32. The second wire holder 80 is formed of an insulating material such as synthetic resin. The second wire holder 80 may be provided for each of the electric wires We, or may be provided as a single member capable of holding a plurality of electric wires We. The second wire holder 80 shown here is provided as a single member capable of holding the first lead-out portions We1 of a plurality of (2 in this example) wires We. In addition, the second wire holder 80 shown here is assembled from a first wire holding member 81 and a second wire holding member 82 formed as the same members, as in the first wire holder 60 shown above (fig. 3, 4, 11, and 12). However, the second wire holder 80 shown here has the following common points and different points with respect to the first wire holder 60 shown previously.
The second wire holder 80 has the same wire insertion portion 80a as the wire insertion portion 60a of the first wire holder 60, but the wire insertion portion 80a does not have a projection portion (fig. 3, 11, and 12) like the rib 60b provided in the wire insertion portion 60 a. The first wire holding member 81 and the second wire holding member 82 have space portions 85 (fig. 12) similar to the space portions 65 of the first wire holding member 61 and the second wire holding member 62 provided in the first wire holder 60, respectively, and the wire insertion portion 80a is formed by a columnar space portion formed by joining the space portions 85 together similarly to the first wire holder 60.
The second wire holder 80 further includes, between the first wire holding member 81 and the second wire holding member 82, a lock mechanism 84{ a first locking body 84a, a second locking body 84b (a second locking portion 84 b) similar to the second lock mechanism 64 between the first wire holding member 61 and the second wire holding member 62 1 And a flexible sheet portion 84b 2 ) And does not have a member corresponding to the first locking mechanism 63 between the first wire holding member 61 and the second wire holding member 62 (fig. 11 and 12).
Here, the second wire holder 80 may be disposed on the terminal fitting 10 side with respect to the weaving-side seal member 45, or may be disposed on the wire receiving chamber 32b side with respect to the weaving-side seal member 45 at the extraction port 32c side. In this example, the second wire holder 80 is disposed on the side of the braided side seal member 45 closer to the drawing port 32c of the wire housing chamber 32b than to the drawing port 32c in order to provide a projection 80c and a locking portion (annular portion 32d) described below with respect to the second wire holder 80 (fig. 3).
The second wire holder 80 has a cylindrical projecting portion 80c, and the projecting portion 80c projects outward beyond the outlet 32c of the wire housing chamber 32b and houses a second outlet portion We2 (fig. 3, 11, and 12) of the wire We. The protruding portion 80c is provided for each electric wire We. The first wire holding member 81 and the second wire holding member 82 each have a semicircular arc-shaped protruding portion 86 (fig. 3 and 12) that protrudes from one end surface 81a, 82a in the axial direction of the wire insertion portion 80a and is concentric with the wire insertion portion 80 a. The first wire holding member 81 and the second wire holding member 82 form a cylindrical protruding portion 80c by joining the respective protruding portions 86 together. In the connector 1, the protruding portion 80c prevents the electric wire We from coming into contact with the peripheral edge of the outlet 32c of the wire housing chamber 32b (the inner peripheral surface of the annular portion 32d), and thus the deterioration in durability of the electric wire We can be suppressed.
Here, the second shield member 32 has a locking portion for locking the second wire holder 80 to the lead-out opening 32c side of the wire housing chamber 32 b. For example, in the second shield member 32 shown here, the plane of the annular portion 32d on the wire housing chamber 32b side is disposed to face the end faces 81a and 82a of the first wire holding member 81 and the second wire holding member 82, respectively. Therefore, in the connector 1, the annular portion 32d is used as a locking portion for the second wire holder 80, and the second wire holder 80 can be prevented from coming out from the wire housing chamber 32b to the extraction port 32c side by the locking portion (the annular portion 32 d). In the connector 1, since the second wire holder 80 is locked to move toward the outlet 32c of the braid-side sealing member 45, the braid-side sealing member 45 can be prevented from coming out of the wire accommodating chamber 32b toward the outlet 32 c.
In the connector 1, since the second wire holder 80 is arranged on the wire We drawing direction side of the first wire holder 60, the terminal side seal member 43, and the braid side seal member 45, which are described above, vibration of the wire We transmitted from the drawn portion is suppressed by the second wire holder 80 before being transmitted to the first wire holder 60, the terminal side seal member 43, and the braid side seal member 45. Therefore, in the connector 1, the effect of suppressing the propagation of vibration to the terminal fitting 10 can be further improved. Further, in the connector 1, since the second wire holder 80 suppresses the vibration of the wire We in the wire housing chamber 32b and suppresses the crush of the braided side seal member 45 caused by the wire We rattling, a gap is less likely to be generated between the wire We and the braided side seal member 45, and the waterproof performance and the dustproof performance of the braided side seal member 45 can be improved.
As described above, in the wire harness WH of the present embodiment, even if water or dust entering the shield shell 30 having the split structure enters the wire accommodating chamber 32b in the cylindrical portion 32a of the second shield component 32, the braid-side sealing member 45 disposed in the wire accommodating chamber 32b can suppress the water or the like from flowing out to the braid member 35 side. Therefore, the wire harness WH can suppress a decrease in durability of the braided member 35 caused by water entering the shield case 30. Further, in this wire harness WH, since the second wire holder 80 suppresses the wire We from wobbling in the wire housing chamber 32b, a gap is less likely to be formed between the wire We and the braided side seal member 45, and the waterproof performance and the dustproof performance of the braided side seal member 45 can be improved.
Claims (5)
1. A wire harness is characterized by comprising:
an electric wire; and
a connector assembled to a terminal of the electric wire,
the connector includes:
a terminal fitting electrically connected directly or indirectly with the tip end of the electric wire;
an insulating housing that houses the electric wire and the terminal fitting in a housing chamber inside thereof and that draws the electric wire outward from a drawing port of the housing chamber;
a conductive first shield member covering the housing;
a conductive second shield member that is assembled to the first shield member in a state in which an end portion thereof is in surface contact with the first shield member, and that accommodates a first lead-out portion of the electric wire, which is led out from the accommodation chamber, in an electric wire accommodation chamber disposed inside a cylindrical portion on a side of the end portion in a lead-out direction of the electric wire, and that leads out the electric wire from a lead-out opening of the electric wire accommodation chamber to an outside;
a conductive braided member braided in a mesh tubular shape, the braided member covering the tubular portion of the second shield member in a close contact state, and covering a second drawn portion of the wire drawn out from the wire housing chamber; and
a braided side seal member that fills a gap between an inner peripheral wall of the electric wire accommodating chamber and the first lead-out portion of the electric wire.
2. The wire harness according to claim 1,
the connector includes a wire holder that is arranged closer to the lead-out side of the wire housing chamber than the braid-side sealing member in the wire housing chamber and that holds the first lead-out portion of the wire.
3. The wire harness according to claim 2,
the wire holder has a cylindrical protruding portion that protrudes outward beyond the lead-out opening of the wire housing chamber and houses the second lead-out portion of the wire.
4. The wire harness according to claim 2 or 3,
the second shield member has a locking portion that locks the wire holder to the outlet side of the wire housing chamber.
5. The wire harness according to any one of claims 1 to 4,
the connector includes:
a terminal-side sealing member that fills a gap between an inner peripheral wall of the housing chamber and the electric wire; and
and a rubber sleeve formed in a cylindrical shape, covering the cylindrical portion of the second shield member in a close contact state, covering the braided member, and housing the braided member so as to cover the inside.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2021-001764 | 2021-01-08 | ||
JP2021001764A JP7200272B2 (en) | 2021-01-08 | 2021-01-08 | wire harness |
Publications (2)
Publication Number | Publication Date |
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CN114792905A true CN114792905A (en) | 2022-07-26 |
CN114792905B CN114792905B (en) | 2023-08-25 |
Family
ID=82116178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202210008232.6A Active CN114792905B (en) | 2021-01-08 | 2022-01-06 | Wire harness |
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JP (1) | JP7200272B2 (en) |
CN (1) | CN114792905B (en) |
DE (1) | DE102021134535A1 (en) |
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JP2024087377A (en) * | 2022-12-19 | 2024-07-01 | 住友電装株式会社 | connector |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010040396A (en) * | 2008-08-06 | 2010-02-18 | Hitachi Cable Ltd | Shield wire harness and method of manufacturing the same |
JP2014170666A (en) * | 2013-03-04 | 2014-09-18 | Yazaki Corp | Waterproof structure of connector |
JP2019212583A (en) * | 2018-06-08 | 2019-12-12 | 住友電装株式会社 | Infiltration suppression structure between connector of wire harness and equipment housing |
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JP6024989B2 (en) * | 2013-10-24 | 2016-11-16 | 住友電装株式会社 | connector |
JP6691098B2 (en) * | 2017-12-20 | 2020-04-28 | 矢崎総業株式会社 | Connector and electric wire with connector |
JP6898380B2 (en) * | 2019-04-04 | 2021-07-07 | 矢崎総業株式会社 | connector |
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- 2021-01-08 JP JP2021001764A patent/JP7200272B2/en active Active
- 2021-12-23 DE DE102021134535.9A patent/DE102021134535A1/en active Pending
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010040396A (en) * | 2008-08-06 | 2010-02-18 | Hitachi Cable Ltd | Shield wire harness and method of manufacturing the same |
JP2014170666A (en) * | 2013-03-04 | 2014-09-18 | Yazaki Corp | Waterproof structure of connector |
JP2019212583A (en) * | 2018-06-08 | 2019-12-12 | 住友電装株式会社 | Infiltration suppression structure between connector of wire harness and equipment housing |
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JP7200272B2 (en) | 2023-01-06 |
DE102021134535A1 (en) | 2022-07-14 |
CN114792905B (en) | 2023-08-25 |
JP2022107083A (en) | 2022-07-21 |
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