connector

Abstract

To provide a connector capable of suppressing an increase in work load.SOLUTION: In a connector, a rear holder is constructed so as to include: a first division body 51 integrally molded with a packing 60; and a second division body 52 that is provided so as to be divided from the first division body 51. The first division body 51 is constructed so as to include a fixing part 513, a fitting part 514, and a first electric wire nipping part 515. The fixing part 513 fixes the packing 60. The fitting part 514 is provided on an open part 32 side of the fixing part 513, includes a concave part 514a formed in a concave shape, and fits the second division body 52 to the concave part 514a. First electric wire nipping parts 515 are provided in a concave part 514a of the fitting part 514. The second division body 52 includes second electric wire nipping parts 524 that are provided so as to be opposite to the first electric wire nipping parts 515 in a height direction Z crossing in an axial direction X in a state of being fitted to the fitting part 514, and nip and hold electric cables 20 with the first electric wire nipping parts 515.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a connector.

Background Art

[0002] Conventionally, as a connector, for example, Patent Document 1 describes a waterproof connector capable of improving the sealing property around an electric wire. This waterproof connector includes a housing in which a plurality of cavities capable of accommodating terminal fittings connected to the ends of electric wires are arranged side by side, a batch rubber plug in which a plurality of seal holes are formed corresponding to the cavities and are arranged on the rear surface of the housing and are capable of penetrating the electric wires in a watertight manner, and a rear holder that is arranged on the rear surface of the batch rubber plug and is attached to the housing to hold the batch rubber plug. This rear holder has a thick plate shape that covers the rear surface of the batch rubber plug and has a shape in which a plurality of through holes capable of penetrating the electric wires substantially tightly are formed corresponding to the seal holes, and a waterproof plug body is formed by being integrally molded on the rear surface side of the batch rubber plug, and this waterproof plug body is divided by a plane crossing the seal holes and the through holes.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, for the waterproof connector described in the above Patent Document 1, for example, it is conceivable to provide a wire clamping portion for clamping and holding the electric wire in the rear holder. In this case, when attaching the rear holder to the housing, in addition to the insertion force for inserting the batch rubber plug into the housing, an insertion force for inserting the electric wire into the wire clamping portion is applied, and there is a risk that the work load increases due to the increase in these insertion forces.

[0005] Therefore, the present invention has been made in view of the above, and aims to provide a connector that can suppress an increase in workload. [Means for solving the problem]

[0006] To solve the above-mentioned problems and achieve the objective, the connector according to the present invention comprises: a terminal connected to an electric wire extending along the axial direction; a main body that holds the terminal and is fitted into a mating connector; a housing provided in the main body having an opening for pulling the electric wire out to the outside; a rear holder that closes the opening when the electric wire is pulled out to the outside of the housing; and an elastically deformable packing provided in the rear holder having an insertion hole through which the electric wire can be inserted and sealing the opening when the electric wire is inserted into the insertion hole, wherein the packing is integrally molded in the rear holder. The device comprises a first divided body and a second divided body provided separately from the first divided body, the first divided body comprising a fixing portion for fixing the packing, a fitting portion provided on the opening side of the fixing portion and having a recess formed in a concave shape for fitting the second divided body into the recess, and a first wire clamping portion provided in the recess of the fitting portion, the second divided body having a second wire clamping portion provided in a crossing direction that intersects the axial direction with the first wire clamping portion when fitted into the fitting portion, and which clamps and holds the wire together with the first wire clamping portion. [Effects of the Invention]

[0007] The connector according to the present invention seals the opening of the housing by press-fitting a first segment, which has a gasket integrally molded into it, into the opening, and further holds the electric wire by fitting a second segment into the mating portion of the first segment. As a result, the connector can distribute the press-fitting force required to press-fit the first segment into the housing opening and the mating force required to fit the second segment into the mating portion, thereby distributing the workload when closing the housing opening with the rear holder, and consequently suppressing an increase in the workload. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a perspective view showing an example of a connection in which a connector according to the embodiment is connected to a mating connector. [Figure 2] Figure 2 is a perspective view showing an example of disconnection where the connector according to the embodiment is disconnected from the mating connector. [Figure 3] Figure 3 is an exploded perspective view showing an example of the connector configuration according to the embodiment. [Figure 4] Figure 4 is a perspective view showing an example of the configuration of the second divided part of the rear holder according to the embodiment. [Figure 5] Figure 5 is a cross-sectional view of the line Q1-Q1 in Figure 2. [Figure 6] Figure 6 is a cross-sectional view of the line Q2-Q2 in Figure 2. [Modes for carrying out the invention]

[0009] Embodiments for carrying out the present invention will be described in detail with reference to the drawings. The present invention is not limited to the contents described in the following embodiments. Furthermore, the components described below include those that can be easily imagined by those skilled in the art, and those that are substantially the same. Moreover, the components described below can be combined as appropriate. Furthermore, various omissions, substitutions, or modifications of the components can be made without departing from the spirit of the present invention.

[0010] A connector 1 according to an embodiment will be described with reference to the drawings. Connector 1 is, for example, fitted into a mating connector 100 provided on a vehicle, and electrically connects the electronic device connected to connector 1 with the electronic device connected to the mating connector 100. Connector 1 has a watertight function, and is designed to suppress an increase in workload when assembling the parts that realize this watertight function. Connector 1 will be described in detail below.

[0011] As shown in Figures 1 to 6, connector 1 comprises terminals 10, electric wires 20, housing 30, lever mechanism 40, rear holder 50, packing 60, first locking mechanism 70, and second locking mechanism 80.

[0012] In the following explanation, of the three intersecting directions, the first direction will be referred to as the "axial direction X," the second direction as the "width direction Y," and the third direction as the "height direction Z." Here, the axial direction X, the width direction Y, and the height direction Z intersect with each other and are typically orthogonal. The axial direction X corresponds to the direction in which the wires 20 extend, the direction in which connectors are inserted and removed from each other, etc. The width direction Y corresponds to the direction along the width of connector 1, the direction in which each wire 20 is aligned, etc. The height direction (intersecting direction) Z corresponds to the direction along the height of connector 1, etc. Furthermore, unless otherwise specified, the directions used in the following explanation refer to the directions when each part is assembled with the others.

[0013] As shown in Figure 5, terminal 10 is a female terminal made of a conductive metal material and is electrically connected to the mating terminal. Terminal 10 has an electrical contact portion that is electrically connected to the mating terminal and a wire connection portion that is electrically connected to the end of the electric wire 20. The wire connection portion is electrically connected to the electric wire 20 by crimping and fastening with the conductor portion 21 of the electric wire 20.

[0014] As shown in Figure 1, the electric wire 20 extends along the axial direction X and has a conductive conductor portion 21 and a covering portion 22 that insulates the conductor portion 21. The conductor portion 21 consists of a stranded wire made by twisting multiple conductive metal strands (such as aluminum alloy or copper alloy) in a spiral shape, or a rod-shaped single-core wire. The covering portion 22 is formed of, for example, an insulating synthetic resin. The electric wire 20 is electrically connected when the conductor portion 21 at the end is crimped to the wire connection portion of the terminal 10.

[0015] As shown in FIG. 3, the housing 30 is formed of an insulating material such as synthetic resin and houses the terminal 10 and the like. The housing 30 has a main body portion 31, an opening portion 32, a pair of protruding portions 33, 33, a slide portion 34, and a pair of claws 35, 35.

[0016] The main body portion 31 is formed in a cylindrical shape and has an internal space portion inside. The main body portion 31 houses the terminal 10 while holding it in the internal space portion. One side in the axial direction X of the main body portion 31 is open, and the other side in the axial direction X is also open. The other side in the axial direction X of the main body portion 31 is fitted to the mating connector 100. At this time, the terminal 10 housed in the internal space portion of the main body portion 31 is electrically connected to the terminal of the mating connector 100.

[0017] The opening portion 32 is a portion where one side in the axial direction X of the main body portion 31 is open. The opening portion 32 is a portion through which the electric wire 20 connected to the terminal 10 housed in the internal space portion of the main body portion 31 passes when the electric wire 20 is drawn out to the outside. That is, the electric wire 20 connected to the terminal 10 housed in the internal space portion of the main body portion 31 is drawn out to the outside through the opening portion 32.

[0018] The pair of protruding portions 33, 33 serve as a rotation axis of a lever member 41 described later. The pair of protruding portions 33, 33 are provided on the outer surface of the main body portion 31. In this example, they are provided on one side surface and the other side surface of the main body portion 31 along the width direction Y of the main body portion 31, and each protrudes outward. The pair of protruding portions 33, 33 are rotatably fitted with the hole portions of the lever member 41.

[0019] The slide portion 34 is provided on the outer surface of the main body portion 31. In this example, it is located on the upper surface on one side in the height direction Z of the main body portion 31. The slide portion 34 slidably holds a locking member 42 described later for fixing the rotation position of the lever member 41.

[0020] The pair of claws 35, 35 are for locking a rear holder 50 described later. The pair of claws 35, 35 are provided on the outer surface of the main body 31. In this example, they are provided on one side surface and the other side surface of the main body 31 along the width direction Y of the main body 31, and each protrudes outward.

[0021] The lever mechanism 40 is for fitting the connector 1 to the mating connector 100 with a low insertion force. Here, as shown in FIG. 2, the mating connector 100 includes a housing 103 that houses terminals. The housing 103 has a fixing portion 102 fixed to an object such as a vehicle body, and a pair of protruding portions 104, 104 protruding from the housing 103 along the width direction Y. The fixing portion 102 is provided with a hole portion, and a bolt 101 is inserted through the hole portion. The housing 103 is fixed to an object such as a vehicle body by inserting the bolt 101 inserted through the hole portion of the fixing portion 102 into the object such as the vehicle body and screwing the bolt 101 with a nut. The pair of protruding portions 104, 104 are engaged with the lever mechanism 40.

[0022] The lever mechanism 40 comprises a lever member 41 and a locking member 42. The lever member 41 is assembled to the housing 30 so as to be rotatable relative to the housing 30. The lever member 41 rotates, for example, by having a pair of holes in the lever member 41 fitted onto a pair of projections 33, 33 of the housing 30, with the pair of projections 33, 33 as the pivot axis. The lever member 41 has a pair of elongated holes 411, 411 formed therein, into which a pair of projections 104, 104 of the mating connector 100 are fitted. The lever mechanism 40 moves the connector 1 toward the mating connector 100 along the axial direction X by rotating the lever member 41 toward one side while the pair of projections 104, 104 of the mating connector 100 are fitted into the pair of elongated holes 411, 411. This allows the lever mechanism 40 to fit the connector 1 toward the mating connector 100 with low insertion force. On the other hand, the lever mechanism 40 moves the connector 1 toward the side away from the mating connector 100 along the shape of the pair of elongated holes 411, 411 by rotating the lever member 41 toward the other side while the connector 1 is fitted toward the mating connector 100. This allows the lever mechanism 40 to remove the connector 1 from the mating connector 100 with little force.

[0023] The locking member 42 fixes the rotational position of the lever member 41 when the connector 1 is fitted to the mating connector 100 by the rotation of the lever member 41. The locking member 42 is inserted into the sliding portion 34 of the housing 30 and locks the lever member 41 after it has rotated, thereby fixing the rotational position of the lever member 41.

[0024] As shown in Figures 2 and 3, the rear holder 50 according to this embodiment closes the opening 32 with the electric wire 20 pulled out to the outside of the housing 30. The rear holder 50 is made of synthetic resin or the like and consists of a first divided body 51 and a second divided body 52. ​​The rear holder 50 functions as a closeer for the opening 32 of the housing 30 when the second divided body 52 is assembled to the first divided body 51.

[0025] When viewed from the axial direction X, the first segment 51 has an outer shape similar to the inner shape of the opening 32 of the housing 30, and in this example, its outer shape is rectangular (a rectangular shape with rounded corners). The first segment 51 has a packing 60 integrally molded into it and is housed inside the housing 30. As shown in Figure 3, the first segment 51 includes a pair of sliding recesses 511, 511, a plurality of first projections 512, a fixing part 513, a fitting part 514, a first wire clamping part 515, a pair of first hooks 516, 516, and a pair of second hooks 517, 517 as locking parts.

[0026] The pair of sliding recesses 511, 511 are grooves into which the pair of sliding protrusions 522, 522 of the second divided body 52, described later, are slidably fitted. The pair of sliding recesses 511, 511 are formed along the axial direction X on the inner wall of the fitting portion 514 and are located on both sides of the inner wall of the fitting portion 514 in the width direction Y. The pair of sliding recesses 511, 511 allow the pair of sliding protrusions 522, 522 of the second divided body 52 to be slidably fitted, and guide the second divided body 52 along the axial direction X when the second divided body 52 is fitted into the fitting portion 514.

[0027] The multiple first protrusions 512 suppress rattling of the first divided body 51 and the second divided body 52 when the first divided body 51 is housed inside the housing 30. The multiple first protrusions 512 are formed on the outer surface of the first divided body 51 along the axial direction X and protrude from the outer surface of the first divided body 51 toward the inner surface of the housing 30. The multiple first protrusions 512 are provided on the outer surface of the first divided body 51 on both sides in the width direction Y and on one side in the height direction Z (opposite side from the fitting portion 514 side), for example, as shown in Figure 6. The multiple first protrusions 512 abut against the inside of the housing 30 when the first divided body 51 is housed inside the housing 30.

[0028] The fixing portion 513 is the part that fixes the packing 60. As shown in Figure 3, the fixing portion 513 is provided on the side opposite to the opening 32 of the fitting portion 514 in the axial direction X. The fixing portion 513 is formed in a shape that is similar to the shape of the inside of the opening 32 of the housing 30. For example, the fixing portion 513 is formed in an annular shape around the axis. The packing 60 is integrally molded with the fixing portion 513 by injection molding of synthetic resin.

[0029] The fitting portion 514 is the part into which the second divided body 52 is fitted. The fitting portion 514 is provided on the side of the opening 32 of the fixing portion 513 in the axial direction X. The fitting portion 514 has a recessed recess 514a. The recess 514a is a part formed by being recessed along the height direction Z and constitutes a housing space capable of accommodating the second divided body 52. ​​The fitting portion 514 fits the second divided body 52 into the recess 514a while the second divided body 52 is housed in the housing space of the recess 514a.

[0030] The first wire clamping portion 515, together with the second wire clamping portion 524 of the second divided body 52 (described later), holds the electric wire 20 by clamping it. The first wire clamping portion 515 is provided in the recess 514a of the fitting portion 514, for example, on one side (bottom side) of the recess 514a of the fitting portion 514 in the height direction Z. The first wire clamping portion 515 has a pair of semi-cylindrical portions 515a, 515a. The pair of semi-cylindrical portions 515a, 515a are formed along the axial direction X on the bottom surface of the recess 514a of the fitting portion 514, and are arranged side by side along the width direction Y. The pair of semi-cylindrical portions 515a, 515a are formed in a semi-circular shape to match the outer shape of the electric wire 20. The pair of semi-cylindrical sections 515a, 515a, together with the second wire clamping section 524 of the second divided body 52, hold the electric wire 20 between them.

[0031] A pair of first hooks 516, 516 engage with a pair of claws 35, 35 provided on the housing 30. The first hooks 516 are U-shaped and extend along the axial direction X. The first hooks 516 are provided on the outer surface of the main body of the first segment 51, and are located on one side of the main body in the width direction Y and the other side of the main body in the width direction Y. The pair of first hooks 516, 516 engage with the pair of claws 35, 35 provided on the housing 30 when the first segment 51 is housed inside the housing 30. This prevents the first segment 51 from coming out of the housing 30 through the opening 32.

[0032] A pair of second hooks 517, 517 engage with a pair of claws 525, 525 provided on the second divided body 52, as described below. The second hooks 517 are formed in a U-shape and are provided on the fitting portion 514. For example, the second hooks 517 extend from the fixing portion 513 along the axial direction X toward the fitting portion 514 and are located within the fitting portion 514. The pair of second hooks 517, 517 are located on one side (upper side) of the fixing portion 513 in the height direction Z and are provided side by side along the width direction Y. The pair of second hooks 517, 517 engage with a pair of claws 525, 525 provided on the second divided body 52 when the second divided body 52 is fitted into the fitting portion 514. As a result, the pair of second hooks 517, 517 can prevent the second divided body 52, which is fitted into the fitting portion 514, from coming off the fitting portion 514.

[0033] The second segment 52 is provided separately from the first segment 51 and is fitted along the axial direction X into the fitting portion 514 of the first segment 51 which is housed inside the housing 30, thereby holding the electric wire 20 together with the first segment 51. As shown in Figure 4, the second segment 52 includes an insertion space 521, a pair of sliding protrusions 522, 522, a plurality of second projections 523, a second electric wire clamping portion 524, a pair of claws 525, 525 as locking portions, and a plurality of protrusions 526.

[0034] The insertion space 521 is the space into which a pair of second hooks 517, 517 of the first divided body 51 are inserted. The insertion space 521 is formed extending along the axial direction X. A pair of claws 525, 525 are provided on the inside of the insertion space 521.

[0035] A pair of sliding protrusions 522, 522 are inserted into a pair of sliding recesses 511, 511 of the first divided body 51. The pair of sliding protrusions 522, 522 are provided on the outer surface of the main body of the second divided body 52 and are located on both sides of the main body of the second divided body 52 in the width direction Y. When the second divided body 52 is fitted into the fitting portion 514 of the first divided body 51, the pair of sliding protrusions 522, 522 are inserted into the pair of sliding recesses 511, 511 of the first divided body 51 along the axial direction X, and the second divided body 52 is guided along the axial direction X.

[0036] The multiple second protrusions 523 suppress looseness between the first and second divided body 51 and the second divided body 52 when the second divided body 52 is fitted into the first divided body 51 housed inside the housing 30. The multiple second protrusions 523 are formed on the outer surface of the second divided body 52 along the axial direction X and protrude from the outer surface of the second divided body 52 toward the inner surface of the housing 30. The multiple second protrusions 523 are provided on the outer surface of the second divided body 52 on one side in the height direction Z (opposite side from the second wire clamping portion 524 side), for example, as shown in Figure 3. The multiple second protrusions 523 abut against the inner surface of one side (upper side) in the height direction Z of the housing 30 when the second divided body 52 is fitted into the first divided body 51 housed inside the housing 30.

[0037] The second wire clamping portion 524, together with the first wire clamping portion 515 of the first divided body 51, clamps and holds the electric wire 20. The second wire clamping portion 524 is provided on one side of the insertion space portion 521 in the height direction Z (the side of the first wire clamping portion 515 of the first divided body 51). The second wire clamping portion 524 is provided opposite the first wire clamping portion 515 in the height direction Z when the second divided body 52 is fitted into the fitting portion 514 of the first divided body 51. The second wire clamping portion 524 has a pair of semi-cylindrical portions 524a, 524a. The pair of semi-cylindrical portions 524a, 524a are formed along the axial direction X and are provided side by side along the width direction Y. The pair of semi-cylindrical sections 524a, 524a are positioned in the height direction Z opposite the pair of semi-cylindrical sections 515a, 515a of the first divided body 51 when the second divided body 52 is fitted into the fitting portion 514 of the first divided body 51. The pair of semi-cylindrical sections 524a, 524a are formed in a semi-circular shape to match the outer shape of the electric wire 20. The pair of semi-cylindrical sections 524a, 524a, together with the pair of semi-cylindrical sections 515a, 515a of the first divided body 51, hold the electric wire 20 by sandwiching it along the height direction Z.

[0038] A pair of claws 525, 525 engage with a pair of second hooks 517, 517 of the first segment 51. As shown in Figure 4, the pair of claws 525, 525 are provided in the insertion space 521 of the second segment 52, and in this example, they are provided on the inside of the upper wall of the second segment 52. The pair of claws 525, 525 protrude from the upper wall of the second segment 52 towards the insertion space 521 along the height direction Z, and are positioned side by side along the width direction Y. The pair of claws 525, 525 engage with the pair of second hooks 517, 517 of the first segment 51 when the second segment 52 is fitted into the fitting portion 514 of the first segment 51. As a result, the pair of second hooks 517, 517 and the pair of claws 525, 525 prevent the second segment 52, which is fitted into the fitting portion 514 of the first segment 51, from coming off the fitting portion 514.

[0039] The multiple protrusions 526 suppress rattling of the electric wire 20. The multiple protrusions 526 are formed along the axial direction X on the inner surfaces of a pair of semi-cylindrical portions 524a, 524a and protrude toward the electric wire 20 from the inner surfaces of the pair of semi-cylindrical portions 524a, 524a. The multiple protrusions 526 contact the electric wire 20 while the electric wire 20 is held between the pair of semi-cylindrical portions 524a, 524a of the second divided body 52 and the pair of semi-cylindrical portions 515a, 515a of the first divided body 51. As a result, the multiple protrusions 526 can suppress rattling of the electric wire 20.

[0040] The packing 60 prevents foreign matter such as moisture and dust from entering the inside of the housing 30 through the opening 32 of the housing 30. The packing 60 is made of an elastically deformable material such as rubber. When viewed from the axial direction X, the outer shape of the packing 60 is similar to the inner shape of the opening 32 of the housing 30, and in this example, its outer shape is rectangular (a rectangular shape with rounded corners). The packing 60 has an insertion hole 61, a protruding portion 62, and a fixed portion 63.

[0041] The insertion holes 61 are holes through which the electric wire 20 is inserted. The insertion holes 61 are drilled along the axial direction X and two are provided side by side along the width direction Y. The diameter of the insertion holes 61 is formed to be slightly smaller than the diameter of the electric wire 20, and the electric wire 20 is press-fitted into them.

[0042] The protruding portion 62 is formed in an annular shape and is a part that protrudes from the outer circumferential surface of the main body of the packing 60 into the inside of the housing 30. The protruding portion 62 is formed in an annular shape along the circumferential direction relative to the edge of the main body of the packing 60. The protruding portion 62 abuts against the inside of the housing 30 when the packing 60 is housed inside the housing 30.

[0043] The fixed portion 63 is the part that is fixed to the fixing portion 513 of the first divided body 51. The fixed portion 63 is a part that is integrally molded to the fixing portion 513 of the first divided body 51 by injection molding of synthetic resin, and is fixed to the fixing portion 513. The packing 60 configured as described above seals the opening 32 of the housing 30 with the electric wire 20 inserted through the insertion hole 61.

[0044] The first locking mechanism 70 locks the first segment 51 to the housing 30. The first locking mechanism 70 consists of a pair of claws 35, 35 of the housing 30 and a pair of first hooks 516, 516 of the first segment 51. With the first segment 51 housed inside the housing 30, the first locking mechanism 70 locks the pair of first hooks 516, 516 to the pair of claws 35, 35. This prevents the first segment 51 from coming out of the housing 30 through the opening 32.

[0045] The second locking mechanism 80 locks the second divided body 52 to the first divided body 51. The second locking mechanism 80 is composed of a pair of claws 525, 525 of the second divided body 52, an insertion space 521 of the second divided body 52, and a pair of second hooks 517, 517 of the first divided body 51. With the second divided body 52 fitted into the fitting portion 514 of the first divided body 51, the second locking mechanism 80 inserts the second hooks 517, 517 into the insertion space 521 of the second divided body 52 and locks them into the pair of claws 525, 525 in the insertion space 521. As a result, the second locking mechanism 80 can prevent the second divided body 52, which is fitted into the fitting portion 514 of the first divided body 51, from coming out of the fitting portion 514.

[0046] Next, an example of assembling connector 1 will be described. The worker inserts the first segment 51, which has a packing 60 integrally molded into it, into the housing 30 through the opening 32 along the axial direction X. At this time, the worker inserts the first segment 51 into the housing 30 while passing the electric wire 20 through the insertion hole 61 of the packing 60, thereby housing the first segment 51 inside the housing 30. Then, the worker engages the pair of first hooks 516, 516 provided on the first segment 51 with the pair of claws 35, 35 provided on the housing 30, thereby completing the assembly of the first segment 51. Next, the worker inserts the second segment 52 into the housing 30 along the axial direction X, and fits the second segment 52 into the fitting portion 514 of the first segment 51 housed inside the housing 30 along the axial direction X. As a result, with the second split body 52 fitted into the mating portion 514 of the first split body 51, the connector 1 holds the wire 20 by clamping it with the first wire clamping portion 515 of the first split body 51 and the second wire clamping portion 524 of the second split body 52. ​​The worker then inserts the pair of second hooks 517, 517 provided on the first split body 51 into the insertion space portion 521 provided on the second split body 52 and locks them into the pair of claws 525, 525 in the insertion space portion 521, thereby completing the assembly of the second split body 52.

[0047] As described above, the connector 1 according to the embodiment comprises a terminal 10, a housing 30, a rear holder 50, and a packing 60. The terminal 10 is connected to an electric wire 20 extending along the axial direction X. The housing 30 has a main body 31 that holds the terminal 10 and is fitted into the mating connector 100, and an opening 32 provided in the main body 31 for pulling the electric wire 20 out to the outside. The rear holder 50 closes the opening 32 when the electric wire 20 is pulled out to the outside of the housing 30. The packing 60 is provided in the rear holder 50 and has an insertion hole 61 through which the electric wire 20 can be inserted, and is an elastically deformable member that seals the opening 32 when the electric wire 20 is inserted into the insertion hole 61. In the above configuration, the rear holder 50 is composed of a first divided body 51 into which the packing 60 is integrally molded, and a second divided body 52 provided separately from the first divided body 51. The first divided body 51 is composed of a fixing part 513, a fitting part 514, and a first wire clamping part 515. The fixing part 513 fixes the packing 60. The fitting part 514 is provided on the opening 32 side of the fixing part 513 and has a recessed recess 514a formed in a concave shape, into which the second divided body 52 is fitted. The first wire clamping part 515 is provided in the recess 514a of the fitting part 514. When the second divided body 52 is fitted into the fitting part 514, it is provided opposite the first wire clamping part 515 in the height direction Z which intersects the axial direction X, and has a second wire clamping part 524 which, together with the first wire clamping part 515, clamps and holds the wire 20.

[0048] In this configuration, the connector 1 seals the opening 32 of the housing 30 by press-fitting the first segment 51, which has a packing 60 integrally molded into it, into the opening 32, and then holds the electric wire 20 by fitting the second segment 52 into the fitting portion 514 of the first segment 51. As a result, the connector 1 can distribute the press-fitting force for press-fitting the first segment 51 into the opening 32 of the housing 30 and the fitting force for fitting the second segment 52 into the fitting portion 514, thereby distributing the workload when closing the opening 32 of the housing 30 with the rear holder 50. For example, the connector 1 can stagger the timing of the frictional force between the packing 60 and the housing 30 and the frictional force between the first and second electric wire clamping portions 515 and 524 and the electric wire 20, thereby distributing the workload. As a result, the connector 1 can suppress an increase in workload.

[0049] In the connector 1 described above, the first segment 51 is housed inside the housing 30. The second segment 52 is fitted along the axial direction X into the mating portion 514 of the first segment 51 housed inside the housing 30. With this configuration, the connector 1 can fit the second segment 52 into the mating portion 514 of the first segment 51 housed inside the housing 30.

[0050] In the connector 1 described above, the first segment 51 has a first projection 512 that protrudes from the outer surface of the first segment 51 toward the inner surface of the housing 30. The second segment 52 has a second projection 523 that protrudes from the outer surface of the second segment 52 toward the inner surface of the housing 30. The first projection 512 and the second projection 523 abut against the inner surface of the housing 30 when the second segment 52 is fitted into the fitting portion 514. With this configuration, the connector 1 can suppress rattling of the rear holder 50, which is composed of the first segment 51 and the second segment 52. In addition, the connector 1 can distribute the workload when suppressing rattling of the rear holder 50.

[0051] The connector 1 described above includes a first locking mechanism 70 for locking the first divided body 51 to the housing 30, and a second locking mechanism 80 for locking the second divided body 52 to the first divided body 51. The second locking mechanism 80 has an insertion space 521 and a pair of second hooks 517, 517. The insertion space 521 is provided in the second divided body 52, extends along the axial direction X, and has a pair of claws 525, 525 on its inside. The pair of second hooks 517, 517 are provided in the fitting portion 514 and extend along the axial direction X. With the second divided body 52 fitted into the fitting portion 514, the pair of second hooks 517, 517 are inserted into the insertion space 521 and locked to the pair of claws 525, 525. With this configuration, the connector 1 can prevent the second divided body 52, which is fitted into the fitting portion 514 of the first divided body 51, from coming off the fitting portion 514 by the second locking mechanism 80.

[0052] In the above description, an example was given in which the second divided body 52 is fitted along the axial direction X into the fitting portion 514 of the first divided body 51 which is housed inside the housing 30. However, the description is not limited to this, and for example, the second divided body 52 may be configured to be fitted along a direction different from the axial direction X into the fitting portion 514 of the first divided body 51.

[0053] Although an example has been described in which the connector 1 has a first projection 512 and a second projection 523 to suppress rattling, the example is not limited to this, and rattling may be suppressed by a configuration such as using an elastic member to suppress rattling.

[0054] The second locking mechanism 80 may be configured such that an insertion space 521 is provided in the fitting portion 514, and a pair of second hooks 517, 517 are provided in the second divided body 52, and when the second divided body 52 is fitted into the fitting portion 514, the pair of second hooks 517, 517 are inserted into the insertion space 521 and locked into the pair of claws 525, 525.

[0055] Connector 1 can also be assembled to the housing 30 by first fitting the second split part 52 into the mating portion 514 of the first split part 51. [Explanation of Symbols]

[0056] 1 Connector 10 terminals 20 Electric wire 30 Housing 31 Main body 32 openings 50 Rear Holder 51 1st division body 513 Fixed part 514 Fitting part 514a Recess 515 1st wire clamping part 52 Second division body 512 1st protrusion 523 2nd protrusion 524 2nd wire clamping part 60 packing 61 Through hole 70 First locking mechanism 80 Second locking mechanism 517 Second hook (locking part) 521 Insertion space 525 Claw (locked part) 100 mating connector X-axis direction

Claims

1. A terminal connected to a wire extending along the axial direction, A main body that holds the terminal and is fitted into the mating connector, and a housing provided in the main body having an opening for pulling the electric wire out to the outside, A rear holder that closes the opening with the aforementioned electric wire pulled out to the outside of the housing, The rear holder is provided with an insertion hole through which the electric wire can be inserted, and includes an elastically deformable packing that seals the opening when the electric wire is inserted through the insertion hole, The rear holder is composed of a first divided body into which the packing is integrally molded, and a second divided body provided separately from the first divided body. The first divided body is composed of a fixing portion for fixing the packing, a fitting portion provided on the opening side of the fixing portion and having a recess formed in a concave shape, into which the second divided body is fitted, and a first wire clamping portion provided in the recess of the fitting portion. The connector is characterized in that the second divided body, when fitted into the fitting portion, is provided facing the first wire clamping portion in an intersecting direction that intersects the axial direction, and has a second wire clamping portion that clamps and holds the wire together with the first wire clamping portion.

2. The first divided body is housed inside the housing. The connector according to claim 1, wherein the second divided body is fitted along the axial direction into the fitting portion of the first divided body housed inside the housing.

3. The first divided body has a first projection that protrudes from the outer surface of the first divided body toward the inner surface of the housing, The second divided body has a second projection that protrudes from the outer surface of the second divided body toward the inner surface of the housing, The connector according to claim 1 or 2, wherein the first projection and the second projection abut against the inner surface of the housing when the second divided body is fitted into the fitting portion.

4. A first locking mechanism for locking the first divided body to the housing, The device comprises a second locking mechanism for locking the second divided body to the first divided body, The second locking mechanism is provided on either the fitting portion or the second divided body and has an insertion space portion that extends along the axial direction and has a locking portion on its inner side, and a locking portion provided on the other of the fitting portion or the second divided body and extends along the axial direction. The connector according to claim 1 or 2, wherein the second divided body is fitted into the fitting portion, and the locking portion is inserted into the insertion space portion and locked into the locked portion.

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