Connector device and wiring device

Abstract

To suppress an immersion of water into a terminal housing chamber caused by a construction for receiving a finger insertion suppression projection part.SOLUTION: A connector device 20 comprises: a first connector 30 including a first connector housing 32 and a first connector terminal 36; and a second connector 40 containing a second connector housing 42 and a plurality of second connector terminals 46. The first connector housing includes a finger insertion suppression projection part 33, and the second connector housing includes: a plurality of terminal housing chambers 43; and a projection part reception chamber 44 into which the finger insertion suppression projection part is inserted. In a state where the second connector housing is fitted into the first connector housing, terminal insertion side opens of the plurality of terminal housing chambers 43 is cutoff, and between the terminal insertion side opens and a plurality of terminal insertion opens of the projection part reception chamber 44 is cutoff.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to a connector device and a wiring device.

Background Art

[0002] Patent Document 1 discloses a mating connector in which an insulating wall is provided between a pair of mating terminals. The insulating wall suppresses contact of a finger with the mating terminals. The connector connected to the mating connector has a first insertion hole through which the insulating wall is inserted in a connected state.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Even when an insulating wall for suppressing contact between a finger and a mating terminal is provided in the mating connector, it is desired to make it difficult for water to enter the connector connected to the mating connector.

[0005] Therefore, an object of the present disclosure is to suppress intrusion of water into a terminal accommodation chamber due to a configuration for receiving a finger entry suppressing protrusion in a connector connected to a connector provided with a finger entry suppressing protrusion.

Means for Solving the Problems

[0006] The connector device of the present disclosure includes a first connector housing having a bottomed cylindrical portion and a plurality of first connector terminals having terminal insertion portions, and the plurality of first connector terminals are respectively Terminal insertion partA first connector held by the first connector housing in a state of protruding from the bottom of the bottomed cylindrical portion, a second connector housing fitted into the bottomed cylindrical portion, and a plurality of second connectors held by the second connector housing at positions where they can be connected to the plurality of first connector terminals. The first connector housing has a finger insertion preventing protrusion protruding from the bottom of the bottomed cylindrical portion so as to be located in the middle, and the second connector housing has a plurality of terminal accommodation chambers for separately accommodating the plurality of second connector terminals and partitioned in a water-stopping state between adjacent positions, and a protrusion receiving chamber into which the finger insertion preventing protrusion is inserted and partitioned in a water-stopping state with respect to the plurality of terminal accommodation chambers. In a state where the second connector housing is fitted into the first connector housing, the openings on the terminal insertion side into which the plurality of second connector terminals are inserted are water-stopped, and the openings on the protrusion insertion side into which the finger insertion preventing protrusion is inserted in the protrusion receiving chamber are water-stopped. This is a connector device. A plurality of said terminal insertion parts A finger insertion preventing protrusion protruding from the bottom of the bottomed cylindrical portion so as to be located in the middle, and the second connector housing has a plurality of terminal accommodation chambers for separately accommodating the plurality of second connector terminals and partitioned in a water-stopping state between adjacent positions, and a protrusion receiving chamber into which the finger insertion preventing protrusion is inserted and partitioned in a water-stopping state with respect to the plurality of terminal accommodation chambers. In a state where the second connector housing is fitted into the first connector housing, the openings on the terminal insertion side into which the plurality of second connector terminals are inserted are water-stopped, and the openings on the protrusion insertion side into which the finger insertion preventing protrusion is inserted in the protrusion receiving chamber are water-stopped. Terminal insertion part The openings on the terminal insertion side into which the plurality of second connector terminals are inserted are water-stopped, and the openings on the protrusion insertion side into which the finger insertion preventing protrusion is inserted in the protrusion receiving chamber are water-stopped. and complex The number of terminal insertions side The openings are water-stopped. This is a connector device.

[0007] In addition, the wiring device of the present disclosure includes the above connector device, a plurality of electric wires each including a core wire and a coating, and connected to each of the plurality of second connector terminals and extending from the second connector housing, and a third connector connected to an end of the plurality of electric wires on the side opposite to the second connector. In the third connector, the ends of the plurality of electric wires communicate with the space outside the third connector in a state where water from the outside can reach the core wire. This is a wiring device.

Advantages of the Invention

[0008] According to the present disclosure, in a connector connected to a connector provided with a finger insertion preventing protrusion, it is possible to prevent water from entering the terminal accommodation chamber due to the configuration for receiving the finger insertion preventing protrusion.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

[0010] [Description of Embodiments of the Present Disclosure] First, embodiments of the present disclosure will be listed and described.

[0011] The connector device of the present disclosure is as follows.

[0012] (1) A first connector housing having a bottomed cylindrical portion, and a plurality of first connector terminals having terminal insertion portions, wherein the plurality of first connector terminals are each held by the first connector housing in a state of protruding from the bottom of the bottomed cylindrical portion, a first connector, a second connector housing fitted into the bottomed cylindrical portion, and a plurality of second connector terminals held by the second connector housing at positions connectable to the plurality of first connector terminals. The first connector housing has a finger insertion inhibiting protrusion protruding from the bottom of the bottomed cylindrical portion so as to be located in between. The second connector housing has a plurality of terminal accommodation chambers that separately accommodate the plurality of second connector terminals and are partitioned in a water-stopping state between adjacent positions, and a protrusion receiving chamber into which the finger insertion inhibiting protrusion is inserted and which is partitioned in a water-stopping state with respect to the plurality of terminal accommodation chambers. In a state where the second connector housing is fitted into the first connector housing, among the plurality of terminal accommodation chambers, the Terminal insertion part A plurality of said terminal insertion parts Terminal insertion part ​​The gap between the terminal insertion side openings into which it is inserted is sealed, and the protrusion insertion side opening of the protrusion receiving chamber into which the finger insertion suppressing protrusion is inserted and complex Insertion of a number of terminals side A connector device in which the gap between the opening and the opening is sealed

[0013] According to the present disclosure, in a second connector connected to a first connector provided with a finger insertion suppressing protrusion, a plurality of terminal accommodation chambers are partitioned in a water-sealed state, and a protrusion receiving chamber is partitioned in a water-sealed state with respect to the plurality of terminal accommodation chambers. Further, in a state where the second connector housing is fitted into the first connector housing, the gap between the terminal insertion side openings of the plurality of terminal accommodation chambers is sealed, and the protrusion insertion side opening and the plurality of terminal insertions side The gap with the opening is sealed. Therefore, it is difficult for water to enter some of the terminal accommodation chambers and affect other terminal accommodation chambers. Further, even if water enters the protrusion receiving chamber, the intrusion of water into the terminal accommodation chamber is suppressed. Thereby, in the second connector, the intrusion of water into the terminal accommodation chamber due to the configuration for receiving the finger insertion suppressing protrusion is suppressed

[0014] (2) The connector device according to (1), wherein the second connector housing has an annular protrusion protruding from an opening into which the finger insertion suppressing protrusion is inserted in the protrusion receiving chamber, and the second connector is disposed on the distal end side of the second connector housing and includes a water stop member having a seal hole portion into which the annular protrusion can be inserted, and an outer peripheral portion of the annular protrusion contacts an inner peripheral portion of the seal hole portion, and the protrusion insertion side opening and the plurality of terminal insertions side The gap with the opening may be sealed

[0015] In this case, the water stop member seals the gap between the protrusion insertion side opening and the plurality of terminal insertions by contacting the outer peripheral portion of the annular protrusion. Therefore, when the finger insertion suppressing protrusion is inserted into the protrusion receiving chamber, contact between the water stop member and the finger insertion suppressing protrusion can be avoided. Thereby, it is possible to suppress an increase in the fitting resistance when the second connector housing is fitted into the first connector housing side Opening

[0016] (3) The connector device of (2), wherein an annular seal protrusion that partially protrudes in the penetrating direction of the seal hole portion and contacts the outer peripheral portion of the annular protrusion may be formed on the inner peripheral portion of the seal hole portion.

[0017] By pressing against the outer peripheral portion of the annular protrusion while compressing the annular seal protrusion, the sealing performance at the outer peripheral portion of the annular protrusion can be enhanced.

[0018] (4) The connector device of (2) or (3), wherein the first connector housing partially protrudes from the bottom of the bottomed cylindrical portion and includes a plurality of base end protrusions that cover the respective base end portions of the plurality of Terminal insertion part The water stop member has a plurality of terminal seal holes into which the respective base end protrusions are inserted. In a state where the second connector housing is fitted into the first connector housing, the outer peripheral portion of each of the plurality of base end protrusions contacts each of the plurality of terminal seal holes, and the spaces between the plurality of terminal insertion side openings may be sealed.

[0019] In this case, the outer peripheral portion of the base end protrusion that covers the base end portion of the plurality of terminal insertion portions contacts each of the plurality of terminal seal holes of the water stop member, thereby sealing the spaces between the plurality of terminal insertion side openings. As a result, the plurality of terminal accommodation chambers are individually sealed. Further, the water stop member can serve to individually seal the plurality of terminal accommodation chambers and to seal the space between the protrusion insertion side opening and the plurality of terminal insertions side openings.

[0020] (5) The connector device according to any one of (2) to (4), wherein the second connector further includes a water stop member holder having a pressing surface located on the side opposite to the front surface on the first connector housing side of the second connector housing with respect to the water stop member, and a locking piece that locks to the second connector housing and presses the water stop member against the front surface of the second connector housing.

[0021] This can more effectively suppress the intrusion of water passing between the water stop member and the front surface of the second connector housing.

[0022] Also, the wiring device of the present disclosure is as follows.

[0023] (6) A wiring device comprising: any one of the connector devices (1) to (5); a plurality of electric wires each including a core wire and a coating, and connected to each of the plurality of second connector terminals and extending from the second connector housing; and a third connector connected to an end portion of the plurality of electric wires on the side opposite to the second connector, wherein at the third connector, the end portions of the plurality of electric wires communicate with a space outside the third connector in a state where water from the outside can reach the core wire.

[0024] In this case, on the third connector side, there is a possibility that water reaches the core wire inside the electric wire. The water may reach the terminal accommodation chamber of the second connector housing along the core wire. Even if water reaches any of the plurality of terminal accommodation chambers, it is difficult for water to enter not only the other terminal accommodation chambers but also the protrusion receiving chamber. Thereby, the overall influence due to the intrusion of water into a part of the terminal accommodation chambers can be minimized as much as possible.

[0025] [Details of Embodiments of the Present Disclosure] A specific example of the connector device of the present disclosure will be described below with reference to the drawings. It should be noted that the present disclosure is not limited to these examples, and is intended to be defined by the claims and to include all modifications within the meaning and scope equivalent to the claims.

[0026] [Embodiment] Hereinafter, the connector device according to the embodiment will be described. FIG. 1 is an overall schematic view showing a wiring device 10 including a connector device 20.

[0027] [Regarding the Wiring Device] To explain the overall configuration of the wiring device, the wiring device 10 includes a connector device 20, a plurality of electric wires 12, and a third connector 14.

[0028] The connector device 20 includes a first connector 30 and a second connector 40.

[0029] The first connector 30 is, for example, a connector mounted on a mounting substrate 18 on which electrical components are mounted. The mounting substrate 18 is, for example, housed in a case 19. The first connector 30 is fixed to the case 19 such that a part of the first connector 30 is exposed outside the case 19. It is assumed that the space inside the case 19 is a space partitioned so that water does not enter from the outside. Since the first connector 30 is fixed to the case 19 that houses the mounting substrate 18, the first connector 30 can be understood as a connector for an electrical device that realizes the functions realized by the circuit mounted on the mounting substrate 18.

[0030] The second connector 40 is connected to the portion of the first connector 30 that is exposed from the case 19. One ends of a plurality of electric wires 12 are connected to the second connector 40.

[0031] Each of the plurality of electric wires 12 is a coated electric wire having a core wire 12a and a coating 12b. One end of each of the plurality of electric wires 12 is connected to each of the second connector terminals 46 (see FIG. 4) in the second connector 40. The plurality of electric wires 12 extend from the second connector housing 42 in the connector device 20.

[0032] A third connector 14 is connected to the other ends of the plurality of electric wires 12. The third connector 14 includes a third connector housing 15 and third connector terminals 16. The third connector terminals 16 are terminals that are connected to the terminals of a connector (not shown) that is the connection destination of the third connector 14. The third connector housing 15 is formed of an insulating material such as resin and has a plurality of terminal accommodation chambers that accommodate the plurality of third connector terminals 16 in a mutually insulated state.

[0033] The third connector 14 is, for example, a non-waterproof connector. In a non-waterproof connector, it is assumed that the space in the terminal accommodation chamber that houses the third connector terminals 16 is not partitioned in a state where it can prevent water from entering from the space outside the third connector 14. For this reason, it is assumed that the end portion of the electric wire 12 connected to the third connector terminal 16 communicates with the space outside the third connector 14 through the gap of the third connector housing 15, and water from outside the third connector 14 can reach the core wire 12a of the electric wire 12.

[0034] In this case, if water adheres to the core wire 12a at the other end of the electric wire 12, it is assumed that the water will travel along the core wire 12a in the coating 12b and reach one end of the electric wire 12. Note that the third connector 14 may be a waterproof connector.

[0035] <Regarding the overall configuration of the connector device 20> FIG. 2 is an exploded perspective view showing the connector device 20. FIG. 3 is a perspective view showing the first connector 30. FIG. 4 is a cross-sectional view showing the state before connection between the first connector 30 and the second connector 40 along line IV-IV in FIG. 2. FIG. 5 is a cross-sectional view showing the connected state between the first connector 30 and the second connector 40 along line IV-IV in FIG. 2. FIG. 6 is an enlarged view of FIG. 5.

[0036] The connector device 20 includes a first connector 30 and a second connector 40.

[0037] In the present embodiment, the first connector 30 is a connector that is mounted and fixed to the mounting substrate 18. The first connector 30 may be a connector connected to the end portions of a plurality of electric wires.

[0038] The first connector 30 includes a first connector housing 32 and a plurality of first connector terminals 36. With both ends of the plurality of first connector terminals 36 exposed, the middle portion in the longitudinal direction of the plurality of first connector terminals 36 is held in a predetermined array state by the first connector housing 32 (see FIGS. 3 to 5). One end of each of the plurality of first connector terminals 36 is used for electrical connection to the mounting substrate 18 (see FIG. 1), and the other end of each of the plurality of first connector terminals 36 is used for electrical connection to the second connector 40 (see FIG. 5).

[0039] The second connector 40 includes a second connector housing 42 and a plurality of second connector terminals 46 (see FIGS. 4 and 5). The plurality of second connector terminals 46 are held in the second connector housing 42 in a state where they can be connected to the first connector terminals 36. Also, each of the plurality of second connector terminals 46 is connected to an electric wire 12. The electric wire 12 extends from the second connector housing 42.

[0040] When the first connector 30 and the second connector 40 are connected, each of the plurality of first connector terminals 36 is connected to a corresponding one of the plurality of second connector terminals 46. Thereby, each of the plurality of first connector terminals is connected to the terminal of the connector that is the connection destination of the third connector 14 via the second connector terminal 46, the electric wire 12, and the third connector terminal 16.

[0041] Each of the first connector 30 and the second connector 40 will be described more specifically.

[0042] <Regarding the First Connector> As shown in FIGS. 2 to 6, the first connector housing 32 of the first connector 30 is a member formed of an insulating material such as resin. The first connector housing 32 has a bottomed cylindrical portion 31. The bottomed cylindrical portion 31 has a bottom portion 31a and a peripheral wall portion 31b. The bottom portion 31a is formed in a rectangular plate shape, and in this embodiment, it is formed in a rectangular plate shape with rounded corners. The peripheral wall portion 31b is formed as an annular wall formed so as to extend from the periphery of the bottom portion 31a to one side in the thickness direction of the bottom portion 31a. A space into which the second connector housing 42 can be inserted is formed by the space surrounded by the bottom portion 31a and the peripheral wall portion 31b.

[0043] The first connector terminal 36 is formed of a conductive material such as metal. The first connector terminal 36 is an elongated rod-shaped member, one end of which is formed as a terminal insertion portion 36a and the other end of which is formed as a board connection portion 36b. In this embodiment, the middle portion in the longitudinal direction of the first connector terminal 36 is bent, and the first connector terminal 36 as a whole forms an L shape. One end of the first connector terminal 36 penetrates the bottom portion 31a of the first connector housing 32 from front to back. In this embodiment, the portion between the bent portion and the tip of the one end side of the first connector terminal 36 is buried in the bottom portion 31a.

[0044] In the portion of the first connector terminal 36 buried in the bottom portion 31a, it is preferable that a configuration is provided to suppress the flow of water along the first connector terminal 36. For this purpose, for example, a plurality of first connector terminals 36 may be insert parts, and the first connector housing 32 may be injection-molded with resin.

[0045] The portion of the first connector terminal 36 protruding from the bottom portion 31a into the peripheral wall portion 31b is the terminal insertion portion 36a. The tip of the terminal insertion portion 36a is located deeper than the tip of the peripheral wall portion 31b.

[0046] Of the first connector terminals 36, the portion protruding from the bottom portion 31a on the side opposite to the peripheral wall portion 31b is the board connection portion 36b. The board connection portion 36b extends in an L shape on the side of the bottom portion 31a opposite to the peripheral wall portion 31b. The tip of the board connection portion 36b is inserted into a through hole formed in the mounting board 18 and soldered and connected to a circuit pattern formed in the mounting board 18.

[0047] The intermediate portions in the longitudinal direction of the plurality of first connector terminals 36 are held in a plurality of rows at the bottom portion 31a. In the present embodiment, the intermediate portions in the longitudinal direction of the plurality of first connector terminals 36 are held in four rows at the bottom portion 31a.

[0048] The board connection portions 36b of the plurality of first connector terminals 36 extend in an L shape so as to extend toward the mounting board 18 while keeping non-contact with each other outside the bottom portion 31a. For this reason, the lengths of the respective portions forming the L shape of the plurality of board connection portions 36b are different according to the extending positions from the bottom portion 31a. For example, the board connection portion 36b extending from a portion of the bottom portion 31a far from the mounting board 18 draws a larger L shape.

[0049] Note that the board connection portion 36b may be formed to extend linearly.

[0050] The first connector housing 32 has a finger insertion prevention protrusion 33 protruding from the bottomed cylindrical portion 31 so as to be located between the plurality of terminal insertion portions 36a (see FIGS. 3 to 5). In the present embodiment, the finger insertion prevention protrusion 33 is formed in a rectangular plate shape extending along the direction of the column between the columns in which the plurality of terminal insertion portions 36a are arranged. More specifically, the plurality of terminal insertion portions 36a are arranged in four rows. The central interval among the intervals between the respective rows is set to be larger than the other intervals, and the finger insertion prevention protrusion 33 is located between the central rows. A gap is provided between the finger insertion prevention protrusion 33 and the terminal insertion portion 36a.

[0051] The finger insertion prevention protrusion 33 preferably extends as a whole in the direction in which the plurality of terminal insertion portions 36a are arranged. In the present embodiment, a gap is formed at the central portion in the extending direction of the finger insertion prevention protrusion 33. Also, a gap is formed between the finger insertion prevention protrusion 33 and the peripheral wall portion 31b. These gaps are set to a size such that a finger does not enter deep inside.

[0052] The tip of the finger insertion prevention protrusion 33 is preferably the same as the tip of the peripheral wall portion 31b or located closer to the bottom portion 31a than the tip of the peripheral wall portion 31b. The tip of the terminal insertion portion 36a is preferably located closer to the bottom portion 31a side than the tip of the finger insertion prevention protrusion 33. As a result, the tip of the terminal insertion portion 36a is located closer to the bottom portion 31a side than the tips of the peripheral wall portion 31b and the finger insertion prevention protrusion 33. By setting the distance between the peripheral wall portion 31b and the finger insertion prevention protrusion 33 to a size such that a finger does not enter deep inside, it is possible to prevent a finger from entering the bottomed cylindrical portion 31 until it contacts the terminal insertion portion 36a.

[0053] The configuration of the finger insertion prevention protrusion 33 is not limited to the above example. For example, the finger insertion prevention protrusion may be one or a plurality of rod-shaped portions.

[0054] The first connector housing 32 protrudes from the bottom of the bottomed cylindrical portion 31 and includes a plurality of base end protrusions 34 that cover the base end portions of the plurality of terminal insertion portions 36a (see FIGS. 3 to 6).

[0055] In the present embodiment, the base end protrusion 34 is formed in a columnar shape protruding from the bottom portion 31a. The peripheral edge portion of the tip of the base end protrusion 34 may be subjected to curved surface processing. The base end protrusion 34 protrudes from the bottom surface of the bottom portion 31a and covers a part of the portion of the terminal insertion portion 36a that protrudes from the bottom surface. By burying a part of the first connector terminal 36 in the bottom portion 31a and the base end protrusion 34, the passage of water along the first connector terminal 36 is more reliably suppressed.

[0056] <Regarding the second connector> The second connector 40 includes a second connector housing 42, a plurality of second connector terminals 46, a water stop member 50, and a water stop member holder 54. In the second connector 40, the side connected to the first connector 30 may be referred to as the front side, and the side opposite thereto may be referred to as the rear side.

[0057] A plurality of second connector terminals 46 are held within the second connector housing 42. The water stop member 50 suppresses the entry of water into the second connector terminals 46 on the front side of the second connector housing 42. The water stop member holder 54 holds the water stop member 50 at a position on the front side of the second connector housing 42.

[0058] The second connector terminals 46 are configured to be connectable to the first connector terminals 36. The second connector terminals 46 are formed, for example, by pressing a metal plate or the like. The second connector terminals 46 include a cylindrical portion 47 and a wire connection portion 48 (see FIG. 6). The cylindrical portion 47 is a cylindrical portion into which the terminal insertion portion 36a is inserted. The wire connection portion 48 is a portion connected to one end of the wire 12. For example, the wire connection portion 48 includes a core wire crimping portion 48a crimped to the core wire 12a exposed at the end of the wire 12, and a covering crimping portion 48b crimped to the covering of the end of the wire 12. In the present embodiment, the cylindrical portion 47 and the wire connection portion 48 are linearly continuous.

[0059] The second connector housing 42 is a member formed of an insulating material such as resin. The second connector housing 42 is formed in a shape that can be fitted into the bottomed cylindrical portion 31 of the first connector housing 32. In the present embodiment, the front portion of the second connector housing 42 is formed in a rectangular parallelepiped block shape that can enter into the bottomed cylindrical portion 31.

[0060] A plurality of second connector terminals 46 are held by a second connector housing 42 at positions connectable to a corresponding plurality of first connector terminals 36. More specifically, the second connector housing 42 has a plurality of terminal accommodation chambers 43 that separately accommodate the plurality of second connector terminals 46. The plurality of terminal accommodation chambers 43 are formed in the same positional relationship as the arrangement of the plurality of terminal insertion portions 36a. Therefore, the corresponding terminal insertion portion 36a can be inserted and connected to the second connector terminal 46 accommodated in each of the plurality of terminal accommodation chambers 43.

[0061] The terminal accommodation chamber 43 is formed in a hole shape penetrating from the front side to the rear side of the second connector housing 42. No slits or holes are formed in the partition 43W between adjacent terminal accommodation chambers 43. Therefore, the plurality of terminal accommodation chambers 43 are partitioned in a water-stopping state where water does not flow between adjacent positions.

[0062] In the terminal accommodation chamber 43, a locking piece 43a that hooks on a recess formed in the cylindrical portion 47 of the second connector terminal 46 protrudes. The locking piece 43a is an elastic piece portion supported in a cantilevered manner so as to be away from the inner surface of the terminal accommodation chamber 43, and no slit is formed in the partition 43W even at the portion where the locking piece 43a is formed.

[0063] A terminal receiving portion 43b that can be disposed opposite to the tip of the cylindrical portion 47 of the second connector terminal 46 is formed in the front opening of the terminal accommodation chamber 43. When the second connector terminal 46 is inserted into the terminal accommodation chamber 43 from the rear opening, the tip of the second connector terminal 46 is received by the terminal receiving portion 43b, and the locking piece 43a engages with the cylindrical portion 47 to prevent removal. Thereby, the second connector terminal 46 is held in the terminal accommodation chamber 43.

[0064] In the above state, the tip of the cylindrical portion 47 faces the front side. The terminal insertion portion 36a enters the terminal accommodation chamber 43 through a position where the terminal receiving portion 43b does not exist and is inserted and connected to the cylindrical portion 47.

[0065] Inside the second connector housing 42, a plurality of terminal accommodation chambers 43 are partitioned from each other in a water-stopped state. Therefore, even when water enters a part of the plurality of terminal accommodation chambers 43 inside the second connector housing 42, the entry of the water into other terminal accommodation chambers 43 is suppressed.

[0066] The plurality of terminal accommodation chambers 43 open to the rear side opposite to the first connector 30. The electric wire 12 connected to the second connector terminal 46 accommodated in the terminal accommodation chamber 43 extends outside the second connector housing 42 through the rear opening. The entry of water from the rear opening into the terminal accommodation chamber 43 is suppressed by the following configuration.

[0067] That is, the second connector housing 42 has a rear peripheral wall portion 45. The rear peripheral wall portion 45 is a rectangular annular portion that extends further rearward than the rear opening of the terminal accommodation chamber 43. The rear peripheral wall portion 45 collectively surrounds a plurality of electric wires 12 extending from the plurality of second connector terminals 46. Therefore, the plurality of electric wires 12 extend through the inside of the rear peripheral wall portion 45.

[0068] A rear water-stopping member 45S and a rear pressing member 45R are provided inside the rear peripheral wall portion 45.

[0069] The rear water-stopping member 45S is a plate-like member that can be disposed inside the rear peripheral wall portion 45 and is formed of an elastic material such as rubber. A plurality of electric wire press-fitting holes 45Sh are formed in the rear water-stopping member 45S. The plurality of electric wire press-fitting holes 45Sh are formed in the same arrangement as the plurality of terminal accommodation chambers 43. The minimum diameter of the electric wire press-fitting hole 45Sh is smaller than the diameter of the electric wire 12. Therefore, in a state where the electric wire 12 is inserted into the electric wire press-fitting hole 45Sh, the inner peripheral portion of the electric wire press-fitting hole 45Sh can be in close contact with the outer peripheral portion of the electric wire 12. Preferably, an annular lip protruding annularly is formed on the inner peripheral portion of the electric wire press-fitting hole 45Sh, and the annular lip is in close contact with the outer peripheral portion of the electric wire 12.

[0070] The rear pressing member 45R is a plate-like member that can be arranged inside the rear opening side of the rear peripheral wall portion 45 and is formed of resin or the like. The rear pressing member 45R is located on the side opposite to the second connector housing 42 with respect to the rear water stop member 45S, and presses the rear water stop member 45S against the rear side surface of the second connector housing 42. An electric wire passing hole 45Rh through which the electric wire 12 passes is formed in the rear pressing member 45R.

[0071] A locking protrusion 45Ra is formed on the outer peripheral portion of the rear pressing member 45R, and a locking recess for locking the locking protrusion 45Ra is formed in the rear peripheral wall portion 45 (see FIG. 3). With the rear water stop member 45S arranged between the second connector housing 42 and the rear pressing member 45R, the locking protrusion 45Ra is locked in the locking recess to prevent removal, so that the rear water stop member 45S is pressed against the rear surface of the second connector housing.

[0072] At the rear side of the second connector housing 42, the electric wire 12 extends outward through the electric wire press-fitting hole 45Sh of the rear water stop member 45S and the electric wire passing hole 45Rh of the rear pressing member 45R. When the inner peripheral portion of the electric wire press-fitting hole 45Sh contacts the electric wire 12, it is possible to suppress water from entering the second connector housing 42 along the outer periphery of the electric wire 12. Further, the rear water stop member 45S is pressed against the second connector housing 42 by the rear pressing member 45R. For this reason, the peripheral edge portion of the rear opening of each terminal accommodation chamber 43 in the second connector housing 42 is pressed against the rear water stop member 45S. For this reason, it is also possible to suppress water from entering the terminal accommodation chamber 43 through between the second connector housing 42 and the rear water stop member 45S. In this way, the entry of water from the rear opening side of the terminal accommodation chamber 43 is suppressed.

[0073] The second connector housing 42 further has a protrusion receiving chamber 44 into which the finger insertion prevention protrusion 33 is inserted. The protrusion receiving chamber 44 is formed in the second connector housing 42 in the same positional relationship as the positional relationship of the finger insertion prevention protrusion 33 with respect to the plurality of terminal insertion portions 36a. That is, in the second connector housing 42, a plurality of terminal accommodation chambers 43 are formed in a plurality of rows (here, four rows), and the protrusion receiving chamber 44 is formed at the center of the plurality of rows. In the present embodiment, two protrusion receiving chambers 44 are formed so as to be arranged in a straight line corresponding to the two finger insertion prevention protrusions 33.

[0074] The protrusion receiving chamber 44 is formed in a groove shape having a width larger than the thickness of the finger insertion prevention protrusion 33 and a length larger than the length of the finger insertion prevention protrusion 33. The finger insertion prevention protrusion 33 is inserted into the protrusion receiving chamber 44 without strongly interfering with the inner peripheral surface of the protrusion receiving chamber 44, that is, without being given a resistance force that hinders insertion.

[0075] Also, in a state where the second connector 40 is fitted into the bottomed cylindrical portion 31 of the first connector 30, it is set so that the tip of the finger insertion prevention protrusion 33 does not interfere with the back side portion of the protrusion receiving chamber 44. In the present embodiment, the protrusion receiving chamber 44 is formed in a bottomed groove shape that is open on the front side but closed on the back side. In a state where the second connector 40 is fitted into the bottomed cylindrical portion 31 of the first connector 30, the bottom of the protrusion receiving chamber 44 is located farther from the first connector 30 than the tip of the finger insertion prevention protrusion 33. For this reason, when the second connector 40 is fitted into the bottomed cylindrical portion 31 of the first connector 30, the protrusion receiving chamber 44 can receive the finger insertion prevention protrusion 33 so as not to hinder the fitting. Note that the protrusion receiving chamber 44 may be open on the back side of the second connector housing 42. In this case, even if water enters the protrusion receiving chamber 44, it is assumed that the water will easily escape to the outside.

[0076] The above-mentioned protrusion receiving chamber 44 is partitioned from the plurality of terminal accommodating chambers 43 in a water-tight state. That is, slits and holes are not formed in the partition 44W that partitions the protrusion receiving chamber 44 and the terminal accommodating chamber 43. For this reason, inside the second connector housing 42, it is partitioned in a water-tight state where water does not flow back and forth between the protrusion receiving chamber 44 and the terminal accommodating chamber 43.

[0077] The water-tight structure at the rear part of the second connector housing 42 is not limited to the above configuration. For example, the electric wire 12 may be sealed by individual cylindrical rubber plugs.

[0078] <Regarding the water-tight structure on the front side of the second connector> In a state where the second connector housing 42 is fitted into the bottomed cylindrical portion 31 of the first connector housing 32, the front opening on the terminal insertion side where the terminal insertion portion 36a of the plurality of terminal accommodating chambers 43 is inserted is made water-tight. Also, in this state, the space between the front opening on the protrusion insertion side where the finger insertion suppressing protrusion 33 of the protrusion receiving chamber 44 is inserted and the front opening of the terminal accommodating chamber 43 is made water-tight.

[0079] That is, as described above, the second connector 40 includes a water-tight member 50 and a water-tight member holder 54. By the water-tight member 50 coming into contact with each part, the above-mentioned water-tightness is achieved.

[0080] The water-tight member 50 is a member formed in a plate shape from an elastic material such as rubber, and spreads so as to cover the front surface of the second connector housing 42. In the present embodiment, the water-tight member 50 is formed in a rectangular plate shape that covers the entire front surface of the second connector housing 42.

[0081] The water-tight member 50 has a plurality of terminal sealing holes 51h. The plurality of terminal sealing holes 51h are formed in the same arrangement as the plurality of base end protrusions 34 of the first connector housing 32. The base end protrusions 34 are inserted into each of the plurality of terminal sealing holes 51h (see FIGS. 5 and 6).

[0082] The minimum inner diameter of the hole portion 51h for terminal sealing is set to be the same as or smaller than the outer diameter of the proximal end protrusion 34. In the present embodiment, an annular terminal sealing portion 51a is formed on the inner peripheral portion of the hole portion 51h for terminal sealing. The annular terminal sealing portion 51a may have a sealing structure sometimes called a lip portion. The annular terminal sealing portion 51a is an annular portion that partially protrudes in the penetrating direction of the hole portion 51h for terminal sealing. The minimum inner diameter of this annular terminal sealing portion 51a is set to be smaller than the outer diameter of the proximal end protrusion 34.

[0083] Then, in a state where the second connector housing 42 is fitted into the bottomed cylindrical portion 31 of the first connector housing 32, the outer peripheral portions of the plurality of proximal end protrusions 34 are in contact with the respective annular terminal sealing portions 51a of the plurality of hole portions 51h for terminal sealing. At this time, when the annular terminal sealing portion 51a elastically deforms, the annular terminal sealing portion 51a is effectively pressed against the outer peripheral portion of the proximal end protrusion 34. Each of the plurality of hole portions 51h for terminal sealing is located on an extension of the front opening of the corresponding plurality of terminal accommodation chambers 43. As described above, by preventing water from passing between the hole portion 51h for terminal sealing and the proximal end protrusion 34, the front opening of the terminal accommodation chamber 43 is sealed against water.

[0084] The water stop member 50 also has a role of preventing water from passing between the front opening of the protrusion receiving chamber 44 and the front opening of the terminal accommodation chamber 43.

[0085] That is, the second connector housing 42 has an annular protrusion 42p that protrudes from the front opening of the protrusion receiving chamber 44 (see FIG. 2). In the present embodiment, the annular protrusion 42p is formed so as to protrude forward from the front opening edges of the two protrusion receiving chambers 44. The shape of the inner peripheral surface of the annular protrusion 42p is a shape in which the inner peripheral surface of the protrusion receiving chamber 44 is extended forward in the same shape. The outer peripheral surface of the annular protrusion 42p is formed in a shape enlarged by adding the thickness of the annular protrusion 42p to the inner peripheral surface of the protrusion receiving chamber 44. Here, the shape of the outer peripheral surface of the annular protrusion 42p is formed in a shape in which the ends of a pair of rectangular surfaces facing each other with a gap are connected at both ends via a semi-circular arc-shaped peripheral surface.

[0086] The water stop member 50 is formed with a seal hole 52h into which the annular protrusion 42p can be inserted. The narrowest part of the inner peripheral portion of the seal hole 52h is the same as or smaller than the outer peripheral portion of the annular protrusion 42p.

[0087] In the present embodiment, an annular seal protrusion 52a is formed on the inner peripheral portion of the seal hole 52h. The annular seal protrusion 52a may have a seal structure sometimes called a lip portion. The annular seal protrusion 52a is an annular portion that extends along the inner peripheral direction of the seal hole 52h in a state of partially protruding in the penetrating direction of the seal hole 52h. The top of this annular seal protrusion 52a is set to be smaller than the outer peripheral portion of the annular protrusion 42p.

[0088] With the second connector housing 42 fitted into the bottomed cylindrical portion 31 of the first connector housing 32, the outer peripheral portions of the plurality of annular protrusions 42p come into contact with the annular seal protrusion 52a of the seal hole 52h. At this time, when the annular seal protrusion 52a elastically deforms, the annular seal protrusion 52a is effectively pressed against the outer peripheral portion of the annular protrusion 42p.

[0089] The inner peripheral surface of the protrusion receiving chamber 44 is continuous with the inner peripheral surface of the terminal accommodating chamber 43 adjacent to the protrusion receiving chamber 44 through the inner surface of the annular protrusion 42p, the leading edge of the annular protrusion 42p, and the outer surface of the annular protrusion 42p, which are located on the front opening side of the protrusion receiving chamber 44. For this reason, assuming that there is no water stop member 50, the water that has entered the protrusion receiving chamber 44 may enter the terminal accommodating chamber 43 adjacent to the protrusion receiving chamber 44 through the surface of the annular protrusion 42p. If the above annular protrusion 42p is not present, the water that has entered the protrusion receiving chamber 44 may enter the terminal accommodating chamber 43 along the portion between the protrusion receiving chamber 44 and the terminal accommodating chamber 43 adjacent thereto on the front surface of the second connector housing 42.

[0090] In the present embodiment, since the outer peripheral portion of the annular protrusion 42p is in contact with the inner peripheral portion of the seal hole portion 52h of the water stop member 50, the contact portion seals the space between the front opening of the terminal accommodation chamber 43 and the front opening of the protrusion receiving chamber 44. Therefore, even if water enters the terminal accommodation chamber 43, the entry of the water into the protrusion receiving chamber 44 is suppressed.

[0091] In particular, since the annular seal protrusion 52a is formed on the inner peripheral portion of the seal hole portion 52h, the annular seal protrusion 52a is effectively elastically deformed and pressed against the outer peripheral portion of the annular protrusion 42p.

[0092] Note that, in the thickness direction of the water stop member 50, the positions of the annular terminal seal portion 51a and the annular seal protrusion 52a may be displaced. As a result, the annular terminal seal portion 51a and the annular seal protrusion 52a can be effectively elastically deformed without pressing against each other, and can be effectively pressed against the base end protrusion 34 and the annular protrusion 42p, respectively.

[0093] The water stop member holder 54 is a member that holds the water stop member 50 at the front position of the first connector housing 32 and is formed of resin or the like.

[0094] The water stop member holder 54 has a pressing plate portion 55 and a locking piece 57.

[0095] The pressing plate portion 55 is formed in a plate shape that is the same as or wider than the water stop member 50. The surface of the pressing plate portion 55 on the side of the water stop member 50 is the pressing surface 55F. The pressing surface 55F can be located on the side opposite to the front surface of the second connector housing 42 with respect to the water stop member 50. In this state, the pressing surface 55F can contact the water stop member 50 from the side opposite to the second connector housing 42. By holding the pressing surface 55F at a fixed position with respect to the front surface of the second connector housing 42, the pressing surface 55F can press the water stop member 50 against the front surface of the second connector housing 42.

[0096] A frame portion 56 is formed on the periphery of the pressing plate portion 55. The frame portion 56 is an annular frame portion that protrudes from the periphery of the pressing plate portion 55 toward the second connector housing 42 side. The frame portion 56 can serve to surround the periphery of the water stop member 50 that is overlapped on the second connector housing 42 side of the pressing plate portion 55 and hold the water stop member 50 in a fixed position.

[0097] A positioning groove 50g may be formed in one of the water stop member 50, the pressing plate portion 55, and the frame portion 56, and a positioning convex portion 55p may be formed in the other (see FIG. 6). In this case, when the positioning convex portion 55p fits into the positioning groove 50g, the water stop member 50 is more reliably positioned in a fixed position with respect to the water stop member holder 54.

[0098] The locking piece 57 locks to the second connector housing 42 and presses the water stop member 50 against the front surface of the second connector housing 42 by the pressing surface 55F.

[0099] In the present embodiment, the locking pieces 57 extend from each edge of the pressing plate portion 55. The locking pieces 57 extend rearward along the outer peripheral surface of the second connector housing 42 from the edge of the pressing plate portion 55. The locking pieces 57 are formed in a plate shape and are configured to be elastically deformable in the inner and outer directions. A locking groove 57g is formed in the locking piece 57.

[0100] A locking protrusion 42q that can be locked to the locking groove 57g is formed on the outer peripheral surface of the second connector housing 42. The locking protrusion 42q is a protrusion formed in a shape corresponding to the locking groove 57g of each locking piece 57. The locking protrusion 42q has an inclined surface 42q1 whose height gradually decreases toward the front of the second connector housing 42 (see FIG. 6). The rear end portion of the locking protrusion 42q has a retaining surface 42q2 that is orthogonal to the front-rear direction of the second connector housing 42 (see FIG. 6).

[0101] With the water stop member 50 accommodated in the space surrounded by the pressing plate portion 55 and the frame portion 56, the water stop member 50 is pressed toward the front surface of the second connector housing 42. Then, each locking piece 57 moves from the front along the outer peripheral surface of the second connector housing. When the locking piece 57 reaches the locking projection 42q, the tip of the locking piece 57 rides on the inclined surface 42q1 and elastically deforms outward. When the locking projection 42q reaches the locking groove 57g, the locking piece 57 returns to its original shape by its own elastic force, and the locking projection 42q fits into the locking groove 57g and locks to the locking piece 57. As a result, the pressing surface 55F is held at a predetermined position at a certain distance from the front surface of the second connector housing 42. The water stop member 50 is sandwiched between the front surface of the second connector housing 42 and the pressing surface 55F and is pressed toward the pressing surface 55F. Since the front side opening portions of the respective terminal accommodation chambers 43 in the front surface of the second connector housing 42 are pressed against the water stop member 50, water stop is also achieved between the second connector housing 42 and the water stop member 50. Preferably, a narrow portion 42r narrower than the distance between the terminal accommodation chambers 43 is formed in a portion between adjacent terminal accommodation chambers 43 in the front surface of the second connector housing 42 (see FIG. 6). By strongly pressing this narrow portion 42r against the water stop member 50, more effective water stop is achieved between the front surface of the second connector housing 42 and the water stop member 50.

[0102] The configuration for holding the water stop member 50 at the front side position of the second connector housing 42 is not limited to the above example. For example, the water stop member 50 may be held at the front portion of the second connector housing 42 by an adhesive or a fitting structure. The water stop member 50 may be pressed toward the second connector housing 42 by the fitting connection structure between the first connector 30 and the second connector 40.

[0103] <Effects, etc.> According to the connector device 20 and the wiring device 10 configured as described above, in the second connector 40 connected to the first connector 30 provided with the finger insertion prevention protrusion 33, a plurality of terminal accommodation chambers 43 are partitioned in a water-stopped state, and the protrusion receiving chamber 44 is partitioned from the plurality of terminal accommodation chambers 43. Therefore, in the second connector housing 42, the flow of water between the terminal accommodation chambers 43 and the flow of water between the terminal accommodation chamber 43 and the protrusion receiving chamber 44 are suppressed. Further, in a state where the second connector housing 42 is fitted into the bottomed cylindrical portion 31 of the first connector housing 32, the front-side opening, which is the terminal insertion-side opening of the plurality of terminal accommodation chambers 43, is water-stopped, and the front-side opening, which is the protrusion insertion-side opening of the protrusion receiving chamber 44, and the front-side opening of the terminal accommodation chamber 43 are also water-stopped. Therefore, it is difficult for the entry of water into some of the terminal accommodation chambers 43 to affect other terminal accommodation chambers 43. Further, even if water enters the protrusion receiving chamber 44, the entry of water into the terminal accommodation chamber 43 is suppressed. Thereby, in the second connector 40, the entry of water into the terminal accommodation chamber 43 due to the configuration for receiving the finger insertion prevention protrusion 33 is suppressed.

[0104] Further, the second connector housing 42 has an annular protrusion 42p, and by the inner peripheral portion of the seal hole portion 52h of the water-stopping member 50 coming into contact with the outer peripheral portion of the annular protrusion 42p, the front-side opening of the protrusion receiving chamber 44 and the front-side openings of the plurality of terminal accommodation chambers 43 are water-stopped. Therefore, when inserting the finger insertion prevention protrusion 33 into the protrusion receiving chamber 44, contact between the water-stopping member 50 and the finger insertion prevention protrusion 33 can be avoided. Thereby, it is possible to suppress an increase in the fitting resistance when fitting the second connector housing 42 into the first connector housing 32.

[0105] Here, it is conceivable that the sealing hole portion of the water stop member contacts around the finger insertion prevention protrusion 33 to block the opening of the protrusion receiving chamber 44, thereby preventing water leakage between the front side opening of the protrusion receiving chamber 44 and the front side openings of the plurality of terminal accommodation chambers 43. However, in this case, when connecting the first connector 30 and the second connector 40, it is necessary to press-fit the finger insertion prevention protrusion 33 into the sealing hole portion of the water stop member, and accordingly, it is considered that the insertion resistance increases. In particular, when the connector device 20 is a multi-pole connector, since a large number of terminal insertion portions 36a are simultaneously inserted into the cylindrical portion 47, the insertion resistance tends to increase. When the insertion resistance for press-fitting the finger insertion prevention protrusion 33 is added to this, the connection operation between the first connector 30 and the second connector 40 becomes difficult.

[0106] In this embodiment, since it does not cause an increase in the insertion resistance due to the finger insertion prevention protrusion 33, it is particularly effective when the connector device 20 is a multi-pole connector.

[0107] In addition, when applied to a connector with a small number of poles or the like, if there is no problem even if the above insertion resistance increases, a configuration may be adopted in which the sealing hole portion of the water stop member contacts around the finger insertion prevention protrusion 33 to block the opening of the protrusion receiving chamber 44, thereby preventing water leakage between the front side opening of the protrusion receiving chamber 44 and the front side openings of the plurality of terminal accommodation chambers 43.

[0108] Further, since the annular seal protrusion 52a is formed on the inner peripheral portion of the sealing hole portion 52h, the annular seal protrusion 52a can be pressed against the outer peripheral portion of the annular protrusion 42p while being elastically deformed so as to compress the annular seal protrusion 52a. Thereby, the sealing performance at the outer peripheral portion of the annular protrusion 42p can be enhanced.

[0109] Further, the first connector housing 32 includes a plurality of base end protrusions 34 that cover the base end portions of the respective plurality of terminal insertion portions 36a. The water stop member 50 has a plurality of terminal seal holes 51h into which the respective base end protrusions 34 are inserted. In a state where the second connector housing 42 is fitted into the bottomed cylindrical portion 31 of the first connector housing 32, the outer peripheral portion of each of the plurality of base end protrusions 34 contacts each of the plurality of terminal seal holes 51h, and the front side openings between the plurality of terminal accommodation chambers 43 are sealed against water. Therefore, the water stop member 50 can serve to individually seal the plurality of terminal accommodation chambers 43 and to seal between the front side opening of the terminal accommodation chamber 43 and the front side of the plurality of terminal accommodation chambers.

[0110] Further, by pressing the water stop member 50 against the front surface of the second connector housing 42 with the water stop member holder 54, it is possible to more effectively suppress the intrusion of water passing between the water stop member 50 and the front surface of the second connector housing 42.

[0111] When the connector device 20 is used in combination with a third connector 14 that is a non-waterproof connector, there is a possibility that water may enter a part of the plurality of terminal accommodation chambers 43 along the core wire 12a in the electric wire 12. In this case, since the plurality of terminal accommodation chambers 43 are individually sealed against water, it is suppressed that the water that has entered a part of the terminal accommodation chambers 43 enters other terminal accommodation chambers 43. Also, the water in a part of the terminal accommodation chambers 43 hardly enters the protrusion receiving chamber 44. Thereby, it is possible to minimize the overall influence caused by the intrusion of water into a part of the terminal accommodation chambers 43.

[0112] That is, by using the present connector device 20, even if the connector at the other end of the electric wire 12 is a non-waterproof connector, it is suppressed that the intrusion of a part of water affects the whole.

[0113] In addition, the respective configurations described in the above embodiments and each modification can be appropriately combined as long as they do not contradict each other.

Description of Reference Numerals

[0114] 10 Wiring device 12 Electric wire 12a Core wire 12b Coating 14 Third connector 15 Third connector housing 16 Third connector terminal 18 Mounting board 19 Case 20 Connector device 30 First connector 31 Bottomed cylindrical part 31a Bottom 31b Peripheral wall part 32 First connector housing 33 Finger insertion prevention projection 34 Base end projection 36 First connector terminal 36a Terminal insertion part 36b Board connection part 40 Second connector 42 Second connector housing 42p Annular projection 42q Locking projection 42q1 Inclined surface 42q2 Withdrawal prevention surface 42r Narrow part 43 Terminal housing chamber 43W Partition 43a Locking piece 43b Terminal receiving part 44 Projection receiving chamber 44W Partition 45 Rear peripheral wall part 45R Rear pressing member 45Ra Locking projection 45Rh Electric wire passing hole 45S Rear water stop member 45Sh Electric wire press-fitting hole 46 Second connector terminal 47 Cylindrical part 48 Electric wire connection part 48a Core wire crimping part 48b Coating crimping part 50 Water stop member 50g Positioning groove 51a Annular terminal seal part Hole for 51h terminal seal 52a Annular seal protrusion Hole for 52h seal Water stop member holder 54 Pressing plate part 55 Pressing surface 55F Positioning convex part 55p Frame part 56 Locking piece 57 Locking groove 57g

Claims

1. A first connector including a first connector housing having a bottomed cylindrical portion and a plurality of first connector terminals having terminal insertion portions, wherein the plurality of first connector terminals are each held by the first connector housing with the respective terminal insertion portion protruding from the bottom of the bottomed cylindrical portion; A second connector including a second connector housing fitted into the bottomed cylindrical portion and a plurality of second connector terminals held by the second connector housing at positions connectable to the plurality of first connector terminals; Comprising; The first connector housing has a finger insertion prevention protrusion protruding from the bottom of the bottomed cylindrical portion so as to be located between the plurality of terminal insertion portions; The second connector housing has a plurality of terminal accommodation chambers that separately accommodate the plurality of second connector terminals and are partitioned in a water-stop state between adjacent positions, and a protrusion receiving chamber into which the finger insertion prevention protrusion is inserted and that is partitioned in a water-stop state with respect to the plurality of terminal accommodation chambers; With the second connector housing fitted into the first connector housing, the gaps between the terminal insertion side openings into which the terminal insertion portions are inserted among the plurality of terminal accommodation chambers are water-stopped, and the gap between the protrusion insertion side opening into which the finger insertion prevention protrusion is inserted and the plurality of terminal insertion side openings among the protrusion receiving chambers is water-stopped; The second connector housing has an annular protrusion protruding from the opening into which the finger insertion prevention protrusion is inserted among the protrusion receiving chambers; The second connector includes a water-stop member disposed on the distal end side of the second connector housing and having a seal hole portion into which the annular protrusion can be inserted; A connector device in which an outer peripheral portion of the annular protrusion contacts an inner peripheral portion of the seal hole portion to water-stop the gap between the protrusion insertion side opening and the plurality of terminal insertion side openings, and further, the annular protrusion avoids contact between the water-stop member and the finger insertion prevention protrusion when the finger insertion prevention protrusion is inserted into the protrusion receiving chamber.

2. The connector device according to claim 1, The connector device, wherein an annular seal protrusion that partially protrudes in the penetrating direction of the seal hole portion and contacts the outer peripheral portion of the annular protrusion is formed on the inner peripheral portion of the seal hole portion.

3. The connector device according to claim 1 or claim 2, The first connector housing partially protrudes from the bottom of the bottomed cylindrical portion and includes a plurality of base end protrusions that cover base end portions of the plurality of terminal insertion portions. The water stop member has a plurality of terminal seal holes into which the respective base end protrusions are inserted. A connector device in which, in a state where the second connector housing is fitted into the first connector housing, the outer peripheral portions of the respective base end protrusions are in contact with the respective ones of the plurality of terminal seal holes, and the spaces between the plurality of terminal insertion side openings are sealed against water.

4. A connector device according to any one of Claims 1 to 3, wherein the second connector further includes a water stop member holder having a pressing surface located on the side opposite to the front surface on the first connector housing side of the second connector housing with respect to the water stop member, and a locking piece that locks to the second connector housing and presses the water stop member against the front surface of the second connector housing by the pressing surface.

5. A connector device according to any one of Claims 1 to 4, a plurality of electric wires each including a core wire and an outer covering and connected to the respective ones of the plurality of second connector terminals and extending from the second connector housing, a third connector connected to an end portion of the plurality of electric wires on the side opposite to the second connector, and a wiring device in which, in the third connector, the end portions of the plurality of electric wires communicate with a space outside the third connector in a state where water from the outside can reach the core wires.

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