Rubber plug unit and connector

Abstract

The rubber plug unit (10, 10A, 10B) includes terminals (13, 13A, 14, 14A), a wire (11), and rubber plugs (12, 12A, 12B) that are in close contact with the outer periphery of the wire (11). The wire (11) has a conductive portion (22) that connects to the terminals (13, 13A, 14, 14A). The rubber plugs (12, 12A, 12B) have a retaining portion (17) that is clamped between the terminals (13, 13A, 14, 14A) and the wire (11). The conductive portion (22) and the retaining portion (17) are arranged to overlap in the axial (X) direction of the wire (11).

Description

Technical Field

[0001] This disclosure relates to rubber plug units and connectors. Background Technology

[0002] The connector disclosed in Patent Document 1 includes: a wire, a wire receptacle portion and an insulating receptacle portion held in the terminal; and a rubber plug (sealing body) integrally provided with the wire and terminal in such a way as to cover the insulating receptacle portion.

[0003] Patent Document 2 discloses a connector comprising a wire with a wire connection portion for connecting terminals, and a rubber plug (sealing member) through which the wire is inserted.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2015-90843

[0007] Patent Document 2: Japanese Patent Application Publication No. 2017-216202 Summary of the Invention

[0008] The problem that the invention aims to solve

[0009] In the cases of Patent Documents 1 and 2, it is possible for the rubber plug to be axially misaligned relative to the wire. To address this, a structure can be adopted in which the rubber plug is held between the insulating sleeve of the terminal and the wire, thus limiting misalignment of the rubber plug relative to the wire. However, when the portion of the rubber plug held by the insulating sleeve and the portion of the wire connected by the sleeve are arranged axially, it is possible to increase the size of the unit including the rubber plug and the connector.

[0010] Therefore, this disclosure aims to provide rubber plug units and connectors that avoid large-scale manufacturing.

[0011] Solution for solving the problem

[0012] The rubber plug unit disclosed herein includes a terminal, a wire, and a rubber plug that is in close contact with the outer periphery of the wire. The wire has a conductive portion that is connected to the terminal, and the rubber plug has a retaining portion that is clamped between the terminal and the wire. The conductive portion and the retaining portion are arranged to overlap in the axial direction of the wire.

[0013] Invention Effects

[0014] According to this disclosure, a rubber plug unit that avoids large size can be provided. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connector installed in the housing in Embodiment 1.

[0016] Figure 2 This is an exploded side view of the rubber plug unit.

[0017] Figure 3 This is a side view of the rubber plug unit.

[0018] Figure 4 This is an enlarged side view of the main part of the rubber plug unit.

[0019] Figure 5 yes Figure 4 A sectional view along line AA.

[0020] Figure 6 This is an enlarged side view of the main part of the rubber plug unit in front of the connecting terminal in Embodiment 2.

[0021] Figure 7 This is an enlarged side view of the main part of the rubber plug unit.

[0022] Figure 8 This is an enlarged side view of the main part of the rubber plug unit in front of the connecting terminal in Embodiment 3. Detailed Implementation

[0023] [Description of embodiments of this disclosure]

[0024] First, embodiments of this disclosure will be described.

[0025] The rubber plug unit disclosed herein,

[0026] (1) The device comprises a terminal, a wire, and a rubber plug that is tightly attached to the outer periphery of the wire. The wire has a conductive portion that connects to the terminal, and the rubber plug has a retaining portion that is clamped between the terminal and the wire. The conductive portion and the retaining portion are arranged to overlap in the axial direction of the wire. In this way, when the conductive portion and the retaining portion are arranged to overlap in the axial direction of the wire, the rubber plug unit can be prevented from becoming too large in the axial direction.

[0027] (2) Preferably, the wire is a single-core wire. A single-core wire has the rigidity to maintain a certain shape, thus it can well maintain the overlapping arrangement of the conducting part and the holding part.

[0028] (3) Preferably, the conductive portion and the retaining portion are arranged circumferentially on the wire, and the terminal has a general-purpose sleeve portion that comprehensively surrounds the conductive portion and the retaining portion. Accordingly, the general-purpose sleeve portion can serve both the function of connecting to the wire (function of the wire sleeve portion) and the function of retaining the rubber plug (function of the insulating sleeve portion). As a result, compared with known terminals in which the wire sleeve portion and the insulating sleeve portion are arranged axially, the overall length of the terminal can be shortened axially.

[0029] (4) Preferably, a protrusion is provided on the inner periphery of the general-purpose cylindrical portion to contact the conductive portion. Accordingly, the terminal can make good contact with the conductive portion by means of the protrusion.

[0030] In addition, the connector disclosed herein,

[0031] (1) The connector comprises the aforementioned rubber plug unit and a connector housing with a cavity, wherein the wire is a single-core wire, and a sealing lip is provided on the outer periphery of the rubber plug to fit tightly against the inner periphery of the cavity. With this structure, a liquid-tight seal can be maintained between the rubber plug and the connector housing, as well as inside the wire. As a result, oil and other contaminants can be prevented from flowing back to the mating surfaces of the connector and the other connector.

[0032] (2) Preferably, the conductive portions are arranged axially on both sides of the wire, separated by the sealing lip. One of the conductive portions arranged on both sides is connected to a connecting terminal that can contact the other terminal, and the other conductive portion is connected to a connector terminal that connects to the flexible sheathed wire. The sheathed wire is arranged on the outside of the connector housing. Because the flexible sheathed wire is arranged on the outside of the connector housing, the freedom of wiring processing is improved. Even if oil or the like enters the interior of the sheathed wire, the rubber plug and the connector housing, as well as the wire itself (which is a single core), are kept liquid-tight, preventing oil or the like from meandering towards the connecting terminal. As a result, the reliability of the connection between the connecting terminal and the other terminal is ensured.

[0033] [Details of the embodiments of this disclosure]

[0034] Specific examples of this disclosure are described below with reference to the accompanying drawings. Furthermore, the invention is not limited to these examples, but is intended, through the claims, to include all modifications of the same meaning and scope as the claims.

[0035] <Example 1>

[0036] For example, such as Figure 1As shown, the rubber plug unit 10 of Embodiment 1 is disposed on the connector 80, which is mounted to the automatic transmission housing 90 of an automobile by means of an O-ring seal 95. The connector 80 has a connector housing 81 made of synthetic resin. The rubber plug unit 10 includes a wire 11, a rubber plug 12, and terminals 13 and 14. Terminals 13 and 14 are composed of a connecting terminal 13 and a connector terminal 14. The rubber plug unit 10 is housed in a cavity 82 of the connector housing 81. The connector housing 81 is fitted with a counterpart connector housing (not shown). The connecting terminal 13 is electrically connected to a counterpart terminal (not shown) housed in the counterpart connector housing. In addition, X and Y in each figure represent axial X and circumferential Y, respectively. Axial X corresponds to the direction of the long side of the rubber plug unit 10 and the extension direction of the wire 11. Circumferential Y is the direction about the axis, which corresponds to the direction along the outer periphery of the wire 11. In addition, in the following description, the "front side" of axial X is Figure 1 The upper side and Figure 2 The left side becomes the side that fits into the connector housing of the other party. The "rear side" of the axial X is the opposite side of the "front side", which is equivalent to... Figure 1 The lower side and Figure 2 On the right side. In the case of Embodiment 1, the connecting terminal 13 is located axially X-direction ahead of the connector terminal 14. These directions are for illustrative purposes only and do not limit the actual direction in use.

[0037] The wire 11 is configured as a single-core wire without an insulating sheath. The wire 11 is cylindrical and has rigidity to maintain a certain shape. In this embodiment 1, the wire 11 is axially X ( Figure 2 It has a shape that extends in a straight line in the left and right directions.

[0038] The rubber plug 12 is made of oil-resistant rubber material. The rubber plug 12 is integrally cylindrical and positioned with its axis oriented axially (X) toward the wire 11. For example... Figure 5 As shown, a sealing hole 15 is provided axially through the center of the rubber plug 12. Figure 2 As shown, the rubber plug 12 has a sealing body 16 and a pair of retaining portions 17 connected to both sides of the sealing body 16 in the axial direction X.

[0039] A plurality of sealing lips 18 are provided protrudingly on the outer periphery of the sealing body 16. Each sealing lip 18 is arranged axially X-oriented on the outer periphery of the sealing body 16. Each sealing lip 18 is provided throughout the entire outer periphery of the sealing body 16. A plurality of inner peripheral lips (not shown) are provided on the inner periphery of the sealing hole 15 of the sealing body 16.

[0040] The wire 11 is liquid-tightly inserted into the sealing hole 15 of the rubber plug 12. Each inner circumferential lip is compressed tightly against the outer circumference of the wire 11. Thus, a liquid-tight seal is formed between the rubber plug 12 and the wire 11. As described above, the wire 11 is a single-core wire with no internal gaps. Therefore, the inside of the wire 11 also remains liquid-tight.

[0041] like Figure 2 As shown, each retaining portion 17 protrudes from opposite ends of the sealing body 16 along the axial direction X. The sealing hole 15 does not have an inner circumferential lip on the retaining portion 17 side and is configured with a diameter that is the same as or smaller than the outer diameter of the wire 11. The retaining portion 17 is formed with a certain thickness (radial thickness) along the axial direction X. The thickness of the retaining portion 17 is less than the thickness of the sealing body 16 (the minimum radial thickness (e.g., the thickness of the valley portion between the sealing lips 18 in the case of not having an inner circumferential lip)).

[0042] The retaining part 17 is configured such that the protrusion, measured from the end face of the sealing body 16 in the axial direction X, is from... Figure 2 The shape gradually decreases from the lower end (one radial end) towards the upper end (the other radial end). The tip of the retaining part 17 in the protruding direction becomes as it extends from... Figure 2 The retaining portion 17 has a tapered inclined edge 19 that approaches the sealing body 16 from its lower end upwards. The retaining portion 17, through its parallel upper and lower edges, a connecting edge 21 connected to the end face of the sealing body 16 along the axial direction X, and the inclined edge 19, forms a trapezoidal shape when viewed from the side orthogonal to the axial direction X. Each retaining portion 17 has the same shape and is linearly symmetrical across the sealing body 16.

[0043] like Figure 2 As shown, the conductor 22 is exposed at the position where the wire 11 overlaps with the retaining portion 17 about the axial direction X. The conductor 22 is located above the inclined edge 19 of the retaining portion 17, as... Figure 4 As shown, it is electrically connected to terminals 13 and 14. The conductive part 22 is a region on the outer periphery of the wire 11 and does not have a particular shape.

[0044] The retaining part 17 is subjected to the crimping force (tightening force) of the terminals 13 and 14, and is held in a positioned state by being clamped between the terminals 13 and 14 and the wire 11.

[0045] The connecting terminal 13 is formed by bending or processing a metal sheet, such as... Figure 2 As shown, it has an overall elongated shape in the axial direction X. The connecting terminal 13 has a cylindrical body portion 23, extending from the body portion 23 towards the front side in the axial direction X ( Figure 2 The protruding tab 24 on the left side and the rear side of the main body 23 ( Figure 2The main body 23 has a concave locking receiving portion 26 that engages with a locking structure (not shown) of the connector housing 81.

[0046] The tab 24 can be connected to a counterpart terminal (not shown). The overall cylindrical portion 25F has a pair of pressing tabs 27 that stand opposite each other from the rear end of the bottom wall 37, which is continuous from the main body portion 23. (As shown...) Figure 5 As shown, a rib-like protrusion 28 extending in the circumferential Y direction is provided on the inner surface of the crimping piece 27. For example... Figure 2 As shown, a recess 29 is provided on the outer surface of the pressing piece 27 at a position corresponding to the protrusion 28. The protrusion 28 and the recess 29 are formed by stamping the outer surface of the pressing piece 27.

[0047] The connector terminal 14 is formed by bending or processing a metal sheet, such as... Figure 2 As shown, it has an overall elongated shape in the axial direction X. The length of the connector terminal 14 in the axial direction X is set to be shorter than the length of the connecting terminal 13 in the axial direction X.

[0048] The connector terminal 14 has: a general-purpose cylindrical portion 25R located on the front side in the axial direction X; a wire spool portion 31 connected to the rear side of the general-purpose cylindrical portion 25R; and an insulating cylindrical portion 32 located on the rear side of the wire spool portion 31. The general-purpose cylindrical portion 25R has a pair of crimping tabs 27 that stand opposite each other from the front end of the bottom wall 38. The general-purpose cylindrical portion 25R has the same shape as the general-purpose cylindrical portion 25F of the connecting terminal 13, such as... Figure 4 As shown, the inner surface has a protrusion 28, and the outer surface has a recess 29. The bobbin portion 31 and the insulating bobbin portion 32 form an open cylindrical shape, as shown. Figure 1 As shown, it is connected to the sheathed wire 33. The sheathed wire 33 is flexible and has multiple strands and a covering portion that surrounds each strand. The spool portion 31 is crimped to each strand exposed at the end of the sheathed wire 33 by removing the covering portion. The insulating spool portion 32 is crimped to the covering portion at the end of the sheathed wire 33.

[0049] The main sleeve portion 25F of the connecting terminal 13 comprehensively surrounds the retaining portion 17 and the conducting portion 22 on the front side in the axial direction X. The main sleeve portion 25R of the connector terminal 14 comprehensively surrounds the retaining portion 17 and the conducting portion 22 on the rear side in the axial direction X.

[0050] The cylindrical portions 25F and 25R are configured to abut or approach the outer periphery of the axial X end face of the sealing body 16. For example... Figure 5 As shown, each pressing piece 27 and bottom wall 37 are deformed into a circular or nearly circular flat shape along the holding part 17 and the conducting part 22 through pressing (tightening process).

[0051] like Figure 4As shown, the rear end side of the main cylindrical portion 25F and the front end side of the main cylindrical portion 25R are pressed against the retaining portion 17 throughout their entire circumference. The central side of the main cylindrical portions 25F and 25R in the axial direction X has a lower region 25L that is pressed against the outer circumference of the corresponding top end side (the side with the inclined edge 19) of the retaining portion 17, and an upper region 25U that is pressed against the conductive portion 22 of the wire 11 via a protrusion 28. The protrusion 28 contacts the conductive portion 22 of the wire 11 along the circumferential direction Y. The contact area between the lower region 25L of the main cylindrical portion 25F and the retaining portion 17 decreases as it moves forward. The contact area between the lower region 25L of the main cylindrical portion 25R and the retaining portion 17 decreases as it moves rearward.

[0052] Next, the overall structure of the rubber plug unit 10 and connector 80 in this embodiment 1 will be described.

[0053] During assembly, the wire 11 is inserted into the sealing hole 15 of the rubber plug 12. The central side of the outer periphery of the wire 11 in the axial direction X is tightly fitted against the inner periphery of the sealing hole 15 of the rubber plug 12. Figure 2 As shown, the outer periphery of the wire 11 is configured to be exposed on both sides of the rubber plug 12 in the axial direction X, including the conductive portion 22.

[0054] Next, the main sleeve portions 25F and 25R of terminals 13 and 14 are crimped to both sides of the axial direction X of wire 11. For example... Figure 4 As shown, within a certain width of its axial direction X, the lower region 25L of the main cylindrical portions 25F and 25R is pressed against the retaining portion 17 of the rubber plug 12, and the upper region 25U is pressed against the conducting portion 22 of the wire 11 via the protrusion 28. By pressing the lower region 25L of the main cylindrical portions 25F and 25R against the retaining portion 17 of the rubber plug 12, the retaining portion 17 is clamped and held between the main cylindrical portions 25F and 25R and the wire 11, thus limiting misalignment of the rubber plug 12 relative to the wire 11. By contacting the conducting portion 22 of the wire 11 via the protrusion 28 of the upper region 25U of the main cylindrical portions 25F and 25R, the connecting terminal 13 and the connector terminal 14 are electrically connected via the wire 11. Furthermore, the connecting terminal 13 is electrically connected to the covered wire 33 via the connector terminal 14.

[0055] Based on the above, we obtain the following: Figure 3 The illustrated rubber plug unit 10 integrates the wire 11, rubber plug 12, and terminals 13 and 14. Figure 1As shown, the rubber plug unit 10 is inserted into the cavity 82 of the connector housing 81. The sealing lips 18 of the rubber plug 12 are compressed and tightly pressed against the inner circumference of the cavity 82 of the connector housing 81. Thus, a liquid-tight seal is formed between the rubber plug 12 and the connector housing 81. The tab 24 of the connecting terminal 13 is configured to protrude into the mating space 83 of the connector housing 81 (the mating space of the other connector housing). The covered wire 33 is led out from the connector housing 81 to... Figure 1 Below is the outside. The end of the covered wire 33 can be immersed in oil 70 stored in an oil pan, for example. Oil 70 sometimes reaches the wire 11 of the rubber plug unit 10 through the gap between the strands of the covered wire 33 by capillary action. However, in the case of this embodiment 1, there is no gap inside the wire 11, which is a single core wire, and the wire 11 is also sealed with a rubber plug 12 between it and the connector housing 81. Therefore, oil 70 can be effectively prevented from reaching the connection terminal 13 side. As a result, oil 70 can be prevented from detouring to the tab 24 of the connection terminal 13, and the connection reliability between the connection terminal 13 and the other terminal can be improved.

[0056] On the other hand, corresponding to the single-core wire 11 and rubber plug 12 being interposed on the central side of the rubber plug unit 10 in the axial X direction, the rubber plug unit 10 may become longer in the axial X direction. However, in the case of this embodiment 1, since the conducting portion 22 and the retaining portion 17 are arranged overlapping in the axial X direction, the axial X length of the rubber plug unit 10 can be shortened compared to the arrangement of the conducting portion 22 and the retaining portion 17 in the axial X direction. Moreover, as Figure 5 As shown, the conductive portion 22 and the retaining portion 17 are arranged in a circumferential Y-direction along the wire 11. The main sleeve portions 25F and 25R enclose the conductive portion 22 and the retaining portion 17 in a crimped state. Therefore, compared with the case where the wire sleeve portion and the insulating sleeve portion are arranged in an axial X-direction, the axial X length of the terminals 13 and 14 can be shortened. As a result, the large size of the rubber plug unit 10 can be effectively avoided. In particular, because a protrusion 28 that contacts the conductive portion 22 is provided on the inner circumference of the crimping piece 27 of the main sleeve portions 25F and 25R, the state in which the main sleeve portions 25F and 25R contact the conductive portion 22 by means of the protrusion 28 can be well achieved.

[0057] <Example 2>

[0058] Next, use Figure 6 and Figure 7 Example 2 is described below. Furthermore, for convenience, in Example 2, structures that are the same as or equivalent to those in Example 1 are labeled with the same reference numerals.

[0059] In Embodiment 2, the rubber plug 12A includes: a sealing body 16; a pair of retaining portions 17 protruding to both sides of the sealing body 16 along the axial direction X; and a pair of insertion portions 34 connected to the top end of each retaining portion 17 in the protruding direction. The sealing body 16 is cylindrical and has a sealing hole 15 extending through it in the axial direction X at its center. The insertion portions 34 are disposed opposite each other at a distance from the end face of the sealing body 16 along the axial direction X. The insertion portions 34 are annular and have insertion holes 35 located coaxially with the sealing hole 15. The retaining portions 17 are provided to connect the upper outer periphery of the end face of the sealing body 16 along the axial direction X to the upper part of each insertion portion 34. The cross-section of the retaining portions 17 is arc-shaped, and the retaining portions 17 are formed with a certain thickness along the axial direction X.

[0060] Similar to Embodiment 1, the connecting terminal 13A and the connector terminal 14A have a general-purpose cylindrical portion 25F and 25R. A protrusion 28 extending in a rib-like manner in the circumferential direction Y is provided on the inner periphery of the general-purpose cylindrical portion 25F and 25R. The basic structure of terminals 13A and 14A is the same as that of terminals 13 and 14 in Embodiment 1. However, unlike Embodiment 1, the protrusion 28 and the recess 29 are formed on the bottom wall sides 37 and 38 of the general-purpose cylindrical portion 25F and 25R.

[0061] The central side of the outer periphery of the wire 11 along the axial direction X is disposed in close contact with the inner periphery of the sealing hole 15 of the sealing body 16. The two sides of the outer periphery of the wire 11 along the axial direction X are disposed in close contact with the inner periphery of the insertion hole 35 of the insertion part 34. A conductive part 22 is exposed between the sealing body 16 and the insertion part 34 in the outer periphery of the wire 11.

[0062] like Figure 7 As shown, the main cylindrical portions 25F and 25R are arranged axially X-wise between the sealing body 16 and the insertion portion 34. The upper region 25U of the main cylindrical portions 25F and 25R is deformed into an arc shape along the outer periphery of the retaining portion 17 by a crimping process, and fits tightly against the outer periphery of the retaining portion 17. The retaining portion 17 is clamped and held between the main cylindrical portions 25F and 25R and the wire 11. The lower region 25L of the main cylindrical portions 25F and 25R is deformed into an arc shape along the lower part of the outer periphery of the wire 11 by a crimping process, and the protrusion 28 contacts the conductive portion 22 of the wire 11. The conductive portion 22 is electrically connected to the terminals 13A and 14A by means of the protrusion 28.

[0063] According to Embodiment 2, similar to Embodiment 1, the conducting portion 22 and the retaining portion 17 are arranged overlapping in the axial direction X, and the general sleeve portions 25F and 25R comprehensively surround the conducting portion 22 and the retaining portion 17, thereby shortening the axial length X of the rubber plug unit 10A.

[0064] <Example 3>

[0065] Next, use Figure 8Example 3 is described below. Furthermore, for convenience, in Example 3, structures that are the same as or equivalent to those in Example 1 are labeled with the same reference numerals.

[0066] In Embodiment 3, the rubber plug 12B has a sealing body 16 and a pair of retaining portions 17 connected to both sides of the sealing body 16 along the axial direction X. The basic structure of the rubber plug 12B is the same as that of the rubber plug 12 in Embodiment 1. The shape of the inclined edge 19 of each retaining portion 17 is different from that in Embodiment 1. One side of each retaining portion 17 ( Figure 8 The holding part 17 (on the left side) has a retaining part 17 that moves from the left side. Figure 8 The inclined edge 19 extends from the lower end upwards towards the sealing body 16. The other side ( Figure 8 The retaining part 17 on the right side has a retaining part that moves from the right side of ... Figure 8 An inclined edge 19 extends from the upper end to the lower end, approaching the sealing body 16. Additionally, a cutout 36 along the axial direction X is formed at the upper end (short side end) of one side of the retaining portion 17. A cutout 36 along the axial direction X is also formed at the lower end (short side end) of the retaining portion 17 on the other side. A conductive portion 22 is provided on the outer periphery of the wire 11 inside the cutout 36. Each retaining portion 17 is point-symmetrical in shape across the sealing body 16.

[0067] The terminal not shown does not have a portion equivalent to a protrusion. The terminal is deformed into an arc shape along the outer periphery of the retaining portion 17 by crimping, and the end (e.g., the top part of the crimping piece) can enter the cut-out portion 36 and contact the conductive portion 22 of the wire 11. In Embodiment 3, similar to Embodiment 1, the conductive portion 22 and the retaining portion 17 are arranged at a position where they overlap in the axial X direction, thus shortening the axial X length of the rubber plug unit 10B.

[0068] [Other embodiments of this disclosure]

[0069] The embodiments disclosed herein should be considered illustrative in all respects, and not restrictive.

[0070] In embodiments 1 to 3, the wire is a single-core wire without an insulating sheath; however, in other embodiments, the wire may be a single-core wire with an insulating sheath. When the wire is a single-core wire with an insulating sheath, it is preferable to provide a conductive portion on the outer periphery of the wire exposed by removing the insulating sheath.

[0071] In embodiments 1 to 3, the wire is a single-core wire. However, in other embodiments, the wire may be a flexible insulated wire in which multiple strands are surrounded by an insulating sheath.

[0072] In embodiments 1 to 3, the terminal consists of a connecting terminal and a connector terminal; however, in other embodiments, the terminal may consist only of a connecting terminal. In this case, the retaining portion corresponding to the connector terminal can be omitted from the rubber plug. Furthermore, in this case, the wire may have a structure in which an additional connecting terminal is connected to an end extending to the side opposite to the portion connected to the connecting terminal.

[0073] In Embodiments 1 and 2 of the implementation, the terminal is a structure in which the conductive portion of the wire contacts the protrusion. However, in other embodiments, the terminal may also be a structure in which the top part of the crimping piece or the like contacts the conductive portion of the wire without having a protrusion.

[0074] Explanation of reference numerals in the attached figures

[0075] 10, 10A, 10B: Rubber Plug Unit

[0076] 11: Electrical wires

[0077] 12, 12A, 12B: Rubber plugs

[0078] 13, 13A: Connection terminal (terminal)

[0079] 14, 14A: Connector terminal (terminal)

[0080] 15: Sealing hole

[0081] 16: Sealing body

[0082] 17: Maintaining section

[0083] 18: Sealing lip

[0084] 19: Inclined edge

[0085] 21: Connecting Fate

[0086] 22: Conductor section

[0087] 23: Main body

[0088] 24: Protrusion

[0089] 25F, 25R: General section of cylinder

[0090] 25L: Lower area

[0091] 25U: Upper area

[0092] 26: Card receiving section

[0093] 27: Crimping plate

[0094] 28: protrusion

[0095] 29: concave part

[0096] 31: Boll section

[0097] 32: Insulating cylinder section

[0098] 33: Sheathed wires

[0099] 34: Insertion section

[0100] 35: Through hole

[0101] 36: Incision area

[0102] 37, 38: Bottom wall

[0103] 70: Oil

[0104] 80: Connector

[0105] 81: Connector housing

[0106] 82: cavity

[0107] 83: Embossed Space

[0108] 90: Box

[0109] 95: O-ring

[0110] X: Axial direction

[0111] Y: Zhou Xiang

Claims

1. A connector comprising: Rubber plug unit; and Connector housing with cavity The rubber plug unit includes a terminal, a wire, and a rubber plug that is tightly attached to the outer periphery of the wire. The wire is a single-core wire, and the wire has a conductive portion that connects to the terminal. The rubber plug has a retaining portion that is clamped between the terminal and the wire. The conducting portion and the retaining portion are arranged to overlap in the axial direction of the wire. A sealing lip is provided on the outer periphery of the rubber plug, which fits tightly against the inner periphery of the cavity. The conductive portion is disposed on both sides of the wire in the axial direction, separated by the sealing lip. One of the conductive portions disposed on both sides is connected to a connecting terminal that can contact the other terminal, and the other conductive portion is connected to a connector terminal that connects to a flexible sheathed wire. The sheathed wire is disposed on the outside of the connector housing.

2. The connector according to claim 1, wherein, The conducting portion and the retaining portion are arranged circumferentially on the wire. The terminal has a general enclosure portion that comprehensively surrounds the conducting portion and the retaining portion.

3. The connector according to claim 2, wherein, A protrusion that contacts the conductive portion is provided on the inner periphery of the general-purpose cylindrical portion.

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