connector

Abstract

A connector capable of ensuring the sealing property of a sealing member is provided. The connector (10, 10A) has a sealing member (13) sandwiched between a first housing (11, 11A) and a second housing (12, 12A). The sealing member has a sealing hole (36) that penetrates a sealing body portion (35) in a front-rear direction and a positioning recess (39) formed on a front surface of the sealing body portion. The second housing has a pre-assembly member (14, 14A) and an additional member (15, 15A) separate from the pre-assembly member. The pre-assembly member has a pre-assembly body portion (41, 41A) disposed in front of the sealing body portion and a positioning protrusion (43, 43A) that protrudes from a rear surface of the pre-assembly body portion and enters the positioning recess. The additional member has a peripheral wall portion (52, 52A) that contacts an outer peripheral surface of the sealing member.

Description

Technical Field

[0001] This disclosure relates to connectors. Background Technology

[0002] Patent Document 1 describes a connector comprising a housing, a rear retainer, and a sealing member (including a rubber plug) disposed between the housing and the rear retainer. The sealing member has multiple sealing holes formed through it in a longitudinal direction. A positioning recess is formed on the front surface of the sealing member. A positioning pin is formed protruding on the rear surface of the housing. Furthermore, a peripheral wall portion is formed protruding rearward from the outer periphery of the housing.

[0003] The sealing member is positioned within the housing by being inserted into the inner side of the peripheral wall portion, with a locating pin entering the locating recess. The peripheral wall portion fits tightly against a lip formed on the outer periphery of the sealing member. Connectors having such a sealing member and housing are also disclosed in Patent Documents 2 and 3.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2014-220058

[0007] Patent Document 2: Japanese Patent Application Publication No. 2003-151678

[0008] Patent Document 3: Japanese Patent Application Publication No. 2002-75523 Summary of the Invention

[0009] The problem that the invention aims to solve

[0010] In the aforementioned Patent Document 1, when the locating pin is inserted into the locating recess, the sealing member is sometimes compressed and deformed radially inward by the peripheral wall portion. When the sealing member is compressed and deformed, the relative positional relationship between the locating pin and the locating recess deviates, resulting in the malfunction of the locating pin being incorrectly inserted into the locating recess.

[0011] Therefore, this disclosure aims to provide a connector that can improve the positioning accuracy of sealing components.

[0012] Solution for solving the problem

[0013] The connector disclosed herein includes a first housing, a second housing, and a sealing member disposed between the first housing and the second housing. The sealing member has a sealing main portion, a sealing hole penetrating the sealing main portion in a front-rear direction, and a positioning recess formed on the front surface of the sealing main portion. The second housing has a pre-installed member and an additional member separate from the pre-installed member. The pre-installed member has a pre-installed main portion disposed in front of the sealing main portion and a positioning protrusion protruding from the rear surface of the pre-installed main portion and entering the positioning recess. The additional member has a peripheral wall portion that contacts the outer peripheral surface of the sealing member.

[0014] Invention Effects

[0015] According to this disclosure, a connector that can improve the positioning accuracy of sealing components can be provided. Attached Figure Description

[0016] Figure 1 This is a perspective view of the connector of Embodiment 1.

[0017] Figure 2 It is an exploded perspective view of the first shell, pre-assembled components, and additional components.

[0018] Figure 3 It is a cross-sectional view showing the connector cut off at the location of the positioning recess.

[0019] Figure 4 It is a cross-sectional view showing the connector cut off at the sealing hole.

[0020] Figure 5 This is the front view of the first housing.

[0021] Figure 6 This is a top view of the first housing assembled with sealing components and pre-assembled components.

[0022] Figure 7 This is the front view of the sealing component.

[0023] Figure 8 This is the front view of the pre-assembled components.

[0024] Figure 9 This is a rear view of the pre-assembled components.

[0025] Figure 10 This is the rear view of the additional component.

[0026] Figure 11 This is equivalent to Embodiment 2 of the implementation method. Figure 1 The image.

[0027] Figure 12 This is equivalent to Embodiment 2 of the implementation method. Figure 2 The image.

[0028] Figure 13 This is equivalent to Embodiment 2 of the implementation method. Figure 3 The image.

[0029] Figure 14 This is equivalent to Embodiment 2 of the implementation method. Figure 4 The image.

[0030] Figure 15 This is equivalent to Embodiment 2 of the implementation method. Figure 9 The image.

[0031] Figure 16 This is equivalent to Embodiment 2 of the implementation method. Figure 10 The image. Detailed Implementation

[0032] [Description of embodiments of this disclosure]

[0033] First, the implementation methods of this disclosure are listed and explained.

[0034] The connector disclosed herein,

[0035] (1) The device comprises a first housing, a second housing, and a sealing member disposed between the first housing and the second housing. The sealing member has a sealing main body, a sealing hole through which the sealing main body passes in a front-rear direction, and a positioning recess formed on the front surface of the sealing main body. The second housing has a pre-installed member and an additional member separate from the pre-installed member. The pre-installed member has a pre-installed main body disposed in front of the sealing main body and a positioning protrusion protruding from the rear surface of the pre-installed main body and entering the positioning recess. The additional member has a peripheral wall portion that contacts the outer peripheral surface of the sealing member.

[0036] According to the above configuration, after the pre-assembled component is positioned on the front surface of the sealing component and the positioning protrusion enters the positioning recess, the additional component is assembled, and the peripheral wall portion can contact the outer peripheral surface of the sealing component. When the sealing component is pressed by the peripheral wall portion and a radially inward compressive force is applied to the sealing component, the positioning protrusion has already inserted into the positioning recess. Therefore, the undesirable situation where the positioning protrusion does not insert into the positioning recess can be avoided.

[0037] (2) Preferably, the additional member has an additional main body portion disposed in front of the pre-assembled main body portion, and the peripheral wall portion protrudes rearward from the additional main body portion.

[0038] According to the above configuration, the forward disengagement of the pre-assembled component is prevented by the attached main body.

[0039] (3) Preferably, the pre-assembled main body is formed as a plate with thickness in the front-rear direction, and the additional main body has a cavity for receiving terminal parts and a spear-shaped portion protruding into the cavity to lock the terminal parts, which is longer than the pre-assembled main body in the front-rear direction.

[0040] Based on the above configuration, additional components can be formed without significantly altering the original shell, and pre-assembled components can be formed into small sizes.

[0041] (4) Preferably, the additional main body is formed as a plate with thickness in the front-rear direction, and the pre-assembled main body has a cavity for receiving terminal parts and a spear-shaped portion protruding into the cavity to lock the terminal parts, which is longer than the additional main body in the front-rear direction.

[0042] Based on the above configuration, the spear-shaped portion of the pre-installed main body is protected by the additional main body, preventing interference with external foreign objects. Because the additional main body can also function as a front retainer, a dedicated front retainer can be omitted.

[0043] (5) Preferably, the second housing has an outer wall portion that covers the first housing, and a window portion is formed in the outer wall portion that allows for visual confirmation between the front surface of the sealing body portion and the rear surface of the pre-assembled body portion.

[0044] Based on the above configuration, before assembling the additional components, the window allows for visual confirmation of the relationship between the front surface of the sealing main body and the rear surface of the pre-assembled main body, thus confirming whether the relative positional relationship between the sealing component and the pre-assembled component is appropriate. Consequently, it can be confirmed whether the positioning protrusion is properly inserted into the positioning recess.

[0045] (6) Preferably, the outer wall portion rotatably supports the rod, the rod has a cam groove, the cam groove engages with the cam follower of the opposite housing, and the window portion opens at the front end of the outer wall portion and is formed into a groove to receive the cam follower.

[0046] Based on the above configuration, since the window also serves to receive the cam follower, the configuration will not be complicated by the presence of the window.

[0047] (7) Preferably, a positioning protrusion is formed on either the pre-assembled member or the additional member, and a positioning recess is formed on the other side into which the positioning protrusion enters.

[0048] Based on the above configuration, the pre-assembled components and additional components can be positioned by inserting the alignment protrusion into the alignment recess.

[0049] [Details of the embodiments of this disclosure]

[0050] The following is a reference to the appendix. Figure 1 Specific examples of embodiments of this disclosure will be described below. Furthermore, the invention is not limited to these examples, but is intended to include all modifications within the meaning and scope of the claims, as indicated by the claims.

[0051] <Example 1>

[0052] like Figure 3 and Figure 4 As shown, the connector 10 of Embodiment 1 of this invention includes a first housing 11, a second housing 12, and a sealing member 13 disposed between the first housing 11 and the second housing 12. The second housing 12 has a pre-assembly member 14 and an additional member 15 that are separate from each other. The connector 10 further includes a wire cover 16, a rod 17, a terminal part 18, a stop 19, a rubber ring 20, and a front retainer 21.

[0053] Furthermore, in the following description, regarding the front-rear direction, in connector 10, the side where the front retainer 21 is located is designated as the front side. Figure 2 The upper side becomes the front side. Sealing member 13, pre-assembled member 14, and additional member 15 are assembled sequentially from the front side relative to the first housing 11. The front side is also where the connector 10 and... Figure 6 The side of the opposite housing 100 shown is engaged with the other housing 100. The vertical direction is... Figure 5 , Figures 7-10 The vertical direction is used as the reference. The vertical direction is synonymous with the height direction. The left and right directions are based on... Figures 5-10 The left and right directions are used as the reference. The left and right directions are synonymous with the width direction. In Figure 1 and Figure 2 In the center, arrow X represents the front, arrow Y represents the right, and arrow Z represents the top.

[0054] The first shell 11 is made of synthetic resin, such as Figure 2 As shown, it is formed in a rectangular cylindrical shape. The first housing 11 has a rear wall portion 22, an outer wall portion 23, and a plurality of cover locking portions 24. The rear wall portion 22 is plate-shaped, as shown... Figure 3 and Figure 4 As shown, it has thickness in the front-to-back direction.

[0055] The outer wall portion 23 is cylindrical and protrudes forward from the outer periphery of the rear wall portion 22. For example... Figure 5 As shown, a pair of upper and lower window portions 25 are formed on the outer wall portion 23. Figure 2 and Figure 6 As shown, the window portion 25 is groove-shaped, extending in the front-rear direction, and opens at the front end of the outer wall portion 23. A pair of upper and lower support shafts 26 are formed protrudingly behind the window portion 25 on the outer surface of the outer wall portion 23. Figure 5As shown, a pair of locking portions 27 are formed through the rear end of the outer wall portion 23.

[0056] like Figure 2 As shown, multiple cover locking parts 24 protrude rearward from the four corners of the rear end portion of the outer wall portion 23. The wire cover 16 is made of synthetic resin, such as... Figure 1 As shown, it is formed in the shape of a cap. The wire cover 16 is locked by the cover locking parts 24, covering the rear wall part 22 from the rear and holding it in the first housing 11. The wire cover 16 has a wire outlet 28 formed in such a way as to open upward.

[0057] Rod 17 is made of synthetic resin, such as Figure 1 As shown, a pair of upper and lower arms 29 cover the upper and lower surfaces of the outer wall portion 23. A shaft hole 31 is formed in each arm 29. The rod 17 is rotatably supported on the first housing 11 about a support shaft 26 embedded in the shaft hole 31. A cam groove 32 is formed in each arm 29. The cam groove 32 communicates with the window portion 25 in the vertical direction. Figure 6 The cam follower 101 of the opposite housing 100 shown enters the inner side of the cam groove 32 through the window 25. When the rod 17 rotates, the cam follower 101 slides on the groove surface of the cam groove 32, thereby engaging the connector 10 and the opposite housing 100.

[0058] like Figure 4 As shown, a plurality of insertion holes 33 are formed in the rear wall portion 22. Wires 120 are inserted into the insertion holes 33. Wires 120 extend rearward from the rear wall portion 22, bend inside the wire cover 16, and extend upward from the wire outlet 28.

[0059] like Figure 5 As shown, a plurality of positioning protrusions 34 are formed protrudingly on the front surface of the rear wall portion 22. Each positioning protrusion 34 is pin-shaped and is arranged on the front surface of the rear wall portion 22 in a manner corresponding to the four corner positions in the diagonal direction of each insertion hole 33 (except for the positions corresponding to the four corners of the rear wall portion 22 as a whole).

[0060] The sealing member 13 is made of rubber and has a sealing body 35. For example... Figure 7 As shown, the sealing body 35 is formed into a rectangular plate with rounded corners, as... Figure 3 and Figure 4 As shown, it has thickness in the front-to-back direction. The rear surface of the sealing body 35 and the front surface of the rear wall 22 are arranged facing each other. Figure 4 and Figure 7 As shown, a plurality of sealing holes 36 are formed in the sealing body portion 35. Each sealing hole 36 communicates with each through hole 33 in the front-rear direction. A plurality of lips 37 are formed throughout the entire circumference of the outer peripheral surface of the sealing body portion 35. Each lip 37 is arranged in a front-rear direction on the outer peripheral surface of the sealing body portion 35.

[0061] like Figure 3 As shown, a plurality of positioning recesses 38 are formed on the rear surface of the sealing body 35. Each positioning recess 38 has a closed end at a position on the rear of the sealing body 35 and near the center in the front-rear direction of the sealing body 35. In addition, each positioning recess 38 is arranged in the rear surface of the sealing body 35 at the four corner positions in the diagonal direction of each sealing hole 36 (except for the positions corresponding to the four corners of the sealing body 35 as a whole).

[0062] A plurality of positioning recesses 39 are formed on the front surface of the sealing body portion 35. Each positioning recess 39 has a closed end at the front portion of the sealing body portion 35 and near the center in the front-rear direction of the sealing body portion 35. In addition, as Figure 7 As shown, each positioning recess 39 is arranged in the front surface of the sealing body 35 at the four corners diagonally opposite to each sealing hole 36 (except for the positions corresponding to the four corners of the sealing body 35 as a whole). Figure 3 As shown, the positioning recesses 39 and 38 are arranged opposite each other in the front-rear direction, separated by the sealing body 35.

[0063] The second shell 12 is made of synthetic resin, such as Figure 3 and Figure 4 As shown, it is housed inside the first housing 11. In the case of this embodiment 1, the second housing 12 becomes the inner housing, and the first housing 11 is the part that becomes the outer housing.

[0064] The pre-assembly component 14 has a pre-assembly main body 41. The pre-assembly main body 41 is rectangular plate-shaped and has a thickness in the front-rear direction. It is arranged between the pre-assembly main body 41 and the rear wall 22 in such a way that a sealing member 13 is sandwiched between them. The rear surface of the pre-assembly main body 41 and the front surface of the sealing member 13 are arranged facing each other.

[0065] Multiple through holes 42 are formed in the pre-assembly main body 41. Each through hole 42 communicates with each sealing hole 36 of the sealing member 13 in the front-rear direction. Multiple positioning protrusions 43 are formed rearwardly on the rear surface of the pre-assembly main body 41. Each positioning protrusion 43 is pin-shaped, such as... Figure 9 As shown, on the rear surface of the pre-installed main body 41, the four corner positions (other than the positions corresponding to the four corners of the pre-installed main body 41 as a whole) are arranged in the diagonal direction of each through hole 42.

[0066] like Figure 2 and Figure 8 As shown, a pair of alignment protrusions 44 are formed at the left and right ends of the front surface of the pre-assembled main body 41. The alignment protrusions 44 are rectangular plates with thickness in the left-right direction.

[0067] like Figure 2As shown, the additional member 15 has an additional main body portion 45. The additional main body portion 45 is shell-shaped and is longer than the pre-assembled main body portion 41 in the front-rear direction. Multiple cavities 46 are formed in the additional main body portion 45. Figure 4 As shown, each cavity 46 houses a terminal part 18 that connects to the end of the wire 120. Each cavity 46 communicates with each through hole 42 in the front-rear direction. The auxiliary body portion 45 has a spear-shaped portion 47 for each cavity 46. The spear-shaped portion 47 protrudes forward from the inner side of the cavity 46. The terminal part 18 engages with the spear-shaped portion 47 and is initially restrained from disengaging from the auxiliary body portion 45.

[0068] Terminal part 18 is made of conductive metal, and in this embodiment 1, a female terminal is exemplified. A wire 120 is crimped to the rear of terminal part 18. Terminal part 18 has a cylindrical connecting portion 48 at its front. A tab (not shown) to which a male terminal (on the opposite side) is inserted from the front into the connecting portion 48.

[0069] A stop body mounting hole 49 is formed in the additional main body portion 45. The stop body mounting hole 49 extends in the vertical direction, such as... Figure 2 As shown, an opening is located at the center of the lower surface of the additional main body 45 in the front-rear direction. A stop 19 is inserted from below into the stop mounting hole 49. The stop 19 is made of synthetic resin and is in the shape of a rectangular plate, as shown... Figure 3 and Figure 4 As shown, it has thickness in the front-to-back direction. Terminal part 18 is locked to stop body 19 and is detached from additional member 15 by secondary restraint.

[0070] like Figure 10 As shown, a pair of matching recesses 51 are formed at the left and right ends of the rear surface of the additional main body 45. Each matching recess 51 is formed as a slit that is long in the vertical direction.

[0071] The additional member 15 has a peripheral wall portion 52 protruding rearward from the outer periphery of the additional main body portion 45. The peripheral wall portion 52 is formed into a rectangular cylindrical shape with rounded corners, and is formed throughout the entire outer periphery of the additional member 15. Figure 3 and Figure 4 As shown, the inner circumferential surface of the peripheral wall portion 52 is in close contact with the lip 37 of the sealing member 13. For example... Figure 10 As shown, a pair of locking portions 53 are formed outwardly at the rear end of the peripheral wall portion 52. The locking portions 53 are formed in a claw shape that extends vertically, as shown... Figure 1 and Figure 4 As shown, the locking part 27 is locked in the first housing 11.

[0072] Rubber ring 20 is made of rubber, such as Figure 2 , Figure 3 as well as Figure 4As shown, it is installed on the rear part of the outer peripheral surface of the additional body part 45. A step 54 is formed between the rear part of the outer peripheral surface of the additional body part 45 and the peripheral wall part 52. The rear end of the rubber ring 20 contacts the step 54 and is positioned thereby. When the connector 10 is engaged with the other housing 100, the rubber ring 20 is liquid-tightly clamped between the other housing 100 and the additional body part 45.

[0073] The front retainer 21 is made of synthetic resin and is mounted to the additional member 15 in a manner that covers the front surface of the additional main body 45. For example... Figure 1 and Figure 4 As shown, a plurality of tab insertion holes 55 are formed in the front retainer 21. Each tab insertion hole 55 communicates with each cavity 46 in the front-rear direction. The terminal part 18 is inserted into the recess behind the tab insertion hole 55 through the connecting part 48 and abuts against the front retainer 21, thereby being restricted from disengaging forward.

[0074] Next, the assembly steps of the connector 10 in this embodiment 1 will be described.

[0075] First, such as Figure 2 As shown, the sealing member 13 is inserted into the inner side of the first housing 11 from the front. The sealing body 35 is positioned on the front surface side of the rear wall portion 22 by inserting the positioning protrusions 34 into the positioning recesses 38. Next, the pre-installed member 14 is inserted into the inner side of the first housing 11 from the front. The pre-installed body 41 is positioned on the front surface side of the sealing body 35 by inserting the positioning protrusions 43 into the positioning recesses 39.

[0076] like Figure 6 As shown, the boundary between the front surface of the sealing body 35 and the rear surface of the pre-installed body 41 can be visually confirmed from above or below through the window 25. Assuming the pre-installed member 14 is not properly positioned on the front surface of the sealing member 13, a gap forms between the front surface of the sealing body 35 and the rear surface of the pre-installed body 41. Therefore, the pre-installed body 41 is pressed into the sealing body 35 to fill the gap. This results in the pre-installed member 14 being positioned without gaps on the front surface of the sealing member 13, and each positioning protrusion 43 being properly inserted into each positioning recess 39.

[0077] During the assembly of the pre-assembled component 14, the sealing component 13 is not subjected to compressive force from the peripheral wall portion 52 of the additional component 15 toward the radially inward side, and can maintain a state where it does not compress or deform toward the radially inward side. Therefore, each positioning protrusion 43 can be well embedded into its corresponding positioning recess 39.

[0078] Next, the additional component 15 is inserted into the inside of the first housing 11 from the front. In addition, a rubber ring 20 is pre-installed on the additional component 15, and the stop 19 is held in a temporary locked position.

[0079] Each alignment recess 51 is fitted with and inserted into each alignment protrusion 44 (see reference). Figure 3 The additional main body 45 is positioned on the front surface side of the pre-installed main body 41. This ensures proper communication between the through hole 42 and the cavity 46 in the longitudinal direction (see reference). Figure 4 Furthermore, with the rear surface of the additional main body 45 in contact with the front surface of the pre-installed main body 41, each locking part 53 engages with each locked part 27, and the additional member 15 remains in a restricted disengagement state in the first housing 11 (see reference). Figure 1 and Figure 4 In addition, the pre-installed component 14 and the sealing component 13 are also kept in a restricted detachment state between the additional component 15 and the first housing 11.

[0080] With the additional member 15 held in the first housing 11, the inner circumferential surface of the peripheral wall portion 52 is in close contact with the lip 37 of the sealing member 13. The sealing member 13 is pressed radially inward by the peripheral wall portion 52. Therefore, a compressive force is applied to the sealing member 13 in a radially inward direction. However, since the positioning protrusions 43 are already inserted into the positioning recesses 39, the following undesirable situation will not occur: the positioning protrusions 43 will not be inserted into the positioning recesses 39 due to the compressive force applied to the sealing member 13. In addition, the sealing member 13 will not be compressed and deformed significantly in a radially inward direction.

[0081] Next, terminal component 18 is inserted into cavity 46 through insertion hole 33, sealing hole 36, and through hole 42. Wire 120 connected to terminal component 18 is inserted into insertion hole 33, sealing hole 36, and through hole 42 (see reference). Figure 4 The outer peripheral surface of the wire 120 is in close contact with the inner peripheral surface of the sealing hole 36. This prevents water and oil from entering the cavity 46. Then, the stop 19 is pressed into the final locked position, and the terminal part 18 is locked in a state that restricts its disengagement from the cavity 46.

[0082] In this embodiment 1, after the pre-assembled member 14 is positioned on the front surface of the sealing member 13 and each positioning protrusion 43 is inserted into each positioning recess 39, the additional member 15 is assembled, with the peripheral wall portion 52 tightly abutting against the lip 37 of the sealing member 13. When the sealing member 13 is pressed by the peripheral wall portion 52 and a radially inward compressive force is applied to the sealing member 13, each positioning protrusion 43 becomes embedded in each positioning recess 39. Therefore, the undesirable situation where each positioning protrusion 43 is not inserted into each positioning recess 39 can be avoided. As a result, the positioning accuracy of the sealing member 13 can be improved. Consequently, the sealing performance of the sealing member 13 can be well maintained.

[0083] Furthermore, an additional main body 45 is positioned in front of the pre-installed main body 41, thus preventing the pre-installed member 14 from detaching forward. Additionally, the additional main body 45 has a structure with multiple cavities 46, allowing the additional member 15 to be formed without significant alteration to the original housing. In contrast, the pre-installed main body 41 is a plate-like structure with thickness in the front-rear direction, enabling the pre-installed member 14 to be formed in a small size.

[0084] Furthermore, before assembling the additional component 15, such as Figure 6 As shown, the window 25 of the outer wall portion 23 allows for visual confirmation of the relationship between the front surface of the sealing main body portion 35 and the rear surface of the pre-installed main body portion 41, thus enabling confirmation of the appropriate relative positional relationship between the sealing member 13 and the pre-installed member 14. Consequently, it is possible to confirm whether each positioning protrusion 43 is properly inserted into each positioning recess 39. Furthermore, since the window 25 also functions as a receiver for the cam follower 101, the structure of the outer wall portion 23 is not complicated by the presence of the window 25. Further, by inserting each alignment protrusion 44 into each alignment recess 51, the pre-installed member 14 and the additional member 15 can be positioned relative to each other.

[0085] <Example 2>

[0086] Next, using Figures 11-16 This describes Embodiment 2. The structure of the second housing 12A in Embodiment 2 differs significantly from that in Embodiment 1, and it also differs from Embodiment 1 in that the connector 10A does not have a front retainer 21. Otherwise, it is the same as Embodiment 1. In Embodiment 2, the same reference numerals are used to denote structures that are the same as or equivalent to those in Embodiment 1; the main differences from Embodiment 1 are explained.

[0087] like Figure 12 and Figure 13 As shown, the pre-assembled component 14A has a pre-assembled main body portion 41A in the shape of a shell. Multiple cavities 46A are formed in the pre-assembled main body portion 41A. (As shown...) Figure 14 and Figure 15 As shown, spear-shaped portions 47A are formed protruding from the inner surface of each cavity 46A. The terminal part 18 is inserted into the cavity 46A and is locked by the spear-shaped portion 47A, thus being initially restricted from disengaging from the pre-assembled member 14A.

[0088] A stop body mounting hole 49A is formed in the pre-assembled main body part 41A. The stop body mounting hole 49A extends in the vertical direction, such as... Figure 12 As shown, an opening is located at the center of the lower surface of the pre-assembled main body 41A in the front-rear direction. Figure 13As shown, the rear surface of the pre-assembly main body 41A and the front surface of the sealing main body 35 are disposed face-to-face. On the rear surface of the pre-assembly main body 41A, a plurality of positioning protrusions 43A are formed at the four corners diagonally opposite to each cavity 46A (excluding positions corresponding to the four corners of the pre-assembly main body 41A as a whole). Figure 12 As shown, a pair of plate-shaped alignment protrusions 44A are formed on the front surface of the pre-assembled main body 41A.

[0089] The additional member 15A has a rectangular plate-shaped additional main body portion 45A and a peripheral wall portion 52A protruding rearward from the outer periphery of the additional main body portion 45A. The additional main body portion 45A is located in front of the spear-shaped portion 47A, protecting the spear-shaped portion 47A from external foreign objects. Figure 14 As shown, the rear surface of the additional main body 45A and the front surface of the pre-installed main body 41A are arranged facing each other. Figure 16 As shown, a pair of left and right alignment recesses 51A are formed on the rear surface of the additional main body portion 45A. Multiple through holes 42A are formed in the additional main body portion 45A. Each through hole 42A communicates with each cavity 46A in the front-rear direction.

[0090] The peripheral wall portion 52A is formed into a rectangular cylindrical shape with rounded corners. For example... Figure 12 As shown, a stop body through hole 56 is formed through the lower wall of the peripheral wall portion 52A near the additional main body portion 45A. A notch portion 57 with an opening at the front end of the lower wall is formed on the outer wall portion 23A of the first housing 11A. The notch portion 57, the stop body through hole 56, and the stop body mounting hole 49A are connected in the vertical direction.

[0091] A rubber ring 20 is installed behind the stop body through hole 56 in the outer peripheral surface of the peripheral wall portion 52A. In addition, a pair of locking portions 53A are formed protruding outward at the rear end of the peripheral wall portion 52A.

[0092] During connector 10A assembly, a sealing body 35 is disposed on the front surface side of the rear wall portion 22. The first housing 11A is positioned against the sealing member 13 by engaging the positioning protrusions 34 into the positioning recesses 38. Next, a pre-assembly body 41A is disposed on the front surface side of the sealing body 35. The pre-assembly member 14A is positioned against the sealing member 13 by engaging the positioning protrusions 43A into the positioning recesses 39. Next, an additional body 45A is disposed on the front surface side of the pre-assembly body 41A. The additional member 15A is positioned against the pre-assembly member 14A by engaging the alignment protrusions 44A into the alignment recesses 51A. Furthermore, the additional member 15A is held in the first housing 11A (see reference 27) by engaging the locking portions 53A into the locked portions 27. Figure 14The pre-assembled component 14A and the sealing component 13 are held between the additional component 15A and the first housing 11A. The inner peripheral surface of the peripheral wall portion 52A is in close contact with the lip 37 of the sealing component 13, and a compressive force is applied to the sealing component 13 in a radially inward direction.

[0093] Next, terminal part 18 is inserted into cavity 46A. Terminal part 18 is embedded in the recess behind through hole 42A via connecting part 48 and abuts against additional body part 45A, thereby preventing it from disengaging forward (see reference). Figure 14 Additionally, the stop 19 is pressed into the fixed locking position relative to the stop mounting hole 49A, and the terminal part 18 is locked in a restricted disengagement state. Furthermore, the operation of moving the stop 19 can be performed through the notch 57 and the stop through hole 56.

[0094] According to Embodiment 2, similarly to Embodiment 1, after the pre-assembled component 14A is disposed on the front surface side of the sealing component 13 and each positioning protrusion 43A is inserted into each positioning recess 39, the additional component 15A is assembled, and the peripheral wall portion 52A can fit tightly against the lip 37 of the sealing component 13. This improves the positioning accuracy of the sealing component 13. Furthermore, in the case of Embodiment 2, the additional main body portion 45A also functions as a front retainer, so a dedicated front retainer can be omitted.

[0095] [Other embodiments of this disclosure]

[0096] The embodiments disclosed herein should be considered illustrative in all respects, and not restrictive.

[0097] In Embodiments 1 and 2 of the implementation, the second housing constituting the pre-assembled component and the additional component is a structure inserted into the inside of the first housing. However, the second housing may not be inserted into the inside of the first housing; for example, the first housing and the second housing may simply be arranged in a front-to-back direction. That is, it is not limited to the part where the first housing is the outer shell and the second housing is the inner shell.

[0098] In Embodiments 1 and 2 of the implementation, the additional member has an additional main body and a peripheral wall. However, the additional member may also not have an additional main body, for example, it may consist only of a peripheral wall.

[0099] In Embodiments 1 and 2 of the implementation method, the alignment protrusion is formed on the pre-assembled member, and the alignment recess is formed on the additional member. However, it is also possible that the alignment protrusion is formed on the additional member, and the alignment recess is formed on the pre-assembled member.

[0100] Explanation of reference numerals in the attached figures

[0101] 10, 10A: Connector

[0102] 11, 11A: First shell

[0103] 12, 12A: Second shell

[0104] 13: Sealing components

[0105] 14, 14A: Pre-assembled components

[0106] 15, 15A: Additional components

[0107] 16: Wire Cover

[0108] 17: Pole

[0109] 18: Terminal parts

[0110] 19: Stopper

[0111] 20: Rubber ring

[0112] 21: Anterior Holder

[0113] 22: Rear wall

[0114] 23, 23A: Outer wall portion

[0115] 24: Cover locking part

[0116] 25: Window

[0117] 26: Support shaft

[0118] 27: Locked Department

[0119] 28: Electrical wire outlet

[0120] 29: Arms

[0121] 31: Shaft hole

[0122] 32: Cam groove

[0123] 33: Through hole

[0124] 34: Positioning the convex part

[0125] 35: Sealing body part

[0126] 36: Sealing hole

[0127] 37: Lips

[0128] 38: Positioning the recess

[0129] 39: Positioning the recess

[0130] 41, 41A: Pre-assembled main body

[0131] 42, 42A: Through holes

[0132] 43, 43A: Positioning convex part

[0133] 44, 44A: Alignment convex part

[0134] 45, 45A: Additional main body

[0135] 46, 46A: Cavity

[0136] 47, 47A: Spear-shaped part

[0137] 48: Connecting part

[0138] 49, 49A: Mounting holes for stop body

[0139] 51, 51A: Alignment recess

[0140] 52, 52A: Peripheral wall portion

[0141] 53, 53A: Locking part

[0142] 54: Steps

[0143] 55: Protrusion through hole

[0144] 56: Stop body through hole

[0145] 57: Notch

[0146] 100: The other party's shell

[0147] 101: Cam follower

[0148] 120: Electric wire

[0149] X: Ahead

[0150] Y: Right side

[0151] Z: Above

Claims

1. A connector comprising a first housing, a second housing, and a sealing member disposed between the first housing and the second housing. The sealing member has a sealing body portion, a sealing hole through which the sealing body portion passes in the front-rear direction, and a positioning recess formed on the front surface of the sealing body portion. The second housing has a pre-assembled component and an additional component that is separate from the pre-assembled component. The pre-assembled component has a pre-assembled main body portion disposed in front of the sealing main body portion, and a positioning protrusion portion protruding from the rear surface of the pre-assembled main body portion and entering the positioning recess portion. The additional member has a peripheral wall portion that contacts the outer peripheral surface of the sealing member. The peripheral wall portion of the additional component contacts the outer peripheral surface of the sealing component after the positioning protrusion of the pre-assembled component enters the positioning recess of the sealing component.

2. The connector according to claim 1, wherein, The additional component has an additional main body portion disposed in front of the pre-assembled main body portion, and the peripheral wall portion protrudes rearward from the additional main body portion.

3. The connector according to claim 2, wherein, The pre-assembled main body is formed as a plate with thickness in the front-to-back direction. The additional main body has a cavity for receiving terminal parts and a spear-shaped portion protruding into the cavity to lock the terminal parts in place, and is longer than the pre-assembled main body in the front-rear direction.

4. The connector according to claim 2, wherein, The additional main body is formed as a plate with thickness in the front-to-back direction. The pre-assembled main body has a cavity for receiving terminal parts and a spear-shaped portion protruding into the cavity to lock the terminal parts in place, and is longer than the additional main body in the front-rear direction.

5. The connector according to any one of claims 1 to 4, wherein, The first housing has an outer wall portion that covers the second housing. A window is formed on the outer wall portion, which allows for visual confirmation between the front surface of the sealing body and the rear surface of the pre-assembled body.

6. The connector according to claim 5, wherein, A rotatable support rod is provided on the outer wall, and a cam groove is formed on the rod. The cam groove engages with a cam follower on the opposite housing. The window portion opens at the front end of the outer wall portion, forming a groove to receive the cam follower.

7. The connector according to any one of claims 1 to 4, wherein, An alignment protrusion is formed on either the pre-assembled component or the additional component, protruding toward the other, and an alignment recess is formed on the other component into which the alignment protrusion enters.

Images