Assembly

Abstract

To provide an assembly comprising a novel structure corresponded to a heavy-current.SOLUTION: An assembly comprises a cable 700 and a connector 100. The cable 700 includes at least four DC electric wires 710. Each of the DC electric wires 710 includes a first coupling part 712 on a tip end. The connector 100 comprises a housing 200 and two DC contacts 400. The housing 200 includes two housing parts 210. The two DC contacts 400 are arranged side by side in a horizontal direction. Each of the DC contacts 400 is housed in a housing part 210. Each of the DC contacts 400 includes a contact part and a second coupling part 420. The second coupling part 420 of each of the DC contacts 400 is connected with the first coupling parts 712 of at least two DC electric wires 710 in the corresponded housing part 210. The first coupling parts 712 connected to the second coupling part 420 are arranged in parallel to the horizontal direction.SELECTED DRAWING: Figure 4

Description

Technical Field

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[0001] The present invention relates to an assembly including a cable and a connector attached to the cable.

Background Art

[0002] As shown in FIG. 18, Patent Document 1 discloses an assembly 900 including a cable 950 and a connector 910 attached to the cable 950. The cable 950 includes two DC wires 952. The connector 910 includes a housing 912 and two DC contacts 914. The DC wires 952 are respectively connected to the DC contacts 914.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the assembly 900 of Patent Document 1, when a large current flows through the DC wire 952, the heat generation of the DC wire 952 increases. In order to reduce the heat generation of the DC wire 952 when a large current flows through the DC wire 952, it is necessary to increase the cross-sectional area of each of the DC wires 952. However, the DC wire 952 with a large cross-sectional area is costly and difficult to handle.

[0005] Therefore, an object of the present invention is to provide an assembly having a new structure corresponding to a large current.

Means for Solving the Problems

[0006] As a first assembly, the present invention is an assembly including a cable and a connector, The cable includes at least four DC wires, Each of the aforementioned DC power lines has a first connecting portion at its end. The connector is attached to the cable, The connector is capable of mating with a mating connector having mating contacts. The connector comprises a housing and two DC contacts. The housing has two compartments, The two DC contacts are aligned horizontally, The DC contacts are housed in the respective housing sections. Each of the aforementioned DC contacts has a contact portion and a second connecting portion. The contact portion is located in front of the second connecting portion in the front-rear direction perpendicular to the horizontal direction. The contact portion of the DC contact makes contact with the mating contact when the connector and the mating connector are mated together. Each of the second connecting portions of the DC contact is connected to the first connecting portions of at least two of the DC wires within the corresponding housing portion. The first connecting portion connected to the second connecting portion is arranged in parallel in the horizontal direction. We provide an assembly.

[0007] Furthermore, the present invention provides a second assembly, which is the first assembly, The assembly further comprises two retention mechanisms, The aforementioned maintenance mechanism corresponds to the respective housing section, Each of the aforementioned maintenance mechanisms restricts the movement of the first connecting portion in an orthogonal plane perpendicular to the front-rear direction, thereby maintaining the parallel arrangement of the first connecting portion within the corresponding housing portion. We provide an assembly.

[0008] Furthermore, the present invention also includes a third assembly, which is a second assembly, The assembly further comprises two retaining members and two sleeves. The holding member holds the DC electric wire, Each of the sleeves is fixed to the holding member, Each of the aforementioned sleeves is located within the aforementioned housing section, The sleeves correspond to the DC contacts, respectively. Each of the sleeves at least partially accommodates the second connecting portion of the corresponding DC contact and the first connecting portion connected to the second connecting portion of the corresponding DC contact. Each of the aforementioned sleeves is provided with a restricted portion, The housing has two restricting parts, The regulating section corresponds to the sleeve, Each of the aforementioned restricting parts protrudes into the aforementioned housing section. Each of the restricting portions faces the corresponding restricted portion of the sleeve in the orthogonal plane, and restricts the movement of the corresponding sleeve in the orthogonal plane. The set of retaining members, the corresponding sleeve, and the corresponding regulating portion function as a single retention mechanism. We provide an assembly.

[0009] Furthermore, the present invention also includes a fourth assembly, which is a third assembly, Each of the aforementioned retaining members functions as a rear waterproofing member. The rear waterproofing member corresponds to the DC contact and the housing, respectively. Each of the aforementioned storage compartments has an inner wall, Each of the aforementioned rear waterproofing members seals the space between the DC electric wire and the corresponding inner wall of the housing. The assembly further comprises two front waterproof members, The aforementioned front waterproofing member corresponds to the DC contact and the housing portion, respectively. Each of the aforementioned front waterproof members seals the space between the corresponding DC contact and the corresponding inner wall of the housing. Each of the second connecting portions of the DC contacts is connected to the first connecting portion between the corresponding front waterproof member and the corresponding rear waterproof member. A component assembly is provided.

[0010] Moreover, the present invention provides, as a fifth component assembly, any one of the component assemblies from the first to the fourth, Each of the second connecting portions of the DC contacts is connected to the first connecting portion of the two DC electric wires, The component assembly further includes terminals respectively connected to the first connecting portions of the DC electric wires, Each of the second connecting portions is sandwiched between two of the terminals in the horizontal direction. A component assembly is provided.

[0011] Moreover, the present invention provides, as a sixth component assembly, the fifth component assembly, Each of the terminals has a first hole, The second connecting portion has a second hole, The component assembly further includes four spring washers and two rivets, Each of the spring washers is located between the terminal and the second connecting portion, The rivets respectively correspond to the DC contacts, Each of the rivets is fastened to the corresponding DC contact through the first hole and the second hole. A component assembly is provided.

Advantages of the Invention

[0012] In the component assembly of the present invention, each of the second connecting portions of the DC contacts is connected to the first connecting portions of at least two DC electric wires within the corresponding accommodating portion. That is, in the component assembly of the present invention, two or more DC electric wires are connected to one DC contact so that less current flows through each of the DC electric wires. As a result, heat generation in each of the DC electric wires is suppressed.

[0013] Furthermore, in the assembly of the present invention, the first connection portion of the DC wire connected to the second connection portion of the DC contact is arranged in parallel horizontally. That is, the connection portion between the DC contact and the DC wire is more prone to generating heat than other parts when a large current is passed through the DC wire, and the first connection portion included in this connection portion is arranged in parallel horizontally. As a result, heat transfer from one side of the first connection portion to the other is reduced compared to the case where the first connection portion is arranged in a vertical direction perpendicular to the horizontal direction. That is, in the assembly of the present invention, the temperature rise of the first connection portion when a large current is passed through the DC wire is reduced. [Brief explanation of the drawing]

[0014] [Figure 1] This is a front perspective view showing an assembly according to an embodiment of the present invention. [Figure 2] Figure 1 is a front view showing the assembled structure. [Figure 3] Figure 2 is a cross-sectional view of the assembly along the line A--A. [Figure 4] This is an enlarged cross-sectional view showing the area enclosed by the dotted line B in Figure 3. [Figure 5] This is a side view showing the assembly in Figure 1. [Figure 6] Figure 5 is a cross-sectional view of the assembly along the line C--C. A portion of the connector is shown in enlargement in the figure. [Figure 7] Figure 1 is a rear perspective view showing the assembled structure. [Figure 8] Figure 7 is a rear perspective view showing the internal structure of the assembly. In the figure, part of the cover has been removed from the connector. [Figure 9] Figure 8 is a partially cutaway rear perspective view showing the internal structure. In the figure, parts of the main housing and sleeve are cut out, and parts of the assembly elements are shown in enlargement. [Figure 10] This is another front perspective view showing the assembly in Figure 1. In the figure, the mating portion is separated from the connector. [Figure 11] Figure 10 is a front perspective view showing the main housing component included in the assembly. [Figure 12] Figure 11 is a front view showing the main part of the housing. [Figure 13] Figure 11 is a rear view showing the main part of the housing. In the figure, a portion of the main part of the housing is shown in enlargement. [Figure 14] Figure 11 is a rear perspective view showing the main part of the housing. [Figure 15] Figure 9 is a perspective view showing the assembly elements included in the internal structure. [Figure 16] Figure 15 is an exploded perspective view showing the assembly elements. In the figure, the sleeve is detached from the connector element, and the second connecting part is connected to the first connecting part. [Figure 17] Figure 15 is another exploded perspective view showing the assembly elements. In the figure, the sleeve has been detached from the connector element. The rivet has also been detached from the DC contact, and the second connection is not connected to any of the first connection parts. [Figure 18] This is a perspective view showing the assembly described in Patent Document 1. In the figure, a portion of the outer shell has been removed from the connector. [Modes for carrying out the invention]

[0015] As shown in Figure 5, the assembly 800 according to an embodiment of the present invention comprises a cable 700 and a connector 100.

[0016] As shown in Figure 4, the cable 700 of this embodiment includes four DC wires 710. However, the present invention is not limited to this, and the cable 700 only needs to include at least four DC wires 710. The DC wires 710 have the same specifications as each other. The DC wires 710 have a core wire 711. The tip of the core wire 711 functions as a first connecting portion 712. That is, each DC wire 710 has a first connecting portion 712 at its tip. The first connecting portion 712 is located at the front end of the DC wire 710 in the front-rear direction. In this embodiment, the front-rear direction is the X direction. Here, the front is the +X direction and the rear is the -X direction.

[0017] As shown in Figure 4, the assembly 800 of this embodiment further comprises four terminals 750.

[0018] Referring to Figure 4, each of the terminals 750 in this embodiment is made of metal. Each terminal 750 is connected to the first connecting portion 712 of the DC electric wire 710. As shown in Figure 17, each of the terminals 750 has a first hole 752. The first hole 752 penetrates the terminal 750 horizontally. In this embodiment, the horizontal direction is the Y direction. The horizontal direction is also the left-right direction. Here, the right is defined as the +Y direction and the left is defined as the -Y direction.

[0019] As shown in Figure 5, the connector 100 of this embodiment is attached to the cable 700. The connector 100 is matable with a mating connector (not shown) having mating contacts (not shown). More specifically, the connector 100 is matable from the rear along the front-to-back direction with respect to the mating connector located in front of the connector 100. Here, the mating contacts of the mating connector are so-called male contacts.

[0020] As shown in Figure 3, the connector 100 comprises a housing 200 and two DC contacts 400.

[0021] Referring to Figure 10, the housing 200 in this embodiment is made of resin. The housing 200 has two covers 204, a fitting portion 205, and a housing main portion 208.

[0022] Referring to Figure 10, the cover 204 in this embodiment is attached to both sides of the connector 100 in the horizontal direction.

[0023] As shown in Figure 1, the mating portion 205 in this embodiment defines the front end of the housing 200 in the front-rear direction. The mating portion 205 is received by the mating portion receiving portion of the mating connector when the connector 100 and the mating connector are mated together.

[0024] As shown in Figure 4, the main housing portion 208 has two housing sections 210. That is, the housing 200 has two housing sections 210.

[0025] As shown in Figure 13, each of the housing sections 210 in this embodiment is a hole with a circular cross-section perpendicular to the front-rear direction. The housing section 210 penetrates the main housing section 208 in the front-rear direction. As shown in Figures 3 and 4, each of the housing sections 210 has an inner wall 212. The inner wall 212 defines the outer end of the housing section 210 in the direction perpendicular to the front-rear direction.

[0026] As shown in Figure 11, the main housing portion 208 of this embodiment has two first cylindrical portions 2081 and two second cylindrical portions 2082.

[0027] As shown in Figures 13 and 14, each of the first cylindrical portions 2081 in this embodiment has a substantially cylindrical shape extending in the front-rear direction. The first cylindrical portion 2081 is located behind the second cylindrical portion 2082 in the front-rear direction. The first cylindrical portion 2081 defines the rear end of the housing main portion 208 in the front-rear direction. The two first cylindrical portions 2081 are not in communication in the horizontal direction. The first cylindrical portion 2081 has a first housing portion 213.

[0028] As shown in Figure 13, the first housing portion 213 in this embodiment is a hole with a circular cross-section perpendicular to the front-rear direction. The first housing portion 213 has a first inner wall 2132. The first inner wall 2132 defines the outer end of the first housing portion 213 in a direction perpendicular to the front-rear direction. As shown in Figure 4, the first connecting portion 712 is housed in the first housing portion 213. That is, the first connecting portion 712 is housed in the housing portion 210. The terminal 750 is housed in the first housing portion 213. That is, the terminal 750 is housed in the housing portion 210.

[0029] As shown in Figure 13, the first cylindrical portion 2081 of this embodiment each has a restricting portion 220. That is, the housing 200 has two restricting portions 220.

[0030] As shown in Figure 13, the restricting portion 220 of this embodiment is located near the upper end of the first housing portion 213. The restricting portion 220 protrudes into the first housing portion 213. That is, each of the restricting portions 220 protrudes into the housing portion 210. The restricting portion 220 is composed of two projections 222. Each of the projections 222 extends downward in the vertical direction. Each of the projections 222 extends in a direction oblique to both the vertical and horizontal directions. The projections 222 protrude downward in the vertical direction from the first inner wall 2132 of the upper part of the first housing portion 213. That is, the projections 222 protrude downward in the vertical direction from the inner wall 212 of the upper part of the housing portion 210. In this embodiment, the vertical direction is the Z direction. Here, upward is the +Z direction and downward is the -Z direction.

[0031] As shown in Figures 11 and 12, each of the second cylindrical portions 2082 in this embodiment has a substantially cylindrical shape extending in the front-rear direction. The second cylindrical portion 2082 is located in front of the first cylindrical portion 2081 in the front-rear direction. The second cylindrical portion 2082 defines the front end of the housing main portion 208 in the front-rear direction. The two second cylindrical portions 2082 are located apart in the horizontal direction. As shown in Figure 2, the second cylindrical portion 2082 is surrounded by the fitting portion 205 in a direction perpendicular to the front-rear direction. As shown in Figure 3, in the front-rear direction, the front end of the second cylindrical portion 2082 is located behind the front end of the fitting portion 205. The second cylindrical portion 2082 has a second housing portion 214. The housing portion 210 includes a first housing portion 213 and a second housing portion 214.

[0032] As shown in Figure 13, the second housing portion 214 in this embodiment is a hole with a circular cross-section perpendicular to the front-rear direction. Referring to Figures 3 and 4, the second housing portion 214 is located in front of the first housing portion 213 in the front-rear direction. The second housing portion 214 has a second inner wall 2142. The second inner wall 2142 defines the outer end of the second housing portion 214 in the direction perpendicular to the front-rear direction. The inner wall 212 includes the first inner wall 2132 and the second inner wall 2142.

[0033] Referring to Figure 17, each of the DC contacts 400 in this embodiment is made of metal. The DC contacts 400 are so-called female contacts. As shown in Figures 3 and 4, the two DC contacts 400 are arranged horizontally. Each DC contact 400 is housed in a housing 210. Each DC contact 400 has a contact portion 410 and a second connecting portion 420.

[0034] Referring to Figures 3 and 4, the contact portion 410 in this embodiment is located in front of the second connecting portion 420 in the front-rear direction perpendicular to the horizontal direction. The contact portion 410 of the DC contact 400 contacts the mating contact when the connector 100 and the mating connector are mated with each other. The contact portion 410 is located near the front end of the DC contact 400 in the front-rear direction. The contact portion 410 is housed in the second housing portion 214.

[0035] As shown in Figure 17, the second connecting portion 420 in this embodiment defines the rear end of the DC contact 400 in the front-rear direction. The second connecting portion 420 is larger in the vertical direction than in the horizontal direction. The second connecting portion 420 has a second hole 422. The second hole 422 penetrates the second connecting portion 420 in the horizontal direction. As shown in Figure 4, the second connecting portion 420 is housed in the first housing portion 213. That is, the second connecting portion 420 is housed in the housing portion 210.

[0036] As shown in Figure 4, each second connection portion 420 of the DC contact 400 is connected to the first connection portion 712 of the two DC wires 710. As a result, two DC wires 710 are connected to one DC contact 400, and less current flows through each of the DC wires 710. Therefore, in the assembly 800 of this embodiment, heat generation in each of the DC wires 710 is suppressed.

[0037] However, the present invention is not limited thereto, and each second connection portion 420 of the DC contact 400 may be connected to the first connection portion 712 of three or more DC wires 710. That is, each second connection portion 420 of the DC contact 400 only needs to be connected to the first connection portion 712 of at least two DC wires 710 within the corresponding housing portion 210. As a result, two or more DC wires 710 are connected to one DC contact 400, so that less current flows through each of the DC wires 710. Consequently, heat generation in each of the DC wires 710 is further suppressed.

[0038] Referring to Figure 4, the first connecting parts 712 connected to the second connecting part 420 are located at the same position in the vertical direction. The first connecting parts 712 connected to the second connecting part 420 are located at the same position in the front-rear direction. The first connecting parts 712 connected to the second connecting part 420 are arranged in parallel in the horizontal direction.

[0039] As described above, the first connecting portion 712 connected to the second connecting portion 420 is arranged in parallel in the horizontal direction. This reduces heat transfer from one of the first connecting portions 712 to the other, compared to the case where the first connecting portions 712 are arranged in the vertical direction perpendicular to the horizontal direction. In other words, in the assembly 800 of this embodiment, the temperature rise of the first connecting portion 712 when a large current is passed through the DC wire 710 is reduced.

[0040] As shown in Figure 4, each of the second connecting portions 420 is sandwiched between two terminals 750 in the horizontal direction. The two terminals 750 that sandwich the second connecting portion 420 are located at the same position relative to each other in the vertical direction. The two terminals 750 that sandwich the second connecting portion 420 are located at the same position relative to each other in the front-to-back direction.

[0041] As shown in Figure 4, the assembly 800 of this embodiment further comprises two retaining members 300 and two sleeves 600.

[0042] Referring to Figure 17, the retaining member 300 in this embodiment is made of an elastic insulator such as rubber. Each retaining member 300 has two through holes 310 and four holding holes 320. Two DC electric wires 710 are inserted into the two through holes 310 of the retaining member 300, respectively. That is, the retaining member 300 holds the DC electric wires 710. Each retaining member 300 functions as a rear waterproofing member 300. As shown in Figure 4, the rear waterproofing member 300 is located within the housing section 210. The rear waterproofing member 300 is located within the first housing section 213. More specifically, the rear waterproofing member 300 is located at the rear end of the first housing section 213 in the front-rear direction. Referring to Figures 3 and 4, the rear waterproofing member 300 is located behind the second housing section 214 in the front-rear direction. The rear waterproof member 300 is located behind the contact portion 410 in the front-rear direction. The rear waterproof member 300 is located behind the second connecting portion 420 in the front-rear direction. The rear waterproof member 300 is located behind the terminal 750 in the front-rear direction. The rear waterproof member 300 is located behind the first connecting portion 712 in the front-rear direction. The rear waterproof member 300 corresponds to the DC contact 400 and the housing portion 210, respectively. Each of the rear waterproof members 300 seals the space between the DC wire 710 and the inner wall 212 of the corresponding housing portion 210. More specifically, each of the rear waterproof members 300 seals the space between the DC wire 710 and the first inner wall 2132 of the first housing portion 213 of the corresponding housing portion 210.

[0043] As shown in Figure 16, each of the sleeves 600 in this embodiment extends in the front-rear direction. Each of the sleeves 600 has a substantially C-shaped cross-section in a plane perpendicular to the front-rear direction. The sleeve 600 is open at the top in the vertical direction. That is, the sleeve 600 has an opening 605 at its upper end in the vertical direction.

[0044] Referring to Figure 6, each end of the approximately C-shaped cross-section of the sleeve 600 functions as a restricted portion 610. That is, each sleeve 600 is provided with a restricted portion 610. The restricting portion 220 corresponds to each sleeve 600. Each restricting portion 220 faces the restricted portion 610 of the corresponding sleeve 600 in an orthogonal plane perpendicular to the front-rear direction, and restricts the movement of the corresponding sleeve 600 in the orthogonal plane. Specifically, referring to Figures 6 and 13, the projection 222 of the restricting portion 220 faces each end of the approximately C-shaped cross-section of the corresponding sleeve 600 in the orthogonal plane, and restricts the movement of the corresponding sleeve 600 in the orthogonal plane. At this time, the projection 222 of the restricting portion 220 is located within the opening 605 of the corresponding sleeve 600.

[0045] As shown in Figure 4, each sleeve 600 is located within the housing section 210. More specifically, each sleeve 600 is located within the first housing section 213. Each sleeve 600 corresponds to a DC contact 400. Each sleeve 600 houses the second connecting section 420 of the corresponding DC contact 400 and the first connecting section 712 connected to the second connecting section 420 of the corresponding DC contact 400. However, the present invention is not limited thereto, and each sleeve 600 only needs to at least partially house the second connecting section 420 of the corresponding DC contact 400 and the first connecting section 712 connected to the second connecting section 420 of the corresponding DC contact 400.

[0046] Referring to Figure 16, the sleeve 600 has four retaining protrusions 620. In this embodiment, the retaining protrusions 620 define the rear end of the sleeve 600 in the front-rear direction. Each of the retaining protrusions 620 extends in the front-rear direction. As can be seen from Figures 15 and 16, the retaining protrusions 620 of the sleeve 600 are each inserted into and held in the retaining holes 320 of the retaining member 300. That is, the sleeve 600 is fixed to the retaining member 300.

[0047] As shown in Figures 4 and 6, a set of retaining members 300, a corresponding sleeve 600, and a corresponding restricting portion 220 functions as one retention mechanism 500. That is, the assembly 800 of this embodiment further comprises two retention mechanisms 500. Each retention mechanism 500 corresponds to a housing portion 210.

[0048] As described above, in the assembly 800 of this embodiment, each of the restricting portions 220 of the housing 200 restricts the movement of the corresponding sleeve 600 in an orthogonal plane, the sleeve 600 is fixed to the corresponding holding member 300, and the holding member 300 holds the DC electric wire 710 having the first connecting portion 712. That is, the parallel arrangement of the first connecting portion 712 of the DC electric wire 710 within the housing portion 210 is maintained by the holding member 300 that holds the DC electric wire 710, the corresponding sleeve 600, and the corresponding restricting portion 220. In other words, each of the holding mechanisms 500 restricts the movement of the first connecting portion 712 in an orthogonal plane perpendicular to the front-rear direction of the first connecting portion 712, thereby maintaining the parallel arrangement of the first connecting portion 712 within the corresponding housing portion 210.

[0049] As described above, the assembly 800 of this embodiment is equipped with two maintenance mechanisms 500 that maintain the parallel arrangement of the first connecting parts 712 within the corresponding housing section 210. This prevents the arrangement of the first connecting parts 712 within the housing section 210 from changing from a parallel arrangement, even if the connector 100 of the assembly 800 is repeatedly attached to and detached from the mating connector, and prevents the transfer of heat from one of the first connecting parts 712 to the other from increasing compared to when the assembly 800 was first put into use.

[0050] As shown in Figure 4, the assembly 800 of this embodiment further comprises two front waterproof members 350.

[0051] Referring to Figure 17, each of the front waterproof members 350 is made of an elastic insulator such as rubber. As shown in Figure 4, each of the front waterproof members 350 is located within the housing 210. The front waterproof member 350 is located within the first housing 213. More specifically, the front waterproof member 350 is located at the front end of the first housing 213 in the front-rear direction. Referring to Figures 3 and 4, the front waterproof member 350 is located behind the second housing 214 in the front-rear direction. The front waterproof member 350 is located behind the contact portion 410 in the front-rear direction. The front waterproof member 350 is located in front of the second connecting portion 420 in the front-rear direction. The front waterproof member 350 is located in front of the terminal 750 in the front-rear direction. The front waterproof member 350 is located in front of the first connecting portion 712 in the front-rear direction. The front waterproof member 350 is located in front of the DC power line 710 in the front-rear direction. The front waterproof member 350 is located in front of the rear waterproof member 300 in the front-rear direction. The second connecting portion 420 is located between the front waterproof member 350 and the rear waterproof member 300 in the front-rear direction. The terminal 750 is located between the front waterproof member 350 and the rear waterproof member 300 in the front-rear direction. The first connecting portion 712 is located between the front waterproof member 350 and the rear waterproof member 300 in the front-rear direction. A portion of the DC power line 710 is located between the front waterproof member 350 and the rear waterproof member 300 in the front-rear direction. The sleeve 600 is located between the front waterproof member 350 and the rear waterproof member 300 in the front-rear direction. The front waterproof member 350 corresponds to the DC contact 400 and the housing portion 210, respectively. Each of the front waterproof members 350 seals the space between the corresponding DC contact 400 and the inner wall 212 of the corresponding housing 210. More specifically, each of the front waterproof members 350 seals the space between the corresponding DC contact 400 and the first inner wall 2132 of the first housing 213 of the corresponding housing 210. The second connecting portion 420 of each DC contact 400 is connected to the first connecting portion 712 between the corresponding front waterproof member 350 and the corresponding rear waterproof member 300.

[0052] As described above, each of the rear waterproof members 300 seals the space between the DC power line 710 and the inner wall 212 of the corresponding housing 210, and each of the front waterproof members 350 seals the space between the corresponding DC contact 400 and the inner wall 212 of the corresponding housing 210. Also, as described above, each of the second connecting portions 420 of the DC contact 400 is connected to the first connecting portion 712 between the corresponding front waterproof member 350 and the corresponding rear waterproof member 300. As a result, the space where the connection portion between the second connecting portion 420 and the first connecting portion 712 exists is prevented from being infiltrated by water droplets from the outside of the front waterproof member 350 and the rear waterproof member 300. In other words, the connection portion between the second connecting portion 420 and the first connecting portion 712 is waterproof.

[0053] Referring to Figures 4 and 17, the assembly 800 of this embodiment further comprises four spring washers 770 and two rivets 780.

[0054] Referring to Figure 17, each of the spring washers 770 in this embodiment is made of metal. As shown in Figure 16, each of the spring washers 770 is located between the terminal 750 and the second connecting portion 420. That is, each of the spring washers 770 is located between the terminal 750 and the second connecting portion 420 in the horizontal direction. The spring washer 770 is located in the same position as the terminal 750 in the vertical direction. The spring washer 770 is located in the same position as the terminal 750 in the front-rear direction. The spring washer 770 is located in the same position as the second connecting portion 420 in the vertical direction. The spring washer 770 is located in the same position as the second connecting portion 420 in the front-rear direction.

[0055] As shown in Figure 4, the spring washer 770 is located within the housing 210. The spring washer 770 is located within the first housing 213. Referring to Figures 3 and 4, the spring washer 770 is located behind the second housing 214 in the front-rear direction. The spring washer 770 is located behind the contact portion 410 in the front-rear direction. The spring washer 770 is located behind the front waterproof member 350 in the front-rear direction. The spring washer 770 is located in front of the first connecting portion 712 in the front-rear direction. The spring washer 770 is located in front of the rear waterproof member 300 in the front-rear direction. The spring washer 770 is located between the front waterproof member 350 and the rear waterproof member 300 in the front-rear direction.

[0056] Referring to Figure 17, each of the rivets 780 in this embodiment is made of metal. As shown in Figure 4, the rivet 780 is located within the housing portion 210. The rivet 780 is located within the first housing portion 213. Referring to Figures 3 and 4, the rivet 780 is located behind the second housing portion 214 in the front-rear direction. The rivet 780 is located behind the contact portion 410 in the front-rear direction. The rivet 780 is located behind the front waterproof member 350 in the front-rear direction. The rivet 780 is located at the same position as the second connecting portion 420 in the front-rear direction. The rivet 780 is located in front of the first connecting portion 712 in the front-rear direction. The rivet 780 is located at the same position as the terminal 750 in the front-rear direction. The rivet 780 is located in front of the rear waterproof member 300 in the front-rear direction. The rivet 780 is located between the front waterproof member 350 and the rear waterproof member 300 in the front-rear direction. Each rivet 780 corresponds to a DC contact 400. As can be seen from Figures 16 and 17, each rivet 780 is fastened to the corresponding DC contact 400 through the first hole 752 and the second hole 422. The first connector 712 is fastened to the second connector 420 by rivets 780.

[0057] Referring to Figure 16, the DC contact 400, the front waterproof member 350, the spring washer 770, the rivet 780, the terminal 750, the rear waterproof member 300, and the DC wire 710 constitute a connector element 550. In other words, the assembly 800 has two connector elements 550.

[0058] Referring to Figure 15, a pair of connector elements 550 and sleeves 600 constitute an assembly element 650. That is, the assembly 800 has two assembly elements 650.

[0059] Although the present invention has been described in detail with reference to embodiments above, the present invention is not limited thereto, and various modifications are possible.

[0060] In the assembly 800 of this embodiment, the first connecting portion 712 was fastened to the second connecting portion 420 with a rivet 780, but the present invention is not limited thereto. The first connecting portion 712 may also be fastened to the second connecting portion 420 with screws and nuts. That is, the assembly 800 may have two screws and two nuts instead of two rivets 780.

[0061] In the assembly 800 of this embodiment, each of the housing sections 210 is a hole with a circular cross-section perpendicular to the front-rear direction, the restricting section 220 protrudes into the housing section 210, and the restricted section 610 is the end of the approximately C-shaped cross-section of each of the sleeves 600. However, the present invention is not limited thereto. The configuration of the assembly 800 may be changed, for example, as follows: the housing section 210 is a hole with a polygonal cross-section perpendicular to the front-rear direction; the sleeve 600 is a polygonal tube corresponding to the shape of the housing section 210; the corners of the polygonal hole of the housing section 210 function as restricting sections 220; the corners of the polygonal tube of the sleeve 600 function as restricted sections 610. [Explanation of Symbols]

[0062] 100 connectors 200 Housing 204 Cover 205 Fitting part 208 Housing Main Section 2081 1st cylinder part 2082 Second cylinder part 210 Storage Unit 212 Inner wall 213 First Detention Unit 2132 First Inner Wall 214 Second Detention Unit 2142 Second Inner Wall 220 Regulatory Department 222 Protrusion 300 Retaining member (rear waterproofing member) 310 Through hole 320 Retaining hole 350 Front waterproof member 400 DC Contact 410 Contact area 420 2nd connection part 422 Hole 2 500 Maintenance Mechanism 550 Connector Elements 600 sleeves 605 Aperture 610 Regulated part 620 Retaining protrusion 650 Assembly Elements 700 Cable 710 DC wire 711 Core wire 712 1st connection part 750 terminals 752 Hole 1 770 Spring Washer 780 rivets 800 assembly

Claims

1. An assembly comprising a cable and a connector, The cable includes at least four DC wires, Each of the aforementioned DC power lines has a first connecting portion at its end. The connector is attached to the cable, The connector is capable of mating with a mating connector having mating contacts. The connector comprises a housing and two DC contacts. The housing has two compartments, The two DC contacts are aligned horizontally, The DC contacts are housed in the respective housing sections. Each of the DC contacts has a contact portion and a second connecting portion. The contact portion is located in front of the second connecting portion in the front-rear direction perpendicular to the horizontal direction. The contact portion of the DC contact makes contact with the mating contact when the connector and the mating connector are mated together. Each of the second connecting portions of the DC contact is connected to the first connecting portions of at least two DC wires within the corresponding housing portion. The first connecting portion connected to the second connecting portion is arranged in parallel in the horizontal direction, Each of the second connection portions of the DC contact is connected to the first connection portions of the two DC wires. The assembly further comprises terminals connected to the first connecting portion of the DC electric wire, Each of the second connecting portions is sandwiched between the two terminals in the horizontal direction. assembly.

2. The assembly according to claim 1, The assembly further comprises two maintenance mechanisms, The aforementioned maintenance mechanism corresponds to the respective housing section, Each of the aforementioned maintenance mechanisms restricts the movement of the first connecting portion in an orthogonal plane perpendicular to the front-rear direction, thereby maintaining the parallel arrangement of the first connecting portion within the corresponding housing portion. assembly.

3. The assembly according to claim 2, The assembly further comprises two retaining members and two sleeves. The holding member holds the DC electric wire, Each of the sleeves is fixed to the holding member, Each of the aforementioned sleeves is located within the aforementioned housing section, The sleeves correspond to the DC contacts, respectively. Each of the sleeves at least partially accommodates the second connecting portion of the corresponding DC contact and the first connecting portion connected to the second connecting portion of the corresponding DC contact. Each of the aforementioned sleeves is provided with a restricted portion, The housing has two restricting parts, The regulating section corresponds to the sleeve, Each of the aforementioned restricting parts protrudes into the aforementioned housing section. Each of the restricting portions faces the corresponding restricted portion of the sleeve in the orthogonal plane, and restricts the movement of the corresponding sleeve in the orthogonal plane. The set of retaining members, the corresponding sleeve, and the corresponding restricting portion function as a single retention mechanism. assembly.

4. The assembly according to claim 3, Each of the aforementioned retaining members functions as a rear waterproofing member. The rear waterproofing member corresponds to the DC contact and the housing, respectively. Each of the aforementioned storage compartments has an inner wall, Each of the aforementioned rear waterproofing members seals the space between the DC electric wire and the corresponding inner wall of the housing. The assembly further comprises two front waterproof members, The aforementioned front waterproofing member corresponds to the DC contact and the housing portion, respectively. Each of the aforementioned front waterproof members seals the space between the corresponding DC contact and the corresponding inner wall of the housing. Each of the second connecting portions of the DC contact is connected to the first connecting portion between the corresponding front waterproof member and the corresponding rear waterproof member. assembly.

5. The assembly according to claim 1, Each of the aforementioned terminals has a first hole, The second connecting portion has a second hole, The assembly further comprises four spring washers and two rivets. Each of the spring washers is located between the terminal and the second connecting portion. The aforementioned rivets correspond to the aforementioned DC contacts, Each of the rivets is secured to the corresponding DC contact through the first hole and the second hole. assembly.

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