Connector and connector connection structure
The connector's conductive housing with protrusions allows for versatile electrical connection with shield bodies, addressing the complexity of accommodating different shield types and improving assembly stability.
Patent Information
- Application Number
- JP2024055665
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-10-10
AI Technical Summary
Existing connectors require different configurations to accommodate various types of shield bodies for electric wires, leading to an increase in the number of parts and complexity.
A connector design featuring a conductive housing with protrusions that can be connected to a shield body, allowing for electrical connection regardless of the shield type, whether inside or outside the insulating coating layer, and accommodating multiple or individual shields for each wire.
The design enhances versatility by enabling connection with various shield types, simplifying assembly, and ensuring stable electrical contact despite external forces.
Smart Images

Figure 2025153276000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a connector that is electrically connected to, for example, a shield body, and a connector connection structure using the connector. [Background technology]
[0002] Conventionally, electrical components mounted on automobiles and the like are connected to each other via connectors attached to each component. Such connectors house terminals connected to electric wires that make up a wire harness. When such a connector is connected to a mating connector, the terminals of the two components are linked and electrically connected.
[0003] The electric wires connected to the above-mentioned connectors are provided with a conductive shield to block external electromagnetic noise or to prevent electromagnetic noise generated by the electric wires from leaking to the outside, thereby preventing malfunction of electrical equipment due to electromagnetic noise. An example of a connector equipped with such a shield is the connector disclosed in Patent Document 1.
[0004] The shield of the above-mentioned electric wire is provided in various forms, such as being disposed inside the insulating coating layer of the shielded electric wire, or being exteriorly mounted on the outside of the insulating coating layer without having a shield inside the insulating coating layer. Even in cases where a shield is provided on the exterior of the electric wire, there are cases where a single shield is used to collectively cover multiple electric wires, or where multiple shields are used to cover each of multiple electric wires. Therefore, it is necessary to prepare connectors corresponding to the various forms of shield, which leads to an increase in the number of parts. [Prior art documents] [Patent documents]
[0005] [Patent Document 1] Japanese Patent Application Publication No. 2017-208307 Summary of the Invention [Problem to be solved by the invention]
[0006] An object of the present invention is to provide a connector and a connector connection structure that can electrically connect a shield body and a housing regardless of the type of the shield body. [Means for solving the problem]
[0007] This invention is characterized in that it is a connector comprising a plurality of electric wires each having a terminal at the end, a conductive housing into which the electric wires are introduced and which houses the terminals therein, and a shielding body which surrounds the electric wires and shields them from electromagnetic noise, wherein the housing is provided with a conductive protrusion which protrudes along the introduced electric wires, and the protrusion is configured to be connectable to the shielding body. The present invention also provides a connector connection structure including the above-mentioned connector and a second connector to be connected to the connector.
[0008] The shield body may be, for example, a so-called braided shield made by braiding metal wires such as copper wires, or a so-called foil shield made of metal foil or the like. The shape of the protrusion is not limited as long as it protrudes from the housing along the electric wire. For example, it may protrude so as to surround part of the outer periphery of the electric wire, or may be a rod or plate shape extending along the electric wire.
[0009] According to the present invention, it is possible to configure a connector that can electrically connect the shield and the housing regardless of the type of the shield. More specifically, the connector comprises a plurality of electric wires each having a terminal at the tip, and a conductive housing into which the electric wires are introduced and which houses the terminals, and is configured so that a conductive protrusion provided on the housing, which protrudes along the introduced electric wires, can be connected to a shield body that blocks electromagnetic noise.
[0010] Therefore, whether the shielded wire has a shield body arranged inside the insulating coating layer, or whether the wire does not have a shield body inside the insulating coating layer but has a shield body exteriorly attached to the insulating coating layer, the conductive protrusion and the shield body can be electrically connected simply by bringing the shield body into contact with the protrusion, regardless of the position or form of the shield body in the wire.
[0011] Furthermore, in the case of the electric wires covered with the above-mentioned shield, whether the plurality of electric wires are covered with a plurality of shields individually or a single shield is used to cover the plurality of electric wires collectively, the protrusion and the shield can be electrically connected by contacting the shield with the above-mentioned protrusion. Therefore, a connector can be configured that can electrically connect the shield and the housing regardless of the type of the shield.
[0012] As an aspect of the present invention, a plurality of the protrusions may be provided corresponding to a plurality of the electric wires. The phrase "provided in multiple numbers corresponding to the electric wires" as mentioned above includes the case where a protrusion is provided for each electric wire, i.e., the case where the number of electric wires and the number of protrusions are the same, and the case where a plurality of protrusions are provided for one electric wire, i.e., the case where the number of electric wires and the number of protrusions are different.
[0013] According to this invention, the shield and the protrusion of each electric wire can be electrically connected individually, which means that the connector can be adapted to various types of shields for electric wires, thereby improving the versatility of the connector.
[0014] For example, if the multiple electric wires are all configured with electric wires sheathed with the above-mentioned shielding bodies, each of the multiple electric wires can be sheathed with multiple shielding bodies and then electrically connected to the protrusion, or the multiple electric wires can be sheathed collectively with a single shielding body and then electrically connected to the protrusion. Furthermore, a predetermined number of the multiple electric wires can be sheathed collectively with a single shielding body, and the remaining electric wires can be sheathed with multiple shielding bodies and then electrically connected to the protrusion. Furthermore, even if the multiple electric wires include a mixture of the above-mentioned shielded electric wires and electric wires sheathed with a shielding body, the shielding body and the protrusion of each electric wire can be electrically connected individually. Therefore, various types of shielding bodies for electric wires can be accommodated.
[0015] As an aspect of the present invention, the protrusion may be formed in a tubular shape through which each of the electric wires can be inserted. The cylindrical shape is not limited to a specific shape as long as it allows an electric wire to be inserted therethrough. For example, it may be a cylindrical shape with a circular cross section, or a cylindrical shape with a polygonal cross section such as a square. Furthermore, the outer shape and the inner peripheral surface of the cylindrical shape do not necessarily have to be the same shape. For example, it may be a cylindrical shape with a polygonal outer shape such as a square and a circular inner peripheral surface. Furthermore, the cylindrical shape does not necessarily have to be the same shape as the cross section of the electric wire. For example, an electric wire with a circular cross section may be inserted into a cylindrical shape with a polygonal cross section such as a square. According to this invention, the outer surface of the electric wire can be surrounded by the protrusion simply by inserting the electric wire into the protrusion, thereby ensuring a sufficient contact area between the shield body and the protrusion and stabilizing the connection state.
[0016] In another aspect of the present invention, the cylindrical protrusion may include a base portion provided on the housing, and a cover portion configured to be detachable from the base portion. The above-mentioned detachable includes those in which the base portion and the cover portion are completely separated, and those in which the base portion and the cover portion are connected via a hinge portion or a connecting portion, etc., so that one of the base portion and the cover portion can be detached from the other.
[0017] According to this invention, a cylindrical protrusion can be formed by simply attaching the cover to the base provided on the housing, and electric wires can be easily inserted into the protrusion. Furthermore, compared to when the protrusion is formed as a single unit, the assembly of the protrusion to the housing can be improved.
[0018] Furthermore, when the inner surface of the cylindrically formed protrusion is formed into a shape corresponding to the outer surface of an electric wire having a circular cross section, the base portion and the cover portion form semicircular inner surfaces, making it possible to easily insert the electric wire into the base portion or the cover portion when the base portion and the cover portion are separated.
[0019] In another aspect of the present invention, a connecting portion may be provided to connect and integrate the plurality of cover portions. This invention allows multiple cover parts connected by connecting parts to be attached together to multiple base parts, thereby further improving the ease of assembly of the protrusions compared to when cover parts are attached individually to multiple base parts.
[0020] As another aspect of the present invention, a fixture may be provided for fixing the shield body that is placed over the outer surface of the cylindrically formed protrusion. The fasteners are not particularly limited in configuration as long as they can fasten the shield to the protrusion. For example, they may be fastening members such as cable ties or band clamps, or they may be fastened by crimping the shield to the protrusion. Furthermore, there is no limit to the number of fasteners; the same number may be used for multiple protrusions, or one fastener may be used to fasten multiple protrusions.
[0021] According to this invention, the shield is fixed to the protrusion by the fixing device, so that the connection between the shield and the protrusion can be reliably established. Furthermore, even if an external force acts on the electric wire, the connection between the shield and the protrusion can be prevented from becoming unstable because the fixing device fixes the shield to the protrusion. Furthermore, when the cylindrical protrusion is composed of a cover and a base, the assembled state of the cover and the base can also be fixed by the fixing device.
[0022] In another aspect of the present invention, a slip-out prevention portion may be provided at the tip end side in the protruding direction of the protruding portion, protruding in a direction intersecting the insertion direction of the electric wires to prevent the fastener from slipping out. The slip-out prevention portion is not particularly limited in configuration as long as it can prevent the fastener from slipping out. For example, it may be configured by recessing a portion of the protrusion radially inward, or by expanding the diameter of a portion of the tip of the protrusion compared to the remaining portion. Furthermore, a so-called flange-shaped structure may be provided on the tip of the protrusion. According to this invention, the fastener can be prevented from accidentally falling off the protrusion, so that the connection between the shield body and the protrusion can be maintained more reliably.
[0023] As another aspect of the present invention, the slip-out prevention portions provided on each of the plurality of protrusions may be aligned in the intersecting direction. The above-mentioned alignment in the cross direction does not necessarily mean that the slip-out prevention parts are arranged in the same position along the cross direction, but also includes cases where the slip-out prevention parts are arranged shifted within a predetermined range in a direction crossing the cross direction.
[0024] According to this invention, the slip-out prevention portions are aligned in the cross direction in the protrusion. Therefore, when using a shielded electric wire having a shield disposed inside the insulating coating layer, whether multiple electric wires are individually sheathed with multiple shields or multiple electric wires are collectively sheathed with a single shield, the fastener can be easily attached to the protrusion. In other words, the workability of attaching the fastener to the protrusion can be improved. [Effects of the Invention]
[0025] According to the present invention, it is possible to provide a connector and a connector connection structure that can electrically connect a shield body and a housing regardless of the type of the shield body. [Brief explanation of the drawings]
[0026] [Figure 1] FIG. 1 is a schematic perspective view of a connector connection structure. [Figure 2] FIG. 2 is a schematic exploded perspective view of a connector connection structure. [Figure 3] FIG. 2 is a schematic exploded perspective view of a connector connection structure. [Figure 4] FIG. 2 is a schematic exploded perspective view of a harness-side connector. [Figure 5] FIG. 2 is a schematic exploded perspective view of a harness-side connector. [Figure 6] FIG. [Figure 7] Enlarged view of part a in Figure 5. [Figure 8] FIG. [Figure 9] 10 is a schematic perspective view showing a shield connection mode in a harness-side connector. FIG. [Figure 10] 10 is a schematic perspective view showing a shield connection mode in a harness-side connector. FIG. [Figure 11] FIG. 10 is a schematic perspective view of a harness-side connector according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0027] An embodiment of the present invention will be described in detail below with reference to FIGS. Fig. 1 shows a schematic perspective view of the connector connection structure A, and Figs. 2 and 3 show schematic exploded perspective views of the connector connection structure A. Figs. 4 and 5 show schematic exploded perspective views of the harness-side connector 1. Fig. 6 shows an explanatory diagram of the harness-side connector 1, Fig. 7 shows an enlarged view of part a in Fig. 4, and Fig. 8 shows an explanatory diagram of the lower shell 41. Figs. 9 and 10 show schematic perspective views showing the connection mode of the shields 34, 34a in the harness-side connector 1.
[0028] 2 to 6 and 8 will be described in detail. Fig. 2 is a schematic exploded perspective view showing the back, right side, and bottom of the connector connection structure A, Fig. 3 is a schematic exploded perspective view showing the front, right side, and top of the connector connection structure A. Fig. 4 is a schematic exploded perspective view showing the front, right side, and top of the harness side connector 1, and Fig. 5 is a schematic exploded perspective view showing the back, right side, and bottom of the harness side connector 1.
[0029] Fig. 6(a) shows a schematic front view of the harness-side connector 1, and Fig. 6(b) shows a schematic enlarged cross-sectional view taken along the line AA in Fig. 6(a). Fig. 8(a) is a schematic perspective view showing the rear, right side, and bottom of the lower shell body 42 in the separated state of the harness-side connector 1, and Fig. 8(b) is a schematic perspective view showing the front, left side, and top of the shell cover 43. In Fig. 8(a), the electric wires 31 are shown by dashed double-dashed lines to clarify the structure of the lower shell body 42.
[0030] Here, the direction in which the harness-side connector 1 and the device-side connector 500 are attached to and detached from each other in FIG. 1 is referred to as the depth direction D. The direction in which the harness-side connector 1 is attached to the device-side connector 500 is referred to as the depth side Db, and the direction in which the harness-side connector 1 is detached from the device-side connector 500 is referred to as the front side Df. Among the directions perpendicular to the depth direction D, the direction connecting the left rear side and the right front side in FIG. 1 is referred to as the width direction W, and the up-down direction is referred to as the height direction H. The left rear side along the width direction W is referred to as the left side Wl, and the right front side is referred to as the right side Wr. The upper side in FIG. 1 is referred to as the upper side Hu, and the lower side is referred to as the lower side Hd. The same applies to FIGS. 2 to 11 below.
[0031] As shown in Figures 1 to 3, the connector connection structure A is a connection structure that electrically connects a harness-side connector 1 attached to a wire harness 3 that bundles insulated electric wires by fitting it with an equipment-side connector 500 provided on an equipment such as a motor equipped in an automobile or the like.
[0032] First, a brief description will be given of the device-side connector 500 that constitutes the connector connection structure A when connected to the harness-side connector 1 described later. As shown in FIGS. 2 and 3, the device-side connector 500 includes three device-side terminals 501 and a device-side housing 510 that accommodates the device-side terminals 501.
[0033] The device-side terminal 501 is a rectangular metal flat plate that is long in the depth direction D, and is electrically connected to an electrical component main body (not shown) that is arranged inside the housing 100. Three device-side terminals 501 are provided such that their main surfaces along the depth direction D and height direction H face each other at a predetermined interval in the width direction W.
[0034] The device side housing 510 is for holding the device side terminal 501 inside, and as shown in Figures 2 and 3, it has a fixed base 511 that is fixed to the housing 100 described later, and a hood portion 512 that stands upright from the fixed base 511.
[0035] 2, the fixed base 511 is integrally formed of a plate-like body that is generally rectangular in front view and a trapezoidal plate-like body that tapers downwards Hd when viewed from the direction (front side Df) in which the harness-side connector 1 is attached to the device-side connector 500. The trapezoidal portion of the fixed base 511 is provided with two bolt holes 513 through which bolts 502 for fixing the device-side housing 510 to the casing 100 are inserted.
[0036] The hood portion 512 is a wall extending from the fixed base portion 511 toward the front side Df so as to surround the central portion of the fixed base portion 511 from above and from the left and right. As shown in Figures 2 and 3, the extension length of the hood portion 512 at a portion spaced a predetermined distance from the end portion on the lower side Hd to the upper side Hu is longer than the extension length of other portions.
[0037] In this way, the device-side connector 500, which is configured to hold the device-side terminals 501 inside the hood portion 512 of the device-side housing 510, is fixed to the housing 100 of an apparatus such as a motor equipped in an automobile or the like by inserting and fastening bolts 502 into the communicating bolt holes 513 and the through holes 101 provided in the housing 100, as shown in Figures 2 and 3.
[0038] Next, the harness-side connector 1 that is connected to the device-side connector 500 assembled in the housing 100 to form the connector connection structure A will be described. As shown in Figures 4 and 5, the harness side connector 1 is composed of a box-shaped inner case 2, a wire harness 3 inserted and held in the inner case 2, an outer shell 4 assembled to cover the inner case 2, a square seal 5, a cover 6 and a wire seal 7 attached to the inner case 2, and a fixing ring 8 attached to the outer shell 4.
[0039] First, a description will be given of the wire harness 3. The wire harness 3 is composed of harness-side terminals 30 and electric wires 31 connected to the harness-side terminals 30 (see FIGS. 4, 5, and 7). As shown in FIGS. 4, 5, and 7, the electric wire 31 is a so-called shielded electric wire having a shield 34 inside, and is configured such that, from the center toward the outer diameter, a conductive core wire 32, an insulating inner coating layer 33, a conductive shield 34, and an insulating outer coating layer 35 are arranged in this order.
[0040] The wire 31 has the outer coating layer 35 peeled off at a location spaced a predetermined distance from the upper side Hu to expose the shield 34. In Figs. 4, 5 and 7, the exposed length of the shield 34 is shown shorter than in Figs. 1 to 3 in order to clarify the internal structure of the wire 31.
[0041] The shield 34 is a component for blocking electromagnetic noise emitted from the conductive core wire 32 and electromagnetic noise from the outside, and is made up of a so-called braided shield made by braiding metal wires such as copper wires.
[0042] As shown in FIGS. 4, 5 and 7, the harness terminal 30 includes a wire connecting portion 301 connected to an end of the upper side Hu of the wire 31, and a terminal connecting portion 302. The terminal connection portion 302 has a pair of side walls that face each other in the width direction W, and when connected to the device-side connector 500, the device-side terminal 501 is inserted between them and connected. In this embodiment, three wire harnesses 3 configured in this manner are provided in parallel along the width direction W.
[0043] 4 and 5, the inner case 2 that holds the wire harness 3 is a box-shaped resin member having openings on a lower side Hd and a rear side Db, and is a member that houses the harness-side terminals 30 of the wire harness 3 and leads the electric wires 31 to the outside. The inner case 2 is integrally formed of a cylindrical harness holding portion 21 and a holding portion main body 22 provided on an upper side Hu of the harness holding portion 21.
[0044] The harness holding portion 21 is a cylindrical body having a rectangular shape in a bottom view, with a width direction W being slightly longer than a depth direction D, and has three insertion holes 211 penetrating in a height direction H. The insertion holes 211 are rectangular holes in bottom view that are longer in the depth direction D than in the width direction W, and as shown in Fig. 5, three insertion holes 211 are arranged in parallel in the width direction W. The three insertion holes 211 arranged in parallel in the width direction W are separated by two partition walls 212 (see Fig. 5).
[0045] The holding portion main body 22 provided on the upper side Hu of such a harness holding portion 21 has an approximately box-like shape with openings on the lower side Hd and the rear side Db, and is composed of a bottom surface portion 221 and a side wall portion 222 standing upright from the bottom surface portion 221, and has a terminal holding portion 223 in the space surrounded by the bottom surface portion 221 and the side wall portion 222.
[0046] The length of the holding portion main body 22 in the depth direction D is slightly longer than the length of the harness holding portion 21 in the depth direction D, and the end face on the front side Df is flush with the harness holding portion 21 in a side view. Therefore, the holding portion main body 22 protrudes slightly from the end of the upper side Hu of the harness holding portion 21 toward the back side Db.
[0047] The bottom surface portion 221 has a thickness substantially equal to the thickness of the plate-like body that constitutes the harness holding portion 21, and is formed in a substantially square shape when viewed from the depth direction D. The side wall portion 222, which together with the bottom surface portion 221 constitutes the holding portion main body 22, stands upright from the outer edge of the bottom surface portion 221 toward the rear side Db, and has a double-wall structure consisting of an outer wall 222a and an inner wall 222b arranged inside the outer wall 222a (see Figure 4).
[0048] The outer wall 222a is a wall formed with a thickness substantially equal to the thickness of the plate-like body that constitutes the bottom surface portion 221. Since the holding portion main body 22 has an opening on the lower side Hd as described above, the portion of the outer wall 222a that stands upright from the outer edge of the bottom surface portion 221 and is arranged on the lower side Hd is provided only at a position where the holding portion main body 22 protrudes from the harness holding portion 21.
[0049] The inner wall 222b is a wall that forms a rectangle that is approximately one size smaller than the rectangle formed by the outer wall 222a. Like the outer wall 222a, the portion of the inner wall 222b that is arranged on the lower side Hd is provided only at a location where the holding portion main body 22 protrudes from the harness holding portion 21. The inner wall 222b is formed so that its extension length from the bottom surface portion 221 is slightly longer than that of the outer wall 222a. Therefore, in the holding portion main body 22, the inner wall 222b protrudes further toward the back side Db than the outer wall 222a.
[0050] In the holding portion main body 22, a terminal holding portion 223 is provided in the internal space surrounded by the bottom surface portion 221 and the side wall portion 222 configured in this manner (see FIG. 4). The terminal holding portion 223 is a portion that accommodates and holds the wire connecting portions 301 and the terminal connecting portions 302 of the harness-side terminals 30 of the wire harness 3, and is configured with a plurality of plate-like bodies that stand upright from the bottom surface portion 221 toward the back side Db. Three such terminal holding portions 223 are provided in the holding portion main body 22, the same number as the harness-side terminals 30.
[0051] In addition, two square seals 5, a cover 6 and a wire seal 7 are attached to the inner case 2. The square seal 5 is a rubber member for sealing gaps. The square seal 5 is provided with a first seal 51 that is attached to the harness holding portion 21 and seals between the assembled portions when the harness holding portion 21 is attached to a lower shell 41 (described later), and a second seal 52 that is attached to the holding portion main body 22 and seals between the connected portions when the harness holding portion 21 is connected to the device-side connector 500 (see FIGS. 4 and 5).
[0052] The cover 6 is a member that prevents the second seal 52 attached to the inner case 2 from slipping out, and is provided with a rectangular cover hole 61 through which the above-mentioned device-side terminal 501 can be inserted (see FIGS. 4 and 5). The wire seal 7 is a member that seals the gap between the electric wires 31 inserted into the insertion holes 211 and the harness holding portion 21 by being assembled to the inner case 2 through which the above-mentioned wire harness 3 is inserted.
[0053] Such a wire seal 7 is a plate-shaped rubber member that has approximately the same shape as the outer edge forming the insertion hole 211 when viewed in a plane, and has a circular seal hole 71 through which the electric wire 31 can be inserted (see Figures 4 and 5). In this embodiment, three wire seals 7 configured as above are provided, which is the same number as the number of the wire harnesses 3 described above.
[0054] The outer shell 4, which is assembled to cover the inner case 2, is a metal member composed of a lower shell 41 assembled to the harness holding portion 21 and an upper shell 44 assembled to the holding portion main body 22 (see Figures 4, 5 and 8).
[0055] As shown in FIGS. 4, 5 and 8, the lower shell 41 is made up of a lower shell main body 42 and a shell cover 43 that is configured to be detachable from the lower shell main body 42. The lower shell main body 42 has a rectangular shape in a plan view that is slightly larger than the harness holding portion 21, and is integrally formed with an upper shell portion 421 that is assembled to the harness holding portion 21 and a lower shell portion 422 that is provided on the lower side Hd of the upper shell portion 421.
[0056] The shell upper portion 421 has a rectangular frame shape in a plan view that is slightly larger than the harness holding portion 21, and is configured with a pair of side wall portions facing each other along the width direction W and a connecting portion that connects both end portions of the side wall portions in the depth direction D. Of the connecting portions, the connecting portion arranged on the front side Df is provided with two bolt holes 42x for bolts that fasten an upper shell 44 and a lower shell 41, which will be described later, together to assemble them.
[0057] The shell lower part 422 is in the shape of a block provided in the approximate center of the frame-shaped shell upper part 421 in the depth direction D (see FIGS. 4 and 5). Specifically, the shell lower part 422 is in the shape of a block formed to straddle the connecting parts of the shell upper part 421. As described above, the shell upper part 421 is formed in a frame shape, and therefore a predetermined space S is formed along the height direction H between the end of the front side Df of the shell upper part 421 and the end of the front side Df of the shell lower part 422.
[0058] Such a shell lower portion 422 has a main body side arcuate groove 423 and a main body side protrusion 424 . 8(a), the body-side arc groove 423 is formed by recessing the surface of the front side Df of the shell lower part 422 in a semicircular shape toward the back side Db. The body-side arc groove 423 is formed so that the bending radius of the edge forming the semicircular shape is slightly larger than the outer diameter of the electric wire 31. The body-side arc groove 423 is formed with a plurality of body-side ribs 423a.
[0059] The body-side rib 423a is an arc-shaped rib protruding from the curved surface that forms the body-side arc-groove 423. The bending radius of the body-side rib 423a is smaller than the outer diameter of the electric wire 31. Three such body-side ribs 423a are provided on the curved surface that forms the body-side arc-groove 423, at the center and both end portions in the height direction H.
[0060] The main body side arc grooves 423 configured in this manner are provided in three positions in the assembled harness side connector 1, where the curved inner surface is positioned on the lower side Hd of the inner edge that forms the seal hole 71 in the above-mentioned wire seal 7.
[0061] The body-side protrusion 424 is a semicircular arc-shaped wall that protrudes from the lower side Hd of the body-side arc groove 423 in the shell lower part 422. The bending radius of the inner peripheral surface of the body-side protrusion 424 is formed to be approximately equal to the bending radius of the body-side arc groove 423. The arc-shaped body-side protrusion 424 protrudes from the shell lower part 422 so that the curved inner peripheral surface is flush with the inner peripheral surface of the body-side arc groove 423.
[0062] Furthermore, the main body side protrusion 424 has a constriction 425 on its outer circumferential surface, constricted radially inward at the center in the height direction H. Therefore, the end of the main body side protrusion 424 on the lower side Hd is larger in diameter than the constriction 425. The constrictions 425 are all provided at the same position, a predetermined distance from the tip end of each of the three main body side protrusions 424 arranged in parallel along the width direction W.
[0063] The shell cover 43, which is configured to be detachable from such a lower shell main body 42, is integrally configured with a plurality of cover side protrusions 431 and a connecting body 432 that connects and integrates the cover side protrusions 431, as shown in Figure 8(b).
[0064] 8(a) and 8(b), the cover-side protrusion 431 has substantially the same shape as the body-side protrusion 424 of the lower shell body 42. That is, the cover-side protrusion 431 is a semicircular arc-shaped wall protruding from a connecting body 432 (described later), and has a constricted portion 425 on the outer circumferential surface, where the central portion in the height direction H is constricted radially inward. Like the body-side protrusions 424, three cover-side protrusions 431 are provided at equal intervals along the width direction W.
[0065] The connector 432 connects the three cover-side protrusions 431 together, and has a cover-side arcuate groove 433 on the surface on the far side Db, the cover-side arcuate groove 433 having the same shape as the body-side arcuate groove 423 of the lower shell body 42. That is, the cover-side arc groove 433 is formed by recessing the surface of the rear side Db of the connector 432 toward the front side Df in a semicircular shape, and three cover-side ribs 433a protrude from the curved surface forming the semicircular shape. The cover-side arc groove 433 is formed so that the curved inner peripheral surface is flush with the inner peripheral surface of the cover-side protrusion 431.
[0066] The upper shell 44, which constitutes the outer shell 4 together with the lower shell 41 and is assembled to the holding portion main body 22, has a shape that is open on a lower side Hd and a rear side Db. The upper shell 44 is composed of a shell bottom surface portion 441 and a shell side wall portion 442 that stands upright from the shell bottom surface portion 441 (see FIGS. 4 and 5).
[0067] The shell bottom surface portion 441 is a substantially rectangular plate-like body that is larger than the bottom surface portion 221 of the holder main body 22 when viewed from the depth direction D, and is provided with two bolt holes 44x near the end portion on the lower side Hd for bolts that assemble the upper shell 44 and the lower shell 41 together. Note that the portion of the shell bottom surface portion 441 where the bolt holes 44x are provided is positioned slightly toward the back side Db compared to other portions, and is configured to be positioned inside the frame-shaped shell upper portion 421 when the upper shell 44 and the lower shell 41 are assembled.
[0068] The shell side wall portion 442, which constitutes the outer shell 4 together with the shell bottom portion 441, stands upright from the outer edge of the shell bottom portion 441 toward the rear side Db, and is composed of a pair of opposing walls 443 that face each other along the width direction W, and a connecting wall 444 that connects the ends of the upper side Hu of the opposing walls 443 along the width direction W.
[0069] The opposing wall 443 is provided with a bolt insertion portion 445 for inserting a bolt 11 for fixing the harness side connector 1 in an assembled state to the housing 100 (see FIGS. 4 to 6). The bolt insertion portion 445 is block-shaped and protrudes outward in the width direction W from the end portion on the rear side Db near the center portion in the height direction H of each opposing wall 443, and has a through hole 445a that penetrates in the depth direction D.
[0070] The above-mentioned harness side connector 1, whose elements are configured in this manner, is held in the inner case 2 with the harness side terminals 30 accommodated in the terminal holding portions 223 of the holding portion main body 22, and the electric wires 31 are each inserted into the insertion holes 211 of the harness holding portions 21.
[0071] Furthermore, the first seal 51 is attached to the harness holding portion 21, the second seal 52 and the cover 6 are attached to the holding portion main body 22, and the wire seals 7 are attached to the three insertion holes 211 through which the electric wires 31 are inserted. As a result, the electric wires 31 are inserted into the seal holes 71 of the wire seal 7 and are led out of the inner case 2. In this way, the inner case 2 holds a part of the wire harness 3 housed therein by the harness holding portion 21 and the holding portion main body 22.
[0072] An outer shell 4 is assembled integrally with the inner case 2 that holds a portion of the wire harness 3 in this manner. Specifically, the inner case 2 is positioned so as to close the openings on the lower side Hd and the rear side Db of the upper shell 44. Then, a portion of the lower side Hd of the upper shell 44 is positioned inside the frame-shaped upper shell part 421, and bolts 450 are inserted into the now-communicating bolt holes 44x and the bolt holes 42x of the lower shell 41 and fastened, thereby assembling them together.
[0073] As described above, in the lower shell 41, the curved inner peripheral surface of the body-side arcuate groove 423 is located at a position disposed on the lower side Hd of the inner edge that forms the seal hole 71 in the wire seal 7, and the body-side protrusion 424 protrudes from the body-side arcuate groove 423. Therefore, by assembling the inner case 2 and the outer shell 4, the three electric wires 31 that are led out to the outside through the above-mentioned seal hole 71 are inserted into the body-side arcuate groove 423 and the body-side protrusion 424 in the lower shell 41 (see FIG. 8(a)).
[0074] Then, with the electric wire 31 inserted into the body-side arc groove 423 and the body-side protrusion 424, the shell cover 43 is attached to the lower shell body 42 in the depth direction D. This closes the space S in the lower shell body 42, and the body-side protrusion 424 and the cover-side protrusion 431 are assembled to form a cylindrical body 45 with the electric wire 31 inserted therein and whose inner circumferential surface is circular corresponding to the circular cross section of the electric wire 31 (see FIG. 6(b)).
[0075] A portion of the exposed shield 34 is fitted over the entire circumferential direction of the cylindrical body 45 with the electric wire 31 inserted therein, and a fixing ring 8, which will be described later, is attached to the outside of the shield 34 (see FIGS. 6(a) and 6(b)). As described above, the outer shell 4 having the cylindrical body 45 and the shield 34 are both made of conductive metal, so that the cylindrical body 45 and the shield 34 are in contact with each other and electrically connected. By electrically connecting the cylindrical body 45 and the shield 34, it is possible to configure a shield that blocks external electromagnetic noise from the harness-side terminal 30 and the electric wire 31, or that prevents electromagnetic noise generated by the harness-side terminal 30 and the electric wire 31 from leaking to the outside.
[0076] As described above, the body-side arc groove 423 and the cover-side arc groove 433 are provided with a plurality of body-side ribs 423a and cover-side ribs 433a that protrude with a bending radius smaller than the outer diameter of the electric wire 31. Therefore, by attaching the shell cover 43 to the lower shell body 42, the body-side ribs 423a and the cover-side ribs 433a can be caused to bite into the electric wire 31. This makes it possible to hold the inserted electric wire 31 in the circumferential and axial directions. Therefore, even if an external force acts on the electric wire 31, it is possible to prevent the electric wire 31 from unintentionally moving while inserted in the body-side arc groove 423 and the cover-side arc groove 433. Therefore, the connection state between the shield 34 and the cylindrical body 45 can be reliably maintained.
[0077] As described above, the fixing ring 8 is attached to the cylindrical body 45 through which the electric wire 31 is inserted and which is covered with the shield 34. The fixing ring 8 is a member having an annular shape in a plan view and an inner diameter slightly larger than the outer diameter of the cylindrical body 45. The fixing ring 8 has a convex portion 81 on a part of its inner peripheral surface that protrudes radially inward to correspond to the above-mentioned constricted portion 425 (see FIGS. 4 to 6). Three fixing rings 8 are provided, corresponding to the number of wire harnesses 3 and the number of cylindrical bodies 45, and each is fitted onto a predetermined position on the electric wires 31 in advance. Such a fixing ring 8 is attached to the cover-side protrusion 431 and the main body-side protrusion 424 that constitute the cylindrical body 45 so that the convex portion 81 fits into the waist portion 425 (see FIG. 6(b)).
[0078] By attaching such a fixing ring 8 to the cylindrical body 45, the shield 34 can be sandwiched together with the cylindrical body 45 over the entire circumferential direction, and the shield 34 and the cylindrical body 45 can be brought into close contact with each other (see FIGS. 4 to 6). This ensures a reliable connection between the shield 34 and the cylindrical body 45. Furthermore, the fixing ring 8 can prevent the cover-side protrusion 431 and the main body-side protrusion 424 that constitute the cylindrical body 45 from being accidentally separated. Note that, because the shield 34 and the cylindrical body 45 are in contact with each other as described above, they can be electrically connected to each other without using the fixing ring 8.
[0079] Furthermore, fixing ring 8 is attached so that convex portion 81 provided on the inner peripheral surface fits into constriction portion 425. This restricts movement of fixing ring 8 in height direction H, thereby preventing fixing ring 8, which has shield 34 sandwiched between it and cylindrical body 45, from accidentally falling off cylindrical body 45. In other words, it is possible to prevent the state in which shield 34 is fixed to cylindrical body 45 by fixing ring 8 from being unintentionally released, thereby reliably maintaining the connected state between shield 34 and cylindrical body 45.
[0080] In the above description, the electric wire 31 is configured such that the shield 34 is provided inside the coating layer, but the electric wire 31 may be configured as a so-called non-shielded electric wire consisting of the core wire 32 and the outer coating layer 35, and the shield 34a may surround the outside of the outer coating layer 35. Hereinafter, a case where an electric wire 31a in which a shield 34a surrounds the outside of an outer coating layer 35 is used instead of the electric wire 31 will be described with reference to FIGS.
[0081] In addition, when using electric wires 31a in which shields 34a surround the outside of the outer coating layer 35, there are cases where, for example, three electric wires 31a are each sheathed with multiple shields 34a, or where three electric wires 31a are collectively sheathed with one shield 34b.
[0082] First, a description will be given of a case where three electric wires 31a are each covered with a plurality of shields 34a, as shown in Fig. 9. The shields 34a are the same as the shields 34 in the electric wire 31 described above, except that they are formed in a tubular shape so as to surround each of the three electric wires 31a, and are made of a so-called braided shield made by braiding metal wires such as copper wires.
[0083] In this way, even when multiple shields 34a are used to sheathe each of the electric wires 31a, the cylindrical body 45 and the shields 34a can be electrically connected in the same way as when the shield 34 of the electric wire 31 described above is used.
[0084] Specifically, in the harness-side connector 1, a cylindrical body 45 with the electric wire 31a inserted therethrough is covered with a portion of each shield 34a near the end thereof, over the entire circumferential direction. Then, by attaching the fixing ring 8 to the cylindrical body 45, the cylindrical body 45 and the shield 34a can be brought into contact with each other and electrically connected to each other. In this manner, similar to the case where the shield 34 of the electric wire 31 is used, the cylindrical body 45 and the shield 34a can be brought into contact with each other and electrically connected to each other. The fixing ring 8 can reliably connect the cylindrical body 45 and the shield 34a, and the constricted portion 425 can prevent the fixing ring 8 from accidentally slipping out of the cylindrical body 45.
[0085] Next, a case will be described in which three electric wires 31a are collectively sheathed with one shield 34b, as shown in Fig. 10. The shield 34b is the same as the above-described shield 34a except that it is formed in a cylindrical shape so as to collectively surround the three electric wires 31a. The shield 34b is configured as a braided shield made by braiding metal wires such as copper wires. When the shield 34b is used, the fixing ring 8 attached to the cylindrical body 45 becomes a fixing ring 8b configured in an oval shape in a plan view. The fixing ring 8b has substantially the same shape as the fixing ring 8 except for the oval shape in a plan view as described above, and is provided on a part of its inner circumferential surface with a convex portion 81b that protrudes radially inward to correspond to the above-described constriction portion 425, similar to the convex portion 81.
[0086] In this way, even when three electric wires 31a are collectively sheathed with one shield 34b, the cylindrical body 45 and the shield 34b can be electrically connected in the same way as when the shield 34 of the electric wire 31 described above is used and when the shield 34a of the electric wire 31a is used.
[0087] Specifically, in the harness-side connector 1, a portion near the end of the shield 34b that is wrapped around the three electric wires 31a is wrapped around the three cylindrical bodies 45 with the electric wires 31a inserted therethrough. Then, by attaching the above-described fixing ring 8b to the cylindrical body 45, the cylindrical body 45 and the shield 34b come into contact with each other and can be electrically connected to each other. In this manner, similar to the case where the shield 34 of the electric wire 31 and the case where the shield 34a of the electric wire 31a are used, the fixing ring 8b can reliably connect the cylindrical body 45 and the shield 34b, and the constriction 425 can prevent the fixing ring 8b from accidentally slipping out of the cylindrical body 45.
[0088] As described above, in the cover-side protrusion 431 and the main body-side protrusion 424 that constitute the cylindrical body 45, the constrictions 425 are all disposed at the same distance from the tip side in the height direction H. Therefore, even when a fixing ring 8b that is oval in plan view is used, the fixing ring 8b can be easily attached to the cylindrical body 45, and the fixing ring 8b attached across three cylindrical bodies 45 can be prevented from tilting or shifting.
[0089] As described above, whether the harness side connector 1 uses the electric wire 31, the three electric wires 31a are each sheathed with multiple shields 34a, or the three electric wires 31a are collectively sheathed with one shield 34b, the harness side connector 1 can be configured with an outer shield structure that provides shielding for the harness side terminals 30 and the electric wires 31 simply by bringing the shields 34, 34a, 34b into contact with the cover side protrusion 431 and the main body side protrusion 424 that form the cylindrical body 45.
[0090] The harness-side connector 1 can be connected to the device-side connector 500 to form a connector connection structure A. Specifically, the harness-side connector 1 is placed on the front side Df of the device-side connector 500 fixed to the housing 100 so that the holding portion main body 22 faces the depth direction D, and the harness-side connector 1 is then moved to the rear side Db. As a result, the hood portion 512 is inserted into the space formed between the outer wall 222a and the inner wall 222b, thereby forming the connector connection structure A. Note that by connecting the harness-side connector 1 to the device-side connector 500, the shields 34, 34a, 34b, the metal outer shell 4, and the metal portion of the device-side connector 500 can form a single ground circuit.
[0091] In this manner, when the device-side connector 500 and the harness-side connector 1 are connected, the harness-side terminal 30 is in contact with the device-side terminal 501. This allows electrical connection to the electrical component body arranged inside the housing 100, and electrical continuity can be established between the device-side terminal 501 and the harness-side terminal 30 electrically connected to the electric wires 31, 31a.
[0092] The harness side connector 1 connected to the device side connector 500 is fixed to the housing 100 by inserting and fastening a bolt 11 through the through hole 445a of the communicating bolt insertion portion 445 and the through hole 102 provided in the housing 100 (see Figures 1, 2 and 3).
[0093] The harness side connector 1 configured in this manner comprises three electric wires 31, 31a each having a harness side terminal 30 at its tip, a conductive outer shell 4 into which the electric wires 31, 31a are introduced and which houses the harness side terminal 30 inside, and shields 34, 34a, 34b which surround the electric wires 31, 31a and shield against electromagnetic noise, and the outer shell 4 is provided with a main body side protrusion 424 and a cover side protrusion 431 which protrude along the introduced electric wires 31, 31a and are conductive, and the main body side protrusion 424 and the cover side protrusion 431 are configured to be connectable to the shields 34, 34a, 34b. The connector connection structure A includes the harness-side connector 1 and a device-side connector 500 that is connected to the harness-side connector 1.
[0094] This makes it possible to configure the harness-side connector 1 that can electrically connect the shields 34, 34a, 34b to the outer shell 4 regardless of the type of the shields 34, 34a, 34b. More specifically, the harness-side connector 1 includes a plurality of electric wires 31, 31a each having a harness-side terminal 30 at its tip, and a conductive outer shell 4 into which the electric wires 31, 31a are introduced and which houses the harness-side terminal 30 therein. The outer shell 4 is provided with a main body-side protrusion 424 and a cover-side protrusion 431 which are conductive and protrude along the introduced electric wires 31, 31a, and are configured to be connectable to shields 34, 34a, 34b which block electromagnetic noise.
[0095] Therefore, even if the electric wire 31 has the shield 34 arranged inside the outer coating layer 35, or even if the electric wire 31a does not have the shield 34 inside the outer coating layer 35 but has the shields 34a, 34b on the outer surface of the outer coating layer 35, simply by bringing the shields 34, 34a, 34b into contact with the body-side protrusion 424 and the cover-side protrusion 431, the conductive body-side protrusion 424 and the cover-side protrusion 431 can be electrically connected to the shields 34, 34a, 34b regardless of the arrangement or form of the shields 34, 34a, 34b in the electric wire 31, 31a.
[0096] Furthermore, in the case of the electric wires 31a armored with the above-described shield body, whether the three electric wires 31a are each armored with a plurality of shields 34a or the three electric wires 31a are collectively armored with a single shield 34b, the main body-side protrusion 424 and the cover-side protrusion 431 can be electrically connected to the shields 34a, 34b by bringing the shields 34a, 34b into contact with the main body-side protrusion 424 and the cover-side protrusion 431. Therefore, it is possible to configure a harness-side connector 1 that can electrically connect the shields 34, 34a, 34b to the outer shell 4 regardless of the type of the shields 34, 34a, 34b.
[0097] The body-side protrusions 424 and the cover-side protrusions 431 are provided in threes to correspond to the three electric wires 31, 31a. This allows the shields 34, 34a, 34b of the respective electric wires 31, 31a to be individually and electrically connected to the main body-side protrusion 424 and the cover-side protrusion 431. In other words, since various forms of the shields 34, 34a, 34b of the electric wires 31, 31a can be accommodated, the versatility of the harness-side connector 1 can be improved.
[0098] For example, if all three electric wires are composed of electric wires 31a, each of the three electric wires 31a can be sheathed with a plurality of shields 34a and then electrically connected to the body-side protrusion 424 and the cover-side protrusion 431, or the three electric wires 31a can be collectively sheathed with a single shield 34b and then electrically connected to the body-side protrusion 424 and the cover-side protrusion 431. Furthermore, a predetermined number of the three electric wires 31a can be collectively sheathed with a single shield 34b, and the remaining electric wires can be sheathed with a plurality of shields 34a and then electrically connected to the body-side protrusion 424 and the cover-side protrusion 431. Therefore, various modes of the shields 34, 34a, 34b for the electric wires 31, 31a can be accommodated.
[0099] Furthermore, the body-side protrusion 424 and the cover-side protrusion 431 form a cylindrical body 45 through which the electric wires 31, 31a can be inserted, respectively. Therefore, the outer circumferential surfaces of the electric wires 31, 31a can be surrounded by the body-side protrusion 424 and the cover-side protrusion 431 simply by inserting the electric wires 31, 31a into the body-side protrusion 424 and the cover-side protrusion 431. This ensures a sufficient contact area between the shields 34, 34a, 34b and the body-side protrusion 424 and the cover-side protrusion 431, thereby stabilizing the connection state.
[0100] The inner surface of the cylindrical body 45 is formed to have a circular cross section corresponding to the outer peripheral surface of the electric wires 31, 31a. The cylindrical body 45 is provided on the outer shell 4 and is composed of a main body-side protrusion 424 having a semicircular cross section and a cover-side protrusion 431 having a semicircular cross section and configured to be detachable from the main body-side protrusion 424.
[0101] As a result, a cylindrical body 45 can be formed simply by attaching the cover-side protrusion 431 to the body-side protrusion 424 provided on the outer shell 4, and the electric wires 31, 31a can be easily inserted into the cylindrical body 45. Furthermore, compared to when the body-side protrusion 424 and the cover-side protrusion 431 are integrally formed, the assembly of the body-side protrusion 424 and the cover-side protrusion 431 in the outer shell 4 can be improved.
[0102] Furthermore, because the connector 432 is provided to connect and integrate the three cover-side protrusions 431, the three cover-side protrusions 431 connected by the connector 432 can be collectively attached to the three body-side protrusions 424. Therefore, compared to attaching the cover-side protrusions 431 to the three body-side protrusions 424 individually, the ease of assembly of the body-side protrusions 424 and the cover-side protrusions 431 can be further improved.
[0103] Furthermore, because fixing rings 8, 8b are provided to fix the shields 34, 34a, 34b that cover the outer surface of the cylindrical body 45, the shields 34, 34a, 34b are fixed to the body-side protrusion 424 and the cover-side protrusion 431. This ensures a reliable connection between the shields 34, 34a, 34b and the body-side protrusion 424 and the cover-side protrusion 431. Furthermore, even if an external force acts on the electric wires 31, 31a, the fixing rings 8, 8b fix the shields 34, 34a, 34b to the cylindrical body 45, preventing the connection between the shields 34, 34a, 34b and the body-side protrusion 424 and the cover-side protrusion 431 from becoming unstable, even if an external force acts on the electric wires 31, 31a. Furthermore, because the cylindrical body 45 is composed of the cover-side protrusion 431 and the body-side protrusion 424, the assembled state of the cover-side protrusion 431 and the body-side protrusion 424 can be fixed by the fixing rings 8, 8b.
[0104] In addition, a constriction 425 is formed in the main body side protrusion 424 and the cover side protrusion 431, and the tip side in the height direction H protrudes in a cross direction (width direction W and depth direction D) that intersects with the protruding direction of the electric wires 31, 31a, thereby preventing the fixing rings 8, 8b from slipping out.
[0105] This makes it possible to prevent the fixing rings 8, 8b from accidentally falling off from the body-side protrusion 424 and the cover-side protrusion 431. Therefore, the connection state between the shields 34, 34a, 34b and the body-side protrusion 424 and the cover-side protrusion 431 can be more reliably maintained.
[0106] Furthermore, the constrictions 425 provided on each of the three body-side protrusions 424 and cover-side protrusions 431 are aligned in the intersecting directions (the width direction W and the depth direction D). Therefore, when using electric wires 31 having a shield 34 disposed inside the outer coating layer 35, the fixing rings 8, 8b can be easily attached to the body-side protrusions 424 and the cover-side protrusions 431, regardless of whether the three electric wires 31a are each sheathed with a plurality of shields 34a or the three electric wires 31a are collectively sheathed with a single shield 34b. In other words, the workability of attaching the fixing rings 8, 8b to the body-side protrusions 424 and the cover-side protrusions 431 can be improved.
[0107] In correspondence between the configuration of this invention and the above-mentioned embodiment, The terminal corresponds to the harness side terminal 30, The electric wires correspond to the electric wires 31 and 31a. The housing is compatible with outer shell 4, The shield body corresponds to the shields 34, 34a, and 34b. The protrusions correspond to the main body side protrusion 424 and the cover side protrusion 431, The connector corresponds to harness side connector 1, The base portion corresponds to the main body side protrusion 424, The cover portion corresponds to the cover-side protrusion 431, The connecting portion corresponds to the connecting body 432, The fixture corresponds to the fixing ring 8, 8b, The protruding direction corresponds to the height direction H, The tip side of the protruding direction corresponds to the lower side Hd, The insertion direction corresponds to the height direction H, The cross direction corresponds to the width direction W and the depth direction D, The slip-out prevention part corresponds to the constriction part 425, The second connector corresponds to the device-side connector 500, The connector connection structure corresponds to connector connection structure A, The present invention is not limited to the configurations of the above-described embodiments, and many other embodiments can be obtained.
[0108] For example, the shields 34, 34a, and 34b are configured as so-called braided shields made by weaving together metal wires such as copper wires, but the shields 34, 34a, and 34b are not limited to braided shields and may be so-called foil shields made of, for example, metal foil.
[0109] Furthermore, although the main body-side protrusion 424 and the cover-side protrusion 431 are formed in an arc shape, there is no limitation on the shape as long as they protrude from the outer shell 4 along the electric wires 31, 31a. For example, they may protrude so as to surround part of the outer periphery of the electric wires 31, 31a, or may be in the shape of a rod or plate extending along the electric wires 31, 31a.
[0110] Furthermore, although the present embodiment has been configured so that there are three body-side protrusions 424 and three cover-side protrusions 431, the same number as the three electric wires 31, 31a, the number of body-side protrusions 424 and cover-side protrusions 431 does not necessarily have to be the same as the three electric wires 31, 31a. For example, two body-side protrusions 424 and two cover-side protrusions 431 may be provided for the three electric wires 31, 31a. In that case, for example, one of the three electric wires may be the electric wire 31 and two may be the electric wires 31a, and the electric wire 31 may be inserted through one body-side protrusion 424 and one cover-side protrusion 431, and the remaining two electric wires 31a may be inserted together through the other body-side protrusion 424 and one cover-side protrusion 431.
[0111] Furthermore, although the cylindrical body 45 formed by the main body-side protrusion 424 and the cover-side protrusion 431 has a cylindrical shape that is circular in a plan view, the shape is not limited as long as the electric wires 31, 31a can be inserted therethrough. For example, the cylindrical body 45 may have a polygonal cross-sectional shape such as a square. Furthermore, the outer shape and the inner peripheral surface of the cylindrical body do not necessarily have to be the same shape. For example, the cylindrical body 45 may have a polygonal outer shape such as a square and a circular inner peripheral surface. Furthermore, the cylindrical body 45 does not necessarily have to have the same cross-sectional shape as the electric wires 31, 31a. For example, the electric wires 31, 31a having a circular cross-sectional shape may be inserted through the cylindrical body 45 having a polygonal cross-sectional shape such as a square.
[0112] Furthermore, the main body side protrusion 424 and the cover side protrusion 431 are configured to be completely separable from each other, but for example, the main body side protrusion 424 and the cover side protrusion 431 may be connected to each other via a hinge portion, a connecting portion, or the like.
[0113] Furthermore, there are no particular limitations on the configuration or shape of the fixing rings 8, 8b as long as they can fix the shield 34 to the body-side protrusion 424 and the cover-side protrusion 431. For example, they may be fixing members such as so-called cable ties or band clamps, or the shield 34 may be fixed by crimping to the body-side protrusion 424 and the cover-side protrusion 431. Furthermore, there are no limitations on the number of fixing rings 8, 8b, and the number of fixing rings 8, 8b may be the same for the multiple body-side protrusions 424 and cover-side protrusions 431, or the number of fixing rings 8, 8b for the multiple body-side protrusions 424 and cover-side protrusions 431 may be different.
[0114] Furthermore, although the constricted portion 425 is provided as a configuration for preventing the fastening rings 8, 8b from slipping out, the configuration is not limited to this as long as the fastening rings 8, 8b can be prevented from slipping out. For example, the constricted portion 425 may be configured by expanding the diameter of a portion of the tip of the main body-side protrusion 424 and the cover-side protrusion 431 compared to the other portions. Furthermore, as shown in FIG. 11, a protruding structure such as a flange 425a may be provided on the tip of the main body-side protrusion 424 and the cover-side protrusion 431.
[0115] Furthermore, the waist portions 425 are provided at the same positions in the width direction W and the depth direction D in the main body-side protrusion 424 and the cover-side protrusion 431. However, the waist portions 425 are not necessarily limited to being arranged at the same positions in the width direction W and the depth direction D, and may be arranged with a shift within a predetermined range in the direction intersecting the height direction H.
[0116] Furthermore, in the lower shell 41, the shell cover 43 is configured to be detachable from the lower shell main body 42 along the depth direction D. However, there are no particular limitations on the direction in which the shell cover 43 is detached. For example, as shown in FIG. 11 , a harness-side connector 1a may be configured in which the shell cover 43 is detachable from the lower shell main body 42 along the width direction W. Of course, the harness-side connector 1a configured in this manner can also achieve the same effects as those achieved by the harness-side connector 1 described above.
[0117] In the above embodiment, the three electric wires inserted into the three body-side protrusions 424 and the cover-side protrusions 431 are all the same (only the electric wire 31 or only the electric wire 31a), but for example, the three electric wires may include both the electric wires 31 and 31a. Even in this case, the shield 34 of the electric wire 31 and the shield 34a of the electric wire 31a can be electrically connected to the body-side protrusions 424 and the cover-side protrusions 431 individually.
[0118] Furthermore, the shield 34a is configured to sheathe each electric wire 31a individually, and the shield 34b is configured to sheathe all three electric wires 31a together. However, for example, it is also possible to sheathe one of the three electric wires located at both ends with the shield 34a, and sheathe the remaining two with the shield 34b. [Explanation of symbols]
[0119] 1, 1a...Harness side connector 4...Outer shell 8,8b...Fixing ring 30...Harness side terminal 31,31a…Electric wire 34, 34a, 34b...Shield 424…Body side protrusion 425...Waist 425a...Flange 431...Protrusion on cover side 432...Connection body 500...Device side connector A...Connector connection structure D: Depth direction H: Height Hd…lower side W: Width direction
Claims
1. A plurality of electric wires each having a terminal at its tip; a conductive housing into which the electric wire is introduced and which accommodates the terminal therein; a shield body that surrounds the electric wire and shields it from electromagnetic noise; The housing includes: a protruding portion that protrudes along the electric wire to be introduced and has conductivity is provided; The protrusion is configured to be connectable to the shield body. connector.
2. The protrusion is A plurality of the electric wires are provided corresponding to the plurality of the electric wires. The connector according to claim 1 .
3. The protrusion is A cylindrical member through which each of the electric wires can be inserted is formed. The connector according to claim 2 .
4. The cylindrically formed protrusion is a base portion provided on the housing; A cover portion configured to be detachable from the base portion is provided. The connector according to claim 3 .
5. A connecting portion is provided to connect and integrate the plurality of cover portions. The connector according to claim 4.
6. A fixture is provided to fix the shield body that is placed over the outer surface of the cylindrically formed protrusion. The connector according to claim 3.
7. A slip-out prevention portion is provided on the tip side of the protruding portion in the protruding direction, protruding in a direction intersecting the insertion direction of the electric wire, and preventing the fastener from slipping out. The connector according to claim 6.
8. The slip-out prevention portions provided on each of the plurality of protrusions are aligned in the cross direction. The connector according to claim 7.
9. A connector according to any one of claims 1 to 8; a second connector connected to the connector; Connector connection structure.
Citation Information
Patent Citations
Connector shield and connector
JP2017208307A