connector unit

Abstract

The present application aims at further improving electromagnetic shielding effect in a connector unit. Provided are a first connector; a second connector; a plurality of electric wires electrically connecting the first connector and the second connector; an electromagnetic shielding member covering the plurality of electric wires; an electromagnetic shielding cover fixed to the first connector in a state of covering the first connector; and a conductive bracket fixed to a grounding target site in a state of being separated from the second connector. The electromagnetic shielding cover includes a cover main body and a cover fixing plate, the cover fixing plate is fixed to the cover main body, one end of the electromagnetic shielding member is fixed to the electromagnetic shielding cover by being clamped by the cover main body and the cover fixing plate, the conductive bracket is fixed to the other end of the electromagnetic shielding member, and the conductive bracket includes a reinforcing rib portion protruding in a thickness direction of the conductive bracket.

Description

Technical Field

[0001] This disclosure relates to a connector unit. Background Technology

[0002] For example, Patent Document 1 discloses a connector unit used in vehicles, etc. This connector unit includes a first connector, a second connector, and multiple wires electrically connecting the first and second connectors. Furthermore, the connector unit includes an electromagnetic shielding member covering the multiple wires, an electromagnetic shielding cover fixed to one end of the electromagnetic shielding member, and a bracket fixed to the other end of the electromagnetic shielding member. The electromagnetic shielding member is, for example, a metal braid formed in the form of conductive sheets. The electromagnetic shielding cover is fixed to the first connector in such a way that it covers the first connector. The end of the electromagnetic shielding member is clamped by a bending fixing portion formed by bending and deforming a portion of the electromagnetic shielding cover in a folded-back manner, thereby fixing the electromagnetic shielding member to the electromagnetic shielding cover.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2017-22264 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] In the aforementioned electromagnetic shielding cover, the bending and fixing portion folds back from the electromagnetic shielding cover towards the side from which the electromagnetic shielding member is led out. Therefore, an opening is formed in the electromagnetic shielding cover along with the forming of the bending and fixing portion. Here, it is desirable to further improve the shielding effect achieved by the electromagnetic shielding cover, electromagnetic shielding member, etc.

[0008] Therefore, the purpose of this disclosure is to further improve the electromagnetic shielding effect in connector units.

[0009] Technical solutions for solving the problem

[0010] The connector unit disclosed herein includes: a first connector; a second connector; a plurality of wires electrically connecting the first connector and the second connector; an electromagnetic shielding member covering the plurality of wires in an electromagnetically shielding state; an electromagnetic shielding cover fixed to the first connector in a state covering the first connector; and a conductive bracket fixed to a grounding object portion in a state separate from the second connector. The electromagnetic shielding cover includes a cover body and a cover fixing plate, the cover fixing plate being fixed to the cover body. One end of the electromagnetic shielding member is fixed to the electromagnetic shielding cover by being clamped by the cover body and the cover fixing plate. The conductive bracket is fixed to the other end of the electromagnetic shielding member. The conductive bracket includes a reinforcing rib that protrudes in the thickness direction of the conductive bracket.

[0011] Invention Effects

[0012] According to this disclosure, the electromagnetic shielding effect in the connector unit is further improved. Attached Figure Description

[0013] Figure 1 This is a perspective view showing the connector unit involved in the embodiment.

[0014] Figure 2 This is a side view showing the connector unit.

[0015] Figure 3 This is a three-dimensional view showing the electromagnetic shielding unit.

[0016] Figure 4 This is an exploded perspective view showing the electromagnetic shielding unit.

[0017] Figure 5 This diagram shows the fixing points of the electromagnetic shielding component and the electromagnetic shielding cover.

[0018] Figure 6 This diagram shows the fixing points of the conductive bracket and the electromagnetic shield.

[0019] Figure 7 This is a diagram showing the fixed parts of the conductive bracket and the electromagnetic shield from other angles. Detailed Implementation

[0020] [Description of embodiments of this disclosure]

[0021] First, embodiments of this disclosure will be described.

[0022] The connector unit disclosed herein is as follows.

[0023] (1) A connector unit comprising: a first connector; a second connector; a plurality of wires electrically connecting the first connector and the second connector; an electromagnetic shielding member covering the plurality of wires in an electromagnetically shielding state; an electromagnetic shielding cover fixed to the first connector in a state covering the first connector; and a conductive bracket fixed to a grounding object portion in a state separate from the second connector, the electromagnetic shielding cover comprising a cover body and a cover fixing plate, the cover fixing plate being fixed to the cover body, one end of the electromagnetic shielding member being fixed to the electromagnetic shielding cover by being clamped by the cover body and the cover fixing plate, and the conductive bracket being fixed to the other end of the electromagnetic shielding member, the conductive bracket comprising a reinforcing rib protruding in the thickness direction of the conductive bracket.

[0024] According to this connector unit, one end of the electromagnetic shielding member is fixed by being clamped between the cover body and the cover fixing plate. Therefore, even if the electromagnetic shielding cover has no openings, the electromagnetic shielding member can be fixed to the electromagnetic shielding cover. Furthermore, the conductive bracket can be fixed to the grounding target area and grounded in a state detached from the second connector. At this time, reinforcing ribs are formed in the conductive bracket, thus suppressing vibrations in the thickness direction and stably fixing the conductive bracket to the grounding target area. As a result, the electromagnetic shielding effect in the connector unit is further improved.

[0025] (2) According to the connector unit of (1), at least one of the electromagnetic shielding cover and the conductive bracket may have a recess formed as a stamping mark, the stamping mark being used to fix the electromagnetic shielding member, and the recess opening toward the fixing object side of the electromagnetic shielding cover or the fixing object side of the conductive bracket. If the recess opens toward the inside of the electromagnetic shielding cover in this way, water is less likely to accumulate in the recess, thus improving corrosion resistance.

[0026] (3) According to the connector unit of (2), the recess may also be open in a manner that faces downwards relative to the horizontal direction. Thus, even if water enters the recess, it is easy to drain the water to the outside.

[0027] (4) The connector unit according to any one of (1) to (3) may also include a second connector comprising a plurality of terminals and a resin housing, the plurality of terminals being connected to the other ends of the plurality of wires, and the resin housing holding the plurality of terminals. The housing of the second connector can be easily manufactured from resin, thus reducing costs.

[0028] (5) According to any of (1) to (4), the connector unit may also be such that the electromagnetic shielding member covers only one side of the plurality of wires in a direction perpendicular to the direction in which the plurality of wires are arranged. This reduces the amount of electromagnetic shielding member used.

[0029] (6) According to any one of (1) to (5), the connector unit may also include a conductive bracket comprising a bracket fixing portion extending from the portion where the electromagnetic shielding member is fixed to the grounding object portion, and a reinforcing rib comprising a fixing portion reinforcing rib formed thereon in the bracket fixing portion. This strengthens the bracket fixing portion and suppresses vibration of the conductive bracket in the thickness direction centered on the fixing portion.

[0030] (7) According to any one of (1) to (6), the connector unit may also include a conductive bracket comprising a bracket body fixed to the grounded object portion and a bracket fixing plate fixed to the bracket body, wherein the other end of the electromagnetic shielding member is fixed to the conductive bracket by being clamped by the bracket body and the bracket fixing plate, and one of the bracket body and the bracket fixing plate includes a protective extension extending from the overlapping area between the bracket body and the bracket fixing plate toward the electromagnetic shielding member. In this case, the electromagnetic shielding member can be protected by the protective extension.

[0031] (8) According to the connector unit of (7), the protective extension may also be formed with a width smaller than the width of the overlapping area between the bracket body and the bracket fixing plate. By forming the protective extension with a width smaller than the width of the overlapping area between the bracket body and the bracket fixing plate in a way that matches the area to be protected, lightweighting can be achieved.

[0032] (9) According to the connector unit of (7) or (8), the reinforcing rib may also include an extension reinforcing rib formed on the protective extension. This suppresses vibration of the protective extension in its thickness direction.

[0033] (10) The connector unit according to any one of (7) to (9) may also have a hole formed in the protective extension. As a result, the conductive bracket can be made lighter.

[0034] [Details of the embodiments disclosed herein]

[0035] Specific examples of the connector unit of this disclosure are described below with reference to the accompanying drawings. Furthermore, this disclosure is not limited to these examples, but is intended to include all modifications within the meaning and scope equivalent to the claims, as indicated by the claims themselves.

[0036] [Implementation Method]

[0037] The connector unit involved in the implementation method will now be described. Figure 1 This is a perspective view showing connector unit 10. Figure 2 This is a side view showing connector unit 10. Figure 2 The diagram shows a portion of devices B1, B2, B3, and peripheral devices B4 that are the objects of the installation.

[0038] <Overall structure of connector unit>

[0039] The overall structure of connector unit 10 is described below. Connector unit 10 includes a first connector 20, a second connector 30, multiple wires 40, an electromagnetic shielding component 50, an electromagnetic shielding cover 60, and a conductive bracket 70.

[0040] The first connector 20 is fixed to the first device B1. The second connector 30 is fixed to the second device B2. Devices B1 and B2 are vehicle-mounted devices. For example, the first device B1 is an inverter, and the second device B2 is a drive motor used in an electric vehicle or hybrid vehicle. Multiple wires 40 electrically connect the first connector 20 and the second connector 30. Thus, the first device B1 and the second device B2 are electrically connected. That is, the first connector 20, the second connector 30, and the multiple wires 40 constitute a wiring component that electrically connects the first device B1 and the second device B2. In this embodiment, the first connector 20 and the second connector 30 are high-voltage connectors, and the multiple wires 40 are high-voltage wires.

[0041] Electromagnetic shielding member 50 is a member that covers multiple wires 40 in a manner capable of electromagnetic shielding. Electromagnetic shielding cover 60 is a member fixed to the first connector 20 in a manner covering the first connector 20. Electromagnetic shielding cover 60 is fixed to the first device B1 via the first connector 20. Conductive bracket 70 is a member fixed to a grounding target location and a fixed target location, i.e., device B3, in a state separate from the second connector 30. Device B3 may be the same as or different from device B2. One end of electromagnetic shielding member 50 is fixed to electromagnetic shielding cover 60. The other end of electromagnetic shielding member 50 is fixed to conductive bracket 70. Therefore, electromagnetic shielding member 50 is grounded at the first device B1 via electromagnetic shielding cover 60. In addition, electromagnetic shielding member 50 is grounded at device B3 via conductive bracket 70. Electromagnetic shielding unit is constituted by electromagnetic shielding member 50, electromagnetic shielding cover 60 and conductive bracket 70.

[0042] The structure of each part will be explained in more detail.

[0043] <About Connector 1>

[0044] The first connector 20 has a plurality of first terminals 22 and a first retaining member 24 for retaining the plurality of first terminals 22. Each first terminal 22 is connected to one end of each wire 40.

[0045] The first retaining member 24 includes, for example, a base member 25 and a resin portion 26. The base member 25 is formed, for example, by stamping a metal sheet. An elliptical through hole is formed in the center of the base member 25, and the resin portion 26 is integrally formed around the periphery of the through hole.

[0046] The resin portion 26 is formed by molding a plurality of first terminals 22 as embedded members. The plurality of first terminals 22 are held in a side-by-side state by the resin portion 26. The connection portions of the plurality of first terminals 22 to the wires 40 are provided within the resin portion 26. The resin portion 26 has a portion in the shape of an annular frame along the periphery of the through hole of the base member 25, and an opening 26h is formed therein. The device-side connection end of one of the plurality of first terminals 22 opposite to the wire 40 extends into the opening 26h.

[0047] The base member 25 extends from the outer periphery of the resin portion 26. With the base member 25 in contact with the housing of the first device B1, the base member 25 is fixed to the first device B1 by means of threaded fastening or the like. The housing of the first device B1 is grounded at the vehicle body. Therefore, the base member 25 is grounded via the housing of the first device B1. Thus, with the first connector 20 fixed to the first device B1, the terminal on the first device B1 side is connected to the device-side connection end of the first terminal 22.

[0048] <About the second connector>

[0049] The second connector 30 includes a plurality of second terminals 32, a second retaining member 34 serving as a housing to hold the plurality of second terminals 32, and a terminal plate 36. Each second terminal 32 is connected to the other end of each wire 40.

[0050] The second retaining member 34 is formed, for example, of resin. The second retaining member 34 is formed by molding a plurality of second terminals 32 as embedded parts. The connection portions of the plurality of second terminals 32 to the wire 40 are disposed within the second retaining member 34. The second retaining member 34 has a portion in the shape of an annular frame, within which an opening 34h is formed. The device-side connection end of one of the plurality of second terminals 32, opposite to the wire 40, extends into the opening 34h.

[0051] Terminal plate 36 is formed of resin, for example. Terminal plate 36 is formed in a shape, such as plate, extending from around the second retaining member 34. Terminal plate 36 can be a resin part molded independently of the second retaining member 34, or it can be a structure integrally formed with the second retaining member 34. Terminal plate 36 can also be molded integrally with the second retaining member 34.

[0052] Terminal plate 36 is fixed to the second device B2 by means of threaded locking or the like. In this case, a through hole for threaded locking is formed in terminal plate 36. A cylindrical washer may also be embedded in the through hole. The washer may also be formed of a material, such as metal, with a higher rigidity than the resin forming terminal plate 36.

[0053] Terminal block 36 can also hold multiple relay terminals. One end of each relay terminal can be connected to the device-side connection end of the second terminal, and the other end of each relay terminal can be connected to the terminal on the second device B2 side. In addition, the device-side connection end of the second terminal can also be connected to the terminal of the second device B2 without passing through the relay terminal.

[0054] One end of each of the multiple wires 40 is held in a parallel position via the first connector 20, and the other end of each of the multiple wires 40 is held in a parallel position via the second connector 30. Therefore, the middle portions of the multiple wires 40 along their length are also held in a parallel position between the first connector 20 and the second connector 30. With the first connector 20 fixed to the first device B1 and the second connector 30 fixed to the second device B2, it is easy for the multiple wires 40 to bend in a direction that intersects with their parallel direction.

[0055] <About Electromagnetic Shielding Unit>

[0056] Figure 3 This is a 3D view showing the electromagnetic shielding unit. Figure 4 This is an exploded perspective view of the electromagnetic shielding unit. The electromagnetic shielding unit includes an electromagnetic shielding member 50, an electromagnetic shielding cover 60, and a conductive bracket 70. The electromagnetic shielding member 50 provides electromagnetic shielding for multiple wires 40, and the electromagnetic shielding cover 60 provides electromagnetic shielding for the first connector 20. The electromagnetic shielding member 50 is grounded via the electromagnetic shielding cover 60 and the conductive bracket 70.

[0057] <About Electromagnetic Shielding Components>

[0058] The electromagnetic shielding member 50 is constructed in the form of a conductive sheet. The electromagnetic shielding member 50 possesses flexibility, allowing it to be bent in the thickness direction. For example, the electromagnetic shielding member 50 may also be a braided fabric formed by weaving multiple wires made of conductors into a sheet shape. Copper, copper alloys, aluminum, and aluminum alloys may also be used as the forming material for the wires. In this embodiment, the electromagnetic shielding member 50 is formed as a rectangular sheet that is longer in one direction.

[0059] The electromagnetic shielding member 50 covers only one side of the multiple wires 40 in a direction perpendicular to the direction in which the multiple wires 40 are arranged. Therefore, the side of the multiple wires 40 on which the electromagnetic shielding member 50 is provided is not covered by the electromagnetic shielding member.

[0060] In this embodiment, with the first connector 20 fixed to the first device B1 and the second connector 30 fixed to the second device B2, the middle portion of the plurality of wires 40 is substantially bent at 90°. The portion of the electromagnetic shielding member 50 near the first connector 20 of the plurality of wires 40 covers only one side of the plurality of wires 40 in a direction perpendicular to both the width direction in which the plurality of wires 40 are arranged and the direction in which the plurality of wires 40 extend.

[0061] For example, in the case of a device B4 that requires electromagnetic noise countermeasures when multiple wires 40 are arranged on one side in a direction perpendicular to the direction in which the multiple wires 40 are arranged, the electromagnetic shielding member 50 described above can provide electromagnetic shielding between the multiple wires 40 and the device B4.

[0062] <About Electromagnetic Shielding>

[0063] Figure 5 This is a diagram showing the fixing points of the electromagnetic shielding component 50 and the electromagnetic shielding cover 60, viewed from the side of device B1. Figures 3 to 5 As shown, the electromagnetic shielding cover 60 includes a cover body 62 and a cover fixing plate 68. The cover body 62 is the portion that covers the first connector 20. The cover fixing plate 68 is the portion that is fixed to the cover body 62 in a state of overlapping with the cover body 62. The cover body 62 and the cover fixing plate 68 are formed, for example, by stamping a metal sheet.

[0064] The cover body 62 is fixed to the first connector 20 in a state of covering the first connector 20. For example, the cover body 62 has a covering portion 62a that covers the first retaining member 24 and a fixing piece 62b extending outward from the covering portion 62a. The covering portion 62a is formed in a shape where the peripheral wall portion protrudes from the three sides of the elongated top plate portion in a manner that intersects with the top plate portion. The covering portion 62a covers the outward-facing portion of the opening 26h in the first retaining member 24 (the portion opposite to the first device B1) and the three-directional portions of the first retaining member 24 excluding the side where the wire 40 extends. A pair of fixing pieces 62b extend from both sides of the covering portion 62a. With the fixing pieces 62b overlapping the base member 25, the fixing pieces 62b are fixed to the base member 25 by means of threaded locking or the like. Thus, the electromagnetic shielding cover 60 is fixed in a state of contact with the first connector 20. In addition, as described above, the first connector 20 is fixed to the first device B1, so the electromagnetic shield 60 is fixed to the first device B1 in an integrated state with the first connector 20.

[0065] A plate-shaped fixing portion 63 is formed along the edge of one side extending from the wire 40 in the aforementioned covering portion 62a. The cover fixing plate 68 is formed as a rectangular plate that is longer in one direction. The cover fixing plate 68 overlaps the aforementioned fixing portion 63. One end of the electromagnetic shielding member 50 is fixed to the electromagnetic shielding cover 60 by being clamped by the fixing portion 63 of the cover body 62 and the cover fixing plate 68. In this embodiment, the cover fixing plate 68 overlaps the cover body 62 on the side that houses the first connector 20 (also the side of the first device B1). The cover fixing plate 68 may also overlap the cover body 62 on the outer side opposite to the first connector 20.

[0066] This section describes a structural example for fixing the cover fixing plate 68 in a state of overlapping with the cover body 62. For example, the cover fixing plate 68 is fixed to the cover body 62 by stamping with the cover fixing plate 68 overlapping with the cover body 62.

[0067] More specifically, with one end of the electromagnetic shielding member 50 clamped between the fixing part 63 and the fixing plate 68 in the cover body 62, the fixing plate 68 and the cover body 62 are stamped. At this time, a member with a partially protruding portion is used as one stamping die, and a member with a recessed portion formed at a position opposite to the protrusion is used as the other stamping die. By stamping the cover body 62 and the fixing plate 68 with a pair of stamping dies, the protrusion formed on one of the cover body 62 and the fixing plate 68 is embedded into the recessed portion of the other, thus fixing the cover body 62 and the fixing plate 68 in an overlapping state.

[0068] For example, the protrusion of one side of the stamping die is pushed onto the cover fixing plate 68, and the concave part of the stamping die on the other side is positioned on the outer facing surface of the cover body 62 for stamping. As a result, a portion of the cover fixing plate 68 deforms by being pressed against the cover body 62. The stamping mark on the cover fixing plate 68 forms a concave shape when viewed from the side opposite to the cover body 62 and a protruding shape when viewed from the side opposite to the cover body 62. Similarly, the stamping mark on the cover body 62 forms a concave shape when viewed from the side of the cover fixing plate 68 and a protruding shape when viewed from the side opposite to the cover fixing plate 68. Between the cover fixing plate 68 and the cover body 62, the stamping mark (protrusion) of the cover fixing plate 68 is embedded into the stamping mark (concave) on the side of the cover body 62, thereby fixing the cover fixing plate 68 in a state overlapping the fixing part 63 of the cover body 62. This fitting structure is established with one end of the electromagnetic shielding member 50 positioned between the cover body 62 and the cover fixing plate 68.

[0069] The orientation of the aforementioned protrusions and recesses is not particularly limited, but the recess 69, viewed from the outside, preferably opens towards the object to which the electromagnetic shielding cover 60 is fixed, i.e., the first device B1. In this embodiment, the cover fixing plate 68 is located on the first device B1 side relative to the cover body 62, so it is preferable to form the recess 69 on the side of the cover fixing plate 68. In this embodiment, the aforementioned stamping marks are formed at multiple locations with spacing along the length direction of the cover fixing plate 68, but the number of these stamping locations is arbitrary.

[0070] The aforementioned stamping mark, i.e., the recess 69, preferably opens downwards in a manner that is perpendicular to the direction of gravity, in a horizontal direction. The edge of the long side extending from the electromagnetic shielding member 50 in the cover fixing plate 68 may also be curved on one side and bent on the other side opposite to the electromagnetic shielding member 50. Therefore, the edge of the cover fixing plate 68 is less likely to come into contact with the electromagnetic shielding member 50 in areas with small linear features.

[0071] To position the cover fixing plate 68 and one end of the electromagnetic shielding member 50 relative to the cover body 62 with high positional accuracy, the following structure can also be adopted.

[0072] That is, a first positioning hole 63h is formed around the periphery of the fixing portion 63 in the cover body 62. The first positioning hole 63h is, for example, generally rectangular when viewed from the thickness direction of the fixing portion 63. For example, a plurality of first positioning holes 63h are provided along the boundary of the cover fixing plate 68. For example, a plurality of first positioning holes 63h are formed at intervals along one long side of the cover fixing plate 68 that overlaps the fixing portion 63 (the long side opposite to the side where the electromagnetic shielding member 50 extends). In addition, the first positioning holes 63h are formed at positions along the two short sides of the cover fixing plate 68 that overlaps the fixing portion 63.

[0073] A first positioning recess 68h is formed on the outer periphery of the cover fixing plate 68. The first positioning recess 68h, viewed from the thickness direction of the cover fixing plate 68, is, for example, a generally rectangular recessed shape. Multiple first positioning recesses 68h are provided on the outer periphery of the cover fixing plate 68. For example, multiple first positioning recesses 68h are formed at intervals on the edge of one long side of the cover fixing plate 68. Additionally, first positioning recesses 68h are also formed on the edges of the short sides of both sides of the cover fixing plate 68.

[0074] Each of the first positioning recesses 68h corresponds to a plurality of first positioning holes 63h. When the cover fixing plate 68 is fixed to the fixing part 63, each of the first positioning recesses 68h and each of the first positioning holes 63h are formed in an area that overlaps with each other at least partially when viewed along the thickness direction of the fixing part 63 and the cover fixing plate 68.

[0075] Furthermore, the first positioning recess 68h formed on the edge of the long side of the cover fixing plate 68 is formed in a manner that is more recessed into the inner side of the cover fixing plate 68 than the first positioning hole 63h. With the cover fixing plate 68 overlapping the fixing part 63, the first positioning hole 63h can be positioned in the area of ​​the first positioning recess 68h near the opening, and the end edge of one end of the electromagnetic shielding member 50 is located in the area of ​​the first positioning recess 68h near the inner side.

[0076] When fixing the cover fixing plate 68 to the fixing part 63 of the cover body 62 by stamping or other processes, the positioning is performed as follows.

[0077] First, when the fixing part 63 of the cover body 62 is placed, for example, in a stamping die, a plurality of first positioning pins P1 protruding from the stamping die are respectively inserted into a plurality of first positioning holes 63h of the fixing part 63.

[0078] Next, one end of the electromagnetic shielding member 50 is placed on the fixing part 63 of the cover body 62. At this time, the edge of the electromagnetic shielding member 50 can be abutted against the first positioning pin P1 along one of the long sides of the cover fixing plate 68 and positioned.

[0079] Next, the cover fixing plate 68 is overlapped on the electromagnetic shielding member 50 placed on the fixing part 63. At this time, a plurality of first positioning pins P1 are inserted into the first positioning recess 68h of the cover fixing plate 68. As a result, the cover fixing plate 68 is positioned relative to the cover body 62 in the direction of the expansion of the surfaces of the fixing part 63 and the cover fixing plate 68.

[0080] Furthermore, there is a gap between the first positioning pin P1 and the inner portion of the first positioning recess 68h along one of the long sides of the cover fixing plate 68. By observing through this gap whether the end edge of the electromagnetic shielding member 50 is present, it can be confirmed whether the electromagnetic shielding member 50 is positioned in the designated location that contacts the first positioning pin P1.

[0081] By performing the above-described stamping process in this state, one end of the electromagnetic shielding member 50 is clamped between the cover body 62 and the cover fixing plate 68, thereby fixing one end of the electromagnetic shielding member 50 to the electromagnetic shielding cover 60.

[0082] <About conductive brackets>

[0083] Figure 6 This is a diagram of the fixed parts of the conductive bracket 70 and the electromagnetic shield 60, viewed from the side of device B3, an example of the grounded object location. Figure 7 This is a view of the fixed part from the side opposite to device B3.

[0084] The conductive bracket 70 is a component fixed to the other end of the electromagnetic shielding member 50. Reinforcing ribs 75 and 77 protrude in the thickness direction of the conductive bracket 70. These reinforcing ribs 75 and 77 suppress deformation in the thickness direction of the conductive bracket 70, for example, reducing vibration centered on the fixed portion of the conductive bracket 70.

[0085] In this embodiment, the conductive bracket 70 includes a bracket body 72 and a bracket fixing plate 78. The bracket body 72 and the bracket fixing plate 78 are components formed by stamping or other processes on metal plates.

[0086] The bracket body 72 is the part fixed to the device B3. The bracket fixing plate 78 is fixed to the bracket body 72 in a state of overlapping the bracket body 72. Then, the other end of the electromagnetic shielding member 50 is fixed to the conductive bracket 70 by clamping the other end of the electromagnetic shielding member 50 between the bracket body 72 and the bracket fixing plate 78.

[0087] More specifically, the bracket body 72 includes a fixing part 73 that overlaps with the bracket fixing plate 78. The fixing part 73 is formed into a rectangular shape that is longer in one direction. The bracket fixing plate 78 is also formed into a rectangular shape that is longer in one direction. The bracket fixing plate 78 may also be the same shape as the cover fixing plate 68 described above.

[0088] The structure for fixing the bracket fixing plate 78 in a state of overlapping the bracket body 72 can also be the same as the structure for fixing the cover fixing plate 68 to the cover body 62.

[0089] That is, with the other end of the electromagnetic shielding member 50 sandwiched between the fixing part 73 in the bracket body 72 and the bracket fixing plate 78, the bracket fixing plate 78 and the bracket body 72 are stamped. At this time, a member with a partial protrusion is used as one stamping die, and a member with a concave part formed at the position opposite to the protrusion is used as the other stamping die. By stamping the bracket body 72 and the bracket fixing plate 78 with a pair of stamping dies, the protrusion formed on one of the bracket body 72 and the bracket fixing plate 78 is embedded into the concave part of the other, fixing the bracket body 72 and the bracket fixing plate 78 in an overlapping state.

[0090] The orientation of the recess 79, formed as a stamping mark, is not particularly limited when viewed from the outside, but it is preferable to open towards the device B3 side, which is the object to which the conductive bracket 70 is fixed. In this embodiment, the bracket fixing plate 78 is located on the device B3 side relative to the bracket body 72, so it is preferable to form the recess 79 on the bracket fixing plate 78 side. In this embodiment, the aforementioned stamping marks are formed at multiple locations with spacing along the length direction of the bracket fixing plate 78, but the number of these stamping locations is arbitrary.

[0091] The aforementioned stamping mark, i.e., the recess 79, preferably opens downwards in a manner that is perpendicular to the direction of gravity in the horizontal direction.

[0092] In addition, the conductive bracket 70 includes a bracket fixing part 74 and a protective extension part 76.

[0093] The bracket fixing part 74 extends from the fixing part 73 where the electromagnetic shielding member 50 is fixed toward the grounding object part, i.e., device B3. The bracket fixing part 74 extends from the fixing part 73 in a direction different from the direction in which the electromagnetic shielding member 50 extends; in this embodiment, it extends to the side opposite to the direction in which the electromagnetic shielding member 50 extends.

[0094] The bracket fixing portion 74 extends from a portion of the long side of the fixing portion 73 opposite to the side extending from the electromagnetic shielding member 50. Therefore, the bracket fixing portion 74 includes a portion formed in the longitudinal direction (width direction of the electromagnetic shielding member 50) of the fixing portion 73 with a dimension smaller than that of the fixing portion 73. For example, the bracket fixing portion 74 extends outward from the middle of the long side of one of the fixing portions 73. The shape of the bracket fixing portion 74 is not particularly limited; for example, it can be formed in a trapezoidal shape, a triangular shape, a square shape, or a strip with a rounded front end. This embodiment shows an example where the bracket fixing portion 74 is formed in a trapezoidal shape.

[0095] For example, a threaded locking hole 74h is formed in the bracket fixing part 74. By inserting a threaded member through the hole 74h and threading it into the threaded hole provided in the device B3, the bracket fixing part 74 is fixed to the device B3.

[0096] The bracket fixing portion 74 extends outward from a localized location relative to the fixing portion 73. Therefore, the bracket fixing portion 74 is more prone to deformation in the thickness direction compared to the fixing portion 73. In this embodiment, the reinforcing ribs 75 and 77 include a fixing portion reinforcing rib 75 formed in the bracket fixing portion 74.

[0097] Here, a reinforcing rib 75 for the fixing part is formed by bending the edges corresponding to the pair of inclined sides of the bracket fixing part 74 toward the side opposite to the side connected to the device B3. Alternatively, the reinforcing rib 75 for the fixing part may be formed only on one of the pair of inclined sides of the bracket fixing part 74. Thus, instead of forming a reinforcing rib for the fixing part at the edge of the bracket fixing part 74, or otherwise, a reinforcing rib for the fixing part may be formed on the inner side relative to the edge of the bracket fixing part 74. Such a reinforcing rib for the fixing part can be formed, for example, by stamping a slender region in the bracket fixing part 74 that is convex when viewed from one side and concave when viewed from the other side.

[0098] Vibration at the conductive bracket 70 may occur due to the center of gravity near the fixing part 73 swaying around the fixing part of the bracket fixing part 74 to the device B3. Therefore, the fixing part of the bracket fixing part 74 with a reinforcing rib 75 preferably exists in at least a portion of the range from the fixing part of the bracket fixing part 74 (i.e., the part where the hole 74h is formed) to the fixing part 73 when viewed along the long side direction of the fixing part 73, and preferably exists in the entire range.

[0099] The protective extension 76 extends from the overlapping area between the bracket body 72 and the bracket fixing plate 78 toward the electromagnetic shielding member 50. In this embodiment, the protective extension 76 extends from the bracket body 72. This is because there is a peripheral device B4 on the bracket body 72 side relative to the bracket fixing plate 78 that may come into contact with the electromagnetic shielding member 50. Unlike this example, when there is a peripheral device on the bracket fixing plate 78 side relative to the bracket body 72 that may come into contact with the electromagnetic shielding member 50, the protective extension may also extend from the bracket fixing plate 78. For example, this is consistent with the case where the bracket fixing plate 78 overlaps on the side of the bracket body 72 opposite to the device B3.

[0100] The protective extension 76 is set to be smaller than the width of the overlapping area between the bracket body 72 and the bracket fixing plate 78 (the dimension in the length direction of the fixing part 73 or the bracket fixing plate 78).

[0101] More specifically, the protective extension 76 extends a portion of the long side of the side extending from the electromagnetic shielding member 50 in the fixing part 73, covering the electromagnetic shielding member 50. The shape of the protective extension 76 is arbitrary and can be trapezoidal, square, triangular, etc. The area and shape of the protective extension 76 are preferably matched to the position of the peripheral device B4 relative to the electromagnetic shielding member 50, and are located in an area between the peripheral device B4 and the electromagnetic shielding member 50 that avoids contact between the two. In this embodiment, for example, it is envisioned that the peripheral device B4 is positioned near one end of the other end of the electromagnetic shielding member 50, and the protective extension 76 extends a portion near one end of the long side of the side extending from the electromagnetic shielding member 50 in the fixing part 73. In addition, the edge of the front end side of the protective extension 76 is connected to the remaining portion of the long side of the fixing part 73 via a bevel. This bevel is connected at an obtuse angle to the edge of the front end side of the protective extension 76 and the remaining portion of the long side of the fixing part 73.

[0102] The reinforcing ribs 75 and 77 include an extension reinforcing rib 77 formed in the protective extension 76. Here, the extension reinforcing rib 77 is formed by bending the edge of the front end side of the protective extension 76 and the edge of the fixing portion 73, which corresponds to the aforementioned inclined edge, inward along the longitudinal direction towards the side opposite to the electromagnetic shielding member 50. Alternatively, the extension reinforcing rib may be formed on the edge of the fixing portion 73 in the protective extension 76 outward along the longitudinal direction. Furthermore, instead of the fixing reinforcing rib formed on the edge of the protective extension 76, or alternatively, the extension reinforcing rib may be formed on the inner side relative to the edge of the protective extension 76. Such an extension reinforcing rib can be formed, for example, by stamping a slender region in the protective extension 76 that is convex when viewed from one side and concave when viewed from the other side.

[0103] The edge of the electromagnetic shielding member 50 extending from the fixing part 73 is also bent in the opposite direction to the electromagnetic shielding member 50, similar to the reinforcing rib 77 of the extension part, and is formed in the additional rib 73P. The reinforcing rib 77 of the extension part is connected to the additional rib 73P. By bending the reinforcing rib 77 of the extension part and the additional rib 73P in a curved manner, the bracket body 72 can contact the electromagnetic shielding member 50 with a curved surface.

[0104] The reinforcing ribs 77 of the protective extension 76 are preferably present in part or entirely in the range from the fixing part 74 to the front end of the protective extension 76. This suppresses vibration of the protective extension 76 in the thickness direction.

[0105] Alternatively, a hole 76h may be formed in the protective extension 76. Figure 7 In the diagram, an elliptical hole 76h is represented by an imaginary line. The hole 76h can also be designed in various shapes, taking into account the position, shape, and positional relationship of the device B4 relative to the electromagnetic shielding member 50, while avoiding contact between the device B4 and the electromagnetic shielding member 50. The size of the hole 76h can also be set within a range where the flexible electromagnetic shielding member 50 is unlikely to protrude from the hole 76h. The shape of the hole is not mandatory, and the number of holes is arbitrary. For example, multiple circular holes can be formed in the protective extension 76 with gaps and arranged in a longitudinal and transverse pattern. This allows for a lighter protective extension 76.

[0106] Furthermore, forming the protective extension 76 is not necessary. Also, if the protective extension 76 is formed, forming the reinforcing rib 77 for the extension is not necessary.

[0107] In order to position the other end of the bracket fixing plate 78 and the electromagnetic shielding member 50 relative to the bracket body 72 with high positional accuracy, a second positioning hole 73h and a second positioning recess 78h may be formed in the same manner as the electromagnetic shielding cover 60 described above.

[0108] That is, a second positioning hole 73h is formed around the periphery of the fixing portion 73 in the bracket body 72. The second positioning hole 73h corresponds to the first positioning hole 63h mentioned above. For example, multiple second positioning holes 73h are provided along the boundary of the fixing plate 78 for mounting the bracket. For example, multiple second positioning holes 73h are formed at intervals along the long side of one of the bracket fixing plates 78 that overlaps the fixing portion 73 (the long side opposite to the side where the electromagnetic shielding member 50 extends). In addition, the second positioning holes 73h are also formed on the edges of the short sides of both sides of the fixing portion 73. Furthermore, the second positioning holes 73h formed on the edges of the short sides of both sides of the fixing portion 73 are formed in a shape that penetrates in the thickness direction of the fixing portion 73, but is not surrounded by it, and opens outward from the short side of the fixing portion 73.

[0109] A second positioning recess 78h is formed on the outer periphery of the bracket fixing plate 78. The second positioning recess 78h may also be configured such that the bracket fixing plate 78 and the cover fixing plate 68 have the same shape and are formed in the same position and shape as the first positioning recess 68h.

[0110] The correspondence between the multiple second positioning recesses 78h and the multiple second positioning holes 73h is the same as the correspondence between the multiple first positioning holes 63h and the multiple first positioning recesses 68h.

[0111] When the bracket fixing plate 78 is fixed to the fixing part 73 of the bracket body 72 by stamping or the like, in the same manner as described above, a plurality of second positioning pins P2 are inserted into a plurality of second positioning holes 73h and a plurality of second positioning recesses 78h. This positions the bracket fixing plate 78 relative to the bracket body 72, and further positions the other end of the electromagnetic shielding member 50.

[0112] <Effects, etc.>

[0113] The connector unit 10, configured in this way, is fixed by clamping one end of the electromagnetic shielding member 50 between the cover body 62 and the cover fixing plate 68. Therefore, even without an opening at the electromagnetic shielding cover 60, the electromagnetic shielding member 50 can be fixed to the electromagnetic shielding cover 60. This increases the area covered by the electromagnetic shielding cover 60 over the first connector 20, improving the electromagnetic shielding effect achieved by the electromagnetic shielding cover 60. Furthermore, the conductive bracket 70 is fixed to the grounding object, i.e., device B3, in a state separated from the second connector 30 and grounded. At this time, reinforcing ribs 75 and 77 are formed on the conductive bracket 70, thus suppressing vibration in the thickness direction of the conductive bracket 70 and fixing the conductive bracket 70 in a stable contact with device B3. This ensures stable grounding of the electromagnetic shielding member 50, further improving the electromagnetic shielding effect achieved by the electromagnetic shielding member 50. As a result, the electromagnetic shielding effect in the connector unit 10 is improved.

[0114] Furthermore, the stamping mark, i.e., the recess 69, opens towards the first device B1 side relative to the electromagnetic shield 60. Therefore, by positioning the recess 69 within the space surrounded by the electromagnetic shield 60 and the first device B1, water is less likely to accumulate in the recess 69, thus improving corrosion resistance.

[0115] Furthermore, the stamping mark, i.e., the recess 79, opens towards the device B3 side relative to the conductive bracket 70. Therefore, by positioning the recess 79 within the space surrounded by the conductive bracket 70 and the device B3, water is less likely to accumulate in the recess 79, thus improving corrosion resistance.

[0116] As long as the aforementioned recesses 69 and 79 face downwards relative to the horizontal direction, even if water enters the recesses 69 and 79, it can easily be drained to the outside by gravity. Thus, the corrosion resistance is further improved.

[0117] Furthermore, the second connector 30 includes a plurality of second terminals 32 and a second retaining member 34, which is a resin housing, holding the plurality of second terminals 32. That is, the conductive bracket 70 at the other end of the electromagnetic shielding member 50 is fixed to the device B3 in a detached state from the second connector 30. Therefore, it can be made into a combined structure of the base member 25 and the resin part 26, similar to the first connector 20, without employing a structure that grounds via the base member 25. Thus, multiple parts of the second connector 30 can be made as resin molded products, enabling cost reduction of the second connector 30.

[0118] Furthermore, since the electromagnetic shielding member 50 covers only one side of the multiple wires 40, the amount of electromagnetic shielding member 50 used can be reduced compared to covering the entire perimeter of the multiple wires 40. This allows for lightweighting and cost reduction. Moreover, in this case, the electromagnetic shielding member 50 can be configured to be placed only on the side where noise mitigation measures for the multiple wires 40 are required (e.g., the side where device B4 is located), based on the relationship between the multiple wires 40 and other equipment B4.

[0119] In addition, a reinforcing rib 75 for fixing is formed at the bracket fixing part 74, so as to suppress the vibration of the conductive bracket 70 in the thickness direction centered on the fixing part of the bracket fixing part 74 to the device B3.

[0120] In particular, it is possible to achieve lightweighting by making the bracket fixing part 74 and fixing part 73 narrow, while the fixing part takes vibration countermeasures by using the reinforcing rib 75.

[0121] In addition, the electromagnetic shielding component 50 can be protected from the influence of equipment B4 by the protective extension 76.

[0122] Furthermore, by making the protective extension 76 narrower than the overlapping area between the bracket body 72 and the bracket fixing plate 78, a lightweight design can be achieved while protecting the electromagnetic shielding member 50 in critical areas. Because the protective extension 76 is made lightweight, the portion of the conductive bracket 70 that separates from the fixing point can also be made lightweight, further suppressing vibration of the conductive bracket 70.

[0123] In addition, by forming a reinforcing rib 77 for the extension at the protective extension 76, vibration of the protective extension 76 in its thickness direction is suppressed.

[0124] Furthermore, by forming a hole 76h at the protective extension 76, it is possible to achieve weight reduction while extending the protective extension 76 to the area requiring protection. In addition, the weight reduction of the protective extension 76 further suppresses the vibration of the conductive bracket 70.

[0125] Furthermore, the structures described in the above embodiments and variations can be appropriately combined as long as they do not contradict each other.

[0126] Label Explanation

[0127] 10 Connector Units

[0128] 20 Connector No. 1

[0129] 22 Terminal 1

[0130] 24 First retaining member

[0131] 25. Base components

[0132] 26 Resin Section

[0133] 26h opening

[0134] 30 Second Connector

[0135] 32 Terminal 2

[0136] 34 Second retaining member

[0137] 34h opening

[0138] 36 terminal block

[0139] 40 wires

[0140] 50 Electromagnetic shielding components

[0141] 60 Electromagnetic shielding cover

[0142] 62 main body of the cover

[0143] 62a Coverage

[0144] 62b fixing plate

[0145] 63 Fixing part

[0146] 63h First positioning hole

[0147] 68 Cover fixing plate

[0148] 68h 1st positioning recess

[0149] 69 recess

[0150] 70 Conductive bracket

[0151] 72 Bracket Main Body

[0152] 73 Fixing part

[0153] 73P Additional Ribs

[0154] 73h Second positioning hole

[0155] 74 Bracket fixing part

[0156] 74h Hole

[0157] 75. Reinforcing ribs (for fixing parts)

[0158] 76 Protective extension

[0159] 76h Hole

[0160] 77. Reinforcing ribs (for extensions)

[0161] 78 Bracket fixing plate

[0162] 78h 2nd positioning recess

[0163] 79 recess

[0164] B1 Equipment 1

[0165] B2 Equipment 2

[0166] B3 Equipment (Grounding Object Equipment)

[0167] B4 Equipment (Peripheral Equipment)

[0168] P1 First positioning pin

[0169] P2 Second positioning pin

Claims

1. A connector unit comprising: First connector; Second connector; Multiple wires electrically connect the first connector and the second connector; An electromagnetic shielding component covers the multiple wires in a manner that enables electromagnetic shielding. An electromagnetic shielding cover is fixed to the first connector in a manner that covers the first connector; as well as A conductive bracket is fixed to the grounding target area in a state detached from the second connector. The electromagnetic shielding cover includes a cover body and a cover fixing plate, wherein the cover fixing plate is fixed to the cover body. One end of the electromagnetic shielding member is fixed to the electromagnetic shielding cover by being clamped between the cover body and the cover fixing plate. At the other end of the electromagnetic shielding component, the conductive bracket is fixed. The conductive bracket includes reinforcing ribs that protrude in the thickness direction of the conductive bracket. The conductive bracket includes a bracket body fixed to the grounded object and a bracket fixing plate fixed to the bracket body. The other end of the electromagnetic shielding component is fixed to the conductive bracket by being clamped between the bracket body and the bracket fixing plate. One of the bracket body and the bracket fixing plate includes a protective extension that extends from the overlapping area between the bracket body and the bracket fixing plate toward the electromagnetic shielding member.

2. The connector unit according to claim 1, wherein, At least one of the electromagnetic shielding cover and the conductive bracket has a recess formed as a stamping mark, the stamping mark being used to fix the electromagnetic shielding component. The recess opens toward the fixed object side of the electromagnetic shield or the fixed object side of the conductive bracket.

3. The connector unit according to claim 2, wherein, The recess opens downwards relative to the horizontal direction.

4. The connector unit according to any one of claims 1 to 3, wherein, The second connector includes a plurality of terminals and a resin housing, the plurality of terminals being connected to the other end of the plurality of wires, and the resin housing holding the plurality of terminals.

5. The connector unit according to any one of claims 1 to 3, wherein, The electromagnetic shielding component covers only one side of the multiple wires in a direction perpendicular to the direction in which the multiple wires are arranged.

6. The connector unit according to any one of claims 1 to 3, wherein, The conductive bracket includes a bracket fixing portion that extends from the portion where the electromagnetic shielding member is fixed toward the grounded object portion. The reinforcing rib includes a fixing rib, which is formed on the bracket fixing portion.

7. The connector unit according to any one of claims 1 to 3, wherein, The protective extension is formed with a width smaller than the width of the overlapping area between the bracket body and the bracket fixing plate.

8. The connector unit according to any one of claims 1 to 3, wherein, The reinforcing rib includes an extension reinforcing rib formed on the protective extension.

9. The connector unit according to any one of claims 1 to 3, wherein, A hole is formed in the protective extension.

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