Shield member pair
The shield member pair addresses the challenge of maintaining high shielding performance and simplicity by incorporating a movable, elastically supported first member and overlapping shield portions, enhancing protection and reducing complexity.
Patent Information
- Application Number
- PCT/JP2025/001790
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-01-26
- Filing Date
- 2025-01-21
- Publication Date
- 2025-07-31
AI Technical Summary
Existing shield member pairs face challenges in maintaining high shielding performance while having a simple structure, particularly due to vertical gaps that can reduce effectiveness and the need for complex fixation mechanisms.
A shield member pair design featuring a first shield member with a movable portion and elastic support, allowing displacement to accommodate misalignment, and a second shield member with overlapping shield portions to eliminate gaps, along with a simplified structure by avoiding direct fixation to the shield object.
The design enhances shielding performance by eliminating gaps and simplifying the structure, ensuring effective protection without complex fixation, while using thinner materials for flexibility and cost-effectiveness.
Smart Images

Figure JP2025001790_31072025_PF_FP_ABST
Abstract
Description
Shielding member pair
[0001] The present disclosure relates to a shield member pair.
[0002] Patent Document 1 discloses a shielding member.
[0003] Japanese Patent Application Laid-Open No. 2021-096933
[0004] An object of the present disclosure is to provide a pair of shielding members that has high shielding performance and a simple structure.
[0005] The pair of shielding members according to a first aspect is a pair of shielding members for shielding an object to be shielded, the pair of shielding members comprising a first shielding member attached to a first attachment object and a second shielding member attached to a second attachment object, the first shielding member and the second shielding member facing each other in the vertical direction, the first shielding member having a first component part, the second shielding member having a second component part, the first component part having a first shielding part that shields the object to be shielded from a direction perpendicular to the vertical direction, the second component part having a second shielding part that shields the object to be shielded from a direction perpendicular to the vertical direction, at least a portion of the second shielding part being able to overlap with the first shielding part in the vertical direction, and at least one of the first component part and the second component part not having a part that is fixed to the object to be shielded.
[0006] In this aspect, the shielding member pair includes a first shielding member attached to a first attachment object and a second shielding member attached to a second attachment object. The first shielding member and the second shielding member face each other in the vertical direction. The first shielding member has a first component, and the second shielding member has a second component. The first component has a first shielding portion that shields the object to be shielded from a direction perpendicular to the vertical direction. The second component has a second shielding portion that shields the object to be shielded from a direction perpendicular to the vertical direction. Therefore, the first shielding portion and the second shielding portion can shield the object to be shielded from a direction perpendicular to the vertical direction.
[0007] In this embodiment, at least a portion of the second shielding portion can overlap with the first shielding portion in the vertical direction, thereby eliminating or reducing the vertical gap between the first and second shielding members, thereby preventing a decrease in shielding performance.
[0008] In this aspect, at least one of the first component and the second component does not have a portion that is fixed to the object to be shielded. Therefore, it is not necessary to provide at least one of the first component and the second component with a structure for fixing to the object to be shielded. As a result, the structure of the shielding member pair can be simplified.
[0009] The "vertical direction" refers to a direction relative to the shield member. Therefore, it does not limit the orientation of the shield member when in use. For example, the downward direction of the shield member may or may not face the direction of gravity. In the embodiment described below, the first shield member and the second shield member are configured to contact each other. However, this aspect is not limited to this. In the embodiment described below, the first shield member and the second shield member are electrically connected to each other. However, this aspect is not limited to this. For example, the first shield member and the second shield member may contact each other but not be electrically connected. In the embodiment described below, the first shield member has a fixed portion and a movable portion, and the second shield member has a fixed portion but no movable portion. The first component portion is the movable portion of the first shield member, and the second component portion is the fixed portion of the second shield member. However, this aspect is not limited to this. For example, the first shield member may have a fixed portion but no movable portion, and the fixed portion of the first shield member may be the first component portion. In the embodiment described below, the first shielding portion has a wall portion whose thickness direction is perpendicular to the up-down direction, but this aspect is not limited to this. The same applies to the second shielding portion. In the embodiment described below, the first shielding member is electrically connected to the first attachment object, but this aspect is not limited to this. The same applies to the second shielding member.
[0010] In the second aspect, the pair of shielding members is the first aspect, wherein the first shielding member has a fixed portion fixed to the first attachment object and a movable portion as the first component that is displaceable relative to the fixed portion, and the movable portion is displaceable in a direction perpendicular to the up-down direction relative to the fixed portion.
[0011] In this aspect, the first shield member has a fixed portion fixed to the first attachment object and a movable portion as a first component portion that is displaceable relative to the fixed portion. The movable portion is displaceable in a direction perpendicular to the up-down direction relative to the fixed portion. Therefore, the first component portion is displaceable in a direction perpendicular to the up-down direction relative to the first attachment object. As a result, it is possible to accommodate positional misalignment (positional misalignment in a direction perpendicular to the up-down direction) between the first shield member and the second shield member.
[0012] In the embodiment described below, the movable part is displaceable relative to the fixed part in both the up-down direction and the two directions perpendicular to the up-down direction, and is also displaceable so as to rotate slightly around an axis such as an axis in the up-down direction or an axis perpendicular to the up-down direction. However, this aspect is not limited to this. For example, the movable part of this aspect may be displaceable relative to the fixed part only in the direction perpendicular to the up-down direction.
[0013] A third aspect of the shielding member pair is the second aspect, wherein the first shielding member has an elastic support portion that supports the movable portion so that it can be displaced, and the elastic support portion has a spring piece that connects the fixed portion and the movable portion.
[0014] In this aspect, the first shield member has an elastic support portion that supports the movable portion so that the movable portion can be displaced. The elastic support portion has a spring piece that connects the fixed portion and the movable portion. Therefore, the movable portion (first component) can be elastically displaced.
[0015] A fourth aspect of the present invention provides the pair of shielding members according to claim 3, wherein in the third aspect, the plate material constituting the first shielding member is thinner than the plate material constituting the second shielding member.
[0016] In this aspect, the plate material constituting the first shielding member is thinner than the plate material constituting the second shielding member, so that the spring pieces can be made of thin plate material, ensuring flexibility of the elastic support portion.
[0017] In the embodiment described below, the second shielding member does not have a portion that is fixed to the object to be shielded (for this reason, the second shielding member needs to ensure rigidity through its own structure. For this reason, it is preferable that the plate material that constitutes the second shielding member is thick). However, this aspect is not limited to this.
[0018] The shielding member pair according to the fifth aspect is any one of the second to fourth aspects, in which the first shielding member has an elastic support portion that supports the movable portion so that it can be displaced, the elastic support portion has a spring piece that connects the fixed portion and the movable portion, and the second component portion has an elastic contact portion that elastically contacts the first component portion.
[0019] However, if the first component includes a resilient contact portion for electrically connecting the first shielding member and the second shielding member by resilient contact, the structure of the first shielding member having the resilient support portion becomes more complex. Therefore, in this aspect, the second component includes a resilient contact portion that resiliently contacts the first component, thereby preventing the structure of the first shielding member from becoming more complex.
[0020] The shielding member pair according to the sixth aspect is any one of the second to fourth aspects, in which the first shielding member has an elastic support portion that supports the movable portion so that it can be displaced, the elastic support portion has a spring piece that connects the fixed portion and the movable portion, and the movable portion has an elastic contact portion that elastically contacts the second component portion.
[0021] In this aspect, the movable portion has a resilient contact portion that resiliently contacts the second component portion. That is, both the resilient support portion that allows displacement of the movable portion relative to the fixed portion and the resilient contact portion are provided on the first shielding member. Therefore, a material with high spring properties can be used for the first shielding member, while an inexpensive material with no or low spring properties can be used for the second shielding member. As a result, the cost of the shielding member pair can be reduced.
[0022] In the embodiment described below, unlike this mode, the second component portion has a resilient contact portion that resiliently contacts the mating shield member.
[0023] A seventh aspect of the present invention relates to a pair of shielding members according to any one of the third to sixth aspects, wherein the first shielding member includes a closing wall portion disposed inside or outside the elastic support portion.
[0024] However, when elastic support portions are formed, gaps tend to form around the elastic support portions. These gaps result in a decrease in shielding performance. Therefore, in this embodiment, the first shield member includes a closing wall portion disposed inside or outside the elastic support portions. This allows the closing wall portion to close any gaps that form around the elastic support portions. As a result, shielding performance can be improved.
[0025] The shielding member pair according to the eighth aspect is any one of the second to seventh aspects, wherein the shielding member pair is provided with a component force generating section that generates a component force that displaces the movable section in a direction perpendicular to the up-down direction relative to the fixed section.
[0026] In this aspect, the pair of shielding members includes a component force generating portion that generates a component force that displaces the movable portion in a direction perpendicular to the up-down direction relative to the fixed portion, making it easy to displace the movable portion in an appropriate direction.
[0027] The pair of shielding members according to the ninth aspect is any one of the first to eighth aspects, in which the first shielding portion has a first cylindrical portion, the second shielding portion has a second cylindrical portion, and at least a portion of the second cylindrical portion is capable of overlapping with the first cylindrical portion in the vertical direction.
[0028] In this aspect, the first shielding part has a first cylindrical part, and the second shielding part has a second cylindrical part. Therefore, the first cylindrical part and the second cylindrical part can surround the object to be shielded from a direction perpendicular to the up-down direction. As a result, high shielding performance can be achieved.
[0029] In the embodiment described below, at least a portion of the second cylindrical portion is inserted inside the first cylindrical portion in a state where at least a portion of the second cylindrical portion overlaps with the first cylindrical portion in the vertical direction. However, this aspect is not limited to this.
[0030] A tenth aspect of the shield member pair is any one of the second to eighth aspects, wherein the first shield member has an upward direction restricting portion that restricts the movable portion from being excessively displaced upward.
[0031] In this aspect, the first shield member has an upward direction restricting portion that restricts the movable portion from being displaced excessively upward, thereby preventing the movable portion from being displaced excessively upward.
[0032] In the embodiment described below, when the first shielding member and the second shielding member are released from their connected state, an upward force is applied to the movable portion of the first shielding member (for this reason, the above-described upward direction restricting portion is effective). However, this aspect is not limited to this.
[0033] The pair of shielding members according to an eleventh aspect is any one of the first to tenth aspects, wherein neither the first component part nor the second component part has a portion that is fixed to the object to be shielded.
[0034] In this aspect, neither the first component nor the second component has a portion that is fixed to the object to be shielded, which simplifies the structure of the shielding member pair.
[0035] A pair of shielding members according to a twelfth aspect is any one of the first to eleventh aspects, wherein the first shielding member does not have a portion that is fixed to the object to be shielded.
[0036] In this aspect, the first shield member does not have a portion that is fixed to the object to be shielded, which further simplifies the structure of the pair of shield members.
[0037] Fig. 1 is a cross-sectional view showing a shielding structure according to an embodiment; Fig. 2 is a cross-sectional view showing a shielding structure (connected state) according to an embodiment; Fig. 3 is an exploded perspective view of a connector pair including a floating connector; Fig. 4 is a perspective view of a shielding member pair; Fig. 5 is a perspective view of the shielding member pair as seen from another direction; Fig. 6 is an enlarged cross-sectional view of the shielding member pair in a connected state; Fig. 7 is an enlarged cross-sectional view of the shielding member pair in a connected state;
[0038] Preferred embodiments of the present disclosure will be described below.
[0039] In addition, the +X direction of the arrow shown in each drawing may be described as one side in the width direction, the +Y direction of the arrow as one side in the front-rear direction, and the +Z direction of the arrow as the upper side in the up-down direction. However, this does not limit the position of the shield member etc. when in use.
[0040] 1 and 2 show a shield structure 100 according to an embodiment.
[0041] The shield structure 100 includes attachment objects 91 and 92 , electronic components 11 and 12 , and shields 21 and 22 .
[0042] In the shielding structure 100, electronic components 11 and 12, which are "shielded objects", are shielded by shields 21 and 22. The electronic components 11 and 12 and the shields 21 and 22 are attached to attachment objects 91 and 92, respectively.
[0043] The attachment objects 91, 92 include a first attachment object 91 and a second attachment object 92. The first attachment object 91 is a first substrate 91, and the second attachment object 92 is a second substrate 92. The first substrate 91 and the second substrate 92 are disposed opposite each other with their thickness directions facing the same direction (Z direction). Hereinafter, the first substrate 91 may be simply referred to as the substrate 91, and the second substrate 92 may be referred to as the mating substrate 92.
[0044] The electronic components 11, 12 are a connector pair 11, 12 consisting of a first connector 11 and a second connector 12. The first connector 11 is attached to a first attachment object 91, and the second connector 12 is attached to a second attachment object 92. When the first connector 11 and the second connector 12 are connected, the first board 91 and the second board 92 are electrically connected (see FIG. 2 ). Hereinafter, the first connector 11 may be simply referred to as the connector 11, and the second connector 12 may be referred to as the mating connector 12.
[0045] 1, the first connector 11 is a floating connector. The first connector 11 includes a first terminal portion 31 formed with at least one first terminal 31, and a first housing portion 32 that holds the first terminal portion 31. The first housing portion 32 includes a fixed housing 33 that is fixed to a first attachment object 91, and a movable housing 34 that is displaceable relative to the fixed housing 33. The movable housing 34 is displaceable in any of the X, Y, and Z directions, as well as directions oblique to these directions.
[0046] The first terminal 31 has a connection portion 31a that is connected to the first attachment object 91 by soldering, and a contact portion 31b that comes into contact with the second terminal 41 of the second connector 12. The first terminal 31 is held by both the fixed housing 33 and the movable housing 34. An elastically deformable portion is formed between the portion of the first terminal 31 that is held by the fixed housing 33 and the portion that is held by the movable housing 34. This allows the movable housing 34 to be displaced.
[0047] The second connector 12 is not a floating connector. The second connector 12 includes a second terminal portion 41 including at least one second terminal 41, and a second housing portion 42 that holds the second terminal portion 41. The second housing portion 42 includes a fixed housing 43 that is fixed to the second mounting object 92, and does not include a movable housing that is displaceable relative to the second mounting object 92. The second terminal 41 includes a connection portion 41a that is connected to the second mounting object 92 by soldering, and a contact portion 41b that comes into contact with the first terminal 31.
[0048] The first terminal portion 31 includes a plurality of first signal terminals 31A. The plurality of first signal terminals 31A are configured by arranging a large number of pairs of first signal terminals 31A in the X direction. The second terminal portion 41 includes a plurality of second signal terminals 41A. The plurality of second signal terminals 41A are configured by arranging a large number of pairs of second signal terminals 41A in the X direction. The contact portions 31b of the pair of first signal terminals 31A contact the contact portions 41b of the pair of second signal terminals 41A so as to sandwich them from the outside in the Y direction (see FIGS. 1 and 2 ).
[0049] The first terminal portion 31 includes a plurality of first power supply terminals 31B. The second terminal portion 41 includes a plurality of second power supply terminals 41B. The plurality of first power supply terminals 31B are arranged in an area on one side in the X direction and an area on the other side in the X direction with respect to the area where the plurality of first signal terminals 31A are arranged. The same applies to the plurality of second power supply terminals 41B.
[0050] The contact pressure generated by contact between the contact portion 31b of the first signal terminal 31A and the contact portion 41b of the second signal terminal 41A occurs in a plane (within the XY plane) perpendicular to the direction in which the first attachment object 91 and the second attachment object 92 face each other (Z direction).
[0051] The contact pressure generated by contact between the first power supply terminal 31B and the second power supply terminal 41B also occurs in a plane (XY plane) perpendicular to the direction in which the first attachment object 91 and the second attachment object 92 face each other (Z direction).
[0052] (Shields 21 and 22) The shields 21 and 22 are a pair of shield members 21 and 22 composed of a first shield member 21 and a second shield member 22.
[0053] (First shielding member 21) The first shielding member 21 is made by subjecting a single piece of conductive plate material to processes such as punching and bending, etc. Therefore, one part of the first shielding member 21 is connected to another part without any joint therebetween.
[0054] The first shield member 21 has a cylindrical shape (specifically, a rectangular cylindrical shape) and is substantially symmetrical in both the X direction and the Y direction.
[0055] 4, a joint 21h is formed at one side in the Y direction (+Y direction side) of the cylindrical first shielding member 21, where ends of the plates constituting the first shielding member 21 are joined together. The joint 21h is provided at the center of the first shielding member 21 in the X direction.
[0056] The first shielding member 21 has a fixed portion 50 fixed to a first substrate 91 as the "first mounting object", a movable portion 60 displaceable relative to the fixed portion 50, and an elastic support portion 70 that supports the movable portion 60 so that it can be displaced.
[0057] (Fixed Part 50 ) The fixed part 50 includes a fixed shield part 51 .
[0058] The fixed shield part 51 includes a pair of first wall parts 51a facing each other in the X direction and a pair of second wall parts 51b facing each other in the Y direction. The first wall parts 51a are wall parts extending in the Y direction and are flat plates with their thickness direction facing the X direction. The second wall parts 51b are wall parts extending in the X direction and are flat plates with their thickness direction facing the Y direction. As a result, the fixed shield part 51 is formed in a cylindrical shape (specifically, a rectangular cylindrical shape). The fixed shield part 51 is sometimes referred to as the cylindrical part 51. The first wall parts 51a and the second wall parts 51b are connected via a curved part extending in the vertical direction. As a result, the cylindrical part 51 is completely cylindrical.
[0059] The fixing portion 50 includes a plurality of connecting portions 52 a, 52 b, and 52 c. Each of the plurality of connecting portions 52 a, 52 b, and 52 c is joined by soldering to a pad (not shown) formed on the upper surface of the first substrate 91. This attaches the first shielding member 21 to the first substrate 91 and electrically connects the first shielding member 21 and the first substrate 91 together.
[0060] The plurality of connection portions 52 a, 52 b, 52 c include a plurality of first connection portions 52 a protruding from the first wall portion 51 a. Each of the first connection portions 52 a has a shape that protrudes downward from the lower edge of the first wall portion 51 a. A plurality (two) of the first connection portions 52 a are formed for each of the first wall portions 51 a.
[0061] The plurality of connection portions 52a, 52b, 52c includes a plurality of second connection portions 52b protruding from the second wall portion 51b. The second connection portions 52b have a shape that protrudes downward from the lower edge of the second wall portion 51b. A plurality (eight) of the second connection portions 52b are formed for each second wall portion 51b.
[0062] The connecting portions 52a, 52b, and 52c include four third connecting portions 52c whose thickness directions are oriented in the up-down direction. The third connecting portions 52c are connected to the second wall portion 51b via curved portions.
[0063] The fixed part 50 has a plurality of notches 54. The notches 54 are formed in the second wall part 51b of the fixed shield part 51. Specifically, each of the pair of second wall parts 51b has two notches 54. The notches 54 are portions where a part near the lower edge of the fixed shield part 51 is cut out. The positions of the notches 54 correspond to the positions where the first power supply terminal 31B of the first connector 11 is disposed. This ensures an appropriate distance between the fixed shield part 51 and the first power supply terminal 31B.
[0064] The fixing portion 50 has a carrier cutting portion 55. The carrier cutting portion refers to a portion that was connected to the carrier when the shielding member was manufactured by progressive processing and that is ultimately cut off. The carrier cutting portion 55 is formed on one of the pair of second wall portions 51b on the side opposite the second wall portion 51b on which the joint portion 21h is provided. Two carrier cutting portions 55 are formed with an interval in the X direction.
[0065] (Moving Part 60) The moving part 60 is cylindrical (specifically, rectangular cylindrical).
[0066] The movable portion 60 includes movable shield portions 61 and 62 .
[0067] The movable shield parts 61 and 62 include an inner cylindrical part 61 and an outer cylindrical part 62 arranged outside the inner cylindrical part 61 .
[0068] The inner cylindrical portion 61 includes a pair of first inner wall portions 61a facing each other in the X direction and a pair of second inner wall portions 61b facing each other in the Y direction. The first inner wall portions 61a are wall portions extending in the Y direction and are flat plates with their thickness directions facing the X direction. The second inner wall portions 61b are wall portions extending in the X direction and are flat plates with their thickness directions facing the Y direction. The first inner wall portions 61a and the second inner wall portions 61b are connected via a curved portion extending in the vertical direction. Therefore, the inner cylindrical portion 61 is completely cylindrical.
[0069] The outer cylindrical portion 62 includes a pair of first outer wall portions 62a facing each other in the X direction and a pair of second outer wall portions 62b facing each other in the Y direction. The first outer wall portions 62a are wall portions extending in the Y direction and are flat plate-shaped with their thickness direction facing the X direction. The second outer wall portions 62b are wall portions extending in the X direction and are flat plate-shaped with their thickness direction facing the Y direction. A gap is formed between the first outer wall portions 62a and the second outer wall portions 62b. Therefore, the outer cylindrical portion 62 is not completely cylindrical, but is approximately cylindrical.
[0070] In connection with the formation of the joint portion 21h on one side in the Y direction of the first shield member 21, the second outer wall portion 62b on one side in the Y direction is separated into two portions.
[0071] The outer cylindrical portion 62 is connected to the inner cylindrical portion 61 via a plurality of folded portions 63 a, 63 b. Specifically, the first outer wall portion 62 a is connected to the first inner wall portion 61 a via the first folded portion 63 a. The second outer wall portion 62 b is connected to the second inner wall portion 61 b via a plurality of second folded portions 63 b.
[0072] The second outer wall portion 62b is disposed outside the elastic support portion 70. As a result, the second outer wall portion 62b closes the gap formed around the elastic support portion 70. The second outer wall portion 62b may be referred to as a closing wall portion 62b.
[0073] To put it another way, a gap is formed in the vertical direction between the cylindrical portion 51 of the fixed portion 50 and the inner cylindrical portion 61 of the movable portion 60. The first outer wall portion 62a and the second outer wall portion 62b that constitute the outer cylindrical portion 62 function to close this gap. Since the elastic support portion 70 is disposed in the gap between the cylindrical portion 51 and the inner cylindrical portion 61, the above-mentioned gap formed around the elastic support portion 70 can be said to be part of the gap between the cylindrical portion 51 and the inner cylindrical portion 61.
[0074] (Inclined Plate Portions 64a, 64b) The movable portion 60 has a plurality of (four) inclined plate portions 64a, 64b.
[0075] The plurality of (four) inclined plate portions 64 a, 64 b are composed of a plurality of first inclined plate portions 64 a and a plurality of second inclined plate portions 64 b. Hereinafter, when no particular distinction is made, they will simply be referred to as the inclined plate portions 64 a, 64 b.
[0076] The plurality of first inclined plate portions 64a are composed of a plurality (two) of first inclined plate portions 64a on one side in the Y direction and a plurality (two) of first inclined plate portions 64a on the other side in the Y direction. Hereinafter, when no particular distinction is made, they will be simply referred to as first inclined plate portions 64a.
[0077] The plurality of second inclined plate portions 64b are composed of a plurality (two) of second inclined plate portions 64b on one side in the Y direction and a plurality (two) of second inclined plate portions 64b on the other side in the Y direction. Hereinafter, when no particular distinction is made, they will simply be referred to as second inclined plate portions 64b.
[0078] The inclined plate portions 64a, 64b are flat and extend in a direction inclined outward in the X direction or the Y direction relative to the upward direction. In other words, the inclined plate portions 64a, 64b are configured to apply a force to the second shield member 22 that comes into contact with the inclined plate portions 64a, 64b during the connection operation in a direction that eliminates positional misalignment in the XY plane. The inclined plate portions 64a, 64b are sometimes referred to as component force generating portions 64a, 64b.
[0079] The inclined plate portions 64a, 64b are connected to the inner cylindrical portion 61 via curved portions 65a, 65b that are bent at an angle of approximately 30 degrees to approximately 45 degrees. Specifically, the first inclined plate portion 64a is provided so as to extend from the first inner wall portion 61a of the inner cylindrical portion 61. The second inclined plate portion 64b is provided so as to extend from the second inner wall portion 61b of the inner cylindrical portion 61. The inclined plate portions 64a, 64b are located outside (outside in the X direction or outside in the Y direction) with respect to the inner cylindrical portion 61.
[0080] First bent portions 63a are provided on one side in the Y direction and the other side in the Y direction of the first inclined plate portion 64a.
[0081] A second bent portion 63b is provided on one side in the X direction and the other side in the X direction of the plurality of second inclined plate portions 64b arranged in the X direction. In addition, a second bent portion 63b is also provided between two second inclined plate portions 64b adjacent to each other in the X direction.
[0082] (Elastic support portion 70) The elastic support portion 70 is composed of a pair of spring portions 71. The pair of spring portions 71 is composed of a spring portion 71 on one side in the X direction and a spring portion 71 on the other side in the X direction. The X direction is the longitudinal direction of the first shield member 21. The spring portion 71 on one side in the X direction and the spring portion 71 on the other side in the X direction have a symmetrical structure with respect to the X direction. Hereinafter, when no particular distinction is made, they will be simply referred to as spring portions 71.
[0083] The spring portion 71 includes a pair of spring pieces 72. The pair of spring pieces 72 is composed of a spring piece 72 on one side in the Y direction and a spring piece 72 on the other side in the Y direction. The pair of spring pieces 72 have shapes that are symmetrical with respect to the Y direction. Hereinafter, unless otherwise specified, they will be simply referred to as spring pieces 72.
[0084] The spring piece 72 connects the fixed part 50 and the movable part 60. Specifically, the spring piece 72 connects the cylindrical part 51 of the fixed part 50 and the inner cylindrical part 61 of the movable part 60. More specifically, the spring piece 72 connects the second wall part 51 b of the fixed part 50 and the second inner wall part 61 b of the movable part 60.
[0085] The spring piece 72 is provided at a position overlapping the inner cylindrical portion 61 of the movable portion 60 when viewed from above.
[0086] The spring piece 72 has a one-side extending portion 72a extending in a direction away from the starting end of the spring piece 72 (inward in the X direction), a other-side extending portion 72b extending in a direction approaching the terminal end of the spring piece 72 (outward in the X direction), and a folded portion 72c connecting the one-side extending portion 72a and the other-side extending portion 72b. The folded portion 72c extends in a substantially arc shape.
[0087] The one-side extending portion 72a extends in a direction sloping upward away from the starting end of the spring piece 72 (inward in the X direction), while the other-side extending portion 72b extends in a direction sloping upward toward the terminal end of the spring piece 72 (outward in the X direction).
[0088] 7 , the first outer wall portion 62a of the movable portion 60 has a through hole 69. The fixed portion 50 has a bent portion 59 that is inserted into the through hole 69. The bent portion 59 is constrained within the through hole 69, thereby preventing the movable portion 60 from being excessively displaced relative to the fixed portion 50. The directions in which the restriction mechanisms 59, 69 prevent excessive displacement are both in the up-down direction and in the Y direction.
[0089] The through-hole 69 is a rectangular hole. The thickness direction of the bent portion 59 is oriented in the up-down direction. The bent portion 59 is formed at the upper end of the first wall portion 51 a of the fixing portion 50 .
[0090] (Second Shielding Member 22) The second shielding member 22 is made by subjecting a single piece of conductive plate material to punching, bending, and other processes.
[0091] The second shield member 22 has a cylindrical shape (specifically, a rectangular cylindrical shape) and is substantially symmetrical in both the X direction and the Y direction.
[0092] 4, a joint 22h is formed at one side in the Y direction (+Y direction side) of the cylindrical second shield member 22, where ends of the plates constituting the second shield member 22 are joined together. The joint 22h is provided at the center of the second shield member 22 in the X direction.
[0093] The second shielding member 22 has a fixing portion 80 that is fixed to a second substrate 92 that serves as a "second attachment object." Unlike the first shielding member 21, the second shielding member 22 does not have a movable portion or an elastic support portion.
[0094] (Fixed Part 80 ) The fixed part 80 includes a fixed shield part 81 .
[0095] The fixed shield part 81 includes a pair of first wall parts 81a facing each other in the X direction and a pair of second wall parts 81b facing each other in the Y direction. The first wall parts 81a are wall parts extending in the Y direction and are flat plates with their thickness direction facing the X direction. The second wall parts 81b are wall parts extending in the X direction and are flat plates with their thickness direction facing the Y direction. As a result, the fixed shield part 81 is formed in a cylindrical shape (specifically, a rectangular cylindrical shape). The fixed shield part 81 is sometimes referred to as the cylindrical part 81. The first wall parts 81a and the second wall parts 81b are connected via a curved part extending in the vertical direction. As a result, the cylindrical part 81 is completely cylindrical.
[0096] The fixing portion 80 includes a plurality of connecting portions 82 a, 82 b, and 82 c. Each of the plurality of connecting portions 82 a, 82 b, and 82 c is joined by soldering to a pad (not shown) formed on the upper surface of the first substrate 91. This attaches the second shielding member 22 to the second substrate 92 and electrically connects the second shielding member 22 and the second substrate 92 together.
[0097] The multiple connection portions 82a, 82b, 82c include multiple first connection portions 82a protruding from the first wall portion 81a. The multiple connection portions 82a, 82b, 82c include multiple second connection portions 82b protruding from the second wall portion 81b. The multiple connection portions 82a, 82b, 82c include multiple (four) third connection portions 82c whose plate thickness directions are oriented in the up-down direction. The third connection portions 82c are connected to the second wall portion 81b via curved portions.
[0098] (Resilient Contact Portions 84) The second shielding member 22 has a plurality of resilient contact portions 84. The resilient contact portions 84 come into resilient contact with the first shielding member 21.
[0099] The plurality of elastic contact portions 84 are configured from a plurality (two) of elastic contact portions 84 on one side in the Y direction and a plurality (two) of elastic contact portions 84 on the other side in the Y direction.
[0100] The elastic contact portion 84 comes into contact with the first shielding member 21 so as to generate a contact pressure in a direction perpendicular to the up-down direction. Specifically, the elastic contact portion 84 comes into contact with the first shielding member 21 from the inside in the Y direction. The elastic contact portion 84 comes into contact with the second inner wall portion 61b of the inner cylindrical portion 61 of the movable portion 60 of the first shielding member 21. In other words, the second inner wall portion 61b functions as the contact portion 61b of the first shielding member 21.
[0101] The resilient contact portion 84 extends from the second wall portion 81 b. The contact point of the resilient contact portion 84 that comes into contact with the first shielding member 21 is located above the lower edge of the second wall portion 81 b. The contact point of the resilient contact portion 84 that comes into contact with the first shielding member 21 is located outside (outside in the Y direction) of the outer surface (outer surface in the Y direction) of the second wall portion 81 b.
[0102] The elastic contact portion 84 is provided at a position where, during connection work, it can come into contact with the inclined plate portions 64a, 64b of the first shield member 21. Specifically, the position in the X direction at which the elastic contact portion 84 is provided is within the range in the X direction at which the second inclined plate portion 64b is provided.
[0103] <Operation and Effect> Next, the operation and effect of this embodiment will be described.
[0104] In this embodiment, as shown in FIGS. 1 and 2 , the pair of shield members 21, 22 includes a first shield member 21 attached to a first attachment object 91 and a second shield member 22 attached to a second attachment object 92. The first shield member 21 and the second shield member 22 face each other in the vertical direction (Z direction). The first shield member 21 has a first component 60, and the second shield member 22 has a second component 80. The first component 60 has first shield portions 61, 62 that shield the shield objects 11, 12 from a direction perpendicular to the vertical direction (Z direction). The second component 80 has a second shield portion 81 that shields the shield objects 11, 12 from a direction perpendicular to the vertical direction (Z direction). Therefore, the first shield portions 61, 62 and the second shield portion 81 can shield the shield objects 11, 12 from a direction perpendicular to the vertical direction (Z direction).
[0105] 2, at least a portion of the second shield part 81 can overlap with the first shield parts 61, 62 in the vertical direction (Z direction). This makes it possible to eliminate or reduce the vertical gap that occurs between the first shield member 21 and the second shield member 22. As a result, it is possible to suppress a decrease in shielding performance.
[0106] 1 , at least one of the first component 60 and the second component 80 does not have a portion that is fixed to the objects to be shielded 11, 12. Therefore, it is not necessary to provide at least one of the first component 60 and the second component 80 with a structure for fixing them to the objects to be shielded 11, 12. As a result, the structure of the pair of shielding members 21, 22 can be simplified.
[0107] Furthermore, in this embodiment, the first shield member 21 has a fixed portion 50 fixed to the first attachment object 91, and a movable portion 60 serving as a first component 60 that is displaceable relative to the fixed portion 50. The movable portion 60 is displaceable in a direction perpendicular to the up-down direction relative to the fixed portion 50. Therefore, the first component 60 is displaceable in a direction perpendicular to the up-down direction (Z direction) relative to the first attachment object 91. As a result, it is possible to accommodate positional misalignment between the first shield member 21 and the second shield member 22 (positional misalignment in a direction perpendicular to the up-down direction (Z direction)).
[0108] 4, in this embodiment, the first shield member 21 has an elastic support portion 70 that supports the movable portion 60 so that the movable portion 60 can be displaced. The elastic support portion 70 has a spring piece 72 that connects the fixed portion 50 and the movable portion 60. Therefore, the movable portion 60 (first component portion 60) can be elastically displaced.
[0109] 1, in this embodiment, the plate material constituting the first shielding member 21 is thinner than the plate material constituting the second shielding member 22. Therefore, the spring pieces 72 can be made of a thin plate material, and flexibility of the elastic support portion 70 can be ensured.
[0110] However, if the first component 60 is provided with a resilient contact portion for electrically connecting the first shielding member 21 and the second shielding member 22 by resilient contact therebetween, the structure of the first shielding member 21, which has the resilient support portion 70, becomes even more complex. Therefore, in the present embodiment, the second component 80 has a resilient contact portion 84 that resiliently contacts the first component 60. This makes it possible to prevent the structure of the first shielding member 21 from becoming too complicated.
[0111] However, when the elastic support portion 70 is formed, gaps tend to form around the elastic support portion 70. These gaps result in a decrease in shielding performance. Therefore, in this embodiment, the first shield member 21 includes a closing wall portion 62b that is disposed inside or outside the elastic support portion 70. Therefore, the closing wall portion 62b can close any gaps that form around the elastic support portion 70. As a result, the shielding performance can be improved.
[0112] Furthermore, in this embodiment, the pair of shield members 21, 22 include component force generating units 64a, 64b that generate component forces that displace the movable part 60 in a direction perpendicular to the up-down direction relative to the fixed part 50. This makes it easy to displace the movable part 60 in an appropriate direction.
[0113] In addition, in this embodiment, the first shielding parts 61, 62 have a first cylindrical part 61, and the second shielding part 81 has a second cylindrical part 81. Therefore, the first cylindrical part 61 and the second cylindrical part 81 can surround the objects to be shielded 11, 12 in a direction perpendicular to the up-down direction. As a result, high shielding performance can be achieved.
[0114] In the present embodiment, the first shield member 21 has upward direction restricting portions 59, 69 that restrict the movable portion 60 from being excessively displaced upward (in the +Z direction). Therefore, the movable portion 60 can be prevented from being excessively displaced upward (in the +Z direction).
[0115] In addition, in this embodiment, neither the first component 60 nor the second component 80 has a portion that is fixed to the objects to be shielded 11, 12. This simplifies the structure of the pair of shielding members 21, 22. Furthermore, in this embodiment, the first shielding member 21 does not have a portion that is fixed to the objects to be shielded 11, 12. This simplifies the structure of the pair of shielding members 21, 22 even further.
[0116] Although the preferred embodiments of the connector of the present disclosure have been described above, the present disclosure is not limited thereto.
[0117] REFERENCE SIGNS LIST 11, 12 Connector pair (electronic component, shielded object) 11 First connector 12 Second connector 21, 22 Shielding member pair (shield) 21 First shielding member 22 Second shielding member 50 Fixed portion 51 Fixed shielding portion (cylindrical portion) 51a First wall portion 51b Second wall portion 59 Bending portion (upward direction restricting mechanism) 60 Movable portion (first component portion) 61, 62 Movable shielding portion (first shielding portion) 61 Inner cylindrical portion (first cylindrical portion) 61a First inner wall portion 61b Second inner wall portion (contact portion) 62 Outer cylindrical portion 62a First outer wall portion 62b Second outer wall portion (closure wall portion) 64a, 64b Inclined plate portion (component force generating portion) 64a First inclined plate portion (component force generating portion) 64b Second inclined plate portion (component force generating portion) 69 Through hole (upward direction restriction mechanism) 70 Elastic support portion 71 Spring portion 72 Spring piece 72a One-side extending portion 72b Other-side extending portion 72c Folded portion 80 Fixed portion (second component portion) 81 Fixed shield portion (second cylindrical portion, second shield portion) 81a First wall portion 81b Second wall portion 84 Elastic contact portion 91 First substrate (first attachment object) 92 Second substrate (second attachment object) 100 Shield structure
Claims
1. A pair of shielding members for shielding an object to be shielded, the pair of shielding members comprising: a first shielding member attached to a first object to be attached; and a second shielding member attached to a second object to be attached, wherein the first shielding member and the second shielding member face each other in the vertical direction, the first shielding member has a first component, the second shielding member has a second component, the first component has a first shielding portion for shielding the object to be shielded from a direction perpendicular to the vertical direction, the second component has a second shielding portion for shielding the object to be shielded from a direction perpendicular to the vertical direction, at least a part of the second shielding portion can overlap with the first shielding portion in the vertical direction, and at least one of the first component and the second component does not have a portion fixed to the object to be shielded. A pair of shielding members.
2. The pair of shielding members according to claim 1, wherein the first shielding member has a fixing portion fixed to the first object to be attached and a movable portion as the first component that is displaceable with respect to the fixing portion, and the movable portion is displaceable with respect to the fixing portion in a direction perpendicular to the vertical direction.
3. The pair of shielding members according to claim 2, wherein the first shielding member has an elastic support portion that supports the movable portion so as to be displaceable, and the elastic support portion has a spring piece connecting the fixing portion and the movable portion.
4. The pair of shielding members according to claim 3, wherein the plate material constituting the first shielding member is thinner than the plate material constituting the second shielding member.
5. The pair of shielding members according to claim 2, wherein the first shielding member has an elastic support portion that supports the movable portion so as to be displaceable, the elastic support portion has a spring piece connecting the fixing portion and the movable portion, and the second component has an elastic contact portion that elastically contacts the first component.
6. The pair of shielding members according to claim 2, wherein the first shielding member has an elastic support portion that supports the movable portion so as to be displaceable, the elastic support portion has a spring piece connecting the fixing portion and the movable portion, and the movable portion has an elastic contact portion that elastically contacts the second component.
7. The first shielding member pair according to claim 3, wherein the first shielding member includes a closing wall portion disposed inside or outside the elastic support portion.
8. The shielding member pair according to claim 2, wherein the shielding member pair includes a component force generating portion that generates a component force for displacing the movable portion in a direction perpendicular to the vertical direction with respect to the fixed portion.
9. The shielding member pair according to claim 1, wherein the first shielding portion has a first cylindrical portion, the second shielding portion has a second cylindrical portion, and at least a part of the second cylindrical portion can overlap with the first cylindrical portion in the vertical direction.
10. The shielding member pair according to claim 2, wherein the first shielding member has an upward restricting portion that restricts the movable portion from being excessively displaced upward.
11. The shielding member pair according to claim 1, wherein neither the first component portion nor the second component portion has a portion fixed to the object to be shielded.
12. The shielding member pair according to claim 1, wherein the first shielding member has no portion fixed to the object to be shielded.
Citation Information
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