Shielding member and shielding member pair
By employing a design where the contact area in the shielding component contacts the object being shielded, and utilizing the cooperation of movable and fixed parts, the problem of reduced shielding performance caused by gaps in the shielding components is solved, achieving efficient electrical connection stability and structural simplification, and adapting to various shielding objects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- IRISO ELECTRONICS CO LTD
- Filing Date
- 2025-01-21
- Publication Date
- 2026-07-24
AI Technical Summary
When existing shielding components consist of multiple convex contact points arranged along the length of the shield, they tend to form narrow gaps, which reduces shielding performance and makes it difficult to uniformly control the protrusion of the convex contact points, affecting the electrical connection effect.
The contact area extends along the length of the shielding component to contact the object. The design of movable and fixed parts absorbs positional offset and tilt, ensuring a stable contact state. At the same time, it avoids forming contact areas along the shielding length on the substrate surface, maintaining the freedom of wiring.
It improves shielding performance, ensures the stability and reliability of electrical connections, simplifies the structure of shielding components, adapts to the size and shape variations of various shielding objects, and does not affect the wiring layout of the substrate.
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Figure CN122459975A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to shielding components and shielding component pairs. Background Technology
[0002] The shielding component is disclosed in Patent Document 1.
[0003] Existing technical documents
[0004] Patent documents
[0005] Patent Document 1: Japanese Patent Application Publication No. 2021-096933 Summary of the Invention
[0006] One of the purposes of this disclosure is to provide a shielding component and a pair of shielding components with high shielding performance.
[0007] The shielding component involved in the first method is a shielding component used to shield an object. The shielding component has a contact portion that contacts the object. The contact portion is configured to contact the object in a contact area extending along the length direction of the shielding component.
[0008] In this method, the shielding component has a contact portion that contacts the object being contacted.
[0009] Therefore, it is possible to electrically connect the shielding component to the object being contacted.
[0010] However, if the contact portion is composed of multiple convex contact portions arranged along the length direction of the shielding component (shielding length direction), a narrow gap is formed between adjacent convex contact portions along the shielding length direction. This gap leads to a decrease in shielding performance. Although increasing the number of convex contact portions can reduce the spacing between adjacent convex contact portions, it is difficult to make the protrusion of the multiple convex contact portions uniform, and some convex contact portions become non-contact.
[0011] Therefore, in this method, the contact portion is configured to contact the object being contacted in a contact area extending along the length direction of the shielding member.
[0012] Therefore, compared to a method where the contact portion is composed of multiple convex contact portions arranged along the length direction of the shielding component (shielding length direction), it is possible to suppress the formation of gaps extending along the shielding length direction between the shielding component and the contact object. As a result, a shielding component with high shielding performance can be achieved.
[0013] Furthermore, in the embodiments described later, multiple (two) contact portions are arranged along the length direction, and the total length of the contact areas of these multiple contact portions is at least 60% of the length dimension of the shielding component. However, this method is not limited to this.
[0014] Furthermore, in the embodiments described later, the shielding member has a movable part, and the movable part has a contact part.
[0015] Furthermore, in the embodiments described later, the object of contact that the contact portion contacts is another shielding component (second shielding component).
[0016] Furthermore, in the embodiments described later, the shielding member includes a movable part. However, the shielding member of this method is not limited to this.
[0017] Furthermore, in the embodiments described later, the connector pair serving as the shielding object includes a floating connector, but this method is not limited to this. The connector pair serving as the shielding object in this method may also not include a floating connector.
[0018] In addition, in the embodiments described later, the fixing part is directly fixed to the mounting object (first substrate). However, the fixing part in this embodiment is not limited to this. The fixing part can also be indirectly fixed to the mounting object via a shielding object.
[0019] Furthermore, in the embodiments described later, the contact portion is a contact plane portion perpendicular to the connection direction with the object being contacted. However, the contact portion in this embodiment is not limited to this; it can be any contact portion extending in a direction perpendicular to the connection direction with the object being contacted.
[0020] The shielding component involved in the second method is the same as that in the first method, where the contact portion is a contact plane portion perpendicular to the connection direction with the contact object.
[0021] In this method, the contact portion is a contact plane portion perpendicular to the connection direction with the contact object.
[0022] Therefore, even if the contact object shifts in position in a direction perpendicular to the connection direction, a proper contact state can be achieved.
[0023] The shielding component involved in the third method is the same as that in the first or second method. The shielding component has a fixed part that is fixed to the object to be installed and a movable part that can be displaced relative to the fixed part along the connection direction with the object to be contacted. The movable part has the contact part.
[0024] In this method, the shielding component has a fixed part that is fixed to the object to be installed and a movable part that can be displaced relative to the fixed part along the connection direction with the object to be contacted. The movable part has a contact part.
[0025] Therefore, by displacing the movable part along the connection direction, it is possible to absorb the positional shift in the connection direction of the contacting object.
[0026] The shielding component involved in the fourth method is the same as that in the first or second method. The shielding component has a fixed part that is fixed to the object to be installed and a movable part that can tilt and move relative to the fixed part along the length direction. The movable part has the contact part.
[0027] However, if the contact portion is configured to contact the object in a contact area extending along the length of the shielding member, the contact portion and the object may not reach an appropriate contact state if the object is tilted in the length direction relative to the desired state.
[0028] Therefore, in this method, the movable part with the contact portion can tilt and move relative to the fixed part along the length direction.
[0029] Therefore, even when the object being contacted is tilted in the length direction relative to the desired state, a proper contact state between the contact part and the object being contacted can be achieved.
[0030] The shielding component involved in the fifth method is the same as that in the second method. The shielding component has a shielding portion that shields the object from the direction perpendicular to the connection direction with the object. The shielding portion has a wall portion with its thickness direction oriented perpendicular to the connection direction with the object. The contact plane portion is connected to the wall portion via a curved portion extending in the direction perpendicular to the connection direction with the object.
[0031] In this embodiment, the shielding component includes a shielding portion that shields the object from a direction perpendicular to the connection direction with the object being contacted. The shielding portion has a wall portion whose thickness direction is perpendicular to the connection direction with the object being contacted.
[0032] Therefore, the wall portion can shield the object from a direction perpendicular to the connection direction with the object being contacted.
[0033] In addition, in this method, the contact plane portion is connected to the wall portion via a curved portion extending in a direction perpendicular to the connection direction.
[0034] Therefore, a shielding component with a wall and a contact plane can be realized with a simple structure.
[0035] The shielding component involved in the sixth method is in the third or fourth method, where the movable part does not have a portion fixed to the shielding object.
[0036] In this method, the movable part does not have a portion that is fixed to the shielded object.
[0037] Therefore, there is no need to include a structure in the movable part for fixing it to the object being shielded. As a result, the structure of the shielding component can be simplified.
[0038] Furthermore, in the embodiments described later, the movable part does not have a portion that physically engages with the object being shielded, but the movable part of this embodiment is not limited to this. The movable part of this embodiment can have a portion that physically engages with the object being shielded, as long as it does not have a portion fixed to the object being shielded. The case where the movable part has a portion that physically engages with the object being shielded is, for example, the case where the movable part can slidably contact the object being shielded.
[0039] The shielding component involved in the seventh method is in the third or fourth method, where the movable part does not have a portion that physically engages with the object being shielded.
[0040] In this method, the movable part does not have a part that physically engages with the object being shielded.
[0041] Therefore, there is no need to include a structure in the movable part for physical engagement with the object being shielded. As a result, the structure of the shielding component can be simplified.
[0042] The shielding component involved in the eighth method is any one of the first to fifth methods, wherein the shielding component does not have a part fixed to the shielding object.
[0043] In this method, the shielding component does not have a part that is fixed to the object being shielded.
[0044] Therefore, there is no need to include a structure on the shielding component for fixing it to the object being shielded. As a result, the structure of the shielding component can be simplified.
[0045] Furthermore, if there is no need to include a structure on the shielding component for fixing it to the object being shielded, it is advantageous to use a single shielding component to handle multiple objects. That is, even if the size and shape of the object being shielded change, it is easy to use a shielding component with the same structure for shielding.
[0046] In the ninth method, the shielding component in the third or fourth method has a movable part that does not have a portion fixed to the shielding object, and a fixed part that has a portion fixed to the shielding object.
[0047] In this method, the movable part does not have a portion that is fixed to the shielded object.
[0048] Therefore, it is not necessary to provide a structure in the movable part for fixing to the shielded object.
[0049] In addition, in this method, the fixing part has a portion that is fixed to the object being shielded.
[0050] Therefore, it is possible to treat the shielded object and the shielding components as a whole.
[0051] In any of the first to ninth embodiments, the shielding component involved in the tenth embodiment is configured such that the contact portion generates contact pressure in the connection direction with the contact object.
[0052] In this method, the contact portion is configured to generate contact pressure in the direction of connection with the contact object, which is generated by contact with the contact object.
[0053] Therefore, by properly controlling the position of the contact part in the connection direction, appropriate contact pressure can be achieved.
[0054] In addition, the contact pressure mentioned here refers to the vertical resistance generated at the contact point.
[0055] Furthermore, in the embodiments described later, the contact portion is a contact plane portion perpendicular to the connection direction with the contact object. However, the contact portion in this embodiment is not limited to this. For example, the contact object may have a contact plane portion perpendicular to the connection direction with the contact object, and the contact portion may be configured to contact this contact plane portion.
[0056] Furthermore, in the embodiments described later, the shielding member has a movable part that can be displaced along the connection direction, and a contact part is formed in the movable part (therefore, the movable part can be easily displaced along the connection direction by contact pressure). However, this method is not limited to this.
[0057] The shielding component pair involved in the eleventh method is a shielding component pair for shielding a shielding object. The shielding component pair includes a first shielding component mounted on a first mounting object that is a first substrate and a second shielding component mounted on a second mounting object that is a second substrate. The first shielding component has a first contact portion that contacts the second shielding component. The first contact portion is configured to contact the second shielding component in a contact area that extends along the length direction of the first shielding component.
[0058] However, when only a shielding member (first shielding member) mounted on the first substrate is used to shield the object to be shielded between the first and second substrates, the object to be contacted by the first shielding member becomes the second substrate. Therefore, in order to form a contact area extending along the length direction of the shielding member, it is necessary to form a contact portion (pad) extending along the length direction of the shielding member on the surface of the second substrate. However, this reduces the degree of freedom in the wiring layout of the second substrate.
[0059] Therefore, this method relates to a pair of shielding components for shielding an object to be shielded. The pair of shielding components includes a first shielding component mounted on a first mounting object that is a first substrate and a second shielding component mounted on a second mounting object that is a second substrate. Furthermore, the first shielding component has a first contact portion that contacts the second shielding component, and the first contact portion is configured to contact the second shielding component in a contact area extending along the length direction of the first shielding component.
[0060] Therefore, since it is not necessary to form a contact portion (pad) extending along the length direction of the shielding component on the surface of the second substrate, the degree of freedom in the wiring layout of the second substrate can be ensured.
[0061] Furthermore, in the embodiments described later, the first shielding member has a connecting portion, which is used to engage with the first substrate, and the first shielding member is mounted on the first substrate. However, the first shielding member in this embodiment is not limited to this. It is also possible to mount the first shielding member on the object to be shielded, mount the object to be shielded on the first substrate, and then mount the first shielding member on the first substrate. That is, the first shielding member may not have a connecting portion. The same applies to the second shielding member. Attached Figure Description
[0062] Figure 1 This is a cross-sectional view showing the shielding structure involved in the implementation method.
[0063] Figure 2 This is a cross-sectional view showing the shielding structure (connection state) involved in the implementation method.
[0064] Figure 3 It is an exploded perspective view of a connector pair including a floating connector.
[0065] Figure 4 It is a 3D view of the shielding components.
[0066] Figure 5 This is a three-dimensional view of the shielding components from other directions.
[0067] Figure 6 This is a partially enlarged 3D view of the first shielding component.
[0068] Figure 7 This is a cross-sectional view of the shielding components.
[0069] Explanation of reference numerals in the attached figures
[0070] 11, 12… connector pairs (electronic components, shielded objects);
[0071] 11…First connector;
[0072] 12…Second connector;
[0073] 21, 22… Shielding component pairs (shielding parts);
[0074] 21…First shielding component (shielding component, contact object);
[0075] 22…Second shielding component (shielding component, contact object);
[0076] 50…fixed part;
[0077] 51…Fixed shielding part (cylindrical part);
[0078] 51a…First wall section;
[0079] 51b…Second wall section;
[0080] 60…movable parts;
[0081] 61, 62… Movable shielding parts (shielding parts);
[0082] 61…Inner cylindrical part (wall part);
[0083] 61a…First inner wall portion;
[0084] 61b…Second inner wall portion;
[0085] 62…outer tubular portion;
[0086] 62a…First outer wall portion;
[0087] 62b…Second outer wall portion (closed wall portion);
[0088] 64b… Opposing plate portion (contact plane portion, first contact portion, contact portion);
[0089] 70…elastic support section;
[0090] 71…Spring section;
[0091] 72…spring sheet;
[0092] 72a…One-sided extension;
[0093] 72b…the other side extension;
[0094] 72c…foldback section;
[0095] 80…fixed part;
[0096] 81…Fixed shielding part (cylindrical part);
[0097] 81a…First wall section;
[0098] 81b…Second wall section;
[0099] 84a First facing plate section;
[0100] 84b…Second facing plate portion (contact plane portion, contact portion);
[0101] 91…First substrate (first mounting object);
[0102] 92…Second substrate (second mounting object). Detailed Implementation
[0103] The preferred embodiments of this disclosure will be described below.
[0104] Additionally, sometimes the arrow +X direction shown in the diagrams is set to the width direction, the arrow +Y direction to the front-back direction, and the arrow +Z direction to the top-down direction. However, the posture of shielding components, etc., during use is not limited.
[0105] Figure 1 , 2 This indicates the shielding structure 100 involved in the implementation method.
[0106] The shielding structure 100 includes objects 91 and 92 for installation; electronic components 11 and 12; and shielding elements 21 and 22.
[0107] In the shielding structure 100, electronic components 11 and 12, which are "shielded objects", are shielded by shielding components 21 and 22. Electronic components 11 and 12 and shielding components 21 and 22 are mounted on mounting objects 91 and 92.
[0108] Installation objects 91 and 92 include a first installation object 91 and a second installation object 92.
[0109] The first mounting object 91 is the first substrate 91, and the second mounting object 92 is the second substrate 92. The first substrate 91 and the second substrate 92 are arranged facing each other with their thickness directions aligned in the same direction (Z direction).
[0110] Hereinafter, the first substrate 91 will sometimes be referred to simply as substrate 91, and the second substrate 92 will be referred to as the mating side substrate 92.
[0111] Electronic components 11 and 12 are connector pairs 11 and 12 consisting of a first connector 11 and a second connector 12.
[0112] The first connector 11 is mounted on the first mounting object 91, and the second connector 12 is mounted on the second mounting object 92. The first substrate 91 and the second substrate 92 are electrically connected by connecting the first connector 11 and the second connector 12 (see reference). Figure 2 ).
[0113] Hereinafter, the first connector 11 will sometimes be referred to simply as connector 11, and the second connector 12 will be referred to as mating side connector 12.
[0114] like Figure 1 As shown, the first connector 11 is a floating connector.
[0115] The first connector 11 includes a first terminal portion 31 consisting of at least one first terminal 31 and a first housing portion 32 for retaining the first terminal portion 31. The first housing portion 32 includes a fixed housing 33 fixed to a first mounting object 91 and a movable housing 34 capable of displacement relative to the fixed housing 33. The movable housing 34 is capable of displacement in any direction, including the X direction, Y direction, Z direction, and directions inclined relative to these directions.
[0116] The first terminal 31 has a connecting portion 31a that is connected to the first mounting object 91 by welding and a contact portion 31b that contacts the second terminal 41 of the second connector 12. Furthermore, the first terminal 31 is held on a fixed housing 33 and also on a movable housing 34. An elastically deformable portion is formed between the portion of the first terminal 31 held on the fixed housing 33 and the portion held on the movable housing 34. This allows displacement of the movable housing 34.
[0117] The second connector 12 is a connector that is not a floating connector.
[0118] The second connector 12 includes a second terminal portion 41 consisting of at least one second terminal 41 and a second housing portion 42 for retaining the second terminal portion 41. The second housing portion 42 includes a fixed housing 43 fixed to the second mounting object 92, but does not include a movable housing that can be displaced relative to the second mounting object 92.
[0119] The second terminal 41 has a connection portion 41a that is connected to the second mounting object 92 by welding and a contact portion 41b that contacts the first terminal 31.
[0120] 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 plurality of pairs of first signal terminals 31A in the X direction.
[0121] The second terminal section 41 includes a plurality of second signal terminals 41A. The plurality of second signal terminals 41A are configured by arranging a plurality of pairs of second signal terminals 41A in the X direction.
[0122] The contact portion 31b of a pair of first signal terminals 31A contacts the contact portion 41b of a pair of second signal terminals 41A in a manner that clamps in from the outside in the Y direction (see reference). Figure 1 , Figure 2 ).
[0123] The first terminal section 31 has a plurality of first power supply terminals 31B.
[0124] The second terminal section 41 has a plurality of second power supply terminals 41B.
[0125] The plurality of first power supply terminals 31B are arranged in a region on one side of the X direction and a region on the other side of the X direction, relative to the region where the plurality of first signal terminals 31A are arranged. The plurality of second power supply terminals 41B are arranged in the same manner.
[0126] The contact pressure generated by the contact portion 31b of the first signal terminal 31A and the contact portion 41b of the second signal terminal 41A is generated in a direction perpendicular to the direction (Z direction) of the first mounting object 91 and the second mounting object 92 (in the XY plane).
[0127] The contact pressure generated by the contact between the first power terminal 31B and the second power terminal 41B is also generated in a direction perpendicular to the direction (Z direction) of the first mounting object 91 and the second mounting object 92 (in the XY plane).
[0128] (Shielding components 21, 22)
[0129] The shielding components 21 and 22 are a pair of shielding components 21 and 22 composed of the first shielding component 21 and the second shielding component 22.
[0130] (First shielding component 21)
[0131] The first shielding component 21 is manufactured by punching, bending, or performing other processes on a piece of conductive sheet metal. Therefore, a portion of the first shielding component 21 is not connected to other portions via a joint.
[0132] The first shielding component 21 is cylindrical (specifically, square cylindrical).
[0133] The first shielding component 21 has a roughly symmetrical structure in both the X and Y directions.
[0134] like Figure 4 As shown, on the Y-direction side (+Y-direction side) of the first shielding member 21, which is formed in a cylindrical shape, a joint portion 21h is formed to join the ends of the plates constituting the first shielding member 21 to each other. The joint portion 21h is located at the center position of the first shielding member 21 in the X-direction.
[0135] The first shielding member 21 has a fixing part 50 fixed on a first substrate 91, which is the "first installation object", a movable part 60 that can be displaced relative to the fixing part 50, and an elastic support part 70 that supports the movable part 60 so that it can be displaced.
[0136] (Fixed part 50)
[0137] The fixing part 50 includes a fixing shielding part 51.
[0138] The fixed shielding 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.
[0139] The first wall portion 51a is a wall portion extending along the Y direction, and is a flat plate with the thickness direction facing the X direction.
[0140] The second wall portion 51b is a wall portion extending along the X direction, and is a flat plate with the thickness direction facing the Y direction.
[0141] Thus, the fixed shielding portion 51 is formed in a cylindrical shape (specifically, a square cylindrical shape). The fixed shielding portion 51 is sometimes referred to as the cylindrical portion 51. The first wall portion 51a and the second wall portion 51b are connected via a curved portion extending in the vertical direction. Therefore, the cylindrical portion 51 becomes a completely cylindrical shape.
[0142] The fixing part 50 has multiple connecting parts 52a, 52b, and 52c.
[0143] Each of the plurality of connecting portions 52a, 52b, 52c is bonded to a pad (not shown) formed on the upper surface of the first substrate 91 by soldering. Thus, the first shielding member 21 is mounted on the first substrate 91, and the first shielding member 21 and the first substrate 91 are electrically connected.
[0144] The plurality of connecting portions 52a, 52b, and 52c have a plurality of first connecting portions 52a protruding from the first wall portion 51a.
[0145] Each first connecting portion 52a has a shape that protrudes downward relative to the lower edge of the first wall portion 51a. Multiple (two) first connecting portions 52a are formed relative to each first wall portion 51a.
[0146] The plurality of connecting portions 52a, 52b, 52c have a plurality of second connecting portions 52b protruding from the second wall portion 51b.
[0147] The second connecting portion 52b has a shape that protrudes downward relative to the lower edge of the second wall portion 51b. Multiple (eight) second connecting portions 52b are formed relative to each of the second wall portions 51b.
[0148] The multiple connecting portions 52a, 52b, and 52c are provided with multiple (four) third connecting portions 52c that oriented the plate thickness direction in the vertical direction. The third connecting portions 52c are connected to the second wall portion 51b via a bending portion.
[0149] The fixing part 50 has multiple cutouts 54.
[0150] The cutout 54 is formed on the second wall portion 51b of the fixed shield portion 51. Specifically, each pair of second wall portions 51b has two cutouts 54.
[0151] The cutout 54 is a portion near the lower edge of the fixed shield 51 that has been removed. The position of the cutout 54 corresponds to the position where the first power terminal 31B of the first connector 11 is disposed. This ensures an appropriate distance between the fixed shield 51 and the first power terminal 31B.
[0152] The fixing part 50 has a carrier cutting part 55. In addition, the carrier cutting part refers to the part that is connected to the carrier when the shielding component is manufactured by forward feed processing, and is the part that is finally cut off.
[0153] The carrier cutting portion 55 is formed on the second wall portion 51b opposite to the second wall portion 51b on which the joint portion 21h is provided.
[0154] The carrier cutting portion 55 is spaced apart in the X direction to form two.
[0155] (60 movable parts)
[0156] The movable part 60 is cylindrical (specifically, square cylindrical).
[0157] The movable part 60 is equipped with movable shielding parts 61 and 62.
[0158] The movable shielding portions 61 and 62 have an inner cylindrical portion 61 and an outer cylindrical portion 62 disposed on the outside of the inner cylindrical portion 61.
[0159] The inner cylindrical portion 61 has 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.
[0160] The first inner wall portion 61a is a wall portion extending along the Y direction, and is a flat plate with the thickness direction facing the X direction.
[0161] The second inner wall portion 61b is a wall portion extending along the X direction, and is a flat plate with the thickness direction facing the Y direction.
[0162] The first inner wall portion 61a and the second inner wall portion 61b are connected by a curved portion extending in the vertical direction. Therefore, the inner cylindrical portion 61 becomes a complete cylinder.
[0163] The outer cylindrical portion 62 has 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.
[0164] The first outer wall portion 62a is a wall portion extending along the Y direction, and is a flat plate with the thickness direction facing the X direction.
[0165] The second outer wall portion 62b is a wall portion extending along the X direction, and is a flat plate with the thickness direction facing the Y direction.
[0166] A gap is formed between the first outer wall portion 62a and the second outer wall portion 62b. Therefore, the outer cylindrical portion 62 is not completely cylindrical, but rather generally cylindrical.
[0167] In addition, in relation to the joint 21h formed on the Y-direction side of the first shielding member 21, the second outer sidewall portion 62b on the Y-direction side is separated into two parts.
[0168] The outer cylindrical portion 62 is connected to the inner cylindrical portion 61 via multiple folded portions 63a and 63b.
[0169] Specifically, the first outer sidewall portion 62a is connected to the first inner sidewall portion 61a via a first fold-back portion 63a. The second outer sidewall portion 62b is connected to the second inner sidewall portion 61b via a plurality of second fold-back portions 63b.
[0170] The second outer side wall portion 62b is disposed on the outer side of the elastic support portion 70. Thus, the second outer side wall portion 62b blocks the gap formed around the elastic support portion 70. The second outer side wall portion 62b is sometimes referred to as the closed wall portion 62b.
[0171] Alternatively, a vertical gap is formed between the cylindrical portion 51 of the fixed portion 50 and the inner cylindrical portion 61 of the movable portion 60. Furthermore, the first outer side wall portion 62a and the second outer side wall portion 62b constituting the outer cylindrical portion 62 function to block 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 aforementioned gap formed around the elastic support portion 70 can be considered as part of the gap between the cylindrical portion 51 and the inner cylindrical portion 61.
[0172] (Against plate section 64b)
[0173] The movable part 60 has multiple (four) opposing plate parts 64b.
[0174] The plurality of opposing plate portions 64b have a plurality (two) opposing plate portions 64b on the +Y direction side and a plurality (two) opposing plate portions 64b on the -Y direction side. Hereinafter, unless otherwise specified, they are simply referred to as opposing plate portions 64b.
[0175] The opposing plate portion 64b is a flat plate with its thickness direction facing up and down.
[0176] The opposing plate portion 64b is approximately rectangular with the X direction as its length direction and the Y direction as its short side direction.
[0177] The opposing plate portion 64b is connected to the inner cylindrical portion 61 via a bend 65b that is bent at approximately 90 degrees. Specifically, the opposing plate portion 64b is configured to extend from the second inner wall portion 61b of the inner cylindrical portion 61.
[0178] The opposing plate portion 64b is located on the outer side (outer side in the Y direction) relative to the inner cylindrical portion 61.
[0179] The opposing plate portion 64b comes into contact with the second shielding member 22, which is the "object of contact". That is, the opposing plate portion 64b functions as a contact portion 64b that contacts the second shielding member 22, which is the "object of contact". As a result, the first shielding member 21 and the second shielding member 22 are electrically connected.
[0180] The opposing plate portion 64b contacts the second shielding member 22 on its upper surface. The upper surface of the opposing plate portion 64b is flat. The opposing plate portion 64b is sometimes referred to as the contact plane portion 64b.
[0181] The contact portion 64b contacts the second shielding member 22 in a downward direction under the force from the second shielding member 22. Therefore, due to the force from the second shielding member 22, the movable portion 60 easily displaces downward. Because the movable portion 60 displaces elastically, the contact pressure is ensured by the elastic restoring force.
[0182] A second folded section 63b is provided between two adjacent opposing plate sections 64b in the X direction.
[0183] In addition, in contrast to the plurality of opposing plate portions 64b arranged in the X direction, second folded portions 63b are also provided on the +X direction side and the -X direction side, respectively.
[0184] (Elastic support part 70)
[0185] The elastic support 70 is composed of a pair of springs 71.
[0186] The pair of spring portions 71 consists 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. In addition, the X direction is the length direction of the first shielding member 21.
[0187] The spring portion 71 on one side of the X direction and the spring portion 71 on the other side of the X direction have a structure that is symmetrical with respect to the X direction. Hereinafter, unless otherwise specified, they will be referred to simply as the spring portion 71.
[0188] The spring section 71 is equipped with a pair of spring plates 72.
[0189] A pair of spring plates 72 consists of a spring plate 72 on one side of the Y direction and a spring plate 72 on the other side of the Y direction.
[0190] A pair of spring sheets 72 have a shape that is symmetrical with respect to the Y direction. Hereinafter, unless otherwise specified, they will be referred to simply as spring sheets 72.
[0191] The spring plate 72 connects the fixed part 50 and the movable part 60.
[0192] Specifically, the spring plate 72 connects the cylindrical portion 51 of the fixed portion 50 and the inner cylindrical portion 61 of the movable portion 60.
[0193] More specifically, the spring plate 72 connects the second wall portion 51b of the fixed portion 50 and the second inner wall portion 61b of the movable portion 60.
[0194] Viewed from above, the spring plate 72 is positioned at a point overlapping the inner cylindrical portion 61 of the movable portion 60.
[0195] The spring sheet 72 has a side extension 72a extending in a direction away from the beginning of the spring sheet 72 (inner side in the X direction), a other side extension 72b extending in a direction close to the end of the spring sheet 72 (outer side in the X direction), and a folded-back portion 72c connecting the side extension 72a and the other side extension 72b. The folded-back portion 72c extends in a generally arc shape.
[0196] One side extension 72a extends in an upward inclined direction away from the beginning of the spring sheet 72 (inside in the X direction).
[0197] The other extension 72b extends in an upward inclined direction toward the end of the spring sheet 72 (outer in the X direction).
[0198] like Figure 6 As shown, the fixing part 50 has a first fixing side abutment part 56 and a pair of second fixing side abutment parts 57. The first fixing side abutment part 56 has a first bending part 56a that bends inward (inward in the X direction). The pair of second fixing side abutment parts 57 each have a second bending part 57a that bends inward (inward in the X direction).
[0199] On the other hand, the movable part 60 has a movable side abutment part 66. The movable side abutment part 66 has a bent part 66a that bends inward (inward in the X direction).
[0200] When the movable part 60 is displaced in the downward direction (-Z direction), the movable side abutting part 66 abuts against the first fixed side abutting part 56. This restricts the movable part 60 from excessive downward displacement.
[0201] Thus, the first shielding component 21 has lower limiting mechanisms 56 and 66, which limit the movable part 60 from excessive displacement in the direction (-Z direction) toward the first mounting object 91 (mounting object).
[0202] When the movable part 60 is displaced in the Y direction, the movable side abutting part 66 abuts against either of the pair of second fixed side abutting parts 57. This restricts the movable part 60 from excessive displacement in the Y direction.
[0203] Therefore, the first shielding component 21 has Y-direction limiting mechanisms 57 and 66, which limit the movable part 60 from excessive displacement in the Y direction relative to the fixed part 50.
[0204] In particular, since each of the abutting portions 56, 57, and 66 has a bent portion 56a, 57a, and 66a, even if the movable portion 60 is displaced relative to the fixed portion 50 in the X direction, the movable side abutting portion 66 can reliably abut against the fixed side abutting portions 56 and 57.
[0205] In addition, Figure 6 In the shown state, the elastic support 70 does not deform, and the movable part 60 does not displace downwards. Therefore, even if the movable part 60 displaces in the Y direction from this state, the movable side abutment 66 does not abut against the second fixed side abutment 57. However, in the connection state envisioned in this embodiment, the movable part 60 displaces downwards and becomes part of the movable side abutment 66, which is housed between the pair of second fixed side abutment parts 57.
[0206] (Second shielding component 22)
[0207] The second shielding component 22 is manufactured by punching, bending, or performing other processes on a piece of conductive sheet. Therefore, a portion of the second shielding component 22 is not connected to other portions via a joint.
[0208] The second shielding component 22 is cylindrical (specifically, square cylindrical).
[0209] The second shielding component 22 has a roughly symmetrical structure in both the X and Y directions.
[0210] like Figure 4 As shown, on the Y-direction side (+Y-direction side) of the cylindrical second shielding member 22, a joint portion 21h is formed to join the ends of the plates constituting the second shielding member 22 to each other. The joint portion 21h is located at the center position in the X-direction of the second shielding member 22.
[0211] The second shielding member 22 has a fixing part 80 that is fixed to the second base plate 92, which is the "second mounting object". Unlike the first shielding member 21, the second shielding member 22 does not have a movable part or an elastic support part.
[0212] (Fixed part 80)
[0213] The fixing part 80 includes the fixing shielding part 81.
[0214] The fixed shielding part 81 has 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.
[0215] The first wall portion 81a is a wall portion extending along the Y direction, and is a flat plate with the thickness direction facing the X direction.
[0216] The second wall portion 81b is a wall portion extending along the X direction, and is a flat plate with the thickness direction facing the Y direction.
[0217] Thus, the fixed shielding portion 81 is formed in a cylindrical shape (specifically, a square cylindrical shape). The fixed shielding portion 81 is sometimes referred to as the cylindrical portion 81. The first wall portion 81a and the second wall portion 81b are connected via a curved portion extending in the vertical direction. Therefore, the cylindrical portion 81 becomes a completely cylindrical shape.
[0218] The fixing part 80 has multiple connecting parts 82a, 82b, and 82c.
[0219] Each of the plurality of connecting portions 82a, 82b, 82c is bonded to a pad (not shown) formed on the upper surface of the first substrate 91 by soldering. Thus, the second shielding member 22 is mounted on the second substrate 92, and the second shielding member 22 and the second substrate 92 are electrically connected.
[0220] The plurality of connecting portions 82a, 82b, 82c have a plurality of first connecting portions 82a protruding from the first wall portion 81a.
[0221] The multiple connecting portions 82a, 82b, and 82c have multiple second connecting portions 82b protruding from the second wall portion 81b.
[0222] The multiple connecting portions 82a, 82b, and 82c are provided with multiple (four) third connecting portions 82c that oriented the thickness direction of the plate towards the vertical direction. The third connecting portions 82c are connected to the second wall portion 81b via a bending portion.
[0223] (Against-facing plates 84a, 84b)
[0224] The fixing part 80 has multiple opposing plate parts 84a and 84b.
[0225] The plurality of opposing plate portions 84a and 84b are composed of a plurality of first opposing plate portions 84a provided at positions corresponding to the first wall portion 81a and a plurality of second opposing plate portions 84b provided at positions corresponding to the second wall portion 81b.
[0226] The opposing plates 84a and 84b are flat plates with their thickness direction facing the Z direction.
[0227] The opposing plate portions 84a and 84b are connected to the cylindrical portion 81 via bent portions 85a and 85b that are bent at approximately 90 degrees.
[0228] The first opposing plate portion 84a is located on the outer side in the Y direction relative to the fixed shield portion 81.
[0229] The second opposing plate portion 84b is located on the outer side in the X direction relative to the fixed shield portion 81.
[0230] That is, the multiple opposing plate portions 64b are located on the outer side relative to the fixed shield portion 81. Here, "outer side" refers to the side away from the shielded objects 11 and 12.
[0231] The second opposing plate portion 84b contacts the contact portion 64b (opposing plate portion 64b) of the first shielding member 21. That is, the second opposing plate portion 84b functions as the contact portion 84b of the second shielding member 22.
[0232] The second opposing plate portion 84b contacts the upper surface of the opposing plate portion 64b of the first shielding member 21 on its lower surface. Since the plate surface becomes the contact area, it is easy to perform electroplating on the contact area.
[0233] The lower surface of the second facing plate portion 84b is a plane with the normal direction pointing downwards. The second facing plate portion 84b is sometimes referred to as the contact plane portion 84.
[0234] The second opposing plate portion 84b contacts the opposing plate portion 64b of the first shielding member 21 in a contact area extending along the X direction. Specifically, this contact area is a rectangular contact area with the X direction as its length direction and the Y direction as its short side direction.
[0235] The first opposing plate portion 84a is not configured to contact the first shielding component 21.
[0236] The first facing plate portion 84a faces the first folded-back portion 63a in the vertical direction.
[0237] <Effects>
[0238] Next, the effects of this implementation method will be explained.
[0239] In this embodiment, the shielding member 21 has a contact portion 64b that contacts the contact object 22. Therefore, the shielding member 21 and the contact object 22 can be electrically connected.
[0240] However, if the contact portion 64b is composed of a plurality of convex contact portions arranged along the length direction (X direction) of the shielding member 21, a narrow gap is formed between adjacent convex contact portions in the shielding length direction. This gap leads to a reduction in shielding performance. Although increasing the number of convex contact portions to reduce the spacing between adjacent convex contact portions is considered, it is difficult to make the protrusion of the plurality of convex contact portions uniform, and some convex contact portions become non-contact.
[0241] Therefore, in this embodiment, the contact portion 64b is configured to contact the contact object 22 in a contact area extending along the length direction (X direction) of the shielding member 21.
[0242] Therefore, compared to the contact portion 64b being composed of a plurality of convex contact portions arranged along the length direction (X direction) of the shielding member 21, it is possible to suppress the formation of a gap extending along the shielding length direction (X direction) between the shielding member 21 and the contact object 22. As a result, a shielding member 21 with high shielding performance can be achieved.
[0243] In addition, in this embodiment, the contact portion 64b is a contact plane portion 64b that is perpendicular to the connection direction (Z direction) with the contact object 22.
[0244] Therefore, even if the contact object 22 is offset in a direction perpendicular to the connection direction (Z direction), a proper contact state can be achieved.
[0245] In this embodiment, the shielding member 21 includes a fixing part 50 fixed to the mounting object 91 and a movable part 60 that can be displaced relative to the fixing part 50 along the connection direction (Z direction). The movable part 60 has a contact part 64b.
[0246] Therefore, by displacing the movable part 60 along the connection direction (Z direction), it is possible to absorb the positional shift of the contact object 22 in the connection direction (Z direction).
[0247] However, if the contact portion 64b is configured to contact the contact object 22 in a contact area extending along the length direction (X direction) of the shielding member 21, then if the contact object 22 is tilted along the length direction (X direction) relative to the desired state, the contact portion 64b and the contact object 22 may not reach an appropriate contact state.
[0248] Therefore, in this embodiment, the movable part 60 having the contact part 64b can tilt relative to the fixed part 50 along the length direction (X direction).
[0249] Therefore, even when the contact object 22 is tilted in the length direction (X direction) relative to the desired state, it is possible to achieve a proper contact state between the contact portion 64b and the contact object 22.
[0250] In addition, in this embodiment, the shielding member 21 includes shielding portions 61 and 62 that shield the objects 11 and 12 from a direction perpendicular to the connection direction (Z direction). The shielding portions 61 and 62 have a wall portion 61 whose thickness direction is perpendicular to the connection direction.
[0251] Therefore, the wall portion 61 can shield the objects 11 and 12 from a direction perpendicular to the connection direction (Z direction).
[0252] In addition, in this embodiment, the contact plane portion 64b is connected to the wall portion 61 via a curved portion 65b extending in a direction perpendicular to the connection direction (Z direction).
[0253] Therefore, the shielding member 21, which has a wall portion 61 and a contact plane portion 64b, can be realized with a simple structure.
[0254] However, when only the shielding member 21 (first shielding member 21) mounted on the first substrate 91 is used to shield the shielding objects 11 and 12 disposed between the first substrate 91 and the second substrate 92, the contact object of the first shielding member 21 becomes the second substrate 92. Therefore, in order to form a contact area extending along the length direction (X direction) of the shielding member 21, it is necessary to form a contact portion (pad) extending along the length direction (X direction) of the shielding member 21 on the surface of the second substrate 92. However, this reduces the degree of freedom in the wiring layout of the second substrate 92.
[0255] Therefore, this embodiment relates to a pair of shielding members 21 and 22 for shielding objects 11 and 12. The pair of shielding members 21 and 22 includes a first shielding member 21 mounted on a first mounting object 91, which is a first substrate 91, and a second shielding member 22 mounted on a second mounting object 92, which is a second substrate 92. Moreover, the first shielding member 21 has a first contact portion 64b that contacts the second shielding member 22, and the first contact portion 64b contacts the second shielding member 22 in a contact area extending along the length direction (X direction) of the first shielding member 21.
[0256] Therefore, since it is not necessary to form a contact portion (pad) extending along the length direction (X direction) of the shielding member 21 on the surface of the second substrate 92, the degree of freedom of wiring layout of the second substrate 92 can be ensured.
[0257] The preferred embodiments of this disclosure have been described above, but this disclosure is not limited thereto.
Claims
1. A shielding component for shielding an object. The shielding component has a contact portion that contacts the object being contacted. The contact portion is configured to contact the object being contacted in a contact area extending along the length direction of the shielding member.
2. The shielding component according to claim 1, wherein, The contact portion is a contact plane portion perpendicular to the connection direction with the contact object.
3. The shielding component according to claim 1, wherein, The shielding component includes: The fixing part is fixed to the object to be installed; and The movable part is capable of displacement relative to the fixed part along the connection direction with the contacting object. The movable part has the contact part.
4. The shielding component according to claim 1, wherein, The shielding component includes: The fixing part is fixed to the object to be installed; and The movable part is capable of tilting and moving relative to the fixed part along its length. The movable part has the contact part.
5. The shielding component according to claim 2, wherein, The shielding component includes a shielding portion that shields the object from the contact object in a direction perpendicular to the connection direction with the contact object. The shielding portion has a wall portion, the thickness direction of which is oriented perpendicular to the connection direction with the contacting object. The contact plane portion is connected to the wall portion via a curved portion extending in a direction perpendicular to the connection direction with the contact object.
6. The shielding component according to claim 3 or 4, wherein, The movable part does not have a portion that is fixed to the shielded object.
7. The shielding component according to claim 3 or 4, wherein, The movable part does not have a portion that physically engages with the shielded object.
8. The shielding component according to claim 1, wherein, The shielding component does not have a portion that is fixed to the object being shielded.
9. The shielding component according to claim 3 or 4, wherein, The movable part does not have a portion fixed to the shielded object, while the fixed part has a portion fixed to the shielded object.
10. The shielding component according to claim 1, wherein, The contact portion is configured to generate contact pressure in the direction of connection with the contact object, which is generated by contact with the contact object.
11. A pair of shielding components for shielding an object to be shielded. The shielding component includes: A first shielding component is mounted on a first mounting object that serves as a first substrate; and The second shielding component is installed on the second mounting object, which serves as the second substrate. The first shielding component has a first contact portion that contacts the second shielding component. The first contact portion is configured to contact the second shielding component in a contact area extending along the length direction of the first shielding component.
Citation Information
Patent Citations
JP2021096933A