KR200491343Y1 - Electromagnetic interference (EMI) shielding gaskets - Google Patents

Abstract

According to various aspects, preferred embodiments of an electromagnetic interference (EMI) shielding gasket are disclosed. In a preferred embodiment, the EMI shielding gasket includes a base, at least one finger extending outwardly from the base in a first direction (eg, spring fingers, etc.), and at least one clip extending outwardly from the base in a second direction. It includes. The finger includes spaced ends separated by the slit extending therebetween as it includes at least one slit extending along the finger.

Description

Electromagnetic interference (EMI) shielding gaskets

The present invention mainly relates to an electromagnetic interference (EMI) shielding gasket.

This section provides background information related to the present design, which is not necessarily prior art.

A common problem in the operation of electronic devices is the generation of electromagnetic radiation within the electronic circuits of the equipment. Such radiation may cause electromagnetic interference (EMI) or radio frequency interference (RFI), which may interfere with the operation of certain adjacent electronic devices. Without proper isolation, EMI / RFI disturbances can cause significant signal degradation or complete loss, making electronic equipment inefficient or infeasible.

A common solution to improve EMI / RFI interference is through the use of shielding materials that can absorb, reflect and / or divert electromagnetic interference energy. These shields are typically used to confine electromagnetic / high frequency disturbances to their source and isolate other equipment close to the center of the electromagnetic / high frequency source. For example, substrate mount shields are widely used to protect sensitive electronic equipment from electromagnetic interference between systems and in systems and to reduce unwanted electromagnetic radiation from noisy integrated circuits (ICs).

Within the specification, the term "EMI" should generally be considered to include or refer to electromagnetic emission and radio frequency emission, and the term "electromagnetic" generally refers to including or referring to electromagnetic waves and radio frequency from external and internal sources. Should be considered. Thus, the term shielding, as used within the specification, substantially mitigates (or limits) electromagnetic and / or radio frequency by absorbing, reflecting, blocking, and / or dedicated to, or some combination thereof, for example, complying with government regulations. And / or to no longer interfere with the internal functioning of the electronic component system.

This section provides a general summary of the invention and does not comprehensively disclose its full scope or features.

The problem to be solved by the present invention is to provide an electromagnetic interference (EMI) shielding gasket capable of improving EMI shielding effectiveness.

According to various aspects, preferred embodiments of an electromagnetic interference (EMI) shielding gasket are disclosed. In one preferred embodiment, the EMI shielding gasket generally comprises a base, at least one finger (eg, spring finger, etc.) extending outward in the first direction from the base, and outwardly extending in a second direction from the base. It contains at least one clip. The finger includes at least one slit extending along the finger, and the finger includes spaced ends separated according to the slit extending therebetween.

Further areas of applicability will become apparent from the description provided herein. The above description and specific examples of this solution are for illustrative purposes only and do not limit the scope of the present invention.

Provides an electromagnetic interference (EMI) shielding gasket that can improve EMI shielding effectiveness.

1 and 2 are top and bottom perspective views, respectively, of an electromagnetic interference (EMI) shielding gasket according to a preferred embodiment.
3, 4, 5, and 6 are top, bottom, side, and side cross-sectional views of the EMI shielding gaskets shown in FIGS. 1 and 2, respectively.
7 is an exploded perspective view showing the EMI shielding gasket of FIG. 1 located between upper and lower (or first and second) members or components according to a preferred embodiment.
8 shows a preferred embodiment of a method for assembling the EMI shielding gasket of FIG. 1 between the upper and lower members shown in FIG.
9 is a perspective view of the EMI shielding gasket of FIG. 8 without the upper and lower members and having a configuration in which the gasket is folded, pressed and contacted.
In the drawings, corresponding member numbers indicate corresponding parts.

Preferred embodiments will be described more fully with reference to the accompanying drawings.

Preferred embodiments of the electromagnetic interference shielding gasket (EMI, for example, the spring finger clip-on gasket shown in FIGS. 1 to 6) are disclosed. EMI shielding gaskets can operate gaskets to provide EMI shielding to one or more components within a defined space between upper and lower (or first and second) members (eg, top and bottom plates or substrates). So as to be assembled between the upper and lower members.

In a preferred embodiment, the EMI shielding gasket comprises a plurality of spaced apart spring fingers (eg, elastic and / or flexible finger portions, etc.) along the top of the gasket and a plurality of spaced apart clips along the bottom of the gasket. Includes. Therefore, the EMI shielding gasket can also be referred to as a spring gasket or a spring finger clip-on gasket.

The spring fingers can be configured to make electrical contact with corresponding electro-conductive parts of the upper member. The clips may be configured to contact corresponding parts of the lower member to mount the gasket to the lower member. The gasket can be compressed between the upper and lower members, which can help create good pressure-enhanced electrical contact between the gasket and upper and lower members. The spring fingers are configured such that mechanical contact between the spring fingers and the upper member is made with a reduced non-contact gap size to improve EMI shielding effectiveness (eg, increase, maximize, etc.). In a preferred embodiment, the spring finger comprises a slit along the upper portion of the spring finger. The insertion of the slit into the spring finger reduces the size of the non-contact gap between the spring finger and the upper member. The contact between the spring finger and the upper member is made along the edge of the spring finger and the edge of the slit, so that the size of the non-contact gap can be significantly reduced. As a result, the reduced non-contact gap size can significantly improve EMI shielding effectiveness.

Advantageously, the clips can mount the gasket to the lower member and make electrical contact without the use of an electro-conductive adhesive tape. The use of electro-conductive adhesive tapes for mounting gaskets tends to be a relatively complicated and costly process. Moreover, the electrical properties of the electro-conductive adhesive tape may degrade over time when exposed to sufficiently high temperatures, high humidity, and / or corrosive materials. When the electrical properties of the tape deteriorate, electrical and physical contact between the gasket and the mounting surface may also deteriorate.

As disclosed herein, the clips can effectively replace the application of an electro-conductive adhesive tape to provide good electrical contact between the gasket and the underlying member while eliminating the cost of such tape. For example, the clips are configured to create a connection or assembling force between the gasket and the lower member, which can securely hold the gasket on the lower member and effectively replace the electro-conductive adhesive tape. The clips can be configured such that the contact between the gasket and the lower member is mostly uniform and free of clearance, which in turn ensures good or normal electrical contact between the gasket and the lower member and provides good EMI shielding effectiveness.

If there is no slit in the spring finger, contact between the spring finger and the upper member is created only along the edge of the spring finger. In some cases, the non-contact gap size may be approximately equal to the width of the spring finger. In comparison, the insertion of the slit or slot into the spring finger, as disclosed herein, is such that the contact between the spring finger and the upper member is made along the edge of the spring finger and the edge of the slit, so that the non-contact gap between the spring finger and the upper member Can be reduced. This in turn allows for a significant reduction in the size of the non-contact gap. In addition, the reduced non-contact gap size can significantly improve EMI shielding effectiveness compared to gaskets that include spring fingers without such slots or slits.

Referring to the drawings, FIGS. 1-6 illustrate an EMI shielding spring finger clip-on gasket (100, broadly, a gasket or shielding member) according to a preferred embodiment for implementing one or more aspects of the present invention. 7 and 8, the gasket 100 includes upper and lower member (or first and second) members 104, 108, for example, upper and lower plates or substrates (FIGS. 7 and 8). ), Etc.).

When assembled or installed between upper and lower members 104, 108, the gasket 100 is an interior space or passageway 112, which is defined by the gasket 100 and the upper and lower members 104, 108. 8) to provide EMI shielding and / or grounding for one or more components within (eg, one or more electrical components on a printed circuit board (PCB)). For example, a printed circuit board can be located within or close to the interior space or passageway 112 so that one or more components on the printed circuit board are within or close to the inner circumference defined by the gasket 100. Is placed.

With continued reference to Figures 1-6, the gasket 100 has a generally circular ring or closed loop shape with an opening 116 in the center. The opening 116 is configured to allow components such as electromagnetic components, printed circuit board components, and / or other components shielded and / or grounded by the gasket 100 to pass there (eg For example, in size, shape, location, etc.). In other preferred embodiments, the gasket may have other configurations including open shapes such as linear, or partially elliptical concentric arcs and partial squares.

The gasket 100 includes a plurality of spring fingers 120 (eg, resilient and / or flexible finger elements, etc.) spaced along the upper portion of the gasket 100. The spring fingers 120 are configured to make electrical contact with corresponding electro-conductive parts of the upper member 104. The gasket 100 further includes a plurality of spaced apart clips or tabs 124 along the lower portion of the gasket 100 (eg, attachment members, clasp members, etc.). The clips 124 may be configured to contact corresponding parts of the lower member 108 to mount the gasket 100 to the lower member 108. The gasket 100 may also be referred to as a spring gasket or a spring finger clip-on gasket.

The gasket 100 includes slots or slits 128 (a wide opening) defined and / or disposed between the spaced spring fingers 120. In preferred embodiments, the gasket 100 includes twelve slots 128 equally spaced around it along the gasket 100. The gasket 100 also includes twelve fingers 120 spaced around the outer diameter (outer circumference of the broad) of the base or bottom 140 of the gasket 100 and equally spaced around it. In other preferred embodiments, the gasket may have other configurations with more or less than 12 fingers and / or one or more fingers in different locations.

Each spring finger 120 includes a slit or slot 132 (broad opening) along the upper portion of the spring finger 120. The slit 132 extends from the open end to the closed end along the upper portion of the spring finger 12. The slit 132 extends between two spaced ends 136 of the spring finger 120. In other words, the spring finger 120 has two ends 136 separated or spaced by the slit 132.

The insertion of the slit 132 into the spring finger 120 reduces the size of the non-contact gap between the spring finger 120 and the upper member 104. When the gasket 100 is compressed between the upper and lower members 104 and 108 (FIG. 8) (FIG. 9), the spring fingers 120 and the upper members 104 are the spring fingers ( The outer edge of 120) is contacted along the inner edge of the slits 132, which causes the non-contact gap size to be significantly reduced. As a result, the reduced non-contact gap size can significantly improve EMI shielding effectiveness.

Each spring finger 120 extends outwardly (eg, upwards, etc.) from the base or bottom 140 of the gasket 100. 6, each spring finger 120 includes a linear portion 144 connected to the base 140 of the gasket 100 by a first connection portion 148. In this preferred embodiment, the first connecting portion 148 is curved, angled, and / or acute (eg, about 30 degrees, etc.) between the base 140 and the linear portion 144. define.

The linear portion 144 extends upward to the second connection portion 152. Accordingly, the linear portion 144 extends between the first and second connecting portions 148 and 152.

The second connection portion 152 is connected to the spaced end or contact portion 136 of the spring finger 120. In this preferred embodiment, the second connection 152 is curved, angled, and / or obtuse (eg, about 120 degrees) between the linear portion 144 of the finger and the contact portion or end 136. And so on). In the uncompressed configuration shown in FIG. 6, the contact or ends 136 of the finger extend or tilt toward the base 140 (eg, downward, etc.).

Each clip or tab 124 extends outwardly from the base 140 of the gasket 100 (eg, the lower side, etc.). 6, each clip or tab 124 includes a linear portion 156 connected to the base 140 of the gasket 100 by a third connection portion 160. In the present preferred embodiment, the third connecting portion 160 is curved, angled, and / or acute (eg, about 60 degrees, etc.) between the base 140 and the linear portion 156. define.

The linear portion 156 extends downward to the fourth connection portion 164. Accordingly, the linear portion 156 extends between the third and fourth connecting portions 160 and 164.

The fourth connection portion 164 is connected to the contact portion or end portion 168 of the clip or tab 124. In this preferred embodiment, the fourth connection 164 is curved, angled, and / or obtuse (eg, between the linear portion 156 of the clip or tab 124 and the contact portion or end 168). For example, about 135 degrees, etc.).

As shown in Fig. 4, the present preferred embodiment of the gasket 100 is around the inner diameter (inner circumference of the broad) of the base 140 of the gasket 100, and four equally spaced circumferences along it. Includes clips 124. In other preferred embodiments, the gasket may have other configurations with more or less than four clips and / or one or more clips in different locations.

The clips 124 are configured to create a connection or assembly force between the gasket 100 and the lower member 108. The clips 124 are configured to be located opposite the inner sidewall 172 of the lower member 108 when the gasket 100 is positioned above the lower member 108.

As indicated by the arrow 176 in FIG. 8, the gasket 100 can be pushed down against the lower member 108, so that the clips or tabs 124 are the inner sidewall 172 of the lower member. To contact. The inner side wall 172 defines an opening (eg, a circular hole, etc.) penetrating the lower member 108. As the gasket 100 moves down, the fourth connections 164 of the clips or tabs 124 urge the clips or tabs 124 of the gasket outward from the inner sidewall 172. It can operate as a camming surface. The sliding contact of the fourth connections 164 along the inner sidewall 172 of the lower member 108 bends, deforms, or moves the clips or tabs 124 of the gasket from its original or initial position. Or, it can be rotated or reciprocated. The gasket's clips or tabs 124 may generally be flexible in nature, returning the gasket's clips or tabs 124 to their original or initial position, which in turn results in the gasket's clips or tabs 124 and the bottom. A gripping force or fastening force between the members 108 is created.

In various embodiments, the gasket 100 may be formed as a single component, either integrally or as one, by dipping, folding, and / or bending. In this example, the gasket 100 may be integrally formed, but is not required in all embodiments.

A wide range of materials, preferably flexible, flexible and electrically-conductive materials, can be used with the gaskets disclosed herein (eg, gasket 100, etc.). In a preferred embodiment, the gasket 100 is formed of a flexible elastically flexible material, characterized in that it has a sufficient elasticity index, so that the fingers 120 and clips 124 of the gasket 100 are unloaded. It can be replaced by the force from to the loading position and returned to the loading position by removing this force without exceeding the yield point of the material. As a further example, the gasket 100 may be formed of a beryllium copper alloy finished (eg, tin plating, etc.) for compatibility to generate current. Other suitable materials, among others, phosphor bronze, copper-coated steel, brass, Monel, silver, beryllium copper alloys, magnesium alloys, aluminum and aluminum alloys, steel, stainless steel, other copper based alloys can also be used.

According to various aspects, preferred embodiments of the EMI shielding gasket are disclosed. In one preferred embodiment, the EMI gasket generally comprises a base, at least one finger extending from the base outward in the first direction (eg, a spring finger, etc.) and at least one extending in the second direction from the base. Includes clips. The finger includes spaced ends separated by the slit extending therebetween as it includes at least one slit extending along the finger.

The base may include an inner circumference and an outer circumference. The at least one finger may include a plurality of spring fingers along the outer circumference of the base. The at least one clip may include a plurality of clips spaced along the inner circumference of the base.

The base can be circular and includes an inner diameter and an outer diameter. The at least one finger may include a plurality of spring fingers spaced around the outer diameter of the base. The at least one clip may include a plurality of clips spaced apart along the inner diameter of the base.

The base may include an inner circumference and an outer circumference. The at least one finger may include a plurality of spring fingers that are uniformly spaced around the outer circumference of the base and extend upward therefrom. The at least one clip may include a plurality of clips uniformly spaced and extended downward along the inner circumference of the base.

The gasket may generally have a circular ring shape with a central opening.

The gasket can be configured to be compressed between upper and lower members, thereby making electrical contact between the upper member and the gasket along the outer edge of the finger and the edge of the slit.

The gasket is an internal space defined by the EMI gasket and the top and bottom members when the gasket is compressed between the top and bottom members such that the finger and clip are in electrical contact with the corresponding electro-conductive portions of each of the top and bottom members. It can be configured to provide EMI shielding of one or more components within.

The gasket may be configured to be compressed between the upper and lower members. The fingers can be extended upward from the base of the gasket and configured to be elastically compressed towards the base so that the ends of the fingers are in electrical contact with the corresponding electrical conduction of the upper member. The clip can extend downward from the base of the gasket and is configured to be pulled into contact with the inner sidewall of the lower member.

The finger may be configured to be in electrical contact with a corresponding electrically conductive portion of the upper member in the first direction. The clip may be configured to electrically contact and engage the inner sidewall of the lower member in the second direction, generally perpendicular to the first direction.

The at least one finger includes a plurality of spring fingers. The gasket may include a plurality of slots defining the plurality of spring fingers. Each slot can extend between a pair of corresponding spring fingers.

The gasket may include a resiliently flexible electro-conductive material.

The finger may include a linear portion, a first connection portion between the base and the linear portion, and a second connection portion between the linear portion and the spaced ends. The first connection portion may define a curved, angled, and / or acute angle between the base and the linear portion of the finger. The linear portion may extend upward from the first connection portion to the second connection portion. The second connection portion may define a curved, angled, and / or obtuse angle between the linear portion of the finger and the spaced ends.

The clip may include a linear portion, a third connection portion between the base and the linear portion of the clip, and a fourth connection portion between the linear portion and an end of the clip. The third connecting portion may define a curved, angled, and / or acute angle between the base and the linear portion of the clip. The linear portion may extend outwardly from the third connection portion to the fourth connection portion. The fourth connecting portion may define a curved, angled, and / or obtuse angle between the linear portion and the end portion of the clip. The fourth connection portion of the clip may be configured to act as a camming surface that urges the clip to move outward from the inner sidewall when the fourth connection portion slides along the inner sidewall. The clip can be configured to have elasticity to urge the clip back to its original position, thereby creating a connection force between the clip and the inner sidewall.

The gasket may be configured to be compressed between the upper and lower members. The base may be circular and include an inner diameter and an outer diameter. The at least one finger may include a plurality of spring fingers uniformly spaced around the outer diameter of the base. The at least one clip may include a plurality of clips uniformly spaced around the inner diameter of the base. The spring fingers may extend upward from the base of the gasket. As the spring fingers can be configured to be elastically compressed towards the base, the ends of the spring fingers are in electrical contact with the corresponding electrical conductors of the upper member. The clips may extend downward from the base of the gasket. The clips may be configured to be pulled into contact with the inner sidewall of the lower member. Each spring finger may include a linear portion, a first connection portion between the base and the linear portion, and a second connection portion between the linear portion and spaced ends. The first connection portion may define a curved, angled, and / or acute angle between the base portion and the linear portion of the spring finger. The linear portion may extend upward from the first connection portion of the spring finger to the second connection portion. The second connection portion may define a curved, angled, and / or obtuse angle between the linear portion of the spring finger and the spaced ends. Each clip may include a linear portion, a third connection portion between the base and the linear portion of the clip, and a fourth connection portion between the linear portion and the end portion of the clip. The third connecting portion may define a curved, angled, and / or acute angle between the base and the linear portion of the clip. The linear portion may extend downward from the third connection portion of the clip to the fourth connection portion. The fourth connecting portion may define a curved, angled, and / or obtuse angle between the linear portion and the end portion of the clip. The fourth connection portion of the clip may be configured to act as a camming surface that urges the clip to move outward from the inner sidewall when the fourth connection portion is in sliding contact along the inner sidewall. The clip can be configured to have elasticity to urge the clip back to its original position, thereby creating a connection force between the clip and the inner sidewall.

Preferred embodiments can provide one or more (but not all, but not all) of the following advantages or features. For example, the clips can mount the gasket to the lower member and make electrical contact without the use of an electro-conductive adhesive tape. The use of electro-conductive adhesive tapes for mounting gaskets tends to be a relatively complicated and costly process. Over time, exposure to sufficiently high temperatures, high humidity, and / or corrosive materials can degrade the electrical properties of the electro-conductive adhesive tape. When the electrical properties of the tape deteriorate, electrical and physical contact between the gasket and the mounting surface may also deteriorate. Thus, using the clips in place of the electro-conductive adhesive tape for mounting the gasket can eliminate potential issues associated with the use of the electro-conductive adhesive tape.

If the clips are used to mount the gasket to the lower member, the clips can also form a good electrical contact between the gasket and the lower member. This will eventually help improve or provide good EMI shielding effectiveness.

Additionally, the spring fingers of the gasket can be configured such that good electrical contact is formed between the spring fingers and the upper member with reduced non-contact clearance size. Consequently, the reduced non-contact gap size can help improve the EMI shielding effectiveness of the gasket.

In preferred embodiments, the gasket has a ring or closed loop configuration (eg, round, rectangular, oval, other ring or closed loop shapes or combinations thereof, etc.). However, the gasket may also have other configurations including open shapes such as linear, or partially elliptical concentric arcs and partial squares. In addition, other aspects may vary in other preferred embodiments, such as material thickness, loop contour, dimensions, 12 or more spring fingers, 4 or more clips, other for the clips and / or spring fingers. Bending angle and so on.

Preferred embodiments are provided to enable the present disclosure to fully convey the scope to those skilled in the art. Many specific details are presented to provide an understanding of embodiments of the present disclosure with examples of specific configurations, devices, and methods. It is apparent to those skilled in the art that the specific details need not be employed, and that the exemplary embodiments are embodied in many different forms and should not limit the scope of the present disclosure. In some exemplary embodiments, well-known procedures, well-known device structures, and well-known techniques are not described in detail. Additionally, the advantages and improvements achieved with one or more preferred embodiments of the present disclosure are provided for illustrative purposes only and do not limit the scope of the present disclosure and the preferred embodiment disclosed herein will provide all of the above-mentioned advantages and improvements. Can and are included in the scope of the present disclosure.

The specific dimensions, specific materials, and / or specific shapes disclosed herein are merely examples and do not limit the scope of the disclosure. The specific values disclosed herein and the specific ranges of values for a given variable do not exclude ranges of other values and numbers useful in one or more examples disclosed herein. In addition, any two specific values of the specific variables disclosed herein are given variables (e.g., the initiation of the first and second values of a given variable means that any number between the first and second values is given to the given variable). It is envisioned that it is possible to define a range of numerical endpoints suitable for the disclosure that it may be employed). For example, if the variable X is given here to have the values A and Z, the variable X is envisioned to have a range from approximately A to Z. Similarly, it is envisioned that the initiation of two or more numerical ranges of a variable (whether the ranges are interleaved, overlapping or distinct) includes all possible combinations of ranges of numerical values that can be claimed using the endpoints of the disclosed range. For example, the variable X here has values in the range of 1-10, 2-9, or 3-8, for example, the variable X is 1-9, 1-8, 1-3, 1-2 , 2-10, 2-8. It is envisioned to have other ranges of values including 2-3, 3-10, and 3-9.

The terminology used herein is for the purpose of describing specific exemplary embodiments only and is not intended to be limiting. As used herein, singular forms of "one" and "above" are intended to include plural forms unless the context clearly indicates otherwise. The terms "comprises", "comprising", and "having" are inclusive and thus specify the presence of the stated features, integers, steps, actions, elements, and / or configurations but one or more other features. Does not exclude the presence of groups, integers, steps, actions, elements, configurations, and / or groups thereof. The method steps, procedures, and acts described herein are not to be interpreted as being necessarily required to be performed in the specific order discussed and illustrated, unless specifically identified in the order of performance. It is understood that additional or alternative steps may be employed.

When an element or layer is referred to as "on", "engages", "connects", or "joins" another element or layer, it is directly above, engages, or connects to another element or layer, or There may be elements or layers interposed or interposed therebetween. In contrast, if one element is said to be "directly above", "directly engaged", "directly connected", or "directly coupled" to another element or layer, there are no intervening elements or layers. Other words used to describe the relationship between the elements should be interpreted in the same way (eg, “between” vs. “directly between”, “closely”, “directly close”, etc.). As used herein, the term “and / or” includes all combinations with any one or more of the associated listed items.

The term “about”, when applied to a numerical value, refers to the fact that the calculation or measurement allows for some minor inaccuracy of the numerical value (close to the precision of the value; approximately or significantly close to the value; slightly close to the value). For some reason, the inaccuracy by "about" is not understood differently than its general meaning in the art, and "about" as used herein refers to the minimal changes arising from the general methods of measuring and using such variables. . For example, the terms “general”, “about”, and “substantially” can be used herein to mean within manufacturing tolerances.

Although the terms first, second, third, etc. can be used herein to describe various elements, configurations, regions, layers, and / or zones, such elements, configurations, regions, layers , And / or zones are not limited to these terms. These terms are only used to distinguish one element, composition, region, layer, or region from another region, layer, or region. Terms such as “first”, “second”, and other numerical terms, when used herein, do not imply order or order unless explicitly indicated by the context. Accordingly, a first element, configuration, region, layer, or zone may be referred to as a second element, configuration, region, layer, or zone, without departing from the teachings of the exemplary embodiments.

Here, spatially related terms such as “inside”, “outside”, “down”, “bottom”, “upper”, “upper”, etc. are different from one element or feature as shown in the figure. Can be used for convenience of narrative to describe the relationship to element (s), feature (s). The spatially related terms are intended to include other directions in addition to the directions depicted in the drawing of the device or operation in use. For example, elements described as being “below” or “below” other elements or major parts will be adapted to be “above” the other elements or major parts if the device in the drawing is turned over. As such, the exemplary term “below” can include both upward and downward directionality. The device may be otherwise oriented (rotated at 90 degrees or other directions), and thus spatially related descriptors are interpreted herein.

The preceding description of the above embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit disclosure. The individual elements, intended or recited uses, or features of a particular embodiment are generally not limited to that particular embodiment, but may be used in a replaceable and selected embodiment where applicable, but not specifically shown or described. . The above can also be varied in many ways. Such changes are not considered to be outside the scope of the disclosure, and all changes are intended to be included within the scope of this disclosure.

Claims (21)

An electromagnetic interference (EMI) shielding gasket, comprising: a base, at least one finger extending outward from the base in a first direction, and at least one clip extending outward from the base in a second direction,
The finger includes spaced ends separated by a slit extending therebetween, including at least one slit extending along the finger,
The base includes an inner circumference and an outer circumference,
The at least one finger includes a plurality of spring fingers along the outer circumference of the base,
The at least one clip includes a plurality of clips spaced along the inner circumference of the base.
EMI shielding gasket. delete An electromagnetic interference (EMI) shielding gasket, comprising: a base, at least one finger extending outward from the base in a first direction, and at least one clip extending outward from the base in a second direction,
The finger includes spaced ends separated by a slit extending therebetween, including at least one slit extending along the finger,
The base is circular and includes an inner diameter and an outer diameter,
The at least one finger includes a plurality of spring fingers spaced around the outer diameter of the base,
The at least one clip includes a plurality of clips spaced around the inner diameter of the base.
EMI shielding gasket. An electromagnetic interference (EMI) shielding gasket, comprising: a base, at least one finger extending outward from the base in a first direction, and at least one clip extending outward from the base in a second direction,
The finger includes spaced ends separated by a slit extending therebetween, including at least one slit extending along the finger,
The base includes an inner circumference and an outer circumference,
The at least one finger includes a plurality of spring fingers that are uniformly spaced around the outer circumference of the base and extend upward therefrom,
The at least one clip includes a plurality of clips uniformly spaced along the inner circumference of the base and extending downward therefrom.
EMI shielding gasket. According to claim 1,
The gasket has a circular ring shape with a central opening.
EMI shielding gasket. An electromagnetic interference (EMI) shielding gasket, comprising: a base, at least one finger extending outward from the base in a first direction, and at least one clip extending outward from the base in a second direction,
The finger includes spaced ends separated by a slit extending therebetween, including at least one slit extending along the finger,
The gasket is configured to be compressed between upper and lower members so that electrical contact is formed between the upper member and the gasket along the outer edge of the finger and the edge of the slit.
EMI shielding gasket. The method of claim 6,
The gasket is compressed between the upper and lower members so that when the finger and clip are in electrical contact with the corresponding electro-conductive parts of each of the upper and lower members, one of the EMI shielding gasket and one in the internal space defined by the upper and lower members Configured to provide EMI shielding of the above components
EMI shielding gasket. An electromagnetic interference (EMI) shielding gasket, comprising: a base, at least one finger extending outward from the base in a first direction, and at least one clip extending outward from the base in a second direction,
The finger includes spaced ends separated by a slit extending therebetween, including at least one slit extending along the finger,
The gasket is configured to be compressed between upper and lower members,
The fingers are configured to extend upward from the base of the gasket and to be elastically compressed toward the base so that the ends of the fingers are in electrical contact with the corresponding electrical conduction of the upper member,
The clip is configured to extend downward from the base of the gasket and to be pulled into contact with the inner sidewall of the lower member.
EMI shielding gasket. The method of claim 8,
The finger is configured to be in electrical contact with the corresponding electrically conductive portion of the upper member in one direction,
The clip is configured to electrically contact and engage the inner sidewall of the lower member in another direction perpendicular to the direction, wherein the clip is configured to electrically contact the corresponding electrical conduction portion of the upper member.
EMI shielding gasket. According to claim 1,
The at least one finger includes a plurality of spring fingers,
The gasket includes a plurality of slots defining the plurality of spring fingers, each slot extending between a pair of corresponding spring fingers
EMI shielding gasket. According to claim 1,
The gasket comprises a resiliently flexible electro-conductive material
EMI shielding gasket. According to claim 1,
The finger
Linear part;
A first connection between the base and the linear portion; And
A second connection between the linear portion and the spaced ends
EMI shielding gasket. The method of claim 12,
The first connecting portion defines a curved, angled, and / or acute angle between the base and the linear portion,
The linear portion extends upward from the first connection portion to the second connection portion,
The second connection defines a curved, angled, and / or obtuse angle between the linear portion and the spaced ends.
EMI shielding gasket. An electromagnetic interference (EMI) shielding gasket, comprising: a base, at least one finger extending outward from the base in a first direction, and at least one clip extending outward from the base in a second direction,
The finger includes spaced ends separated by a slit extending therebetween, including at least one slit extending along the finger,
The clip is
Linear part;
A third connection between the base and the linear portion of the clip; And
A fourth connection between the linear portion and the end of the clip
EMI shielding gasket. The method of claim 14,
The third connecting portion defines a curved, angled, and / or acute angle between the base and the linear portion,
The linear portion extends downward from the third connection portion to the fourth connection portion,
The fourth connecting portion defines a curved, angled, and / or obtuse angle between the linear portion and the end of the clip.
EMI shielding gasket. The method of claim 15,
The fourth connection portion of the clip is configured to operate as a camming surface that urges the clip to move outward from the inner side wall when the fourth connection portion is in sliding contact along the inner side wall,
The clip is configured to have elasticity to urge the clip to return to its original position, thereby creating a connection force between the clip and the inner sidewall.
EMI shielding gasket. An electromagnetic interference (EMI) shielding gasket, comprising: a base, at least one finger extending outward from the base in a first direction, and at least one clip extending outward from the base in a second direction,
The finger includes spaced ends separated by a slit extending therebetween, including at least one slit extending along the finger,
The gasket is configured to be compressed between upper and lower members,
The base is circular and includes an inner diameter and an outer diameter,
The at least one finger includes a plurality of spring fingers spaced apart uniformly along the outer diameter of the base,
The at least one clip includes a plurality of clips spaced apart uniformly along the inner diameter of the base,
The spring fingers are configured to extend upwardly from the base of the gasket and to be elastically compressed toward the base so that the ends of the spring fingers are in electrical contact with corresponding electrical conduction portions of the upper member,
The clips are configured to extend downward from the base of the gasket and to be pulled into contact with the inner sidewall of the lower member.
EMI shielding gasket. The method of claim 17,
Each spring finger includes a linear portion, a first connection portion between the base and the linear portion, and a second connection portion between the linear portion and the spaced ends,
The first connecting portion defines a curved, angled, and / or acute angle between the base and the linear portion,
The linear portion extends upward from the first connection portion to the second connection portion,
The second connection defines a curved, angled, and / or obtuse angle between the linear portion and the spaced ends.
EMI shielding gasket. The method of claim 17 or 18,
Each clip includes a linear portion, a third connection portion between the base and the linear portion, and a fourth connection portion between the linear portion and the end portion of the clip,
The third connecting portion defines a curved, angled, and / or acute angle between the base and the linear portion,
The linear portion extends downward from the third connection portion to the fourth connection portion,
The fourth connecting portion defines a curved, angled, and / or obtuse angle between the linear portion and the end of the clip.
EMI shielding gasket. The method of claim 19,
The fourth connection portion of the clip is configured to operate as a camming surface that urges the clip to move outward from the inner sidewall when the fourth connection portion slides along the inner sidewall,
The clip is configured to have elasticity to urge the clip to return to its original position, thereby creating a connection force between the clip and the inner sidewall.
EMI shielding gasket. The method of claim 6,
The base includes an inner circumference and an outer circumference,
The at least one finger includes a plurality of spring fingers along the outer circumference of the base,
The at least one clip includes a plurality of clips spaced along the inner circumference of the base.
EMI shielding gasket.

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