Low-resistance wrapped foamed plastic

Abstract

A low-resistance wrapping type foam comprises a foam body, the top of the foam body protrudes outwards to form a top protruding block, the bottom of the foam body protrudes outwards to form a bottom protruding block, conductive cloth wraps the outer layer of the foam body, and a plurality of conductive adhesive tapes are arranged in the middle of the bottom of the conductive cloth. The beneficial effects of the utility model are that the foam main body is additionally provided with the top protruding block and the bottom protruding block, and the foam main body is completely wrapped by the conductive cloth, so that the conductive cloth can be directly contacted with a contacted conductor, the contact area is ensured, and the structure is ensured to have a certain buffer gap; not only is the resistance effectively reduced, but also the conductivity can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wrapped foam, in particular to a low-resistance wrapped foam. BACKGROUND

[0002] Foam refers to the material formed by the plastic particles through the foaming process, which has a series of characteristics such as high resilience, light weight, softness, convenient use, bending freely, ultra-thin volume, reliable performance, etc., and is widely used in shock absorption, sealing and gap filling fields, and the wrapped foam is a composite material made of soft foaming material, which usually has a conductive layer and a foam layer, and can effectively prevent static electricity and mechanical vibration from damaging electronic equipment due to its conductivity.

[0003] The existing Chinese patent technology 202122968549.8 discloses a super-soft low-resistance wrapped foam, which comprises a foam core, the outer surface of the foam core is wrapped with a low-resistance conductive non-woven fabric, the outer surface of the low-resistance conductive non-woven fabric is provided with a conductive double-sided adhesive layer on one side, the low-resistance conductive non-woven fabric comprises a polyester fiber layer, the surface of the polyester fiber layer is vacuum-plated with a first metal nickel layer, the side of the first metal nickel layer away from the polyester fiber layer is vacuum-plated with a copper foil layer, and the side of the copper foil layer away from the first metal nickel layer is vacuum-plated with a second metal nickel layer, the foam core is a PU foam with a specification of 25KG / CM3, the application selects a super-soft PU sponge core (25KG / CM3), and the super-low-resistance conductive non-woven fabric and the double-sided conductive adhesive tape are compounded, so that it is suitable for occasions with limited capacity and closed pressure, and the structure has low cost, good conductivity, high shielding effectiveness, good wear resistance and high reliability, the installation mode is simple and various, and is suitable for electronic applications such as sticking and clamping grooves.

[0004] Although the existing technology selects a super-soft PU sponge core (25KG / CM3), and the super-low-resistance conductive non-woven fabric and the double-sided conductive adhesive tape are compounded, so that it is suitable for occasions with limited capacity and closed pressure, and the structure has low cost, good conductivity, high shielding effectiveness, good wear resistance and high reliability, the installation mode is simple and various, and is suitable for electronic applications such as sticking and clamping grooves, but the conductive layer cannot be directly contacted with the contact conductor, but is connected and conducted through the conductive double-sided adhesive layer, thereby affecting the conductivity effect. UTILITY MODEL CONTENTS

[0005] The utility model discloses a low resistance package formula bubble sponges, and the equipment is added with the top lug and bottom lug on the bubble cotton main body, and the bubble cotton main body is completely wrapped by using the conductive cloth, so that the conductive cloth can directly contact the contacted conductor, the contact area is guaranteed, the structure itself has certain buffer gap, the resistance is effectively reduced, and the conductivity is guaranteed.

[0006] To realize above-mentioned purpose, the utility model adopts following technical scheme is: a low resistance package formula bubble sponges, it includes bubble cotton main body 3, the top of bubble cotton main body 3 is outward bulged and forms top lug 301, and the bottom of bubble cotton main body 3 is outward bulged and forms bottom lug 302, the outer layer of bubble cotton main body 3 is wrapped with conductive cloth 1, and the middle part of the bottom of conductive cloth 1 is equipped with a plurality of conductive adhesive tape 2.

[0007] Further, the conductive adhesive tape 2 is provided with a plurality of, and equidistantly distributed in the middle part of the bottom of the conductive cloth 1.

[0008] Further, the bottom lug 302 is provided with at least two, and symmetrically distributed on the bottom of the bubble cotton main body 3.

[0009] Further, the thickness of the conductive adhesive tape 2 is less than the bulging height of the bottom lug 302.

[0010] Further, the conductive cloth 1 includes a polyester fiber layer 13, the polyester fiber layer 13 is provided with an adhesive adhesive layer 14 on the side close to the bubble cotton main body 3, a copper-plated conductive layer 12 is provided on the other side of the polyester fiber layer 13, and a silver-plated conductive layer 11 is provided on the outer side of the copper-plated conductive layer 12.

[0011] After adopting the above technical scheme, the utility model has the beneficial effects that: the equipment is added with the top lug and bottom lug on the bubble cotton main body, and the bubble cotton main body is completely wrapped by using the conductive cloth, so that the conductive cloth can directly contact the contacted conductor, the contact area is guaranteed, the structure itself has certain buffer gap, the resistance is effectively reduced, and the conductivity is guaranteed. ACCURACY

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying the creative labor.

[0013] Figure 1 It is the structural schematic diagram of the utility model.

[0014] Figure 2 It is the back structure schematic diagram of the utility model.

[0015] Figure 3 It is Figure 2 The cross section structure schematic diagram of A-A in it.

[0016] Figure 4 It is the structure schematic diagram of the conductive cloth in the utility model.

[0017] Figure 5 It is the structure schematic diagram of the foam main body in the utility model.

[0018] Mark explanation: conductive cloth 1, conductive adhesive tape 2, foam main body 3, top bump 301, bottom bump 302, silver-plated conductive layer 11, copper-plated conductive layer 12, polyester fiber layer 13, adhesive adhesive layer 14. Specific implementation

[0019] Referring to Figures 1-5 The technical scheme adopted in the specific implementation is: it includes foam main body 3, the top of the foam main body 3 is outwardly convex and forms top bump 301, and the bottom of the foam main body 3 is outwardly convex and forms bottom bump 302, the outer layer of the foam main body 3 is wrapped with conductive cloth 1, and the middle part of the bottom of the conductive cloth 1 is provided with a plurality of conductive adhesive tapes 2.

[0020] Further, the conductive adhesive tape 2 is provided with a plurality of, and is equidistantly distributed in the middle part of the bottom of the conductive cloth 1. The conductive adhesive tape 2 can be used to stick the wrapped foam and the contacted conductor.

[0021] Further, the bottom bump 302 is provided with at least two, and is symmetrically distributed on the bottom of the foam main body 3. The plurality of bottom bumps 302 can ensure the contact area between the conductive cloth 1 and the contacted conductor, so that the conductive cloth can be directly connected with the contacted conductor, thereby reducing the resistance.

[0022] Further, the thickness of the conductive adhesive tape 2 is less than the convex height of the bottom bump 302. It can ensure the contact area between the bottom bump 302 and the contacted conductor while ensuring the adhesion.

[0023] Further, the conductive cloth 1 includes polyester fiber layer 13, the polyester fiber layer 13 is provided with adhesive adhesive layer 14 close to one side of the foam main body 3, the other side of the polyester fiber layer 13 is provided with copper-plated conductive layer 12, and the outer side of the copper-plated conductive layer 12 is provided with silver-plated conductive layer 11. The adhesive adhesive layer 14 can ensure that the conductive cloth 1 wraps the foam main body 3, and the silver-plated conductive layer 11 and the copper-plated conductive layer 12 can ensure the conductivity of the conductive cloth 1, and silver and copper have low resistance value.

[0024] The utility model discloses a working principle: when using, the staff can stick its conductive adhesive tape 2 on the contacted conductor, at this moment, the conductive cloth 1 of its wrapping bottom bump 302 can directly contact the contacted conductor, need not pass through the transmission of conductive adhesive tape 2, and the top bump 301 can contact another contacted conductor, wherein, because the top bump 301 and bottom bump 302 protrude a certain height outward, when extruding, can preferentially absorb its pressure and impact force, so that it has certain buffer property, can better guarantee its contacted conductor.

[0025] The above is only used to explain the technical scheme of the utility model and is not limited, and other modifications or equivalent replacements of the technical scheme of the utility model made by the ordinary skill in the art should be covered in the claim range of the utility model.

Claims

1. A low resistance encased foam, characterized by: It includes a foam body (3), the top of the foam body (3) is outwardly convex to form a top bump (301), and the bottom of the foam body (3) is outwardly convex to form a bottom bump (302), the outer layer of the foam body (3) is wrapped with a conductive cloth (1), and the middle of the bottom of the conductive cloth (1) is provided with a plurality of conductive tapes (2).

2. A low resistance encased foam according to claim 1, wherein: The conductive tapes (2) are provided with a plurality of, and are equidistantly distributed on the middle of the bottom of the conductive cloth (1).

3. A low resistance encased foam according to claim 1, wherein: The bottom bump (302) is provided with at least two, and is symmetrically distributed on the bottom of the foam body (3).

4. A low resistance encased foam as defined in claim 1, wherein: The thickness of the conductive tape (2) is less than the convex height of the bottom bump (302).

5. A low resistance encased foam as defined in claim 1, wherein: The conductive cloth (1) includes a polyester fiber layer (13), the polyester fiber layer (13) is provided with an adhesive adhesive layer (14) close to one side of the foam body (3), the other side of the polyester fiber layer (13) is provided with a copper-plated conductive layer (12), and the outer side of the copper-plated conductive layer (12) is provided with a silver-plated conductive layer (11).

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