CN219124684U

CN219124684U - Conductive foam

Info

Publication number: CN219124684U
Application number: CN202223294740.XU
Authority: CN
Inventors: 张红晓
Original assignee: Suzhou Linda New Material Technology Co ltd
Current assignee: Suzhou Linda New Material Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-06-02
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses conductive foam, which comprises a foam body, wherein connecting mechanisms are arranged on the left side and the right side of the foam body, each connecting mechanism comprises a protruding part and a connecting groove, each protruding part is arranged on the side surface of the foam body, each connecting groove is arranged on the side surface far away from the corresponding protruding part, the positions and the sizes of the connecting grooves are matched, each connecting protruding part can be inserted into each connecting groove of adjacent conductive foam and clamped with each connecting groove, each protruding part and each connecting groove can be connected with two adjacent conductive foams, one end of each protruding part far away from the foam body is a front end part, each front end part is provided with a strip-shaped through groove, and each strip-shaped through groove extends from the front end part to the foam body. The compactness that protruding piece and connection recess are connected is promoted through the setting of bar logical groove, makes the cotton firm in connection of two adjacent electrically conductive bubble, is difficult to separate and drops.

Description

Conductive foam

Technical Field

The utility model relates to the technical field of conductive foam, in particular to conductive foam.

Background

The conductive foam is characterized in that the conductive foam is coated on the flame-retardant sponge, has good surface conductivity after a series of treatments, can be easily fixed on a device to be shielded by using an adhesive tape, has different cross-sectional shapes, installation methods, UL grades and shielding materials with shielding effectiveness, and can be selected, so that the conductive foam is suitable for realizing electromagnetic shielding in occasions with narrow space and limited closing pressure due to the good surface conductivity and compressibility, and is widely applied to electronic cabinets, shells, indoor cabinets, industrial equipment, notebook computers, mobile communication equipment and the like. The existing conductive foam used on electronic products is not firmly connected with the end faces of the conductive foam and is easy to separate and fall off.

Disclosure of Invention

In order to overcome the defects, the utility model aims to provide the conductive foam, and the connecting mechanism is arranged at the end part of the conductive foam, so that two adjacent conductive foams are firmly connected and are not easy to separate and fall off.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a conductive foam, includes the foam body, the left and right sides of foam body is provided with coupling mechanism, coupling mechanism includes protruding piece and coupling groove, coupling mechanism is used for connecting two adjacent conductive foam, protruding piece sets up the side at the foam body, coupling groove sets up keeping away from on the side at protruding piece place, and coupling groove's position with protruding portion's position, size looks adaptation, the protruding piece of connection can insert in the coupling groove of adjacent conductive foam with coupling groove joint, protruding piece with coupling groove can connect adjacent two conductive foam, the protruding piece is kept away from the one end of foam body and is the tip, the tip is provided with the bar and leads to the groove, the bar leads to the groove by the tip to the direction of foam body extends. The front end of the protruding piece is provided with two clamping pieces, and the two clamping pieces are elastic due to the arrangement of the strip-shaped through grooves and can be mutually far away from each other or mutually close to each other under the condition of external force. When the protruding piece is inserted into the connecting groove, the side wall of the protruding piece is extruded by the inner wall of the connecting groove, and the two clamping pieces are close to each other, so that the protruding piece can be conveniently inserted into the connecting groove; after the protruding piece is inserted into the connecting groove, the clamping piece is extruded outwards due to the elasticity of the clamping piece and is tightly connected with the inner wall of the connecting groove, so that the connection tightness of the protruding piece and the connecting groove is improved, and two adjacent conductive foam pieces are firmly connected and are not easy to separate and fall off.

Further, two strip-shaped through grooves are formed in parallel, and the two strip-shaped through grooves are respectively close to the left edge and the right edge of the protruding piece, so that deformation occurs when the side face of the protruding portion is subjected to external force, and the strip-shaped through grooves are bent towards the direction of the strip-shaped groove.

Further, a claw is provided on a side surface of the front end portion of the protruding member, the claw extends from the front end portion toward the foam body, a width at the front end portion is smaller than a width toward the foam body, and the width of the claw is smoothly transited and gradually increased.

Further, the claw and the side surface of the protruding piece form an included angle, and the included angle ranges from 60 degrees to 90 degrees.

Further, two claws are provided, and the two claws are symmetrically provided at both left and right sides of the protruding member.

Further, the device further comprises a second groove, wherein the second groove is communicated with the connecting groove, the second groove is arranged on one side of the connecting groove, and the shape, the size and the clamping jaw of the second groove are matched.

Further, a stop block is formed at the joint of the connecting groove and the second groove, and the size and the position of the stop block are matched with those of the included angle. When the protruding piece inserts in the connection recess, the jack catch is located in the second recess, the dog is located contained angle department, and the dog blocks the jack catch, increases the stability of connection, prevents that the connecting piece from breaking away from in the connection recess.

Further, the foam body comprises a foam layer, a protective layer is arranged on the upper side of the foam layer, a conductive layer is arranged on the lower side of the foam layer, a viscose layer is arranged on the lower side of the conductive layer, the viscose layer is formed by acrylic conductive self-adhesive glue, and an isolating film is arranged on the lower side of the viscose layer.

Further, the conductive layer is a conductive metal coating, and the thickness of the conductive metal coating ranges from 0.04mm to 0.07mm.

Further, the foam layer is polyurethane foam, and the thickness range of the polyurethane foam is 0.5 mm-30 mm.

The beneficial effects of the utility model are as follows:

1) Through the arrangement of the strip-shaped through grooves, the front end part of the protruding piece is provided with two clamping pieces, and the two clamping pieces are elastic due to the arrangement of the strip-shaped through grooves and can be far away from each other and also can be close to each other under the condition of external force. When the protruding piece is inserted into the connecting groove, the side wall of the protruding piece is extruded by the inner wall of the connecting groove, and the two clamping pieces are close to each other, so that the protruding piece can be conveniently inserted into the connecting groove; after the protruding piece is inserted into the connecting groove, the clamping piece is extruded outwards due to the elasticity of the clamping piece and is tightly connected with the inner wall of the connecting groove, so that the connection tightness of the protruding piece and the connecting groove is improved, and two adjacent conductive foam pieces are firmly connected and are not easy to separate and fall off.

2) Through the setting of contained angle and fixture block, after protruding piece inserts the coupling groove, the dog is located contained angle department, and the dog stops the jack catch, makes the unable stability of following coupling groove and coming off of connecting piece, has further increased the cotton connection of two adjacent conductive bubbles.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a conductive foam according to an embodiment of the present utility model;

fig. 2 is a front view of a conductive foam according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a conductive foam according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of a boss according to an embodiment of the present utility model;

fig. 5 is an enlarged view of a coupling groove according to an embodiment of the present utility model.

In the figure: 1. a foam body; 11. a protective layer; 12. a foam layer; 13. a conductive layer; 14. an adhesive layer; 15. a separation film; 2. a protruding member; 21. a front end portion; 22. a strip-shaped through groove; 23. a claw; 24. an included angle; 3. a connection groove; 31. a second groove; 32. and a stop block.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1-3, a conductive foam in this embodiment includes a foam body 1, and connection mechanisms are disposed on the left and right sides of the foam body 1, where the connection mechanisms include a protruding member 2 and a connection groove 3, and the connection mechanisms are used for connecting two adjacent conductive foams.

In some embodiments, the foam body 1 includes a foam layer 12, a protective layer 11 is disposed on the upper side of the foam layer 12, a conductive layer 13 is disposed on the lower side of the foam layer 12, an adhesive layer 14 is disposed on the lower side of the conductive layer 13, the adhesive layer 14 is formed by acrylic conductive self-adhesive, and a separation film 15 is disposed on the lower side of the adhesive layer 14.

In some embodiments, the conductive layer 13 is a conductive metal plating layer, and the thickness of the conductive metal plating layer ranges from 0.04mm to 0.07mm. The foam layer 12 is made of polyurethane foam, and the thickness of the polyurethane foam ranges from 0.5mm to 30mm. The conductive metal coating is arranged on the polyurethane foam, so that the polyurethane foam has good permanent conductive performance, achieves the effect of omnibearing conduction, has the functions of conducting and shielding electromagnetic waves, has a three-dimensional shielding effect, can effectively shield electromagnetic waves, can rapidly release static electricity, plays a role in preventing static electricity, can prevent damage to electronic components caused by the static electricity, improves the heat conductivity of the polyurethane foam, and can timely emit heat, thereby effectively avoiding easy temperature rise of electronic products.

In some embodiments, the protruding piece 2 is disposed on the side surface of the foam body 1, the connection groove 3 is disposed on the side surface far away from the protruding piece 2, the position of the connection groove 3 is matched with the position and the size of the protruding part, the protruding piece 2 can be inserted into the connection groove 3 of the adjacent conductive foam and is clamped with the connection groove 3, and the two adjacent conductive foams are connected through the protruding piece 2 and the connection groove 3.

Referring to fig. 4, in some embodiments, the end of the protruding member 2 away from the foam body 1 is a front end 21, the front end 21 is provided with a strip-shaped through groove 22, and the strip-shaped through groove 22 extends from the front end 21 toward the foam body 1, so that the front end 21 of the protruding member 2 is divided into two clamping pieces, and the two clamping pieces can be separated from each other or can be close to each other under the condition of external force due to the elasticity of the arrangement of the strip-shaped through groove 22.

In other embodiments, two strip-shaped through grooves 22 are provided in parallel, and two strip-shaped through grooves 22 are respectively provided near the edges of the protruding member 2, so that the strip-shaped through grooves 22 are bent in the direction of deformation when the side surface of the protruding member 2 is subjected to external force.

In some embodiments, the claws 23 are provided on left and right sides of the front end portion 21 of the protruding member 2, the claws 23 extend from the front end portion 21 toward the foam body 1, and the width at the front end portion 21 is smaller than the width in the extending direction of the foam body 1, and the width of the claws 23 smoothly transitions and gradually increases. The jaws 23 and the sides of the protruding member 2 form an angle 24, the angle 24 being in the range of 60-90 degrees.

In some embodiments, two claws 23 are provided and symmetrically disposed on the left and right sides of the protruding member 2.

Referring to fig. 5, in some embodiments, the device further includes a second groove 31, the second groove 31 communicates with the connecting groove 3, the second groove 31 is disposed at one side of the connecting groove 3, and the shape, size, and the shape of the second groove 31 are adapted to the jaw 23. The junction of connecting groove 3 with second recess 31 forms dog 32, dog 32 with the size, the position looks adaptation of contained angle 24, when protruding piece 2 inserts in the connecting groove 3, jack catch 23 is located in the second recess 31, dog 32 is located contained angle 24 department, and dog 32 blocks jack catch 23, increases the stability of connection, prevents that the connecting piece from breaking away from in the connecting groove 3.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a conductive foam, includes foam body (1), its characterized in that, the left and right sides of foam body (1) is provided with coupling mechanism, coupling mechanism includes protruding piece (2) and coupling groove (3), protruding piece (2) set up the side at foam body (1), coupling groove (3) set up keep away from at foam body (1) on the side of protruding piece (2), and the position of coupling groove (3) with the position of protruding piece (2) size looks adaptation, protruding piece (2) can insert in adjacent conductive foam's coupling groove (3) with coupling groove (3) joint, protruding piece (2) with coupling groove (3) can connect adjacent two conductive foam, the one end that protruding piece (2) kept away from foam body (1) is tip (21), tip (21) are provided with bar logical groove (22), lead to groove (22) by tip (21) to foam 1) direction extension.

2. A conductive foam according to claim 1, characterized in that two strip-shaped through grooves (22) are provided, two strip-shaped through grooves (22) are arranged in parallel, and two strip-shaped through grooves (22) are respectively arranged near the left and right edges of the protruding member (2).

3. A conductive foam according to claim 2, characterized in that a claw (23) is provided on the side of the front end (21) of the protruding member (2), said claw (23) extending from the front end (21) in the direction of the foam body (1), and the width of the front end (21) being smaller than the width in the direction of the foam body (1), said claw (23) being smoothly transited and gradually increasing.

4. A conductive foam according to claim 3, characterized in that the jaws (23) and the sides of the protruding element (2) form an angle (24), said angle (24) being in the range of 60-90 degrees.

5. A conductive foam according to claim 4, characterized in that two of the claws (23) are provided and that the two claws (23) are symmetrically provided on both the left and right sides of the protruding member (2).

6. The conductive foam according to claim 5, further comprising a second groove (31), wherein the second groove (31) is communicated with the connecting groove (3), the second groove (31) is arranged on one side of the connecting groove (3), and the shape, the size and the claw (23) of the second groove (31) are matched.

7. A conductive foam according to claim 6, characterized in that the connection between the connecting groove (3) and the second groove (31) forms a stop (32), and the size and position of the stop (32) and the included angle (24) are adapted.

8. The conductive foam according to claim 1, wherein the foam body (1) comprises a foam layer (12), a protective layer (11) is arranged on the upper side of the foam layer (12), a conductive layer (13) is arranged on the lower side of the foam layer (12), an adhesive layer (14) is arranged on the lower side of the conductive layer (13), and a separation film (15) is arranged on the lower side of the adhesive layer (14).

9. A conductive foam according to claim 8, characterized in that the conductive layer (13) is a conductive metal coating, the thickness of which is in the range of 0.04mm to 0.07mm.

10. The conductive foam according to claim 8, wherein the foam layer (12) is polyurethane foam, and the thickness of the polyurethane foam is in the range of 0.5mm to 30mm.