Flame-retardant high-temperature-resistant conductive foam

Abstract

The utility model provides flame-retardant high-temperature-resistant conductive foam, which relates to the technical field of conductive foam and comprises a foam body. A hexagonal through hole is formed in the foam body, a reinforcing frame is fixed in the hexagonal through hole in the foam body, the reinforcing frame is of a hexagonal structure, two sets of heat dissipation pipes are fixed to each of the six edges of the reinforcing frame, the foam body is filled with particle balls, the particle balls are made of aerogel materials, and a heat insulation layer is arranged outside the foam body. The reinforcing frame is of a hollow structure, the hollow structure can improve the heat dissipation performance, heat in the foam body can be discharged in time through the arrangement of the heat dissipation pipe, the service life is prolonged, and the high-temperature resistance of the conductive foam can be improved; the particle balls can rapidly rebound after being extruded, the rebound resilience of the conductive foam is improved, the outer side of the flame-retardant layer is wrapped with the fiber layer, the fiber layer can play a buffering role, and the flame-retardant layer is made of a PC flame-retardant material, so that the heat resistance of the conductive foam is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive foam, in particular to a flame retardant and high temperature resistant conductive foam. Background Art

[0002] Conductive foam refers to a flame retardant sponge wrapped with conductive cloth. After a series of treatments, it has good surface conductivity and can be easily fixed on the device to be shielded with adhesive tape. There are shielding materials with different cross-sectional shapes, installation methods, UL grades and shielding effectiveness to choose from. It is widely used in electronic chassis, housings, indoor chassis, industrial equipment, laptops, mobile communication equipment, etc. The utility model is a flame retardant and high temperature resistant conductive foam.

[0003] The existing conductive foam has poor heat dissipation and a short service life. In addition, the existing conductive foam has poor resilience after being squeezed, and the use effect is not ideal. Utility Model Content

[0004] The disclosed embodiments relate to a flame-retardant and high-temperature resistant conductive foam to solve the problems that the existing conductive foam has poor heat dissipation and short service life, and the existing conductive foam has poor rebound performance after being squeezed and unsatisfactory use effect.

[0005] In a first aspect, the present disclosure provides a flame retardant and high temperature resistant conductive foam, specifically comprising: a foam body;

[0006] The foam body is made of polyurethane resin material, and is provided with hexagonal through holes. A reinforcement frame is fixed in the hexagonal through holes on the foam body. The reinforcement frame is a hexagonal structure, and two groups of heat pipes are fixed on the six sides of the reinforcement frame. The interior of the foam body is filled with granular balls, and the granular balls are aerogel materials. An insulation layer is provided on the outside of the foam body, and a flame retardant layer is provided on the outside of the insulation layer. The outer side of the flame retardant layer is wrapped with a fiber layer, and a positioning layer is provided on the outer side of the fiber layer. Conductive cloth is fixed on the front, back and upper sides of the positioning layer.

[0007] In at least some embodiments,

[0008] The reinforcement frame is a hollow structure, and the diameter of the particle ball is 0.1 mm.

[0009] In at least some embodiments,

[0010] The flame retardant layer is made of PC flame retardant material, and the surface of the flame retardant layer is coated with flame retardant.

[0011] In at least some embodiments,

[0012] The thickness of the fiber layer is 0.6 mm, and the thickness of the conductive cloth is 15 mm.

[0013] In at least some embodiments,

[0014] Four groups of positioning protrusions are fixed on the front side of the positioning layer, and four groups of positioning grooves are arranged on the rear side of the positioning layer. The four groups of positioning protrusions are embedded in the four groups of positioning grooves on the rear side of another group of positioning layers, and four groups of fixing blocks are fixed to the front and rear ends of the positioning layer. Circular grooves are arranged on the fixing blocks, and magnet sheets are glued and fixed in the circular grooves.

[0015] In at least some embodiments,

[0016] Two groups of double-sided tapes are provided at the lower end of the positioning layer, and two groups of hidden grooves are provided at the lower end of the positioning layer, two groups of brackets are fixed on the inner wall on the rear side of the hidden groove, a toothed plate is fixed on the bracket, and two groups of sliding rods are provided in the hidden groove, connecting plates are slid on the two groups of sliding rods, top plates are fixed on the two groups of connecting plates, connecting blocks are installed on the two groups of connecting plates through two groups of bolts, movable plates are installed on the connecting blocks through bolts, springs are installed on the two groups of bolts, a serrated plate is fixed on the movable plate, and the lower end of the serrated plate is meshed with the toothed plate on the bracket.

[0017] In at least some embodiments,

[0018] Two groups of side plates are fixed at the lower end of the top plate, and the lower ends of the two groups of side plates are installed with a bottom plate by bolts, two groups of round rods are fixed between the two groups of side plates, two groups of sliders are slid on the two groups of round rods, grooves and waist-shaped grooves are arranged on the sliders, two groups of springs are arranged on the two groups of round rods, clamps are installed at the lower ends of the two groups of sliders by bolts, a separation plate is installed on the bottom plate by a pin shaft, a protrusion is arranged on the lower end of the separation plate, the protrusion is located in the grooves on the two groups of sliders, and two groups of rollers are arranged on the separation plate, and the two groups of rollers are respectively located in the waist-shaped grooves on the two groups of sliders.

[0019] The utility model provides a flame retardant and high temperature resistant conductive foam, which has the following beneficial effects:

[0020] In the utility model, a reinforcement frame is fixed in the hexagonal through hole on the foam body, the reinforcement frame is a hexagonal structure, and two groups of heat dissipation pipes are fixed on the six sides of the reinforcement frame, and the reinforcement frame is a hollow structure, which can improve the heat dissipation, and the setting of the heat dissipation pipe can discharge the heat inside the foam body in time, extend the service life, and improve the high temperature resistance of the conductive foam.

[0021] In addition, in the utility model, the interior of the foam body is filled with granular balls, which are aerogel materials. The granular balls can rebound quickly after being squeezed, thereby improving the resilience of the conductive foam. The outer side of the flame retardant layer is wrapped with a fiber layer, which can play a buffering role. The flame retardant layer is made of PC flame retardant material, thereby improving the heat resistance of the conductive foam. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0023] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0024] In the attached picture:

[0025] Figure 1 A schematic diagram showing the overall structure of the present application;

[0026] Figure 2 A schematic diagram showing the overall backend structure of the present application is shown;

[0027] Figure 3 The schematic diagram of the structure of the foam body of the present application is shown;

[0028] Figure 4 This application shows Figure 1 A schematic diagram of the enlarged structure of part A;

[0029] Figure 5 A schematic diagram showing the overall lower end structure of the present application is shown;

[0030] Figure 6 A schematic diagram of the structure of the top plate of the present application is shown;

[0031] Figure 7 This application shows Figure 6 A schematic diagram of the enlarged structure of part B;

[0032] Figure 8 A schematic structural diagram of the separation plate of the present application is shown.

[0033] Reference numerals list

[0034] 1. Foam body; 11. Reinforcement frame; 111. Heat dissipation pipe; 12. Particle ball;

[0035] 2. Thermal insulation layer; 3. Flame retardant layer; 4. Fiber layer;

[0036] 5. Positioning layer; 51. Positioning protrusion; 52. Positioning groove; 53. Fixed block; 531. Magnet sheet; 54. Double-sided tape; 55. Hidden groove; 56. Bracket; 57. Sliding rod; 571. Connecting plate; 572. Connecting block; 573. Movable plate; 5731. Sawtooth plate; 58. Top plate; 581. Side plate; 5811. Round rod; 5812. Sliding block; 5813. Clamping claw; 582. Bottom plate; 5821. Separation plate; 5822. Roller;

[0037] 6. Conductive fabric. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Example 1: Please refer to Figures 1 to 8 :

[0040] The utility model provides a flame retardant and high temperature resistant conductive foam, comprising: a foam body 1;

[0041] The foam body 1 is made of polyurethane resin material, and a hexagonal through hole is provided on the foam body 1. A reinforcement frame 11 is fixed in the hexagonal through hole on the foam body 1. The reinforcement frame 11 is a hexagonal structure, and two groups of heat dissipation pipes 111 are fixed on the six sides of the reinforcement frame 11. The inside of the foam body 1 is filled with granular balls 12, and the granular balls 12 are aerogel materials. A heat insulation layer 2 is provided on the outside of the foam body 1, and a flame retardant layer 3 is provided on the outside of the heat insulation layer 2. The outer side of the flame retardant layer 3 is wrapped with a fiber layer 4, and a positioning layer 5 is provided on the outer side of the fiber layer 4. Conductive cloth 6 is fixed to the front, back and upper sides of the positioning layer 5;

[0042] The reinforcement frame 11 is a hollow structure, the diameter of the particle ball 12 is 0.1 mm, the flame retardant layer 3 is made of PC flame retardant material, and the surface of the flame retardant layer 3 is coated with a flame retardant, the thickness of the fiber layer 4 is 0.6 mm, and the thickness of the conductive cloth 6 is 15 mm.

[0043] In the present disclosure,

[0044] Four groups of positioning protrusions 51 are fixed on the front side of the positioning layer 5, and four groups of positioning grooves 52 are arranged on the rear side of the positioning layer 5. The four groups of positioning protrusions 51 are embedded in the four groups of positioning grooves 52 on the rear side of another group of positioning layers 5, and four groups of fixing blocks 53 are fixed to the front and rear ends of the positioning layer 5. The fixing blocks 53 are provided with circular grooves, and magnet sheets 531 are glued and fixed in the circular grooves. The function of the magnet sheets 531 is to accurately connect the two groups of conductive foams through the positioning protrusions 51 and the positioning grooves 52, and the arrangement of the magnet sheets 531 can make the two groups of positioning layers 5 sucked together.

[0045] Embodiment 2, based on embodiment 1,

[0046] Two groups of double-sided tapes 54 are provided at the lower end of the positioning layer 5, and two groups of hidden grooves 55 are provided at the lower end of the positioning layer 5, two groups of brackets 56 are fixed on the inner wall of the rear side of the hidden groove 55, a toothed plate is fixed on the bracket 56, and two groups of slide bars 57 are provided in the hidden groove 55, connecting plates 571 are slidably provided on the two groups of slide bars 57, a top plate 58 is fixed on the two groups of connecting plates 571, connecting blocks 572 are installed on the two groups of connecting plates 571 through two groups of bolts, a movable plate 573 is installed on the connecting block 572 through bolts, springs are installed on the two groups of bolts, a serrated plate 5731 is fixed on the movable plate 573, the lower end of the serrated plate 5731 is meshed with the toothed plate on the bracket 56, and its function is: to toggle the movable plate 573 to separate the serrated plate 5731 from the toothed plate on the bracket 56, so that the top plate 58 can slide out downward.

[0047] Embodiment 3, based on Embodiment 1 and Embodiment 2,

[0048] Two sets of side plates 581 are fixed at the lower end of the top plate 58, and the lower ends of the two sets of side plates 581 are installed with a bottom plate 582 through bolts. Two sets of round rods 5811 are fixed between the two sets of side plates 581, and two sets of sliders 5812 are slid on the two sets of round rods 5811. The sliders 5812 are provided with grooves and waist-shaped grooves. Two sets of springs are provided on the two sets of round rods 5811. The lower ends of the two sets of sliders 5812 are installed with clamping claws 5813 through bolts. The separation plate 5813 is installed on the bottom plate 582 through a pin shaft. 21. A protrusion is provided at the lower end of the separation plate 5821, and the protrusion is located in the groove on the two groups of sliders 5812. Two groups of rollers 5822 are provided on the separation plate 5821, and the two groups of rollers 5822 are respectively located in the waist-shaped grooves on the two groups of sliders 5812. The functions of the two groups of rollers 5822 are: to move the separation plate 5821 to separate the two groups of clamps 5813. Under the action of the spring, the two groups of clamps 5813 are clamped on the device to be installed, and can also be fixed on the device to be installed by the double-sided tape 54, which is convenient for installation.

[0049] The working principle of this embodiment is as follows: the movable plate 573 is moved to separate the serrated plate 5731 from the toothed plate on the bracket 56, so that the top plate 58 can slide downward out of the hidden groove 55, and the separation plate 5821 is moved to separate the two groups of clamping claws 5813. Under the action of the spring, the two groups of clamping claws 5813 are clamped on the device to be installed, and can also be fixed on the device to be installed by the double-sided tape 54. The installation is convenient, and the two groups of conductive foams are accurately docked by the positioning protrusions 51 and the positioning grooves 52. The setting of the magnet sheet 531 can make the two groups of positioning layers 5 sucked together, the reinforcement frame 11 is a hollow structure, and the hollow structure can improve the heat dissipation, and the setting of the heat dissipation pipe 111 can discharge the heat inside the foam body 1 in time, extend the service life, and improve the high temperature resistance of the conductive foam. The granular ball 12 can rebound quickly after being squeezed, which improves the resilience of the conductive foam. The fiber layer 4 can play a buffering role, and the flame retardant layer 3 is made of PC flame retardant material to improve the heat resistance of the conductive foam.

[0050] In this article, there are a few points to note:

[0051] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0052] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0053] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A flame retardant and high temperature resistant conductive foam, comprising a foam body; characterized in that: The foam body is made of polyurethane resin material, and is provided with hexagonal through holes. A reinforcement frame is fixed in the hexagonal through holes on the foam body. The reinforcement frame is a hexagonal structure, and two groups of heat pipes are fixed on the six sides of the reinforcement frame. The interior of the foam body is filled with granular balls, and the granular balls are aerogel materials. An insulation layer is provided on the outside of the foam body, and a flame retardant layer is provided on the outside of the insulation layer. The outer side of the flame retardant layer is wrapped with a fiber layer, and a positioning layer is provided on the outer side of the fiber layer. Conductive cloth is fixed on the front, back and upper sides of the positioning layer.

2. The flame retardant and high temperature resistant conductive foam according to claim 1, characterized in that: The reinforcement frame is a hollow structure, and the diameter of the particle ball is 0.1 mm.

3. The flame retardant and high temperature resistant conductive foam according to claim 1, characterized in that: The flame retardant layer is made of PC flame retardant material, and the surface of the flame retardant layer is coated with flame retardant.

4. The flame retardant and high temperature resistant conductive foam according to claim 1, characterized in that: The thickness of the fiber layer is 0.6 mm, and the thickness of the conductive cloth is 15 mm.

5. The flame retardant and high temperature resistant conductive foam according to claim 1, characterized in that: Four groups of positioning protrusions are fixed on the front side of the positioning layer, and four groups of positioning grooves are arranged on the rear side of the positioning layer. The four groups of positioning protrusions are embedded in the four groups of positioning grooves on the rear side of another group of positioning layers, and four groups of fixing blocks are fixed to the front and rear ends of the positioning layer. Circular grooves are arranged on the fixing blocks, and magnet sheets are glued and fixed in the circular grooves.

6. The flame retardant and high temperature resistant conductive foam according to claim 5, characterized in that: Two groups of double-sided tapes are provided at the lower end of the positioning layer, and two groups of hidden grooves are provided at the lower end of the positioning layer, two groups of brackets are fixed on the inner wall on the rear side of the hidden groove, a toothed plate is fixed on the bracket, and two groups of sliding rods are provided in the hidden groove, connecting plates are slid on the two groups of sliding rods, top plates are fixed on the two groups of connecting plates, connecting blocks are installed on the two groups of connecting plates through two groups of bolts, movable plates are installed on the connecting blocks through bolts, springs are installed on the two groups of bolts, a serrated plate is fixed on the movable plate, and the lower end of the serrated plate is meshed with the toothed plate on the bracket.

7. The flame-retardant and high-temperature-resistant conductive foam according to claim 6, characterized in that: Two groups of side plates are fixed at the lower end of the top plate, and the lower ends of the two groups of side plates are installed with a bottom plate by bolts, two groups of round rods are fixed between the two groups of side plates, two groups of sliders are slid on the two groups of round rods, grooves and waist-shaped grooves are arranged on the sliders, two groups of springs are arranged on the two groups of round rods, clamps are installed at the lower ends of the two groups of sliders by bolts, a separation plate is installed on the bottom plate by a pin shaft, a protrusion is arranged on the lower end of the separation plate, the protrusion is located in the grooves on the two groups of sliders, and two groups of rollers are arranged on the separation plate, and the two groups of rollers are respectively located in the waist-shaped grooves on the two groups of sliders.

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