CN210093847U - Openable composite material protective shell with electromagnetic shielding function - Google Patents
Openable composite material protective shell with electromagnetic shielding function Download PDFInfo
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- CN210093847U CN210093847U CN201920323471.4U CN201920323471U CN210093847U CN 210093847 U CN210093847 U CN 210093847U CN 201920323471 U CN201920323471 U CN 201920323471U CN 210093847 U CN210093847 U CN 210093847U
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Abstract
The utility model relates to a combined material door correlation field specifically is a combined material protecting crust that can open and shut with electromagnetic shield function, aims at solving the poor technical problem of current combined material protecting crust electromagnetic shield effect. The door body is formed by a door panel and a second frame perpendicular to the door panel, the second frame is matched with the first frame, and the second frame and the first frame are attached to cover the door body and the shell; the door body includes door plant outer strata, first copper net layer and the door plant inlayer that sets gradually from the extroversion in, and the terminal surface of second frame and first frame laminating is provided with the annular recess of rectangle along this terminal surface, and the recess is embedded to be equipped with conductive adhesive tape, and conductive adhesive tape's thickness is greater than the degree of depth of recess, first copper net layer and conductive adhesive tape contact, and the second copper net layer has all been laid on the internal surface of casing and the surface of first frame.
Description
Technical Field
The utility model relates to a combined material door correlation field specifically is a combined material protecting crust that can open and shut with electromagnetic shield function.
Background
Electronic devices are often subject to various types of electromagnetic interference (including interference from themselves and interference from other devices) while operating, and may also generate electromagnetic interference to other devices. If the electromagnetic interference exceeds the allowable value of the equipment, the normal operation of the equipment is influenced. In order to ensure the normal operation of the electronic device, electromagnetic shielding must be considered when designing the structure of the electronic device. The shielding has 2 purposes: one is to limit the leakage of electromagnetic energy in the inner radiation area; secondly, external radiation is prevented from entering the region itself. If the external bearing space of the equipment is designed into a completely closed conductive shell, the 2 shielding purposes can be better realized. To achieve electrical conduction, it is most easily conceivable to use an all-metal protective housing. However, with the progress of society, the weight reduction and corrosion resistance requirements of protective shells in the industry are higher and higher, and the metal shell cannot meet the requirements. In the industry, people want to use a lighter and more corrosion-resistant composite material to manufacture the protective shell, however, the composite material is not conductive and cannot form a continuous conductive shield, so that the electromagnetic shielding effect is poor, which is a main factor restricting the application of the composite material protective shell.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the poor technical problem of current combined material protecting crust electromagnetic shield effect. Therefore, the utility model provides a combined material protecting crust that can open and shut with electromagnetic shield function.
The utility model provides a technical scheme that its technical problem adopted is:
a openable composite material protective shell with an electromagnetic shielding function comprises a shell and a door body, wherein the shell and the door body are both made of composite materials, the shell is of a cuboid cavity structure with an opening on one surface, the door body covers the opening surface of the shell, the edge of the opening surface of the shell is inwards protruded along the opening surface to form a rectangular annular first frame, the door body is composed of a door panel and a second frame perpendicular to the door panel, the second frame is matched with the first frame (namely the second frame is also of a rectangular annular structure and is close to or equal to the first frame in size so as to ensure that the second frame and the first frame can be attached), and the door body and the shell are attached to each other; the door body comprises a door plate outer layer, a first copper net layer and a door plate inner layer which are sequentially arranged from outside to inside, a rectangular annular groove is formed in the end face, attached to the first frame, of the second frame along the end face, a conductive adhesive tape is embedded in the groove, the thickness of the conductive adhesive tape is larger than the depth of the groove (the conductive adhesive tape can be in contact with the second copper net layer when the door body is covered), the first copper net layer is in contact with the conductive adhesive tape, and the second copper net layer is paved on the inner surface of the shell and the surface of the first frame. The utility model discloses a main innovation point just lies in: under the prerequisite of combined material preparation protective housing, through the cooperation of structures such as copper mesh, conducting strip, ingenious structure a electrically conductive continuous shield body structure, furthest has ensured the electromagnetic shield effect of combined material protective housing for the application and the popularization of combined material protective housing become possible.
Furthermore, a filler layer is arranged between the first copper mesh layer of the second frame and the inner layer of the door panel, or a filler layer is arranged between the first copper mesh layer of the second frame and the outer layer of the door panel.
Furthermore, the width of a binding surface formed by binding the second frame and the first frame is 15-60 mm.
Further, the edge of the first copper net layer is placed in the groove, and the edge is pressed and connected to the groove bottom of the groove through the conductive adhesive tape.
Furthermore, the mesh number of the first copper mesh layer and the second copper mesh layer is 50-120, and the thickness of the first copper mesh layer and the second copper mesh layer is 0.1-0.5 mm.
Furthermore, one outer side face of the second frame is connected with the outer side face of the corresponding shell through a hinge or a buckle.
The utility model has the advantages that:
the utility model provides a composite material protective shell that can open and shut with electromagnetic shield function, by the door body and the casing is constituteed, the door body is provided with first frame, the casing is provided with the second frame, the first frame and the second frame amalgamation form darker gap, electromagnetic shield effect is better, and the door body is more convenient with the connection cooperation of casing; the door body is of a three-layer structure, the middle of the door body is provided with a first copper mesh layer, the end face of the second frame is embedded with the conductive adhesive tape, the second copper mesh layer is laid on the inner surface of the shell and the surface of the first frame, when the door body is closed, the conductive adhesive tape is in contact with the second copper mesh layer, the first copper mesh layer, the conductive adhesive tape and the second copper mesh layer jointly form a conductive continuous shielding body structure, the electromagnetic shielding effect is better, and the application and popularization of the composite material protective shell become possible.
Drawings
Fig. 1 is a schematic sectional structure diagram of the protective shell of the present invention.
Detailed Description
Referring to fig. 1, the utility model discloses a but combined material protecting crust that opens and shuts with electromagnetic shield function, including casing 1 and the door body 2 that all are made by combined material, casing 1 is one side open-ended cuboid cavity structure, door body 2 covers the opening face at casing 1, the edge of the opening face of casing 1 forms the annular first frame 11 of rectangle along opening in-plane protrusion, door body 2 comprises door panel 21 and the second frame 22 perpendicular to door panel 21, second frame 22 and the adaptation of first frame 11 and both laminating realize that door body 2 closes with casing 1; the door body 2 comprises a door panel outer layer 23, a first copper mesh layer 24 and a door panel inner layer 25 which are sequentially arranged from outside to inside, a rectangular annular groove is formed in the end face, attached to the first frame 11, of the second frame 22, a conductive adhesive tape 3 is embedded in the groove, the thickness of the conductive adhesive tape 3 is larger than the depth of the groove, the first copper mesh layer 24 is in contact with the conductive adhesive tape 3, and the second copper mesh layer 4 is paved on the inner surface of the shell 1 and the surface of the first frame 11. Here, the connection between the door body 2 and the casing 1 may be a connection structure commonly used in the art, such as a hinge joint, a snap joint, or the like. When the door body 2 covers the shell 1, the first copper net layer 24 is in contact with the conductive adhesive tape 3, the conductive adhesive tape 3 is in contact with the second copper net layer 4, and thus the first copper net layer 24, the conductive adhesive tape 3 and the second copper net layer 4 jointly form a closed shielding body structure, the conductive continuity of the shielding body is guaranteed, and the electromagnetic shielding effect is good. Here, the thickness of the conductive adhesive tape 3 is greater than the depth of the groove, that is, when the door body 2 is covered on the housing 1, the conductive adhesive tape 3 can contact with the second copper mesh layer 4 on the surface of the first frame 11, so as to ensure the conductive continuity of the shielding body, and at the same time, the soft sealing between the door body 2 and the housing 1 is realized, so that the shielding effect is further improved.
Further, a filler layer 26 is disposed between the first copper mesh layer 24 of the second frame 22 and the door panel inner layer 25, or a filler layer 26 is disposed between the first copper mesh layer 24 of the second frame 22 and the door panel outer layer 23. The purpose of the filler layer 26 is to increase the width of the second frame 22 without increasing the material of the door panel, so that the contact area between the first frame 11 and the second frame 22 is increased, the width of the adhering surface is increased, a deep gap structure is formed, and the electromagnetic shielding effect is further improved. The filler may be an extender or the like. Specifically, the width of the joint surface formed by the second frame 22 and the first frame 11 is 15-60mm, and may be 15mm, 25mm, 35mm, 45mm, or 60 mm.
As a preferable mode of contacting the bead 3 with the first copper mesh layer 24, the edge of the first copper mesh layer 24 is placed in the groove, and is pressed by the bead 3 to the groove bottom of the groove. The contact is tight and more reliable.
Furthermore, the mesh number of the first copper mesh layer 24 and the mesh number of the second copper mesh layer 4 are 50-120, the thickness of the first copper mesh layer 24 and the thickness of the second copper mesh layer 4 are 0.1-0.5mm, the shielding effect is affected when the mesh number is too large, the cost of the copper mesh is increased when the mesh number is too small, and the size range is the more preferable mesh range obtained after calculation. Specifically, the mesh number of the first copper mesh layer 24 and the second copper mesh layer 4 can be 50, 70, 100 or 120, and the thickness of the first copper mesh layer 24 and the second copper mesh layer 4 can be 0.1mm, 0.3mm or 0.5 mm.
As an optimal connection structure of the door body 2 and the shell 1, one outer side face of the second frame 22 is connected with the corresponding outer side face of the shell 1 through a hinge or a buckle, and on the basis that the door body 2 is reliably connected, the first frame 11 and the second frame 22 can be tightly attached.
While the invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a combined material protecting crust that can open and shut with electromagnetic shield function, includes casing (1) and the door body (2) that all make by combined material, casing (1) is one side open-ended cuboid cavity structure, door body (2) lid closes the opening face at casing (1), its characterized in that: the edge of the opening surface of the shell (1) is inwards protruded along the opening surface to form a rectangular annular first frame (11), the door body (2) is composed of a door panel (21) and a second frame (22) perpendicular to the door panel (21), the second frame (22) is matched with the first frame (11), and the second frame (22) and the first frame (11) are attached to cover the door body (2) and the shell (1); the door body (2) comprises an outer door plate layer (23), a first copper net layer (24) and an inner door plate layer (25) which are sequentially arranged from outside to inside, a rectangular annular groove is formed in the end face, attached to the first frame (11), of the second frame (22), a conductive adhesive tape (3) is embedded in the groove, the thickness of the conductive adhesive tape (3) is larger than the depth of the groove, the first copper net layer (24) is in contact with the conductive adhesive tape (3), and the second copper net layer (4) is paved on the inner surface of the shell (1) and the surface of the first frame (11).
2. The openable composite material casing with electromagnetic shielding function as claimed in claim 1, wherein: and a filler layer (26) is arranged between the first copper mesh layer (24) of the second frame (22) and the inner layer (25) of the door panel, or a filler layer (26) is arranged between the first copper mesh layer (24) of the second frame (22) and the outer layer (23) of the door panel.
3. A composite openable and closable casing having electromagnetic shielding function as claimed in claim 2, wherein: the width of a binding surface formed by binding the second frame (22) and the first frame (11) is 15-60 mm.
4. The openable composite material casing with electromagnetic shielding function as claimed in claim 1, wherein: the edge of the first copper net layer (24) is placed in the groove, and the edge is pressed and connected to the groove bottom of the groove through the conductive adhesive tape (3).
5. The openable composite material casing with electromagnetic shielding function as claimed in claim 1, wherein: the mesh number of the first copper mesh layer (24) and the mesh number of the second copper mesh layer (4) are 50-120, and the thickness of the first copper mesh layer (24) and the thickness of the second copper mesh layer (4) are 0.1-0.5 mm.
6. A composite openable and closable casing according to any one of claims 1 to 5, wherein: one outer side face of the second frame (22) is connected with the outer side face of the corresponding shell (1) through a hinge or a buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323471.4U CN210093847U (en) | 2019-03-14 | 2019-03-14 | Openable composite material protective shell with electromagnetic shielding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323471.4U CN210093847U (en) | 2019-03-14 | 2019-03-14 | Openable composite material protective shell with electromagnetic shielding function |
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| Publication Number | Publication Date |
|---|---|
| CN210093847U true CN210093847U (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920323471.4U Active CN210093847U (en) | 2019-03-14 | 2019-03-14 | Openable composite material protective shell with electromagnetic shielding function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109952012A (en) * | 2019-03-14 | 2019-06-28 | 山西平阳重工机械有限责任公司 | A kind of openable and closable composite protection shell with electro-magnetic screen function |
-
2019
- 2019-03-14 CN CN201920323471.4U patent/CN210093847U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109952012A (en) * | 2019-03-14 | 2019-06-28 | 山西平阳重工机械有限责任公司 | A kind of openable and closable composite protection shell with electro-magnetic screen function |
| CN109952012B (en) * | 2019-03-14 | 2023-11-03 | 山西平阳重工机械有限责任公司 | Openable composite material protective shell with electromagnetic shielding function |
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