CN110730610B - Electromagnetic shielding cabinet - Google Patents
Electromagnetic shielding cabinet Download PDFInfo
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- CN110730610B CN110730610B CN201911161805.3A CN201911161805A CN110730610B CN 110730610 B CN110730610 B CN 110730610B CN 201911161805 A CN201911161805 A CN 201911161805A CN 110730610 B CN110730610 B CN 110730610B
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- cabinet body
- electromagnetic shielding
- electromagnetic
- pipe
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- 239000000110 cooling liquid Substances 0.000 claims abstract description 33
- 230000017525 heat dissipation Effects 0.000 claims abstract description 23
- 229920001971 elastomer Polymers 0.000 claims abstract description 19
- 239000000806 elastomer Substances 0.000 claims abstract description 19
- 229920000742 Cotton Polymers 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 230000008094 contradictory effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 238000000071 blow moulding Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a high-performance electromagnetic shielding cabinet, relates to the technical field of cabinets, and aims to solve the problem that the existing high-efficiency heat dissipation and the existing electromagnetic shielding are contradictory. The upper end of the cabinet body is provided with the installation cavity, the below of installation cavity is provided with the base, all be provided with first electrically conductive elastomer between first electromagnetic shield board and the second electromagnetic shield board, the inner wall of first electromagnetic shield board and second electromagnetic shield board all is provided with hollow cotton, the inside of back cabinet is provided with the cooling liquid tank, the rear end of cooling liquid tank is provided with the radiating seat the internally mounted of the cabinet body has places the board, place the bottom of board and all install the coiled pipe, the one end that the coiled pipe is close to the installation cavity is provided with the outlet pipe, the one end that the coiled pipe is close to the base is provided with the inlet tube, be a plurality of air vents of rectangular array on placing the board, the inside of installation cavity is provided with out the wind pipeline, the inside of base is provided with the air inlet pipeline.
Description
Technical Field
The invention relates to the technical field of cabinets, in particular to a high-performance electromagnetic shielding cabinet.
Background
Along with the gradual deepening of people's understanding of the harm of electromagnetic leakage emission of a secret-related information system, various electromagnetic leakage emission prevention means are adopted in large quantities when a secret-related information network is built, including the construction of an electromagnetic shielding room, the laying of an optical cable and a shielding twisted pair, the use of low-radiation equipment, a red and black power isolation socket and a shielding cabinet, wherein the shielding cabinet has the characteristics of small size, convenience in installation and flexibility in use, and is very suitable for being used in occasions where the electromagnetic shielding room is not suitable to be installed and the information equipment needs to be protected.
However, in order to meet the heat dissipation requirement of the internal components, the existing electromagnetic shielding cabinet needs to be provided with a heat dissipation mechanism, and the efficient heat dissipation and the stronger electromagnetic shielding are contradictory, so that the problem that the overall electromagnetic shielding effect is poor is caused on the premise of meeting the efficient heat dissipation, and the existing requirement is not met.
Disclosure of Invention
The invention aims to provide a high-performance electromagnetic shielding cabinet, which solves the problem that the high-efficiency heat dissipation and the whole electromagnetic shielding are contradictory in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a high performance electromagnetic shield rack, includes the cabinet body, the top of the cabinet body is provided with the installation cavity, the below of the cabinet body is provided with the base, the both sides of cabinet body inner wall all are provided with first electromagnetic shield board, the upper and lower both ends of cabinet body inner wall all are provided with the second electromagnetic shield board, all be provided with first conductive elastomer between first electromagnetic shield board and the second electromagnetic shield board, the inner wall of first electromagnetic shield board and second electromagnetic shield board all is provided with hollow cotton, the rear end of the cabinet body is provided with the back cabinet, the inside of back cabinet is provided with the cooling liquid case, the rear end of cooling liquid case is provided with the radiating seat, one side of radiating seat is provided with the radiating fin, and the radiating fin distributes in proper order, the force (forcing) pump is installed to one side of cooling liquid case, the internally mounted of the cabinet body has place the board, places the board and installs a plurality of, and places the board and distribute in proper order, the bottom of placing the board all installs the pipe between the coiled pipe, install between the coiled pipe cabinet, the inside of the cabinet is provided with the cooling liquid case, the inside pipe is provided with the cooling liquid case to the inside of the air inlet pipe, the inside of the cabinet is provided with the inlet tube, the inside of the inlet tube extends to the air inlet tube, the air inlet pipe is provided with the inside of the air inlet pipe, and extends to the inside of the air inlet pipe, and the air inlet pipe is provided with the inside of the air inlet pipe, and the air inlet pipe to the inside of the air inlet pipe, and the inside is extended to the inside of the air inlet pipe.
Preferably, the cabinet door is installed to one side of the cabinet body, and the cabinet door is connected through the hinge rotation with the cabinet body, the inside of cabinet door all is provided with the electrically conductive elastomer of second, and the electrically conductive elastomer of second is pasted with the cabinet door and is connected.
Preferably, the coiled pipe is fixedly connected with the placing plate, the upper end face of the coiled pipe is attached to the bottom end of the placing plate, heat conducting fins are arranged on two sides of the coiled pipe, the connecting pipe is in sealing connection with the coiled pipe, the water outlet pipe is communicated with the cooling liquid tank, and the water inlet pipe is in sealing connection with the pressurizing pump.
Preferably, the heat conducting fin is attached to the coiled pipe, and the heat conducting fin is fixedly connected with the placing plate.
Preferably, the cooling liquid tank is fixed with the radiating seat through bolts, the radiating fins are connected with the radiating seat in a welding mode, and the radiating fins extend to the outside of the rear cabinet.
Preferably, the first electromagnetic shielding plate and the second electromagnetic shielding plate are adhered and connected through the first conductive elastomer, the first electromagnetic shielding plate is fixedly connected with the cabinet body, and the second electromagnetic shielding plate is fixedly connected with the cabinet body.
Preferably, the hollow cotton is respectively in adhesive connection with the first electromagnetic shielding plate and the second electromagnetic shielding plate.
Preferably, the inside of air-out pipeline and air inlet pipeline all is provided with down electromagnetic absorption piece and goes up electromagnetic absorption piece, and down electromagnetic absorption piece and last electromagnetic absorption piece interval distribution, the interval between lower electromagnetic absorption piece and the last electromagnetic absorption piece is forty millimeters, the fan is all installed to the other end of air-out pipeline and air inlet pipeline, the front end of fan all is provided with the dust filter net.
Preferably, the fan is fixed with the air outlet pipeline and the air inlet pipeline through bolts respectively, and the dust filtering net is connected with the air outlet pipeline and the air inlet pipeline through clamping grooves respectively.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the bottom of each placing plate is provided with the coiled pipe, the coiled pipes are connected in a sealing manner through the connecting pipes, in the heat dissipation process, the pressurizing pump is started to pump out the cooling liquid in the cooling liquid tank, the cooling liquid enters the coiled pipe through the water inlet pipe, and because the coiled pipe is attached to the bottom of the placing plate, the internal element emits heat, and meanwhile, the heat is influenced by the heat conduction effect and is transferred to the placing plate, and then the heat is transferred to the coiled pipe through the placing plate, the heat exchange is generated between the cooling temperature on the coiled pipe and the placing plate, so that the upper working element is dissipated, meanwhile, the heat transfer area is further increased, the heat dissipation effect is further improved, and the shielding cabinet is cooled in such a cooling manner.
2. According to the cooling device, the heat radiating seat is arranged at the rear end of the cooling liquid tank, and is attached to the cooling liquid tank, when the cooling device works, the heat radiating seat can absorb heat in the cooling liquid tank, the heat radiating fins are arranged at one end of the heat radiating seat and extend to the outside of the rear cabinet, and the heat reserved on the heat radiating seat is further led out, so that cooling liquid in the cooling liquid tank is cooled, efficient and rapid heat radiating work in the cabinet body is guaranteed, and the arrangement of the cooling device is reduced through the arrangement of the heat radiating seat and the heat radiating fins, so that the energy loss is reduced while timely heat radiation is guaranteed.
3. According to the invention, the first electromagnetic shielding plate and the second electromagnetic shielding plate are respectively arranged in the cabinet body, the first electromagnetic shielding plate is a side plate, the second electromagnetic shielding plate is an upper plate and a lower plate, and as the non-conductive gaps are easily formed at the joints of different parts in the common plate body connection, the phenomenon of electromagnetic leakage is generated.
4. According to the invention, the hollow cotton is arranged on the inner sides of the first electromagnetic shielding plate and the second electromagnetic shielding plate, and as a plurality of irregular cavities exist in the hollow cotton, the internal elements and the electromagnetic shielding plates can be blocked, and the magnetic flux passing through the shielded object body is reduced.
5. According to the invention, the air outlet pipeline and the air inlet pipeline are respectively arranged at the upper end and the lower end of the cabinet body, the upper electromagnetic absorption sheets and the lower electromagnetic absorption sheets which are distributed at intervals in the pipeline are arranged in the pipeline, and the air in the cabinet body is circulated by starting the fan, so that the air in the cabinet body and the external air are ensured to be in a state of exchanging at any time, on one hand, the corrosion and the moisture phenomenon caused by long-term sealing of the interior is avoided, on the other hand, the electromagnetic absorption sheets can be matched with the coiled pipe to carry out auxiliary heat dissipation, and the distribution of the electromagnetic absorption sheets can change the airflow flow of the ventilating pipeline from a straight line to a curve, and the electromagnetic signal is absorbed on the premise of not influencing ventilation, so that the signal leakage is avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an overall side view of the present invention;
FIG. 3 is a schematic view of a placement plate structure of the present invention;
FIG. 4 is a perspective view showing the structure of the electromagnetic shielding plate at the corners of the electromagnetic shielding plate;
FIG. 5 is a schematic view showing the internal structure of the ventilating duct according to the present invention;
fig. 6 is an enlarged partial view of the area a of the present invention.
In the figure: 1. a cabinet body; 2. a cabinet door; 3. a mounting cavity; 4. a base; 5. a first electromagnetic shield plate; 6. a second electromagnetic shield plate; 7. a first conductive elastomer; 8. hollow cotton; 9. placing a plate; 10. a water outlet pipe; 11. a serpentine tube; 12. a heat conductive sheet; 13. a vent hole; 14. a water inlet pipe; 15. a connecting pipe; 16. an air outlet pipeline; 17. an air inlet pipeline; 18. a lower electromagnetic absorption sheet; 19. an electromagnetic absorption sheet is arranged on the upper part; 20. a fan; 21. a second conductive elastomer; 22. a rear cabinet; 23. a cooling liquid tank; 24. a heat dissipation seat; 25. a heat radiation fin; 26. a pressurizing pump; 27. a dust filtering net.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-6, an embodiment of the present invention is provided: the high-performance electromagnetic shielding cabinet comprises a cabinet body 1, a mounting cavity 3 is arranged above the cabinet body 1, a base 4 is arranged below the cabinet body 1, first electromagnetic shielding plates 5 are arranged on two sides of the inner wall of the cabinet body 1, second electromagnetic shielding plates 6 are arranged at the upper end and the lower end of the inner wall of the cabinet body 1, a first conductive elastomer 7 is arranged between the first electromagnetic shielding plates 5 and the second electromagnetic shielding plates 6, hollow cotton 8 is arranged on the inner walls of the first electromagnetic shielding plates 5 and the second electromagnetic shielding plates 6, a rear cabinet 22 is arranged at the rear end of the cabinet body 1, a cooling liquid tank 23 is arranged inside the rear cabinet 22, a heat dissipation seat 24 is arranged at the rear end of the cooling liquid tank 23, heat dissipation fins 25 are arranged on one side of the heat dissipation seat 24, a plurality of heat dissipation fins 25 are arranged, and the heat dissipation fins 25 are distributed in sequence, the force (forcing) pump 26 is installed to one side of cooling liquid tank 23, the internally mounted of cabinet body 1 has place board 9, place board 9 installs a plurality of, and place board 9 and distribute in proper order, place the bottom of board 9 and all install coiled pipe 11, install connecting pipe 15 between the coiled pipe 11, coiled pipe 11 is close to the one end of installing the chamber 3 and is provided with outlet pipe 10, and outlet pipe 10 passes cabinet body 1 and extends to the inside of back cabinet 22, coiled pipe 11 is close to the one end of base 4 and is provided with inlet tube 14, and inlet tube 14 passes cabinet body 1 and extends to the inside of back cabinet 22, place the board 9 and be provided with a plurality of air vents 13 in rectangular array, the inside of installing the chamber 3 is provided with air-out pipeline 16, and the one end of air-out pipeline 16 extends to the inside of cabinet body 1, the inside of base 4 is provided with air inlet pipeline 17, and the one end of air inlet pipeline 17 extends to the inside of cabinet body 1.
Further, cabinet door 2 is installed to one side of cabinet body 1, and cabinet door 2 and cabinet body 1 pass through the hinge and rotate to be connected, and the inside of cabinet door 2 all is provided with second conductive elastomer 21, and second conductive elastomer 21 and cabinet door 2 paste and be connected, when cabinet door 2 closes, second conductive elastomer 21 contacts with cabinet body 1, and then can reduce the gap when closing, eliminates non-conductive point, improves holistic shielding performance.
Further, coiled pipe 11 with place board 9 fixed connection, and coiled pipe 11's up end is laminated mutually with the bottom of placing board 9, coiled pipe 11's both sides all are provided with conducting strip 12, connecting pipe 15 and coiled pipe 11 sealing connection, outlet pipe 10 is linked together with coolant tank 23, inlet tube 14 and force (forcing) pump 26 sealing connection, on the one hand coiled pipe 11 of placing board 9 bottom can carry out the high-efficient heat dissipation to the top component, on the other hand, at the in-process of heat transfer, only inlet tube 14 and outlet pipe 10 communicate to outside, greatly reduced the space with external contact, guarantee the internal shielding effect.
Further, the heat conducting fin 12 is attached to the coiled pipe 11, and the heat conducting fin 12 is fixedly connected with the placing plate 9, and the heat conducting fin 12 fixed to the placing plate 9 is attached to two sides of the coiled pipe 11, so that the heat transfer area is further increased, and the heat dissipation effect is further improved.
Further, the cooling liquid tank 23 is fixed with the cooling seat 24 through the bolt, the cooling fins 25 are connected with the cooling seat 24 in a welded mode, the cooling fins 25 extend to the outside of the rear cabinet 22, the cooling seat 24 can absorb heat in the cooling liquid tank 23, the cooling fins 25 are arranged at one end of the cooling seat 24, the cooling fins 25 extend to the outside of the rear cabinet 22, and the heat reserved on the cooling seat 24 is further conducted out.
Further, the first electromagnetic shielding plate 5 and the second electromagnetic shielding plate 6 are adhered and connected through the first conductive elastomer 7, the first electromagnetic shielding plate 5 is fixedly connected with the cabinet body 1, the second electromagnetic shielding plate 6 is fixedly connected with the cabinet body 1, the conductive elastomer is mainly formed by mixing polyvinyl chloride resin into absorbing substances, hollow plastic wedges are manufactured through casting or blow molding, the absorbing substances such as ferrite, graphite and the like are filled in the wedges, and the hollow plastic wedges are high-performance absorbing materials, so that non-conductive points are eliminated, and the overall shielding performance is improved.
Further, the hollow cotton 8 is respectively adhered to the first electromagnetic shielding plate 5 and the second electromagnetic shielding plate 6, and as a plurality of irregular cavities exist in the hollow cotton 8, the internal elements and the electromagnetic shielding plates can be blocked, and the magnetic flux passing through the shielded object body is reduced.
Further, the inside of air-out pipeline 16 and air inlet pipeline 17 all is provided with electromagnetic absorption piece 18 and goes up electromagnetic absorption piece 19 down, and electromagnetic absorption piece 18 and last electromagnetic absorption piece 19 interval distribution down, and the interval between electromagnetic absorption piece 18 and the last electromagnetic absorption piece 19 is forty millimeters down, and fan 20 is all installed to the other end of air-out pipeline 16 and air inlet pipeline 17, and fan 20's front end all is provided with dust filter net 27, and electromagnetic absorption piece's distribution can become the air current flow of air pipe by sharp curve, under the prerequisite that does not influence ventilation, absorbs electromagnetic signal to avoid the signal to leak.
Further, the fan 20 is fixed with the air outlet pipeline 16 and the air inlet pipeline 17 through bolts respectively, the dust filtering net 27 is connected with the air outlet pipeline 16 and the air inlet pipeline 17 through clamping grooves respectively, and by starting the fan 20, air in the cabinet body 1 circulates, so that the air in the cabinet body 1 and the air outside are in a state of exchanging at any time, and meanwhile, dust entering can be avoided due to the arrangement of the dust filtering net 27.
Working principle: when in use, the pressurizing pump 26 is started, the pressurizing pump 26 pumps the cooling liquid in the cooling liquid tank 23, the cooling liquid enters the inside of the coiled pipe 11 through the water inlet pipe 14, the coiled pipe 11 is attached to the bottom of the placing plate 9, the internal element radiates heat, and meanwhile, the internal element is influenced by heat conduction effect, the internal element radiates heat, the internal element is transferred to the coiled pipe 11, heat exchange is generated between the cooling temperature on the coiled pipe 11 and the placing plate 9, thus radiating the working element above, meanwhile, the heat conducting fin 12 fixed with the placing plate 9 is attached to the two sides of the coiled pipe 11, the heat transfer area is further increased, the heat radiation effect is further improved, in the radiating process, the radiating seat 24 can absorb the heat in the cooling liquid tank 23, the radiating fin 25 extends to the outside of the rear cabinet 22 through the arrangement of the radiating fin 25 at one end of the radiating seat 24, the heat stored on the heat radiating seat 24 is further conducted, so that the cooling liquid in the cooling liquid tank 23 is cooled, the efficient and rapid heat radiating work inside the cabinet body 1 is guaranteed, only the water inlet pipe 14 and the water outlet pipe 10 are communicated to the outside in the heat exchange process, the space contacted with the outside is greatly reduced, the internal shielding effect is guaranteed, meanwhile, the first electromagnetic shielding plate 5 and the second electromagnetic shielding plate 6 are respectively arranged inside the cabinet body 1, the first electromagnetic shielding plate 5 is a side plate, the second electromagnetic shielding plate 6 is an upper plate and a lower plate, the first conductive elastomer 7 is arranged at the joint of the first electromagnetic shielding plate 5 and the second electromagnetic shielding plate 6, the conductive elastomer is mainly made of polyvinyl chloride resin and is doped with an absorbing substance, hollow plastic wedges are made by a casting or blow molding method, and the wedges are filled with the absorbing substance, such as ferrite, graphite and the like are high-performance absorbing materials, non-conductive points are eliminated, the overall shielding performance is improved, hollow cotton 8 is arranged on the inner sides of a first electromagnetic shielding plate 5 and a second electromagnetic shielding plate 6, a plurality of irregular cavities exist in the hollow cotton 8, internal elements and the electromagnetic shielding plates can be blocked, magnetic flux passing through a shielded object is reduced, an air outlet pipeline 16 and an air inlet pipeline 17 are respectively arranged at the upper end and the lower end of a cabinet body 1, upper electromagnetic absorbing sheets 19 and lower electromagnetic absorbing sheets 18 which are distributed at intervals in a staggered mode are arranged in the pipelines, air in the cabinet body 1 circulates through a starting fan 20, accordingly, the condition that the air in the cabinet body 1 exchanges with external air at any time is guaranteed, the distribution of the electromagnetic absorbing sheets can change the airflow of the ventilation pipeline from a straight line to a curve, electromagnetic signals are absorbed on the premise that ventilation is not influenced, and accordingly signal leakage is avoided.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. Electromagnetic shielding cabinet, including cabinet body (1), its characterized in that: the utility model discloses a heat dissipation device, including cabinet body (1), heat dissipation seat (24), heat dissipation fin (25) and coil (9) are placed between the inner wall of cabinet body (1), the top of cabinet body (1) is provided with installation cavity (3), the below of cabinet body (1) is provided with base (4), the both sides of cabinet body (1) inner wall all are provided with first electromagnetic shield board (5), the upper and lower both ends of cabinet body (1) inner wall all are provided with second electromagnetic shield board (6), all be provided with first conductive elastomer (7) between first electromagnetic shield board (5) and second electromagnetic shield board (6), the inner wall of first electromagnetic shield board (5) and second electromagnetic shield board (6) all is provided with hollow cotton (8), the rear end of cabinet body (1) is provided with back cabinet (22), the inside of back cabinet (22) is provided with liquid cooling case (23), the rear end of cooling liquid case (23) is provided with heat dissipation seat (24), one side of heat dissipation seat (24) is provided with heat dissipation fin (25), and fin (25) distribute in proper order, coil (9) are placed between coil (9) and place between the connecting pipe (9) are placed in proper order to inner wall (9), the utility model discloses a device for absorbing electromagnetic wave, which is characterized in that a water outlet pipe (10) is arranged at one end of a coiled pipe (11) close to an installation cavity (3), the water outlet pipe (10) penetrates through a cabinet body (1) to extend to the inside of a rear cabinet (22), a water inlet pipe (14) is arranged at one end of the coiled pipe (11) close to a base (4), the water inlet pipe (14) penetrates through the cabinet body (1) to extend to the inside of the rear cabinet (22), a plurality of vent holes (13) are arranged on a placing plate (9) in a rectangular array, an air outlet pipeline (16) is arranged in the installation cavity (3), one end of the air outlet pipeline (16) extends to the inside of the cabinet body (1), an air inlet pipeline (17) is arranged in the inside of the base (4), one end of the air inlet pipeline (17) extends to the inside of the cabinet body (1), a first electromagnetic shielding plate (5) and a second electromagnetic shielding plate (6) are fixedly connected with the cabinet body (1) through a first conductive elastomer (7), electromagnetic shielding plates (5) are fixedly connected with the cabinet body (1), electromagnetic shielding plates (19) are fixedly connected with the air outlet pipeline (16) and are arranged on the upper electromagnetic wave absorbing plates (19) and lower electromagnetic wave absorbing plates (19) respectively, the distance between the lower electromagnetic absorption sheet (18) and the upper electromagnetic absorption sheet (19) is forty millimeters, fans (20) are installed at the other ends of the air outlet pipeline (16) and the air inlet pipeline (17), and dust filtering nets (27) are arranged at the front ends of the fans (20).
2. An electromagnetic shielding cabinet according to claim 1, wherein: the cabinet is characterized in that a cabinet door (2) is arranged on one side of the cabinet body (1), the cabinet door (2) is rotationally connected with the cabinet body (1) through a hinge, a second conductive elastomer (21) is arranged in the cabinet door (2), and the second conductive elastomer (21) is adhered to and connected with the cabinet door (2).
3. An electromagnetic shielding cabinet according to claim 1, wherein: the utility model discloses a cooling device for a solar heat collecting device, including coiled pipe (11), cooling liquid tank (23), inlet tube (14), coiled pipe (11) and place board (9) fixed connection, and the up end of coiled pipe (11) is laminated mutually with the bottom of placing board (9), both sides of coiled pipe (11) all are provided with conducting strip (12), connecting pipe (15) and coiled pipe (11) sealing connection, outlet pipe (10) are linked together with cooling liquid tank (23), inlet tube (14) and force (forcing) pump (26) sealing connection.
4. An electromagnetic shielding cabinet according to claim 3, wherein: the heat conducting fin (12) is attached to the coiled pipe (11), and the heat conducting fin (12) is fixedly connected with the placing plate (9).
5. An electromagnetic shielding cabinet according to claim 1, wherein: the cooling liquid tank (23) is fixed with the radiating seat (24) through bolts, the radiating fins (25) are connected with the radiating seat (24) in a welding mode, and the radiating fins (25) extend to the outside of the rear cabinet (22).
6. An electromagnetic shielding cabinet according to claim 1, wherein: the hollow cotton (8) is respectively in adhesive connection with the first electromagnetic shielding plate (5) and the second electromagnetic shielding plate (6).
7. An electromagnetic shielding cabinet according to claim 1, wherein: the fan (20) is fixed with the air outlet pipeline (16) and the air inlet pipeline (17) through bolts respectively, and the dust filtering net (27) is connected with the air outlet pipeline (16) and the air inlet pipeline (17) through clamping grooves respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911161805.3A CN110730610B (en) | 2019-11-25 | 2019-11-25 | Electromagnetic shielding cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911161805.3A CN110730610B (en) | 2019-11-25 | 2019-11-25 | Electromagnetic shielding cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110730610A CN110730610A (en) | 2020-01-24 |
| CN110730610B true CN110730610B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911161805.3A Active CN110730610B (en) | 2019-11-25 | 2019-11-25 | Electromagnetic shielding cabinet |
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| Country | Link |
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| CN (1) | CN110730610B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111629552A (en) * | 2020-06-30 | 2020-09-04 | 北京无线电测量研究所 | Noise-reduction vibration-isolation cabinet |
| CN112083768B (en) * | 2020-07-30 | 2022-08-30 | 山东工程职业技术大学 | High-performance computer heat dissipation ash falling prevention case |
| CN115802663A (en) * | 2022-11-18 | 2023-03-14 | 天津天传电气传动有限公司 | Outdoor all-in-one machine with high power, high protection and strong radiation resistance and disturbance resistance performance |
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