CN219834773U - Multifunctional electromagnetic shielding ventilation device with rainproof function - Google Patents
Multifunctional electromagnetic shielding ventilation device with rainproof function Download PDFInfo
- Publication number
- CN219834773U CN219834773U CN202321000636.7U CN202321000636U CN219834773U CN 219834773 U CN219834773 U CN 219834773U CN 202321000636 U CN202321000636 U CN 202321000636U CN 219834773 U CN219834773 U CN 219834773U
- Authority
- CN
- China
- Prior art keywords
- shell
- rotating rod
- plate
- electromagnetic shielding
- rainproof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 230000017525 heat dissipation Effects 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 10
- 241001233242 Lontra Species 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model provides a multifunctional electromagnetic shielding ventilation device with a rainproof function. The multifunctional electromagnetic shielding ventilation device with the rainproof function comprises: the device comprises a shell, a grid plate and two rainproof mechanisms, wherein the grid plate is fixedly arranged in the shell, and the two rainproof mechanisms are arranged on the shell; the rainproof mechanism comprises a mounting box, a first rotating rod, a connecting block, a rain shield plate, a mounting rod, a sealing plate, a first conical gear, a second rotating rod, a gear motor and a motor controller. The multifunctional electromagnetic shielding ventilation device with the rainproof function is simple to operate, can strengthen the radiating effect in the shell, can prevent rainwater from entering the shell through blocking, has a good rainproof function, and can conveniently adjust the temperature in the shell by adjusting the angle of the air port.
Description
Technical Field
The utility model belongs to the technical field of multifunctional electromagnetic shielding ventilation devices with a rainproof function, and particularly relates to a multifunctional electromagnetic shielding ventilation device with a rainproof function.
Background
The shielding facility and the electronic device are closed cases made of sheet metal, and are important structures for preventing coupling of high-energy electromagnetic waves from the outside to the inside of the shielding facility and the electronic device or preventing coupling of electromagnetic waves from the inside to the outside of the shielding facility and the electronic device. In order to ensure ventilation and air conditioning, ventilation ducts or vents are provided. Because the holes can generate serious electromagnetic wave coupling, the electromagnetic shielding effectiveness is greatly reduced, and an electromagnetic shielding ventilation device which can ventilate and attenuate electromagnetic waves is required to be additionally arranged.
Through retrieving, in the related art, the patent document of the publication number CN201657590U is entitled, and a multifunctional electromagnetic shielding ventilation device with dustproof and rainproof capabilities is disclosed, which is characterized in that: the device at least comprises a straight hole type steel waveguide, a rain-proof type steel waveguide with an inclination angle of 30-60 degrees, a conductive liner, a metal frame and a stainless steel net; the steel waveguide and the periphery of the inner side of the metal frame are fixed by vacuum welding; the stainless steel net is fixedly connected with the metal frame by bolts; and a conductive gasket is attached to the contact part of the mounting wall surface of the metal frame to form integral seal. The multifunctional electromagnetic shielding ventilation device with the dustproof and rainproof capabilities is small in wind resistance, high in shielding efficiency, convenient to install, capable of preventing dust and rainproof, and suitable for various shielding facilities and electronic equipment.
With respect to the related art in the above, the inventors consider that there are the following drawbacks:
1. although the ventilating device has certain rainproof and electromagnetic shielding capabilities, the ventilating device keeps a ventilating state all the time, is not beneficial to adjusting the indoor or cabin temperature, and has the rainproof and dustproof capabilities to be further improved.
Therefore, it is necessary to provide a new multifunctional electromagnetic shielding ventilation device with a rainproof function to solve the above technical problems.
Disclosure of Invention
The multifunctional electromagnetic shielding ventilation device with the rainproof function is simple to operate, can strengthen the radiating effect in the shell, can prevent rainwater from entering the shell through blocking, has a good rainproof function, and can conveniently adjust the temperature in the shell by adjusting the angle of the air port.
In order to solve the technical problems, the multifunctional electromagnetic shielding ventilation device with the rainproof function provided by the utility model comprises: the device comprises a shell, a grid plate and two rainproof mechanisms, wherein the grid plate is fixedly arranged in the shell, and the two rainproof mechanisms are arranged on the shell;
the rain-proof mechanism comprises a mounting box, a first rotating rod, a connecting block, a rain shield plate, a mounting rod, a sealing plate, a first conical gear, a second rotating rod, a gear motor and a motor controller, wherein the mounting box is fixedly arranged on the top of a shell, one rotating rod is rotatably arranged in the mounting box, the connecting block is fixedly arranged on the first rotating rod, the top of the connecting block extends out of one side of the mounting box and is movably connected with the mounting box, the rain shield plate is arranged above the top of the shell, the bottom of the rain shield plate is fixedly connected with the top of the connecting block, the mounting rod is fixedly arranged on the bottom of the rain shield plate, the sealing plate is arranged above the top of the shell, the top of the sealing plate is fixedly connected with the bottom of the mounting rod, the first conical gear is fixedly sleeved on the first rotating rod, the second conical gear is arranged in the mounting box, the second conical gear is meshed with the first conical gear, the second rotating rod is rotatably arranged on the inner wall of the top of the shell, the top of the second rotating rod extends into the mounting box and is fixedly connected with the second conical gear motor, the second rotating rod is fixedly connected with the second rotating rod, and the second rotating rod is fixedly connected with the top of the motor controller.
As a further scheme of the utility model, an air outlet is formed in the top of the shell, an air inlet is formed in the bottom of the shell, and the air outlet is matched with the two sealing plates.
As a further scheme of the utility model, the mounting box is provided with a through hole, the through hole is matched with the connecting block, the corresponding rain shielding plate and the corresponding sealing plate are fixedly provided with triangular rain shielding blocks, the top of the grid plate is fixedly provided with a heat dissipation fan, and the heat dissipation fan is positioned below the air outlet.
As a further scheme of the utility model, the EMC shielding ventilation screen plate is arranged in the air outlet, the filter plate is arranged at the bottom of the EMC shielding ventilation screen plate, four grooves are formed in the bottom of the filter plate, the four grooves correspond to each other in pairs, and limit slots are formed in the inner wall of one side of each groove.
As a further scheme of the utility model, four limit assemblies are arranged at the bottom of the shell, each limit assembly comprises a mounting block, an L-shaped rod, a limit insert block, a baffle plate and a return spring, each mounting block is fixedly arranged on the inner wall of the top of the shell, each L-shaped rod is slidably arranged on each mounting block, one end of each L-shaped rod extends into each groove and is slidably connected with each groove, each limit insert block is arranged in each groove, each limit insert block is fixedly arranged on each L-shaped rod, each limit insert block is matched with each limit slot, each baffle plate is fixedly arranged at one end, far away from each limit insert block, of each L-shaped rod, each return spring is slidably sleeved on each L-shaped rod, one end of each return spring is fixedly connected with each mounting block, and the other end of each return spring is fixedly connected with each baffle plate, and the four baffle plates are connected through two fixing blocks.
As a further scheme of the utility model, a water absorbing and drying net is arranged in the air inlet, a dust-proof plate is arranged at the bottom of the water absorbing and drying net, a perforated metal plate is arranged at the bottom of the shell, the perforated metal plate is connected with the dust-proof plate, and the perforated metal plate is connected with the bottom of the shell through four bolts.
As a further scheme of the utility model, a temperature sensor is arranged on the inner wall of one side of the shell, a PLC controller is arranged on the inner wall of one side of the shell, which is far away from the temperature sensor, the temperature sensor is connected with the PLC controller, and the PLC controller is connected with the motor controller and the cooling fan.
Compared with the related art, the multifunctional electromagnetic shielding ventilation device with the rainproof function has the following beneficial effects:
1. according to the utility model, the rainproof mechanism and the radiating fan are matched, so that the operation is simple, the radiating effect in the shell can be enhanced, rainwater is prevented from entering the shell by blocking, a good rainproof function is formed, and the temperature in the shell is conveniently adjusted by adjusting the angle of the air opening.
Drawings
The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;
FIG. 3 is a schematic perspective view of a housing according to the present utility model;
FIG. 4 shows a perspective assembly of a first rotating rod, a first bevel gear, a second bevel gear and a second rotating rod according to the present utility model.
In the figure: 1. a housing; 2. a grid plate; 3. a mounting box; 4. a first rotating rod; 5. a connecting block; 6. a rain shield; 7. a mounting rod; 8. a sealing plate; 9. a first conical gear; 10. a second bevel gear; 11. a second rotating rod; 12. a speed reducing motor; 13. a motor controller; 14. triangular rain shielding blocks; 15. a heat dissipation fan; 16. EMC shielding ventilation screen; 17. a filter plate; 18. a mounting block; 19. an L-shaped rod; 20. limiting plug blocks; 21. a baffle; 22. a return spring; 23. a water-absorbing drying net; 24. a dust-proof plate; 25. perforating the metal plate; 26. a temperature sensor; 27. and a PLC controller.
Detailed Description
Referring to fig. 1, fig. 2, fig. 3 and fig. 4 in combination, fig. 1 is a schematic structural diagram of the present utility model; FIG. 2 is an enlarged schematic view of the portion A in FIG. 1; FIG. 3 is a schematic perspective view of a housing according to the present utility model; FIG. 4 shows a perspective assembly of a first rotating rod, a first bevel gear, a second bevel gear and a second rotating rod according to the present utility model. Multifunctional electromagnetic shielding ventilation device with rainproof function includes: the device comprises a shell 1, a grid plate 2 and two rainproof mechanisms, wherein the grid plate 2 is fixedly arranged in the shell 1, and the two rainproof mechanisms are arranged on the shell 1;
the rain-proof mechanism comprises a mounting box 3, a first rotating rod 4, a connecting block 5, a rain baffle 6, a mounting rod 7, a sealing plate 8, a first conical gear 9, a second conical gear 10, a second rotating rod 11, a gear motor 12 and a motor controller 13, wherein the mounting box 3 is fixedly mounted on the top of a shell 1, the first rotating rod 4 is rotatably mounted in the mounting box 3, the connecting block 5 is fixedly mounted on the first rotating rod 4, the top of the connecting block 5 extends to the outside of one side of the mounting box 3 and is movably connected with the mounting box 3, the rain baffle 6 is arranged above the top of the shell 1, the bottom of the rain baffle 6 is fixedly connected with the top of the connecting block 5, the mounting rod 7 is fixedly mounted on the bottom of the rain baffle 6, the sealing plate 8 is arranged above the top of the shell 1, the top of the sealing plate 8 is fixedly connected with the bottom of the mounting rod 7, the first conical gear 9 is fixedly sleeved on the first rotating rod 4, the second conical gear 10 is arranged in the mounting box 3, the second conical gear 10 is meshed with the first conical gear 9, the second motor 11 is rotatably mounted on the second conical gear 11 and is fixedly connected with the top of the second motor 12, and is fixedly connected with the top of the second motor controller 12, and is fixedly connected with the top of the second rotating rod 11 on the top of the motor 12.
An air outlet is formed in the top of the shell 1, an air inlet is formed in the bottom of the shell 1, and the air outlet is matched with the two sealing plates 8.
The installation box 3 is provided with a through hole, the through hole is matched with the connecting block 5, the corresponding rain baffle 6 and the corresponding sealing plate 8 are fixedly provided with triangular rain baffles 14, the top of the grid plate 2 is fixedly provided with a heat dissipation fan 15, and the heat dissipation fan 15 is positioned below the air outlet.
Be equipped with EMC shielding ventilation otter board 16 in the air outlet, the bottom of EMC shielding ventilation otter board 16 is equipped with filter 17, four recesses have been seted up to the bottom of filter 17, and four recesses correspond two by two respectively, spacing slot has been seted up to the inner wall of one side of recess.
The bottom of casing 1 is equipped with four spacing subassemblies, spacing subassembly is including installation piece 18, L type pole 19, spacing inserted block 20, baffle 21 and reset spring 22, installation piece 18 fixed mounting is on the top inner wall of casing 1, L type pole 19 slidable mounting is on installation piece 18, the one end of L type pole 19 extends to in the recess and with recess sliding connection, spacing inserted block 20 sets up in the recess, spacing inserted block 20 fixed mounting is on L type pole 19, spacing inserted block 20 and spacing slot looks adaptation, baffle 21 fixed mounting is on the one end that L type pole 19 kept away from spacing inserted block 20, reset spring 22 slip cap is established on L type pole 19, reset spring 22's one end and installation piece 18 fixed connection, reset spring 22's the other end and baffle 21 fixed connection, four baffles 21 are connected through two fixed blocks.
The inside of the air inlet is provided with a water absorption drying net 23, the bottom of the water absorption drying net 23 is provided with a dust-proof plate 24, the bottom of the shell 1 is provided with a perforated metal plate 25, the perforated metal plate 25 is connected with the dust-proof plate 24, and the perforated metal plate 25 is connected with the bottom of the shell 1 through four bolts.
The inner wall of one side of the shell 1 is provided with a temperature sensor 26, the inner wall of one side of the shell 1 far away from the temperature sensor 26 is provided with a PLC (programmable logic controller) 27, the temperature sensor 26 is connected with the PLC 27, and the PLC 27 is connected with the motor controller 13 and the heat dissipation fan 15.
The PLC 27 is connected with the second rotating rod 11.
The shell 1 is a bearing frame body formed by square tubes of aluminum profiles, the inner and outer surfaces of the bearing frame body are coated with a whole antirust aluminum plate with the thickness of 2mm, and polyurethane foaming agents are filled between the antirust aluminum plates so as to play roles of fixing, heat insulation and electromagnetic shielding.
The perforated metal sheet 25 is relatively stable in shielding performance compared to a wire mesh because it does not have a defect that the contact between the mesh points of the wire mesh is unstable.
The working principle of the multifunctional electromagnetic shielding ventilation device with the rainproof function provided by the utility model is as follows:
a first step of: during use, the temperature sensor 26 can be used for detecting the temperature in the shell 1 and transmitting detection information to the PLC 27 for analysis, when the temperature is too high, the PLC 27 can start the heat dissipation fan 15 to operate, the air in the shell 1 is discharged to the outside through the air outlet by the heat dissipation fan 15, and the outside air enters the shell 1 through the air inlet under the action of air pressure, so that air circulation is formed, heat on elements in the shell 1 can be taken away, the operation is simple, the heat dissipation effect can be enhanced, the heat dissipation efficiency is improved, the water absorption drying net 23 and the dust-proof plate 24 play a role of blocking dust and filtering air and moisture during ventilation and heat dissipation, and the perforated metal plate 25 and the EMC shielding ventilation screen 16 play a role of electromagnetic shielding;
and a second step of: when raining, the second rotating rod 11 detects the information, the second rotating rod 11 transmits the information to the PLC 27, the PLC 27 controls the two motor controllers 13 to operate, the two motor controllers 13 respectively start the two speed reducing motors 12 to operate front and back, the output shafts of the speed reducing motors 12 drive the second rotating rod 11 to rotate, the second rotating rod 11 drives the second bevel gear 10 to rotate, under the meshing effect, the second bevel gear 10 drives the first bevel gear 9 and the first rotating rod 4 to rotate, the first rotating rod 4 drives the connecting block 5 and the rain shield 6 to rotate, and finally the rain shield 6 drives the mounting rod 7, the sealing plate 8 and the triangular rain shield 14 to rotate, so that a large-block rain shield is formed at the joint of the two rain shields 6, and meanwhile, the two sealing plates 8 are combined and shield an air outlet, so that rainwater is prevented from entering the shell 1 through the air outlet, and damage to elements in the fan 15 and the shell 1 is avoided;
and a third step of: when the water-absorbing and drying net 23, the dust-proof plate 24 and the perforated metal plate 25 need to be disassembled, the water-absorbing and drying net 23, the dust-proof plate 24 and the perforated metal plate 25 can be taken out by rotating bolts, and can be taken out for replacement.
It should be noted that, the device structure and the drawings of the present utility model mainly describe the principle of the present utility model, in terms of the technology of the design principle, the arrangement of the power mechanism, the power supply system, the control system, etc. of the device is not completely described, and on the premise that the person skilled in the art understands the principle of the present utility model, the specific details of the power mechanism, the power supply system and the control system can be clearly known, the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art;
the standard parts used in the method can be purchased from the market, and can be customized according to the description of the specification and the drawings, the specific connection modes of the parts are conventional means such as mature bolts, rivets and welding in the prior art, the machines, the parts and the equipment are conventional models in the prior art, and the structures and the principles of the parts are all known by the skilled person through technical manuals or through conventional experimental methods.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents, and in other related technical fields, which are equally encompassed by the scope of the present utility model.
Claims (7)
1. A multifunctional electromagnetic shielding ventilation device with rainproof function, comprising:
the device comprises a shell, a grid plate and two rainproof mechanisms, wherein the grid plate is fixedly arranged in the shell, and the two rainproof mechanisms are arranged on the shell;
the rain-proof mechanism comprises a mounting box, a first rotating rod, a connecting block, a rain shield plate, a mounting rod, a sealing plate, a first conical gear, a second rotating rod, a gear motor and a motor controller, wherein the mounting box is fixedly arranged on the top of a shell, one rotating rod is rotatably arranged in the mounting box, the connecting block is fixedly arranged on the first rotating rod, the top of the connecting block extends out of one side of the mounting box and is movably connected with the mounting box, the rain shield plate is arranged above the top of the shell, the bottom of the rain shield plate is fixedly connected with the top of the connecting block, the mounting rod is fixedly arranged on the bottom of the rain shield plate, the sealing plate is arranged above the top of the shell, the top of the sealing plate is fixedly connected with the bottom of the mounting rod, the first conical gear is fixedly sleeved on the first rotating rod, the second conical gear is arranged in the mounting box, the second conical gear is meshed with the first conical gear, the second rotating rod is rotatably arranged on the inner wall of the top of the shell, the top of the second rotating rod extends into the mounting box and is fixedly connected with the second conical gear motor, the second rotating rod is fixedly connected with the second rotating rod, and the second rotating rod is fixedly connected with the top of the motor controller.
2. The multifunctional electromagnetic shielding and ventilating device with rainproof function according to claim 1, wherein: an air outlet is formed in the top of the shell, an air inlet is formed in the bottom of the shell, and the air outlet is matched with the two sealing plates.
3. The multifunctional electromagnetic shielding and ventilating device with rainproof function according to claim 1, wherein: the installation box is provided with a through hole, the through hole is matched with the connecting block, triangular rain shielding blocks are fixedly installed on the corresponding rain shielding plates and the corresponding sealing plates, the top of the grid plate is fixedly provided with a heat dissipation fan, and the heat dissipation fan is located below the air outlet.
4. A multifunctional electromagnetic shielding and ventilating apparatus having a rainproof function according to claim 3, wherein: be equipped with EMC shielding ventilation otter board in the air outlet, the bottom of EMC shielding ventilation otter board is equipped with the filter, four recesses have been seted up to the bottom of filter, and four recesses correspond two by two respectively, spacing slot has been seted up to one side inner wall of recess.
5. The multifunctional electromagnetic shielding and ventilating apparatus having a rainproof function according to claim 4, wherein: the bottom of casing is equipped with four spacing subassemblies, spacing subassembly is including installation piece, L type pole, spacing inserted block, baffle and reset spring, installation piece fixed mounting is on the top inner wall of casing, L type pole slidable mounting is on the installation piece, the one end of L type pole extends to in the recess and with recess sliding connection, spacing inserted block sets up in the recess, spacing inserted block fixed mounting is on L type pole, spacing inserted block and spacing slot looks adaptation, baffle fixed mounting is on the one end that L type pole kept away from spacing inserted block, reset spring sliding sleeve establishes on L type pole, reset spring's one end and installation piece fixed connection, reset spring's the other end and baffle fixed connection, four baffles pass through two fixed block connections.
6. The multifunctional electromagnetic shielding and ventilating device with rainproof function according to claim 2, wherein: the novel water-absorbing and drying device is characterized in that a water-absorbing and drying net is arranged in the air inlet, a dust-proof plate is arranged at the bottom of the water-absorbing and drying net, a perforated metal plate is arranged at the bottom of the shell, the perforated metal plate is connected with the dust-proof plate, and the perforated metal plate is connected with the bottom of the shell through four bolts.
7. A multifunctional electromagnetic shielding and ventilating apparatus having a rainproof function according to claim 3, wherein: the inner wall of one side of the shell is provided with a temperature sensor, the inner wall of one side of the shell far away from the temperature sensor is provided with a PLC controller, the temperature sensor is connected with the PLC controller, and the PLC controller is connected with a motor controller and a heat dissipation fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321000636.7U CN219834773U (en) | 2023-04-28 | 2023-04-28 | Multifunctional electromagnetic shielding ventilation device with rainproof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321000636.7U CN219834773U (en) | 2023-04-28 | 2023-04-28 | Multifunctional electromagnetic shielding ventilation device with rainproof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219834773U true CN219834773U (en) | 2023-10-13 |
Family
ID=88278575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321000636.7U Active CN219834773U (en) | 2023-04-28 | 2023-04-28 | Multifunctional electromagnetic shielding ventilation device with rainproof function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219834773U (en) |
-
2023
- 2023-04-28 CN CN202321000636.7U patent/CN219834773U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2588365A (en) | Ventilation apparatus having anti-rain, anti-dust and electromagnetic interference shielding functionality | |
| CN219834773U (en) | Multifunctional electromagnetic shielding ventilation device with rainproof function | |
| CN111371288A (en) | Intermediate frequency power cabinet with heat dissipation function | |
| CN213705211U (en) | Direct current fills electric pile with heat radiation structure | |
| CN211965109U (en) | Ventilation device for limited space | |
| CN114698307A (en) | High-efficient energy-conserving PLC electrical control cabinet | |
| CN214478950U (en) | Power distribution cabinet with automatic adjusting function | |
| CN113597220A (en) | Monitor with heat dissipation function and heat dissipation method thereof | |
| CN114976946A (en) | Cooling system of passive distribution box | |
| CN114487489A (en) | Safety monitoring device that electrical engineering used | |
| CN114352174A (en) | Self-sealing calibrated high-flame-retardant door and window | |
| CN114609330A (en) | Electrolyte measuring instrument based on Cortex-M4 and Android system | |
| CN210663492U (en) | Heat dissipation assembly for continuous production of containers | |
| CN215786797U (en) | Noise-reduction type safety protection cover for lathe | |
| CN213238019U (en) | Water source heat pump device capable of synchronously supplying heat to ground energy and air | |
| CN221058649U (en) | Energy-saving dehumidifying device of communication equipment | |
| CN220544575U (en) | Switch board ventilation structure | |
| CN221137524U (en) | Automobile warm air blower with ventilation structure | |
| CN220475152U (en) | Transformer case with heat dissipation wind channel | |
| CN216210880U (en) | Medical safety service equipment based on big data | |
| CN221122355U (en) | Wall heating picture capable of changing picture | |
| CN213692780U (en) | Novel dampproofing shutoff regulator cubicle | |
| CN208352825U (en) | A kind of low voltage reactive compensation cabinet Smart Fan Control | |
| CN214757273U (en) | Energy-concerving and environment-protective power equipment rack | |
| CN220489354U (en) | Indoor energy-saving ventilation structure of building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |