CN108307610A - A kind of monitoring cabinet of automatic dehumidifying - Google Patents
A kind of monitoring cabinet of automatic dehumidifying Download PDFInfo
- Publication number
- CN108307610A CN108307610A CN201810203987.5A CN201810203987A CN108307610A CN 108307610 A CN108307610 A CN 108307610A CN 201810203987 A CN201810203987 A CN 201810203987A CN 108307610 A CN108307610 A CN 108307610A
- Authority
- CN
- China
- Prior art keywords
- cabinet
- monitoring
- layer
- electrically connected
- lower layer
- 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.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/20554—Forced ventilation of a gaseous coolant
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Aviation & Aerospace Engineering (AREA)
- Drying Of Gases (AREA)
Abstract
The invention discloses a kind of monitoring cabinets of automatic dehumidifying, belong to monitoring device technical field, solves the problems, such as that easily aggregation moisture causes loss and closed monitoring cabinet dehumidification function can not long-term automatic running component inside monitoring cabinet in the prior art.The present invention includes upper layer cabinet, lower layer's cabinet, cabinet and monitoring display screen, the monitoring display screen is located on the medial surface of upper layer cabinet, the cabinet is mounted on the bottom in lower layer's cabinet, it is characterized in that, it is equipped with except wet tank in the upper layer cabinet, the entrance except wet tank is equipped with fan, the fan rear is provided with water accepting layer, it is provided with heating net between the water accepting layer and dehumidifying chamber interior wall, the heating net is electrically connected with accumulator, the accumulator is electrically connected with timer, the heating net is also electrically connected with thermistor, the thermistor is electrically connected with accumulator, described remove is connected with dehumidification tube at the top of wet tank.Energy automatic cycle dehumidifying of the invention, is suitable for being used for a long time.
Description
Technical field
The invention belongs to monitoring device technical fields, and in particular to a kind of monitoring cabinet of automatic dehumidifying.
Background technology
Monitoring cabinet belongs to one kind of cabinet, for combining installation panel, plug-in unit, subrack, electronic component, device and machine
Tool part and component make it constitute the installs case of an entirety.
Monitoring cabinet is made of frame, cover board and door, is generally had the shape of a rectangular parallelepiped, and is placed on the floor.It sets for electronics
Standby normal work provides adaptable environment and security protection.This is to be only second to system-level level-one assembling.Do not have closing knot
The cabinet of structure is known as rack.
Monitoring cabinet should have a good technical performance, and the structure of cabinet according to the electrical of equipment, mechanical performance and should make
With the requirement of environment, necessary physical Design and chemical design are carried out, to ensure that the structure of cabinet has good rigidity and strong
The performances such as degree and good electromagnetic isolation, ground connection, noise isolation, ventilation and heat.In addition, monitoring cabinet should have anti-vibration,
The performances such as shock resistance, corrosion-resistant, dust-proof, waterproof, radiation protection, to ensure that equipment reliablely and stablely works.Monitoring cabinet should have
There are good usability and safety protection facility, easy to operation, installation and repair, and can guarantee operator's safety.
Monitoring cabinet is due to being mounted with many electronic components and cabinet, therefore its inner heat is more, if interior of equipment cabinet
The excessively high performance that can influence its interior electronic component of temperature, can also damage when serious, generate unnecessary economic loss, because
The prior art mainly adopts non-enclosed rack constructions for this, and to obtain good heat dissipation effect, but such structure can not solve
A large amount of noise problems that monitoring cabinet generates carry out related behaviour since monitoring cabinet is frequently necessary to operating personnel by monitor screen
Make, therefore a large amount of noise can make working environment severe, be not easy to manual operation.
The humidity of environment often causes electronic component to seriously affect, and the moisture in air is heated in monitoring cabinet
Expansion forms vapor, can lead to electronic component surface metal oxidization, is easy to cause product failure, accelerates component
Aging, especially enclosed monitoring cabinet, moisture therein can not be discharged, and extended stationary periods wherein, form sternly equipment
The threat of weight, and since dehumidification equipment needs longtime running, existing dehumidification device majority to want regular manual cleaning or replace to inhale
Wet stock etc., closed monitoring cabinet are often not easy to open cabinet, and therefore, it is difficult to find effective solution method to carry out for a long time
Dehumidifying.
In conclusion how the monitoring cabinet of enclosed construction ensures that heat dissipation, noise reduction, dehumidifying become our urgent need to resolve
The problem of.
Invention content
It is an object of the invention to：
To solve inside monitoring cabinet in the prior art, easily aggregation moisture causes loss and closed prison to component
Control cabinet dehumidification function can not long-term automatic running the problem of, and provide a kind of monitoring cabinet of automatic dehumidifying.
The technical solution adopted by the present invention is as follows：
A kind of monitoring cabinet of automatic dehumidifying, including upper layer cabinet, lower layer's cabinet, cabinet and monitoring display screen, the monitoring are aobvious
Display screen is located on the medial surface of upper layer cabinet, and the cabinet is mounted on the bottom in lower layer's cabinet, which is characterized in that in the upper layer cabinet
It is equipped with and removes wet tank, the entrance except wet tank is equipped with fan, and the fan rear is provided with water accepting layer, the water accepting layer
Heating net is provided between dehumidifying chamber interior wall, the heating net is electrically connected with accumulator, and the accumulator is electrically connected with timing
Device, the heating net are also electrically connected with thermistor, and the thermistor is electrically connected with accumulator, and described remove connects at the top of wet tank
It is connected to dehumidification tube.
The material of water accepting layer can be used anhydrous cupric sulfate, anhydrous calcium chloride, silica-gel desiccant etc. can be through after water suction is saturated
It crosses heating discharge moisture and realizes recycled material, except top should there are certain inner spaces to ensure for the water accepting layer in wet tank
Vapor can be distributed uniformly upwards, and the outlet of dehumidification tube can be closed when heating net is not opened, and the air outside cabinet is avoided to enter.
Further, it is provided with sound insulation inner cover outside the cabinet, sound-proof ventilator is installed on the sound insulation inner cover inner wall.
Sound insulation inner cover by one layer there is constant weight and the air-locked metal shell of rigidity and the additional sound-absorbing material layer in inside to be made
, sound-absorbing material layer can be mineral wool, microperforated panel etc., and the connection support of sound insulation inner cover and rack room should use elasticity even
It connects, to ensure the noise reduction of sound insulation inner cover.
Further, it is connected with pivoting support between the sound insulation inner cover and lower layer's cabinet.As preferred mode, work is used
Dynamic formula pivoting support allows sound insulation inner cover to turn an angle and along certain distance is moved horizontally, improves the effect of vibration isolation,
Sound insulation inner cover and rack room can also be used other non-rigid connections or be directly laid with vibration isolation material between, sound insulation inner cover and cabinet
Between should be not directly contacted with.
Further, the top in lower layer's cabinet is equipped with heat exchanger tube, and the heat exchanger tube left and right ends are respectively connected with water
It manages, heat-dissipating pipe is installed in the cabinet, the heat-dissipating pipe is U-tube, and the outlet end above heat-dissipating pipe is connected and stretches into institute
It states in heat exchanger tube.Conductive fluid is filled in heat-dissipating pipe, conductive fluid should select the higher liquid of saturated vapor pressure under same temperature condition,
I.e. volatile liquid, heat-dissipating pipe planted agent vacuumize, and there are certain spaces, and gas-liquid to be made to realize convection current.
Further, at the dehumidifying tank inlet on the outside of dedusting box is installed, be equipped with and be folded into the dedusting box
The dirt filtrating screen of multilayer.Cross section is continuous " N " shape after dust filtering net folding, when installation fold after each faying surface direction and wind direction
It is parallel, it is possible to increase the contact area of air and dirt filtrating screen.
Further, shock-absorbing spring is installed below lower layer's cabinet.Shock-absorbing spring can be also directly arranged at below cabinet,
Spring is primarily subjected to the vibration of cabinet generation at this time, and the smaller bullet of diameter can be selected compared to the shock-absorbing spring installed below cabinet
Spring is to save space in cabinet, as preferred mode, shock-absorbing spring can be arranged simultaneously to be respectively subjected to the vibration inside and outside cabinet,
Reach better effectiveness in vibration suppression.
Further, partition board is provided between the upper layer cabinet and lower layer's cabinet, multiple apertures are provided on the partition board, it can be achieved that
Levels cabinet cross-ventilation further increases the effect of heat dissipation dehumidifying and dedusting, ensures the function of each device in whole cabinet
All effectively, the stability of equipment entirety is improved.
The course of work of the present invention is as follows：
The monitoring cabinet of the present invention at work, except the fan rotation in wet tank, air in cabinet is pumped into and is removed in wet tank,
It is discharged after water accepting layer dehumidifies, discharge moisture can be heated after water accepting layer saturation by heating net and realize that recycling, accumulator are
Heating net power, by thermistor control heating temperature and duration, timer can setting time periodically turn on heating net to inhale
Water layer material carries out heated baking, and the moisture evaporated is discharged by top dehumidification tube outside cabinet.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. removing in wet tank for the present invention is equipped with heating net, the water suction layer material that saturation state can be reached to water suction adds
Heat baking, discharge wherein moisture, realizes and recycles, saved resource and cost, meanwhile, compared with prior art, cladding
For heating net than being installed on the heater plate of bottom evenly, water removal effect is more preferable.Thermistor can control heating net heating
Temperature prevents device in the excessively high damage cabinet of heating net heating temperature, reduces security risk, and timer can set heating layer
Run duration, operation range time realize automation cycle operation, reduce the workload of operating personnel.Levels cabinet
Structure it is simple, it is easy to install and safeguard, simple operation, have good market prospects.
2. the present invention is provided with sound insulation inner cover, sound-proof ventilator is installed on sound insulation inner cover inner wall, is realized closed
Ventilation and heat under structure, solves in the prior art that closed monitoring cabinet heat dissipation effect is poor, and non-enclosed rack noise is big
Problem avoids the problem of electronic component is damaged because of high temperature in monitoring cabinet, and effectively reduces noise, is applicable to each
Kind needs the occasion of noise abatement, use scope extensive.
3. being connected with pivoting support between the sound insulation inner cover and lower layer's cabinet of the present invention, pivoting support can be such that sound insulation inner cover carries out
Certain elastic displacement keeps sound insulation inner cover not affected by vibration, improves the effect of noise reduction.
4. being equipped with heat-dissipating pipe in cabinet of the present invention, conductive fluid is housed, conductive fluid is risen to scattered by thermal evaporation in heat-dissipating pipe
Above heat pipe, exchanges heat and liquefy with the water in heat exchanger tube in heat exchanger tube, be back in cabinet in gravity, realize circulative convection
Heat dissipation, while further improving heat dissipation effect, not will produce any noise, further avoids the electronics in monitoring cabinet
Component is damaged by high temperature.
5. the present invention is equipped with dedusting box, the dirt filtrating screen for being folded into multilayer is installed in dedusting box, it can be in fan to cabinet
The dust in air filtering was descended in the drive of interior air, avoids the problems such as electronic component dust stratification causes Damage by Short Circuit, filters simultaneously
Dirt net is the structure of multilayer folding, considerably increases the contact area with air, effectively increases the effect of dedusting.
6. being equipped with shock-absorbing spring below lower layer's cabinet of the present invention, the vibration that cabinet is born can be reduced, is avoided electric in cabinet
Sub- component is damaged because of shock and vibration, ensure that the safety of equipment.
7. the present invention upper layer cabinet and lower layer's cabinet between be provided with partition board, multiple apertures are offered on partition board, it can be achieved that on
Lower layer's cabinet cross-ventilation further increases the effect of heat dissipation dehumidifying and dedusting, ensure the function of each device in whole cabinet all
Effectively, the stability of equipment entirety is improved.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the structural schematic diagram of the present invention.
Reference sign：
The upper layers 1- cabinet, 2- monitoring display screens, 3- remove wet tank, 4- water accepting layers, 5- heating nets, 6- timers, 7- partition boards, 8- water
Pipe, 9- sound insulation inner covers, 10- cabinets, 11- sound-proof ventilators, 12- lower layers cabinet, 13- shock-absorbing springs, 14- heat-dissipating pipes, 15- heat exchange
Pipe, 16- thermistors, 17- accumulators, 18- dedusting boxes, 19- fans, 20- dehumidification tubes.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
It elaborates to the present invention with reference to Fig. 1.
Embodiment 1
A kind of monitoring cabinet of automatic dehumidifying, including upper layer cabinet 1, lower layer's cabinet 12, cabinet 10 and monitoring display screen 2, it is described
Monitoring display screen 2 is located on the medial surface of upper layer cabinet 1, and the cabinet 10 is mounted on the bottom in lower layer's cabinet 12, which is characterized in that
It is equipped in the upper layer cabinet 1 except wet tank 3, the entrance except wet tank 3 is equipped with fan 19, the setting of 19 rear of the fan
There is a water accepting layer 4, the water accepting layer 4 and except heating net 5 is provided between 3 inner wall of wet tank, the heating net 5 is electrically connected with accumulator
17, the accumulator 17 is electrically connected with timer 6, and the heating net 5 is also electrically connected with thermistor 16, the thermistor 16
It is electrically connected with accumulator 17, the top except wet tank 3 is connected with dehumidification tube 20.
4 material of water accepting layer that heating net 5 can reach water suction saturation state carries out heated baking, and discharge wherein moisture is real
It now recycles, has saved resource and cost, meanwhile, compared with prior art, the heating net 5 of cladding is than being installed on adding for bottom
Hot plate heats evenly, and water removal effect is more preferable.Thermistor 16 can control the temperature that heating net 5 heats, and prevent heating net 5 from heating
Device in the excessively high damage cabinet of temperature, reduces security risk, and timer 6 can set the run duration of heating layer, work
Interval time realizes automation cycle operation, reduces the workload of operating personnel.The structure of levels cabinet 12 is simple, Yi An
Dress and maintenance, simple operation have good market prospects.
Embodiment 2
The present embodiment emphasis illustrates the improvements compared with above-described embodiment, and something in common repeats no more, in this implementation
In example, it is provided with sound insulation inner cover 9 outside the cabinet 10, sound-proof ventilator 11 is installed on 9 inner wall of sound insulation inner cover.This implementation
Example realizes the ventilation and heat under enclosed construction, solves in the prior art that closed monitoring cabinet heat dissipation effect is poor, non-envelope
The big problem of closed frame noise avoids the problem of electronic component is damaged because of high temperature in monitoring cabinet, and effectively reduces
Noise, is applicable to the various occasions for needing noise abatement, use scope is extensive.
Embodiment 3
The present embodiment emphasis illustrates the improvements compared with above-described embodiment, and something in common repeats no more, in this implementation
In example, pivoting support is connected between the sound insulation inner cover 9 and lower layer's cabinet 12, pivoting support can be such that sound insulation inner cover 9 carries out centainly
Elastic displacement keeps sound insulation inner cover 9 not affected by vibration, improves the effect of noise reduction.
Embodiment 4
The present embodiment emphasis illustrates the improvements compared with above-described embodiment, and something in common repeats no more, in this implementation
In example, the top in lower layer's cabinet 12 is equipped with heat exchanger tube 15, and 15 left and right ends of the heat exchanger tube are respectively connected with water pipe 8, institute
It states and heat-dissipating pipe 14 is installed in cabinet 10, the heat-dissipating pipe 14 is U-tube, and the outlet end of 14 top of heat-dissipating pipe is connected and stretches into
In the heat exchanger tube 15.Conductive fluid is risen to the top of heat-dissipating pipe 14 by thermal evaporation, in heat exchanger tube 15 with the water in heat exchanger tube 15
Heat exchange liquefaction, is back in gravity in cabinet 10, realizes circulative convection heat dissipation, further improves the same of heat dissipation effect
When, it not will produce any noise, the electronic component further avoided in monitoring cabinet is damaged by high temperature.
Embodiment 5
The present embodiment emphasis illustrates the improvements compared with above-described embodiment, and something in common repeats no more, in this implementation
It is described except dedusting box 18 is equipped on the outside of 3 inlet of wet tank in example, the filter for being folded into multilayer is installed in the dedusting box 18
Dirt net.The dust in air filtering can be crossed in the case where fan 19 is to the drive of air in cabinet, avoided electronic component dust stratification and caused
The problems such as Damage by Short Circuit, while the structure that dirt filtrating screen is multilayer folding, the contact area with air is considerably increased, is effectively improved
The effect of dedusting.
Embodiment 6
The present embodiment emphasis illustrates the improvements compared with above-described embodiment, and something in common repeats no more, in this implementation
In example, 12 lower section of lower layer's cabinet is equipped with shock-absorbing spring 13, can reduce the vibration that cabinet is born, avoid electronics member device in cabinet
Part is damaged because of shock and vibration, ensure that the safety of equipment.
Embodiment 7
The present embodiment emphasis illustrates the improvements compared with above-described embodiment, and something in common repeats no more, in this implementation
In example, it is provided with partition board 7 between the upper layer cabinet 1 and lower layer's cabinet 12, multiple apertures are provided on the partition board 7, it can be achieved that levels
12 cross-ventilation of cabinet further increases the effect of heat dissipation dehumidifying and dedusting, ensures the function of each device to having in whole cabinet
Effect, improves the stability of equipment entirety.
Claims (7)
1. a kind of monitoring cabinet of automatic dehumidifying, including upper layer cabinet (1), lower layer's cabinet (12), cabinet (10) and monitoring display screen
(2), the monitoring display screen (2) is located on the medial surface of upper layer cabinet (1), and the cabinet (10) is mounted in lower layer's cabinet (12)
Bottom, which is characterized in that be equipped with except wet tank (3) in the upper layer cabinet (1), the entrance except wet tank (3) is equipped with wind
It fans (19), fan (19) rear is provided with water accepting layer (4), and the water accepting layer (4) is provided between wet tank (3) inner wall with removing
Heating net (5), the heating net (5) are electrically connected with accumulator (17), and the accumulator (17) is electrically connected with timer (6), institute
It states heating net (5) and is also electrically connected with thermistor (16), the thermistor (16) is electrically connected with accumulator (17), the dehumidifying
Dehumidification tube (20) is connected at the top of case (3).
2. a kind of monitoring cabinet of automatic dehumidifying according to claim 1, which is characterized in that the cabinet (10) is arranged outside
There is sound insulation inner cover (9), sound-proof ventilator (11) is installed on sound insulation inner cover (9) inner wall.
3. a kind of monitoring cabinet of automatic dehumidifying according to claim 2, which is characterized in that the sound insulation inner cover (9) with
Lower layer's cabinet is connected with pivoting support between (12).
4. a kind of monitoring cabinet of automatic dehumidifying according to claim 1, which is characterized in that in lower layer's cabinet (12)
Top is equipped with heat exchanger tube (15), and heat exchanger tube (15) left and right ends are respectively connected with water pipe (8), are installed in the cabinet (10)
It is U-tube to have heat-dissipating pipe (14), the heat-dissipating pipe (14), and the outlet end above heat-dissipating pipe (14) is connected and stretches into the heat exchange
It manages in (15).
5. a kind of monitoring cabinet of automatic dehumidifying according to claim 1, which is characterized in that described to remove wet tank (3) entrance
Dedusting box (18) is installed on the outside of place, the dirt filtrating screen for being folded into multilayer is installed in the dedusting box (18).
6. a kind of monitoring cabinet of automatic dehumidifying according to claim 1, which is characterized in that below lower layer's cabinet (12)
Shock-absorbing spring (13) is installed.
7. a kind of monitoring cabinet of automatic dehumidifying according to claim 1, which is characterized in that the upper layer cabinet (1) and under
It is provided with partition board (7) between layer cabinet (12), multiple apertures are provided on the partition board (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810203987.5A CN108307610A (en) | 2018-03-13 | 2018-03-13 | A kind of monitoring cabinet of automatic dehumidifying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810203987.5A CN108307610A (en) | 2018-03-13 | 2018-03-13 | A kind of monitoring cabinet of automatic dehumidifying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108307610A true CN108307610A (en) | 2018-07-20 |
Family
ID=62849754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810203987.5A Withdrawn CN108307610A (en) | 2018-03-13 | 2018-03-13 | A kind of monitoring cabinet of automatic dehumidifying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108307610A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980537A (en) * | 2019-02-25 | 2019-07-05 | 安徽乐立电气有限公司 | A kind of arc-extinguishing harmonic-eliminating switchgear |
-
2018
- 2018-03-13 CN CN201810203987.5A patent/CN108307610A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980537A (en) * | 2019-02-25 | 2019-07-05 | 安徽乐立电气有限公司 | A kind of arc-extinguishing harmonic-eliminating switchgear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2498164C2 (en) | Dehumidifier and method of its use | |
| WO2009090405A1 (en) | Air filter | |
| JP2013258166A (en) | Electronic apparatus device and housing thereof | |
| JP6324538B2 (en) | Server room cooling apparatus and method for manufacturing air conditioning system of data center including the same | |
| CN110535048A (en) | A kind of distribution box with antifogging function | |
| CN113438854A (en) | Communication cabinet with good heat dissipation effect | |
| US20210329818A1 (en) | Storage-type modular data center | |
| CN208029286U (en) | A kind of monitoring cabinet of automatic dehumidifying | |
| CN108307610A (en) | A kind of monitoring cabinet of automatic dehumidifying | |
| CN112020252A (en) | Stable supporting system for big data server | |
| WO2017097029A1 (en) | Internal air conditioner indoor unit applicable to 19-inch standard cabinet | |
| KR101439507B1 (en) | A operating device of constant temperature constant humidity for servers and network equipment | |
| CN218386358U (en) | Prevent dampproofing box transformer of low noise of electric leakage | |
| CN207969172U (en) | A kind of temperature-control outdoor electric cabinet | |
| CN111208856A (en) | Moisture-proof and anti-condensation electrical control device | |
| CN214379596U (en) | Dust removal heat sink of electrical engineering electric power cabinet | |
| CN215582236U (en) | Dampproofing network equipment cabinet suitable for mill supplies water | |
| CN208029280U (en) | A kind of monitoring cabinet of high efficiency and heat radiation noise reduction | |
| CN210220050U (en) | Low-noise dehumidifier | |
| WO2011048371A1 (en) | Air filter | |
| CN107257199A (en) | A kind of inverter with radiating fire-extinguishing function concurrently | |
| CN220245160U (en) | Dampproofing elevator switch board | |
| CN108200750A (en) | A kind of monitoring cabinet of high efficiency and heat radiation noise reduction | |
| CN108879431B (en) | Dehumidification ventilation type outdoor electrical power distribution cabinet | |
| CN215819164U (en) | Drying and damp-proof device for electronic case |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180720 |
|
| WW01 | Invention patent application withdrawn after publication |