CN208566956U - A kind of fresh-air ventilation wall - Google Patents
A kind of fresh-air ventilation wall Download PDFInfo
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- CN208566956U CN208566956U CN201820633753.XU CN201820633753U CN208566956U CN 208566956 U CN208566956 U CN 208566956U CN 201820633753 U CN201820633753 U CN 201820633753U CN 208566956 U CN208566956 U CN 208566956U
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Abstract
The utility model discloses a kind of fresh-air ventilation wall, and primary structure includes: two-stage scroll hot and humid area device, PM2.5 filter device, wall air duct, inside and outside heat insulation decoration integrated plate, photovoltaic storage battery, photovoltaic battery panel, photovoltaic cavity, fan assembly, inside and outside window blind assembly, current control device, photovoltaic cavity valve, photovoltaic blower.The utility model uses newly-designed vortex fresh air and air-exhausting duct, and internal molecule hot and humid area film realizes efficient hot and humid area, by the opening and closing for controlling the valve of photovoltaic cavity, it realizes and utilizes summer air draft and winter new air cooling photovoltaic cell, it has improved photovoltaic efficiency and has enhanced new air heat-exchange effect, overall thermal device for heat/moist exchange and its ancillary equipment are organically combined with building structure, material, make full use of renewable energy, equipment investment and operating cost are reduced, the quality for improving efficiency of damp and hot exchanging, saving heat exchange volume, ensure that fresh air.
Description
Technical field
The utility model belongs to ventilation air interchange system more particularly to a kind of by novel fresh air air regenerating device and building structure
The wall combined makes full use of the technologies such as binary vortices pipe structure, molecule hot and humid area film, photovoltaic cell and battery to realize high
Effect is stablized, the new wind devices of energy saving purpose.
Background technique
With the development of economy, requirement of the people to indoor environment comfort level is higher and higher, in order to cope with outdoor environment
Constantly deteriorate, improves the quality of indoor environment, people generally use the relevant device and system of air cleaning.With China's energy
Day is becoming tight, and energy-saving and environment-friendly to be rooted in the hearts of the people, unreasonable residential ventilation air regenerating device will bring the loss of energy, not meet
The theory of energy saving building, low-carbon life.Currently there are numerous air purifiers and Total heat exchange equipment, we study
Analysis obtains, although these device systems can improve indoor environmental air conditions, still there are many deficiencies, such as sets
Standby cost of investment, structure, the use in space and benefit of equipment etc..
Through literature search, the research and analysis discovery to the prior art, Chinese Patent Application No. is
CN201620117639.2, utility model title are as follows: a kind of embedded fresh air ventilator of wall, it is net which belongs to air
Change apparatus field, more particularly, to a kind of embedded fresh air ventilator of wall, whole to use cylindrical structure, structure is single, main
Heat storage and fresh air preheating are realized by built-in cellular ceramic heat storage body, heat exchange efficiency is not high, and needs to occupy a large amount of
Space is to maintain certain heat transfer effect.
It also found through retrieval, Chinese Patent Application No. are as follows: CN201710023365.X, entitled photovoltaic fresh air one
Body construction wall structure, preheats fresh air using the micro-channel heat exchanger that equivalent diameter is only 300 microns of copper pipes, knot
Structure, which has, is easy blocking, and the part such as heat exchange equipment, blower still needs the disadvantages of occupying a large amount of building ceiling spaces.
According to the above deficiency, we design a kind of fresh-air ventilation wall, have hot and humid area equipment and building overall structure
The characteristics of combining not only solves structure, the use problem in space, and improves the scavenging efficiency of equipment.It makes full use of
Renewable energy maintains the stable operation of equipment, improves the quality of fresh air air；Product seriation may be implemented, standardization, lead to
It is produced with metaplasia, belongs to building materials and building field, while realizing energy-efficient benefit.
Summary of the invention
Based on problem above, the utility model discloses a kind of fresh-air ventilation wall.By heliotechnics and air heat energy skill
Art combines, and realizes that the efficient of energy utilizes and complement each other.Using ducting system, turbulent structure hot and humid area equipment, photovoltaic
The design that plate is combined with building structure reduces the use of air hose arrangement space, saves building cost.
The fresh-air ventilation wall is made of outdoor heat insulation module, core apparatus plate and upholstery components, the room
External thermal insulation component is entered by external thermal insulation decorative integrated plate, outer window blind assembly, photovoltaic battery panel, photovoltaic cavity, photovoltaic cavity fresh air
Mouth valve, photovoltaic cavity wind exhausting outlet valve and photovoltaic cavity exit valve are constituted；The outer surface of the external thermal insulation decorative integrated plate
Photovoltaic battery panel is installed, the outer window blind assembly is made of fresh air inlet shutter, wind exhausting outlet shutter, and described interior hundred
Leaf window assembly is made of fresh air outlet shutter, air draft entrance shutter, and the external thermal insulation decorative integrated plate and inside holding fill
Decorations integrated board is all made of heat preserving and insulating material.
The core apparatus plate by level-one and second level vortex hot and humid area device, fan assembly, wall ducting system with
PM2.5 filter device composition, the level-one vortex hot and humid area device include that level-one is new, air draft vortex tube, level-one are new, air draft
Entrance, level-one be new, wind exhausting outlet and level-one membrane structure, and the second level vortex hot and humid area device includes that second level is new, air draft
Vortex tube, second level are new, air draft entrance, second level are new, wind exhausting outlet and second level membrane structure, the fresh air vortex tube and air draft whirlpool
Coil is spiraled by " ∞ " cylinder structure and is made, and the upper and lower position of fresh air vortex tube and the adjacent synapsis of air draft vortex tube is equipped with groove
Structure, the level-one, second level membrane structure are made of molecule hot and humid area film, elongated, are fixed in groove structure,
Sealing strip is equipped in groove structure, and level-one, second level membrane structure are on the direction perpendicular to groove structure sectional plane
It can be cleaned and replaced by extraction and push-in membrane structure；The wall ducting system, by wall fresh flue
It is formed with wall exhausting duct, the wall is new, exhausting duct is by new, exhausting duct entrance, new, exhausting duct interlude and new, row
Ducting outlet section composition, the fan assembly is by pressure fan and exhaust fan unit at the PM2.5 filter device and pressure fan
It successively is mounted on fresh flue entrance, exhaust blower is mounted on exhausting duct outlet section.
The upholstery components are made of inside holding decorative integrated plate, interior window blind assembly and photovoltaic storage battery, institute
The fan assembly stated, PM2.5 filter device, photovoltaic storage battery are connected with photovoltaic battery panel by electric wire, and electric wire is equipped with electric current
Control device；The photovoltaic storage battery is embedded in inside holding decorative integrated plate, the current control device, linkage control
Fan assembly, PM2.5 filter device, photovoltaic storage battery, photovoltaic battery panel, photovoltaic cavity fresh air inlet valve, photovoltaic cavity air draft
Outlet valve and photovoltaic cavity exit valve.
Compared with prior art, the utility model has the advantage that
(1) it vortex hot and humid area device: is designed using turbulent structure, the design of total-heat exchanger structure different from the past
Thinking, fresh air vortex tube and air draft vortex tube constitute its internal air duct, using the requirement of indoor environment as standard, utilize fresh air, row
The enthalpy difference of wind, by the hot and humid area device with turbulent structure, so that fresh air and air draft pass through fresh air vortex tube and air draft whirlpool
Membrane structure in runner wall surface between coil realizes sufficient hot and humid area, improves efficiency of damp and hot exchanging, saves heat exchange sky
Between, it ensure that the quality of fresh air, and two-stage treatment device further increases the efficiency of damp and hot exchanging of equipment；
(2) upper and lower position of the adjacent synapsis of wind eddies coil of vortex hot and humid area device is equipped with groove structure, membranaceous knot
Structure is made of molecule hot and humid area film, elongated, is made into modular construction, is fixed in groove structure, and membranaceous knot
Structure has freedom of movement on the direction perpendicular to groove structure sectional plane, and replacement or clear can be carried out by extraction and push-in
It washes；
(3) photovoltaic battery panel, photovoltaic cavity, photovoltaic cavity fresh air inlet valve, photovoltaic cavity wind exhausting outlet valve and photovoltaic are empty
The combination of chamber outlet valve is improving photovoltaic cell effect using summer air draft and winter new air cooling photovoltaic battery panel bottom plate
Also system new air heat-exchange effect is further improved while rate；
(4) photovoltaic battery panel, photovoltaic storage battery and power grid connect, and linkage control is to realize in solar energy surplus, solar energy
The stable operation of system when sufficient, solar energy lacks, rationally efficiently utilizes renewable energy；
(5) design combined using wall fresh flue, wall exhausting duct, vortex hot and humid area device with building structure,
While guaranteeing efficiency of damp and hot exchanging, reduce air hose arrangement space, carries out building ventilation using this new wall, saving is built
Build up this.
Detailed description of the invention
Fig. 1 is fresh-air ventilation wall top view.
Fig. 2 is cross-sectional view at the A-A of Fig. 1.
Fig. 3 is cross-sectional view at the B-B of Fig. 1.
Fig. 4 is vortex hot and humid area setting plane.
Fig. 5 is the C-C cross-sectional view of Fig. 4.
Fig. 6 is the Local map of Fig. 5.
Wherein: 1-outdoor heat insulation module；101-wind exhausting outlet shutters；102-fresh air inlet shutters；103-is outer
Heat insulation decoration integrated plate；104-photovoltaic battery panels；105-photovoltaic cavitys；106-photovoltaic cavity fresh air inlet valves；107-light
Lie prostrate cavity exit valve；108-photovoltaic cavity air draft inlet valves；109-photovoltaic blowers；2-core apparatus plates；201-level-one whirlpools
Revolve hot and humid area device；202-second level vortex hot and humid area devices；203-exhausting duct inducers；204-exhausting duct interludes；
205-exhausting duct outlet sections；206-fresh flue outlet sections；207-fresh flue interludes；208-fresh flue inducers；209—
Pressure fan；210-PM2.5 filter devices；211-exhaust blowers；212-groove structures；213-level-one fresh air inlets；214-one
The outlet of grade fresh air；215-level-one air draft entrances；216-level-one wind exhausting outlets；217-level-one membrane structures；218-secondary membranes
Shape structure；219-second level fresh air inlets；The outlet of 220-second level fresh airs；221-second level air draft entrances；222-second level air drafts go out
Mouthful；223-level-one fresh air vortex tubes；224-level-one air draft vortex tubes；225-second level fresh air vortex tubes；226-second level air drafts
Vortex tube；227-sealing strips；3-upholstery components；301-air draft entrance shutters；302-fresh air outlet shutters；
303-inside holding decorative integrated plates；304-photovoltaic storage batteries;305-current control devices.
Specific embodiment
The utility model specific embodiment is only the utility model preferred embodiment, and it is practical new to be not intended to limit this
The limitation of type protection scope.Therefore, any change made within the technical characteristics of the utility model, modification, substitution, combination
Or simplify, it should be equivalent substitute mode, be included within the protection scope of the utility model.With reference to the accompanying drawing to this
The specific embodiment of utility model is elaborated further
A kind of Fig. 1-fresh-air ventilation wall shown in Fig. 3, which includes external thermal insulation component 1, core apparatus
Plate 2 and upholstery components 3, three's group are combined into an entirety, as the fresh-air ventilation wall of the utility model.
Outdoor heat insulation module 1 is mounted on external thermal insulation decorative integrated plate 103 by monolith photovoltaic battery panel 104, in external thermal insulation
The contact site on decorative integrated plate 103 surface and photovoltaic battery panel 104 is provided with photovoltaic cavity 105, wind exhausting outlet shutter 101
103 two sides of external thermal insulation decorative integrated plate are separately mounted to fresh air inlet shutter 102；In the fresh air inlet hundred close to fresh flue
103 side of external thermal insulation decorative integrated plate at leaf window 102, is provided with the air port being connected with photovoltaic cavity 105, is provided at air port
Photovoltaic cavity fresh air inlet valve 106；External thermal insulation decorative integrated plate 103 at the air draft entrance shutter 101 close to fresh flue
Side is provided with the air port being connected with photovoltaic cavity 105, and photovoltaic cavity exit valve 107 is provided at air port；Close to exhausting duct
Air draft entrance shutter 102 at 103 bottom of external thermal insulation decorative integrated plate, be provided with the air port being connected with photovoltaic cavity 105,
Photovoltaic cavity air draft inlet valve 108 is provided at air port；Photovoltaic cavity inside is provided with photovoltaic blower 109.
Core apparatus plate 2 is core equipment, and wherein wall inside fresh air duct is mainly by fresh flue entrance 208, level-one
Fresh air vortex tube 223, fresh flue interlude 207, second level fresh air vortex tube 225 are interconnected to constitute with fresh flue outlet section 206；
Wall exhausting duct system is mainly arranged by exhausting duct inducer 203, level-one air draft vortex tube 224, exhausting duct interlude 204, second level
Wind eddies coil 226 is interconnected to constitute with exhausting duct outlet section 205；PM2.5 filter device 210 and pressure fan 209 are successively installed
The entrance 208 in fresh flue, exhaust blower 211 are mounted on exhausting duct outlet section 205, level-one vortex hot and humid area device 201 and two
Grade vortex hot and humid area device 202 is welded on two positions at central symmetry, and level-one membrane structure 217 is mounted on level-one vortex
Inside the groove structure 212 of hot and humid area device 201；Second level membrane structure 218 is mounted on level-one vortex hot and humid area device 202
Groove structure 212 inside；Sealing strip 227 is equipped in groove structure, and membrane structure is cut perpendicular to groove structure 212
Membrane structure can be cleaned or be replaced by extraction and push-in on the direction of facial plane, it can be by extracting out and being pushed into
Row replacement or cleaning.Level-one fresh air inlet 213 is connect with fresh flue entrance 208, among level-one fresh air outlet 214, fresh flue
Section 207 is sequentially connected with 219 three of second level fresh air inlet, and second level fresh air outlet 220 is connect with fresh flue outlet section 206；Level-one
Air draft entrance 215 is connect with exhausting duct inducer 203, and level-one wind exhausting outlet 216, exhausting duct interlude 204 and second level air draft enter
221 threes of mouth are sequentially connected, and second level wind exhausting outlet 222 is connect with exhausting duct outlet section 205.
Upholstery components 3 are by mainly including inside holding decorative integrated plate 303, air draft entrance shutter 301 goes out with fresh air
Mouth shutter 302 is mounted on its both ends, and photovoltaic storage battery 304 is fixed on inside inside holding decorative integrated plate 303;Photovoltaic cell
Plate 104, photovoltaic storage battery 304, pressure fan 209, exhaust blower 210, photovoltaic blower 109, photovoltaic cavity fresh air inlet valve 106, light
Volt cavity exit valve 107, photovoltaic cavity air draft inlet valve 108 connect linkage control by current control device 305.
The fresh air vortex tube and air draft vortex tube of the vortex hot and humid area device, are all made of vortex pipe type structure and set
It counts, air-flow is flowed according to clockwise direction in fresh air vortex tube, and air-flow is flowed according to counter clockwise direction in air draft vortex tube, utilization
Hot and humid area device with turbulent structure, so that fresh air and air draft pass through the runner between fresh air vortex tube and air draft vortex tube
Membrane structure in wall surface realizes sufficient hot and humid area, improves efficiency of damp and hot exchanging, saves heat transfer space, ensure that fresh air
Quality.
Inside holding decorative integrated plate 303, external thermal insulation decorative integrated plate 103 in the ash wall body plate are all made of insulation
Material, heat transfer coefficient is small, the performance with fire-proof and thermal-insulation, while guaranteeing closed with wall frame.
A kind of working principle of fresh-air ventilation wall of the present embodiment is as follows.
When summer operation, outdoor fresh air is under the action of pressure fan 209, from fresh air inlet shutter 102, into fresh flue
Inducer 208 is carried out purification cleaning to it, improves the cleanliness of fresh air, entered from level-one fresh air by PM2.5 filter device 210
Mouth 213 enters level-one vortex hot and humid area device 201, carries out hot and humid area with indoor exhaust wind inside it, improves fresh air parameter
To meet the requirement of indoor environment, level-one fresh air vortex tube 222 is passed sequentially through, the fresh air of level-one exports 214, fresh flue interlude
207, second level fresh air inlet 219, second level fresh air vortex tube 225, second level fresh air outlet 220 and fresh flue middle outlet section 206, pass through
Two-stage heat and wet treatment further increases the scavenging efficiency of equipment, enters the room from indoor fresh air outlet shutter 302.
Indoor exhaust wind enters wall equipment from air draft entrance shutter 301, opens photovoltaic cavity air draft inlet valve 108 and light
Cavity exit valve 107 is lied prostrate, photovoltaic cavity fresh air inlet valve 106 is closed, part air draft enters under the action of photovoltaic blower 109
Photovoltaic cavity 105 improves the working efficiency of photovoltaic battery panel 104 for cooling down 104 bottom plate of photovoltaic battery panel.Remaining air draft is being arranged
Under the action of blower 211, into exhausting duct inducer 203, enter level-one vortex hot and humid area device from level-one air draft entrance 215
201, indoor exhaust wind is handled inside it, hot and humid area is carried out with outdoor fresh air, improves the fresh air parameter entered the room,
To meet the requirement of indoor environment；Successively pass through level-one air draft vortex tube 224, level-one wind exhausting outlet 216, exhausting duct interlude
204, second level air draft entrance 221, second level air draft vortex tube 226 and second level wind exhausting outlet 222, by two-stage heat and wet treatment, into one
Step improves the scavenging efficiency of equipment, is discharged from outdoor wind exhausting outlet shutter 101.
When winter operation, outdoor fresh air enters wall equipment from fresh air inlet shutter 102, opens photovoltaic cavity fresh air and enters
Mouth valve 106 and photovoltaic cavity exit valve 107 close photovoltaic cavity air draft inlet valve 108, and part fresh air is in photovoltaic blower 109
Under effect, into photovoltaic cavity 105, using the waste-heat fresh air cooling photovoltaic cell simultaneously of photovoltaic power generation, remaining fresh air into
Enter core apparatus plate 2, improves the working efficiency of photovoltaic battery panel 104.Under the action of pressure fan 209, another part fresh air into
Enter fresh flue inducer 208, by PM2.5 filter device 210, purification cleaning is carried out to it, improves the cleanliness of fresh air, passes through
Pressure fan 209, fresh flue entrance 208 enter level-one vortex hot and humid area device 201 from level-one fresh air inlet 213；In it
Portion handles outdoor fresh air, improves fresh air parameter to meet the requirement of indoor environment, passes sequentially through level-one fresh air vortex tube
222, the fresh air of level-one exports 214, fresh flue interlude 207, second level fresh air inlet 219, second level fresh air vortex tube 225, second level
Fresh air outlet 220 further increases the scavenging efficiency of equipment by two-stage heat and wet treatment with fresh flue middle outlet section 206, from room
Interior fresh air outlet shutter 302 enters the room.
Indoor exhaust wind exhaust blower 211 effect under from air draft entrance shutter 301, into exhausting duct inducer 203, from one
Grade air draft entrance 215 enters level-one vortex hot and humid area device 201, handles inside it indoor exhaust wind, makes itself and room
Outer fresh air carries out hot and humid area, improves the fresh air parameter entered the room, to meet the requirement of indoor environment；Successively arranged by level-one
Wind eddies coil 224, level-one wind exhausting outlet 216, exhausting duct interlude 204, second level air draft entrance 221, second level air draft vortex tube 226
The scavenging efficiency of equipment is further increased by two-stage heat and wet treatment with second level wind exhausting outlet 222, from indoor wind exhausting outlet
Shutter enters outside Room 101.
Fresh air and air draft in two-stage scroll hot and humid area device air duct pass through peace using the enthalpy difference of fresh air and air draft
Membrane structure between fresh air and air draft vortex air duct carries out hot and humid area, membrane structure molecule hot and humid area film
Material is made；Photovoltaic battery panel 104 is combined with photovoltaic storage battery 304, provides electricity for equipment such as wall inner blowers；Illumination is not
When sufficient, by current control device 305, the electric energy cooperation indoor power supply of photovoltaic battery panel 104 maintains Fan Equipment jointly
Operation；When illumination abundance, by current control device 305, the control of indoor power supply is closed, is mentioned only with photovoltaic battery panel 104
For electric energy；When electric energy surplus, the electricity stored with photovoltaic storage battery 304 is used for night equipment power consumption, maintains equipment
Round-the-clock running.
Claims (6)
1. a kind of fresh-air ventilation wall, it is characterised in that: the fresh-air ventilation wall by outdoor heat insulation module, core apparatus plate with
Upholstery components are constituted, and the outdoor heat insulation module is by external thermal insulation decorative integrated plate, outer window blind assembly, photovoltaic cell
Plate, photovoltaic cavity, photovoltaic cavity fresh air inlet valve, photovoltaic cavity air draft inlet valve and photovoltaic cavity exit valve are constituted, described
Core apparatus plate by level-one vortex hot and humid area device, second level vortex hot and humid area device, fan assembly, wall ducting system with
PM2.5 filter device composition, the upholstery components are by inside holding decorative integrated plate, interior window blind assembly and photovoltaic electric power storage
Pond constitute, the fan assembly, PM2.5 filter device, photovoltaic storage battery, photovoltaic battery panel, photovoltaic cavity fresh air inlet valve,
Photovoltaic cavity air draft inlet valve is connected with photovoltaic cavity exit valve by electric wire, and electric wire is equipped with current control device.
2. a kind of fresh-air ventilation wall according to claim 1, it is characterised in that: the level-one vortex hot and humid area dress
It sets including level-one fresh air vortex tube, level-one air draft vortex tube, level-one fresh air inlet, the outlet of level-one fresh air, level-one air draft entrance, one
Grade wind exhausting outlet and level-one membrane structure, the second level vortex hot and humid area device include second level fresh air vortex tube, second level row
Wind eddies coil, second level fresh air inlet, the outlet of second level fresh air, second level air draft entrance, second level wind exhausting outlet and second level membrane structure, and
And level-one fresh air vortex tube and level-one air draft vortex tube, second level fresh air vortex tube and second level air draft vortex tube are all made of vortex tube
The design of formula structure, level-one fresh air vortex tube are flowed with air-flow in second level fresh air vortex tube according to clockwise direction, level-one air draft whirlpool
Air-flow is flowed according to counter clockwise direction in coil and second level air draft vortex tube.
3. a kind of fresh-air ventilation wall according to claim 2, it is characterised in that: the level-one fresh air vortex tube and one
Grade air draft vortex tube, second level fresh air vortex tube and second level air draft vortex tube are spiraled by " ∞ " cylinder structure and are made, level-one fresh air
Vortex tube is equipped with level-one air draft vortex tube, second level fresh air vortex tube and the upper and lower position of the adjacent synapsis of second level air draft vortex tube
Groove structure is equipped with sealing strip, the level-one membrane structure and second level membrane structure by the wet friendship of molecule heat in groove structure
Film is changed to be made, it is elongated, be fixed in groove structure, and level-one membrane structure with second level membrane structure perpendicular to recessed
It can be extracted out on the direction of slot structure sectional plane and be replaced or cleaned with push-in.
4. a kind of fresh-air ventilation wall according to claim 1, it is characterised in that: the wall ducting system, by wall
Body fresh flue and wall exhausting duct form, and the wall fresh flue is said by fresh flue entrance, fresh flue interlude, fresh air
Mouth section composition, the wall exhausting duct are made of wall exhausting duct entrance, exhausting duct interlude, exhausting duct outlet section, institute
The fan assembly stated is made of pressure fan, exhaust blower and photovoltaic blower, and the PM2.5 filter device is successively installed with pressure fan
In fresh flue entrance, exhaust blower is mounted on exhausting duct outlet section.
5. a kind of fresh-air ventilation wall according to claim 1, it is characterised in that: the external thermal insulation decorative integrated plate
Outer surface is equipped with photovoltaic battery panel, and the outer window blind assembly is made of fresh air inlet shutter, wind exhausting outlet shutter,
The interior window blind assembly is made of fresh air outlet shutter, air draft entrance shutter, the external thermal insulation decorative integrated plate with
Inside holding decorative integrated plate is all made of heat preserving and insulating material.
6. a kind of fresh-air ventilation wall according to claim 1 or 5, it is characterised in that: the photovoltaic storage battery is inlayed
In interior heat insulation decoration integrated plate, the current control device, linkage control fan assembly, PM2.5 filter device, photovoltaic store
Battery, photovoltaic battery panel, photovoltaic cavity fresh air inlet valve, photovoltaic cavity air draft inlet valve and photovoltaic cavity exit valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820633753.XU CN208566956U (en) | 2018-04-29 | 2018-04-29 | A kind of fresh-air ventilation wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820633753.XU CN208566956U (en) | 2018-04-29 | 2018-04-29 | A kind of fresh-air ventilation wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208566956U true CN208566956U (en) | 2019-03-01 |
Family
ID=65481584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820633753.XU Active CN208566956U (en) | 2018-04-29 | 2018-04-29 | A kind of fresh-air ventilation wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208566956U (en) |
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2018
- 2018-04-29 CN CN201820633753.XU patent/CN208566956U/en active Active
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