CN206593220U - A kind of new blower fan of heat exchange window - Google Patents
A kind of new blower fan of heat exchange window Download PDFInfo
- Publication number
- CN206593220U CN206593220U CN201720033603.0U CN201720033603U CN206593220U CN 206593220 U CN206593220 U CN 206593220U CN 201720033603 U CN201720033603 U CN 201720033603U CN 206593220 U CN206593220 U CN 206593220U
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- blower fan
- air
- heat exchange
- ventilating duct
- new blower
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- 230000001172 regenerating effect Effects 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 26
- 230000000694 effects Effects 0.000 description 9
- 239000004744 fabric Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model is related to a kind of blower fan, more particularly to a kind of new blower fan of heat exchange window.A kind of new blower fan of heat exchange window, including include to be respectively provided with the housing of ventilating duct, the two-port of the ventilating duct in the middle part of an air-introduced machine for carrying steering motor, the ventilating duct and be provided with regenerative apparatus；Each air-introduced machine of correspondence, which is provided with ventilating opening, the ventilating opening, on the housing is provided with fairing, and the ventilating opening is connected with the ventilating duct.The utility model is set using the combination of air-introduced machine, regenerative apparatus and fairing, solves the problem of too low temperature directly can not be carried out heat exchange by blower fan.
Description
Technical field
The utility model is related to a kind of blower fan, more particularly to a kind of new blower fan of heat exchange window.
Background technology
Heat-exchange fan is increasingly approved that its main operational principle includes by consumer：Room air passes through return air
Mouth enters in machine, and outdoor is discharged by exhaust fan after Total heat exchange core body；Outdoor air is entered in machine by air inlet, warp
Cross indoor by breeze fan feeding after Total heat exchange core body, wherein, temperature is completed when two strands of air-flows cross at Total heat exchange core body
Degree is exchanged with humidity.So circulation, reaches displacement room air and reduces the purpose of energy consumption.
New blower fan or VMC in the market, main point is with heat exchange and without heat exchange two ways, and
New blower fan with heat exchange is all that bidirectional flow is set.In the new blower fan of bidirectional flow heat exchange, one air channel is empty from outdoor introducing
Gas, sends into indoor after being purified through filtering module；Indoor foul atmosphere is discharged to outdoor by another air channel, and heat exchanger is in
The intersection in 2 air channels, when the air-flow in 2 air channels has the temperature difference, can balance the temperature difference, and save the energy by heat exchange.But
It is this new blower fan or VMC, in north cold area, because the temperature of winter makes outdoor is too low (0 DEG C to -30 DEG C or so), room
Outer air, which is introduced directly into interior, can cause room air fast cooling, and blower fan lacks a cloth wind at the air port of air inlet/outlet
The equipment of transition, air-flow after air port is got in due to the operating principle of fluid, cause cold air start at air port to
Lower flowing, is easily caused the cold and hot skewness of room air in the short time.
Utility model content
The utility model is set using the combination of air-introduced machine, regenerative apparatus and fairing, is solved because blower fan lacks cloth
The transitional facility of wind, the problem of causing the cold and hot skewness of room air in the short time.
A kind of new blower fan of heat exchange window, including include and be respectively provided with the housing of ventilating duct, the two-port of the ventilating duct
Regenerative apparatus is provided with the middle part of one air-introduced machine with steering motor, the ventilating duct；Correspondence is each on the housing described draws
Blower fan, which is provided with ventilating opening, the ventilating opening, is provided with fairing, and the ventilating opening is connected with the ventilating duct；
The fairing includes the current limiting plate for being arranged at ventilating opening, and is arranged at the rectification on the outside of the current limiting plate
Portion；The current limiting plate is circular ring structure, and the rectification part includes the baffle plate being connected with current limiting plate periphery and for rectification
Cowling panel, the cowling panel is provided with multiple rectification holes.
Further, the cowling panel is circular configuration.
Further, in addition to tfi module and controller, the tfi module and controller are respectively arranged in the shell
In vivo, and the controller steering and start and stop that pass through air-introduced machine described in the tfi module timing controlled.
Further, in addition to filter, the filter is arranged at the regenerative apparatus and any one air inducing
Between machine.
Further, the correspondence controller is provided with control panel on the housing, and the control panel is electrically connected
The controller.
Further, the regenerative apparatus is made of ceramic material.
Further, the ventilating duct is rectangular enclosure structure.
Further, the ventilating duct is made of metal material.
A kind of window for being provided with the blower fan, including blower fan described in any of the above, the assembling on the window,
And the body height of the blower fan and the window is highly consistent.
The beneficial effects of the utility model are：
1. the utility model is set using the combination of air-introduced machine, regenerative apparatus and fairing, solve because blower fan lacks
The transitional facility of cloth wind, the problem of causing the cold and hot skewness of room air in the short time；Specifically, ventilating duct is passed through
The air-introduced machine at two ends carries out the ventilation work of air inducing and air-supply, when the air-flow in air by the attraction of an air-introduced machine from rectification
Device enters after ventilating duct, by air-flow carried out an of short duration buffering, rectification adjustment, carried out first by upper air-introduced machine anti-
To rotation, by higher air-flow back suction to the ventilating duct of indoor temperature, when the higher air-flow of temperature passes through the accumulation of heat in ventilating duct
During body, the heat in air-flow is stored, while the air-flow after cooling is exported to outdoor by lower air-introduced machine；Then pass through
Lower air-introduced machine is rotated forward, and the relatively low air-flow of outdoor temperature is dispersed in ventilating duct, when the gas in ventilating duct
When stream is by regenerative apparatus, the relatively low air-flow of temperature is heated by the temperature stored in regenerative apparatus, so as to reach
Exported, and sprayed by fairing by upper air-introduced machine to the effect of lifting air-flow temperature, and by the air-flow lifted after temperature,
The effect of regulation temperature is reached, the air-flow in ventilating duct is subjected to equal repoussage stream further through fairing, brought to interior
Preferable air-flow and experience；Solve use air-conditioning in current family carry out the power consumption that indoor and outdoor temperature regulation produces it is big,
The problem of cost is high, effectively while the energy is saved, realizes heat exchange work easily and fast, and have into
This low advantage.
2. the utility model uses the setting of current limiting plate, it is beneficial to by the way that the bore of ventilating opening is reduced, so as to increase logical
Air-flow velocity at air port；By being provided with the setting of multiple rectification holes on cowling panel, it is beneficial to rectification part by rectification hole
Interior air-flow carries out pressure distribution, and is uniformly quickly sprayed at rectification hole by high velocity air, and then adds the friendship of blower fan
The range of jet of scavenging flow, is beneficial to make the indoor effect for reaching cloth wind.
3. the utility model uses cowling panel for the setting of circular configuration, it is beneficial to realize that rectification part is cylinder type,
When preventing the rectangular cross-section because of rectification part, rectangle angle extrudes to form flow-disturbing because of the flow direction of air-flow, so as to cause local
Flow velocity is excessive, causes the problem of air flow method is uneven, using the setting of circular configuration, is beneficial to make air-flow return in rectification part
Turn of tidal stream goes out, and plays a part of pressing at the uniform velocity.
4. the utility model is using the setting of tfi module and controller, it is beneficial to by tfi module timing to control
Device, which is sent, turns to timing signal and work timing signal, and the steering timing signal that controller is sent according to tfi module controls two
The conversion that air-introduced machine is timed is turned to, so as to carry out the conversion work of exhausting and air-supply；The work sent according to tfi module
Timing signal controls the start and stop that two air-introduced machines are timed, so as to control the air-flow exchange work in ventilating duct, is beneficial to real
The work of now delay heat exchange, and save the energy.
5. the utility model uses the setting of filter, it is beneficial to prevent because traditional air interchanger lacked air filtering
The step of, if dirty air occurs in one end of ventilation, the environment of the air exchanged can be damaged, and for existing
The poorer situation of modern air quality, this air interchanger can bring large effect to indoor air quality, pass through increase
The installation of filter, is beneficial to improve the air quality for being exchanged both sides, so as to ensure that the air quality of room air.
6. the utility model uses the setting of control panel, it is beneficial to facilitate operating personnel to adjust at any time by guidance panel
Steering timing and work timing time in tfi module.
7. the utility model is used installs the setting of blower fan in one end of window, it is beneficial to the installation process for simplifying blower fan,
And prevent existing assembling to destroy the phenomenon of building structure；Specifically, traditional blower fan is mainly two kinds, center
Formula and wall-mounted, central type must be the progress mounting arrangements pipeline before room finish, and pipe laying lintel also needs to hole sometimes
Mouthful, house architectural structure can be destroyed；Wall-mounted blower fan is to hole on the wall, if the room fitted up occurs two
Secondary pollution；The utility model sets the design of blower fan by being combined on window, reduces the volume of blower fan, is beneficial to realization and changes
One block of glass can be just a set of VMC of user installation, quick for installation, and be not in secondary pollution, will not also destroy
The family structure fitted up；Further also solving general window blower fan can only take a breath, the problem of not possessing heat exchange.
Brief description of the drawings
Fig. 1 is the structural representation (side view) of the utility model blower fan；
Fig. 2 is the structural representation (front view) of the utility model blower fan；
Fig. 3 is the structural representation (rearview) of the utility model blower fan；
Fig. 4 is the fairing structural representation of the utility model blower fan；
Fig. 5 is the electrical equipment connection framework figure of the utility model blower fan；
Fig. 6 is the structural representation of the window of the present utility model for being provided with the blower fan.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
As shown in Figure 1, Figure 2 and Figure 3, a kind of new blower fan of heat exchange window is present embodiments provided, including includes ventilating duct 1
Housing 2, be respectively provided with the two-port of the ventilating duct in the middle part of an air-introduced machine 4 for carrying steering motor 3, the ventilating duct and set
It is equipped with regenerative apparatus 5；Each air-introduced machine of correspondence, which is provided with ventilating opening 6, the ventilating opening, on the housing is provided with rectification
Device 7, and the ventilating opening connects with the ventilating duct.The utility model is using air-introduced machine, regenerative apparatus and fairing
With reference to setting, the problem of too low temperature directly can not be carried out heat exchange by blower fan is solved；Specifically, ventilating duct two is passed through
The air-introduced machine at end carries out the ventilation work of air inducing and air-supply, when the air-flow in air is filled by the attraction of an air-introduced machine from rectification
Put into after ventilating duct, by air-flow carried out an of short duration buffering, rectification adjustment, carried out first by upper air-introduced machine reverse
Rotate, by higher air-flow back suction to the ventilating duct of indoor temperature, when the higher air-flow of temperature passes through the heat storage in ventilating duct
When, the heat in air-flow is stored, while the air-flow after cooling is exported to outdoor by lower air-introduced machine；Then pass through
Lower air-introduced machine is rotated forward, and the relatively low air-flow of outdoor temperature is dispersed in ventilating duct, when the gas in ventilating duct
When stream is by regenerative apparatus, the relatively low air-flow of temperature is heated by the temperature stored in regenerative apparatus, so as to reach
Exported, and sprayed by fairing by upper air-introduced machine to the effect of lifting air-flow temperature, and by the air-flow lifted after temperature,
The effect of regulation temperature is reached, the air-flow in ventilating duct is subjected to equal repoussage stream further through fairing, brought to interior
Preferable air-flow and experience；Solve use air-conditioning in current family carry out the power consumption that indoor and outdoor temperature regulation produces it is big,
The problem of cost is high, effectively while the energy is saved, realizes heat exchange work easily and fast, and have into
This low advantage.
As shown in figure 4, the fairing includes the current limiting plate 8 for being arranged at ventilating opening, and it is arranged at the current limiting plate
The rectification part in outside；The current limiting plate is circular ring structure, and the rectification part includes the baffle plate 801 being connected with current limiting plate periphery
With the cowling panel 802 for rectification, the cowling panel is provided with multiple rectification holes 803.The utility model is set using current limiting plate
Put, be beneficial to by the way that the bore of ventilating opening is reduced, so that the air-flow velocity at stronger ventilation mouthful；By being provided with cowling panel
The setting of multiple rectification holes, is beneficial to the air-flow in rectification part is carried out into pressure distribution by rectification hole, and pass through high velocity air
Uniformly quickly sprayed at rectification hole, and then add the range of jet of the exchange air-flow of blower fan, be beneficial to make interior reach cloth
The effect of wind.It should be noted that the correspondence current limiting plate is provided with baffle plate on cowling panel in the present embodiment, for preventing gas
Stream directly send outflow in the middle part of cowling panel, so as to influence rectification effect.
As shown in figures 1 and 3, the cowling panel is circular configuration.The utility model uses cowling panel for circular configuration
Set, be beneficial to realize that rectification part is cylinder type, when preventing the rectangular cross-section because of rectification part, rectangle angle is because of air-flow
Flow direction extrude to form flow-disturbing, so as to cause local flow velocity excessive, cause the problem of air flow method is uneven, using circle knot
The setting of structure, is beneficial to make air-flow turn round outflow in rectification part, plays a part of pressing at the uniform velocity.
As shown in figure 5, also including tfi module and controller, the tfi module and controller are respectively arranged in the shell
In vivo, and the controller steering and start and stop that pass through air-introduced machine described in the tfi module timing controlled.The utility model is adopted
With the setting of tfi module and controller, it is beneficial to send steering timing signal and work to controller by tfi module timing
Make timing signal, the steering timing signal that controller is sent according to tfi module controls the conversion that two air-introduced machines are timed
Turn to, so as to carry out the conversion work of exhausting and air-supply；The work timing signal sent according to tfi module controls two air inducing
The start and stop that machine is timed, so as to control the air-flow exchange work in ventilating duct, are beneficial to the work for realizing delay heat exchange, and
Save the energy.
As shown in Fig. 2 also including filter 9, the filter is arranged at the regenerative apparatus and any one draws
Between blower fan.The utility model uses the setting of filter, is beneficial to prevent because traditional air interchanger lacked air filtering
The step of, if dirty air occurs in one end of ventilation, the environment of the air exchanged can be damaged, and for existing
The poorer situation of modern air quality, this air interchanger can bring large effect to indoor air quality, pass through increase
The installation of filter, is beneficial to improve the air quality for being exchanged both sides, so as to ensure that the air quality of room air.
As shown in figures 1 to 6, the correspondence controller is provided with control panel 10, and the chain of command on the housing
Plate electrically connects the controller.The utility model uses the setting of control panel, is beneficial to facilitate operating personnel to pass through operating surface
Plate adjusts steering timing and work timing time in tfi module at any time.
In the present embodiment, the regenerative apparatus is made of ceramic material.It should be noted that the accumulation of heat in the present embodiment
Device and filter are installed in the ventilating duct by the support 11 with grid.And the regenerative apparatus uses Jiangxi
The honeycomb ceramic heat accumulator of the scientific and technological limited industrial company of Pingxiang source hair, filter is 1170*570*69mm how bright height
Non-inductive windings filter is imitated, tfi module uses DFJ-120 electric fan timers.
In the present embodiment, the ventilating duct is rectangular enclosure structure.The ventilating duct is made of metal material.This implementation
Set in example using the ventilating duct of metal material, be beneficial to thermal conductivity using metal by the air-flow maximum magnitude in ventilating duct
Carry out heat transfer.
A kind of window for being provided with the blower fan, including blower fan 12 described in any of the above, the assembling is in the window
On 13, and the body height of the blower fan and the window is highly consistent.The utility model is used to be installed in one end of window
The setting of blower fan, is beneficial to the installation process for simplifying blower fan, and prevent existing assembling to destroy showing for building structure
As；Specifically, traditional blower fan is mainly two kinds, central type and wall-mounted, and central type must be carried out before room finish
Mounting arrangements pipeline, sometimes pipe laying lintel also need the mouth that holes, house architectural structure can be destroyed；Wall-mounted blower fan is will be in wall
On hole, if secondary pollution occurs in the room fitted up；The utility model sets wind by being combined on window
The design of machine, reduces the volume of blower fan, and it just can be a set of VMC of user installation to be beneficial to realization to change one block of glass, installed
Fast, and be not in secondary pollution, the family structure fitted up will not also be destroyed；Further also solve general window
Formula blower fan can only take a breath, the problem of not possessing heat exchange.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (9)
1. a kind of new blower fan of heat exchange window, it is characterised in that the housing including including ventilating duct, the two-port of the ventilating duct
Inside it is respectively provided with the middle part of an air-introduced machine for carrying steering motor, the ventilating duct and is provided with regenerative apparatus；Correspondence on the housing
Each air-introduced machine, which is provided with ventilating opening, the ventilating opening, is provided with fairing, and the ventilating opening and the ventilating duct
Connection；
The fairing includes the current limiting plate for being arranged at ventilating opening, and is arranged at the rectification part on the outside of the current limiting plate；Institute
Current limiting plate is stated for circular ring structure, the rectification part includes the baffle plate being connected with current limiting plate periphery and the rectification for rectification
Plate, the cowling panel is provided with multiple rectification holes.
2. the new blower fan of heat exchange window according to claim 1, it is characterised in that the cowling panel is circular configuration.
3. the new blower fan of heat exchange window according to claim 2, it is characterised in that also including tfi module and controller,
The tfi module and controller are respectively arranged in the housing, and the controller passes through the tfi module timing controlled
The steering and start and stop of the air-introduced machine.
4. the new blower fan of heat exchange window according to claim 3, it is characterised in that also including filter, the filtering
Device is arranged between the regenerative apparatus and any one air-introduced machine.
5. the new blower fan of heat exchange window according to claim 4, it is characterised in that the correspondence controller is set on housing
There is control panel, and the control panel electrically connects the controller.
6. the new blower fan of heat exchange window according to claim 5, it is characterised in that regenerative apparatus uses ceramic material system
Into.
7. the new blower fan of heat exchange window according to claim 1, it is characterised in that ventilating duct is rectangular enclosure structure.
8. the new blower fan of heat exchange window according to claim 7, it is characterised in that the ventilating duct uses metal material system
Into.
9. a kind of window for being provided with the blower fan, includes claim 1-8 any blower fan, it is characterised in that the wind
Machine is installed on the window, and the body height of the blower fan and the window is highly consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720033603.0U CN206593220U (en) | 2017-01-11 | 2017-01-11 | A kind of new blower fan of heat exchange window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720033603.0U CN206593220U (en) | 2017-01-11 | 2017-01-11 | A kind of new blower fan of heat exchange window |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206593220U true CN206593220U (en) | 2017-10-27 |
Family
ID=60127394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720033603.0U Active CN206593220U (en) | 2017-01-11 | 2017-01-11 | A kind of new blower fan of heat exchange window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206593220U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266837A (en) * | 2018-01-31 | 2018-07-10 | 山东星火科学技术研究院 | A kind of clarifier of bi-directional discharging air draft component |
| CN109237694A (en) * | 2018-08-16 | 2019-01-18 | 珠海格力电器股份有限公司 | Total heat exchange fresh air device and installation structure and control method thereof |
| CN109373493A (en) * | 2018-10-17 | 2019-02-22 | 苏群健 | Indoor and outdoor ventilation device for balcony |
-
2017
- 2017-01-11 CN CN201720033603.0U patent/CN206593220U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266837A (en) * | 2018-01-31 | 2018-07-10 | 山东星火科学技术研究院 | A kind of clarifier of bi-directional discharging air draft component |
| CN109237694A (en) * | 2018-08-16 | 2019-01-18 | 珠海格力电器股份有限公司 | Total heat exchange fresh air device and installation structure and control method thereof |
| CN109373493A (en) * | 2018-10-17 | 2019-02-22 | 苏群健 | Indoor and outdoor ventilation device for balcony |
| CN109373493B (en) * | 2018-10-17 | 2020-12-04 | 杭州迪喾软件科技有限公司 | Indoor and outdoor ventilation device for balcony |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181204 Address after: 750001 No. 5 Business Building, No. 20 Building, Jingmo Home, Minority North Street, Xingqing District, Yinchuan City, Ningxia Hui Autonomous Region Patentee after: Ningxia Asahi Energy Saving Technology Co., Ltd. Address before: 750001 Ruyiyuan 1-5-502, Fenghuang North Street, Xingqing District, Yinchuan City, Ningxia Hui Autonomous Region Patentee before: Xu Wenxue |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningxia sunshine square energy saving Polytron Technologies Inc Assignor: Ningxia Asahi Energy Saving Technology Co., Ltd. Contract record no.: 2018640000004 Denomination of utility model: New fan of heat exchange window formula Granted publication date: 20171027 License type: Exclusive License Record date: 20181218 |