CN105890020A - Suspended ceiling warmer with fresh air function - Google Patents

Suspended ceiling warmer with fresh air function Download PDF

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Publication number
CN105890020A
CN105890020A CN201410782755.1A CN201410782755A CN105890020A CN 105890020 A CN105890020 A CN 105890020A CN 201410782755 A CN201410782755 A CN 201410782755A CN 105890020 A CN105890020 A CN 105890020A
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CN
China
Prior art keywords
air
indoor
switching mechanism
passage
function
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.)
Pending
Application number
CN201410782755.1A
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Chinese (zh)
Inventor
张时勇
庞天喜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU PINYUE ELECTRIC APPLIANCE Co Ltd
Original Assignee
HANGZHOU PINYUE ELECTRIC APPLIANCE Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by HANGZHOU PINYUE ELECTRIC APPLIANCE Co Ltd filed Critical HANGZHOU PINYUE ELECTRIC APPLIANCE Co Ltd
Priority to CN201410782755.1A priority Critical patent/CN105890020A/en
Publication of CN105890020A publication Critical patent/CN105890020A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a suspended ceiling warmer with a fresh air function and belongs to the technical field of heating, ventilating, illuminating and the like. The suspended ceiling warmer comprises a box, a cover plate, a centrifugal spiral casing, an exhaust channel, an air exhaust switching mechanism, an air inlet channel, an air inlet switching mechanism, an outdoor ventilation port and an indoor blowing port. The box is of a double-layer structure, the centrifugal spiral casing and the exhaust channel are arranged in one layer, and the air inlet channel is arranged in the other layer. A wind wheel and a motor are arranged in the centrifugal spiral casing. The exhaust channel is the exhaust channel of the centrifugal spiral casing. The air inlet channel is the air inlet channel of the centrifugal spiral casing. The outdoor ventilation port is formed in the sidewall of the box and is a shared channel for exhausting air outdoors and taking fresh air indoors. The indoor blowing port is formed in the sidewall of the box or in the exhaust channel or at the tail end of the exhaust channel. The suspended ceiling warmer has the functions of a traditional warmer and can supply fresh air into a room and blow air to the two different positions in the room with the same dimensions as a box of an existing suspended ceiling warmer.

Description

Suspended ceiling heater with fresh air function
Technical field
The invention discloses the suspended ceiling heater of a kind of band fresh air function, it both had heating, take a breath, dry, the existing ceiling mounting type such as illumination takes The conventional func of warmer, can provide for two indoor diverse locations simultaneously blow warm braw, cool breeze or new for the function of the new wind of indoor offer again respectively The function of wind, therefore, belong to heating, ventilate, the technical field such as illumination.
Background technology
Under the overall background that air quality in recent years is substantially deteriorated and quality of life requirement is improved constantly by people, market occur in that a lot About the product of air cleaning, but from the point of view of function, the most simply room air is purified, it is impossible to effectively solve the humidity of room air, contain Problems such as oxygen amount, abnormal flavour, antibacterial, and new wind is imported indoor and can effectively solve the problems referred to above, certain market also has can the product of new wind, than Such as Double-way axial flow ventilation fan product, but this series products often have ignored the purification of wind new to outdoor, and product function be also the most single ventilation or Air-supply;For indoor heater, including the warmer of ceiling mounting type, it is limited to product size and indoor location interface, also merely provides heating, change Gas, dry, the function such as illumination, it is more difficult to the function of new wind is provided.
The warmer of a kind of band fresh air function provided by the present invention, is provided that outside the function that warming appliance that usual ceiling mounting type is installed is standby, moreover it is possible to For indoor offer through purification after new wind, according to the region different requirements from cool wind blowing function in summer region of warming oneself winter in toilet, it is provided that two The blowing mouth of diverse location, and installation dimension and installation interface are completely the same with suspended ceiling heater in the market, and outdoor ventilation mouth is indoor Air draft and the common-use tunnel of indoor fresh air, therefore, whether new house finishing or old housing reform are apt to be perplexed all without by installing, and are more to carry For fresh air function, it is truly realized and simple, a tractor serves several purposes effect of diverse in function is installed, there is the strongest practical dissemination.
Summary of the invention
The technical problem to be solved is to provide a kind of installation dimension and installation interface and suspended ceiling heater complete in the market Cause, have heating, take a breath, dry, on the basis of illumination functions, can be able to be indoor while of again for the indoor offer new wind after purifying Two diverse locations provide respectively and blow warm braw, cool breeze or the function of new wind.To this end, the present invention is by the following technical solutions:
With the suspended ceiling heater of fresh air function, it include casing, cover plate, anticentripetal spiral casing, air exhaust passage, air draft switching mechanism, air intake passage, Air intake switching mechanism, outdoor ventilation mouth, indoor blowing mouth;Casing is double-decker, is provided with described anticentripetal spiral casing and wind output channel, separately in one layer Being provided with wind inlet channel in one layer, be provided with wind wheel and motor in anticentripetal spiral casing, its sidewall is provided with exhaust outlet, and its front end is provided with air gathering plate, on air gathering plate Being additionally provided with the air inlet of anticentripetal spiral casing, air exhaust passage is the passage of anticentripetal spiral casing air draft, and it is by the exhaust outlet on anticentripetal spiral casing sidewall and anticentripetal spiral casing Connection, air draft switching mechanism is located on air exhaust passage, and air intake passage is the passage of anticentripetal spiral casing air intake, and it is by the air inlet on air gathering plate and is centrifuged Spiral case connects, and it is two wind inlet channels being made up of with air gathering plate, wall box and air exhaust passage outer wall air intake switching mechanism and cover plate, wherein One is indoor air intake passage, and another is outdoor air intake passage, and described outdoor ventilation mouth is located at the sidewall of casing, and indoor blowing mouth is located at casing In sidewall or air exhaust passage or the end of air exhaust passage, the quantity of set indoor blowing mouth is 1 or 2;
The air draft switching mechanism being located on air exhaust passage is 1 or 2, air draft switching mechanism quantity and indoor blowing mouth be set number is set Measure and there is following corresponding relation:
A) when the quantity of indoor blowing mouth is 1, corresponding air draft switching mechanism is also 1, and its function is to close during the outdoor ventilation mouth of conducting Indoor blowing mouth, conducting indoor blowing mouth during ventilation mouth outside close chamber,
B) when the quantity of indoor blowing mouth is 2, corresponding air draft switching mechanism is also 2, the now function of the 1st air draft switching mechanism It is to close, during the outdoor ventilation mouth of conducting, the passage leading to the 2nd air draft switching mechanism, outside close chamber, during ventilation mouth, leads to the 2nd row The passage of wind switching mechanism, and when the function of the 2nd air draft switching mechanism is conducting indoor 1st blowing mouth in close chamber the 2nd blow Air port, conducting indoor 2nd blowing mouth during the 1st blowing mouth in close chamber;
Described air draft switching mechanism includes switching air door and switch motor, and switching air door is under the driving of switch motor, it is achieved on and off outdoor is changed QI KOU and the different blowing mouths of indoor, above the air inlet that described air intake switching mechanism is located on air gathering plate, it is provided with driving means, and air intake switches The function of mechanism is: under the effect of driving means, and during conducting indoor air intake passage, close chamber's external air inlet passage, turns on during air intake passage in close chamber Outdoor air intake passage, is additionally provided with heater element on air exhaust passage, and the air draft before described heater element is located at indoor blowing mouth or after indoor blowing mouth is led to On road, being additionally provided with air cleaner on outdoor air intake passage, outdoor ventilation mouth is to outdoor air draft and common-use tunnel from new wind to indoor that enter.
Owing to using technique scheme, the present invention is before the box sizes not changing the warmer that existing ceiling mounting type is installed and mounting structure Put, application air intake passage in air intake switching mechanism structure design, change existing product can only in installation room the limitation of air intake, accomplish root According to demand, blower fan can select from indoor air intake or from outdoor air intake, additionally by being provided with air draft switching mechanism in blower fan wind output channel, permissible The air-out controlling blower fan is to arrange to outdoor, or row is to indoor, which solves the function that can provide new wind, and is provided with on the passage of new wind Air cleaner, meets the current demand of air cleaning, the most according to demand, it is provided that two different blowing mouths, therefore, and the present invention's Provide the benefit that:
The most functionally: both had heating that existing suspended ceiling heater possesses, dry, take a breath, the conventional func such as illumination, be provided that again The fresh air function that existing product does not possesses, moreover it is possible to warm oneself winter region and cool wind blowing function in summer region according to toilet Different demands, two indoor blowing mouths are set, it is achieved have winter blow the heating region of warm braw, summer has and blows The cool breeze region of cool breeze;
2. in installation: owing to installation dimension is consistent with existing product with installation interface, and outdoor ventilation mouth be indoor air-changing and indoor new The common-use tunnel of wind, is to comply fully with existing installation environment and install custom, had both been suitable for new house finishing and has also fitted Close old housing reform to be apt to, so, install the simplest but also convenient;
3. in terms of benefit: owing to being a tractor serves several purposes, but also continue to use ceiling mounting type Installation Modes, both continue to use existing suspended ceiling heater Installation Modes, is not required to again take the interior space, in the case of complete machine cost increases seldom, adds new wind Function, and heating blowing mouth and cool breeze blowing mouth can be respectively provided with in indoor, meet the difference in winter and summer Demand, has good marketing benefit.
Accompanying drawing illustrates:
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Accompanying drawing 1 is provided with structural blast schematic diagram during 1 air draft switching mechanism for the present invention;
Schematic perspective view when heating is dried after dismounting partial cover plate when accompanying drawing 2 is provided with 1 air draft switching mechanism for the present invention;
Schematic perspective view during indoor exhaust wind after partial cover plate is removed when accompanying drawing 3 is provided with 1 air draft switching mechanism for the present invention;
Schematic perspective view during indoor fresh air after partial cover plate is removed when accompanying drawing 4 is provided with 1 air draft switching mechanism for the present invention;
Accompanying drawing 5 is provided with structural blast schematic diagram during 2 air draft switching mechanisms for the present invention;
Accompanying drawing 6 is provided with schematic perspective view during 2 air draft switching mechanisms for the present invention;
Detailed description of the invention:
Embodiment:
Referring to the drawings 1, when the present invention is provided with 1 air draft switching mechanism, casing 1 is double-decker, is provided with in a layer in its lower section Anticentripetal spiral casing 2, is provided with wind wheel 4 and motor 3 in anticentripetal spiral casing, is provided with exhaust outlet 20 in the side of anticentripetal spiral casing, with exhaust outlet even Connect that communicate is air exhaust passage 13, wind output channel 13 is provided with the air draft switching being made up of switching air door 14 and switch motor 12 Mechanism and indoor blowing mouth 16 and heater element 15;It is provided with air gathering plate 6 in the front end of anticentripetal spiral casing, air gathering plate is provided with anticentripetal spiral casing Air inlet 7, air inlet 7 top is provided with air intake switching mechanism 8, and it is in the superstructure of casing 1, and air intake switching mechanism 8 sets There is driving means 5, outdoor wind inlet channel is provided with air cleaner 9, is in body structure same layer with air intake switching mechanism 8 Cover plate 10, which is provided with indoor blowing mouth 16 through hole 11, the sidewall of casing 1 is additionally provided with outdoor ventilation mouth 18.
Referring to the drawings 1, accompanying drawing 2, air intake switching mechanism 8, under the effect of driving means 5, selects from indoor air intake, room air Entering from the right flank of air intake switching mechanism, air inlet 7 enter in wind wheel 4, under the effect of motor 3, room air is discharged to In the supply air duct of anticentripetal spiral casing, then entering into wind output channel 13 from exhaust outlet 20, now switching air door 14 is at switch motor 12 Under effect, import to room air, in indoor blowing mouth 16, after the heating of heater element 15, after becoming hot blast, be discharged to indoor again, Achieving the function of heating, if turning off heater element 15, then can realize the function of blowing.
Referring to the drawings 1, accompanying drawing 3, air intake switching mechanism 8, under the turning effort of driving means 5, selects from indoor air intake, indoor Air enters from the right flank of air intake switching mechanism, air inlet 7 enter in wind wheel 4, under the effect of motor 3, and room air quilt Being discharged in the supply air duct of anticentripetal spiral casing, then enter into wind output channel 13 from exhaust outlet 20, now switching air door 14 is at switch motor 12 Effect under, import to room air, in outdoor ventilation mouth 18, through exhaust duct, room air is discharged to outdoor, it is achieved that the merit of ventilation Can, i.e. indoor exhaust wind.
Referring to the drawings 1, accompanying drawing 4, air intake switching mechanism 8, under the turning effort of driving means 5, selects from outdoor air intake, outdoor The outdoor that air enters from the airduct being connected to outdoor ventilation mouth 18 successively, passes through outdoor ventilation mouth 18, designs in casing 1 After air intake passage, purification via air cleaner 9, enter from the left surface of air intake switching mechanism, then entered into wind wheel by air inlet 7 In 4, under the effect of motor 3, outdoor air is sent in the supply air duct of anticentripetal spiral casing, then enters into wind output channel 13 from exhaust outlet 20 In, now switching air door 14 is under the effect of switch motor 12, is imported to by outdoor air in blowing mouth 16, and by outdoor fresh air Deliver to indoor, it is achieved that the function of new wind.
Similarly, referring to the drawings 5, accompanying drawing 6, when the present invention is provided with 2 air draft switching mechanisms, expressed by accompanying drawing 1-accompanying drawing 4 Difference when being provided with 1 air draft switching mechanism be:
1. on the sidewall of casing 1, it is additionally provided with the 2nd the indoor blowing mouth 19 for realizing blowing function;
2. on wind output channel 13, it is additionally provided with the 2nd air intake switching mechanism, is made up of switching air door 17 and switch motor 21;
So, when realizing heating blowing or fresh air function, under the effect of the 2nd air draft switching mechanism, can select to blow from the 1st indoor Air port 16 is to indoor realization heating blowing or fresh air function, or selects from the indoor blowing mouth of the 2nd be located at wall box 19 by being enclosed within Airduct thereon, it is achieved in heating blowing or the fresh air function in other regions indoor, so, set that the meaning of 1 indoor blowing mouth is can be more Indoor different position provides heating, cool wind blowing function or fresh air function.
Certainly, similar with the suspended ceiling type warmer on market, the present invention also can be provided with panel, can be provided with lighting module on panel, therefore, Can have illumination functions.
These are only the application several embodiments, according to different occasions and different purposes, can extend a lot of broad-spectrum heating, Ventilating or new wind product, therefore the application is not limited to this, the changes that any person skilled in the art can think of, all should fall the application's In protection domain.

Claims (7)

1. the suspended ceiling heater of band fresh air function, it is characterised in that it includes casing, cover plate, anticentripetal spiral casing, air exhaust passage, air draft switching mechanism, enters Wind passage, air intake switching mechanism, outdoor ventilation mouth, indoor blowing mouth;
Described casing is double-decker, is provided with described anticentripetal spiral casing and wind output channel, is provided with described wind inlet channel in another layer in one layer;
Being provided with wind wheel and motor in described anticentripetal spiral casing, its sidewall is provided with exhaust outlet, and its front end is provided with air gathering plate, and described air gathering plate is provided with centrifugal snail The air inlet of shell;
Described air exhaust passage is the passage of anticentripetal spiral casing air draft, and it is connected with anticentripetal spiral casing by the described exhaust outlet on anticentripetal spiral casing sidewall, described Air draft switching mechanism is located on air exhaust passage;
Described air intake passage is the passage of anticentripetal spiral casing air intake, and it is connected with anticentripetal spiral casing by the air inlet on described air gathering plate, and it is to be cut by air intake Two wind inlet channels that converting mechanism and cover plate are constituted with air gathering plate, wall box and air exhaust passage outer wall, one of them is indoor air intake passage, Another is outdoor air intake passage;
Described outdoor ventilation mouth is located at the sidewall of described casing, and described indoor blowing mouth is located in the sidewall of described casing or described air exhaust passage or air draft The end of passage, the quantity of set indoor blowing mouth is 1 or 2.
2. the suspended ceiling heater of band fresh air function as claimed in claim 1, it is characterised in that the described air draft switching mechanism being located on air exhaust passage is 1 Individual or 2, there is following corresponding relation in the quantity that arranges arranging quantity and described indoor blowing mouth of described air draft switching mechanism:
A, when the quantity of indoor blowing mouth is 1, corresponding air draft switching mechanism is also 1, and its function is to close during the outdoor ventilation mouth of conducting Conducting indoor blowing mouth during ventilation mouth outside indoor blowing mouth, close chamber,
B, when the quantity of indoor blowing mouth is 2, corresponding air draft switching mechanism is also 2, the now function of the 1st air draft switching mechanism It is to close, during the outdoor ventilation mouth of conducting, the passage leading to the 2nd air draft switching mechanism, outside close chamber, during ventilation mouth, leads to the 2nd row The passage of wind switching mechanism, and when the function of the 2nd air draft switching mechanism is conducting indoor 1st blowing mouth in close chamber the 2nd blow Air port, conducting indoor 2nd blowing mouth during the 1st blowing mouth in close chamber.
3. the suspended ceiling heater of band fresh air function as claimed in claim 2, it is characterised in that described air draft switching mechanism includes switching air door and switching electricity Machine, switching air door is under the driving of switch motor, it is achieved on and off outdoor ventilation mouth and the different blowing mouths of indoor.
4. the suspended ceiling heater of band fresh air function as claimed in claim 1, it is characterised in that described air intake switching mechanism is located at entering on described air gathering plate Above air port, it is provided with driving means, and the function of air intake switching mechanism is: under the effect of driving means, closes during the indoor air intake passage of conducting Closed chamber external air inlet passage, conducting outdoor air intake passage during air intake passage in close chamber.
5. the suspended ceiling heater of band fresh air function as claimed in claim 1, it is characterised in that be additionally provided with heater element on described air exhaust passage, described On air exhaust passage before thermal element is located at indoor blowing mouth or after indoor blowing mouth.
6. the suspended ceiling heater of band fresh air function as claimed in claim 1, it is characterised in that be additionally provided with air cleaner on described outdoor air intake passage.
7. the suspended ceiling heater of band fresh air function as claimed in claim 1, it is characterised in that described outdoor ventilation mouth is to outdoor air draft and to enter to indoor The common-use tunnel of new wind.
CN201410782755.1A 2014-12-17 2014-12-17 Suspended ceiling warmer with fresh air function Pending CN105890020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410782755.1A CN105890020A (en) 2014-12-17 2014-12-17 Suspended ceiling warmer with fresh air function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410782755.1A CN105890020A (en) 2014-12-17 2014-12-17 Suspended ceiling warmer with fresh air function

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Publication Number Publication Date
CN105890020A true CN105890020A (en) 2016-08-24

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106642434A (en) * 2017-01-20 2017-05-10 杭州奥普卫厨科技有限公司 Purification device capable of switching fresh air function and air exchange function
CN106677461A (en) * 2017-03-02 2017-05-17 嘉兴市品鼎电器有限公司 Integrated ceiling
CN107192081A (en) * 2017-07-24 2017-09-22 北京碧水源膜科技有限公司 A kind of fresh air-changing device and fully-automatic intelligent air regenerating device
CN107883424A (en) * 2017-11-17 2018-04-06 浙江奥华电气有限公司 A kind of multifunctional heater for being aerated ventilation
CN108036455A (en) * 2017-12-04 2018-05-15 佛山市川东磁电股份有限公司 A kind of room air monitors ventilation unit
CN108386950A (en) * 2018-05-02 2018-08-10 皓庭(唐山)环境科技有限公司 The cabinet type new wind turbine of civilian dress type
CN108826628A (en) * 2018-07-25 2018-11-16 上海龙胜实业有限公司 A kind of air duct mechanism in Domestic ventilation machine
CN109386964A (en) * 2018-11-09 2019-02-26 上海龙胜实业有限公司 A kind of new airing radiator
CN110145833A (en) * 2019-04-09 2019-08-20 惠州市祥兴机械设备有限公司 Between a kind of box-type list Fan Equipment
CN110785614A (en) * 2018-03-05 2020-02-11 首尔伟傲世有限公司 air conditioner
CN110848864A (en) * 2019-12-10 2020-02-28 常州机电职业技术学院 Compact new trend system wind cabinet
CN111623418A (en) * 2020-06-30 2020-09-04 广东美的制冷设备有限公司 Fresh air module and air conditioner indoor unit
CN113883597A (en) * 2020-07-01 2022-01-04 广东美的制冷设备有限公司 Air conditioner
CN116592437A (en) * 2023-05-29 2023-08-15 惠州雷士光电科技有限公司 Ventilation and refrigeration equipment and refrigeration airflow control method

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Publication number Priority date Publication date Assignee Title
CN2444165Y (en) * 2000-08-15 2001-08-22 顾建军 Bathing warmer
CN1715797A (en) * 2005-04-04 2006-01-04 顾建军 Air exchanger
CN200952820Y (en) * 2006-09-11 2007-09-26 上海龙胜实业有限公司 Air-blowing and ventilating automatic switching device used for bathroom heating device
CN102865624A (en) * 2011-07-04 2013-01-09 陈平亮 Air conditioner indoor unit with bidirectional double-side air inlet omnibearing air outlet and bidirectional air outlet function
CN204345772U (en) * 2014-12-17 2015-05-20 杭州品悦电器有限公司 With the suspended ceiling heater of new wind function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2444165Y (en) * 2000-08-15 2001-08-22 顾建军 Bathing warmer
CN1715797A (en) * 2005-04-04 2006-01-04 顾建军 Air exchanger
CN200952820Y (en) * 2006-09-11 2007-09-26 上海龙胜实业有限公司 Air-blowing and ventilating automatic switching device used for bathroom heating device
CN102865624A (en) * 2011-07-04 2013-01-09 陈平亮 Air conditioner indoor unit with bidirectional double-side air inlet omnibearing air outlet and bidirectional air outlet function
CN204345772U (en) * 2014-12-17 2015-05-20 杭州品悦电器有限公司 With the suspended ceiling heater of new wind function

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106642434A (en) * 2017-01-20 2017-05-10 杭州奥普卫厨科技有限公司 Purification device capable of switching fresh air function and air exchange function
CN106677461A (en) * 2017-03-02 2017-05-17 嘉兴市品鼎电器有限公司 Integrated ceiling
CN107192081A (en) * 2017-07-24 2017-09-22 北京碧水源膜科技有限公司 A kind of fresh air-changing device and fully-automatic intelligent air regenerating device
CN107883424A (en) * 2017-11-17 2018-04-06 浙江奥华电气有限公司 A kind of multifunctional heater for being aerated ventilation
CN108036455A (en) * 2017-12-04 2018-05-15 佛山市川东磁电股份有限公司 A kind of room air monitors ventilation unit
CN110785614A (en) * 2018-03-05 2020-02-11 首尔伟傲世有限公司 air conditioner
CN108386950B (en) * 2018-05-02 2023-12-22 皓庭(唐山)环境科技有限公司 Cabinet type fresh air fan convenient to install
CN108386950A (en) * 2018-05-02 2018-08-10 皓庭(唐山)环境科技有限公司 The cabinet type new wind turbine of civilian dress type
CN108826628A (en) * 2018-07-25 2018-11-16 上海龙胜实业有限公司 A kind of air duct mechanism in Domestic ventilation machine
CN109386964A (en) * 2018-11-09 2019-02-26 上海龙胜实业有限公司 A kind of new airing radiator
CN109386964B (en) * 2018-11-09 2024-03-19 上海龙胜实业有限公司 Fresh air heating device
CN110145833A (en) * 2019-04-09 2019-08-20 惠州市祥兴机械设备有限公司 Between a kind of box-type list Fan Equipment
CN110848864A (en) * 2019-12-10 2020-02-28 常州机电职业技术学院 Compact new trend system wind cabinet
CN111623418A (en) * 2020-06-30 2020-09-04 广东美的制冷设备有限公司 Fresh air module and air conditioner indoor unit
CN113883597A (en) * 2020-07-01 2022-01-04 广东美的制冷设备有限公司 Air conditioner
CN116592437A (en) * 2023-05-29 2023-08-15 惠州雷士光电科技有限公司 Ventilation and refrigeration equipment and refrigeration airflow control method

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