CN215113002U - Integrated indoor environment comprehensive regulation and control system - Google Patents
Integrated indoor environment comprehensive regulation and control system Download PDFInfo
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- CN215113002U CN215113002U CN202120979445.4U CN202120979445U CN215113002U CN 215113002 U CN215113002 U CN 215113002U CN 202120979445 U CN202120979445 U CN 202120979445U CN 215113002 U CN215113002 U CN 215113002U
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Abstract
The utility model discloses an integrated indoor environment comprehensive regulation and control system, which comprises an outdoor fresh air system, an indoor exhaust system, an indoor air feeding and returning system and a heat pump system; the outdoor fresh air system comprises an outdoor fresh air inlet, a total heat exchanger and an indoor fresh air fan, wherein the outdoor fresh air inlet, the total heat exchanger and the indoor fresh air fan form an air flow path from the outdoor to the indoor; the indoor exhaust system comprises an indoor exhaust outlet, a total heat exchanger, an outdoor exhaust fan and an outdoor exhaust outlet, wherein the indoor exhaust outlet, the total heat exchanger, the outdoor exhaust fan and the outdoor exhaust outlet form an air flow path from indoor to outdoor; the heat pump system comprises an outdoor unit and an indoor finned heat exchanger, wherein the outdoor unit is located outdoors, and the indoor finned heat exchanger is located indoors; the indoor air supply and return system comprises an indoor environment air return opening, an indoor environment circulating fan and an indoor air supply opening. The system can effectively improve the indoor living environment.
Description
Technical Field
The utility model relates to an indoor environment regulation and control system, especially integrated indoor environment comprehensive regulation and control system.
Background
With the rapid development of economy and the gradual improvement of living standard of people, the requirements of people on living environment are higher and higher, and a passive ultra-low energy consumption building provides a comfortable indoor environment by adopting a new heat recovery technology and utilizing renewable energy through an enclosure structure with higher heat preservation and heat insulation performance and air tightness performance. Problems of indoor cooling and heating, indoor noise, air quality, etc. have become important factors affecting indoor environments.
The existing indoor environment regulation and control system, especially in cold areas, has low energy efficiency of a fresh air handling unit with refrigeration and heat supply, and cannot fully utilize energy. Therefore, whether the product is produced at present in China or imported equipment at abroad, the requirement for developing passive ultra-low energy consumption buildings is difficult to meet according to the current economic situation and market requirements of China.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an effectual integrated indoor environment of regulation and control synthesizes regulation and control system.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: the system comprises an outdoor fresh air system, an indoor exhaust system, an indoor air supply and return system and a heat pump system; the outdoor fresh air system comprises an outdoor fresh air inlet, a total heat exchanger and an indoor fresh air fan, wherein the outdoor fresh air inlet, the total heat exchanger and the indoor fresh air fan form an air flow path from the outdoor to the indoor; the indoor exhaust system comprises an indoor exhaust outlet, a total heat exchanger, an outdoor exhaust fan and an outdoor exhaust outlet, wherein the indoor exhaust outlet, the total heat exchanger, the outdoor exhaust fan and the outdoor exhaust outlet form an air flow path from indoor to outdoor; the heat pump system comprises an outdoor unit and an indoor finned heat exchanger, wherein the outdoor unit is located outdoors, and the indoor finned heat exchanger is located indoors; the indoor air return system comprises an indoor environment air return opening, an indoor environment circulating fan and an indoor air supply opening, and the indoor environment air return opening, the indoor environment circulating fan, the indoor finned heat exchanger and the indoor air supply opening form an indoor air loop.
Two imports of the total heat exchanger are both provided with filtering devices.
All be equipped with the environment room between outdoor new trend entry and the total heat exchanger, between total heat exchanger and the export of indoor new fan, between indoor air exit and the total heat exchanger, between total heat exchanger and the outdoor air exit.
The utility model is provided with environmental chambers between the indoor environment air return opening and the indoor environment circulating fan, and between the indoor environment circulating fan and the indoor air supply opening; the indoor finned heat exchanger is positioned in an environmental chamber between the indoor environmental circulating fan and the indoor air supply outlet. And a filtering device is arranged in the environment chamber between the indoor environment air return opening and the indoor environment circulating fan.
Be equipped with air quality detector between indoor environment return air inlet and the indoor environment circulating fan.
The outdoor unit of the utility model comprises a compressor, a finned heat exchanger, an axial flow fan and a four-way reversing valve; the four interfaces of the four-way reversing valve are respectively communicated with an exhaust port of the compressor, a first interface of the finned heat exchanger, an air suction port of the compressor and a first interface of the indoor finned heat exchanger; the second interface of the indoor finned heat exchanger is communicated with the second interface of the finned heat exchanger; the axial flow fan and the finned heat exchanger are correspondingly arranged. An economizer, a refrigerant filter and a main-circuit electronic expansion valve are communicated between the second interface of the indoor finned heat exchanger and the second interface of the finned heat exchanger; the economizer is provided with four interfaces, wherein two interfaces are respectively communicated with a second interface of the indoor finned heat exchanger and an air-supplying enthalpy-increasing port of the compressor; the other two interfaces are respectively communicated with the second interface of the finned heat exchanger through branches, and one branch is provided with an electromagnetic valve and an auxiliary electronic expansion valve.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the indoor air supply and return system and the heat pump system can effectively refrigerate and heat indoors, and can effectively realize indoor air exchange through the outdoor fresh air system and the indoor exhaust system; the full heat exchanger can realize indoor ventilation and simultaneously recover energy, and can effectively avoid frosting or icing on the exhaust side of the exhaust system in a low-temperature environment. The utility model discloses not only can refrigerate in summer, heat in winter, can guarantee equipment normal operating under the low temperature environment moreover. The indoor air conditioner has the characteristics of good integration, simple structure, high energy utilization rate, reliable operation, energy conservation, environmental protection and the like, and can effectively improve the indoor living environment.
The utility model can also detect CO through the air quality detector2Concentration and PM2.5 concentration according to CO2Starting and stopping the equipment according to the concentration and PM2.5 concentration; can more effectively improve the indoor living environment.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: a compressor 1; a first refrigerant filter 2; an economizer 3; an auxiliary electronic expansion valve 4; a second refrigerant filter 5; an electromagnetic valve 6; a main-path electronic expansion valve 7; a third refrigerant filter 8; a finned heat exchanger 9; an axial flow fan 10; a four-way reversing valve 11; an indoor air outlet 12; a first electric blast gate 13; a first filter device 14; the total heat exchanger 15; a second filter device 16; an outdoor fresh air inlet 17; a second electric blast gate 18; an outdoor air outlet 19; an outdoor ventilator 20; a third filter device 21; an indoor environment return air inlet 22; a third electric blast gate 23; an indoor fin heat exchanger 24; an indoor air supply outlet 25; a first indoor-environment circulation fan 26; a second indoor-environment circulation fan 27; an indoor fresh air machine 28; the fourth refrigerant filter 29; a low pressure protection device 30; a high-pressure protection device 31; the first cut-off valve 32; a second stop valve 33; an outdoor unit 001; an indoor unit 002; a first environmental chamber 003; a second environmental chamber 004; a third environmental chamber 005; a fourth environmental chamber 006; a fifth environmental chamber 007; a sixth environmental chamber 008; air quality detection device A.
Detailed Description
As shown in fig. 1, the integrated indoor environment comprehensive regulation and control system includes an outdoor fresh air system, an indoor exhaust system, an indoor air supply and return system and a heat pump system; an outdoor unit 001 installed outdoors and an indoor unit 002 installed indoors are classified according to installation positions; the outdoor fresh air system, the indoor exhaust system and the indoor air supply and return system are located indoors and belong to an indoor unit 002; the indoor finned heat exchanger 24 of the heat pump system is located indoors and belongs to an indoor unit 002, and the rest of the heat pump system is located outdoors and belongs to an outdoor unit 001.
As shown in fig. 1, the integrated indoor environment comprehensive control system includes an outdoor fresh air inlet 17, a second electric air valve 18, a third environment chamber 005, a second filtering device 16, a total heat exchanger 15, a fourth environment chamber 006 and an indoor fresh air blower 28. An air inlet of the outdoor fresh air inlet 17 is communicated with the outdoor environment, an air outlet of the outdoor fresh air inlet 17 is communicated with the third environment chamber 005, and the second electric air valve 18 is arranged at an air outlet of the outdoor fresh air inlet 17; said third ambient chamber 005 communicates with an inlet of the total heat exchanger 15, at which said second filtering means 16 is located, of the total heat exchanger 15; one outlet of the total heat exchanger 15 is communicated with the fourth environmental chamber 006, and the fourth environmental chamber 006 is communicated with the air inlet of the indoor fresh air fan 28; the air outlet of the indoor fresh air fan 28 is communicated with the indoor environment. Thus, the second electric damper 18, the third environmental chamber 005, the second filter device 16, the total heat exchanger 15, the fourth environmental chamber 006, and the indoor fresh air blower 28 form an air flow path from the outside to the inside, and fresh air from the outside can be sucked into the inside.
As shown in fig. 1, the integrated indoor environment comprehensive regulation and control system includes an indoor air outlet 12, a first electric air valve 13, a first environment chamber 003, a first filtering device 14, a total heat exchanger 15, a second environment chamber 004, an outdoor air outlet 20 and an outdoor air outlet 19; the indoor exhaust system and the outdoor fresh air system adopt the same total heat exchanger 15. The air inlet of the indoor air outlet 12 is communicated with the indoor environment, the air outlet is communicated with the first environment chamber 003, and the first electric air valve 13 is arranged at the air outlet of the indoor air outlet 12; the first environment chamber 003 is communicated with the other inlet of the total heat exchanger 15, and the first filtering device 14 is positioned at the inlet of the total heat exchanger 15; the other outlet of the total heat exchanger 15 is communicated with a second environment chamber 004, and the second environment chamber 004 is communicated with the air inlet of the outdoor exhaust fan 20; the air outlet of the outdoor exhaust fan 20 is communicated with the air inlet of the outdoor exhaust outlet 19, and the air outlet of the outdoor exhaust outlet 19 is communicated with the outdoor environment. Thus, the indoor discharge port 12, the first electric damper 13, the first environment chamber 003, the first filter device 14, the total heat exchanger 15, the second environment chamber 004, the outdoor discharge fan 20, and the outdoor discharge port 19 form an air flow path from the indoor to the outdoor, and indoor air can be discharged to the indoor. Fresh air of the indoor exhaust system and indoor air of the outdoor fresh air system flow through the total heat exchanger 15 respectively, so that heat exchange is realized in the flowing process, the fresh air entering the room is heated or cooled, energy is effectively utilized, and the temperature of the indoor air is prevented from changing greatly.
As shown in fig. 1, in the integrated indoor environment comprehensive regulation and control system, the heat pump system includes an outdoor unit 001 and an indoor finned heat exchanger 24. The outdoor unit 001 includes a compressor 1, a first refrigerant filter 2, an economizer 3, an auxiliary electronic expansion valve 4, a second refrigerant filter 5, a solenoid valve 6, a main-path electronic expansion valve 7, a third refrigerant filter 8, a fin-type heat exchanger 9, an axial flow fan 10, a four-way reversing valve 11, a fourth refrigerant filter 29, a low-pressure protection device 30, a high-pressure protection device 31, a first shutoff valve 32, and a second shutoff valve 33. The four interfaces of the four-way reversing valve 11 are respectively a port C, a port D, a port E and a port S, wherein the port D is communicated with an exhaust port of the compressor 1, the port C is communicated with a first interface of the finned heat exchanger 9, the port S is communicated with an air suction port of the compressor 1, and the port E is communicated with a first interface of the indoor finned heat exchanger 24; high-pressure protection devices 31 are arranged on pipelines of a D port of the four-way reversing valve 11 and an exhaust port of the compressor 1, a fourth refrigerant filter 29 and a first stop valve 32 are arranged on pipelines of an E port of the four-way reversing valve 11 and a first interface of the indoor finned heat exchanger 24, and low-pressure protection devices 30 are arranged on pipelines of an S port of the four-way reversing valve 11 and an air suction port of the compressor 1. And the second port of the indoor finned heat exchanger 24 is communicated with the economizer 3 through a second stop valve 33 and the first refrigerant filter 2. The economizer 3 is provided with four ports, namely a port a, a port b, a port c and a port d; the port b is communicated with a second port of the indoor finned heat exchanger 24 through the first refrigerant filter 2 and the second stop valve 33, and the port a is communicated with an air-supplementing enthalpy-increasing port of the compressor 1; the port c and the port d are respectively communicated with a branch, wherein a second refrigerant filter 5 is arranged on the branch of the port c, and an auxiliary electronic expansion valve 4 and an electromagnetic valve 6 are arranged on the branch of the port d; the two branch circuits are converged, then sequentially pass through a main circuit electronic expansion valve 7 and a third refrigerant filter 8 and then are communicated with a second interface of the finned heat exchanger 9. The axial flow fan 10 is arranged in front of the finned heat exchanger 9, and the heat exchange effect of the finned heat exchanger 9 can be enhanced when the axial flow fan 10 operates.
Fig. 1 shows that this integrated indoor environment comprehensive control system, indoor air return system includes indoor environment return air inlet 22, third electronic blast gate 23, fifth environment room 007, third filter equipment 21, indoor environment circulating fan, sixth environment room 008 and indoor supply-air outlet 25. An air inlet of the indoor environment air return opening 22 is communicated with the indoor environment, an air outlet of the indoor environment air return opening 22 is communicated with the fifth environment chamber 007, and the third electric air valve 23 is arranged at the air outlet of the indoor environment air return opening 22; a third filtering device 21 is arranged in the fifth environmental chamber 007 and communicated with an air inlet of an indoor environmental circulating fan; the number of the indoor environment circulating fans is preferably two, namely a first indoor environment circulating fan 26 and a second indoor environment circulating fan 27, and the two indoor environment circulating fans can be simultaneously or singly started as required; an air quality detector A is arranged in a fifth environment chamber 007 between the indoor environment air return opening 22 and the first indoor environment circulating fan 26 and the second indoor environment circulating fan 27; the air outlet of the indoor environment circulating fan is over against the indoor finned heat exchanger 24 of the heat pump system and is communicated with the sixth environment chamber 008; the sixth environment chamber 008 is communicated with an air inlet of the indoor air supply outlet 25, and an air outlet of the indoor air supply outlet 25 is communicated with the indoor environment; the air inlet of the indoor environment air return opening 22 and the air outlet of the indoor air supply opening 25 are preferably communicated with two sides of the indoor environment respectively. Thus, the indoor environment air return opening 22, the third electric air valve 23, the fifth environment chamber 007, the third filter device 21, the indoor environment circulating fan, the indoor finned heat exchanger 24, the sixth environment chamber 008 and the indoor air supply opening 25 form an indoor air loop, and the indoor air is heated or cooled by the indoor finned heat exchanger 24 in the circulating process, so that the temperature of the indoor environment is adjusted.
The operation mode of the integrated indoor environment comprehensive regulation and control system comprises the following modes:
firstly, a refrigeration mode: firstly, the third electric air valve 23, the first indoor environment circulating fan 26 and the second indoor environment circulating fan 27 are started, and the outdoor unit 001 is started, namely the axial flow fan 10, the main path electronic expansion valve 7 and the compressor 1 are started in sequence; the indoor finned heat exchanger 24 serves as an evaporator to reduce the indoor temperature, thereby achieving the purpose of refrigeration. The air quality detector A can detect indoor CO as desired2When the concentration is higher, the first electric air valve 13, the second electric air valve 18, the indoor fresh air fan 28 of the outdoor fresh air system and the outdoor exhaust fan 20 of the indoor exhaust system are opened; and the outdoor fresh air system determines the fresh air volume of the fresh air system according to the ventilation times of the passive rooms. The outside fresh air and the indoor dirty air are subjected to heat and humidity exchange through the total heat exchanger 15, so that the temperature of the discharged dirty air is increased, the temperature of the fresh air is reduced, and the purpose of running and energy saving is achieved.
Secondly, heating mode: firstly, the third electric air valve 23, the first indoor environment circulating fan 26 and the second indoor environment circulating fan 27 are started, and the outdoor unit 001 is started, namely the axial flow fan 10, the main path electronic expansion valve 7 and the compressor 1 are started in sequence; the indoor finned heat exchanger 24 serves as a condenser, so that the temperature in the passive room is increased, and the heating purpose is achieved. The air quality detector A can detect indoor CO as desired2When the concentration is higher, the first electric wind is startedThe valve 13, the second electric air valve 18, the indoor fresh air fan 28 of the outdoor fresh air system and the outdoor exhaust fan 20 of the indoor exhaust system, wherein the outdoor fresh air system determines the fresh air volume of the fresh air system according to the ventilation times of the passive room. The outside fresh air and the indoor dirty air are subjected to heat and humidity exchange through the total heat exchanger 15, so that the temperature of the discharged dirty air is reduced, the temperature of the fresh air is increased, and the purpose of running and energy saving is achieved.
There are two heating modes of the outdoor unit 001, which are specifically as follows:
1. heating mode 1: when the external environment temperature is higher than a certain set value, the electromagnetic valve 6 is not opened, and the flow path of the refrigerant is as follows: the air outlet of the compressor 1, the interface D of the four-way reversing valve 11, the interface E of the four-way reversing valve 11, the fourth refrigerant filter 29, the first stop valve 32, the indoor finned heat exchanger 24, the second stop valve 33, the first refrigerant filter 2, the interface b of the economizer 3, the interface C of the economizer 3, the second refrigerant filter 5, the main-path electronic expansion valve 7, the third refrigerant filter 8, the finned heat exchanger 9, the interface C of the four-way reversing valve 11, the interface S of the four-way reversing valve 11 and the air suction port of the compressor 1.
2. Heating mode 2: when the external environment temperature is lower than a certain set value, the electromagnetic valve 6 is opened, and an auxiliary path is added in the refrigerant circulation path of the heating mode 1: the refrigerant also flows through the solenoid valve 6, the auxiliary electronic expansion valve 4, the interface d of the economizer 3, the interface a of the economizer 3 and the vapor supplementing and enthalpy increasing port of the compressor 1.
Thirdly, transition seasons: during the transition season, when the ambient temperature and the passive room temperature fluctuate very little, the outdoor unit 001 is not turned on, and only the indoor unit 002 is turned on. And opening the second electric air valve 18, the first electric air valve 13, the third electric air valve 23, the first indoor environment circulating fan 26, the second indoor environment circulating fan 27, the outdoor exhaust fan 20 and the indoor fresh air fan 28. The outdoor fresh air system determines the fresh air volume of the fresh air system according to the indoor ventilation times of the building environment.
When the environment temperature is lower than the indoor temperature value, the outside fresh air and the indoor dirty air are subjected to heat and humidity exchange through the total heat exchanger 15, so that the temperature of the discharged dirty air is reduced, the temperature of the fresh air is increased, and the purpose of energy-saving operation is achieved.
When the environment temperature is higher than the indoor temperature value, the outside fresh air and the indoor dirty air are subjected to heat and humidity exchange through the total heat exchanger 15, so that the temperature of the discharged dirty air is increased, the temperature of the fresh air is reduced, and the purpose of energy-saving operation is achieved.
Claims (8)
1. The utility model provides an integration indoor environment synthesizes regulation and control system which characterized in that: the system comprises an outdoor fresh air system, an indoor exhaust system, an indoor air supply and return system and a heat pump system; the outdoor fresh air system comprises an outdoor fresh air inlet (17), a total heat exchanger (15) and an indoor fresh air fan (28), wherein the outdoor fresh air inlet (17), the total heat exchanger (15) and the indoor fresh air fan (28) form an air flow path from the outdoor to the indoor; the indoor exhaust system comprises an indoor exhaust outlet (12), a total heat exchanger (15), an outdoor exhaust fan (20) and an outdoor exhaust outlet (19), wherein the indoor exhaust outlet (12), the total heat exchanger (15), the outdoor exhaust fan (20) and the outdoor exhaust outlet (19) form an air flow path from indoor to outdoor; the heat pump system comprises an outdoor unit (001) and an indoor finned heat exchanger (24), wherein the outdoor unit (001) is located outdoors, and the indoor finned heat exchanger (24) is located indoors; the indoor air return system comprises an indoor environment air return opening (22), an indoor environment circulating fan and an indoor air supply opening (25), wherein the indoor environment air return opening (22), the indoor environment circulating fan, the indoor finned heat exchanger (24) and the indoor air supply opening (25) form an indoor air circulation loop.
2. The integrated indoor environment comprehensive regulation and control system of claim 1, wherein: and both inlets of the total heat exchanger (15) are provided with filtering devices.
3. The integrated indoor environment comprehensive regulation and control system of claim 1, wherein: and environment chambers are arranged between the outdoor fresh air inlet (17) and the total heat exchanger (15), between the total heat exchanger (15) and the outlet of the indoor fresh air fan (28), between the indoor air outlet (12) and the total heat exchanger (15) and between the total heat exchanger (15) and the outdoor air outlet (19).
4. The integrated indoor environment comprehensive regulation and control system of claim 1, wherein: an environment chamber is arranged between the indoor environment air return opening (22) and the indoor environment circulating fan, and an environment chamber is arranged between the indoor environment circulating fan and the indoor air supply opening (25); and the indoor finned heat exchanger (24) is positioned in an environmental chamber between the indoor environmental circulating fan and the indoor air supply outlet (25).
5. The integrated indoor environment comprehensive regulation and control system of claim 4, wherein: and a filtering device is arranged in the environment chamber between the indoor environment air return opening (22) and the indoor environment circulating fan.
6. The integrated indoor environment comprehensive regulation and control system of claim 1, wherein: and an air quality detector (A) is arranged between the indoor environment air return opening (22) and the indoor environment circulating fan.
7. The integrated indoor environment comprehensive regulation and control system of any one of claims 1 to 6, wherein: the outdoor unit comprises a compressor (1), a finned heat exchanger (9), an axial flow fan (10) and a four-way reversing valve (11); the four interfaces of the four-way reversing valve (11) are respectively communicated with an exhaust port of the compressor (1), a first interface of the finned heat exchanger (9), an air suction port of the compressor (1) and a first interface of the indoor finned heat exchanger (24); the second interface of the indoor finned heat exchanger (24) is communicated with the second interface of the finned heat exchanger (9); the axial flow fan (10) and the finned heat exchanger (9) are arranged correspondingly.
8. The integrated indoor environment comprehensive regulation and control system of claim 7, wherein: an economizer (3), a refrigerant filter (8) and a main-path electronic expansion valve (7) are communicated between the second interface of the indoor finned heat exchanger (24) and the second interface of the finned heat exchanger (9); the economizer (3) is provided with four interfaces, wherein two interfaces are respectively communicated with a second interface of the indoor finned heat exchanger (24) and an air-supplying enthalpy-increasing port of the compressor (1); the other two interfaces are respectively communicated with the second interface of the finned heat exchanger (9) through branches, and one branch is provided with an electromagnetic valve (6) and an auxiliary electronic expansion valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120979445.4U CN215113002U (en) | 2021-05-10 | 2021-05-10 | Integrated indoor environment comprehensive regulation and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120979445.4U CN215113002U (en) | 2021-05-10 | 2021-05-10 | Integrated indoor environment comprehensive regulation and control system |
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| Publication Number | Publication Date |
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| CN215113002U true CN215113002U (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120979445.4U Active CN215113002U (en) | 2021-05-10 | 2021-05-10 | Integrated indoor environment comprehensive regulation and control system |
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| CN (1) | CN215113002U (en) |
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- 2021-05-10 CN CN202120979445.4U patent/CN215113002U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HEBEI ORIENT SUNDAR WINDOW Co.,Ltd. Assignor: Hebei Green Building Technology Co.,Ltd. Contract record no.: X2022980028581 Denomination of utility model: Integrated indoor environment comprehensive control system Granted publication date: 20211210 License type: Common License Record date: 20230112 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: GAOBEIDIAN SHUNDA MOSER WINDOW & DOOR Co.,Ltd. Assignor: Hebei Green Building Technology Co.,Ltd. Contract record no.: X2023980037902 Denomination of utility model: Integrated indoor environment comprehensive control system Granted publication date: 20211210 License type: Common License Record date: 20230711 |
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| EE01 | Entry into force of recordation of patent licensing contract |