Low-noise negative-pressure ventilation air conditioner
By designing a low-noise, low-pressure air-conditioning unit, and using internal and external circulation valves and temperature sensors to control airflow, the problems of high noise and poor air circulation in the secondary air conditioning unit have been solved, achieving air purification and improved comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGZHOU BIAN ETIQUETTE SERVICE CO LTD
- Filing Date
- 2024-01-23
- Publication Date
- 2026-04-10
AI Technical Summary
Existing air conditioner auxiliary units are noisy, occupy indoor space, and cannot achieve indoor-outdoor air exchange, resulting in poor air circulation in enclosed or dusty places, affecting comfort and potentially generating odors, bacteria, and dust.
Design a low-noise, low-pressure air-conditioning unit, comprising an air conditioning main unit and a secondary unit connected by a refrigerant connection pipe, equipped with a circulating air duct and an exhaust air duct, and featuring an internal circulation air valve, an external circulation air valve, and an anti-backflow air valve. A controller is used to control the fan to achieve internal and external circulation and negative pressure exhaust, and a temperature sensor and filter are used for air purification.
It effectively reduces noise, saves indoor space, achieves temperature regulation and air circulation, reduces odors and germs, and improves comfort and air flow in enclosed or dusty places.
Smart Images
Figure CN121828809A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the air conditioning technical field, specifically to a low-noise negative pressure ventilation air conditioner. BACKGROUND
[0002] The existing air conditioner usually is placed in the indoor of the building, occupies the indoor space and has loud noise. And the existing air conditioner indoor unit has only one pipeline, cannot carry out the ventilation of indoor and outdoor air while carrying out the refrigeration or heating of the indoor, causes the poor air circulation, the comfort of the user in the indoor is poor. Especially for some closed, high dust space or workshop, if the air circulation is not timely, it is easy to produce peculiar smell, bacteria, virus and dust, affects the health of the relevant personnel. SUMMARY
[0003] The present application relates to the air conditioning technical field, specifically to a low-noise negative pressure ventilation air conditioner.
[0004] A low-noise negative pressure ventilation air conditioner, comprising an air conditioner main machine and an air conditioner unit, the air conditioner main machine and the air conditioner unit are communicated through a refrigerant connecting pipe, the air conditioner unit is provided with a unit air inlet and a unit air outlet, the unit air inlet is communicated with a circulating air pipe, the circulating air pipe is provided with an exhaust pipe line communicated therewith, the end of the air inlet pipe line is provided with an exhaust hood, the unit air outlet is communicated with an air inlet pipe line, the air inlet pipe line penetrates the side wall of the exhaust pipe line and is arranged in the exhaust pipe line, the end of the air inlet pipe line is provided with an air inlet hood after penetrating the exhaust hood, the combination part of the circulating air pipe and the exhaust pipe line is provided with a circulating control device, temperature sensors are arranged in the air inlet pipe line and the exhaust hood, a controller is arranged on the air inlet hood, and the controller is electrically connected with the air conditioner main machine, the air conditioner unit, the temperature sensors and the circulating control device.
[0005] Further, the circulating control device comprises an inner circulating air valve, an outer circulating air valve and an anti-back air valve, the anti-back air valve is arranged on the circulating air pipe, the inner circulating air valve is arranged on the circulating air pipe close to the unit air inlet side of the combination part of the circulating air pipe and the exhaust pipe line, the outer circulating air valve is arranged on the circulating air pipe away from the unit air inlet side of the combination part of the circulating air pipe and the exhaust pipe line, the inner circulating air valve, the outer circulating air valve and the anti-back air valve are electrically connected with the controller, an air inlet filter screen is arranged on the end of the circulating air pipe away from the unit air inlet, a bidirectional fan is arranged between the air inlet filter screen and the outer circulating air valve, and the bidirectional fan is electrically connected with the controller.
[0006] Further, the air conditioner main machine comprises a main machine outer shell, a main machine radiator, a main machine heat dissipation air fan and a compressor are sequentially arranged in the main machine outer shell, one end of the refrigerant connecting pipe is communicated with the main machine radiator and the compressor, and the compressor is electrically connected with the controller.
[0007] Further, the air conditioner sub-machine includes a sub-machine outer shell, an evaporative box radiator is arranged in the sub-machine outer shell, an evaporative box fan is arranged in the evaporative box radiator, the other end of the refrigerant connecting pipe is connected with the inside of the evaporative box radiator, a sub-machine air inlet and a sub-machine air outlet are arranged on the evaporative box radiator, and the evaporative box fan is electrically connected with the controller.
[0008] Further, the air inlet cover is provided with a wind direction adjusting grille.
[0009] Further, the air outlet cover is provided with an air outlet filter screen.
[0010] In summary, the present application has the following advantages:
[0011] The present application solves the problem that air conditioners cannot be used in closed or high-dust places or cannot be used for ventilation when used in closed or high-dust places. The present application does not have an indoor unit, which can fully save indoor space and reduce operating noise. The present application can adjust the temperature of places such as vehicle spaces or workshops where odors or dust are prone to occur, while achieving ventilation and generating negative pressure, effectively improving the comfort and air flow of the place, reducing odor formation, and preventing the spread of bacteria and viruses. BRIEF DESCRIPTION OF DRAWINGS
[0012] The present application will be further described in detail below in combination with the drawings and specific embodiments:
[0013] Figure 1 The present application is a structure diagram of a low-noise negative pressure ventilation air conditioner.
[0014] In the figure: 1 main machine outer shell, 2 main machine radiator, 3 main machine radiator air fan, 4 compressor, 5 refrigerant connecting pipe, 6 sub-machine air inlet, 7 evaporative box fan, 8 evaporative box radiator, 9 sub-machine outer shell, 10 sub-machine air outlet, 11 circulating air pipe, 12 controller, 13 air inlet cover, 14 wind direction adjusting grille, 15 air outlet cover, 16 air outlet filter screen, 17 temperature sensor, 18 air outlet pipeline, 19 air inlet pipeline, 20 internal circulating air valve, 21 external circulating air valve, 22 air inlet filter screen, 23 two-way air fan, 24 anti-back air valve, 25 wall. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0016] The following will be described in combination with the drawingsFigure 1 The application is further described as follows:
[0017] The low-noise negative pressure ventilation air conditioner comprises an air conditioner main machine and an air conditioner auxiliary machine, the air conditioner main machine and the air conditioner auxiliary machine are communicated through a refrigerant connecting pipe 5, the air conditioner main machine comprises a main machine shell body 1, a main machine radiator 2, a main machine heat dissipation air fan 3 and a compressor 4 are sequentially arranged in the main machine shell body, one end of the refrigerant connecting pipe 5 is communicated with the main machine radiator 2 and the compressor 4, the compressor 4 is electrically connected with a controller 12, the air conditioner auxiliary machine comprises an auxiliary machine shell body 9, an evaporative box radiator 8 is arranged in the auxiliary machine shell body 9, an evaporative box fan 7 is arranged in the evaporative box radiator 8, the other end of the refrigerant connecting pipe 5 is communicated with the inside of the evaporative box radiator 8, and the evaporative box fan 7 is electrically connected with the controller 12.
[0018] The evaporative box radiator 8 is provided with an auxiliary machine air inlet 6 and an auxiliary machine air outlet 10, the auxiliary machine air inlet 6 is communicated with a circulating air pipe 11, the circulating air pipe 11 is provided with an exhaust air pipe 18 communicated therewith, the exhaust air pipe 18 is provided with an exhaust air cover 15 at the end of an air inlet pipe 19, the exhaust air cover 15 is provided with an exhaust air filter screen 16, the auxiliary machine air outlet 10 is communicated with the air inlet pipe 19, the air inlet pipe 19 penetrates the side wall of the exhaust air pipe 18 and is arranged in the inside of the exhaust air pipe 18, the air inlet pipe 19 is provided with an air inlet cover 13 after penetrating the exhaust air cover 15, and the air inlet cover 13 is provided with a wind direction adjusting grille 14.
[0019] In the embodiment, preferably, the air conditioner main machine and the air conditioner auxiliary machine are arranged outside the building, and the noise generated by the air conditioner main machine and the air conditioner auxiliary machine has less influence on the indoor environment. The air inlet pipe 19 penetrates the wall 25 of the building and is fixedly connected with the wall 25. The air inlet pipe 19 is sealingly arranged at the joint of the side wall of the exhaust air pipe 18, the air inlet cover 13 and the exhaust air cover 15 are arranged in the indoor environment of the building, and the wind direction adjusting grille 14 is used for guiding the cold air or the hot air.
[0020] In the embodiment, the main machine shell body 1 is provided with the main machine radiator 2, the main machine heat dissipation air fan 3 and the compressor 4, the main machine radiator 2 and the compressor 4 are communicated through the refrigerant connecting pipe 5, and the refrigerant connecting pipe 5 is also communicated with the inside of the evaporative box radiator 8, so that the refrigeration and heating of the air conditioner are realized. When the compressor 4 works, the backflow heat is discharged from the main machine radiator 2 and is discharged from the main machine shell body 1 by the main machine heat dissipation air fan 3 to be radiated. When the compressor 4 and the evaporative box fan 7 are started by the controller 12, the refrigerant formed by the compressor 4 enters the evaporative box radiator 8 through the refrigerant connecting pipe 5, the evaporative box fan 7 blows the cold air or the hot air in the evaporative box radiator 8 out of the air inlet cover 13 through the air inlet pipe 19, and the wind direction adjusting grille 14 adjusts the wind direction, so that the indoor environment is cooled or heated.
[0021] Temperature sensors 17 are installed in both the air inlet duct 19 and the exhaust hood 15. A controller 12 is installed on the air inlet hood 13. The controller 12 is electrically connected to the air conditioning unit, the air conditioning sub-unit, the temperature sensors 17 and the circulation control device.
[0022] In this embodiment, when cooling or heating, the temperature sensor 17 in the air inlet duct 19 and the exhaust hood 15 will sense the cooling and heating temperature and the indoor temperature, and control the start and stop of the compressor 4 and the evaporator fan 7 according to the preset temperature.
[0023] A circulation control device is provided at the junction of the circulating air duct 11 and the exhaust air duct 18. The circulation control device includes an internal circulation valve 20, an external circulation valve 21, and an anti-backdraft valve 24. The anti-backdraft valve 24 is provided on the circulating air duct 11. An internal circulation valve 20 is provided on the circulating air duct 11 near the auxiliary unit air inlet 6 at the junction of the circulating air duct 11 and the exhaust air duct 18. An external circulation valve 21 is provided on the circulating air duct 11 away from the auxiliary unit air inlet 6 at the junction of the circulating air duct 11 and the exhaust air duct 18. The internal circulation valve 20, the external circulation valve 21, and the anti-backdraft valve 24 are all electrically connected to the controller 12. An air inlet filter 22 is provided at the end of the circulating air duct 11 away from the auxiliary unit air inlet 6. A bidirectional fan 23 is provided between the air inlet filter 22 and the external circulation valve 21. The bidirectional fan 23 is electrically connected to the controller 12.
[0024] To achieve optimal cooling or heating performance, the air inlet duct 19 passes through the side wall of the exhaust duct 18 and is installed inside the exhaust duct 18, forming a shell-and-tube heat exchanger for heat circulation. The controller 12 controls the opening of the internal circulation valve 20 and the anti-backdraft valve 24, while closing the external circulation valve 21. At this time, indoor air enters the evaporator radiator 8 through the auxiliary unit air inlet 6 via the exhaust duct 18, and is then blown out of the air inlet hood 13 by the evaporator fan 7 through the air inlet duct 19, forming an internal circulation. The exhaust filter 16 is used to filter and purify the internally circulated indoor air.
[0025] To maintain fresh indoor air, when the external circulation mode needs to be activated, the controller 12 controls the opening of the internal circulation valve 20 and the external circulation valve 21, and the closing of the anti-backflow valve 24. The controller 12 also controls the bidirectional fan 23 to start and supply air inward. At this time, under the action of the bidirectional fan 23, the outside air enters the evaporator radiator 8 through the air inlet 6 of the air conditioner auxiliary unit, and is then blown out of the air inlet hood 13 through the air inlet pipe 19 by the evaporator fan 7, forming an external circulation. At this time, the air inlet filter 22 filters and purifies the outside air.
[0026] When it is necessary to exhaust air to the outside, the controller 12 controls the internal circulation valve 20 to close and the external circulation valve 21 and the anti-backdraft valve 24 to open. The controller 12 controls the bidirectional fan 23 to start and be in the state of exhausting air to the outside. At this time, the indoor polluted air is discharged through the exhaust pipe 18, and a negative pressure state is formed in the room, which accelerates the air circulation.
[0027] When it is necessary to supply air to the room, the controller 12 controls the inner circulation valve 20 to close, the outer circulation valve 21 and the anti-backdraft valve 24 to open, and the controller 12 controls the bidirectional fan 23 to start and be in the state of supplying air to the room. At this time, outdoor air enters the room through the exhaust pipe 18.
[0028] In summary, this invention is not limited to the specific embodiments described above. Those skilled in the art can make various modifications and alterations without departing from the spirit and scope of this invention. The scope of protection of this invention should be determined by the claims of this invention.
[0029] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.
[0030] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.
Claims
1. A low-noise negative pressure ventilation air conditioner, characterized in that, The system includes an air conditioning main unit and an air conditioning auxiliary unit, which are connected by a refrigerant connection pipe (5). The air conditioning auxiliary unit has an air inlet (6) and an air outlet (10). The air inlet (6) is connected to a circulating air duct (11), and an exhaust duct (18) is connected to the circulating air duct (11). An exhaust hood (15) is installed at the end of the air inlet duct (19), and an air inlet duct (19) is connected to the air outlet (10). The air inlet duct (19) passes through the exhaust duct (18). 8) is located on the side wall and inside the exhaust duct (18). The end of the air inlet duct (19) passes through the exhaust hood (15) and is provided with an air inlet hood (13). A circulation control device is provided at the junction of the circulation duct (11) and the exhaust duct (18). Temperature sensors (17) are provided inside both the air inlet duct (19) and the exhaust hood (15). A controller (12) is provided on the air inlet hood (13). The controller (12) is electrically connected to the air conditioning unit, the air conditioning sub-unit, the temperature sensor (17) and the circulation control device.
2. The low-noise negative pressure ventilation air conditioner as described in claim 1, characterized in that, The circulation control device includes an internal circulation valve (20), an external circulation valve (21), and an anti-backdraft valve (24). An anti-backdraft valve (24) is installed on the circulation duct (11). An internal circulation valve (20) is installed on the circulation duct (11) near the auxiliary unit air inlet (6) at the junction of the circulation duct (11) and the exhaust duct (18). An internal circulation valve (20) is installed on the circulation duct (11) away from the auxiliary unit air inlet (6) at the junction of the circulation duct (11) and the exhaust duct (18). An external circulation valve (21) is provided on the circulating air duct (11). The internal circulation valve (20), the external circulation valve (21) and the anti-backflow valve (24) are all electrically connected to the controller (12). An air inlet filter (22) is provided at the end of the circulating air duct (11) away from the auxiliary air inlet (6). A bidirectional fan (23) is provided between the air inlet filter (22) and the external circulation valve (21). The bidirectional fan (23) is electrically connected to the controller (12).
3. A low-noise negative pressure ventilation air conditioner as described in claim 2, characterized in that, The air conditioning unit includes a main unit housing (1), and a main unit radiator (2), a main unit cooling fan (3) and a compressor (4) are arranged sequentially inside the main unit housing. One end of the refrigerant connection pipe (5) is connected to the main unit radiator (2) and the compressor (4), and the compressor (4) is electrically connected to the controller (12).
4. A low-noise negative pressure ventilation air conditioner as described in claim 3, characterized in that, The air conditioning unit includes a unit housing (9), an evaporator radiator (8) is installed inside the unit housing (9), an evaporator fan (7) is installed inside the evaporator radiator (8), the other end of the refrigerant connection pipe (5) is connected to the interior of the evaporator radiator (8), the evaporator radiator (8) is provided with a unit air inlet (6) and a unit air outlet (10), and the evaporator fan (7) is electrically connected to the controller (12).
5. A low-noise negative pressure ventilation air conditioner as described in claim 4, characterized in that, The air inlet hood (13) is provided with an air direction adjustment grille (14).
6. A low-noise negative pressure ventilation air conditioner as described in claim 5, characterized in that, An exhaust filter (16) is provided inside the exhaust hood (15).