Ventilation and exhaust device for air conditioner

Abstract

The application discloses a kind of air conditioner electrical installation ventilation exhaust device, belong to air conditioning field, including shell, the front side of the shell is fixedly connected with fin for refrigerant heat exchange, the inside of the shell is fixedly connected with mounting plate, the inside of the mounting plate is fixedly connected with bidirectional motor. By controlling fan in starting 30 seconds counterclockwise rotation, make fan wind power blow to fin direction, can blow out the dust and other substances attached to the surface of fin, effectively prevent when fan clockwise rotation, fan rotation produces suction force to fin, the dust and other substances attached to the surface of fin are stuck in fin between, cause to clean fin too troublesome, and every time opening air conditioner can clean fin, make cleaning more convenient, effectively prevent needing professional personnel to take down shell from outdoor and clean, and effectively prevent dust and other substances from being attached to the surface of fin, cause poor air conditioner use experience.

Description

Technical Field

[0001] This invention relates to the field of air conditioning, and more specifically, to a ventilation and exhaust device for an air conditioning electromechanical installation. Background Technology

[0002] The outdoor unit of an air conditioner is the core power and heat dissipation component of the air conditioning system. Its core task is to discharge the heat absorbed indoors to the outside and drive the refrigerant cycle. Its working principle is based on the vapor compression refrigeration cycle, which mainly includes four key steps: compression, condensation and heat dissipation, throttling and pressure reduction (usually accomplished by an expansion valve, which may be completed in the indoor or outdoor unit), and evaporation (completed in the indoor unit).

[0003] Chinese patent CN115875757B discloses an outdoor unit and an air conditioner. The design utilizes a heat dissipation duct to increase airflow within the compressor cavity. The exhausted airflow flows directly into the gaps between adjacent fins for heat dissipation, ensuring proper cooling of the control box. Simultaneously, the airflow from the condenser is guided to the radiator by the manifold cap, improving its cooling performance. This design also addresses the internal cooling of the control box and the cooling of its heat-generating components, enhancing overall heat dissipation and preventing damage to the control box and components due to overheating, thus ensuring the normal operation of the entire unit.

[0004] The above method can increase the airflow in the cavity where the compressor is located through the heat dissipation duct. The exhaust airflow flows directly into the gap between adjacent fins for heat dissipation, ensuring heat dissipation inside the electrical control box. However, when the fan rotates, dust will enter the fins and reach the gaps between the fins, making it difficult to clean the fins. Workers need to go to a high place to remove the outdoor unit of the air conditioner and carry it indoors for cleaning, which is a cumbersome process. Summary of the Invention

[0005] To address the problems existing in the prior art, the purpose of this invention is to provide a ventilation and exhaust device for air conditioning electromechanical installation. By controlling the fan to rotate counterclockwise 30 seconds after startup, the fan generates airflow that blows towards the fins, effectively blowing out dust and other substances adhering to the fin surface. This effectively prevents the suction force generated by the fan rotation on the fins when rotating clockwise, which would trap dust and other substances between the fins, making fin cleaning too troublesome. Furthermore, the fins can be cleaned every time the air conditioner is turned on, making cleaning more convenient and effectively preventing the need for professionals to remove the outer casing from the outside for cleaning. It also effectively prevents dust and other substances from adhering to the fin surface, thus avoiding a poor air conditioning user experience.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A ventilation and exhaust device for an air conditioning unit includes a housing. Fins for refrigerant heat exchange are fixedly connected to the front side of the housing. A mounting plate is fixedly connected inside the housing. A bidirectional motor is fixedly connected inside the mounting plate. A fan for blowing hot air out of the housing is fixedly connected to the front output shaft end of the bidirectional motor. A PCL controller is fixedly connected to the front surface of the mounting plate. The PCL controller is electrically connected to the fan.

[0008] Furthermore, a baffle is fixedly connected inside the outer casing, and a cleaning and cooling mechanism is provided on the right side of the baffle. The cleaning and cooling mechanism includes a mounting component fixedly connected to the baffle, and a first rotating column that penetrates the mounting component is fixedly connected to the end of the front output shaft of the bidirectional motor.

[0009] Furthermore, a water spray component is fixedly connected to the front side of the mounting component, and a second rotating column that penetrates the mounting component is rotatably connected to the rear side of the water spray component. A gear is fixedly connected to the surface of the first rotating column, and a tooth groove is opened on the second rotating column at the position corresponding to the gear.

[0010] Furthermore, the second rotating column has a right-angled trapezoidal cross-section at the water spray component, and an extrusion column is slidably connected inside the water spray component. A first spring, which is welded to the second extension block, is also provided inside the water spray component.

[0011] Furthermore, the top of the water spray component is provided with a guide component that is fixedly connected to the baffle, and the left side of the guide component is provided with a water inlet hole that is connected to the condenser pipe.

[0012] Furthermore, the inside of the flow guide is provided with a cavity for condensing water, and a float is slidably connected inside the flow guide, with a connecting rope connected to the bottom of the float.

[0013] Furthermore, the end of the connecting rope away from the float is provided with a rotating plate that is rotatably connected to the receiving cavity. The connection point between the connecting rope and the rotating plate is on the rear side of the center of the rotating plate. A connecting hole is provided inside the water spray component corresponding to the position of the rotating plate.

[0014] Furthermore, a guide plate is fixedly connected to the bottom of the outer shell. The surface of the guide plate has multiple longitudinal grooves with an arc cross-section. The surface of the guide plate has multiple equidistant transverse grooves. Both ends of the longitudinal groove at the foremost side have through holes.

[0015] Furthermore, the surface of the first rotating column extends in the direction of the mounting component to form a first extension block, and the bottom of the mounting component is provided with an impact mechanism, which includes a movable plate slidably connected to the surface of the mounting component.

[0016] Furthermore, the top of the movable plate extends toward the mounting component to form a driving block. The mounting component has a rotating groove inside to accommodate the rotation of the first extension block. A rubber block is fixedly connected to the driving block near the baffle. A third extension block is fixedly connected to the top of the movable plate. A second spring is provided inside the mounting component and welded to the third extension block.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. This solution controls the fan to rotate counterclockwise for 30 seconds after startup, causing the fan to blow air towards the fins. This blows out dust and other substances adhering to the fin surface, effectively preventing the suction effect created by the fan rotation when rotating clockwise from trapping dust and other substances between the fins, making fin cleaning too troublesome. Furthermore, the initial fan rotation blowing air towards the fins does not affect the operation of the indoor air conditioner. After the air conditioner is turned off, the fan rotates counterclockwise again for 30 seconds to blow out any dust that reached the fin surface during use. This prevents dust from adhering to the fin surface for a long time, making it easier to clean the fin surface. The fins can be cleaned every time the air conditioner is turned on, making cleaning more convenient and effectively preventing the need for professional personnel to remove the outer casing from the outside for cleaning. It also effectively prevents dust and other substances from adhering to the fin surface, thus avoiding a poor user experience.

[0019] 2. In this design, when the second rotating column rotates, its inclined portion can compress the extrusion column. The extrusion column, compressed by the second rotating column, moves inside the water spray component. By injecting water into the water spray component, the extrusion column can compress the water. An atomizer is fixedly connected to the side of the water spray component near the fins. The compressed water reaches the atomizer and is atomized and discharged. The atomized water cleans the fin surface, resulting in better cleaning. Simultaneously, the fins are cooled, allowing the refrigerant inside to cool down faster, saving energy and improving the air conditioning's performance. Furthermore, the water spraying time is during air conditioning operation, when the fan's clockwise rotation makes fin cleaning difficult. This ensures the fins are constantly being cleaned during use, making cleaning easier and facilitating airflow from outside to the interior of the casing, resulting in better heat exchange.

[0020] 3. This solution ensures the float plate remains afloat on the surface of the condensate as the amount of condensate within the guide component increases. The float plate moves within a limiting groove, stabilizing its movement and preventing it from wobbling and failing to maintain its afloat position. A connecting rope is attached to the bottom of the float plate; as it floats upwards, it pulls on the rope. A rotating plate, rotatably connected to the receiving cavity, is located at the end of the rope furthest from the float plate. The rope's pull on the rotating plate causes it to rotate, facilitating easier rotation. The guide component and the spray component are connected via a connecting hole in the rotating plate, allowing condensate to accumulate in the guide component and flow into the spray component. This condensate is then sprayed out to cool and clean the fins, resulting in better cooling and cleaning. Furthermore, it allows outside air to pass through the fins and reach the interior of the shell, improving heat exchange.

[0021] 4. This solution guides the condensate in this section through longitudinal grooves. The cross-section of the longitudinal grooves is curved, which facilitates the guidance of condensate to both ends of the longitudinal grooves. Transverse grooves guide the condensate on both sides of the longitudinal grooves, allowing the condensate to reach the interior of the transverse grooves. The guide plate has a right-angled triangular cross-section, with the inclined surface pointing towards the fins, which facilitates the guidance of the condensate in the transverse grooves. This allows the condensate to flow along the transverse grooves to the front of the guide plate, resulting in better condensate collection. Finally, the condensate reaches the interior of the frontmost longitudinal groove, and then enters the through holes on both sides of the longitudinal grooves. These through holes are connected to the outside, facilitating the final discharge of the condensate from the outer shell. This improves the condensate discharge effect and effectively prevents condensate from remaining inside the outer shell. Furthermore, the dust washed down by the condensate will also be discharged through the through holes along with the condensate, further improving the removal of cleaned dust.

[0022] 5. This solution uses a moving plate carrying a rubber block to impact a baffle, causing the baffle to vibrate. This vibration is transmitted to the fins, causing them to vibrate and easily dislodging dust from their surfaces. This effectively cleans multi-layered heat-conducting fins and can clean various types of fins, resulting in better cleaning. During the movement of the moving plate, the third extension block compresses the second spring, causing it to change from a naturally extended state to a taut state. This allows the moving plate to repeatedly impact the baffle with the rubber block, further enhancing the cleaning effect on the fins. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the exhaust device of the present invention;

[0024] Figure 2 This is an internal side view of the exhaust device of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the exhaust device of the present invention;

[0026] Figure 4 This is a schematic diagram of the cooling mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the flow guide of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the water spray component of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the second rotating column and gear of the present invention;

[0030] Figure 8 This is a schematic diagram of the impact mechanism of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the guide plate of the present invention.

[0032] Explanation of the labels in the diagram:

[0033] 1. Outer shell; 11. Fins; 12. Baffle; 13. Fan; 14. Bidirectional motor; 141. First rotating column; 142. Gear; 143. First extension block; 15. Mounting plate; 16. PCL controller; 2. Cleaning and cooling mechanism; 21. Flow guide; 211. Water inlet; 212. Receiving cavity; 213. Float; 214. Limiting groove; 215. Connecting rope; 216. Rotating plate; 22. Mounting component; 2 21. Rotating groove; 23. Water spray component; 231. Atomizer; 232. Second rotating column; 233. First spring; 234. Second extension block; 235. Connecting hole; 236. Extrusion column; 237. Toothed groove; 3. Guide plate; 31. Longitudinal groove; 32. Transverse groove; 33. Through hole; 4. Impact mechanism; 41. Moving plate; 42. Third extension block; 43. Second spring; 44. Rubber block; 45. Drive block. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1 to 9A ventilation and exhaust device for an air conditioning unit includes a housing 1. Fins 11 for refrigerant heat exchange are fixedly connected to the front of the housing 1. A mounting plate 15 is fixedly connected inside the housing 1. A bidirectional motor 14 is fixedly connected inside the mounting plate 15. A fan 13 for blowing hot air out of the housing 1 is fixedly connected to the front output shaft end of the bidirectional motor 14. A PCL controller 16 is fixedly connected to the front surface of the mounting plate 15. The PCL controller 16 is electrically connected to the fan 13. The fan 13 is controlled to rotate by the PCL controller 16. By controlling the fan 13 to rotate counterclockwise 30 seconds after startup, the fan 13 generates airflow that blows towards the fins 11, effectively blowing out dust and other substances adhering to the surface of the fins 11. This effectively prevents the fan 13 from damaging the fins when rotating clockwise. The suction generated by fin 11 traps dust and other substances adhering to the outer surface of fin 11 between fins 11, making cleaning fins 11 too troublesome. In the early stage, the rotation of fan 13 blowing air towards fins 11 will not affect the use of indoor air conditioning. After the air conditioner is turned off, the fan 13 is controlled to rotate counterclockwise again 30 seconds after being turned off, which blows the dust that has reached the surface of fins 11 during use out of the fins 11 surface again, avoiding dust adhering to the surface of fins 11 for a long time, making it difficult to blow the dust off fins 11. Cleaning dust on the surface of fins 11 is more convenient, and fins 11 can be cleaned every time the air conditioner is turned on, making cleaning more convenient. It effectively prevents the need for professional personnel to remove the outer casing 1 from the outside for cleaning, and effectively prevents dust and other substances from adhering to the surface of fins 11, resulting in a poor air conditioning user experience.

[0036] like Figures 1 to 9As shown, a baffle 12 is fixedly connected inside the outer casing 1. A cleaning and cooling mechanism 2 is provided on the right side of the baffle 12. The cleaning and cooling mechanism 2 includes a mounting component 22 fixedly connected to the baffle 12. A first rotating column 141 is fixedly connected to the end of the front output shaft of the bidirectional motor 14, passing through the mounting component 22. The first rotating column 141 is driven to rotate by the rotation of the front output shaft driven by the bidirectional motor 14. A water spray component 23 is fixedly connected to the front side of the mounting component 22. A second rotating column 232 is rotatably connected to the rear side of the water spray component 23, passing through the mounting component 22. A gear 142 is fixedly connected to the surface of the first rotating column 141 by the rotation of the first rotating column 141. The rotation of the first rotating column 141 controls the rotation of the gear 142, making the rotation of the gear 142 more convenient. The second rotating column 232 has a toothed groove 237 at the position corresponding to the gear 142. Rotation of the gear 142 drives the toothed groove 237 to rotate, causing the toothed groove 237 to rotate along with the second rotating column 232, making rotation of the second rotating column 232 more convenient. The cross-section of the second rotating column 232 within the water spray component 23 is a right-angled trapezoid. Rotation of the external portion of the second rotating column 232 within the water spray component 23 controls the rotation of the second rotating column 232 inside the water spray component 23. A squeezing column 236 is slidably connected inside the water spray component 23. When the second rotating column 232 rotates, its inclined portion squeezes the squeezing column 236. The squeezing column 236 moves inside the water spray component 23 due to the squeezing action of the second rotating column 232. Water is injected into the interior of component 23, causing the extrusion column 236 to compress the water. An atomizer 231 is fixedly connected to the side of the water spray component 23 near the fin 11. The compressed water reaches the atomizer 231 and is atomized and discharged. The atomized water cleans the surface of the fin 11, resulting in a better cleaning effect. Simultaneously, the cleaning process cools the fin 11, causing the refrigerant inside to cool down more quickly, saving energy and improving the air conditioning's performance. The surface of the extrusion column 236 extends towards the inner wall of the water spray component 23 to form a second extension block 234. The second extension block 234 moves within the inner wall of the water spray component 23, restricting the movement of the extrusion column 236 and making its movement more precise. For convenience, the water spray component 23 has a first spring 233 welded to the second extension block 234. As the extrusion column 236 moves, carrying the second extension block 234, the second extension block 234 compresses the first spring 233, causing it to change from a naturally extended state to a taut state. This allows the extrusion column 236 to return to its original position under the action of the first spring 233, facilitating repeated movement of the extrusion column 236. This achieves the repeated cleaning and cooling effect on the fins 11. Furthermore, the water spraying time is when the air conditioner is in use, as the clockwise rotation of the fan 13 makes it difficult to clean the fins 11. By spraying water, the fins 11 are constantly being cleaned during use.This design makes cleaning the fins 11 easier and allows outside air to pass through the fins 11 into the interior of the outer casing 1 more readily, resulting in better heat exchange with the fins 11.

[0037] like Figures 1 to 9 As shown, the top of the water spray component 23 is provided with a guide component 21 fixedly connected to the baffle 12. The condenser pipe inside the outer casing 1 passes through the baffle 12 to reach the guide component 21. A water inlet hole 211 connected to the condenser pipe is opened on the left side of the guide component 21, facilitating the flow of condensate through the condenser pipe into the interior of the guide component 21 during air conditioning operation. An accommodating cavity 212 for condensate is opened inside the guide component 21. A float 213 is slidably connected inside the guide component 21. Depending on the amount of condensate in the guide component 21, the float 213 always floats on the surface of the condensate. A limiting groove 214 is opened on the inner wall of the guide component 21 to accommodate the slidably connected float 213. The float 213 moves within the limiting groove 214, making its movement more stable and preventing it from swaying and failing to float on the surface of the condensate. A connecting rope 215 is connected to the bottom of the float 213. When floating, the float plate 213 pulls on the connecting rope 215. A rotating plate 216, rotatably connected to the receiving cavity 212, is located at the end of the connecting rope 215 furthest from the float plate 213. The connecting rope 215, pulled by the float plate 213, pulls on the rotating plate 216. The connection point between the connecting rope 215 and the rotating plate 216 is behind the center of the rotating plate 216, facilitating rotation of the rotating plate 216 after being pulled, making rotation easier. The interior of the water spray component 23 rotates accordingly. A connection hole 235 is provided at the position of plate 216. The guide member 21 and the water spray member 23 are connected through the circular hole of the rotating plate 216 and the connection hole 235, so that the condensate in the guide member 21 can be stored to a certain extent and then flow into the interior of the water spray member 23. The water spray member 23 sprays out condensate to cool and clean the fins 11, which has a better cooling and cleaning effect on the fins 11 and makes it easier for outside air to reach the interior of the outer shell 1 through the fins 11, thus improving the heat exchange effect of the fins 11.

[0038] like Figures 1 to 9As shown, a guide plate 3 is fixedly connected to the bottom of the outer casing 1. Multiple longitudinal grooves 31 are formed on the surface of the guide plate 3. Some of the condensate sprayed from the water sprayer 23 remains inside the outer casing 1. This condensate reaches the top of the guide plate 3. Because the guide plate 3 has longitudinal grooves 31 inside, it guides this portion of the condensate. The cross-section of the longitudinal grooves 31 is curved, facilitating the guidance of the condensate to both ends of the longitudinal grooves 31, making the condensate guidance more convenient. Multiple equidistant transverse grooves 32 are formed on the surface of the guide plate 3. These transverse grooves 32 guide the condensate on both sides of the longitudinal grooves 31, allowing the condensate to reach the interior of the transverse grooves 32. The cross-section of the guide plate 3 is... The right-angled triangle, with its inclined surface pointing towards the fin 11, facilitates the guidance of condensate in the transverse groove 32, allowing the condensate to reach the front of the guide plate 3 along the transverse groove 32, resulting in better condensate collection. Both ends of the front longitudinal groove 31 are provided with through holes 33. Finally, the condensate reaches the interior of the front longitudinal groove 31 and enters the through holes 33 on both sides of the longitudinal groove 31. The through holes 33 are connected to the outside, facilitating the final discharge of the condensate from the outer shell 1 to the outside, resulting in better condensate discharge and effectively preventing condensate from remaining inside the outer shell 1. Furthermore, the dust washed down by the condensate will also be discharged along the condensate through the through holes 33, resulting in better dust removal.

[0039] like Figures 1 to 9As shown, the surface of the first rotating column 141 extends towards the mounting member 22 to form a first extension block 143. Rotation of the first rotating column 141 controls the rotation of the first extension block 143 within the mounting member 22, making rotation of the first extension block 143 more convenient. An impact mechanism 4 is provided at the bottom of the mounting member 22. The impact mechanism 4 includes a moving plate 41 slidably connected to the surface of the mounting member 22. The top of the moving plate 41 extends towards the mounting member 22 to form a driving block 45. During the rotation of the first extension block 143, the driving block 45 is pressed, causing it to move. The driving block 45, along with the moving plate 41, moves towards the baffle 12. A rotating groove 221 is provided inside the mounting member 22 to accommodate the rotation of the first extension block 143, making rotation of the first extension block 143 within the rotating groove 221 more convenient. A rubber block 44 is fixedly connected near the baffle 12. The moving plate 41 carries the rubber block 44 to impact the baffle 12, causing the baffle 12 to vibrate. This vibration is transmitted to the fins 11, causing the fins 11 to vibrate and easily shake off dust from their surface. This effectively cleans the multi-layered heat-conducting fins 11, and can clean different types of fins 11 with better cleaning results. A third extension block 42 is fixedly connected to the top of the moving plate 41. A second spring 43, welded to the third extension block 42, is installed inside the mounting component 22. During the movement of the moving plate 41, the third extension block 42 compresses the second spring 43, causing the second spring 43 to change from a naturally extended state to a taut state. This allows the moving plate 41 to repeatedly impact the baffle 12 with the rubber block 44, resulting in better cleaning of the fins 11.

[0040] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A ventilation and exhaust device for an air conditioning electromechanical installation, comprising a housing (1), characterized in that: The front side of the outer shell (1) is fixedly connected to a fin (11) for refrigerant heat exchange. The inside of the outer shell (1) is fixedly connected to a mounting plate (15). The inside of the mounting plate (15) is fixedly connected to a bidirectional motor (14). The front output shaft end of the bidirectional motor (14) is fixedly connected to a fan (13) for blowing hot air out of the outer shell (1). The front surface of the mounting plate (15) is fixedly connected to a PCL controller (16). The PCL controller (16) is electrically connected to the fan (13). A baffle (12) is fixedly connected inside the outer shell (1). A cleaning and cooling mechanism (2) is provided on the right side of the baffle (12). The cleaning and cooling mechanism (2) includes a mounting component (22) fixedly connected to the baffle (12). A first rotating column (141) that penetrates the mounting component (22) is fixedly connected to the end of the front output shaft of the bidirectional motor (14). The front side of the mounting component (22) is fixedly connected to a water spray component (23), and the rear side of the water spray component (23) is rotatably connected to a second rotating column (232) that penetrates the mounting component (22). A gear (142) is fixedly connected to the surface of the first rotating column (141), and a tooth groove (237) is opened on the second rotating column (232) corresponding to the position of the gear (142). The second rotating column (232) has a right-angled trapezoidal cross section in the water spray component (23). The water spray component (23) is slidably connected to an extrusion column (236). The water spray component (23) is provided with a first spring (233) welded to the second extension block (234). The top of the water spray component (23) is provided with a guide component (21) that is fixedly connected to the baffle (12), and the left side of the guide component (21) is provided with a water inlet hole (211) that is connected to the condenser pipe. The guide (21) has an internal cavity (212) for condensing water, and a float (213) is slidably connected inside the guide (21). A connecting rope (215) is connected to the bottom of the float (213). The end of the connecting rope (215) away from the float (213) is provided with a rotating plate (216) that is rotatably connected to the receiving cavity (212). The connection point between the connecting rope (215) and the rotating plate (216) is on the rear side of the center of the rotating plate (216). The interior of the water spray component (23) is provided with a connecting hole (235) corresponding to the position of the rotating plate (216).

2. The ventilation and exhaust device for an air conditioning electromechanical installation according to claim 1, characterized in that: The bottom of the outer shell (1) is fixedly connected to a guide plate (3). The surface of the guide plate (3) is provided with multiple longitudinal grooves (31). The cross-section of the longitudinal grooves (31) is an arc surface. The surface of the guide plate (3) is provided with multiple horizontal grooves (32) distributed at equal intervals. Both ends of the longitudinal groove (31) at the frontmost side are provided with through holes (33).

3. The ventilation and exhaust device for an air conditioning electromechanical installation according to claim 2, characterized in that: The surface of the first rotating column (141) extends in the direction of the mounting part (22) to form a first extension block (143). The bottom of the mounting part (22) is provided with an impact mechanism (4). The impact mechanism (4) includes a movable plate (41) that is slidably connected to the surface of the mounting part (22).

4. The ventilation and exhaust device for an air conditioning electromechanical installation according to claim 3, characterized in that: The top of the movable plate (41) extends toward the mounting member (22) to form a driving block (45). The mounting member (22) has a rotating groove (221) inside to accommodate the rotation of the first extension block (143). A rubber block (44) is fixedly connected to the driving block (45) in the direction close to the baffle (12). A third extension block (42) is fixedly connected to the top of the movable plate (41). A second spring (43) is provided inside the mounting member (22) and welded to the third extension block (42).

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