Low noise and low energy consumption double compressor refrigeration system

Abstract

This invention relates to the field of air conditioning technology and discloses a low-noise, low-energy-consumption dual-compressor refrigeration system. It replaces a single high-power compressor with two low-power compressors, with the two low-power compressors having a higher capacity than a single high-power compressor. While maintaining the same power requirement, the system reduces its size and weight through a ring-shaped fixed weight-reduction method, further reducing compressor vibration and noise. Based on the actual low cooling / heating demand, the operating power of the two compressors is proportionally controlled to minimize energy consumption. Especially during battery thermal management, the low-power compressor provides power, further avoiding frequent compressor starts and reducing energy consumption during low-power operation, thus providing better energy efficiency for the entire vehicle. The evaporator is arranged on both sides of the condenser. With dual compressors, the air conditioning system is adjusted from a single circuit to two independent circuits, thus avoiding uneven refrigerant distribution and significant perceived temperature differences between the left and right sides.

Description

Technical Field

[0001] This invention relates to the field of air conditioning system technology, specifically to a low-noise, low-energy-consumption dual-compressor refrigeration system. Background Technology

[0002] Air conditioning systems are essential in cars. Traditional air conditioning systems use a single high-power compressor and evaporator combined with a condenser to achieve cooling, thus cooling the car during driving and managing battery thermally. However, traditional air conditioning systems still have problems that urgently need to be solved.

[0003] For example, due to space limitations in the vehicle, the air conditioner installation height and space are relatively small. Due to the high-power compressor, it is not possible to use a ring-shaped fixed shock absorption. Furthermore, during battery thermal management, the compressor starts frequently and consumes a lot of energy when operating at low power. Using a single compressor mode results in an uneven distribution of refrigerant between the left and right evaporators, and a significant difference in perceived temperature between the left and right sides. Summary of the Invention

[0004] This invention provides a low-noise, low-energy dual-compressor refrigeration system to solve the problems of high noise, high energy consumption, large space occupation, and significant temperature difference.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: In a first aspect, a low-noise, low-energy-consumption dual-compressor refrigeration system includes a composite cavity and a condenser. The condenser is provided with a protective cover, and a condensing fan and a through hole are provided inside the protective cover. A fixing frame is provided at one end of the condenser. The system also includes two side cavities provided on both sides of the condenser, with the condenser provided between the two side cavities and connected to the composite cavity. The dual refrigeration unit is disposed in a composite cavity and a side cavity. It includes a right evaporator and a left evaporator respectively disposed in the two side cavities, and a first compressor and a second compressor disposed in the composite cavity by a ring-shaped fixing component. The bottom wall of the side cavity is provided with a duct for air outlet, and the side of the two side cavities near the condenser is provided with an air outlet for air return. The output end of the first compressor is connected to the input end of the condenser. The output end of the condenser is connected to the input end of the right evaporator through a second electronic expansion valve. The output end of the right evaporator is connected to the input end of the first compressor to form right-side refrigeration. The output end of the second compressor is connected to the input end of the condenser. The output end of the condenser is connected to the input end of the left evaporator through a third electronic expansion valve. The output end of the left evaporator is connected to the input end of the second compressor to form left-side refrigeration. The fluff removal section is located above the protective cover and the condenser fan. It includes a swirling cleaning component that is rotated and moved horizontally above the through hole and is connected to the protective cover. It also includes a moving cleaning component that is located on the condenser fan and is connected to the swirling cleaning component, so as to remove the willow fluff impurities located on the protective cover and above the condenser fan.

[0006] Furthermore, the dual cooling assembly also includes: An evaporator fan is symmetrically fixed in the two side cavities; The air duct is connected to the evaporator fan.

[0007] Furthermore, the annular fixing component includes: The base plate support has two parts, which are symmetrically fixed to the bottom wall of the composite cavity; The shock-absorbing pads are connected to the base plate support via fixing components; The bracket is fixed on the shock-absorbing pad and is connected to the first compressor and the second compressor respectively.

[0008] Furthermore, the cleaning component includes: The card plate has two plates, which are symmetrically fixed on the protective cover and located on both sides of the condenser fan; Multi-stage electric rods are symmetrically fixed on the protective cover and located on the side of the plate away from the condenser fan; The L-plate is fixed to the telescopic end of the multi-stage electric pole and extends above the fixed end of the multi-stage electric pole. Support plate, connected to the end of L-plate; The rolling component rotates through the support plate and contacts the clamping plate; The rotary brush component is mounted on a rotating through-plate and is positioned on the through-hole.

[0009] Furthermore, the rolling component includes: The rotating column is installed through the support plate via a bearing and is located above the multi-stage electric pole; The disc is fixed to the outside of the rotating column; The arc plate is fixed to the lower end of the rotating column and is in close contact with the corner of the card plate; The belt has one end fitted onto the outside of the pulley.

[0010] Furthermore, the rotary brush component includes: The rotating shaft is installed by passing through the support plate via a bearing; The pulley is fixed to the outside of the shaft; The other end of the belt is fitted onto the outside of the pulley; Support plate, fixed at the lower end of the rotating shaft; The disc-shaped brush is fixed to the lower end of the support plate and is in contact with the protective cover.

[0011] Furthermore, the removal component includes: N plate, fixed on L plate, and located above the condenser fan; The nylon brush is slidably connected to the inner top wall of the N plate and contacts the upper end of the condenser fan; The joystick has one end eccentrically and rotatably connected to the rotating column, and the other end is rotatably connected to the nylon brush through a connecting component.

[0012] Furthermore, the swirl cleaning component is provided with a blowing section, which includes a blow storage component connected to the swirl cleaning component and a uniform blowing component that penetrates the swirl brush component. The blow storage component includes: The gas cylinder is mounted above the mounting frame and fixedly connected to the clamping plate. There are two solenoid valves, connected to both ends of the gas tank; One of the solenoid valves is a one-inlet, two-outlet type, and the other solenoid valve is a one-inlet, one-outlet type; The switch is fixed on the card plate so that it can be pressed by the N plate to control the solenoid valve; The blowing component is disposed between the two clamping plates.

[0013] Furthermore, the blowing component includes: A nozzle is disposed between the two clamping plates; The nozzle is angled and extends through the spray nozzle. A connecting pipe is fixed to one of the output ends of one of the solenoid valves and connected to the nozzle.

[0014] Furthermore, the uniform blowing component includes: The connector, with a rotating seal, is attached to the upper end of the rotating shaft; The hose is connected at one end to the other output end of the solenoid valve and at the other end to the connector. A through hole is provided, which passes through the rotating shaft and connects to the connector; The inner cavity is located inside the support plate; The outlet has multiple outlets, which are evenly spaced through the lower end of the support plate and are connected to the inner cavity.

[0015] The above-described solution of the present invention has at least the following beneficial effects: By replacing the traditional single high-power compressor with two low-power compressors, and with the two low-power compressors having a higher capacity than the single high-power compressor, the size and weight are reduced while maintaining the same power requirement. A ring-shaped fixed weight reduction method is used to further reduce compressor vibration and noise. Based on the actual low cooling or heating demand, the operating power of the two compressors is proportionally controlled to minimize energy consumption, thereby reducing energy consumption. Especially during battery thermal management, the low-power compressor provides power, which further avoids frequent compressor starts and reduces energy consumption during low-power operation, thus providing better energy efficiency for the whole vehicle. The whole vehicle has more energy available for driving, increasing driving range. The evaporator is arranged on both sides of the condenser. With dual compressors, the air conditioning system is adjusted from a single circuit to dual independent circuits, thereby avoiding significant temperature differences between the left and right sides caused by uneven refrigerant distribution. Attached Figure Description

[0016] Figure 1 An overall perspective view of the air conditioner provided in an embodiment of the present invention; Figure 2 A perspective view of the annular fixing component provided in an embodiment of the present invention; Figure 3 Provided for embodiments of the present invention Figure 1 Schematic diagram of the structure at point A in the diagram; Figure 4 A cross-sectional plan view of the rotating shaft and disc brush assembly provided in an embodiment of the present invention; Figure 5 A perspective view of the lint-removing section provided in an embodiment of the present invention; Figure 6 This is a cross-sectional plan view of the N-plate provided in an embodiment of the present invention; Figure 7 A perspective view of the combination of the card plate and the gas cylinder provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of an air conditioner and its piping system provided in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: In the diagram: 1. Composite cavity; 2. Condenser; 3. Side cavity; 4. First electronic expansion valve; 5. Battery thermal management; 6. Second electronic expansion valve; 7. Right evaporator; 8. Left evaporator; 9. Evaporator fan; 10. Air duct; 11. Air outlet; 12. Protective cover; 13. Through hole; 14. Condenser fan; 15. First compressor; 16. Second compressor; 17. Bracket; 18. Vibration damping pad; 19. Base plate bracket; 20. Clamping plate; 21. Multi-stage electric rod; 22. L-plate; 23. Support plate; 24. Rotating column; 25. Reel; 26. 27. Arc disc; 28. Shaft; 29. ​​Connector; 30. Pulley; 31. Belt; 32. Support plate; 33. Disc brush; 34. N plate; 35. Guide groove; 36. Slider; 37. Brush plate; 38. Nylon brush; 39. Connecting ring; 40. Rotating rod; 41. Rocker arm; 42. Fixed plate; 43. Solenoid valve; 44. Hose; 45. Fixing bracket; 46. Through hole; 47. Inner cavity; 48. Outlet; 49. Nozzle; 50. Switch; 51. Connecting pipe; 52. Air tank; 53. Fresh air controller; 54. Third electronic expansion valve. Detailed Implementation

[0018] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0019] like Figures 1 to 8 As shown, an embodiment of the present invention provides a low-noise, low-energy dual-compressor refrigeration system, including a composite cavity 1 and a condenser 2. A protective cover 12 is provided on the condenser 2, and a condenser fan 14 and a through hole 13 are provided through the interior of the protective cover 12. A fixing frame 44 is provided at one end of the condenser 2. The system also includes two side cavities 3 provided on both sides of the condenser 2, with the condenser 2 provided between the two side cavities 3, and the condenser 2 is connected to the composite cavity 1. The fluff removal section is located above the protective cover 12 and the condenser fan 14. It includes a swirling cleaning component that is rotated and translated above the through hole 13 and is connected to the protective cover 12. It also includes a moving cleaning component that is located on the condenser fan 14 and is connected to the swirling cleaning component, so as to remove the fluff impurities above the protective cover 12 and the condenser fan 14 on the condenser 2. The swirl cleaning component is provided with a blowing section, which includes a blow storage component connected to the swirl cleaning component and a uniform blowing component that penetrates the swirl brush component.

[0020] Specifically, a battery thermal management system 5 is installed in one of the side cavities 3. The input end of the battery thermal management system 5 is equipped with a first electronic expansion valve 4. The composite cavity 1 can provide stable support for the condenser 2. The operator can use the fixing component to fix the fixing bracket 44 and the composite cavity 1 to the roof of the vehicle. The condenser 2 can provide stable support for the cover 12. The cover 12 can provide protection for the condenser 2 and can stably support the condenser fan 14. The condenser fan 14 can drive air circulation to help the condenser 2 to perform heat exchange. The through hole 13 can provide air circulation channel to facilitate heat exchange in the condenser 2. The side cavity 3 can provide stable support for the right evaporator 7, the left evaporator 8, the evaporator fan 9 and the air duct 10 under the support of the composite cavity 1.

[0021] As a preferred embodiment of the present invention, a dual refrigeration assembly is disposed in a composite cavity 1 and a side cavity 3. It includes a right evaporator 7 and a left evaporator 8 respectively disposed in the two side cavities 3, and a first compressor 15 and a second compressor 16 disposed in the composite cavity 1 by means of an annular fixing component. A duct 10 for air outlet is provided through the bottom wall of the side cavity 3, and an air outlet 11 is provided through the side of the two side cavities 3 near the condenser 2 for air return. The output end of the first compressor 15 is connected to the input end of the condenser 2. The output end of the condenser 2 is connected to the input end of the right evaporator 7 through the second electronic expansion valve 6. The output end of the right evaporator 7 is connected to the input end of the first compressor 15 to form right-side refrigeration. The output end of the second compressor 16 is connected to the input end of the condenser 2. The output end of the condenser 2 is connected to the input end of the left evaporator 8 through the third electronic expansion valve 54. The output end of the left evaporator 8 is connected to the input end of the second compressor 16 to form left-side refrigeration.

[0022] Specifically, the composite cavity 1 can provide stable support for the first compressor 15 and the second compressor 16 through the annular fixing component. The evaporator fan 9 can blow air into the vehicle through the air duct 10, while the air inside the vehicle will enter the location of the condenser 2 through the air vent 11 opened on the side cavity 3 for return air, so that the condenser 2 can perform heat exchange treatment on the return air. The air duct 10 and air vent 11 set on both sides of the two side cavities 3 and the condenser 2 realize dual cooling or heating. The heating includes components such as cooling components and four-way valve.

[0023] The dual cooling system also includes: Evaporator fan 9 is symmetrically fixed in the two side cavities 3; The air duct 10 is connected to the evaporator fan 9.

[0024] Specifically, the side cavity 3 can provide stable support for the evaporator fan 9, the evaporator fan 9 can provide support for the air duct 10, and the air duct 10 can provide a passage for the air after heat exchange to enter the vehicle.

[0025] The annular fixing component includes: Two base plate supports 19 are symmetrically fixed to the bottom wall of the composite cavity 1. The shock-absorbing pad 18 is connected to the base plate bracket 19 by a fixing component; The bracket 17 is fixed on the shock-absorbing pad 18 and is connected to the first compressor 15 and the second compressor 16 respectively.

[0026] Specifically, the composite cavity 1 provides stable support for the base plate support 19, the base plate support 19 provides support for the shock-absorbing pad 18, the shock-absorbing pad 18 is elastic and can play a role in damping and shock absorption, and can provide stable support for the support 17. The center of the base plate support 19 is recessed downward to make room for the first compressor 15 or the second compressor 16. The support 17 provides stable support for the first compressor 15 or the second compressor 16. A fresh air controller 53 is provided on the inner wall of one of the side cavities 3.

[0027] In practical application, the evaporator fan 9 needs to be started when cooling or heating, so that the evaporator fan 9 can draw the air in the whole vehicle through the air ducts 10 set on both sides of the condenser 2, and then exchange heat through the right evaporator 7 and the left evaporator 8. Fresh air is provided through the fresh air controller 53, and the air after heat exchange is sent back into the vehicle through the air outlet 11 for return air. The composite cavity 1 and the side cavity 3 have a rotationally symmetrical structure. The condenser 2 is a shared component of the left evaporator 8 and the right evaporator 7. The right evaporator 7 and the left evaporator 8 are arranged symmetrically with respect to the condenser 2, and the product achieves a double return air and double air outlet effect. The left and right evaporators 7 each form an independent system loop. Each loop is equipped with an independent first compressor 15 and a second compressor 16, forming two independent cooling or heating systems. One of the cooling system loops is equipped with a battery thermal management 5. By using the base plate bracket 19, the installation height of the first compressor 15 and the second compressor 16 is reduced while ensuring fixation. At the same time, the shock-absorbing pads 18 and the bracket 17 provide shock absorption for the first compressor 15 and the second compressor 16, thereby reducing noise. As a result, the air conditioner has the advantages of low noise, low energy consumption, low wind noise, and small space occupation.

[0028] In a preferred embodiment of the present invention, the cleaning component includes: Two clamping plates 20 are symmetrically fixed on the protective cover 12 and located on both sides of the condenser fan 14; The multi-stage electric rod 21 is symmetrically fixed on the cover 12 and is located on the side of the clamping plate 20 away from the condenser fan 14; L-plate 22 is fixed to the telescopic end of the multi-stage electric pole 21 and extends above the fixed end of the multi-stage electric pole 21. Support plate 23 is connected to the end of L plate 22; The rolling component is rotatably mounted through the support plate 23 and contacts the clamping plate 20; The rotary brush component is mounted on the rotating through support plate 23 and is located on the through hole 13.

[0029] Specifically, the protective cover 12 can provide stable support for the clamping plate 20, and the clamping plate 20 can reinforce the protective cover 12 so that the protective cover 12 can provide stable support for the condenser fan 14. The protective cover 12 can cooperate with the clamping plate 20 to provide stable support for the multi-stage electric rod 21. The multi-stage electric rod 21 can extend to four times its own length under the operation of the operator, and can use the telescopic end to provide support for the L plate 22. The L plate 22 can provide stable support for the support plate 23.

[0030] The rolling components include: The rotating column 24 is installed through the support plate 23 via a bearing and is located above the multi-stage electric rod 21; The disc 25 is fixed to the outside of the rotating column 24; Arc plate 26 is fixed to the lower end of rotating column 24 and is in contact with the corner of clamping plate 20; The belt 30 is fitted at one end onto the outside of the belt reel 25.

[0031] Specifically, the support plate 23 can provide rotational support for the rotating column 24 through the bearing. The rotating column 24 can rotate around the bearing on its outer side under the action of external force. The rotating column 24 can provide support for the belt disc 25 and the arc disc 26 under the support of the support plate 23. The belt disc 25 can provide support for the belt 30. The clamping plate 20 can provide rolling guidance and rolling friction for the arc disc 26.

[0032] The rotary brush components include: The rotating shaft 27 is installed through the support plate 23 via a bearing; Pulley 29 is fixed to the outside of shaft 27; The other end of the belt 30 is fitted onto the outside of the pulley 29; Support plate 31 is fixed to the lower end of rotating shaft 27; The disc-shaped brush 32 is fixed to the lower end of the support plate 31 and is in contact with the protective cover 12.

[0033] Specifically, the rotating shaft 27 can rotate around the bearing on its outer side under the support of the support plate 23, and can provide support for the pulley 29. The pulley 29 can provide support for the belt 30, so that the belt 30 can make the pulley 25 and the pulley 29 rotate synchronously under the action of rotational power. The rotating shaft 27 can stably support the support plate 31, and the support plate 31 can provide support for the disc brush 32.

[0034] The cleanup items include: N plate 33 is fixed on L plate 22 and located above condenser fan 14; Nylon brush 37 is slidably connected to the inner top wall of N plate 33 and in contact with the upper end of condenser fan 14; The rocker arm 40 is eccentrically and rotatably connected to the rotating column 24 at one end, and rotatably connected to the nylon brush 37 at the other end through a connecting component.

[0035] Specifically, the inner top wall of the N plate 33 is provided with a guide groove 34, and a slider 35 is slidably arranged in the guide groove 34. The lower end of the slider 35 is connected to a brush plate 36, and the brush plate 36 is connected to a nylon brush 37. The disc brush 32 and the nylon brush 37 are made of nylon, which can generate static electricity when rubbed and use static electricity to adsorb impurities such as lint. The N plate 33 can be supported by the L plate 22. A rotating rod 39 is eccentrically fixed on the rotating column 24. The rotating rod 39 is rotatably connected to one end of the rocker arm 40, and the other end of the rocker arm 40 is connected to a connecting ring 38, which is connected to the brush plate 36.

[0036] In practical application, the operator can control the extension of the multi-stage electric rod 21 according to actual needs. The multi-stage electric rod 21, using its telescopic end, pushes the L-plate 22 to move away from the fixed end of the multi-stage electric rod 21 above the protective cover 12. The L-plate 22, through the support plate 23, drives the rotating column 24 and the rotating shaft 27 to move together. The rotating column 24 then drives the belt disc 25 and the arc disc 26 to move together, while the rotating shaft 27 drives the support disc 31 and the disc-shaped brush 32 to move together. During this movement, the arc disc 26 utilizes its contact with the clamping plate 20... Friction causes the disc 26 to roll along the clamping plate 20, allowing the arc disc 26 to engage with the clamping plate 20 during movement. This causes the rotating column 24 to rotate under the support of the support plate 23, which in turn causes the belt disc 25 to rotate. The belt disc 25 then uses the belt 30 to drive the pulley 29 to rotate, which in turn uses the rotational power to drive the rotating shaft 27 to rotate under the support of the support plate 23. The rotating shaft 27 then drives the support plate 31, which in turn drives the disc brush 32 to rotate. This allows the disc brush 32 to use the rotational power to... During the translation process, impurities and lint on the protective cover 12 and the through hole 13 are brushed and cleaned. Static electricity is generated during the brushing process, which is used to attract lint and impurities. During the translation process, the L plate 22 will drive the slider 35, brush plate 36 and nylon brush 37 to translate together through the N plate 33. During the rotation of the rotating column 24, one end of the rocker arm 40 will revolve around the rotating column 24 as the center through the rotating rod 39. During the revolution, one end of the rocker arm 40 will rotate around the rotating rod 39 as the center. At the same time, the other end of the rocker arm 40 will be supported by the brush plate 36. The lever oscillates around the connecting ring 38, allowing the rocker arm 40 to push the brush plate 36 via the connecting ring 38 at the other end during rotation. This causes the brush plate 36 to drive the slider 35 to reciprocate along the guide groove 34. Simultaneously, the brush plate 36 drives the nylon brush 37 to move together. During the reciprocating motion and the movement along with the telescopic end of the multi-stage electric rod 21, the nylon brush 37 can clean the willow catkins and impurities on the upper end (protective net) of the condenser fan 14. Static electricity is generated during the friction process, and the willow catkins and impurities are adsorbed by the static electricity.

[0037] In a preferred embodiment of the present invention, the air storage component includes: Gas cylinder 52 is mounted above the mounting bracket 44 and is fixedly connected to the clamping plate 20; There are two solenoid valves 42, which are connected to both ends of the gas tank 52; One of the solenoid valves 42 is a one-inlet, two-outlet type, and the other solenoid valve 42 is a one-inlet, one-outlet type; Switch 50 is fixed on the card plate 20 so that it can be pressed by N plate 33 to control solenoid valve 42; The blown parts are positioned between two clamping plates 20.

[0038] Specifically, a fixed plate 41 is fixed below the card plate 20, and the fixed plate 41 is fixedly connected to the gas tank 52 to stabilize and support the gas tank 52. The gas tank 52 can provide storage space for high-pressure gas. The solenoid valve 42 can open or close the output channel of the gas tank 52 under the control of the switch 50, and can provide support for the connecting pipe 51 and the hose 43, so that the gas in the gas tank 52 can enter the hose 43 and the connecting pipe 51. After the switch 50 is squeezed and triggered, it will control the solenoid valve 42 to open the channel. When the squeezing force of the switch 50 is removed, it will automatically rebound and control the solenoid valve 42 to close the channel after rebounding.

[0039] The blown parts include: The nozzle 48 is positioned between the two clamping plates 20; Air nozzle 49, through nozzle 48 is set at an angle; Connecting pipe 51 is fixed to one of the output ends of one of the solenoid valves 42 and connected to nozzle 48.

[0040] Specifically, the connecting pipe 51 can provide stable support for the nozzle 48 with the support of the solenoid valve 42, the nozzle 48 can provide tilt support for the air nozzle 49, the connecting pipe 51 can provide a channel for gas to enter the nozzle 48, and the air nozzle 49 can tilt and spray the gas in the nozzle 48 out.

[0041] The uniform blowing components include: Connector 28 is rotatably sealed and connected to the upper end of rotating shaft 27; One end of the hose 43 is connected to the other output end of the solenoid valve 42, and the other end is connected to the connector 28. A through hole 45 is opened through the rotating shaft 27 and communicates with the connector 28; The inner cavity 46 is located inside the support plate 31; The outlet 47 has multiple outlets, which are evenly distributed through the lower end of the support plate 31 and are connected to the inner cavity 46.

[0042] Specifically, the rotating shaft 27 provides support for the connector 28. When the rotating shaft 27 rotates, it will maintain a seal on the outside of the connector 28. The connector 28 will be positioned by the hose 43. The hose 43 provides a channel for gas to enter the connector 28, and the connector 28 provides a channel for gas to enter the through hole 45. The through hole 45 provides a channel for gas to enter the inner cavity 46. Finally, the gas will be blown out through the outlet 47 onto the disc brush 32.

[0043] In practical application, when the multi-stage electric rod 21 extends to its full length, the nylon brush 37 moves to a position diagonally above and away from the air nozzle 49 and the air tank 52. Simultaneously, the disc brush 32 moves above the fixing frame 44. Meanwhile, the N plate 33, as the multi-stage electric rod 21 extends, contacts the switch 50 and, supported by the clamping plate 20, presses against the switch 50, causing the switch 50 to open the solenoid valve 42. This allows the high-pressure gas in the air tank 52 to pass through the connecting pipe 51 and the nozzle. 48 is ejected from the air nozzle 49, and at the same time, high-pressure gas enters the hose 43, enters the connector 28 through the hose 43, passes through the connector 28 and enters the through hole 45 and the inner cavity 46, and finally is ejected from the exhaust port 47. The high-pressure gas ejected from the exhaust port 47 and the air nozzle 49 blows away the catkins and impurities adsorbed on the nylon brush 37 and the disc brush 32. Thus, after cleaning the condenser fan 14 and the through hole 13, the impurities adhering to the nylon brush 37 and the disc brush 32 can be automatically cleaned, improving work efficiency.

[0044] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A low-noise, low-energy-consumption dual-compressor refrigeration system, comprising a composite cavity and a condenser, wherein a protective cover is provided on the condenser, a condensing fan and a through-hole are provided inside the protective cover, and a fixing frame is provided at one end of the condenser, characterized in that, It also includes two side cavities disposed on both sides of the condenser, with the condenser disposed between the two side cavities and connected to the composite cavity; A dual refrigeration assembly is disposed in the composite cavity and the side cavities. It includes a right evaporator and a left evaporator respectively disposed in the two side cavities, and a first compressor and a second compressor disposed in the composite cavity by means of an annular fixing component. The bottom wall of the side cavity is provided with a duct for air outlet, and the side of the two side cavities near the condenser is provided with an air outlet for air return. The output end of the first compressor is connected to the input end of the condenser. The output end of the condenser is connected to the input end of the right evaporator through a second electronic expansion valve. The output end of the right evaporator is connected to the input end of the first compressor to form right-side refrigeration. The output end of the second compressor is connected to the input end of the condenser. The output end of the condenser is connected to the input end of the left evaporator through a third electronic expansion valve. The output end of the left evaporator is connected to the input end of the second compressor to form left-side refrigeration. The fluff removal section is located above the protective cover and the condenser fan. It includes a swirling cleaning component that is rotated and moved horizontally above the through hole and is connected to the protective cover. It also includes a moving cleaning component that is located on the condenser fan and is connected to the swirling cleaning component, so as to remove the willow fluff impurities located on the protective cover and above the condenser fan.

2. The low-noise, low-energy-consumption dual-compressor refrigeration system according to claim 1, characterized in that, The dual cooling assembly also includes: An evaporator fan is symmetrically fixed in the two side cavities; The air duct is connected to the evaporator fan.

3. The low-noise, low-energy-consumption dual-compressor refrigeration system according to claim 2, characterized in that, The annular fixing component includes: The base plate support has two parts, which are symmetrically fixed to the bottom wall of the composite cavity; The shock-absorbing pads are connected to the base plate support via fixing components; The bracket is fixed on the shock-absorbing pad and is connected to the first compressor and the second compressor respectively.

4. The low-noise, low-energy-consumption dual-compressor refrigeration system according to claim 3, characterized in that, The cleaning component includes: The card plate has two plates, which are symmetrically fixed on the protective cover and located on both sides of the condenser fan; Multi-stage electric rods are symmetrically fixed on the protective cover and located on the side of the plate away from the condenser fan; The L-plate is fixed to the telescopic end of the multi-stage electric pole and extends above the fixed end of the multi-stage electric pole. Support plate, connected to the end of L-plate; The rolling component rotates through the support plate and contacts the clamping plate; The rotary brush component is mounted on a rotating through-plate and is positioned on the through-hole.

5. The low-noise, low-energy-consumption dual-compressor refrigeration system according to claim 4, characterized in that, The rolling component includes: The rotating column is installed through the support plate via a bearing and is located above the multi-stage electric pole; The disc is fixed to the outside of the rotating column; The arc plate is fixed to the lower end of the rotating column and is in close contact with the corner of the card plate; The belt has one end fitted onto the outside of the pulley.

6. The low-noise, low-energy-consumption dual-compressor refrigeration system according to claim 5, characterized in that, The rotary brush component includes: The rotating shaft is installed by passing through the support plate via a bearing; The pulley is fixed to the outside of the shaft; The other end of the belt is fitted onto the outside of the pulley; Support plate, fixed at the lower end of the rotating shaft; The disc-shaped brush is fixed to the lower end of the support plate and is in contact with the protective cover.

7. The low-noise, low-energy-consumption dual-compressor refrigeration system according to claim 6, characterized in that, The removal and cleaning component includes: N plate, fixed on L plate, and located above the condenser fan; The nylon brush is slidably connected to the inner top wall of the N plate and contacts the upper end of the condenser fan; The joystick has one end eccentrically and rotatably connected to the rotating column, and the other end is rotatably connected to the nylon brush through a connecting component.

8. The low-noise, low-energy-consumption dual-compressor refrigeration system according to claim 7, characterized in that, The swirl brush is provided with a blowing section, which includes a blow storage component connected to the swirl brush and a uniform blowing component that penetrates the swirl brush component. The blow storage component includes: The gas cylinder is mounted above the mounting frame and fixedly connected to the clamping plate. There are two solenoid valves, connected to both ends of the gas tank; One of the solenoid valves is a one-inlet, two-outlet type, and the other solenoid valve is a one-inlet, one-outlet type; The switch is fixed on the card plate so that it can be pressed by the N plate to control the solenoid valve; The blowing component is disposed between the two clamping plates.

9. The low-noise, low-energy-consumption dual-compressor refrigeration system according to claim 8, characterized in that, The blowing component includes: A nozzle is disposed between the two clamping plates; The nozzle is angled and extends through the spray nozzle. A connecting pipe is fixed to one of the output ends of one of the solenoid valves and connected to the nozzle.

10. The low-noise, low-energy-consumption dual-compressor refrigeration system according to claim 8, characterized in that, The uniform blowing component includes: The connector, with a rotating seal, is attached to the upper end of the rotating shaft; The hose is connected at one end to the other output end of the solenoid valve and at the other end to the connector. A through hole is provided, which passes through the rotating shaft and connects to the connector; The inner cavity is located inside the support plate; The outlet has multiple outlets, which are evenly spaced through the lower end of the support plate and are connected to the inner cavity.

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