Energy-saving fresh air conditioner

Abstract

The invention relates to an energy-saving fresh air conditioner in the field of air conditioning, and discloses an energy-saving fresh air conditioner which is characterized in that bidirectional blowing cleaning of a heat dissipation row is realized through steerable blowing pipes arranged on two sides of the heat dissipation row, the cleaning quality of the heat dissipation row is improved, and the problem that the heat exchange efficiency of the heat dissipation row of a traditional fresh air conditioner is gradually reduced along with the increase of service time is solved; the long-term operation energy consumption of the fresh air conditioner is reduced; meanwhile, through the blowing cover, the dust collecting strip and the blowing cover which are arranged on the outer sides of the pair of blowing pipes, convection collection of dust airflow is achieved, the dust discharging air pressure in the dust collecting strip on the dust collecting side is increased, overflowing of blown dust is reduced, and the probability that the dust adheres to the heat dissipation row repeatedly is reduced; in addition, the filtered clean airflow is subjected to pulse compression through the air blowing cylinder, the injection pressure and the injection effect of the clean airflow are improved, and the better removal effect on dust blocks and hardened frost in winter is achieved.

Description

Technical Field

[0001] The present invention relates to an air conditioner, in particular to an energy-saving fresh air air conditioner applied to the field of air conditioning. Background Art

[0002] Existing fresh air air conditioners use full heat exchange technology to recycle exhaust energy, reducing air conditioning load. They are equipped with an intelligent control system that automatically adjusts operating modes based on indoor and outdoor environments to avoid energy waste. They use variable-frequency compressors and fans to adjust power on demand, reducing energy consumption. At the same time, they optimize the air purification process, balancing the requirements of high-efficiency filtration and low wind resistance, and incorporate high-efficiency heat exchangers and low-resistance air duct designs.

[0003] In actual use, after long-term operation of the fresh air air conditioner, dust particles continue to accumulate on the surface of the outdoor unit heat exchanger, resulting in increased thermal resistance and decreased heat exchange efficiency. In order to maintain the set operating conditions, the system needs to consume additional energy to compensate for the heat exchange loss, and the overall operating energy consumption is significantly increased.

[0004] The existing patent with publication number CN113028511B discloses an energy-saving and environmentally friendly heating and fresh air air conditioner, which relates to the field of heating and fresh air air conditioning technology, including a frame, an outer shell, an air intake assembly, an air supply assembly, a return air assembly and a preheating assembly, wherein the outer shell is fixed on one side of the frame, and an air intake assembly is provided on the other side of the frame near the top. The air intake assembly is connected to one side of the preheating assembly through a pipe, and the other side of the preheating assembly is connected to one end of the compressor by a pipe, and the other end of the compressor is connected to the air supply assembly. At the same time, the air supply assembly is provided on the side of the frame close to the outer shell, and the preheating assembly is connected to the return air assembly and the exhaust port by an internal pipe near the bottom. In addition, the return air assembly is provided near the bottom of the frame.

[0005] The above patent can send the indoor hot air into the preheating component through the return air component, and preheat the fresh air entering the room through the preheating component, saving the compressor heating time and thus reducing the consumption of electricity; however, it does not solve the problem of increased energy consumption caused by dust accumulation in the outdoor unit heat exchanger after long-term operation of the fresh air air conditioner. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that dust accumulates in the outdoor unit heat exchanger after long-term operation of the fresh air air conditioner, resulting in increased energy consumption.

[0007] To solve the above problems, the present invention provides an energy-saving fresh air air conditioner, comprising an outdoor unit; the outdoor unit comprises a casing, a heat dissipation cover fixedly connected to the front end of the casing, an air intake cover fixedly connected to the rear end of the heat dissipation cover, the air intake cover fixedly connected to a first air extraction pipe arranged on the rear side of the casing, a filter fixedly connected inside the air intake cover, and the first air extraction pipe communicating with the air extraction cover arranged indoors; a heat dissipation radiator fixedly connected inside the heat dissipation cover, a fan impeller provided on the side of the heat dissipation radiator facing the air intake cover, the fan impeller fixedly connected to the output shaft of a first motor, and the first motor fixedly connected to the inner wall of the air intake cover via a fixing plate;

[0008] A first cleaning mechanism is installed at the heat sink, and the first cleaning mechanism includes a moving block that is slidably abutted against the lower end of the heat sink, and a pair of blowing hoods arranged on both sides of the heat sink are fixedly connected to the upper end of the moving block, and the blowing hood is provided with an open groove facing the heat sink, and a dust collecting strip is fixedly connected in the open groove, and the dust collecting strip is fixedly connected to a dust exhaust pipe, and the dust exhaust pipe is fixedly connected to a first dust collecting box fixed on the inner wall of the casing; the dust collecting strip slides toward one side of the heat sink and abuts against the blowing pipe, and the lower end of the blowing pipe is fixedly connected to a rotating pipe rotatably connected to the blowing hood, and the rotating pipe is rotatably connected to an air injection pipe, and the air injection pipe is connected to the air supply mechanism;

[0009] The dust collecting strip is a long strip with a fan-shaped cross-section. A central cavity is provided inside the dust collecting strip. Dust inlet holes connected to the central cavity are provided on the side walls of the dust collecting strip, and the dust inlet holes are connected to the open grooves; a plurality of equally spaced central spray holes are provided on the blowing pipe, and the central spray holes of a pair of blowing pipes face the same direction, and an air inlet hole is provided on the dust collecting strip to cooperate with the central spray hole; the rotating tube extends into the moving block and is rotatably connected to the moving block, the rotating tube is fixedly connected to a passive gear, the passive gear is meshed with a rack plate, the rack plate is fixedly connected to the movable end of the electric push rod, and the fixed end of the electric push rod is fixedly connected to the inner wall of the moving block.

[0010] In the above-mentioned energy-saving fresh air air conditioner, by means of steerable spray pipes and spray covers arranged on both sides of the heat exchange row, two-way convection dust removal of the heat exchanger is achieved, thereby reducing the long-term energy consumption of the fresh air air conditioner.

[0011] As a further improvement of the present application, the air supply mechanism includes a blower fixedly connected to the inner wall of the casing, the air outlet end of the blower is connected to the air injection pipe, the air inlet end of the blower is fixedly connected to the second air extraction pipe, and the second air extraction pipe is connected to the air intake cover; a piston disk is slidably connected in the blower, and the piston disk is connected to the output shaft of the first motor through a transmission assembly;

[0012] The transmission assembly includes a clamping frame fixedly connected to the piston disc, the clamping frame is clamped with an eccentric groove disc, the eccentric groove disc is fixedly connected to a horizontal shaft, the horizontal shaft is connected to a lower rotating shaft through a first gear set, the lower rotating shaft extends into the air intake hood and is connected to an upper rotating shaft through a first electromagnetic clutch, and the upper rotating shaft is connected for transmission with the output shaft of the first motor through a second gear set.

[0013] As a further improvement of the present application, a second cleaning mechanism is provided on the outside of the filter, and the second cleaning mechanism includes a scraper bar that slides against the filter, and the scraper bar is fixedly connected to a mounting shaft, and the mounting shaft is connected to the output shaft of the first motor through a second electromagnetic clutch. The first motor is a dual-shaft motor.

[0014] As a further improvement of the present application, the moving block is slidingly connected to the bottom wall of the heat dissipation hood, the moving block extends to the bottom of the heat dissipation hood and is fixedly connected to a synchronous belt, the synchronous belt is engaged with a synchronous wheel, the synchronous wheel is fixedly connected to the output shaft of the drive motor, and the drive motor is fixedly connected to the inner wall of the casing.

[0015] As a further improvement of the present application, the blowing pipe is a vertical circular tube, the heat sink includes an outer frame, a copper tube fixedly connected to the outer frame and distributed in an S shape, and a plurality of fins fixedly connected to the copper tube. The central spray hole is arranged opposite to the copper tube, and lateral spray holes are opened on both sides of the central spray hole. When the central spray hole rotates to the side of the dust collecting bar, the lateral spray holes are blocked by the dust collecting bar.

[0016] As a further improvement of the present application, the air inlet is an inclined hole, the inner opening of the inclined hole is lower than the outer opening, the central spray hole is arranged opposite to the inner wall of the air inlet, and the dust inlet is a spiral hole.

[0017] As a further improvement of the present application, a rubber pad is fixedly connected to the outer wall of the spray hood facing the open groove, and the rubber pad slides against the outer surface of the heat sink. The width of the spray hood is greater than twice the fin spacing, and the width of the open groove is less than half the width of the spray hood.

[0018] As a further improvement of the present application, the scraper strip is provided with a cylindrical cavity, and a tangential cavity connected to the cylindrical cavity is provided on the side of the scraper strip close to the filter screen, and the dust accumulated on the filter screen enters the cylindrical cavity through the tangential cavity; the outer end of the scraper strip is fixedly connected to a radial tube, the radial tube is fixedly connected to a rotating ring, the rotating ring is rotatably connected to a dust collecting ring, the inner cavity of the dust collecting ring is connected to the cylindrical cavity through the radial tube, the dust collecting ring is fixedly connected to the tangential tube, the tangential tube is fixedly connected to a second dust collecting box, and the second dust collecting box is fixedly connected to the inner wall of the casing.

[0019] As a further improvement of the present application, the first dust box and the second dust box have the same structure. Both include an outer cover and a drawer box nested in the outer cover. The drawer box extends to the outer wall of the casing. The outer cover is fixedly connected to an exhaust pipe. The exhaust pipe extends to the outside of the casing. A retention net is installed at the connection between the exhaust pipe and the outer cover.

[0020] To sum up, the present invention realizes two-way spray cleaning of the heat sink by arranging the steerable spray pipes on both sides of the heat sink, improves the cleaning quality of the heat sink, overcomes the problem of the traditional fresh air air conditioner that the heat exchange efficiency of the heat sink gradually decreases with the increase of usage time, and reduces the long-term operation energy consumption of the fresh air air conditioner; at the same time, by arranging the spray hood on the outside of a pair of spray pipes, the convective collection of the dust airflow is realized, the overflow of the sprayed dust is reduced, and the probability of dust repeatedly adhering to the heat sink is reduced; in addition, by arranging the dust collecting strip that is in sliding contact with the spray pipe, the dust exhaust pressure in the dust collecting strip on the dust collecting side is increased by utilizing the cooperation between the air inlet hole on the dust collecting strip and the central spray hole on the spray pipe, thereby improving the dust exhaust effect and further improving the cleaning quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the outdoor unit in this application;

[0022] Figure 2 This is a schematic diagram of the horizontal cross-sectional structure of the outdoor unit in this application;

[0023] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 4 This is a schematic diagram of the assembly structure of the cleaning mechanism and the heat sink in this application;

[0025] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at B in the middle;

[0026] Figure 6 This is a schematic diagram of the exploded assembly structure of the cleaning mechanism in this application;

[0027] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at C in the middle;

[0028] Figure 8 Schematic diagram of the flow of air and dust between a pair of spray hoods;

[0029] Figure 9 This is a schematic diagram of the internal structure of the casing in this application;

[0030] Figure 10 for Figure 9 Schematic diagram of the enlarged structure at D in the middle;

[0031] Figure 11 Schematic diagram of the horizontal cross-sectional structure of the scraper strip in this application;

[0032] Figure 12 This is a schematic diagram of the longitudinal cross-sectional structure of the second cleaning mechanism in this application.

[0033] Description of the numbers in the figure:

[0034] 1. Casing; 2. Heat dissipation cover; 3. Air intake cover; 4. Radiator; 401. Outer frame; 402. Copper tube; 403. Fin; 5. Fan impeller; 6. First motor; 7. Filter; 8. First exhaust pipe; 9. Exhaust branch pipe; 10. First cleaning mechanism; 11. Moving block; 12. Blowing cover; 1201. Open groove; 13. Dust collecting strip; 1301. Central cavity; 1302. Air intake hole; 1303. Dust intake hole; 14. Blowing pipe; 1401. Central spray hole; 1402. Side spray hole; 15. Rubber pad; 16. Dust exhaust pipe; 17. First dust box; 18. Rotating pipe; 19. Passive gear; 20. Rack plate; 21. Electric push rod; 22 , air injection pipe; 23. synchronous belt; 24. drive motor; 25. blower; 26. second exhaust pipe; 27. piston disc; 28. clamping frame; 29. ​​eccentric groove disc; 30. horizontal shaft; 31. first gear set; 32. lower rotating shaft; 33. first electromagnetic clutch; 34. upper rotating shaft; 35. second gear set; 36. second cleaning mechanism; 37. scraper; 3701. cylindrical cavity; 3702. tangential cavity; 38. mounting shaft; 39. second electromagnetic clutch; 40. radial tube; 41. rotating ring; 42. dust collecting ring; 43. tangential tube; 44. second dust collecting box; 4401. outer cover; 4402. drawer box; 4403. exhaust pipe; 45. grille cover. DETAILED DESCRIPTION

[0035] The following describes two implementation methods of the present application in detail with reference to the accompanying drawings.

[0036] The first implementation method:

[0037] Figure 1-8 The radiator 4 of the first embodiment of the present invention is a kind of air conditioner with energy-saving fresh air, which includes an outdoor unit; the outdoor unit includes a casing 1, a heat dissipation cover 2 is fixedly connected to the front end of the casing 1, and an air intake cover 3 is fixedly connected to the rear end of the heat dissipation cover 2, and the air intake cover 3 is fixedly connected to the first exhaust pipe 8 arranged at the rear side of the casing 1, and a filter screen 7 is fixedly connected to the inside of the air intake cover 3, and the first exhaust pipe 8 is connected to the exhaust cover arranged in the room; a heat dissipation radiator 4 is fixedly connected to the inside of the heat dissipation cover 2, and a fan impeller 5 is provided on the side of the heat dissipation radiator 4 facing the air intake cover 3, and the fan impeller 5 is fixedly connected to the output shaft of the first motor 6, and the first motor 6 is fixedly connected to the inner wall of the air intake cover 3 through a fixing plate; specifically, the first motor 6 drives the fan impeller 5 to rotate, so that the air flow in the heat dissipation cover 2 is discharged to the outside of the casing 1, thereby making the air intake cover 3 and the heat dissipation cover 2 in a negative pressure state, and sucking the indoor air through the first exhaust pipe 8 and the exhaust cover installed indoors;

[0038] See also Figure 2 and Figure 3A first cleaning mechanism 10 is installed at the heat sink 4, and the first cleaning mechanism 10 includes a moving block 11 that slides against the lower end of the heat sink 4, and a pair of blowing covers 12 arranged on both sides of the heat sink 4 are fixedly connected to the upper end of the moving block 11. The blowing cover 12 is provided with an open groove 1201 facing the heat sink 4, and a dust collecting strip 13 is fixedly connected in the open groove 1201. The dust collecting strip 13 is fixedly connected to a dust exhaust pipe 16, and the dust exhaust pipe 16 is fixedly connected to a first dust collecting box 17 fixed on the inner wall of the casing 1; the dust collecting strip 13 slides against the blowing pipe 14 toward one side of the heat sink 4, and the lower end of the blowing pipe 14 is fixedly connected to a rotating pipe 18 rotatably connected to the blowing cover 12, and the rotating pipe 18 is rotatably connected to an air injection pipe 22, and the air injection pipe 22 is connected to the air supply mechanism;

[0039] See also Figure 5 and Figure 6 The dust collecting strip 13 is a long strip with a fan-shaped cross-section. A central cavity 1301 is provided inside the dust collecting strip 13. Dust inlet holes 1303 communicating with the central cavity 1301 are provided on the side walls of the dust collecting strip 13. The dust inlet holes 1303 are communicated with the open groove 1201. The blowing pipe 14 is provided with a plurality of equally spaced central spray holes 1401. The central spray holes 1401 of a pair of blowing pipes 14 face the same direction. The dust collecting strip 13 is provided with an air inlet hole 1302 that cooperates with the central spray hole 1401. When the central spray hole 1401 of one of the blowing pipes 14 faces the heat sink 4, the central spray hole 1401 of the other blowing pipe 14 is communicated with the air inlet hole 1302 of the dust collecting strip 13 on the same side.

[0040] See also Figure 3 and Figure 6 , the rotating tube 18 extends into the moving block 11 and is rotatably connected to the moving block 11. The rotating tube 18 is fixedly connected to a passive gear 19, and the passive gear 19 is meshed with a rack plate 20. The rack plate 20 is fixedly connected to the movable end of the electric push rod 21, and the fixed end of the electric push rod 21 is fixedly connected to the inner wall of the moving block 11; when it is necessary to change the blowing direction of the radiator 4, the electric push rod 21 drives the rack plate 20 to move, and the rack plate 20 drives the pair of blowing tubes 14 to rotate 180 degrees, so that the central nozzle holes 1401 of the pair of blowing tubes 14 change their directions synchronously, thereby realizing the change of the blowing direction;

[0041] See also Figure 4 The moving block 11 is slidably connected to the bottom wall of the heat dissipation cover 2. The moving block 11 extends to the bottom of the heat dissipation cover 2 and is fixedly connected to a synchronous belt 23. The synchronous belt 23 is engaged with a synchronous wheel, and the synchronous wheel is fixedly connected to the output shaft of the drive motor 24. The drive motor 24 is fixedly connected to the inner wall of the casing 1.

[0042] For details, please refer to Figure 8When the radiator 4 of the outdoor unit needs to be cleaned, the air supply mechanism and the drive motor 24 are started. The drive motor 24 drives the moving block 11 to move back and forth along the length direction of the radiator 4. During the movement, the air supply mechanism injects the clean air flow into a pair of blowing pipes 14. The air flow in one of the blowing pipes 14 is ejected from the central nozzle 1401 and blows toward the radiator 4 to clean the radiator 4. After being blown, the dust air flow containing dust particles enters the blowing cover 12 opposite to the blowing pipe 14. The dust air flow enters the central cavity 1301 of the dust collecting strip 13 through the open groove 1201 and the dust inlet hole 1303 of the blowing cover 12, and then enters the first dust collecting box 17 through the dust exhaust pipe 16. At the same time, the clean air flow in the other blowing pipe 14 enters the central cavity 1301 of the dust collecting strip 13 through the central nozzle hole 1401 and the air inlet hole 1302, thereby accelerating the discharge of dust.

[0043] Compared with traditional fresh air air conditioners, the present invention realizes two-way spray cleaning of the heat sink 4 by means of the steerable spray pipes 14 arranged on both sides of the heat sink 4, thereby improving the cleaning quality of the heat sink 4 and overcoming the problem of the traditional fresh air air conditioner in which the heat exchange efficiency of the heat sink 4 gradually decreases with the increase of usage time; at the same time, by means of the spray hoods 12 arranged on the outside of a pair of spray pipes 14, convection collection of dust airflow is achieved, the overflow of the sprayed dust is reduced, and the probability of dust repeatedly adhering to the heat sink 4 is reduced; in addition, by means of the dust collecting strip 13 that is slidably abutted against the spray pipe 14, the dust exhaust pressure in the dust collecting strip 13 on the dust collecting side is increased by utilizing the cooperation between the air inlet hole 1302 on the dust collecting strip 13 and the central spray hole 1401 on the spray pipe 14, thereby improving the dust exhaust effect and further improving the cleaning quality.

[0044] See also Figure 4 and Figure 8 The blowing pipe 14 is a vertical circular tube. The heat sink 4 includes an outer frame 401, a copper tube 402 fixedly connected to the outer frame 401 and distributed in an S shape, and a plurality of fins 403 fixedly connected to the copper tube 402. The central spray hole 1401 is arranged opposite to the copper tube 402. Side spray holes 1402 are opened on both sides of the central spray hole 1401. When the central spray hole 1401 rotates to the side of the dust collecting bar 13, the side spray holes 1402 are blocked by the dust collecting bar 13.

[0045] Specifically, by providing a central spray hole 1401 opposite to the copper tube 402, the copper tube 402 is precisely sprayed, and by utilizing the rotation and reversing of a pair of spray tubes 14, the front outer wall and the rear outer wall of the copper tube 402 are sprayed, thereby improving the spraying effect on the copper tube 402; in addition, by providing a lateral spray hole 1402, the spray tube 14 is made to spray the side wall of the fin 403, thereby improving the cleaning effect on the fin 403.

[0046] See also Figure 3 and Figure 7 The air inlet hole 1302 is an inclined hole, the inner end opening of the inclined hole is lower than the outer end opening, the central spray hole 1401 is arranged opposite to the inner wall of the air inlet hole 1302, and the dust inlet hole 1303 is a spiral hole.

[0047] Specifically, on the dust collecting side, the dust airflow enters the central cavity 1301 of the dust collecting strip 13 through the spiral hole, and the clean airflow enters the central cavity 1301 through the inclined hole, so that the dust airflow injected into the central cavity 1301 spirals downward, thereby improving the dust collection effect, avoiding turbulence in the central cavity 1301, and improving the dust collection effect.

[0048] See also Figure 3 and Figure 5 A rubber pad 15 is fixedly connected to the outer wall of the spray cover 12 facing the open groove 1201. The rubber pad 15 slides against the outer surface of the heat sink 4. The width of the spray cover 12 is greater than twice the fin spacing, and the width of the open groove 1201 is less than half the width of the spray cover 12.

[0049] Specifically, by providing a rubber pad 15, a pair of spray hoods 12, a pair of rubber pads 15 and a heat sink 4 are enclosed to form a closed spray cavity, thereby reducing dust overflow; it should be noted that the width of the spray hood 12 is greater than twice the fin spacing (the vertical distance between adjacent fins), so that at least one pair of fins at any position of the spray hood 12 participates in the enclosed formation of a closed spray cavity, and at the same time, the width of the open groove 1201 is less than half the width of the spray hood 12, so that the airflow is blown into the enclosed closed spray cavity, thereby reducing the overflow of airflow and dust. It should be particularly noted that if the width of the spray hood 12 is too large, it is easy to block the fan impeller 5 from generating airflow flowing through the heat sink 4. Those skilled in the art can select a spray hood 12 of appropriate specifications as needed. In addition, the bending connection of the copper tube 402 is not considered.

[0050] See also Figure 2 The air supply mechanism includes a blower 25 fixedly connected to the inner wall of the casing 1, the air outlet end of the blower 25 is connected to the air injection pipe 22, and the air inlet end of the blower 25 is fixedly connected to the second air extraction pipe 26, and the second air extraction pipe 26 is connected to the air intake cover 3; a piston disk 27 is slidably connected in the blower 25, and the piston disk 27 is connected to the output shaft of the first motor 6 through a transmission assembly;

[0051] The transmission assembly includes a clamping frame 28 fixedly connected to the piston disc 27, the clamping frame 28 is clamped with an eccentric groove disc 29, the eccentric groove disc 29 is fixedly connected to a horizontal shaft 30, the horizontal shaft 30 is connected to a lower rotating shaft 32 through a first gear set 31, the lower rotating shaft 32 extends into the air intake hood 3 and is connected to an upper rotating shaft 34 through a first electromagnetic clutch 33, and the upper rotating shaft 34 is connected to the output shaft of the first motor 6 through a second gear set 35 for transmission.

[0052] Specifically, the blower 25 injects the clean air flow purified by the filter 7 into the air injection pipe 22, and then injects it into the blowing pipe 14. The pulsed high-pressure airflow generated by the blower 25 improves the cleaning effect, and has a good removal effect on adhered dust blocks and winter frost. It should be noted that the air injection pipe 22 and the second air exhaust pipe 26 are both connected to the blower 25 with a one-way valve to realize one-way flow of air.

[0053] See also Figure 2 The first exhaust pipe 8 is fixedly connected to an exhaust branch pipe 9, and the exhaust branch pipe 9 is connected to the external atmosphere. The first exhaust pipe 8 is fixedly connected to a first solenoid valve, and the exhaust branch pipe 9 is fixedly connected to a second solenoid valve.

[0054] Specifically, external atmospheric airflow can be extracted through the exhaust branch pipe 9. When the fresh air air conditioner is initially started and indoor air needs to be circulated internally, the atmospheric airflow is extracted through the exhaust branch pipe 9 to spray the radiator 4 for heat dissipation and cleaning.

[0055] In this embodiment, a grille cover 45 is fixedly connected to the front end of the heat dissipation cover 2 , and the grille cover 45 is an electrically controlled grille.

[0056] Specifically, when the fresh air air conditioner is turned off, the grille cover 45 is in a normally closed state. The electric grille is a prior art and will not be described in detail in this application.

[0057] Second implementation method:

[0058] Figure 9-12 An energy-saving fresh air air conditioner is shown. Based on the first embodiment, a second cleaning mechanism 36 is provided on the outside of the filter 7. The second cleaning mechanism 36 includes a scraper 37 that slides against the filter 7. The scraper 37 is fixedly connected to a mounting shaft 38. The mounting shaft 38 is connected to the output shaft of the first motor 6 through a second electromagnetic clutch 39. The first motor 6 is a dual-shaft motor.

[0059] Specifically, the first motor 6 drives the scraper 37 to rotate, scraping and cleaning the air inlet surface of the filter 7, reducing the probability of clogging of the filter 7, reducing the probability of increased fan power due to clogging of the filter 7, and improving energy efficiency.

[0060] See also Figure 11 and Figure 12The scraper strip 37 is provided with a columnar cavity 3701, and a tangential cavity 3702 connected to the columnar cavity 3701 is provided on the side of the scraper strip 37 close to the filter screen 7. The dust accumulated on the filter screen 7 enters the columnar cavity 3701 through the tangential cavity 3702; the outer end of the scraper strip 37 is fixedly connected to a radial tube 40, the radial tube 40 is fixedly connected to a rotating ring 41, the rotating ring 41 is rotatably connected to a dust collecting ring 42, and the inner cavity of the dust collecting ring 42 is connected to the columnar cavity 3701 through the radial tube 40, the dust collecting ring 42 is fixedly connected to the tangential tube 43, the tangential tube 43 is fixedly connected to the second dust collecting box 44, and the second dust collecting box 44 is fixedly connected to the inner wall of the casing 1.

[0061] Specifically, the scraper 37 drives the rotating ring 41 to rotate through the radial tube 40, and the airflow entrains the dust into the columnar cavity 3701 through the tangential cavity 3702, and then the dust airflow passes through the radial tube 40 into the dust collecting ring 42, and then enters the second dust collecting box 44 through the tangential tube 43.

[0062] See also Figure 10 and Figure 12 The dust collecting ring 42 is an annular cylindrical structure, the dust collecting ring 42 is fixedly connected to the filter screen 7, and the tangential tube 43 is a rectangular tube with a rectangular cross section and is tangentially connected to the dust collecting ring 42.

[0063] Specifically, the dust collecting ring 42 and the tangential pipe 43 make it easier for the dust airflow to enter the second dust collecting box 44 .

[0064] See also Figure 12 The first dust box 17 and the second dust box 44 have the same structure. Both include an outer cover 4401 and a drawer box 4402 nested in the outer cover 4401. The drawer box 4402 extends to the outer wall of the casing 1. The outer cover 4401 is fixedly connected to an exhaust pipe 4403. The exhaust pipe 4403 extends to the outside of the casing 1. A retention net is installed at the connection between the exhaust pipe 4403 and the outer cover 4401. The retention net is used to intercept dust, so that the dust airflow flows in one direction, thereby improving the dust collection effect.

[0065] Specifically, when dust needs to be cleaned, the drawer box 4402 can be extracted from the outer cover 4401, which is convenient for centralized cleaning of dust.

[0066] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. An energy-saving fresh air air conditioner, characterized in that: The outdoor unit comprises an outdoor unit; the outdoor unit comprises a casing (1); the front end of the casing (1) is fixedly connected to a heat dissipation cover (2); the rear end of the heat dissipation cover (2) is fixedly connected to an air intake cover (3); the air intake cover (3) is fixedly connected to a first air extraction pipe (8) arranged on the rear side of the casing (1); a filter screen (7) is fixedly connected inside the air intake cover (3); the first air extraction pipe (8) is connected to an air extraction cover arranged indoors; a heat dissipation radiator (4) is fixedly connected inside the heat dissipation cover (2); a fan impeller (5) is provided on the side of the heat dissipation radiator (4) facing the air intake cover (3); the fan impeller (5) is fixedly connected to the output shaft of a first motor (6); and the first motor (6) is fixedly connected to the inner wall of the air intake cover (3) via a fixing plate; The heat sink (4) is provided with a first cleaning mechanism (10), the first cleaning mechanism (10) comprising a moving block (11) in sliding contact with the lower end of the heat sink (4), the upper end of the moving block (11) being fixedly connected to a pair of spray covers (12) arranged on both sides of the heat sink (4), the spray covers (12) being provided with an open groove (1201) facing the heat sink (4), a dust collecting strip (13) being fixedly connected in the open groove (1201), and the dust collecting strip ( 13) is fixedly connected to a dust exhaust pipe (16), and the dust exhaust pipe (16) is fixedly connected to a first dust collecting box (17) fixed on the inner wall of the housing (1); the dust collecting strip (13) is slidably abutted against a blowing pipe (14) toward the side of the heat dissipating radiator (4), and the lower end of the blowing pipe (14) is fixedly connected to a rotating pipe (18) rotatably connected to the blowing cover (12), and the rotating pipe (18) is rotatably connected to an air injection pipe (22), and the air injection pipe (22) is connected to the air supply mechanism; The dust collecting strip (13) is a long strip with a fan-shaped cross section. A central cavity (1301) is provided inside the dust collecting strip (13). Dust inlet holes (1303) communicating with the central cavity (1301) are provided on the side walls of both sides of the dust collecting strip (13). The dust inlet holes (1303) are communicated with the open groove (1201). The blowing pipe (14) is provided with a plurality of central spray holes (1401) distributed at equal intervals. The central spray holes (1401) of a pair of the blowing pipes (14) face the same direction, and the dust collecting strip (1301) is provided with a plurality of central spray holes (1401) distributed at equal intervals. An air inlet hole (1302) is provided on the dust strip (13) and is arranged in cooperation with the central spray hole (1401); the rotating tube (18) extends into the moving block (11) and is rotatably connected to the moving block (11); the rotating tube (18) is fixedly connected to a passive gear (19); the passive gear (19) is meshed with a rack plate (20); the rack plate (20) is fixedly connected to the movable end of an electric push rod (21); and the fixed end of the electric push rod (21) is fixedly connected to the inner wall of the moving block (11).

2. An energy-saving fresh air air conditioner according to claim 1, characterized in that: The air supply mechanism comprises a blower (25) fixedly connected to the inner wall of the housing (1); the air outlet end of the blower (25) is connected to the air injection pipe (22); the air inlet end of the blower (25) is fixedly connected to a second air extraction pipe (26); the second air extraction pipe (26) is connected to the air inlet cover (3); a piston disc (27) is slidably connected in the blower (25), and the piston disc (27) is connected to the output shaft of the first motor (6) through a transmission assembly; The transmission assembly comprises a clamping frame (28) fixedly connected to the piston disc (27), the clamping frame (28) being clamped with an eccentric groove disc (29), the eccentric groove disc (29) being fixedly connected with a horizontal shaft (30), the horizontal shaft (30) being connected to a lower rotating shaft (32) via a first gear set (31), the lower rotating shaft (32) extending into the air intake cover (3) and being connected to an upper rotating shaft (34) via a first electromagnetic clutch (33), the upper rotating shaft (34) being connected to the output shaft of the first motor (6) for transmission via a second gear set (35).

3. The energy-saving fresh air air conditioner according to claim 2, characterized in that: A second cleaning mechanism (36) is provided on the outside of the filter (7). The second cleaning mechanism (36) includes a scraper (37) that is in sliding contact with the filter (7). The scraper (37) is fixedly connected to a mounting shaft (38). The mounting shaft (38) is connected to the output shaft of the first motor (6) through a second electromagnetic clutch (39). The first motor (6) is a dual-shaft motor.

4. The energy-saving fresh air air conditioner according to claim 1, characterized in that: The moving block (11) is slidably connected to the bottom wall of the heat dissipation cover (2). The moving block (11) extends to the bottom of the heat dissipation cover (2) and is fixedly connected to a synchronous belt (23). The synchronous belt (23) is engaged with a synchronous wheel. The synchronous wheel is fixedly connected to the output shaft of the drive motor (24). The drive motor (24) is fixedly connected to the inner wall of the housing (1).

5. The energy-saving fresh air air conditioner according to claim 1, characterized in that: The blowing pipe (14) is a vertical circular tube. The heat sink (4) comprises an outer frame (401), a copper tube (402) fixedly connected to the outer frame (401) and distributed in an S shape, and a plurality of fins (403) fixedly connected to the copper tube (402). The central spray hole (1401) and the copper tube (402) are arranged opposite to each other. Side spray holes (1402) are provided on both sides of the central spray hole (1401). When the central spray hole (1401) rotates to the side of the dust collecting bar (13), the side spray holes (1402) are blocked by the dust collecting bar (13).

6. The energy-saving fresh air air conditioner according to claim 1, characterized in that: The air inlet (1302) is an inclined hole, the inner opening of the inclined hole is lower than the outer opening, the central spray hole (1401) is arranged opposite to the inner wall of the air inlet (1302), and the dust inlet hole (1303) is a spiral hole.

7. The energy-saving fresh air air conditioner according to claim 1, characterized in that: A rubber pad (15) is fixedly connected to the outer wall of the spray cover (12) on the side facing the open groove (1201), and the rubber pad (15) is in sliding contact with the outer surface of the heat sink (4). The width of the spray cover (12) is greater than twice the fin spacing, and the width of the open groove (1201) is less than half the width of the spray cover (12).

8. The energy-saving fresh air air conditioner according to claim 3, characterized in that: The scraper (37) is provided with a columnar cavity (3701), and a tangential cavity (3702) communicating with the columnar cavity (3701) is provided on the side of the scraper (37) close to the filter (7), and dust accumulated on the filter (7) enters the columnar cavity (3701) through the tangential cavity (3702); the outer end of the scraper (37) is fixedly connected to a radial tube (40), the radial tube (40) is fixedly connected to a rotating ring (41), the rotating ring (41) is rotatably connected to a dust collecting ring (42), the inner cavity of the dust collecting ring (42) is communicated with the columnar cavity (3701) through the radial tube (40), the dust collecting ring (42) is fixedly connected to a tangential tube (43), the tangential tube (43) is fixedly connected to a second dust collecting box (44), and the second dust collecting box (44) is fixedly connected to the inner wall of the casing (1).

9. The energy-saving fresh air air conditioner according to claim 8, characterized in that: The first dust box (17) and the second dust box (44) have the same structure, and both include an outer cover (4401) and a drawer box (4402) nested in the outer cover (4401), the drawer box (4402) extends to the outer wall of the housing (1), the outer cover (4401) is fixedly connected to an exhaust pipe (4403), the exhaust pipe (4403) extends to the outside of the housing (1), and a retention net is installed at the connection point between the exhaust pipe (4403) and the outer cover (4401).

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