An axial flow fan for fresh air exchange

Abstract

The application relates to the technical field of axial flow fans, and discloses a new air exchange axial flow fan, which comprises an axial flow fan body, a support is arranged at one end of the inside of the axial flow fan body, a motor is installed on the support, an output end of the motor is provided with a rotating shaft, one end of the rotating shaft is provided with an axial flow fan, a first cooling assembly is arranged on the outer wall of the rotating shaft, and a second cooling assembly is arranged outside the motor; the cooling liquid and the viscosity reducer in the first mixing cavity and the second mixing cavity can be respectively stirred and mixed by the rotating of the plurality of stirring assemblies; the cooling liquid flow resistance is reduced by the viscosity reducer, so that the cooling liquid can flow faster to take away heat, and the heat dissipation effect of the motor is promoted; two third stirring pieces are used to stretch the two elastic pieces away from each other, the area of the stirring assembly in contact with the solution is expanded, the stirring and mixing effect of the solution is improved, the particles after grinding and crushing are dissolved, and the heat transfer hindered by the particle impurities is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of axial flow fans, and more particularly relates to an axial flow fan for fresh air exchange. BACKGROUND

[0002] A fresh air exchange system needs to continuously deliver outdoor fresh air to the indoor, while discharging dirty air, and the airflow characteristics of an axial flow fan can meet this demand. The axial flow fan is a fan with airflow in the same direction as the shaft of the fan blade, such as an electric fan, and the fan of an air conditioner outdoor unit is an axial flow type. The reason why it is called "axial flow type" is that the gas flows parallel to the fan shaft. The axial flow fan is usually used in places where the flow requirement is high and the pressure requirement is low. However, the axial flow fan in the prior art has the following defects:

[0003] 1. In the prior art, the axial flow fan for fresh air exchange generates wind by driving the fan blade to rotate by the motor. During long-time operation, the motor generally generates a lot of heat, and the heat dissipation of the motor is mainly relied on the self-blowing cooling. When the ambient temperature is high, it is difficult to exchange heat with the surrounding environment through heat exchange, so that the self-cooling effect of the axial flow fan is poor.

[0004] 2. In the prior art, the axial flow fan for fresh air exchange usually uses cooling liquid to cool the motor in order to improve the heat dissipation effect of the motor. However, since the cooling liquid is circulated for a long time, the water content in the cooling liquid is continuously reduced, which increases the viscosity of the cooling liquid, increases the flow resistance of the cooling liquid, and cannot quickly circulate to take away heat, thereby affecting the heat dissipation effect of the motor.

[0005] 3. In the prior art, when the cooling liquid is added or replaced, dust and sand may be mixed in if the operating environment is not clean (such as a workshop or outdoors). The particulate impurities may deposit on the surface of the radiator fins, channels or cold plate, form a thermal insulation layer, hinder heat transfer, easily block the flow channel, reduce the flow of the cooling liquid, cause local overheating, and greatly affect the heat dissipation effect of the motor.

[0006] Therefore, in view of the above problems, the present application provides an axial flow fan for fresh air exchange, which has the advantages of practicality and value. SUMMARY

[0007] The present application provides an axial flow fan for fresh air exchange to overcome the above-mentioned defects in the prior art.

[0008] The purpose and effect of the axial flow fan for fresh air exchange of the present application are achieved by the following specific technical means:

[0009] The utility model provides a kind of axial fan for fresh air exchange, including the axial fan body, the inside one end of the axial fan body is equipped with support, motor is installed on the support, the output of the motor is equipped with rotating shaft, the one end of the rotating shaft is equipped with axial fan, the outer wall of the rotating shaft is equipped with first cooling component, the outside of the motor is equipped with second cooling component;The first cooling component includes movable ring and sleeve, the movable ring is sleeved on the outer wall of the rotating shaft, one end of the sleeve is equipped with cylinder, the inside of the cylinder is slidably equipped with piston plate, the both sides of the piston plate are equipped with a plurality of stirring components;The stirring component includes mounting block and first stirring piece, one end of the mounting block is slidably connected with the inside of the first stirring piece, one side of the first stirring piece is symmetrically equipped with two fixed blocks, the second stirring piece is connected between the one end of two fixed blocks, one sliding rod is slidably arranged on two fixed blocks, one third stirring piece is arranged on the one end of two sliding rods respectively, and one elastic member is connected between the two ends of the second stirring piece and two third stirring pieces respectively.

[0010] Further technical solutions, a plurality of fixed plates are connected between the outer wall of the sleeve and the inner wall of the axial fan body, the inside of the cylinder is divided into a first mixing cavity and a second mixing cavity by the piston plate, a first spring is connected between one end of the mounting block and the inside of the first stirring piece, a top block is arranged on one end of the mounting block, the other end of the mounting block is connected with one side of the piston plate, the one end of the top block is slidably connected with the inclined surface of the one end of two sliding rods, a cooling liquid tank is arranged on the lower side of the inside of the axial fan body, a viscosity reducer tank is arranged on the upper side of the inside of the axial fan body, a first connecting pipe is connected between the cooling liquid tank and the first mixing cavity and the second mixing cavity, and a second connecting pipe is connected between the viscosity reducer tank and the first mixing cavity and the second mixing cavity.

[0011] Further technical solutions, the inner wall of the movable ring is slidably connected with the outer wall of the rotating shaft, the outer wall of the movable ring is slidably connected with the inner wall of the sleeve, a guide plate is arranged on the outer wall of one end of the movable ring, an annular groove is arranged on the guide plate, a first cooling plate is arranged in the annular groove, a plurality of first through holes are arranged on one end wall of the annular groove, a plurality of second through holes are arranged on the first cooling plate, and the cross section of the first cooling plate is in V-shaped structure.

[0012] Further technical solutions, a connecting channel is arranged in the inner wall of the movable ring, the connecting channel is communicated with the first mixing cavity, the connecting channel is communicated with the inside of the guide plate, the inside of the guide plate is communicated with the inside of the first cooling plate, a first annular member is annularly and slidably arranged on the outer wall of the guide plate, the first annular member is communicated with the inside of the guide plate, and the inside of the first annular member is communicated with the cooling liquid tank through a first telescopic connecting pipe.

[0013] Further technical solutions, the outer wall of the motor is provided with a plurality of first fins on both sides, the second cooling assembly comprises a frame, the frame is fixed on the upper side of the support, the two side walls of the frame are respectively provided with a plurality of openings, the two side walls of the frame are respectively provided with a U-shaped block in sliding mode, the first sliding plate is slidably arranged on the U-shaped block, one end of the first sliding plate is provided with a second cooling plate, the inner wall of the axial flow fan body is respectively provided with a guide block on both sides, the other end of the first sliding plate is in sliding contact with the side slope of the guide block, a plurality of third cooling plates are arranged on one side of the second cooling plate, a push rod is slidably arranged on the two side walls of each third cooling plate, and a second fin is arranged on the end of the two push rods away from each other.

[0014] Further technical solutions, the two ends of the U-shaped block are respectively provided with a second sliding plate in sliding mode, one end of the second sliding plate is connected with the second cooling plate, the other end of the second sliding plate is connected with the inside of the U-shaped block and is provided with a second spring, S-shaped channels are arranged in the two side walls of the frame, one end of the two S-shaped channels is communicated with each other, and the other end of the two S-shaped channels is communicated with the second mixing cavity and is provided with a third connecting pipe.

[0015] Further technical solutions, each third cooling plate is located between two adjacent first fins, a third spring is arranged between the two sides of the two second fins away from each other and the two sides of the third cooling plate, a jack is slidably arranged at one end of the third cooling plate, the two sides of one end of the jack are in sliding contact with the inclined surfaces of the two push rods, the other end of the jack is provided with a cleaning piece on both sides, one end of the cleaning piece is in frictional contact with one side of the first fin, and the outer wall of the jack is provided with a movable plate. The fourth spring is arranged between the side of the movable plate and the inside of the third cooling plate.

[0016] Further technical solutions, the outer wall of the piston plate is annularly slidably provided with a second annular piece, the outer wall of the second annular piece is connected with one side of the two U-shaped blocks and is provided with a fourth connecting pipe, one end of the fourth connecting pipe is communicated with the inside of the piston plate, the inside of the piston plate is communicated with the second mixing cavity, the other end of the fourth connecting pipe is connected with the inside of the first sliding plate and is provided with a second annular piece, the inside of the first sliding plate is communicated with the inside of the second cooling plate, the inside of the second cooling plate is communicated with the insides of a plurality of third cooling plates, and the inside of the second cooling plate is communicated with the cooling liquid tank and is provided with a second telescopic connecting pipe.

[0017] Further technical solutions, one side of the outer wall of the rotating shaft is provided with a spline, one side of the inner wall of the movable ring is provided with a spline groove, the spline axially slides in the spline groove, the inner wall of the sleeve is provided with a spiral slide groove with a head and tail connected to each other, one end of the outer wall of the movable ring is provided with a sliding block, and the sliding block spirally slides in the spiral slide groove.

[0018] Further technical solutions, one end of the axial flow fan body is provided with a filter screen, the other end of the axial flow fan body is provided with a protective screen, both sides of the outer wall of the cylinder are respectively provided with an avoiding opening, a baffle is slidably arranged in the avoiding opening, and the baffle is connected with the fourth connecting pipe.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The utility model discloses a new trend exchanges with axial flow fan, through the setting of movable ring, piston plate, stirring subassembly, movable ring rotates and drives piston plate rotation, and piston plate rotation drives several stirring subassembly rotation, utilizes several stirring subassembly rotation respectively to the cooling liquid and viscosity reducer in first mixing chamber and second mixing chamber mixes, utilizes viscosity reducer to make cooling liquid flow resistance reduce, so as to can more quickly circulate flow and take away heat, promote the effect of heat dissipation to motor. Again through the setting of mounting block, first stirring piece, second stirring piece, third stirring piece, elastic piece, piston plate axial movement drives several stirring subassembly and moves to the direction close to first mixing chamber, and stirring subassembly axial movement extrudes and breaks the particle in cooling liquid, and piston plate rotation drives several stirring subassembly rotation, thereby the particle in cooling liquid is ground and broken effect. And second stirring piece is resisted by the side wall of first mixing chamber, and one end of mounting block slides in first stirring piece, and pushes the top block and moves. Because one end of top block two sides respectively with two slide bars mutual close one end inclined surface sliding contact, top block moves and pushes two slide rods away from each other, and two third stirring pieces are driven away from each other by two slide rods away from each other. Two third stirring pieces are away from each other respectively to two elastic piece stretch, expand the area of stirring subassembly and solution contact, thereby improve the effect of solution stirring mixture, be favorable to the particle after grinding and breaking and dissolve, reduce the particle impurity deposition in radiator fin, microchannel or cold plate surface, form the heat insulation layer, hinder the heat transfer condition. Finally through the setting of deflector, first cooling plate, axial flow fan rotates and pushes air and flows along the axial direction, makes air enter annular groove. Utilize the section of first cooling plate and present V type structure, make air and first cooling plate inner surface fully contact, thereby to air preliminary cooling effect. The air in annular groove moves to between first cooling plate and annular groove through several second through -holes, and air is sprayed through several first through -holes, at this time, utilize the cooling liquid in deflector to the air through first through -hole and carry out secondary cooling, so as to air double cooling effect, be favorable to improve the air cooling heat dissipation effect of motor. And movable ring rotates and drives deflector rotation, and movable ring axial movement drives deflector axial movement, thereby make deflector rotate and axial movement, so as to the air after cooling is sprayed spirally, expand the range of air after cooling and move, be favorable to greatly improve the air cooling heat dissipation effect of motor, improve the service life of motor.

[0021] The axial flow fan for fresh air exchange of the application, through the setting of the first fin, the second cooling plate and the third cooling plate, part of the cooling liquid in the second mixing cavity is transported into the two fourth connecting pipes through the inside of the piston plate, the cooling liquid in the fourth connecting pipe is transported into the first sliding plate through the second annular piece, the cooling liquid in the first sliding plate is transported into the second cooling plate, the cooling liquid in the second cooling plate is transported into the several third cooling plates, the cooling liquid in the several third cooling plates moves into the second cooling plate, the cooling liquid in the second cooling plate is transported into the cooling liquid tank through the second telescopic connecting pipe, so as to make the cooling liquid circulate and flow in the cooling liquid tank, the second mixing cavity and the second cooling plate. And the heat generated by the motor is transferred to the several first fins, and the third cooling plate is located between the adjacent two first fins, so that the heat generated by the motor can be carried away by the circulating flow of the cooling liquid. Then, through the setting of the first sliding plate, the fourth connecting pipe, the second cooling plate, the guide block and the third cooling plate, the axial movement of the U-shaped block, the first sliding plate and the second cooling plate drives the axial movement of the several third cooling plates, so as to increase the cooling range of the second cooling assembly to the motor. Then, the movement of the second cooling plate drives the movement of the several third cooling plates in the direction close to the motor, so that the heat generated by the motor can be carried away by the cooling liquid circulating in the second cooling plate and the several third cooling plates, and the heat dissipation effect of the second cooling assembly to the motor is promoted. Finally, through the setting of the second fin, the ejector rod and the cleaning piece, the two second fins are away from each other and contact with the adjacent two first fins, so that the heat generated by the motor is transferred to the third cooling plate through the contact between the first fin and the second fin, and the cooling liquid in the third cooling plate can circulate faster to carry away the heat. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0023] The application will be further described below in combination with the drawings and embodiments.

[0024] Figure 1 It is a first isometric structural schematic diagram of the application;

[0025] Figure 2 It is a second isometric structural schematic diagram of the application;

[0026] Figure 3 It is a first isometric structural schematic diagram of the internal structure of the axial flow fan body in the application;

[0027] Figure 4This is a schematic diagram of the second isometric structure of the internal structure of the axial flow fan body in this invention;

[0028] Figure 5 This is a schematic diagram of the third isometric structure of the internal structure of the axial flow fan body in this invention;

[0029] Figure 6 This is a front view schematic diagram of the present invention;

[0030] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at point AA;

[0031] Figure 8 for Figure 7 A magnified schematic diagram of the local structure at point D;

[0032] Figure 9 for Figure 8 A magnified schematic diagram of the local structure at point E;

[0033] Figure 10 for Figure 4 A front view structural diagram;

[0034] Figure 11 for Figure 10 Schematic diagram of the cross-sectional structure at point BB;

[0035] Figure 12 for Figure 11 A magnified schematic diagram of the local structure at point F;

[0036] Figure 13 for Figure 11 A magnified schematic diagram of the local structure at point G;

[0037] Figure 14 for Figure 5 A schematic diagram of the left-side view structure;

[0038] Figure 15 for Figure 14 Schematic diagram of the cross-sectional structure at the CC section;

[0039] Figure 16 for Figure 15 A magnified schematic diagram of the structure at point K.

[0040] Explanation of reference numerals in the attached figures:

[0041] Axial flow fan body 10, filter screen 11, protective screen 12, motor 13, axial flow fan 14, support 15, rotating shaft 16, spline 17, movable ring 18, spline groove 19, sleeve 20, spiral chute 21, sliding block 22, fixed plate 23, cylinder 24, piston plate 25, first mixing cavity 26, second mixing cavity 27, mounting block 28, first stirring piece 29, fixed block 30, second stirring piece 31, sliding rod 32, third stirring piece 33, elastic piece 34, top block 35, first spring 36, flow guide plate 37, annular groove 38, first cooling plate 39, first through hole 40, second through hole 41, connecting channel 42, cooling liquid tank 43, first connecting pipe 44, viscosity reducer tank 45, second connecting pipe 46, frame 47, through port 48, U-shaped block 49, first sliding plate 50, fourth connecting pipe 51, second cooling plate 52, second annular piece 53, guide block 54, S-shaped channel 55, second sliding plate 56, second spring 57, third cooling plate 58, second fin 59, push rod 60, third spring 61, jacking rod 62, movable plate 63, fourth spring 64, cleaning piece 65, first fin 66, first annular piece 67, first telescopic connecting pipe 68, second telescopic connecting pipe 69, third connecting pipe 70, avoiding port 71, baffle 72. DETAILED DESCRIPTION

[0042] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0043] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] As shown in the accompanying Figure 1 to the accompanying Figure 16 drawings:

[0046] The application provides an axial flow fan for fresh air exchange.

[0047] Referring to the drawings Figure 1 to the drawings Figure 16 , including the axial flow fan body 10, the inner end of the axial flow fan body 10 is provided with a support 15, the motor 13 is installed on the support 15, the output end of the motor 13 is provided with a rotating shaft 16, one end of the rotating shaft 16 is provided with an axial flow fan 14, the outer wall of the rotating shaft 16 is provided with a first cooling assembly, the outer part of the motor 13 is provided with a second cooling assembly; the first cooling assembly includes a movable ring 18 and a sleeve 20, the movable ring 18 is sleeved on the outer wall of the rotating shaft 16, one end of the sleeve 20 is provided with a cylinder 24, the inner part of the cylinder 24 is slidably provided with a piston plate 25, the two sides of the piston plate 25 are both provided with a plurality of stirring assemblies; the stirring assembly includes a mounting block 28 and a first stirring piece 29, one end of the mounting block 28 is slidably arranged in the first stirring piece 29, one side of the first stirring piece 29 is symmetrically provided with two fixed blocks 30, the two fixed blocks 30 are connected by a second stirring piece 31 at one end, one sliding rod 32 is slidably arranged on each of the two fixed blocks 30, one third stirring piece 33 is arranged at one end of each of the two sliding rods 32, and one elastic piece 34 is arranged between the two ends of the second stirring piece 31 and the two third stirring pieces 33.

[0048] Preferably, referring to the drawings Figure 5 , the drawings Figure 7 , the drawings Figure 8 , the drawings Figure 9 , a plurality of fixed plates 23 are connected between the outer wall of the sleeve 20 and the inner wall of the axial flow fan body 10, the first mixing cavity 26 and the second mixing cavity 27 are separated by the piston plate 25 in the inner part of the cylinder 24, the first spring 36 is arranged between one end of the mounting block 28 and the inner part of the first stirring piece 29, the top block 35 is arranged at one end of the mounting block 28, the other end of the mounting block 28 is connected with one side of the piston plate 25, the top block 35 is in sliding contact with the inclined surface of one end of each of the two sliding rods 32, the cooling liquid tank 43 is arranged at the lower side of the inner part of the axial flow fan body 10, the viscosity reducer tank 45 is arranged at the upper side of the inner part of the axial flow fan body 10, the first connecting pipe 44 is arranged between the cooling liquid tank 43 and each of the first mixing cavity 26 and the second mixing cavity 27, and the second connecting pipe 46 is arranged between the viscosity reducer tank 45 and each of the first mixing cavity 26 and the second mixing cavity 27.

[0049] Preferably, referring to the drawings Figure 5 , the drawings Figure 7 , the drawings Figure 8The inner wall of the movable ring 18 is in sliding contact with the outer wall of the rotating shaft 16, and the outer wall of the movable ring 18 is in sliding contact with the inner wall of the sleeve 20. An outer wall of one end of the movable ring 18 is provided with a flow guide plate 37. The flow guide plate 37 is provided with an annular groove 38. The annular groove 38 is provided with a first cooling plate 39. One end wall of the annular groove 38 is provided with a plurality of first through holes 40. The first cooling plate 39 is provided with a plurality of second through holes 41. The cross section of the first cooling plate 39 is in a V-shaped structure.

[0050] Preferably, referring to the accompanying drawings Figure 7 , the accompanying drawings Figure 8 , the inner wall of the movable ring 18 is provided with a connecting channel 42. The connecting channel 42 is in communication with the first mixing cavity 26. The connecting channel 42 is in communication with the interior of the flow guide plate 37. The interior of the flow guide plate 37 is in communication with the interior of the first cooling plate 39. The outer wall of the flow guide plate 37 is annularly and slidably provided with a first annular member 67. The first annular member 67 is in communication with the interior of the flow guide plate 37. The interior of the first annular member 67 is in communication with the cooling liquid tank 43 through a first telescopic connecting pipe 68.

[0051] Preferably, referring to the accompanying drawings Figure 4 , the accompanying drawings Figure 5 , the accompanying drawings Figure 13 , the accompanying drawings Figure 15 , the accompanying drawings Figure 16 The outer wall of the motor 13 is provided with a plurality of first fins 66 on both sides. The second cooling assembly comprises a frame body 47. The frame body 47 is fixed to the upper side of the support 15. The two side walls of the frame body 47 are respectively provided with a plurality of through openings 48. The two side walls of the frame body 47 are respectively slidably provided with a U-shaped block 49. The U-shaped block 49 is slidably provided with a first sliding plate 50. One end of the first sliding plate 50 is provided with a second cooling plate 52. The inner wall of the axial flow fan body 10 is respectively provided with a guide block 54 on both sides. The other end of the first sliding plate 50 is in sliding contact with the inclined surface of one side of the guide block 54. One side of the second cooling plate 52 is provided with a plurality of third cooling plates 58. The two side walls of the third cooling plate 58 are respectively slidably provided with a push rod 60. The mutually far ends of the two push rods 60 are respectively provided with a second fin 59.

[0052] Preferably, referring to the accompanying drawings Figure 7 , the accompanying drawings Figure 13 to the accompanying drawings Figure 16 The two ends of the U-shaped block 49 are respectively slidably provided with a second sliding plate 56. One end of the second sliding plate 56 is connected with the second cooling plate 52. The other end of the second sliding plate 56 is connected with the interior of the U-shaped block 49 through a second spring 57. The two side walls of the frame body 47 are respectively provided with an S-shaped channel 55. One end of the two S-shaped channels 55 is in communication with each other. The other end of the two S-shaped channels 55 is respectively in communication with the second mixing cavity 27 through a third connecting pipe 70.

[0053] Preferably, referring to the accompanying drawings Figure 13 to the accompanying drawings Figure 16Each third cooling plate 58 is located between two adjacent first fins 66, and a third spring 61 is arranged between the two sides of the third cooling plate 58 and the two second fins 59, respectively. One end of the third cooling plate 58 is slidably provided with a top rod 62, and the other end of the top rod 62 is slidably in contact with the inclined surfaces of the two push rods 60. The outer wall of the top rod 62 is provided with a movable plate 63, and the inside of the third cooling plate 58 is connected with the movable plate 63 through a fourth spring 64.

[0054] Preferably, referring to the accompanying drawings Figure 5 , the accompanying drawings Figure 7 , the accompanying drawings Figure 12 , the accompanying drawings Figure 13 The outer wall of the piston plate 25 is annularly slidably provided with a second annular part 53, and the outer wall of the second annular part 53 is connected with one side of the two U-shaped blocks 49 through a fourth connecting pipe 51, respectively. One end of the fourth connecting pipe 51 is in communication with the inside of the piston plate 25, and the inside of the piston plate 25 is in communication with the second mixing cavity 27. The other end of the fourth connecting pipe 51 is connected with the inside of the first sliding plate 50 through the second annular part 53, and the inside of the first sliding plate 50 is in communication with the inside of the second cooling plate 52. The inside of the second cooling plate 52 is in communication with the inside of the plurality of third cooling plates 58, and the inside of the second cooling plate 52 is in communication with the cooling liquid tank 43 through a second telescopic connecting pipe 69.

[0055] Preferably, referring to the accompanying drawings Figure 8 , the accompanying drawings Figure 12 One side of the outer wall of the rotating shaft 16 is provided with a spline 17, and one side of the inner wall of the movable ring 18 is provided with a spline groove 19. The spline 17 is axially slidably arranged in the spline groove 19. The inner wall of the sleeve 20 is provided with a spiral slide groove 21 with a head and a tail in communication. The outer wall of one end of the movable ring 18 is provided with a sliding block 22, and the sliding block 22 is spirally slidably arranged in the spiral slide groove 21.

[0056] Preferably, referring to the accompanying drawings Figure 1 to the accompanying drawings Figure 5 , the accompanying drawings Figure 11 One end of the axial flow fan body 10 is provided with a filter screen 11, and the other end of the axial flow fan body 10 is provided with a protective screen 12. The outer wall of the cylinder 24 is provided with an avoiding opening 71 on both sides, and the avoiding opening 71 is slidably provided with a baffle 72 connected with the fourth connecting pipe 51. The avoiding opening 71 is used for the axial back-and-forth movement of the fourth connecting pipe 51, and the baffle 72 is used for blocking the solution in the cylinder 24 from overflowing through the avoiding opening 71.

[0057] The specific use method of the present application is as follows:

[0058] Firstly, the fresh air exchange system controls the motor 13 to start, and the motor 13 drives the rotating shaft 16 and the axial flow fan 14 to rotate. The axial flow fan 14 rotates to push air to flow in the axial direction, and the energy transmission efficiency is high, which is suitable for scenes requiring large air volume but low pressure demand. During the long-time operation of the motor 13, a large amount of heat will be generated, and the heat dissipation of the motor 13 is mainly relied on the self-blowing cooling. When the ambient temperature is high, it is difficult to exchange heat with the surrounding environment through heat exchange to cool down, so that the self-cooling effect of the motor 13 is poor. At this time, the first cooling assembly is used to improve the heat dissipation efficiency of the motor 13, so as to ensure that it can still operate stably in a high-temperature environment and prolong the service life.

[0059] The motor 13 drives the rotating shaft 16 to rotate, and the rotating shaft 16 drives the spline 17 to rotate. Since the spline 17 is in axial sliding contact with the spline groove 19, the rotating shaft 16 rotates to drive the movable ring 18 to rotate by cooperating with the spline 17 and the spline groove 19. The movable ring 18 rotates to drive the sliding block 22 to rotate, and the sliding block 22 rotates to be guided by the spiral slide groove 21, so that the movable ring 18 rotates and moves axially back and forth.

[0060] Secondly, the movable ring 18 moves axially back and forth to drive the piston plate 25 to move axially back and forth. The piston plate 25 moves axially back and forth in the cylinder 24 to respectively deliver the cooling liquid in the cooling liquid tank 43 to the first mixing cavity 26 and the second mixing cavity 27 through two first connecting pipes 44, and respectively deliver the viscosity reducer in the viscosity reducer tank 45 to the first mixing cavity 26 and the second mixing cavity 27 through two second connecting pipes 46.

[0061] At the same time, the movable ring 18 drives the piston plate 25 to rotate, and the piston plate 25 drives a plurality of stirring assemblies to rotate. The plurality of stirring assemblies rotate to respectively stir and mix the cooling liquid and the viscosity reducer in the first mixing cavity 26 and the second mixing cavity 27. The viscosity reducer reduces the flow resistance of the cooling liquid, so that the cooling liquid can circulate and flow faster to take away heat, and promote the heat dissipation effect of the motor 13.

[0062] Then, the piston plate 25 moves axially towards the first mixing cavity 26, the piston plate 25 drives the stirring assemblies to move axially towards the first mixing cavity 26, the stirring assemblies crush the particles in the cooling liquid by moving axially, and the piston plate 25 rotates to drive the stirring assemblies to rotate, thereby grinding the particles in the cooling liquid. And the second stirring part 31 is resisted by the side wall of the first mixing cavity 26, one end of the mounting block 28 slides in the first stirring part 29 to drive the top block 35 to move. Since the two sides of one end of the top block 35 are respectively in sliding contact with the inclined surfaces of the two ends of the two slide rods 32 that are close to each other, the top block 35 drives the two slide rods 32 to move away from each other, and the two third stirring parts 33 are driven to move away from each other. The two third stirring parts 33 move away from each other to stretch the two elastic members 34 respectively, thereby increasing the area of the stirring assemblies in contact with the solution, improving the stirring and mixing effect of the solution, facilitating the dissolution of the ground particles, reducing the deposition of particle impurities on the fins of the radiator, microchannels or the surface of the cold plate to form a heat insulation layer and hinder heat transfer. Wherein, one end of the mounting block 28 slides in the first stirring part 29 to compress the first spring 36 to generate elastic force. The two third stirring parts 33 move away from each other to stretch the two elastic members 34 respectively to generate elastic force.

[0063] At the same time, the piston plate 25 moves axially towards the first mixing cavity 26, the cooling liquid in the first mixing cavity 26 is delivered to the guide plate 37 through the connecting channel 42, the cooling liquid in the guide plate 37 is delivered to the first cooling plate 39, and the cooling liquid circulates in the guide plate 37 and the first cooling plate 39. The cooling liquid in the first cooling plate 39 is delivered to the cooling liquid tank 43 through the first telescopic connecting pipe 68, so that the cooling liquid circulates in the cooling liquid tank 43, the first mixing cavity 26 and the first cooling plate 39, maintains the flowability of the cooling liquid, and realizes the circulating cooling effect. At this time, the axial flow fan 14 rotates to push the air to flow axially, so that the air enters the annular groove 38. The cross section of the first cooling plate 39 is V-shaped, so that the air fully contacts the inner surface of the first cooling plate 39, thereby realizing the preliminary cooling effect on the air. The air in the annular groove 38 moves between the first cooling plate 39 and the annular groove 38 through the second through hole 41, and the air is sprayed out through the first through hole 40. At this time, the cooling liquid in the guide plate 37 is used to cool the air passing through the first through hole 40 twice, so as to realize the double cooling effect on the air, which is beneficial to improve the air cooling and heat dissipation effect of the motor 13. The movable ring 18 rotates to drive the guide plate 37 to rotate, and the movable ring 18 moves axially to drive the guide plate 37 to move axially, so that the guide plate 37 rotates and moves axially, so as to spray the cooled air spirally, expand the moving range of the cooled air, and improve the air cooling and heat dissipation effect of the motor 13 greatly, thereby prolonging the service life of the motor 13. The first annular part 67 slides on the outer wall of the guide plate 37, so that the rotation of the guide plate 37 does not affect the internal communication between the first telescopic connecting pipe 68 and the guide plate 37

[0064] Then, when the piston plate 25 moves axially towards the second mixing cavity 27, the piston plate 25 moves axially to drive the stirring assemblies to move towards the second mixing cavity 27, the stirring assemblies move axially to crush the particles in the cooling liquid, and the piston plate 25 rotates to drive the stirring assemblies to rotate, thereby grinding the particles in the cooling liquid, reducing the content of the particles in the cooling liquid in the second mixing cavity 27.

[0065] Meanwhile, the piston plate 25 moves axially towards the second mixing cavity 27, and a part of the coolant in the second mixing cavity 27 is transported to the two fourth connecting pipes 51 through the inside of the piston plate 25, the coolant in the fourth connecting pipes 51 is transported to the first sliding plate 50 through the second annular part 53, the coolant in the first sliding plate 50 is transported to the second cooling plate 52, the coolant in the second cooling plate 52 is transported to the third cooling plates 58, the coolant in the third cooling plates 58 moves to the second cooling plate 52, and the coolant in the second cooling plate 52 is transported to the coolant tank 43 through the second telescopic connecting pipe 69, so that the coolant circulates and flows in the coolant tank 43, the second mixing cavity 27 and the second cooling plate 52. The heat generated by the motor 13 is transferred to the first fins 66, and the third cooling plates 58 are located between two adjacent first fins 66, so that the heat of the motor 13 can be taken away by the circulating coolant. Since the second annular part 53 is in annular sliding contact with the outer wall of the piston plate 25, the rotation of the piston plate 25 does not affect the communication between the inside of the piston plate 25 and the inside of the fourth connecting pipe 51.

[0066] Meanwhile, another part of the coolant in the second mixing cavity 27 is transported to the S-shaped channel 55 through the third connecting pipe 70, so that the coolant flows in the two fourth connecting pipes 51, and the coolant circulates and flows in the second mixing cavity 27 and the two fourth connecting pipes 51, thereby cooling the outside of the motor 13.

[0067] Meanwhile, the piston plate 25 moves axially to drive the second ring-shaped part 53 to move axially, the second ring-shaped part 53 moves axially to drive the two fourth connecting pipes 51 to move, the two fourth connecting pipes 51 move to drive the two U-shaped blocks 49 and the first sliding plates 50 to move, since one end of the first sliding plate 50 is in sliding contact with the side inclined surface of the guide block 54, the two first sliding plates 50 are guided by the two guide blocks 54 to move towards each other, so that the two first sliding plates 50 move towards each other, and the two second cooling plates 52 move towards each other, the two second cooling plates 52 move towards each other to drive the several pairs of third cooling plates 58 to move towards the motor 13, so that the second cooling plates 52 and the several third cooling plates 58 carry away the heat generated by the motor 13 by the cooling liquid flowing in the third cooling plates 58, and promote the heat dissipation effect of the second cooling assembly on the motor 13. Since the two cleaning parts 65 are in frictional contact with the adjacent two first fins 66 respectively, the third cooling plates 58 move to cooperate with the top rod 62 to be resisted by the two cleaning parts 65, so that one end of the top rod 62 moves in the third cooling plate 58. Since the two sides of one end of the top rod 62 are in sliding contact with the inclined surfaces of the two ends of the push rod 60 which move towards each other, one end of the top rod 62 moves in the third cooling plate 58 to push the two push rods 60 away from each other, the two push rods 60 move away from each other to drive the two second fins 59 to move away from each other, and the two second fins 59 move away from each other to contact with the adjacent two first fins 66. By using the two second fins 59 to move away from each other to contact with the adjacent two first fins 66, the heat generated by the motor 13 is transmitted to the third cooling plate 58 by the contact between the first fin 66 and the second fin 59, so that the cooling liquid in the third cooling plate 58 can circulate faster to carry away the heat. Therefore, the U-shaped block 49, the first sliding plate 50 and the second cooling plate 52 are used to drive the several third cooling plates 58 to move axially, so as to increase the cooling range of the second cooling assembly on the motor 13. Then, the second cooling plate 52 is used to drive the several third cooling plates 58 to move towards the motor 13, so as to carry away the heat generated by the motor 13 by the cooling liquid flowing in the second cooling plate 52 and the several third cooling plates 58, and promote the heat dissipation effect of the second cooling assembly on the motor 13. Finally, the two second fins 59 are used to move away from each other to contact with the adjacent two first fins 66, so as to transmit the heat generated by the motor 13 to the third cooling plate 58 by the contact between the first fin 66 and the second fin 59, so that the cooling liquid in the third cooling plate 58 can circulate faster to carry away the heat.

[0068] Finally, the third cooling plate 58 moves in contact with the cleaning piece 65, the third cooling plate 58 moves to push the two cleaning pieces 65 to move, so as to clean the surface of the first fin 66, so as to clean and remove the dust attached to the surface of the first fin 66, which is beneficial to maintain the heat transfer effect of the first fin 66, and is beneficial to maintain the rapid heat dissipation effect of the second cooling assembly on the motor 13. Therefore, the first cooling assembly is used to improve the air cooling heat dissipation effect of the motor 13; and then the second cooling assembly is used to water-cool the motor 13, which is beneficial to greatly improve the heat dissipation effect of the motor 13, ensure that it can still operate stably in a high-temperature environment, and prolong the service life.

[0069] The application discloses a new air exchange axial flow fan, through the setting of the movable ring 18, the piston plate 25 and the stirring assembly, the movable ring 18 drives the piston plate 25 to rotate, and the piston plate 25 drives the stirring assembly to rotate; the stirring assembly is used for stirring and mixing the cooling liquid and the viscosity reducer in the first mixing cavity 26 and the second mixing cavity 27 respectively, the viscosity reducer is used for reducing the flow resistance of the cooling liquid, so that the cooling liquid can flow faster to take away heat, and the heat dissipation effect of the motor 13 is promoted. Through the setting of the mounting block 28, the first stirring part 29, the second stirring part 31, the third stirring part 33 and the elastic part 34, the piston plate 25 drives the stirring assembly to move in the direction of the first mixing cavity 26, the stirring assembly moves axially to extrude and crush the particles in the cooling liquid, and the piston plate 25 drives the stirring assembly to rotate, so that the particles in the cooling liquid are ground and crushed. The second stirring part 31 is resisted by a side wall of the first mixing cavity 26, one end of the mounting block 28 slides in the first stirring part 29, and the mounting block 28 drives the top block 35 to move. Since one end of the top block 35 is in sliding contact with the inclined surfaces of the two ends of the two slide rods 32, the top block 35 drives the two slide rods 32 to move away from each other, and the two slide rods 32 drive the two third stirring parts 33 to move away from each other. The two third stirring parts 33 move away from each other to stretch the two elastic parts 34, so that the area of the stirring assembly in contact with the solution is expanded, the stirring and mixing effect of the solution is improved, the particles after grinding and crushing are dissolved, the particles and impurities are prevented from depositing on the fins of the radiator, the microchannels or the surface of the cold plate to form a heat insulation layer and hinder heat transfer. Finally, through the setting of the guide plate 37 and the first cooling plate 39, the axial flow fan 14 drives air to flow axially, so that the air enters the annular groove 38. The first cooling plate 39 has a V-shaped structure, so that the air is in full contact with the inner surface of the first cooling plate 39, and the air is preliminarily cooled. The air in the annular groove 38 moves to the space between the first cooling plate 39 and the annular groove 38 through the second through holes 41, and the air is sprayed out through the first through holes 40. At this time, the air passing through the first through holes 40 is secondarily cooled by the cooling liquid in the guide plate 37, so that the air is double-cooled, and the air-cooled heat dissipation effect of the motor 13 is improved. The movable ring 18 drives the guide plate 37 to rotate and move axially, so that the guide plate 37 rotates and moves axially, the cooled air is spirally sprayed out, the moving range of the cooled air is expanded, the air-cooled heat dissipation effect of the motor 13 is greatly improved, and the service life of the motor 13 is prolonged.

[0070] The axial flow fan for fresh air exchange of the present application, through the setting of the first fin 66, the second cooling plate 52 and the third cooling plate 58, part of the cooling liquid in the second mixing cavity 27 is delivered to the two fourth connecting pipes 51 through the inside of the piston plate 25, the cooling liquid in the fourth connecting pipe 51 is delivered to the first sliding plate 50 through the second annular piece 53, the cooling liquid in the first sliding plate 50 is delivered to the second cooling plate 52, the cooling liquid in the second cooling plate 52 is delivered to the several third cooling plates 58, the cooling liquid in the several third cooling plates 58 moves to the second cooling plate 52, the cooling liquid in the second cooling plate 52 is delivered to the cooling liquid tank 43 through the second telescopic connecting pipe 69, so as to make the cooling liquid circulate and flow in the cooling liquid tank 43, the second mixing cavity 27 and the second cooling plate 52. And the heat generated by the motor 13 is transferred to the several first fins 66, and the third cooling plate 58 is located between the adjacent two first fins 66, so that the heat of the motor 13 can be taken away by the circulating flow of the cooling liquid. Then through the setting of the first sliding plate 50, the fourth connecting pipe 51, the second cooling plate 52, the guide block 54 and the third cooling plate 58, the axial movement of the U-shaped block 49, the first sliding plate 50 and the second cooling plate 52 drives the axial movement of the several third cooling plates 58, so as to increase the cooling range of the second cooling assembly to the motor 13. Then the movement of the second cooling plate 52 drives the movement of the several third cooling plates 58 in the direction close to the motor 13, so that the heat generated by the motor 13 is taken away by the circulating flow of the cooling liquid in the second cooling plate 52 and the several third cooling plates 58, and the heat dissipation effect of the second cooling assembly to the motor 13 is promoted. Finally, through the setting of the second fin 59, the top rod 62 and the cleaning piece 65, the two second fins 59 are away from each other and contact with the adjacent two first fins 66, so that the heat generated by the motor 13 is transferred to the third cooling plate 58 through the contact of the first fin 66 and the second fin 59, and the cooling liquid in the third cooling plate 58 can circulate faster to take away the heat.

[0071] Embodiments of the present application are presented for the purpose of example and description, and are not exhaustive or limiting to the present application. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles and practical application of the present application, and to enable those of ordinary skill in the art to understand the present application in order to design various embodiments with various modifications for specific use.

Claims

1. An axial flow fan for fresh air exchange, characterized by: The utility model provides a kind of axial fan, including the axial fan body (10), the inside one end of the axial fan body (10) is equipped with support (15), motor (13) is installed on the support (15), the output of the motor (13) is equipped with rotating shaft (16), one end of the rotating shaft (16) is equipped with axial fan (14), the outer wall of the rotating shaft (16) is equipped with first cooling component, the outside of the motor (13) is equipped with second cooling component; The first cooling component includes a movable ring (18) and a sleeve (20), the movable ring (18) is sleeved on the outer wall of the rotating shaft (16), one end of the sleeve (20) is provided with a cylinder (24), the inside of the cylinder (24) is slidably provided with a piston plate (25), the piston plate (25) is provided with a plurality of stirring components on both sides; The stirring component includes a mounting block (28) and a first stirring piece (29), one end of the mounting block (28) is slidably connected with the inside of the first stirring piece (29), the first stirring piece (29) is symmetrically provided with two fixed blocks (30) on one side, a second stirring piece (31) is connected between one end of the two fixed blocks (30), a sliding rod (32) is slidably arranged on each of the two fixed blocks (30), a third stirring piece (33) is arranged on one end of each of the two sliding rods (32), and an elastic member (34) is connected between the two ends of the second stirring piece (31) and the two third stirring pieces (33); The sleeve (20) is connected between the outer wall of the sleeve (20) and the inner wall of the axial fan body (10), the inside of the cylinder (24) is divided into a first mixing cavity (26) and a second mixing cavity (27) by the piston plate (25), a first spring (36) is connected between one end of the mounting block (28) and the inside of the first stirring piece (29), a top block (35) is arranged on one end of the mounting block (28), the other end of the mounting block (28) is connected with one side of the piston plate (25), the top block (35) is slidably connected with the inclined surface of one end of each of the two sliding rods (32) on both sides, a cooling liquid tank (43) is arranged on the lower side of the inside of the axial fan body (10), a viscosity reducer tank (45) is arranged on the upper side of the inside of the axial fan body (10), a first connecting pipe (44) is connected between the cooling liquid tank (43) and the first mixing cavity (26) and the second mixing cavity (27), and a second connecting pipe (46) is connected between the viscosity reducer tank (45) and the first mixing cavity (26) and the second mixing cavity (27); The inner wall of the movable ring (18) is slidably connected with the outer wall of the rotating shaft (16), and the outer wall of the movable ring (18) is slidably connected with the inner wall of the sleeve (20). The outer wall of the rotating shaft (16) is provided with a spline (17), the inner wall of the movable ring (18) is provided with a spline groove (19), the spline (17) axially slides in the spline groove (19), the inner wall of the sleeve (20) is provided with a spiral slide groove (21) with a head and a tail in communication, the outer wall of one end of the movable ring (18) is provided with a sliding block (22), the sliding block (22) spirally slides in the spiral slide groove (21). The axial back-and-forth movement of the movable ring (18) can drive the axial back-and-forth movement of the piston plate (25), and the rotation of the movable ring (18) can drive the rotation of the piston plate (25).

2. The axial flow fan for fresh air exchange according to claim 1, characterized in that: The outer wall of one end of the movable ring (18) is provided with a guide vane (37), the guide vane (37) is provided with an annular groove (38), the annular groove (38) is provided with a first cooling plate (39), one end wall of the annular groove (38) is provided with a plurality of first through holes (40), the first cooling plate (39) is provided with a plurality of second through holes (41), and the cross section of the first cooling plate (39) is in a V-shaped structure.

3. The axial flow fan for fresh air exchange according to claim 2, characterized in that: The inner wall of the movable ring (18) is provided with a connecting channel (42) in communication with the first mixing cavity (26), the connecting channel (42) is in communication with the inside of the guide vane (37), the inside of the guide vane (37) is in communication with the inside of the first cooling plate (39), the outer wall of the guide vane (37) is annularly and slidably provided with a first annular member (67), the first annular member (67) is in communication with the inside of the guide vane (37), and the inside of the first annular member (67) is in communication with the cooling liquid tank (43) and is provided with a first telescopic connecting pipe (68).

4. The axial flow fan for fresh air exchange according to claim 1, characterized in that: The outer wall of the motor (13) is provided with a plurality of first fins (66) on both sides, the second cooling assembly comprises a frame body (47), the frame body (47) is fixed to the upper side of the support (15), the two side walls of the frame body (47) are respectively provided with a plurality of through openings (48), the two side walls of the frame body (47) are respectively slidably provided with a U-shaped block (49), the U-shaped block (49) is slidably provided with a first sliding plate (50), one end of the first sliding plate (50) is provided with a second cooling plate (52), the inner walls of the axial flow fan body (10) are respectively provided with a guide block (54) on both sides, the other end of the first sliding plate (50) is in sliding contact with the side slope of the guide block (54), one side of the second cooling plate (52) is provided with a plurality of third cooling plates (58), the two side walls of each third cooling plate (58) are respectively slidably provided with a push rod (60), and the mutually far ends of the two push rods (60) are respectively provided with a second fin (59).

5. The axial flow fan for fresh air exchange according to claim 4, characterized in that: Two ends of the U-shaped block (49) are respectively slidably provided with a second sliding plate (56), one end of the second sliding plate (56) is connected with the second cooling plate (52), the other end of the second sliding plate (56) is connected with the inside of the U-shaped block (49) and is provided with a second spring (57), both side walls of the frame body (47) are provided with an S-shaped channel (55), one end of the two S-shaped channels (55) communicates with each other, and the other end of the two S-shaped channels (55) is respectively provided with a third connecting pipe (70) and communicates with the second mixing cavity (27).

6. The axial flow fan for fresh air exchange according to claim 4, characterized in that: Each of the third cooling plates (58) is located between two adjacent first fins (66), and one side of each of the two second fins (59) close to each other is connected with the two sides of the third cooling plate (58) and is provided with a third spring (61), one end of the third cooling plate (58) is slidably provided with a top rod (62), the other end of the top rod (62) is slidably connected with the inclined surfaces of one end of the two push rods (60), the other end of the top rod (62) is provided with a cleaning piece (65) on both sides, one end of the cleaning piece (65) is frictionally connected with one side of the first fin (66), and the outer wall of the top rod (62) is provided with a movable plate (63). One side of the movable plate (63) is connected with the inside of the third cooling plate (58) and is provided with a fourth spring (64).

7. The axial flow fan for fresh air exchange according to claim 4, characterized in that: The outer wall of the piston plate (25) is annularly slidably provided with a second annular piece (53), the outer wall of the second annular piece (53) is connected with one side of the two U-shaped blocks (49) and is provided with a fourth connecting pipe (51), one end of the fourth connecting pipe (51) communicates with the inside of the piston plate (25), the inside of the piston plate (25) communicates with the second mixing cavity (27), the other end of the fourth connecting pipe (51) is connected with the inside of the first sliding plate (50) and is provided with a second annular piece (53), the inside of the first sliding plate (50) communicates with the inside of the second cooling plate (52), the inside of the second cooling plate (52) communicates with the insides of the third cooling plates (58), and the inside of the second cooling plate (52) is provided with a second telescopic connecting pipe (69) and communicates with the cooling liquid tank (43).

8. The axial flow fan for fresh air exchange according to claim 7, characterized in that: One end of the axial flow fan body (10) is provided with a filter screen (11), the other end of the axial flow fan body (10) is provided with a protective screen (12), both sides of the outer wall of the cylinder (24) are respectively provided with an avoiding opening (71), the avoiding opening (71) is slidably provided with a baffle (72), and the baffle (72) is connected with the fourth connecting pipe (51).

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