CN218495146U

CN218495146U - Fresh air conditioner

Info

Publication number: CN218495146U
Application number: CN202222529581.0U
Authority: CN
Inventors: 于兆志; 郝红波; 徐永伟
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-02-17
Anticipated expiration: 2032-09-23

Abstract

The utility model relates to an air conditioning technology field specifically provides a new trend air conditioner, aims at adding new wind power opportunity incremental cost, noise rise scheduling problem in the air conditioner among the solution prior art. Mesh for this reason, the utility model discloses a new trend fan sets up in the tip that driving motor was kept away from to the air supply fan, and transmission speed change mechanism is connected with air supply fan and new trend fan respectively, can drive the new trend fan through transmission speed change mechanism and rotate when driving motor drive air supply fan rotates. The utility model discloses a transmission speed change mechanism is connected with air supply fan and new trend fan respectively to when the new trend air conditioner operation, only just can realize the rotation of two fans of air supply fan and new trend fan simultaneously through a driving motor's operation, compare in setting up a driving motor for air supply fan and new trend fan respectively and compare, reduced the part quantity in the new trend air conditioner, the cost is reduced has reduced the noise, has effectively promoted user experience.

Description

Fresh air conditioner

Technical Field

The utility model relates to an air conditioning technology field specifically provides a new trend air conditioner.

Background

In order to reach the desired indoor temperature as quickly as possible and to save electric power during the operation of the air conditioner, the doors and windows are usually closed. Therefore, after the air conditioner operates for a period of time, the air in the indoor space becomes dirty, the concentration of carbon dioxide in the air is increased, the oxygen content is reduced, and the physical and psychological health of people is seriously affected. Therefore, the problem is solved by configuring a fresh air module in the air conditioner at present, the fresh air module generally comprises a fresh air fan and a fresh air motor for driving the fresh air fan, the fresh air fan runs under the driving of the fresh air motor, and outdoor fresh air is introduced into the indoor space to improve the air quality of the indoor space.

However, the cost of the air conditioner is increased by configuring a fresh air motor for the fresh air fan independently, the arrangement of the fresh air motor can increase the internal components of the air conditioner, and the wiring complexity and the assembly workload are increased. In addition, can produce great noise when new trend motor operation, reduce user experience.

Accordingly, there is a need in the art for a new solution to the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving above-mentioned technical problem, promptly, add new wind power opportunity incremental cost, noise increase scheduling problem in solving prior art air conditioner.

The utility model provides a new trend air conditioner, new trend air conditioner include the casing and set up in driving motor and air supply fan in the casing, driving motor sets to can drive air supply fan rotates, new trend air conditioner still including set up in new trend module in the casing, new trend module includes new trend fan and transmission speed change mechanism, the new trend fan sets to can introduce outdoor new trend to the interior space when rotating, the new trend fan set up in air supply fan keeps away from driving motor's tip, transmission speed change mechanism respectively with air supply fan with the new trend fan is connected the driving motor drive can pass through when air supply fan rotates transmission speed change mechanism drives the new trend fan rotates.

In the preferred technical scheme of above-mentioned new trend air conditioner, transmission speed change mechanism include the gear assembly and with first connecting axle and second connecting axle that the gear assembly is connected, first connecting axle is kept away from the one end of new trend fan with air supply fan's pivot is connected, the second connecting axle is kept away from air supply fan's one end with new trend fan's pivot is connected.

In the preferable technical scheme of the fresh air conditioner, the gear assembly comprises a first gear and a second gear which are meshed with each other, the first connecting shaft is connected with the first gear, and the second connecting shaft is connected with the second gear.

In the preferable technical scheme of the fresh air conditioner, the radial size of the first gear is larger than that of the second gear.

In the preferred technical scheme of above-mentioned fresh air conditioner, transmission speed change mechanism still includes the casing, first gear with the second gear set up in the casing, be provided with first through-hole and second through-hole on two relative lateral walls that set up of casing respectively, first connecting axle passes behind the first through-hole with first gear connection, the second connecting axle passes behind the second through-hole with second gear connection.

In the preferred technical scheme of above-mentioned fresh air conditioner, transmission speed change mechanism still includes first bearing and second bearing, first bearing sets up in the casing correspond to the position of first through-hole, the second bearing sets up in the casing correspond to the position of second through-hole, when assembling, first connecting axle wears to locate first bearing, the second connecting axle wears to locate the second bearing.

In the preferred technical scheme of above-mentioned new trend air conditioner, be provided with first limit structure on the outer wall of first connecting shaft, be provided with first perforation on the first gear, first connecting shaft passes when first perforation, through first limit structure can make first connecting shaft with first gear fixed connection.

In the preferable technical scheme of the fresh air conditioner, the transmission speed change mechanism further comprises a third bearing, the third bearing is arranged on the opposite side of the side wall of the first through hole, the end part of the first connecting shaft far away from the air supply fan penetrates through the third bearing after penetrating through the first gear.

In the preferable technical scheme of the fresh air conditioner, the outer wall of the second connecting shaft is provided with a second limiting structure, the second gear is provided with a second through hole, when the second connecting shaft penetrates through the second through hole, the second connecting shaft and the second gear can be fixedly connected through the second limiting structure.

In the preferable technical scheme of the fresh air conditioner, the transmission speed change mechanism further comprises a fourth bearing, the fourth bearing is arranged on the opposite side of the side wall of the second through hole, the end part of the air supply fan, far away from the second connecting shaft, penetrates through the fourth bearing after passing through the second gear.

The technical scheme of the utility model among, new trend air conditioner includes the casing and sets up driving motor and the air supply fan in this casing, and this driving motor sets to and can drives the air supply fan and rotate, just so can send the air in the casing into to the interior space through the air supply fan, and then reaches the purpose of adjustment interior space's air quality. This new trend air conditioner is still including setting up the new trend module in the casing, and this new trend module includes new trend fan and transmission speed change mechanism, can introduce outdoor new trend to the indoor space when the new trend fan sets to the rotation, and the new trend fan sets up the tip that driving motor was kept away from to air supply fan, and transmission speed change mechanism is connected with air supply fan and new trend fan respectively, when driving motor drive air supply fan rotates, can drive the new trend fan through transmission speed change mechanism and rotate. Through the arrangement mode, when the fresh air conditioner operates, the rotation of the air supply fan and the rotation of the fresh air fan can be realized simultaneously only through the operation of one driving motor, and the fresh air can be introduced to improve the air quality of the indoor space while the temperature of the indoor space is adjusted. And, compare in setting up a driving motor for air supply fan and new trend fan respectively and compare, reduce the part quantity in the new trend air conditioner, the cost is reduced also because of having reduced a driving motor's noise and reduced the whole noise of new trend air conditioner simultaneously, has effectively promoted user experience.

Furthermore, the transmission speed change mechanism comprises a gear assembly, a first connecting shaft and a second connecting shaft, the first connecting shaft and the second connecting shaft are respectively connected with the gear assembly, one end of the first connecting shaft, far away from the fresh air fan, is connected with a rotating shaft of the air supply fan, and one end of the second connecting shaft, far away from the air supply fan, is connected with the rotating shaft of the fresh air fan. Therefore, the transmission speed change mechanism is connected with the air supply fan and the fresh air fan respectively, and when the air supply fan rotates, the first connecting shaft is driven to rotate, so that the second connecting shaft is driven to rotate, and the fresh air fan is driven to rotate.

Further, the gear assembly comprises a first gear and a second gear which are meshed with each other, the first connecting shaft is connected with the first gear, and the second connecting shaft is connected with the second gear. Therefore, when the air supply fan rotates, the first connecting shaft is driven to rotate, the first connecting shaft drives the first gear to rotate so as to drive the second gear meshed with the first gear to rotate, and the second gear drives the second connecting shaft to rotate so as to drive the fresh air fan to rotate.

Furthermore, the radial dimension of the first gear is larger than that of the second gear, so that when the first gear drives the second gear to rotate, the rotating speed of the second gear is also larger than that of the first gear, and therefore the rotating speed of the fresh air fan is larger than that of the air supply fan, and more fresh air can be introduced through the fresh air fan.

Furthermore, the transmission speed change mechanism further comprises a shell, the first gear and the second gear are arranged in the shell, a first through hole and a second through hole are formed in two opposite side walls of the shell respectively, the first connecting shaft penetrates through the first through hole and then is connected with the first gear, and the second connecting shaft penetrates through the second through hole and then is connected with the second gear. Just so set up first gear and second gear in the casing, isolated first gear and second gear and the interior complicated environment of casing, avoid the deposit of impurity such as dust.

Further, the transmission speed change mechanism further comprises a first bearing and a second bearing, the first bearing is arranged in the shell and corresponds to the first through hole, and the second bearing is arranged in the shell and corresponds to the second through hole. When the bearing is assembled, the first connecting shaft penetrates through the first bearing, and the second connecting shaft penetrates through the second bearing. On the one hand can not influence its when first connecting axle and second connecting axle pass first through-hole and second through-hole like this and rotate, on the other hand can also play a supporting role to first connecting axle and second connecting axle respectively through first bearing and second bearing to can drive the new trend fan through transmission speed change mechanism better when the air supply fan rotates and rotate.

Drawings

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, using a wall-mounted fresh air conditioner as an example, in which:

fig. 1 is a structural view of a wall-mounted air conditioner according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a drawing showing the cross flow fan, the transmission mechanism and the axial flow fan according to an embodiment of the present invention;

FIG. 4 is an exploded view of a cross flow fan and a transmission gear mechanism coupled together by a coupling according to an embodiment of the present invention;

fig. 5 is an exploded view (one) of a transmission shifting mechanism according to an embodiment of the present invention;

fig. 6 is an exploded view of a transmission shifting mechanism according to an embodiment of the present invention;

fig. 7 is an enlarged view of a portion B in fig. 6.

List of reference numerals:

1. a housing; 11. an installation position; 12. a mounting member; 13. a partition plate; 2. a cross-flow fan; 21. a second rotating shaft; 3. an axial flow fan; 31. a hub; 32. a blade; 4. a transmission speed change mechanism; 41. a gear assembly; 411. a first gear; 4111. a first through hole; 4112. a first notch; 412. a second gear; 4121. a second perforation; 4122. a second recess; 42. a first connecting shaft; 421. a first limit structure; 4211. a first boss; 4212. a first bump; 4213. a first card slot; 43. a second connecting shaft; 431. a second limit structure; 4311. a second boss; 4312. a second bump; 4313. a second card slot; 44. a housing; 441. a first mounting structure; 4411. a first bottom wall; 44111. a first through hole; 4412. a first annular wall; 442. a second mounting structure; 4421. a second bottom wall; 44211. a second through hole; 4422. a second annular wall; 443. a third mounting structure; 4431. a third bottom wall; 44311. a third through hole; 4432. a third annular wall; 444. a fourth mounting structure; 4441. a fourth bottom wall; 44411. a fourth via hole; 4442. a fourth annular wall; 45. a first bearing; 46. a second bearing; 47. a third bearing; 48. a fourth bearing; 49. a first clamping piece; 410. a second clamping piece; 5. a coupling.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. Although the present embodiment is described with reference to a wall-mounted air conditioner, the present invention can also be applied to other air conditioners having a fresh air module, such as a ceiling air conditioner, a cabinet air conditioner, and the like.

It should be noted that in the description of the present invention, the terms "left", "right", "inside", "outside", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.

The air conditioner that has the new trend function at present usually needs to dispose a driving motor for the new trend fan alone, nevertheless can cause the cost-push of air conditioner like this to, the setting up of new trend motor can increase the air conditioner internals and increase, the complexity of increase wiring and the work load during the equipment. In addition, can produce great noise when new trend motor operation, reduce user experience. Therefore, the utility model provides a new trend air conditioner, this new trend air conditioner can drive the new trend fan through transmission speed change mechanism and rotate when driving motor drive air supply fan rotates, just so can realize the rotation of two fans of air supply fan and new trend fan simultaneously through a driving motor's operation to can be on the basis that does not influence new trend air conditioner's basic function, effectively reduce cost, noise reduction.

The following explains possible implementation manners of the fresh air conditioner of the present invention with reference to fig. 1 to 7.

As shown in fig. 1 to 4 and in the orientation shown in fig. 1, the wall-mounted air conditioner includes a casing 1, and a driving motor (not shown) and a blower fan which are disposed in the casing 1, wherein an air inlet and an air outlet are provided in the casing 1, the blower fan is a cross flow fan 2, and the cross flow fan 2 is disposed along a longitudinal direction (substantially, a left-right direction shown in fig. 1) of the casing 1. The driving motor is arranged on the right side of the cross flow fan 2, a first rotating shaft is arranged on the right side of the cross flow fan 2, a second rotating shaft 21 is arranged on the left side of the cross flow fan, and the first rotating shaft is connected with a power output end of the driving motor. When the driving motor runs, the power output end of the driving motor is connected with the first rotating shaft to drive the cross flow fan 2 to rotate, air in the indoor space enters the machine shell 1 through the air inlet under the action of the cross flow fan 2, and the air is processed and then returns to the indoor space through the air outlet, so that the purpose of adjusting the air quality of the indoor space is achieved. This wall-hanging air conditioner still includes the new trend module, and this new trend module setting is being close to the left position of casing 1, and it includes new trend fan, new trend pipe (not shown) and transmission speed change mechanism 4, and the new trend fan is when rotating, and outdoor new trend can enter into casing 1 and then enter into the interior space via the new trend pipe to reach the purpose that improves the air quality of interior space. The fresh air fan is an axial flow fan 3, and is disposed at an end (approximately, a left end in fig. 1) of the cross flow fan 2 far away from the driving motor, and the axial flow fan 3 includes a hub 31 and a plurality of blades 32 distributed along an axial direction of the hub 31. The transmission speed change mechanism 4 is respectively connected with the second rotating shaft 21 of the cross flow fan 2 and the hub 31 of the axial flow fan 3, so that the connection between the second rotating shaft 21 and the hub 31 is realized, when the drive motor drives the cross flow fan 2 to rotate, the hub 31 can be driven to rotate, the blades 32 are driven to rotate, and the rotation of the axial flow fan 3 is realized. Through the arrangement mode, when the wall-mounted air conditioner runs, the rotation of the two fans of the cross flow fan 2 and the axial flow fan 3 can be realized simultaneously only through the running of one driving motor, and fresh air can be introduced to improve the air quality of the indoor space while the temperature of the indoor space is adjusted. And, compare in respectively for 2 and axial fan 3 sets up a driving motor of cross flow fan compare, reduced the part quantity in the wall-hanging air conditioner, the cost is reduced, also reduced the whole noise of wall-hanging air conditioner because of having reduced a driving motor's noise simultaneously, effectively promoted user experience.

It should be noted that the fresh air module may also be disposed at a position close to the right side of the casing 1, in which case, the power output end of the driving motor is connected to the second rotating shaft 21 of the cross flow fan 2. Of course, the fresh air module may be disposed at other possible positions such as the upper side or the lower side of the casing 1.

Obviously, the air supply fan may also be an axial flow fan 3, a centrifugal fan, etc., and the fresh air fan may also be a cross flow fan 2, a centrifugal fan, etc.

As shown in fig. 1 to 5 and in the orientation shown in fig. 1, the transmission mechanism 4 comprises a gear assembly 41, a first connecting shaft 42 and a second connecting shaft 43, the first connecting shaft 42 and the second connecting shaft 43 being of substantially cylindrical configuration, the gear assembly 41 comprising a first gear 411 and a second gear 412 meshing with each other. A mounting position 11 is provided in the casing 1 at a position close to the left end of the cross flow fan 2, and a mounting member 12 is fitted around the outer side of the second rotating shaft 21 of the cross flow fan 2, and the mounting member 12 is provided on the mounting position 11 in a substantially cylindrical configuration. A partition plate 13 is arranged between the left end of the cross flow fan 2 and the axial flow fan 3, and a through hole is arranged on the partition plate 13. The first end of the first connecting shaft 42 (which is generally the right end of the first connecting shaft 42 as viewed in FIG. 1) is generally hexagonally shaped in cross-section. The wall-mounted air conditioner further includes a coupling 5, and the coupling 5 has a substantially cylindrical structure, an outer ring of a cross section of which is substantially circular, and an inner ring of which is substantially hexagonal. The cross section of the second rotating shaft 21 is approximately hexagonal structure, the second rotating shaft 21 is inserted into the coupling 5 from the right end of the coupling 5 after passing through the mounting part 12, the left end of the coupling 5 is connected with the first end of the first connecting shaft 42 after passing through the through hole, when the cross flow fan is mounted, the first end of the first connecting shaft 42 is inserted into the coupling 5 from the left end of the coupling 5, and thus the second rotating shaft 21 of the cross flow fan 2 is connected with the first end of the first connecting shaft 42 through the coupling 5. A second end of the first connecting shaft 42 (approximately the left end of the first connecting shaft 42 shown in fig. 1) is connected with the first gear 411. The surface of the second connecting shaft 43 near the first end thereof (approximately, the left end of the second connecting shaft 43 shown in fig. 1) is provided with a flat surface, and the center of the hub 31 of the axial flow fan 3 is provided with a mounting hole (not shown) which is matched with the position where the second connecting shaft 43 is provided with the flat surface, so that the second connecting shaft 43 can be connected with the hub 31 of the axial flow fan 3. A second end of the second link shaft 43 (substantially a right end of the second link shaft 43 shown in fig. 1) is linked with the second gear 412. Therefore, the transmission speed-changing mechanism 4 is connected with the cross flow fan 2 and the axial flow fan 3 respectively, when the cross flow fan 2 rotates, the first connecting shaft 42 is driven to rotate, the first connecting shaft 42 drives the first gear 411 to rotate so as to drive the second gear 412 meshed with the first gear to rotate, and the second gear 412 drives the second connecting shaft 43 to rotate so as to drive the axial flow fan 3 to rotate. Obviously, the first end of the first connecting shaft 42 and the coupling 5, the first end of the second connecting shaft 43 and the hub 31 of the axial flow fan 3 may be connected by other possible means such as adhesion, screw joint, etc.

It should be noted that the gear assembly 41 may also include only one gear, in which case, the second end of the first connecting shaft 42 is connected to the right side surface of the gear, and the second end of the second connecting shaft 43 is connected to the left side surface of the gear, so that the transmission speed change mechanism 4 can be connected to the cross flow fan 2 and the axial flow fan 3 respectively. Of course, the gear assembly 41 may also include a greater number of gears, three, four, etc. Without departing from the principle of the present application, a person skilled in the art can flexibly select a specific arrangement manner of the gear assembly 41 according to a specific application scenario, as long as the transmission speed change mechanism 4 can be connected to the cross flow fan 2 and the axial flow fan 3 respectively.

Of course, the transmission mechanism 4 may be provided in other manners, for example, the transmission mechanism 4 only includes the coupling 5, the hub 31 of the axial flow fan 3 extends toward the axial flow fan 2 to form an extending end, one end of the coupling 5 is connected to the extending end, and the other end is connected to the second rotating shaft 21 of the axial flow fan 2, so that when the axial flow fan 2 rotates, the axial flow fan 3 may also be driven to rotate by the sequential connection of the second rotating shaft 21, the coupling 5 and the extending end. On the premise of not deviating from the principle of the present application, a person skilled in the art may flexibly select a specific setting form of the transmission speed change mechanism 4 according to a specific application scenario, as long as the axial flow fan 3 can be driven to rotate by the transmission speed change mechanism 4 when the cross flow fan 2 rotates.

As shown in fig. 1 and 5, the radial dimension of the first gear 411 is greater than the radial dimension of the second gear 412, so that when the second gear 412 is driven by the first gear 411 to rotate, the rotating speed of the second gear 412 is greater than that of the first gear 411, so that the rotating speed of the axial flow fan 3 is greater than that of the cross flow fan 2, and thus more fresh air can be introduced through the axial flow fan 3, and the air quality of the indoor space is better improved. It should be noted that, the ratio of the radial dimensions of the first gear 411 and the second gear 412 may be determined according to the required fresh air volume, and after the model of the axial flow fan 3 is determined, the fresh air volume corresponds to the rotation speed of the axial flow fan 3, so that the rotation speed of the axial flow fan 3 can be determined, and further the rotation speed ratio of the axial flow fan 3 to the cross flow fan 2 can be determined, so that the ratio of the radial dimensions of the first gear 411 and the second gear 412 can be determined. Obviously, the radial dimension of the first gear 411 may also be smaller than or equal to the radial dimension of the second gear 412.

As shown in fig. 1 and 5 and in the orientation shown in fig. 1, the transmission mechanism 4 further includes a housing 44, the housing 44 being of a generally small-top, large-bottom drop-like configuration, with a first gear 411 disposed at a lower position within the housing 44 and a second gear 412 disposed at an upper position within the housing 44. The first connecting shaft 42 passes through the right side wall of the housing 44 and is connected to the first gear 411, and the second connecting shaft 43 passes through the left side wall of the housing 44 and is connected to the second gear 412. Thus, the first gear 411 and the second gear 412 are disposed in the housing 44, and the first gear 411 and the second gear 412 are isolated from the complex environment in the cabinet 1, thereby preventing deposition of impurities such as dust. Obviously, the transmission 4 may not include the housing 44.

As shown in fig. 1, 4-7 and in the orientation shown in fig. 1, the transmission mechanism 4 further includes a first bearing 45 and a second bearing 46, both the first bearing 45 and the second bearing 46 being ball bearings. A first mounting structure 441 is formed by outwardly protruding a position below the right side wall of the housing 44, the first mounting structure is substantially composed of a first bottom wall 4411 and a first annular wall 4412 arranged along the circumferential direction of the first bottom wall 4411, the first annular wall 4412 is connected with the right side wall of the housing 44, the first bottom wall 4411 is substantially circular, a first through hole 44111 is arranged in the center of the first bottom wall 4411, a first bearing 45 is arranged at the first mounting structure 441, when the first bearing 45 is mounted, the center line of the first through hole 44111 coincides with the center line of the first through hole, and a first connecting shaft 42 penetrates through the first bearing 45. A second mounting structure 442 is formed by outwardly protruding a position on the left side wall of the housing 44, the second mounting structure 442 is substantially composed of a second bottom wall 4421 and a second annular wall 4422 arranged along the circumferential direction of the second bottom wall 4421, the second annular wall 4422 is connected with the left side wall of the housing 44, the second bottom wall 4421 is substantially circular, a second through hole 44211 is arranged in the center of the second bottom wall 4421, a second bearing 46 is arranged at the second mounting structure 442, when the second bearing 46 is mounted, the center line of the second through hole 44211 is overlapped, and the second connecting shaft 43 is inserted into the second bearing 46. When assembled, the first bearing 45 is located between the first connecting shaft 42 and the first annular wall 4412, and the second bearing 46 is located between the second connecting shaft 43 and the second annular wall 4422. Therefore, on one hand, when the first connecting shaft 42 and the second connecting shaft 43 pass through the first through hole 44111 and the second through hole 44211, the rotation of the first connecting shaft 42 and the second connecting shaft 43 cannot be influenced, and on the other hand, the first connecting shaft 42 and the second connecting shaft 43 can be supported by the first bearing 45 and the second bearing 46 respectively, so that the axial flow fan 3 can be driven to rotate better through the transmission speed change mechanism 4 when the cross flow fan 2 rotates. It should be noted that the first and second mounting

structures

441 and 442 may not be formed on the right and left side walls of the housing 44, in this case, the first and second through

holes

44111 and 44211 may be directly disposed on the right and left side walls of the housing 44, and the first and

second bearings

45 and 46 are directly disposed at the first and second through

holes

44111 and 44211. Obviously, the transmission mechanism 4 may not include the first bearing 45 and the second bearing 46, in this case, a certain gap may be provided between the first connecting shaft 42 and the second connecting shaft 43 and the first through hole 44111 and the second through hole 44211, or a cushion may be provided between the first connecting shaft 42 and the first through hole 44111 and between the second connecting shaft 43 and the second through hole 44211.

As shown in fig. 1, 4 to 7 and according to the orientation shown in fig. 1, a first limiting structure 421 is disposed on an outer wall of the first connecting shaft 42, the first limiting structure 421 includes a first boss 4211, a first protrusion 4212 and a first locking groove 4213 which are sequentially disposed along a left-to-right direction along an axial direction of the first connecting shaft 42, the first boss 4211 is substantially an annular boss distributed along a circumferential direction of the first connecting shaft 42, the first protrusion 4212 is substantially an elongated structure disposed along the axial direction of the first connecting shaft 42, and the first locking groove 4213 is substantially an annular groove disposed along the circumferential direction of the first connecting shaft 42. The first gear 411 is centrally provided with a first through hole 4111, and the first through hole 4111 is provided with a first recess 4112. The derailleur 4 further comprises a first stop member 49, the first stop member 49 having a substantially arc-shaped configuration. When installing first connecting axle 42 to first gear 411, make first lug 4212 aim at first notch 4112, promote first connecting axle 42 from a left side to the right side and make the first end of first connecting axle 42 pass first perforation 4111, offset until first boss 4211 and the left surface of first gear 411, when having installed, first lug 4212 card is located first notch 4112, then locates first recess with first card device 49 card, just so can make first connecting axle 42 realize with first gear 411's fixed connection. Thus, when the cross flow fan 2 drives the first connecting shaft 42 to rotate, the first connecting shaft 42 can further drive the first gear 411 to rotate. It should be noted that a groove may be provided on an outer wall of the first connecting shaft 42, and an insertion block that fits in the groove may be provided at the first through hole 4111. Of course, the first connecting shaft 42 and the first gear 411 may be connected by other possible connecting methods such as bonding, screwing, etc., or may be integrally formed.

As shown in fig. 1, 4 to 7, the transmission mechanism 4 further includes a third bearing 47, and the third bearing 47 is a ball bearing. A third mounting structure 443 is formed to protrude outward from the left side wall of the housing 44 at a position opposite to the first through hole 44111, the third mounting structure 443 is substantially composed of a third bottom wall 4431 and a third annular wall 4432 arranged along the circumferential direction of the third bottom wall 4431, the third annular wall 4432 is connected to the left side wall of the housing 44, the third bottom wall 4431 is substantially circular, a third through hole 44311 is arranged at the center of the third bottom wall 4431, and a third bearing 47 is arranged at the third mounting structure 443, that is, the third bearing 47 is arranged on the left side wall of the housing 44, that is, the third bearing 47 is arranged on the opposite side of the side wall of the housing 44 where the first bearing 45 is arranged. The end of the first connecting shaft 42 remote from the cross flow fan 2 (approximately the second end of the first connecting shaft 42, the left end of the first connecting shaft 42 shown in fig. 1) is inserted through the third bearing 47. When assembled, the third bearing 47 is located between the first connecting shaft 42 and the first annular wall 4412, and the second end of the first connecting shaft 42 extends into the third through hole 44311. When the cross flow fan 2 rotates the first connection shaft 42, the first connection shaft 42 can rotate freely in the third bearing 47. With this arrangement, on the one hand, the rotation of the first connecting shaft 42 is not affected, and on the other hand, the first connecting shaft 42 can be supported, so that the axial fan 3 can be better driven to rotate when the axial fan 2 rotates. It should be noted that the third mounting structure 443 may not be formed on the left side wall of the housing 44, and in this case, the third through hole 44311 may be directly disposed on the left side wall of the housing 44. Obviously, the transmission 4 may not include the third bearing 47, and in this case, a cushion may be provided between the second end of the first connecting shaft 42 and the third through hole 44311. Of course, the second end of the first connecting shaft 42 may not extend to the left side wall of the housing 44, in which case, the third through hole 44311 does not need to be formed on the left side wall of the housing 44.

As shown in fig. 1, 4 to 7 and according to the orientation shown in fig. 1, a second limiting structure 431 is disposed on an outer wall of the second connecting shaft 43, the second limiting structure 431 includes a second boss 4311, a second protrusion 4312 and a second locking groove 4313 which are sequentially disposed along an axial direction of the second connecting shaft 43 from right to left, the second boss 4311 is substantially an annular boss distributed along a circumferential direction of the second connecting shaft 43, the second protrusion 4312 is substantially an elongated structure disposed along the axial direction of the second connecting shaft 43, and the second locking groove 4313 is substantially an annular groove disposed along the circumferential direction of the second connecting shaft 43. The second gear 412 is centrally provided with a second through hole 4121, and the second through hole 4121 is provided with a second notch 4122. The transmission 4 further includes a second engaging member 410, and the second engaging member 410 has a substantially arc-shaped configuration. When the second connecting shaft 43 is mounted to the second gear 412, the second protrusion 4312 is aligned with the second notch 4122, the second connecting shaft 43 is pushed from right to left, so that the first end of the second connecting shaft 43 passes through the second through hole 4121, until the second protrusion 4311 abuts against the right side surface of the second gear 412, when the second connecting shaft 43 is mounted, the second protrusion 4312 is clamped in the second notch 4122, and then the second clamping member 410 is clamped in the second groove, so that the second connecting shaft 43 can be fixedly connected to the second gear 412. When the cross flow fan 2 operates, the first connecting shaft 42 can be driven to rotate so as to drive the first gear 411 to rotate, the first gear 411 drives the second gear 412 meshed with the first gear to rotate, and then the second connecting shaft 43 is driven to rotate, so that the axial flow fan 3 is driven to rotate, and outdoor fresh air can be introduced into the indoor space through the axial flow fan 3 so as to improve the air quality of the indoor space. Note that, a groove may be provided in the outer wall of the second connecting shaft 43, and an insertion block that fits the groove may be provided in the second through hole 4121. Of course, the second connecting shaft 43 and the second gear 412 may be connected by other possible connecting methods such as bonding, screwing, or the like, or may be integrally formed.

As shown in fig. 1, 4 to 7, the transmission mechanism 4 further includes a fourth bearing 48, and the fourth bearing 48 is a ball bearing. A fourth mounting structure 444 is formed on the right side wall of the housing 44 in a protruding manner at a position opposite to the second through hole 44211, the fourth mounting structure 444 is substantially composed of a fourth bottom wall 4441 and a fourth ring wall 4442 arranged along the circumferential direction of the fourth bottom wall 4441, the fourth ring wall 4442 is connected to the right side wall of the housing 44, the fourth bottom wall 4441 is substantially circular, a fourth through hole 44411 is arranged in the center of the fourth bottom wall 4441, and the fourth bearing 48 is arranged at the fourth mounting structure 444, that is, the fourth bearing 48 is arranged on the right side wall of the housing 44, that is, on the opposite side of the side wall of the housing 44 provided with the second bearing 46. An end portion of the second connecting shaft 43 remote from the axial flow fan 3 (approximately a second end of the second connecting shaft 43, a right end of the second connecting shaft 43 shown in fig. 1) is inserted through the fourth bearing 48. When assembled, the fourth bearing 48 is located between the second connecting shaft 43 and the second annular wall 4422, the second end of the second connecting shaft 43 extends into the fourth through hole 44411, and the second connecting shaft 43 can rotate freely in the fourth bearing 48. Through such an arrangement, on the one hand, the rotation of the second connecting shaft 43 is not affected, and on the other hand, the second connecting shaft 43 can be supported, so that the rotation of the axial flow fan 3 can be better ensured. It should be noted that the fourth mounting structure 444 may not be formed on the right side wall of the housing 44, and in this case, the fourth through hole 44411 may be directly disposed on the right side wall of the housing 44. Obviously, the transmission shift mechanism 4 may not include the fourth bearing 48, and in this case, a cushion may be provided between the second end of the second connecting shaft 43 and the fourth through hole 44411. Of course, the second end of the second connecting shaft 43 may not extend to the right side wall of the housing 44, in which case, the fourth through hole 44411 does not need to be disposed on the right side wall of the housing 44.

The first bearing 45, the second bearing 46, the third bearing 47, and the fourth bearing 48 may be other types of bearings such as a slide bearing, a knuckle bearing, and a deep groove ball bearing.

In conclusion, the utility model discloses an among the preferred technical scheme, through the tip of keeping away from driving motor at cross flow fan 2 with axial fan 3 setting, transmission speed change mechanism 4 is connected with axial fan 3 and cross flow fan 2 respectively, when wall-hanging air conditioner moves like this, only the operation through a driving motor just can realize the rotation of two fans of cross flow fan 2 and axial fan 3 simultaneously, compare in respectively for cross flow fan 2 and axial fan 3 set up a driving motor and compare, the part quantity in the wall-hanging air conditioner has been reduced, the cost is reduced, the noise is reduced, user experience has effectively been promoted. Through the arrangement of the first gear 411 and the second gear 412 which are meshed with each other, the first connecting shaft 42 respectively connected with the first gear 411 and the cross-flow fan 2, the second connecting shaft 43 respectively connected with the second gear 412 and the axial flow fan 3, and the radial size of the first gear 411 is larger than that of the second gear 412, the first connecting shaft 42 is driven to rotate when the cross-flow fan 2 rotates, the first gear 411 is driven to rotate, the second gear 412 meshed with the first gear 411 is driven to rotate by the first gear 411, and the second connecting shaft 43 is driven to rotate, so that the axial flow fan 3 is driven to rotate. And the radial size of the first gear 411 is larger than that of the second gear 412, so that the rotating speed of the axial flow fan 3 is higher than that of the cross flow fan 2, and more fresh air can be introduced to improve the air quality of the indoor space. The transmission speed-changing mechanism 4 comprises a shell 44, a first bearing 45, a second bearing 46, a third bearing 47, a fourth bearing 48, a first limit structure arranged on the outer wall of the first connecting shaft 42, and a second limit structure arranged on the outer wall of the second connecting shaft 43, so that the first connecting shaft 42 is fixedly connected with the first gear 411 and the second connecting shaft 43 is fixedly connected with the second gear 412, and the axial flow fan 3 is better driven to rotate through the transmission speed-changing mechanism 4 when the cross flow fan 2 rotates.

Of course, the above alternative embodiments, and the alternative embodiments and the preferred embodiments can also be used in a cross-matching manner, so that a new embodiment is combined to be suitable for a more specific application scenario.

Moreover, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments, not other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions can be made on the related technical features by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions will fall into the protection scope of the invention.

Claims

1. The utility model provides a new trend air conditioner, a serial communication port, new trend air conditioner include the casing and set up in driving motor and air supply fan in the casing, driving motor sets to can drive air supply fan rotates, new trend air conditioner still including set up in new trend module in the casing, new trend module includes new trend fan and transmission speed change mechanism, the new trend fan sets to can introduce outdoor new trend to the interior space when rotating, the new trend fan set up in air supply fan keeps away from driving motor's tip, transmission speed change mechanism respectively with air supply fan with the new trend fan is connected the driving motor drive can pass through when air supply fan rotates transmission speed change mechanism drives the new trend fan rotates.

2. The fresh air conditioner as claimed in claim 1, wherein the transmission speed change mechanism comprises a gear assembly, and a first connecting shaft and a second connecting shaft connected with the gear assembly, wherein one end of the first connecting shaft, which is far away from the fresh air fan, is connected with a rotating shaft of the air supply fan, and one end of the second connecting shaft, which is far away from the air supply fan, is connected with the rotating shaft of the fresh air fan.

3. The fresh air conditioner as claimed in claim 2, wherein the gear assembly comprises a first gear and a second gear engaged with each other, the first connecting shaft is connected with the first gear, and the second connecting shaft is connected with the second gear.

4. The fresh air conditioner of claim 3 wherein the radial dimension of the first gear is greater than the radial dimension of the second gear.

5. The fresh air conditioner according to claim 3 or 4, wherein the transmission speed change mechanism further comprises a housing, the first gear and the second gear are disposed in the housing, two opposite sidewalls of the housing are respectively provided with a first through hole and a second through hole, the first connecting shaft passes through the first through hole and then is connected to the first gear, and the second connecting shaft passes through the second through hole and then is connected to the second gear.

6. The fresh air conditioner according to claim 5, wherein the transmission speed change mechanism further comprises a first bearing and a second bearing, the first bearing is disposed in the casing at a position corresponding to the first through hole, the second bearing is disposed in the casing at a position corresponding to the second through hole, when the fresh air conditioner is assembled, the first connection shaft penetrates through the first bearing, and the second connection shaft penetrates through the second bearing.

7. The fresh air conditioner as claimed in claim 5, wherein a first limiting structure is disposed on an outer wall of the first connecting shaft, a first through hole is disposed on the first gear, and when the first connecting shaft passes through the first through hole, the first connecting shaft and the first gear can be fixedly connected through the first limiting structure.

8. The fresh air conditioner as claimed in claim 7, wherein the transmission speed change mechanism further comprises a third bearing, the third bearing is disposed on the opposite side of the side wall of the casing where the first through hole is disposed, and the end of the first connecting shaft away from the blowing fan passes through the third bearing after passing through the first gear.

9. The fresh air conditioner according to claim 5, wherein a second limiting structure is disposed on an outer wall of the second connecting shaft, a second through hole is disposed on the second gear, and when the second connecting shaft passes through the second through hole, the second connecting shaft and the second gear can be fixedly connected through the second limiting structure.

10. The fresh air conditioner as claimed in claim 9, wherein the transmission speed change mechanism further comprises a fourth bearing, the fourth bearing is disposed on the opposite side of the sidewall of the casing where the second through hole is disposed, and the end of the second connection shaft away from the blowing fan passes through the fourth bearing after passing through the second gear.