Combined ventilation bypass assembly and air conditioning unit

Abstract

The application discloses a combined ventilation bypass assembly and air conditioning unit, which comprises a function bin and a power bin, the top of the function bin and the top of the power bin are communicated through a bypass air pipe, an air treatment section is arranged in the function bin, and the application further comprises: a baffle which is movably arranged at the upper end of the function bin and is used for controlling the opening and closing of the bypass air pipe; an auxiliary air duct which is arranged at the junction of the air treatment section and the function bin; a sealing plate which is rotatably arranged in the auxiliary air duct; and a linkage assembly which is used for linking the baffle and the sealing plate. When the baffle is moved to open the bypass air pipe to improve the ventilation effect and reduce the hindering effect of the air treatment section on ventilation, the sealing plate is linked to open the auxiliary air duct, the ventilation hindering is further reduced, the energy consumption of the ventilation working condition of the air conditioning unit is greatly reduced, and in addition, when the baffle is closed, the sealing plate is not closed synchronously but is closed with a time delay, so that the impact and vibration caused by the air treatment section suddenly increasing the ventilation volume can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, specifically relates to a combined ventilation bypass assembly and air conditioning unit. BACKGROUND

[0002] The combined air conditioning unit is composed of multiple sections in structure, contains multiple functions such as air supply, filtration and dust removal, refrigeration, heating, dehumidification, humidification or sound elimination, and is generally used in large space places such as large supermarkets, shopping malls, exhibition centers and subway stations, and the like. Such places often have relatively stable waste heat and waste humidity load all the year round, and the system needs to send cold air or ensure a certain fresh air exchange frequency all the year round or for a long time. In the transition season or winter, the cold water unit can be stopped to run, and the cold air outside the room can be directly sent to the indoor room, that is, the ventilation working condition is run to achieve the effect of cooling, so as to save the air conditioning energy consumption. The existing air conditioning ventilation unit basically meets the daily use requirements, but still has some deficiencies to be improved.

[0003] The patent document CN102353101A discloses a combined air conditioning unit with ventilation bypass, which can greatly reduce the energy consumption of the combined air conditioning unit in the ventilation working condition, and is beneficial to reducing the initial investment of the air conditioning system. The technical scheme comprises: an air inlet section, a filter section, an air treatment function section, a fan section, a sound elimination section and an air supply section. The cabinet bodies before and after the air treatment function section are respectively provided with front bypass openings and rear bypass openings. The front bypass openings and the rear bypass openings are connected by a bypass air pipe to form a ventilation bypass. The bypass air pipe is provided with a bypass air valve for controlling the opening and closing of the ventilation bypass.

[0004] In the prior art such as the above patent, the bypass air pipe is closed in the air conditioning mode, and is opened in the ventilation mode. When the bypass air pipe is closed, the ventilation volume in the unit cannot be adjusted in time, so that the air treatment section which is the most hindered in the unit suddenly receives a larger ventilation volume, and therefore a combined ventilation bypass assembly and air conditioning unit are needed to solve the above problems. SUMMARY

[0005] The present application aims to provide a combined ventilation bypass assembly and air conditioning unit to solve the above deficiencies in the prior art.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] The utility model provides a combined ventilation bypass assembly, including function warehouse and power warehouse, function warehouse and power warehouse top are connected through bypass air pipe, be provided with air treatment section in function warehouse, still include: baffle, its movable setting is in function warehouse upper end, is used for controlling the opening and closing of bypass air pipe, auxiliary air duct is set up in air treatment section side and function warehouse junction, sealing plate is rotatably arranged in auxiliary air duct, linkage assembly is used for linkage baffle and sealing plate, when baffle opens, sealing plate linkage opens auxiliary air duct, when baffle closes, sealing plate delays linkage and closes auxiliary air duct.

[0008] Preferably, the linkage assembly includes an abutting piece movably arranged at the upper end of the function warehouse, the abutting piece is arranged at the end of the travel of the movable baffle when the movable baffle closes the bypass air pipe, the end of the abutting piece is provided with a first gear rack, and the upper end of the rotating shaft of the sealing plate is coaxially connected with a first gear wheel engaged with the first gear rack through a one-way bearing.

[0009] Preferably, the linkage assembly includes a linkage rod rotatably arranged at the upper end of the function warehouse, the movable baffle is connected with the linkage rod through a one-way transmission assembly, and the linkage rod is connected with the upper end of the rotating shaft of the sealing plate through a bevel gear transmission.

[0010] Preferably, the one-way transmission assembly includes a rotating rod rotatably arranged at the upper end of the function warehouse, the linkage rod and the rotating rod are connected with a synchronous belt through a synchronous wheel, a section of the lower side of the synchronous belt is arranged in parallel on the upper side of the movable baffle, the upper side of the movable baffle is provided with a hook elastically tilted upward, a plurality of clamping grooves matched with the hook are uniformly arranged on the synchronous belt, and only when the movable baffle is moved to close the bypass air pipe, the end of the hook tilted upward is embedded into the clamping groove.

[0011] Preferably, the inner wall of the auxiliary air duct close to the air treatment section is provided with a movable groove, and a movable plate is movably arranged in the movable groove.

[0012] Preferably, a through groove is arranged on the air treatment section, and a flap is rotatably arranged in the through groove.

[0013] Preferably, a sleeve is fixedly arranged on the side of the movable plate away from the sealing plate, a helical groove is arranged on the inner wall of the sleeve, and a sliding convex is arranged on one end of the rotating shaft of the flap and slidably connected with the helical groove.

[0014] Preferably, a receiving groove is arranged on the inner wall of the side of the auxiliary air duct away from the air treatment section, a limiting piece is movably arranged in the receiving groove, the limiting piece has one end extending into the auxiliary air duct to block the first state of the side of the sealing plate facing the power warehouse and a second state of being completely received in the receiving groove, and the limiting piece is movably arranged with the movable baffle.

[0015] Preferably, a cam rod is arranged to rotate in the receiving groove, a synchronous groove matched with the cam rod is arranged on the limiting piece, the cam rod is arranged in the synchronous groove, and the rotation shaft of the cam rod is arranged in linkage with the baffle.

[0016] The air conditioning unit further comprises an air inlet bin and an air outlet bin, the air inlet bin is connected to the front end of the function bin, a filter section is arranged in the air inlet bin, the air outlet bin is connected to the rear end of the power bin, and a sound absorbing section is arranged in the air outlet bin.

[0017] In the above technical solution, the air conditioning unit has the following beneficial effects:

[0018] The combined ventilation bypass assembly is provided with a linkage assembly, when the baffle is opened to improve the ventilation effect and reduce the influence of the air treatment section on the ventilation resistance, the linkage assembly opens the auxiliary air duct to further reduce the ventilation resistance and greatly reduce the energy consumption of the air conditioning unit in the ventilation working condition, in addition, when the baffle is closed, the sealing plate is not closed synchronously, but is closed with a time delay, so that the impact and vibration caused by the sudden increase of the air treatment section in the ventilation volume can be avoided, the fragile components in the air treatment section are protected, and the practicability of the device is improved.

[0019] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not intended to limit the disclosure.

[0020] This application file provides an overview of various implementations or examples of the technology described in this disclosure and is not intended to be a comprehensive or exhaustive disclosure of the technology disclosed. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0022] Figure 1 The overall cross-sectional structure schematic diagram provided for the embodiments of the present application is shown in the figure.

[0023] Figure 2 The top cross-sectional structure schematic diagram provided for the embodiments of the present application is shown in the figure.

[0024] Figure 3 The internal component structure schematic diagram provided for the embodiments of the present application is shown in the figure.

[0025] Figure 4 The function bin top cross-sectional structure schematic diagram provided for the embodiments of the present application is shown in the figure. Figure 3 The enlarged structure schematic diagram of A in the figure is shown in the figure.

[0026] Figure 5 An enlarged structural schematic view at B in the embodiment of the present application is provided. Figure 3 An enlarged structural schematic view at B in the embodiment of the present application is provided.

[0027] Figure 6 An enlarged structural schematic view at B in the embodiment of the present application is provided.

[0028] Figure 7 An enlarged structural schematic view at B in the embodiment of the present application is provided. Figure 6 An enlarged structural schematic view at B in the embodiment of the present application is provided.

[0029] Figure 8 An enlarged structural schematic view at B in the embodiment of the present application is provided.

[0030] Figure 9 An enlarged structural schematic view at B in the embodiment of the present application is provided. Figure 8 An enlarged structural schematic view at B in the embodiment of the present application is provided.

[0031] Figure 10 An enlarged structural schematic view at B in the embodiment of the present application is provided.

[0032] Figure 11 An enlarged structural schematic view at B in the embodiment of the present application is provided. Figure 10 An enlarged structural schematic view at B in the embodiment of the present application is provided.

[0033] Figure 12 An enlarged structural schematic view at B in the embodiment of the present application is provided.

[0034] Figure 13 An enlarged structural schematic view at B in the embodiment of the present application is provided. Figure 12 An enlarged structural schematic view at B in the embodiment of the present application is provided.

[0035] Explanation of reference numerals:

[0036] 1, functional bin; 2, power bin; 3, bypass air duct; 4, air treatment section; 5, baffle; 6, auxiliary air duct; 7, sealing plate; 8, abutting member; 9, first rack; 10, first gear; 11, one-way bearing; 12, linkage rod; 13, rotating rod; 14, synchronous wheel; 15, synchronous belt; 16, hook; 17, hook groove; 18, movable slot; 19, movable plate; 20, through slot; 21, flap; 22, sleeve; 23, helical groove; 24, sliding convex; 25, receiving slot; 26, limiting member; 27, cam rod; 28, synchronous slot; 29, air inlet bin; 30, air outlet bin; 31, filter section; 32, muffling section; 33, fan. DETAILED DESCRIPTION

[0037] In order to make the purposes, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without any inventive effort shall fall within the scope of protection of the present disclosure.

[0038] Referring to Figures 1-13 The combined ventilation bypass assembly provided by the embodiments of the present application comprises a function bin 1 and a power bin 2, the top of the function bin 1 and the top of the power bin 2 are communicated through a bypass air pipe 3, an air treatment section 4 is arranged in the function bin 1, and the combined ventilation bypass assembly further comprises: a baffle 5 movably arranged at the upper end of the function bin 1 and used for controlling the opening and closing of the bypass air pipe 3; an auxiliary air duct 6 arranged at the junction of the air treatment section 4 and the function bin 1; a sealing plate 7 rotatably arranged in the auxiliary air duct 6; and a linkage assembly used for linking the baffle 5 and the sealing plate 7, when the baffle 5 is opened, the sealing plate 7 is linked to open the auxiliary air duct 6, and when the baffle 5 is closed, the sealing plate 7 is linked to close the auxiliary air duct 6 in a delayed manner.

[0039] Specifically, the function bin 1 and the power bin 2 are both rectangular tubes, and the air flows from the function bin 1 to the power bin 2; the power bin 2 is provided with a fan 33, which drives the air along the above air flow direction; the bypass air duct 3 is connected at one end to the top of the function bin 1 and at the other end to the top of the power bin 2, and the two connection positions correspond to the front and back of the air handling section 4 along the air flow direction; the air handling section 4 can include one or more of various functional sections such as a surface cooling section, a water blocking section, a heating section, a humidifying section, and a dehumidifying section. The function bin 1 is provided at the upper end with a pipe opening for connecting the bypass air duct 3, and a baffle 5 is provided corresponding to the pipe opening; a first movable cavity is provided in the entity of the upper end of the function bin 1 for the baffle 5 to move in, and the baffle 5 moves horizontally in the first movable cavity to block or avoid the pipe opening position, thereby realizing the control of the opening or closing of the communication between the function bin 1 and the bypass air duct 3; the function bin 1 is provided at the upper end with a servo system and related driving units to drive the baffle 5 to move, thereby realizing the sliding control function of the baffle 5, which is a prior art and will not be described in detail. The air handling section 4 is connected to the function bin 1 at the upper and lower ends, and the front and back correspond to the air flow direction, and the remaining two opposite sides are spaced apart from the inner wall of the function bin 1, i.e. forming an auxiliary air duct 6; the sealing plate 7 is vertically arranged and has a height consistent with that of the auxiliary air duct 6; one end of the rotating shaft of the sealing plate 7 is arranged close to the air handling section 4, and the free end can abut the inner wall of the auxiliary air duct 6 away from the air handling section 4 to close the auxiliary air duct 6, and when the sealing plate 7 is rotated away from the abutting inner wall of the auxiliary air duct 6, the auxiliary air duct 6 is opened. The linkage assembly is used to link the baffle 5 and the sealing plate 7; when the baffle 5 is opened to open the bypass air duct 3, the sealing plate 7 is linked to open the auxiliary air duct 6, and when the baffle 5 is closed to close the bypass air duct 3, the sealing plate 7 is still rotated in the same direction to delay the closing of the auxiliary air duct 6. In actual use, when the baffle 5 is moved to open the bypass air duct 3 to improve the ventilation effect and reduce the hindering effect of the air handling section 4 on ventilation, the sealing plate 7 is rotated under the driving of the linkage assembly to open the auxiliary air duct 6, further reducing the ventilation resistance and greatly reducing the energy consumption of the ventilation working condition of the air conditioning unit; when the baffle 5 is closed, the sealing plate 7 continues to rotate in the same direction to keep the auxiliary air duct 6 open, and then delays the closing of the auxiliary air duct 6, thereby avoiding the impact and vibration caused by the sudden increase of the air handling section 4 in the ventilation volume, avoiding damage to the fragile components in the air handling section 4, and during this delay, the fan 33 can be adjusted in speed by the servo system in time to balance the air volume change, protecting the stable operation of the unit.

[0040] Compared with the prior art, the combined ventilation bypass assembly provided by the embodiment of the application improves the ventilation effect by opening the bypass air duct 3 through the linkage assembly, reduces the obstruction of the air handling section 4 to ventilation, and further reduces the ventilation working condition energy consumption of the air conditioning unit.

[0041] As the preferred technical solution of the embodiment, the linkage assembly comprises an abutting piece 8 elastically movably arranged at the upper end of the functional bin 1, the abutting piece 8 is arranged at the end of the stroke when the shutter 5 moves to close the bypass air duct 3, the end of the abutting piece 8 is provided with a first rack 9, and the upper end of the rotating shaft of the sealing plate 7 is coaxially connected with a first gear 10 engaged with the first rack 9 through a one-way bearing 11. Specifically, a second movable cavity for the abutting piece 8 is arranged in the entity at the upper end of the functional bin 1, the first movable cavity and the second movable cavity are communicatively arranged, so that the movement range of the abutting piece 8 intersects with the range of the stroke end when the shutter 5 moves to close the bypass air duct 3, and then the stroke end of the shutter 5 when closing the bypass air duct 3 can push the abutting piece 8; a spring or other elastic piece is arranged in the second movable cavity and abuts against the side of the abutting piece 8 away from the shutter 5, so that the abutting piece 8 remains close to the shutter 5 when not subjected to external force, and when the shutter 5 closes the bypass air duct 3, the abutting piece 8 is located at the position abutting against the shutter 5, and the abutting piece 8 is in linkage with the first gear 10 through the first rack 9, so that the sealing plate 7 is in the state of closing the auxiliary air duct 6; the one-way bearing 11 connected between the rotating shaft of the sealing plate 7 and the first gear 10 only links the movement of the abutting piece 8 when the abutting piece 8 is elastically pushed to the rotation of the sealing plate 7, and does not drive the sealing plate 7 to rotate when the abutting piece 8 moves against the elastic force; that is, when the shutter 5 starts to move to open the bypass air duct 3, the abutting piece 8 moves with the shutter 5 under the elastic pushing, and then the first gear 10 is driven through the first rack 9, and the one-way bearing 11 can transmit the rotation in this direction, so that the sealing plate 7 is linked to rotate to open the auxiliary air duct 6, and when the shutter 5 ends the movement to close the bypass air duct 3, the abutting piece 8 is pushed by the shutter 5 to resist the elastic force, the abutting piece 8 drives the first gear 10 through the first rack 9, and the one-way bearing 11 does not transmit the rotation in this direction, so that the sealing plate 7 does not rotate.

[0042] As the preferred technical scheme of the embodiment, the linkage assembly comprises a linkage rod 12 rotatably arranged at the upper end of the function bin 1, the baffle 5 is connected with the linkage rod 12 through a one-way transmission assembly, and the linkage rod 12 is connected with the upper end of the rotating shaft of the sealing plate 7 through a bevel gear transmission. Specifically, the linkage rod 12 is rotatably arranged in the entity at the upper end of the function bin 1, and a first bevel gear is coaxially connected at the end thereof, and the upper end of the rotating shaft of the sealing plate 7 is coaxially connected with a second bevel gear meshing with the first bevel gear; the one-way transmission assembly transmits the movement of the baffle 5 when the baffle 5 is closed to the bypass air pipe 3 to the rotation of the linkage rod 12, and does not transmit the movement of the baffle 5 when the baffle 5 is opened to the bypass air pipe 3 to the linkage rod 12; in actual use, when the baffle 5 is opened to the bypass air pipe 3, the sealing plate 7 is linked with the abutting piece 8, but not linked with the linkage rod 12, and when the baffle 5 is closed to the bypass air pipe 3, the sealing plate 7 is not linked with the abutting piece 8, but linked with the linkage rod 12, thereby enabling the sealing plate 7 to keep switching the position of the fixed rotation direction.

[0043] As the preferred technical scheme of the embodiment, the one-way transmission assembly comprises a rotating rod 13 rotatably arranged at the upper end of the function bin 1, the linkage rod 12 and the rotating rod 13 are tensioned and connected with a synchronous belt 15 through a synchronous wheel 14, a section of the lower side of the synchronous belt 15 is arranged in parallel on the upper side of the baffle 5, the upper side of the baffle 5 is provided with a hook 16 elastically tilted upward, a plurality of clamping grooves 17 matched with the hook 16 are uniformly arranged on the synchronous belt 15, and only when the baffle 5 is closed to the bypass air pipe 3, the tilted end of the hook 16 is embedded in the clamping groove 17. Specifically, the rotating rod 13 and the linkage rod 12 are arranged at the same height and in parallel. The rotating rod 13 is rotatably arranged in the entity at the upper end of the function bin 1. Preferably, the synchronous belt 15 is arranged away from the upper end of the function bin 1. One end of the hook 16 is hinged to the upper side of the baffle 5. Preferably, a torsional spring can be arranged at the rotating shaft position of the hook 16, or a spring or other elastic member is connected between the lower side of the tilted end of the hook 16 and the baffle 5, so that one end of the hook 16 is kept tilted upward, and the tilted direction points to the closing direction of the baffle 5. The clamping grooves 17 are arranged in an open manner corresponding to the outer ring of the synchronous belt 15, and the free end of the tilted hook 16 can be embedded in the clamping groove 17 when corresponding to the clamping groove 17. When the hook 16 moves in the opening direction of the baffle 5, the hook 16 is extruded and slides with the synchronous belt 15, and the synchronous belt 15 does not roll. When the hook 16 moves in the closing direction of the baffle 5, the tilted end of the hook 16 can be embedded in the clamping groove 17, thereby pushing the synchronous belt 15 to roll, the synchronous belt 15 drives the linkage rod 12 to rotate, and the linkage rod 12 drives the sealing plate 7 to rotate.

[0044] In another embodiment of the present application, the auxiliary air duct 6 is provided with a movable slot 18 near the inner wall of the air treatment section 4, and a movable plate 19 is movably arranged in the movable slot 18. One side of the movable plate 19 is arranged to abut against the sealing plate 7. Specifically, a spring or other elastic member is arranged in the movable slot 18 to abut against the side of the movable plate 19 away from the sealing plate 7. The movable plate 19 is kept abutting against the sealing plate 7 under the elastic force, thereby keeping the sealing plate 7 closed with the movable plate 19. When the sealing plate 7 is actively rotated under the linkage of the linkage rod 12, the movable plate 19 is pushed to move into the movable slot 18 against the elastic force, and the sealing plate 7 is also kept closed with the movable plate 19. Then, when the sealing plate 7 continues to rotate and moves out of the movable slot 18, the movable plate 19 slowly moves back out of the movable slot 18.

[0045] As a preferred technical solution of the present embodiment, a through slot 20 is formed in the air treatment section 4, and a flap 21 is rotatably arranged in the through slot 20. The rotation of the flap 21 is linked with the movement of the movable plate 19. Specifically, the through slot 20 is arranged through the air treatment section 4 from front to back, and the flap 21 can completely block the through slot 20 in the rotation stroke. The linkage relationship between the flap 21 and the movable plate 19 is that when the movable plate 19 abuts against the rotation shaft end of the sealing plate 7, the movable plate 19 moves to the maximum in the direction out of the movable slot 18, and at this time, the flap 21 is in a vertical state to completely block the through slot 20. When the movable plate 19 abuts against the free end of the sealing plate 7, the movable plate 19 moves to the maximum in the direction into the movable slot 18, and at this time, the flap 21 is in a horizontal state to make the through slot 20 unblocked. In actual use, when the baffle 5 closes the bypass air duct 3, the sealing plate 7 is opened in the same direction as the opening of the auxiliary air duct 6, thereby pressing the movable plate 19 and keeping the auxiliary air duct 6 open, and the sealing plate 7 and the movable plate 19 are kept closed. At the same time, the movable plate 19 links the flap 21 to rotate, so that the through slot 20 can be ventilated, thereby further relieving the impact of the increased ventilation of the air treatment section 4 due to the closing of the bypass air duct 3. In addition, when the baffle 5 closes the bypass air duct 3, the sealing plate 7 rotates one circle to return to the position of closing the auxiliary air duct 6, and the flap 21 also returns to the position of completely blocking the through slot 20 under the linkage of the movement of the movable plate 19. During this period, the adjustment of the ventilation can be timely performed.

[0046] As a preferred technical solution of the present embodiment, a sleeve 22 is fixedly arranged on the side of the movable plate 19 away from the sealing plate 7, a helical groove 23 is arranged on the inner wall of the sleeve 22, and a sliding convex 24 of the rotation shaft end of the flap 21 is arranged to slide with the helical groove 23. Specifically, the movement of the movable plate 19 in the movable slot 18 drives the sleeve 22 to move axially relative to the rotation shaft of the flap 21, and the pitch of the helical groove 23 meets the transmission of the axial movement of the sleeve 22 to the rotation shaft of the flap 21. Thus, the helical groove 23 and the sliding convex 24 are helically transmitted, and the flap 21 is rotated.

[0047] In yet another embodiment of the present application, the auxiliary air duct 6 is provided with a receiving groove 25 on the inner wall of the side away from the air treatment section 4, and a limiting member 26 is movably arranged in the receiving groove 25. The limiting member 26 has one end extending into the auxiliary air duct 6 to block the first state of the sealing plate 7 on the side toward the power compartment 2 and a second state of being completely received in the receiving groove 25. The limiting member 26 is arranged in linkage with the baffle 5. Specifically, the receiving groove 25 is vertically arranged and is at the same height as the auxiliary air duct 6. The moving direction of the limiting member 26 is perpendicular to the inner wall of the auxiliary air duct 6. When the limiting member 26 is in the first state, the sealing plate 7 is limited and cannot rotate to open the auxiliary air duct 6. When the limiting member 26 is in the second state, the rotation of the sealing plate 7 is not limited. The linkage relationship between the limiting member 26 and the baffle 5 is as follows: in the initial process of the baffle 5 moving to open the bypass air duct 3, the movement of the baffle 5 links the limiting member 26 to move into the receiving groove 25 to receive the one end extending out of the receiving groove 25 into the receiving groove 25, and the limiting member 26 is in the second state, and then the sealing plate 7 starts to rotate under the elastic force of the abutting member 8. In the final process of the baffle 5 moving to close the bypass air duct 3, the movement of the baffle 5 links the limiting member 26 to extend out of the receiving groove 25 to block the one end extending out of the receiving groove 25 on the side of the sealing plate 7 toward the power compartment 2, and the limiting member 26 is in the first state, and then the sealing plate 7 also rotates to the position of closing the auxiliary air duct 6 by linkage of the linkage rod 12 and the baffle 5, and is limited by the limiting member 26 in the first state. At this time, the limiting member 26 blocks the sealing plate 7 to avoid the stress generated by the airflow blowing the sealing plate 7, and at the same time, the limiting member 26 blocks the gap between the free end of the sealing plate 7 and the inner wall of the auxiliary air duct 6 to eliminate the noise problem caused by the airflow passing through.

[0048] As the preferred technical scheme of the embodiment, the cam rod 27 is rotatably arranged in the receiving groove 25, the synchronous groove 28 matched with the cam rod 27 is arranged on the limiting piece 26, the cam rod 27 is arranged in the synchronous groove 28, the upper end of the rotating shaft of the cam rod 27 is linked with the baffle 5, specifically, when the baffle 5 is slid to open the bypass air duct 3, the cam rod 27 is linked to rotate the maximum radius position from the direction pointing to the outside of the movable groove 18 to the direction pointing to the inside of the movable groove 18, thereby the limiting piece 26 is completely received into the movable groove 18 through the synchronous groove 28, and the limiting piece 26 is switched to the second state; when the baffle 5 is slid to close the bypass air duct 3, the cam rod 27 is linked to rotate the maximum radius position from the direction pointing to the inside of the movable groove 18 to the direction pointing to the outside of the movable groove 18, thereby the limiting piece 26 is extended to one end outside the movable groove 18 through the synchronous groove 28, and the limiting piece 26 is switched to the first state; preferably, the first transmission rod and the second transmission rod are rotatably arranged in the entity of the upper end of the function bin 1, the second gear is coaxially connected to one end of the first transmission rod extended to the upper side of the baffle 5, the second rack matched with the second gear is arranged on the upper side of the baffle 5 close to one end of the abutting piece 8, the third bevel gear is coaxially connected to the other end of the first transmission rod, the fourth bevel gear meshed with the third bevel gear is coaxially connected to one end of the second transmission rod, the fifth bevel gear is coaxially connected to the other end of the second transmission rod, and the sixth bevel gear meshed with the fifth bevel gear is coaxially connected to the upper end of the rotating shaft of the cam rod 27. In actual use, in the initial process of the baffle 5 being moved to open the bypass air duct 3 or the final process of the baffle 5 being moved to close the bypass air duct 3, the movement of the baffle 5 drives the second gear to rotate through the second rack, the second gear drives the cam rod 27 to rotate through the first transmission rod, the third bevel gear, the fourth bevel gear, the second transmission rod, the fifth bevel gear and the sixth bevel gear in turn, and the cam rod 27 is extruded with the synchronous groove 28 to switch the limiting piece 26 between the first state and the second state.

[0049] An air conditioning unit comprising the combined ventilation bypass assembly, further comprising an air inlet bin 29 and an air outlet bin 30, the air inlet bin 29 is connected to the front end of the function bin 1, and the air inlet bin 29 is provided with a filter section 31, the air outlet bin 30 is connected to the rear end of the power bin 2, and the air outlet bin 30 is provided with a sound reduction section 32.

[0050] The above only describes certain exemplary embodiments of the application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the application. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the application.

Claims

1. A combined ventilation bypass assembly, comprising a functional compartment (1) and a power compartment (2), the tops of the functional compartment (1) and the power compartment (2) being connected by a bypass ventilation pipe (3), and an air handling section (4) being provided inside the functional compartment (1), characterized in that, Also includes: The baffle (5) is movable at the upper end of the functional compartment (1) and is used to control the opening and closing of the side ventilation pipe (3); Auxiliary air duct (6) is located at the junction of the side of the air handling section (4) and the functional compartment (1); The sealing plate (7) is rotated within the auxiliary air duct (6); The linkage component is used to link the baffle (5) and the sealing plate (7). When the baffle (5) is open, the sealing plate (7) will open the auxiliary air duct (6) in a linkage manner. When the baffle (5) is closed, the sealing plate (7) will close the auxiliary air duct (6) in a delayed linkage manner. The linkage component includes an abutment (8) that is elastically movable at the upper end of the functional compartment (1). The abutment (8) is located at the end of the stroke when the baffle (5) closes the bypass ventilation pipe (3). The end of the abutment (8) is provided with a first rack (9). The upper end of the rotating shaft of the sealing plate (7) is coaxially connected with a first gear (10) that meshes with the first rack (9) through a one-way bearing (11). The linkage component includes a linkage rod (12) rotatably mounted on the upper end of the functional compartment (1), the baffle (5) is connected to the linkage rod (12) through a one-way transmission component, and the linkage rod (12) is connected to the upper end of the rotating shaft of the sealing plate (7) through a bevel gear transmission. The one-way transmission assembly includes a rotating rod (13) rotatably mounted on the upper end of the functional compartment (1). The linkage rod (12) and the rotating rod (13) are connected by a synchronous belt (15) tensioned by a synchronous pulley (14). A section of the lower side of the synchronous belt (15) is parallel to the upper side of the baffle (5). The upper side of the baffle (5) is provided with an upwardly elastically raised hook (16). The synchronous belt (15) is evenly provided with multiple slots (17) that match the hook (16). Only when the baffle (5) moves to close the side ventilation pipe (3), the raised end of the hook (16) is embedded in the slot (17). The auxiliary air duct (6) is provided with a movable groove (18) on the inner wall near the air handling section (4). A movable plate (19) is flexibly and movablely arranged in the movable groove (18). One side of the movable plate (19) is abutted against the sealing plate (7). The air handling section (4) is provided with a through groove (20), and a flap (21) is rotatably arranged in the through groove (20). The rotation of the flap (21) is linked to the movement of the movable plate (19). A sleeve (22) is fixedly installed on the side of the movable plate (19) away from the sealing plate (7). A spiral groove (23) is provided on the inner wall of the sleeve (22). One end of the rotating shaft of the flip plate (21) extends into the sleeve (22) and is provided with a sliding protrusion (24) that is slidably connected to the spiral groove (23).

2. The combined ventilation bypass assembly according to claim 1, characterized in that, The auxiliary air duct (6) has a storage groove (25) on the inner wall of the side away from the air handling section (4). A limiting member (26) is movably installed in the storage groove (25). The limiting member (26) has a first state in which one end extends into the auxiliary air duct (6) to block the sealing plate (7) from the side facing the power compartment (2) and a second state in which it is completely retracted into the storage groove (25). The limiting member (26) is linked to the baffle (5).

3. The combined ventilation bypass assembly according to claim 2, characterized in that, A cam rod (27) is rotatably arranged inside the storage slot (25). A synchronization slot (28) matching the cam rod (27) is provided on the limiting member (26). The cam rod (27) is arranged in the synchronization slot (28). The upper end of the rotating shaft of the cam rod (27) is linked with the baffle (5).

4. An air conditioning unit comprising the combined ventilation bypass assembly as described in any one of claims 1 to 3, characterized in that, It also includes an air inlet chamber (29) and an air supply chamber (30). The air inlet chamber (29) is connected to the front end of the functional chamber (1) and a filter section (31) is provided inside the air inlet chamber (29). The air supply chamber (30) is connected to the rear end of the power chamber (2) and a noise reduction section (32) is provided inside the air supply chamber (30).

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