Switch device, air duct assembly and air conditioner

Abstract

The present invention discloses a switching device, an air duct assembly and an air conditioner. The switching device includes: a door frame and a switching member. A ventilation opening is provided on the door frame and extends in the front-rear direction. The switching member is movably connected to the door frame between an open position and a closed position, and the switching member is configured to be inserted into the door frame from front to back. Wherein, the switching member includes a damper. When the switching member is in the open position, the damper opens the ventilation opening, and when the switching member is in the closed position, the damper closes the ventilation opening. The switching device according to the embodiment of the present invention simplifies the assembly process of the switching member, improves the assembly efficiency and reduces the loss.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and particularly to a switching device, an air duct assembly having the switching device, and an air conditioner having the air duct assembly. Background Art

[0002] In related art air conditioners, some are provided with a fresh air passage. Therefore, a damper structure needs to be provided to open and close the fresh air passage, so as to selectively receive fresh air, thereby effectively optimizing the indoor environment, improving the heat exchange effect and the comfort of the environment.

[0003] However, the damper structure in related art is not convenient to assemble, which has a great impact on the production efficiency of the air conditioner. Moreover, due to the limited installation space at the rear of the indoor part of the air conditioner (especially window air conditioners), it not only makes it difficult to install the damper, but also easily causes damage during the installation process of the damper. Summary of the Invention

[0004] An object of the present invention is to provide a switching device which is convenient to install and use, effectively simplifies the assembly, improves the assembly efficiency, and reduces the assembly cost.

[0005] Another object of the present invention is to provide an air duct assembly including the switching device.

[0006] Still another object of the present invention is to provide an air conditioner including the air duct assembly.

[0007] According to an embodiment of the switching device of the present invention, the switching device includes: a door frame and a switching member. The door frame is provided with a ventilation opening which extends in the front-rear direction; the switching member is movably connected to the door frame between an open position and a closed position, and the switching member is configured to be inserted into the door frame from front to back. Wherein, the switching member includes a damper. When the switching member is in the open position, the damper opens the ventilation opening, and when the switching member is in the closed position, the damper closes the ventilation opening.

[0008] According to the switching device of the embodiment of the present invention, through the combination of the door frame and the switching member, the switching device can be modularized, which is convenient for the production, assembly and design of the switch door decoration. In addition, since the switching member can be installed on the door frame from front to back, the assembly process of the switching member is simplified, the assembly efficiency is improved, and the loss is reduced.

[0009] In addition, according to the switching device of the above embodiment of the present invention, it may further have the following additional technical features:

[0010] In some embodiments, the air damper includes a closing portion and an embedded portion. The closing portion is configured to cover and open the vent; the embedded portion is connected to the closing portion and is adapted to be inserted into the vent from front to back and nested in the vent movably in the front-back direction.

[0011] In some embodiments, the embedded portion includes: a first insert and a second insert. The first insert is connected to the closing portion and extends backward; the second insert is connected to the closing portion and extends backward. The first insert and the second insert are spaced apart in a first direction perpendicular to the front-back direction.

[0012] In some embodiments, the first insert and the second insert are respectively embedded on opposite sides of the vent in the first direction.

[0013] In some embodiments, the width dimension of the first insert in a second direction perpendicular to the first direction and the front-back direction is the same as the width dimension of the vent.

[0014] In some embodiments, the second insert includes: a first part and a second part. The first part is connected to the closing portion and extends backward; the second part is connected to the first part and extends backward. Wherein, the width dimension of the first part in the second direction is the same as the width dimension of the vent, and the width dimension of the second part in the second direction is smaller than the width dimension of the vent. The second direction is perpendicular to the first direction and the front-back direction.

[0015] In some embodiments, the first insert is in a flat plate shape.

[0016] In some embodiments, the second insert is in a hollow tubular shape extending in a second direction perpendicular to the first direction and the front-back direction.

[0017] In some embodiments, the door frame further includes a guiding opening with an axis extending in the front-back direction. The switching member further includes: a guiding portion adapted to be inserted into the guiding opening from front to back and nested in the guiding opening movably in the front-back direction. The guiding portion is connected to the air damper.

[0018] In some embodiments, the door frame is in a tubular shape extending in the front-back direction. The rear end of the door frame is open and in a wedge-shaped structure. The vent and the guiding opening are arranged at intervals in a direction perpendicular to the front-back direction at the front end of the door frame.

[0019] In some embodiments, a limiting portion is provided on the switching member, and when the switching member is in the closed position, the limiting portion abuts against the front side of the door frame.

[0020] In some embodiments, the switch further includes: a pull rod, which is connected to the air damper and extends forward, wherein a handle perpendicular to the pull rod is provided at one end of the pull rod away from the door pocket.

[0021] The air duct assembly according to an embodiment of the present invention includes: an air duct housing, a wind wheel, an air outlet frame, and a switching device. A circulation air duct and a fresh air duct are formed in the air duct housing, and an air outlet for communicating with the return air outlet of the circulation air duct is provided on the air duct housing; the wind wheel is arranged in the circulation air duct; the air outlet frame is arranged on the air duct housing and is opposite to the air outlet; the switching device is the switching device according to the foregoing, and the switching device is installed on the air duct housing for opening and closing the fresh air duct.

[0022] In some embodiments, the door pocket is nested in the fresh air duct, and the switch is adapted to be installed on the door pocket from front to back.

[0023] In some embodiments, the air damper is connected to a pull rod that extends forward, and the pull rod extends to a position adjacent to the air outlet frame without protruding beyond the air outlet frame.

[0024] In some embodiments, the air duct housing includes: a rear air duct and a front air duct. A fresh air inlet and the circulation air duct are provided on the rear air duct; the front air duct is arranged on the front side of the rear air duct. A fresh air outlet and a guide air outlet are provided on the front air duct. The fresh air outlet and the fresh air inlet are opposite to each other front and back and jointly form the fresh air duct. The guide air outlet and the air outlet end of the circulation air duct are opposite to each other front and back and jointly form the air outlet. Among them, the door pocket is nested in the fresh air inlet, and the switch is adapted to be installed on the door pocket from front to back.

[0025] In some embodiments, the switch abuts against the rear side of the front air duct in the open position.

[0026] In some embodiments, the air duct may further include: a cover plate, which covers the front side of the rear air duct to seal the circulation air duct, and the return air outlet is formed on the cover plate.

[0027] The air conditioner according to an embodiment of the present invention includes: an air duct assembly and a heat exchanger. The air duct assembly is the air duct assembly according to the foregoing; the heat exchanger is arranged in the circulation air duct.

[0028] In some embodiments, the switch abuts against the rear side of the heat exchanger in the open position. Description of the Drawings

[0029] Figure 1 is a cross-sectional view of the switching device according to an embodiment of the present invention.

[0030] Figure 2Explosion schematic diagram of the switch device according to an embodiment of the present invention.

[0031] Figure 3 Schematic diagram of the switch element of the switch device according to an embodiment of the present invention.

[0032] Figure 4 Schematic diagram of the air duct assembly according to an embodiment of the present invention.

[0033] Figure 5 Front view of the air duct assembly according to an embodiment of the present invention.

[0034] Figure 6 Is Figure 5 Cross-sectional view of the middle section A-A.

[0035] Figure 7 Is Figure 5 Cross-sectional view of the middle section B-B.

[0036] Figure 8 Side view of the air duct assembly according to an embodiment of the present invention.

[0037] Figure 9 Rear view of the air duct assembly according to an embodiment of the present invention.

[0038] Figure 10 Explosion schematic diagram of the air duct assembly according to an embodiment of the present invention.

[0039] Figure 11 Schematic diagram of the air duct housing of the air duct assembly according to an embodiment of the present invention.

[0040] Figure 12 Front view of the air duct housing of the air duct assembly according to an embodiment of the present invention.

[0041] Figure 13 Is Figure 12 Cross-sectional view of the middle section C-C.

[0042] Figure 14 Is Figure 12 Cross-sectional view of the middle section D-D.

[0043] Figure 15 Rear view of the air duct assembly according to an embodiment of the present invention.

[0044] Figure 16 Schematic diagram of the rear air duct of the air duct assembly according to an embodiment of the present invention.

[0045] Figure 17 Front view of the rear air duct of the air duct assembly according to an embodiment of the present invention.

[0046] Figure 18 Is Figure 17 Cross-sectional view of the middle section E-E.

[0047] Figure 19 is Figure 17 A sectional view taken along the mid - section F - F.

[0048] Figure 20 It is a schematic view of the front air duct of the air duct assembly according to an embodiment of the present invention.

[0049] Figure 21 It is a front view of the front air duct of the air duct assembly according to an embodiment of the present invention.

[0050] Figure 22 is Figure 21 A sectional view taken along the mid - section G - G.

[0051] Figure 23 It is a schematic view of an air conditioner according to an embodiment of the present invention.

[0052] Figure 24 It is a front view of an air conditioner according to an embodiment of the present invention.

[0053] Figure 25 is Figure 24 A sectional view taken along the mid - section H - H.

[0054] Reference numerals:

[0055] Air conditioner 1000,

[0056] Air duct assembly 100, switch device 10, door pocket 11, switch member 12, ventilation opening 101, air damper 121, closed portion 1211, embedded portion 1212, first insert 1213, second insert 1214, first part 1215, second part 1216, guiding opening 102, guiding portion 122, limiting portion 103, pull rod 123, handle 124, air duct housing 20, circulation air duct 201, fresh air duct 202, air return opening 203, air supply opening 204, air wheel 23, air outlet frame 24, rear air duct 21, front air duct 22, fresh air inlet 205, fresh air outlet 206, air guiding opening 207, cover plate 25, first stepped surface 208, second stepped surface 209, connecting surface 2010,

[0057] Heat exchanger 300. Detailed description of the specific implementation

[0058] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0059] As Figures 1 to 3, according to the switch device 10 of an embodiment of the present invention, the switch device 10 includes: a door frame 11 and a switch member 12. The door frame 11 is used to provide an air flow channel, and the switch member 12 is used to selectively open and close the air flow channel.

[0060] Specifically, a ventilation opening 101 is provided on the door frame 11, and the ventilation opening 101 can be used for air flow to pass through. The ventilation opening 101 extends in the front-rear direction. The switch member 12 is movably connected to the door frame 11 between an open position and a closed position, and the switch member 12 is configured to be inserted into the door frame 11 from front to back. Among them, the switch member 12 includes a damper 121, and the damper 121 is used to open and close the ventilation opening 101. When the switch member 12 is in the open position, the damper 121 opens the ventilation opening 101, and when the switch member 12 is in the closed position, the damper 121 closes the ventilation opening 101.

[0061] Among them, the switch member 12 is adapted to be inserted into the door frame 11 from front to back. That is to say, when the switch member 12 is installed on the door frame 11 from front to back, the switch member 12 does not have an inelastic structure that interferes with the door frame 11. This includes but is not limited to: the switch member 12 can be installed on the front side of the door frame 11, and the front sides of the switch member 12 and the door frame 11 are separated in the front-to-back projection; or, the switch member 12 can be installed on the front side of the door frame 11, and the front sides of the switch member 12 and the door frame 11 have the ability of elastic deformation at the place where the front-to-back projections coincide, so that during the installation of the switch member 12, it can give way through elastic deformation.

[0062] In addition, the switch member 12 can be inserted into the door frame 11, so that the movement of the switch member 12 can be guided through the insertion structure, which is convenient for the switch member 12 to move smoothly.

[0063] According to the switch device 10 of an embodiment of the present invention, through modular design, the complete switch device 10 is formed by the combination of the door frame 11 and the switch member 12, etc. The modular design can simplify the production and design of the switch device 10, reduce the influence of the production and installation of the switch device 10 on the surrounding structure, and at the same time reduce the influence of the surrounding structure on the switch device 10, which is convenient for the production, assembly and design of the switch device 10.

[0064] In addition, since the switch member 12 can be installed on the door frame 11 from front to back, the movement of the switch member 12 can be guided through the insertion structure, and the assembly process of the switch device 10 is also simplified, improving the stability of the operation of the switch device 10.

[0065] For example, when the switch device 10 is applied to the fresh air duct 202 of the air conditioner 1000, that is, when the fresh air duct 202 is also switched on and off by the switch device 10, the door sleeve 11 can be nested on the fresh air duct 202. At this time, the switch member 12 can be smoothly installed on the door sleeve 11 from front to back, and there is no need to install the switch member 12 from the rear side of the fresh air duct 202. The installation of the switch device 10 can be simplified, the installation efficiency of the switch device 10 can be improved, and the space during the installation process can be increased. Further, the installation process can be simplified and the installation efficiency of the switch device 10 can be improved.

[0066] The switch device 10 in the present invention can be applied to a wall-mounted air conditioner 1000, a cabinet air conditioner 1000, a mobile air conditioner 1000, etc., and can also be applied to a window air conditioner.

[0067] Taking the window air conditioner as an example, the fresh air duct 202 is located in the indoor unit part, and the outdoor unit part is located at the rear side of the indoor unit part. The rear side of the fresh air duct 202 may be various pipelines or the outdoor unit part. In this way, when installing the switch member 12 from back to front, there is not much space left for assembling the switch member 12, which easily causes the switch member 12 to be damaged or unable to be installed. By providing the switch device 10 in the present invention, the switch member 12 can be installed from the front side of the door sleeve 11, and the installation space of the switch member 12 is large enough, which can effectively improve the assembly efficiency. Moreover, through the plug-in fit, a certain guiding effect can be provided for the switch member 12 to ensure that the switch member 12 smoothly switches between the open position and the closed position.

[0068] In addition, the switch member 12 can have various forms. For example, the ventilation opening 101 is closed and opened through a structure, and a guiding opening structure and a guiding plug-in structure are additionally provided to achieve guiding. Alternatively, the closed structure and the guiding structure can be integrated together. The closed structure is used to open and close the ventilation opening 101, and the guiding structure is used to movably cooperate with the ventilation opening 101 to achieve guiding.

[0069] Optionally, the air damper 121 includes a closing portion 1211 and an embedded portion 1212. The closing portion 1211 is configured to be suitable for covering and opening the ventilation opening 101. The embedded portion 1212 is connected to the closing portion 1211. The embedded portion 1212 is suitable for being inserted into the ventilation opening 101 from front to back and being movably nested in the ventilation opening 101 in the front-back direction. The nested fit between the embedded portion 1212 and the ventilation opening 101 can provide guidance for the front-back movement of the air damper 121, provide guidance for the movement of the air damper 121 between the open position and the closed position, facilitate the air damper 121 to move along a predetermined trajectory to a predetermined position, and thus smoothly switch the ventilation opening 101 on and off through the air damper 121.

[0070] In addition, the closing part 1211 can be configured in the form of a cover plate 25. For example, the closing part 1211 is configured as a plate part perpendicular to the axis of the ventilation opening 101 (i.e., perpendicular to the front-rear direction). During the forward and backward movement of the closing part 1211, the closing part 1211 can cover the ventilation opening 101; when the closing part 1211 moves away from the ventilation opening 101, the closing part 1211 can open the ventilation opening 101.

[0071] Optionally, when the closing part 1211 closes the ventilation opening 101, the closing part 1211 can be embedded into the ventilation opening 101 to form a closed structure, or the closing part 1211 can be capped outside the ventilation opening 101 to form a closed structure.

[0072] Optionally, the embedded part 1212 includes: a first insert 1213 and a second insert 1214. The first insert 1213 is connected to the closing part 1211 and extends backward. The second insert 1214 is connected to the closing part 1211 and extends backward. The first insert 1213 and the second insert 1214 are spaced apart in a first direction (the up-down direction in the figure), and the first direction is perpendicular to the front-rear direction. The first insert 1213 and the second insert 1214 can provide guidance for the forward and backward movement of the air damper 121, guiding the forward and backward movement of the air damper 121. And the first insert 1213 and the second insert 1214 are spaced apart, which can form a flow channel between the first insert 1213 and the second insert 1214. When the closing part 1211 opens the ventilation opening 101, the flow channel formed between the first insert 1213 and the second insert 1214 can guide the air flow to circulate, that is, adjust the switching device 10 to the open state.

[0073] Therefore, by providing the first insert 1213 and the second insert 1214 that are spaced apart from each other, it is possible to effectively guide the movement of the air damper 121 while guiding the movement of the switching member 12.

[0074] Optionally, the first insert 1213 and the second insert 1214 are respectively embedded on the opposite sides in the first direction within the ventilation opening 101. The cooperation of the first insert 1213 and the second insert 1214 will restrict the degree of freedom of the embedded part 1212 in the first direction, so that the embedded part can move forward and backward stably, thereby further improving the guiding effect of the air damper 121 and facilitating the stable movement of the air damper 121.

[0075] Optionally, the width dimension of the first insert 1213 in a second direction (the left-right direction in the figure) is the same as the width dimension of the ventilation opening 101, and the second direction is perpendicular to the first direction and the front-rear direction. The width of the first insert 1213 is equivalent to the width of the ventilation opening 101. In this way, the degree of freedom of the first insert 1213 in the second direction is restricted, thereby improving the stability of the forward and backward movement of the embedded part.

[0076] Optionally, the second insert 1214 includes: a first part 1215 and a second part 1216. The first part 1215 is connected to the closing part 1211 and extends backward. The second part 1216 is connected to the first part 1215 and extends backward. Among them, the width dimension of the first part 1215 in the second direction is the same as the width dimension of the vent 101, and the width dimension of the second part 1216 in the second direction is smaller than the width dimension of the vent 101. The second direction is perpendicular to the first direction and the front-back direction. The first part 1215 of the second insert 1214 can also restrict the degree of freedom of the embedded part 1212 in the second direction, thereby ensuring the stable movement of the embedded part 1212. In addition, by providing the second part 1216, the space occupied by the second insert 1214 in the vent 101 can be reduced, the space utilization rate can be improved, and the influence of the embedded part 1212 on the air flow rate can be reduced.

[0077] In addition, by configuring the second insert 1214 to have the form of the first part 1215 and the second part 1216, the space occupied by the embedded part 1212 in the vent 101 can be adjusted. By changing the position of the insert during movement, the flow area of the vent 101 can be adjusted, and the function of adjusting the air flow rate can be increased.

[0078] Optionally, the first insert 1213 is in the shape of a flat plate. The first insert 1213 can be adjacent to three inner sides of the vent 101, which can effectively improve the stability of guiding the embedded part 1212. Moreover, the flat-plate-shaped first insert 1213 can effectively reduce the space it occupies and its influence on the air flow rate.

[0079] Optionally, the second insert 1214 is a hollow tube extending in the second direction, where the second direction is perpendicular to the first direction and the front-back direction. This reduces the material usage of the switch member 12 and saves materials. In addition, by configuring the second insert 1214 as a hollow tube, when the switch member 12 is injection-molded, the problem of cold shrinkage can be avoided, and the formation of injection molding defects can be reduced.

[0080] Optionally, the door frame 11 further includes a guiding port 102 whose axis extends in the front-back direction. The switch member 12 further includes: a guiding part 122. The guiding part 122 is adapted to be inserted into the guiding port 102 from front to back and movably nested in the guiding port 102 in the front-back direction. The guiding part 122 is connected to the air damper 121. By providing the guiding port 102 and the guiding part 122, further guidance can be provided for the switch member 12, facilitating the stable movement of the switch member 12. Moreover, a guiding structure of a slider guide groove is also formed between the guiding part 122 and the air damper 121, and between the vent 101 and the guiding port 102, further improving the guiding effect on the switch member 12.

[0081] Optionally, the door frame 11 is tubular and extends in the front-rear direction. The rear end of the door frame 11 is open and has a wedge-shaped structure. The ventilation openings 101 and the guiding openings 102 are arranged at intervals in a direction perpendicular to the front-rear direction and are provided at the front end of the door frame 11. This facilitates the installation of the door frame 11 and reduces the use of materials. Moreover, when the door frame 11 is installed in the fresh air duct 202, the stability of the door frame 11 can be improved.

[0082] Optionally, a limiting portion 103 is provided on the switch member 12, and when the switch member 12 is in the closed position, the limiting portion 103 abuts against the front side of the door frame 11. The limiting portion 103 can provide guidance for the switch member 12, so that the switch member 12 can be stably maintained in the closed position, preventing the switch member 12 from moving excessively and becoming unusable.

[0083] Optionally, in the foregoing embodiments of the present invention, an air damper 121 and a guiding portion 122 are included. Steps can be provided on the outer peripheral surface of at least one of the air damper 121 and the guiding portion 122 to form the limiting portion 103. For example, steps can be provided on the opposite surfaces of the air damper 121 and the guiding portion 122 to form the limiting portion 103. When the switch member 12 is in the closed position, the limiting portions 103 on the air damper 121 and the guiding portion 122 both abut against the door frame 11.

[0084] Furthermore, a flanging structure is provided on the periphery of at least one of the foregoing ventilation openings 101 and guiding openings 102. When the switch member 12 is in the closed position, the limiting portion 103 can be abutted against the flanging structure. In addition, the flanging structure can effectively improve the structural strength of the door frame 11.

[0085] Optionally, the switch member 12 further includes: a pull rod 123, which is connected to the air damper 121 and extends forward. The switch member 12 can be pulled through the pull rod 123 to complete the switching of the air damper 121 between the closed position and the open position, thereby further simplifying the operation.

[0086] In addition, a handle 124 perpendicular to the pull rod 123 is provided at one end of the pull rod 123 away from the door frame 11. The pull rod 123 can be conveniently pulled through the handle 124.

[0087] As Figures 4 - 22 , the air duct assembly 100 according to an embodiment of the present invention includes: an air duct housing 20. A circulation air duct 201 and a fresh air duct 202 are formed in the air duct housing 20, and an air supply opening 204 communicating with the return air opening 203 of the circulation air duct 201 is provided on the air duct housing 20. The circulation air duct 201 can be used as the air duct for the indoor circulating air flow. The air flow is sucked into the circulation air duct 201 through the suction force of the return air opening 203, and after heat exchange in the circulation air duct 201, it is sent out through the air supply opening 204. The fresh air duct 202 can supply fresh air to the room and improve the indoor air environment.

[0088] The air duct assembly 100 may further include a wind wheel 23 disposed in the circulation air duct 201. The wind wheel 23 is used to drive the air flow to flow from the air return opening 203 to the air supply opening 204, thereby forming a circulating heat exchange from the indoor → the air return opening 203 → the circulation air duct 201 (which may contain a heat exchanger 300) → the air supply opening 204 → the indoor. This improves the indoor environment. Among them, the circulation air duct 201 may contain a heat exchange device or may be provided with a purification device, etc. The internal heat exchange device can improve the indoor temperature, and the internal purification device can improve the indoor air quality.

[0089] The air duct assembly 100 may further include a switching device 10 installed on the air duct housing 20 for opening and closing the fresh air duct 202.

[0090] Optionally, the switching device 10 is the switching device 10 described in other embodiments of the present invention.

[0091] According to the air duct assembly 100 of the embodiment of the present invention, due to the provision of the aforementioned switching device 10, the rapid installation of the switching device 10 can be facilitated, and the installation efficiency of the switching device 10 can be improved. The front-to-back installation of the switching member 12 can facilitate the installation of the air duct assembly 100, increase the installation space, and simplify the installation process difficulty.

[0092] Of course, other forms of switching devices 10 can also be used to open and close the air duct.

[0093] Optionally, the door pocket 11 is nested in the fresh air duct 202, and the switching member 12 is adapted to be installed on the door pocket 11 from front to back. That is to say, after the door pocket 11 is nested on the fresh air duct 202, the switching member 12 can be installed on the door pocket 11 from front to back. In this way, the installation of the switching device 10 can be further simplified, and the assembly process can be simplified.

[0094] The air duct assembly 100 may further include an air outlet frame 24. The air outlet frame 24 can be set to be connected to the air duct housing 20 and opposite to the air supply opening 204. The air outlet frame 24 can be used to guide the air sent out from the air supply opening 204 and direct the air flow sent out from the air supply opening 204 to a predetermined position. In addition, the air outlet frame 24 can also play a protective role to prevent external impurities or hands from entering the circulation air duct 201 and reduce potential safety hazards.

[0095] Optionally, the switching device 10 may include a pull rod 123 that extends adjacent to the air outlet frame 24 and does not protrude from the air outlet frame 24. During use, the air outlet frame 24 can be removed and then the switching member 12 can be driven to move to open and close the fresh air duct 202. When the air outlet frame 24 is not removed, it is difficult to adjust the opening and closing state of the fresh air duct 202, which can avoid misoperation.

[0096] For example, when the air duct assembly 100 (or the air conditioner 1000 in the present invention) is applied to public places such as hotels, the open operation form of the switch device 10 easily causes the switch device 10 to be damaged due to excessive adjustment. Therefore, in the present invention, by arranging the pull rod 123 behind the air outlet frame 24, damage caused by misadjustment or random adjustment of the switch device 10 can be avoided.

[0097] In addition, in combination with other embodiments of the present invention, the pull rod 123 is connected to the air outlet and extends forward.

[0098] In addition, a handle 124 perpendicular to the pull rod 123 is provided at one end of the pull rod 123 adjacent to the air outlet frame 24. In combination with other embodiments of the present invention, one end of the pull rod 123 adjacent to the air outlet frame 24 is the end of the pull rod 123 far from the door pocket 11.

[0099] Optionally, the air duct housing 20 includes: a rear air duct 21 and a front air duct 22. A fresh air inlet 205 and a circulation air duct 201 are provided on the rear air duct 21. The front air duct 22 is provided on the front side of the rear air duct 21. A fresh air outlet 206 and an air guiding opening 207 are provided on the front air duct 22. The fresh air outlet 206 and the fresh air inlet 205 are opposite to each other front and back and jointly form a fresh air duct 202. The air guiding opening 207 and the air outlet end of the circulation air duct 201 are opposite to each other front and back and jointly form an air supply opening 204. By combining the front and rear air ducts 21, the manufacturing difficulty of the air duct can be reduced, the molding of the air duct housing 20 can be facilitated, and the molding efficiency can be improved.

[0100] Optionally, at least a part of the switch device 10 in the present invention can be arranged in the fresh air inlet 205 for opening the fresh air inlet 205. In this way, the installation of the switch device 10 can be facilitated. Moreover, in combination with the description below, the fresh air inlet 205 has a larger flow area than the fresh air outlet 206, thereby facilitating the installation of the switch device 10.

[0101] Optionally, the switch device 10 is configured to be suitable for being inserted into the fresh air inlet 205 from the front side of the fresh air inlet 205. Thereby, the installation of the switch device 10 can be facilitated.

[0102] In combination with the switch device 10 described in other embodiments of the present invention, the door pocket 11 can be nested in the fresh air inlet 205, and the switch member 12 is suitable for being installed on the door pocket 11 from front to back. In this way, the fresh air duct 202 and the air supply opening 204 in the present invention are both arranged in a form extending in the front-back direction, which can facilitate the formation of the fresh air outlet into the air supply opening 204, so that fresh air can be introduced by driving the air wheel 23. In addition, the installation of the switch member 12 can be facilitated, and the movement of the switch member 12 in the front-back direction can be facilitated, which is convenient for opening and closing the fresh air duct 202.

[0103] Optionally, the switch member 12 abuts against the rear side of the front air duct 22 in the open position. The front air duct 22 can provide a limit for the switch member 12 to prevent the switch member 12 from being pulled out of the door pocket 11, reducing the failure rate of the switch device 10.

[0104] Optionally, the air duct may further include: a cover plate 25, the cover plate 25 covers the front side of the rear air duct 21 to seal the circulation air duct 201, and the air return opening 203 is formed on the cover plate 25. A complete circulation air duct 201 can be formed by the cover plate 25.

[0105] In the foregoing embodiment, the flow-through area of the fresh air outlet 206 can be set to be smaller than the flow-through area of the fresh air inlet 205. In this way, it is easier to generate negative pressure at the fresh air outlet 206, facilitating the flow of air into the fresh air duct 202 and sending it to the room. Moreover, the fresh air inlet 205 with a larger flow-through area can provide more fresh air, improving the delivery efficiency of fresh air.

[0106] Optionally, the fresh air duct 202 can communicate with the air supply outlet 204. During operation, the air flow is sent out from the air supply outlet 204, which will also guide the air flow to be sent to the room through the fresh air duct 202, thereby providing fresh air to the room through the fresh air duct 202.

[0107] In addition, in order to facilitate the stable delivery of fresh air to the room through the fresh air duct 202, the negative pressure formed at the outlet of the fresh air duct 202 during operation can be increased, thereby more conveniently introducing fresh air into the room. In the present invention, there are various different ways to increase the negative pressure at the outlet of the fresh air duct 202, including at least forming negative pressure through the structure; providing negative pressure by the rotation direction of the air wheel 23.

[0108] Optionally, the bottom surface of the air supply outlet 204 includes a first stepped surface 208, a second stepped surface 209 and a connecting surface 2010. The connecting surface 2010 is connected between the first stepped surface 208 and the second stepped surface 209, and the first stepped surface 208 is higher than the second stepped surface 209 to form a step. The outlet of the fresh air duct 202 is provided on the first stepped surface 208. In this way, during the operation of (the air conditioner 1000 or other equipment), an air flow path from the air return duct to the air supply outlet 204 can be formed through the circulation air duct 201. Due to the stepped structure provided at the air supply outlet 204, the negative pressure formed at the step can be enhanced, facilitating the fresh air to enter the room from the air duct.

[0109] Advantageously, the step can be set in a form that is higher than the circulation air duct 201.

[0110] In addition, in order to further enhance the generation of negative pressure, the present invention constructs the aforementioned first step surface 208 into an arc-shaped surface shape whose depth gradually decreases in the direction away from the second step surface 209. In this way, the negative pressure effect at the first step surface 208 can be further enhanced, and the suction force on the airflow in the fresh air duct 202 can be effectively enhanced, thereby increasing the fresh air volume.

[0111] Optionally, the present invention can also form a negative pressure at the outlet of the fresh air duct 202 by changing the structure of the circulating air duct 201. For example, the circulating air duct 201 is configured to be inclined from the return air port 203 to the air supply port 204 in a direction away from the fresh air duct 202, so that during operation, the airflow will be transported in a direction away from the fresh air duct 202 during the process of being transported from the return air port 203 to the air supply port 204, so that a negative pressure can be formed on the side away from its transport direction, that is, a negative pressure is formed at the location of the fresh air duct 202, thereby effectively improving the effect of the negative pressure.

[0112] In order to further improve the negative pressure generation effect, the rotation direction of the wind wheel 23 can be changed. For example, the wind wheel 23 is configured to rotate in the direction from the return air port 203 to the air supply port 204 away from the fresh air duct 202. In this way, during the rotation of the wind wheel 23, the air flow will be transported from the return air port 203 to the air supply port 204 away from the fresh air duct 202, so that the negative pressure effect at the location of the fresh air duct 202 can be further improved.

[0113] Optionally, in the present invention, the fresh air duct 202 penetrates the duct shell 20 in the front-to-back direction, so that the fresh air can be smoothly delivered to the room from back to front through the fresh air duct 202. The running trajectory of the fresh air in the fresh air duct 202 is relatively simple, avoiding the energy loss that may be caused when the duct changes direction.

[0114] The circulation air duct 201 extends in the longitudinal direction (refer to the up-down direction in the drawings), and the rear side of the air supply port 204 is closed and the front side is open for air supply, that is, the air supply port 204 is configured to supply air forward. The air supply port 204 is configured to extend in the transverse direction (refer to the left-right direction in the drawings), thereby forming a wide range of air supply. The fresh air duct 202 is arranged at one end of the air supply port 204 in the transverse direction, so as to facilitate the formation of negative pressure at the location of the fresh air duct 202, effectively improving the generation effect of negative pressure.

[0115] The transverse, longitudinal, and front-to-back directions are perpendicular to each other.

[0116] like Figures 23 - 25 The air conditioner 1000 according to the embodiment of the present invention comprises: an air duct assembly 100 and a heat exchanger 300 . The air duct assembly 100 is the air duct assembly 100 described above. The heat exchanger 300 is disposed in the circulation air duct 201 .

[0117] According to an embodiment of the present invention, the air conditioner 1000 can selectively introduce or not introduce fresh air, and after adding a fresh air introduction structure, simple assembly can still be achieved.

[0118] Optionally, the switch member 12 abuts against the rear side of the heat exchanger 300 in the open position. The stability of the switch member 12 can be maintained to prevent the switch member 12 from being pulled out of the door frame 11.

[0119] In the present invention, the switch member 12 of the switch device 10 can be installed from the front of the fresh air duct, improving production efficiency; moreover, the pull rod 123 of the switch member 12 is hidden by the air outlet frame 24 after installation. Specifically, the front end of the pull rod 123 is hidden behind the air outlet frame 24 or inside the air outlet frame 24 and will not protrude from the air outlet frame; in addition, a handle 124 is convexly provided on the pull rod 123, and the gear position change of the fresh air door 121 can be achieved through the handle 124.

[0120] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0121] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0122] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0123] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0124] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0125] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A switching device, characterized in that, The switch device includes: A door pocket, on which there is a ventilation opening extending in the front-rear direction; A switch member movably connected to the door pocket between an open position and a closed position, and the switch member is configured to be inserted into the door pocket from front to back; Wherein, the switch member includes a damper, when the switch member is in the open position, the damper opens the ventilation opening, and when the switch member is in the closed position, the damper closes the ventilation opening; The damper includes: A closing portion configured to cover and open the ventilation opening; An embedded portion connected to the closing portion, the embedded portion is adapted to be inserted into the ventilation opening from front to back and is nested in the ventilation opening so as to be movable back and forth; The embedded portion includes: A first insert member connected to the closing portion and extending backward; A second insert member connected to the closing portion and extending backward, the first insert member and the second insert member are spaced apart in a first direction perpendicular to the front-rear direction; The door pocket further includes a guiding opening with an axis extending in the front-rear direction, and the switch member further includes: A guiding portion adapted to be inserted into the guiding opening from front to back and nested in the guiding opening so as to be movable back and forth, the guiding portion is connected to the damper.

2. The switching device according to claim 1, characterized in that, The first insert member and the second insert member are respectively embedded on opposite sides in the first direction within the ventilation opening.

3. The switching device according to claim 1, characterized in that, The width dimension of the first insert member in a second direction is the same as the width dimension of the ventilation opening, the second direction is perpendicular to the first direction and the front-rear direction.

4. The switching device according to any one of claims 1 to 3, characterized in that The second insert member includes: A first part connected to the closing portion and extending backward; A second part connected to the first part and extending backward, Wherein, the width dimension of the first part in the second direction is the same as the width dimension of the ventilation opening, and the width dimension of the second part in the second direction is smaller than the width dimension of the ventilation opening, the second direction is perpendicular to the first direction and the front-rear direction.

5. The switch device according to any one of claims 2-3, characterized in that The first insert member is in a flat plate shape; The second insert member is in a hollow tubular shape extending in the second direction perpendicular to the first direction and the front-rear direction.

6. The switching device according to claim 1, characterized in that, The door pocket is in a tubular shape extending in the front-rear direction, the rear end of the door pocket is open and in a wedge-shaped structure, the ventilation opening and the guiding opening are arranged at intervals in a direction perpendicular to the front-rear direction at the front end of the door pocket.

7. The switching device according to any one of claims 1 to 3 and 6, characterized in that A limiting portion is provided on the switch member, and when the switch member is in the closed position, the limiting portion abuts against the front side of the door pocket.

8. The switching device according to any one of claims 1 to 3, characterized in that, The switch member further includes: A pull rod connected to the damper and extending forward, Wherein, a handle perpendicular to the pull rod is provided at one end of the pull rod far from the door pocket.

9. An air duct assembly, characterized in that, Including: An air duct housing in which a circulating air duct and a fresh air duct are formed, and an air supply port communicating with the return air port of the circulating air duct is provided on the air duct housing; An air wheel provided in the circulating air duct; An air outlet frame, the air outlet frame is arranged on the air duct housing and is opposite to the air supply port; A switching device, the switching device is the switching device according to any one of claims 1-8, the switching device is installed on the air duct housing for opening and closing the fresh air duct.

10. The air duct assembly according to claim 9, characterized in that, The door sleeve is nested in the fresh air duct, and the switching member is adapted to be installed on the door sleeve from front to back.

11. The air duct assembly according to claim 9, characterized in that, The air damper is connected with a pull rod extending forward, and the pull rod extends to be adjacent to the air outlet frame and does not extend out of the air outlet frame.

12. The air duct assembly according to claim 9, characterized in that, The air duct housing includes: A rear air duct, a fresh air inlet and the circulation air duct are arranged on the rear air duct; A front air duct, the front air duct is arranged on the front side of the rear air duct, a fresh air outlet and an air guiding port are arranged on the front air duct, the fresh air outlet and the fresh air inlet are opposite to each other front and back and jointly form the fresh air duct, the air guiding port and the air outlet end of the circulation air duct are opposite to each other front and back and jointly form the air supply port, wherein, the door sleeve is nested in the fresh air inlet, and the switching member is adapted to be installed on the door sleeve from front to back.

13. The air duct assembly according to claim 12, characterized in that, The switching member abuts against the rear side of the front air duct in the open position.

14. The air duct assembly according to claim 12, wherein The air duct may further include: A cover plate, the cover plate covers the front side of the rear air duct to seal the circulation air duct, and the air return port is formed on the cover plate.

15. An air conditioner, characterized in that, Including: An air duct assembly, the air duct assembly is the air duct assembly according to any one of claims 9-14; A heat exchanger, the heat exchanger is arranged in the circulation air duct.

16. The air conditioner according to claim 15, characterized in that, The switching member abuts against the rear side of the heat exchanger in the open position.

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