Bidirectional fresh air module and air conditioner

Abstract

According to the bidirectional fresh air module, a fresh air fan is installed in a fresh air volute, and outdoor air can enter the fresh air volute from a fresh air inlet and then enter a room through rotation of the fresh air fan; the air exhaust fan is installed in the air exhaust volute, the air exhaust fan rotates to enable indoor air to enter the air exhaust volute from the air exhaust inlet to be exhausted out of the room, and the fresh air pipe is connected to the fresh air inlet; the exhaust pipe is connected to the exhaust air outlet; a partition piece is arranged in the two-way air pipe and divides a pipe cavity of the two-way air pipe into a fresh air inlet cavity and an exhaust air outlet cavity which are distributed side by side, the fresh air inlet cavity enables the fresh air pipe to be communicated with the outside, and the exhaust air outlet cavity enables the exhaust pipe to be communicated with the outside. According to the bidirectional fresh air module, heat transfer and heat exchange can be conducted between indoor inlet air and outdoor exhaust air through the partition piece, the temperature difference between fresh air entering a room and the indoor environment is reduced, and therefore the comfort of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field especially, and relates to a kind of bidirectional fresh air module and air conditioner. BACKGROUND

[0002] Air conditioner includes indoor unit and outdoor unit, and indoor unit and outdoor unit are installed in indoor and outdoor respectively, and are connected by corresponding pipeline and wire.Typically, in order to improve indoor air quality, air conditioner also has fresh air device and exhaust device for ventilation.

[0003] In prior art, when air conditioner draws outdoor air into indoor by fresh air device, and exhaust device expels indoor dirty air to outdoor, when the temperature difference between indoor and outdoor air is large, the temperature difference between fresh air entering indoor and indoor environment is large, and user experience is poor. SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in prior art is solved.For this purpose, the utility model provides a kind of bidirectional fresh air module, the partition of bidirectional air pipe middle separates bidirectional air pipe into fresh air inlet cavity and fresh air exhaust cavity, and indoor air inlet and outdoor exhaust can be heat transfer and heat exchange through partition, reduce the temperature difference between fresh air entering indoor and indoor environment, to improve user comfort.

[0005] According to the bidirectional fresh air module of the utility model embodiment, including: drive motor, fresh air fan, exhaust fan, fresh air volute, exhaust volute;The fresh air fan is the centrifugal fan of axial inlet and radial outlet, and the fresh air fan is power connected with the drive motor;The exhaust fan is the centrifugal fan of axial inlet and radial outlet, and the exhaust fan is power connected with the drive motor;The drive motor drives the fresh air fan and the exhaust fan to rotate synchronously in working state;Fresh air air duct is formed in the fresh air volute, the fresh air fan is installed in the fresh air volute, fresh air inlet and fresh air outlet are formed on the fresh air volute, and the fresh air fan can make outdoor air enter the fresh air volute from the fresh air inlet, and can make the outdoor air in the fresh air volute enter indoor from the fresh air outlet;Exhaust air duct is formed in the exhaust volute, the exhaust fan is installed in the exhaust volute, exhaust inlet and exhaust outlet are formed on the exhaust volute, and the exhaust fan can make indoor air enter the exhaust volute from the exhaust inlet, and can make the indoor air in the exhaust volute exhaust to outdoor from the exhaust outlet.

[0006] In practice, the fresh air fan is of axial air inlet and radial air outlet, and the exhaust fan is of axial air inlet and radial air outlet, the air inlet and air outlet paths are reduced, the air inlet and air outlet amounts are increased by entering fresh air along the axial direction of the fresh air fan and exhausting air along the axial direction of the exhaust fan, and the fresh air volute is provided with a fresh air inlet and a fresh air outlet, the exhaust air volute is provided with an exhaust air inlet and an exhaust air outlet, the fresh air inlet is communicated with the outside, the fresh air outlet discharges fresh air into the room, the dirty air in the room flows to the exhaust air outlet of the exhaust air volute through the exhaust air inlet, and the exhaust air outlet is communicated with the outside, so that the outdoor air can enter the room under the driving of the fresh air fan in the fresh air volute, and meanwhile, the indoor air can be exhausted to the outside under the driving of the exhaust fan in the exhaust air volute.

[0007] The bidirectional fresh air module further comprises a fresh air pipe, an exhaust air pipe and a bidirectional air pipe, the fresh air pipe is connected to the fresh air inlet, the exhaust air pipe is connected to the exhaust air outlet, and the bidirectional air pipe is provided with a partition, the partition divides the lumen of the bidirectional air pipe into a fresh air inlet cavity and an exhaust air outlet cavity which are arranged side by side, the fresh air inlet cavity is communicated with the fresh air pipe and the outside, and the exhaust air outlet cavity is communicated with the exhaust air pipe and the outside.

[0008] Therefore, the outdoor fresh air enters the fresh air inlet cavity of the bidirectional air pipe and then enters the fresh air volute, and meanwhile, the indoor dirty air enters the exhaust air volute from the exhaust air inlet and then is exhausted to the outside from the exhaust air outlet of the exhaust air volute, the dirty air and the fresh air exchange heat in the bidirectional air pipe through the partition, heat exchange is realized between the fresh air entering the room and the dirty air exhausted to the outside, so that the temperature difference between the fresh air entering the room and the indoor air is reduced, and the comfort of the user in the room is improved.

[0009] When the indoor temperature is relatively high and the outdoor temperature is relatively low, the dirty air in the room is exhausted to the outside, and the temperature of the dirty air is relatively high, while the fresh air in the outside enters the room, and the temperature of the fresh air is relatively low, so that the low-temperature fresh air and the high-temperature dirty air exchange heat through the partition, the temperature of the fresh air entering the room is increased, and the temperature of the dirty air exhausted to the outside is reduced because the dirty air absorbs the heat of the fresh air entering the room in the bidirectional air pipe, so that the temperature difference between the fresh air entering the room and the indoor environment is reduced, and the comfort of the user is improved.

[0010] According to the bidirectional fresh air module, at least one of the fresh air pipe, the exhaust air pipe and the bidirectional air pipe is configured as a flexible pipe, the flexible pipe is configured as a bellows pipe, and the outer peripheral wall of the bellows pipe is formed with protruding bellows reinforcing ribs.

[0011] At least one of the fresh air pipe, the exhaust air pipe and the bidirectional air pipe is arranged as a flexible pipe, which can improve the convenience and flexibility of installation, for example, the bidirectional air pipe is arranged as a flexible pipe, so that the bidirectional air pipe can be arranged at a position capable of being connected with the exhaust air pipe and the fresh air pipe according to actual conditions, thereby improving the flexibility of installation, for example, in a limited space, the flexible pipe can easily bypass obstacles, the path of the fresh air entering the fresh air inlet from the outdoor can be changed, and the path of the exhaust air being discharged to the outdoor through the exhaust air outlet can also be changed, thereby achieving effective exhaust and intake.In addition, the outer peripheral wall of the flexible pipe is formed with protruding corrugated reinforcing ribs, which can also improve the strength of the corrugated pipe and reduce the influence of the external environment on the corrugated pipe.

[0012] According to the bidirectional fresh air module, the pipe cavity of the bidirectional air pipe is constructed as a trapezoidal cavity, and the partition is connected between the inner top wall and the inner bottom wall of the trapezoidal cavity.

[0013] In practice, the trapezoidal cavity can increase the cross-sectional area of the pipe cavity of the bidirectional fresh air module, that is, the volume of the fresh air inlet cavity and the exhaust air outlet cavity is increased, thereby improving the efficiency of the outdoor fresh air entering the indoor and the indoor old air flowing to the outdoor; at the same time, the trapezoidal cavity can improve the structural stability of the bidirectional air pipe, reduce the problem that the flexible pipe is extruded to cause structural deformation due to the influence of the external environment, and keep the air inlet and outlet unobstructed.

[0014] According to the bidirectional fresh air module, the fresh air joint is connected to the fresh air pipe, the fresh air joint has a first fresh air plug-in end, and the first fresh air plug-in end is in plug-in cooperation with the end of the fresh air inlet cavity; wherein the fresh air joint has a second fresh air plug-in end, and the second fresh air plug-in end is in plug-in cooperation with the fresh air pipe.

[0015] That is, the fresh air joint is an intermediate piece for connecting the fresh air inlet cavity of the bidirectional air pipe and the fresh air pipe, the convenience of connection and the adaptability of communication between the fresh air inlet cavity of the bidirectional air pipe and the fresh air pipe are improved by arranging the fresh air joint, and the first fresh air plug-in end of the fresh air joint is in plug-in cooperation with the end of the fresh air inlet cavity, and the second fresh air plug-in end at the other end is in plug-in cooperation with the fresh air pipe, thereby also improving the installation efficiency and facilitating the connection.

[0016] According to the bidirectional fresh air module, the exhaust air joint is connected to the exhaust air pipe, the exhaust air joint has a first exhaust air plug-in end, and the first exhaust air plug-in end is in plug-in cooperation with the end of the exhaust air outlet cavity; wherein the exhaust air joint has a second exhaust air plug-in end, and the second exhaust air plug-in end is in plug-in cooperation with the exhaust air pipe.

[0017] Similarly, the exhaust connection is the intermediate part for the communication between the exhaust outlet cavity of the bidirectional air pipe and the exhaust pipe, the exhaust connection is arranged to improve the fitting degree of the connection between the exhaust outlet cavity of the bidirectional air pipe and the exhaust pipe, and the exhaust connection is connected with the exhaust pipe and the bidirectional air pipe in a plug-in mode, so that the installation efficiency of the exhaust connection is improved.

[0018] According to the bidirectional fresh air module, the fresh air pipe is provided with a fresh air mounting connector, and the fresh air mounting connector is in plug-in cooperation with the fresh air inlet; and / or the exhaust pipe is provided with an exhaust mounting connector, and the exhaust mounting connector is in plug-in cooperation with the exhaust outlet.

[0019] The fresh air mounting connector is arranged to facilitate the cooperative connection between the fresh air pipe and the fresh air inlet of the fresh air volute, and the exhaust mounting connector is also arranged to facilitate the cooperative connection with the exhaust outlet of the exhaust volute, thereby improving the adaptability, reliability and sealing performance of the connection.

[0020] According to the bidirectional fresh air module, the fresh air mounting connector is provided with a first fresh air clamping part, the fresh air inlet is provided with a first fresh air matching part, and the first fresh air clamping part is in clamping and limiting cooperation with the first fresh air matching part; and / or the exhaust mounting connector is provided with a first exhaust clamping part, the exhaust outlet is provided with a first exhaust matching part, and the first exhaust clamping part is in clamping and limiting cooperation with the first exhaust matching part.

[0021] In practice, the fresh air inlet extends outward to form a fresh air inlet mounting end, the fresh air inlet mounting end is provided with at least a first fresh air matching part, and the fresh air mounting connector is provided with a first fresh air clamping part matched with the first fresh air matching part, so that when the fresh air mounting connector is mounted on the fresh air inlet end, the first fresh air matching part is matched with the first fresh air clamping part, for example, the first fresh air matching part and the first fresh air clamping part are respectively a protrusion and a groove, thereby improving the reliability of the connection and reducing the risk of the fresh air mounting connector falling off the fresh air inlet, that is, reducing the risk of the fresh air pipe falling off the fresh air inlet.

[0022] Similarly, the exhaust outlet is provided with an exhaust outlet mounting end extending outward, the exhaust outlet mounting end is provided with at least a first exhaust matching part, and the first exhaust clamping part of the exhaust mounting connector is in limiting cooperation with the first exhaust matching part of the exhaust outlet mounting end, thereby reducing the risk of the exhaust pipe falling off the exhaust outlet.

[0023] According to the bidirectional fresh air module, the thickness of the pipe wall of the bidirectional air pipe is D1, and satisfies: 0.5mm≤D1≤1.5mm; and / or the partition is a partition plate, the thickness of the partition plate is D2, and satisfies: 0.5mm≤D2≤1.5mm.

[0024] The wall thickness of the bidirectional air duct is limited, the strength of the bidirectional air duct is improved, the risk of deformation of the bidirectional air duct is reduced, the volume of the fresh air inlet cavity and the exhaust air outlet cavity formed by the bidirectional air duct is controllable, the stability of the outdoor fresh air flowing into the indoor and the stability of the indoor dirty air flowing to the outdoor are maintained, and the thickness of the partition plate is limited, the strength of the partition plate is improved, the partition plate has the supporting effect on the bidirectional air duct, the thickness of the partition plate is not too thick, the thickness range of the partition plate is limited, the strength is ensured, and the heat transfer and exchange effect is better.

[0025] According to the bidirectional fresh air module, the driving motor comprises a stator part, a rotor part, a motor shell and a motor output shaft; the stator part is provided with a coil; the rotor part is arranged outside the stator part in the radial direction of the stator part; the motor shell is connected with the rotor part; the motor output shaft is fixedly connected with the motor shell; wherein the exhaust fan is sleeved outside the radial direction of the motor shell, the exhaust fan is fixedly connected with the motor shell, and the fresh air fan is connected with the motor output shaft.

[0026] The driving motor selects an outer rotor motor, the outer rotor motor has a simple structure, the rotor part is arranged outside the stator part in the radial direction of the stator part, the diameter of the rotor part is large, a large torque can be obtained, the outer rotor motor can be used in low-speed large-torque, direct driving and other scenes, the driving motor can not be provided with a reducer to reduce speed and increase torque when outputting power outward, and the space occupied by the reducer is saved. The motor shell is fixedly connected with the rotor part, and the motor shell and the rotor part rotate synchronously. In this way, the rotor part can be fixed by the motor shell, the exhaust fan is connected with the outside, the fresh air fan is connected with the motor output shaft, that is, when the rotor part of the driving motor rotates, the fresh air fan and the exhaust fan can rotate together, one driving motor drives fresh air to enter the indoor and drives dirty air in the indoor to the outdoor, and the cost of driving is reduced.

[0027] The utility model discloses an air conditioner, including bidirectional fresh air module of above.

[0028] The air conditioner has the same advantages as the prior art and the bidirectional fresh air module, which will not be repeated here.

[0029] Additional aspects and advantages of the present application will be made apparent in the following description, some of which will be realized only on practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0030] The above and / or additional aspects and advantages of the present utility model will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings of which:

[0031] Figure 1 Is the structure schematic diagram of bidirectional fresh air module of the embodiment of the present utility model not installing bidirectional air pipe;

[0032] Figure 2 Is the structure schematic diagram of bidirectional air pipe of bidirectional fresh air module of the embodiment of the present utility model;

[0033] Figure 3 Is the local schematic diagram of bidirectional air pipe of bidirectional fresh air module of the embodiment of the present utility model;

[0034] Figure 4 Is the A-A direction sectional view of the embodiment of the present utility model; Figure 1

[0035] Figure 5 Is the schematic diagram of another perspective of bidirectional fresh air module of the embodiment of the present utility model not installing bidirectional air pipe;

[0036] Figure 6 Is the B-B direction sectional local schematic diagram of the embodiment of the present utility model; Figure 5

[0037] Figure 7 Is the sectional schematic diagram of installing fresh air pipe and fresh air inlet of the embodiment of the present utility model;

[0038] Figure 8 Is the structure schematic diagram of installing between fresh air pipe and fresh air joint of the embodiment of the present utility model;

[0039] Figure 9 Is the local structure schematic diagram of bidirectional fresh air module of the embodiment of the present utility model not installing bidirectional air pipe;

[0040] Figure 10 Is the installation schematic diagram of exhaust pipe and exhaust outlet of bidirectional fresh air module of the embodiment of the present utility model;

[0041] Figure 11 Is the structure schematic diagram of installing between exhaust pipe and exhaust joint of the embodiment of the present utility model;

[0042] Figure 12 Is the explosion schematic diagram of driving motor of the embodiment of the present utility model.

[0043] Reference signs:

[0044] ​​Fresh air volute 1, fresh air outlet 11, fresh air pipe 12, fresh air joint 121, first fresh air plug-in end 1211, second fresh air plug-in end 1212, fresh air mounting joint 122, first fresh air clamping part 1221, fresh air inlet 13, first fresh air matching part 131, fresh air matching inclined surface 1311, fresh air fan 14,

[0045] Exhaust air volute 2, exhaust air inlet 21, exhaust air pipe 22, exhaust air joint 221, first exhaust air plug-in end 2211, second exhaust air plug-in end 2212, exhaust air mounting joint 222, first exhaust air clamping part 2221, exhaust air outlet 23, first exhaust air matching part 231, exhaust air matching inclined surface 2311, exhaust air fan 24,

[0046] Bidirectional air pipe 3, exhaust air outlet cavity 31, fresh air inlet cavity 32, partition 33, corrugated reinforcing rib 34, trapezoidal inclined edge 35, upper trapezoidal edge 36, lower trapezoidal edge 37, trapezoidal height edge 38,

[0047] Driving motor 4, stator part 41, rotor part 42, motor shell 43, motor output shaft 44. DETAILED DESCRIPTION

[0048] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0049] In the description of the present application, it should be understood that the orientations or positional relationships indicated by 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" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features limited as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0050] In the description of the utility model, it is to be explained that, unless there is definite stipulation and limitation, the term "mount", "link", "connect" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements.For the ordinary skill in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific circumstances.

[0051] Reference is made below Figures 1-12 The bidirectional fresh air module according to the embodiment of the utility model separates the bidirectional air pipe 3 into a fresh air inlet cavity 32 and an exhaust air outlet cavity 31 by a partition 33 in the middle of the bidirectional air pipe 3, the fresh air pipe 12 is in communication with the fresh air inlet cavity 32, the exhaust air pipe 22 is in communication with the exhaust air outlet cavity 31, and the fresh air entering the room and the exhaust air exhausted to the outside can exchange heat through the partition 33, so that the temperature difference between the fresh air entering the room and the indoor environment is reduced under the premise that the temperature difference between the indoor and outdoor is large, thereby improving the user's comfort.

[0052] As Figures 1-12 shown, the bidirectional fresh air module according to one embodiment of the utility model, as Figure 1 and Figure 4 shown, comprises: a driving motor 4, a fresh air fan 14 and an exhaust air fan 24, the fresh air fan 14 is an axial inlet and radial outlet centrifugal fan, the fresh air fan 14 is power connected with the driving motor 4;The exhaust air fan 24 is an axial inlet and radial outlet centrifugal fan, the exhaust air fan 24 is power connected with the driving motor 4;The driving motor 4 drives the fresh air fan 14 and the exhaust air fan 24 to rotate synchronously in the working state, so that the outdoor fresh air can enter the room and the indoor dirty air can flow out of the room through one driving motor 4, and through one driving motor 4 as a power source, the cost can be saved.

[0053] In addition, as Figure 1 shown, the bidirectional fresh air module further comprises a fresh air volute 1, a fresh air air duct is formed in the fresh air volute 1, the fresh air fan 14 is installed in the fresh air volute 1, the fresh air volute 1 is formed with a fresh air inlet 13 and a fresh air outlet 11, the fresh air fan 14 can make the outdoor fresh air enter the fresh air volute 1 from the fresh air inlet 13, and the outdoor fresh air entering the fresh air volute 1 can enter the room from the fresh air outlet 11.

[0054] The fresh air outlet 11 can be located at the front side of the fresh air volute 1, when the fresh air enters the room from the fresh air outlet 11, it is more convenient to face the indoor personnel at the front side below, and the comfort of the indoor personnel is improved. And the fresh air flows to the fresh air fan 14 in the axial direction of the fresh air fan 14 and flows radially, that is, the fresh air inlet 13 is arranged on one side of the axial direction of the fresh air fan 14, and in practice, the fresh air inlet 13 can be arranged on one side of the axial direction of the fresh air fan 14 and along the radial direction of the fresh air volute 1, when the fresh air flows to the fresh air volute 1 in the radial direction of the fresh air volute 1, the airflow enters the fresh air fan 14 in the axial direction, thereby reducing the path resistance of the fresh air flowing to the fresh air fan 14, and improving the fresh air inlet amount.

[0055] Continuing to refer to Figure 1 and Figure 4 , the exhaust air volute 2 forms an exhaust air duct, the exhaust air fan 24 is installed in the exhaust air volute 2, the exhaust air volute 2 is formed with an exhaust air inlet 21 and an exhaust air outlet 23, and the exhaust air fan 24 rotates to enable indoor air to enter the exhaust air volute 2 from the exhaust air inlet 21 and to enable the indoor air entering the exhaust air volute 2 to be exhausted to the outdoor environment from the exhaust air outlet 23.

[0056] The exhaust air inlet 21 is located Figure 1 above the fresh air outlet 11, when the indoor dirty air enters the exhaust air volute 2 in the axial direction and above the exhaust air volute 2, the air can directly enter in the axial direction, and compared with the radial inlet in the prior art, the dirty air is easily affected by the side wall of the exhaust air volute 2, and there is a large airflow driving resistance, that is, the exhaust air directly enters in the axial direction in the embodiment of the utility model, so that the air resistance such as shielding of the exhaust air inlet can be reduced, the inlet path is reduced, the exhaust air inlet amount is improved, and the mutual influence of the fresh air and the dirty air can be reduced.

[0057] Figure 1 In the embodiment, the bidirectional fresh air module further includes a fresh air pipe 12 and an exhaust air pipe 22, the fresh air pipe 12 is connected to the fresh air inlet 13, and the exhaust air pipe 22 is connected to the exhaust air outlet 23, that is, the indoor dirty air enters the exhaust air volute 2 from the exhaust air inlet 21 and flows to the exhaust air pipe 22 from the exhaust air outlet 23, the exhaust air pipe 22 is in communication with the outdoor space, so that the transition between the bidirectional fresh air module in the indoor main machine and the outdoor space is formed through the exhaust air pipe 22.

[0058] Similarly, the fresh air enters the fresh air volute 1 from the outdoor environment and flows to the indoor environment through the fresh air outlet 11, that is, the fresh air pipe 12 can realize the transition and communication between the indoor environment and the outdoor environment.

[0059] The bidirectional fresh air module further comprises a bidirectional air pipe 3, the bidirectional air pipe 3 is internally provided with a partition piece 33, the partition piece 33 divides the pipe cavity of the bidirectional air pipe 3 into a fresh air inlet cavity 32 and an exhaust air outlet cavity 31 which are distributed side by side, the fresh air inlet cavity 32 is communicated with the outdoor through the fresh air pipe 12, and the exhaust air outlet cavity 31 is communicated with the outdoor through the exhaust air pipe 22.

[0060] The fresh air pipe 12 is connected to one side in the radial direction of the fresh air volute 1, the exhaust air pipe 22 is connected to one side in the radial direction of the exhaust air volute 2, and the fresh air pipe 12 and the exhaust air pipe 22 gradually approach each other from one end close to the fresh air volute 1 and the exhaust air volute 2 to one end far away from the fresh air volute 1 and the exhaust air volute 2, and the exhaust air pipe 22 and the fresh air pipe 12 are connected to the bidirectional air pipe 3 at the end close to each other, the exhaust air pipe 22 is communicated with the exhaust air outlet cavity 31 of the bidirectional air pipe 3, and the fresh air pipe 12 is communicated with the fresh air inlet cavity 32 of the bidirectional air pipe 3, that is, the fresh air pipe 12 and the exhaust air pipe 22 are jointly connected through the integrally arranged bidirectional air pipe 3, so that the pipeline material is saved and the space is saved.

[0061] Further, the outdoor air enters the fresh air volute 1 through the fresh air inlet cavity 32 of the bidirectional air pipe 3, the fresh air flows to the indoor through the fresh air outlet 11 of the fresh air volute 1, meanwhile, the dirty air in the indoor enters the exhaust air inlet 21 of the exhaust air volute 2, and is communicated with the exhaust air outlet cavity 31 of the bidirectional air pipe 3 through the exhaust air outlet 23, so that the dirty air in the indoor flows to the outdoor, and the fresh air inlet cavity 32 and the exhaust air outlet cavity 31 are separated by the partition piece 33, the air flow directions of the fresh air inlet cavity 32 and the exhaust air outlet cavity 31 are opposite, when the outdoor fresh air enters the indoor, the heat can be transferred to the dirty air flowing to the outdoor through the partition piece 33, so that the fresh air entering the indoor and the dirty air flowing to the outdoor are exchanged, and the temperature difference between the fresh air entering the indoor and the indoor environment is reduced.

[0062] When the indoor temperature is relatively high and the outdoor temperature is relatively low, the dirty air in the indoor flows to the outdoor, and the outdoor fresh air enters the indoor, so the temperature of the outdoor fresh air is lower than that of the indoor, and the temperature of the dirty air flowing to the outdoor is higher than that of the outdoor, then the low-temperature fresh air and the high-temperature dirty air are exchanged through the partition piece 33, so that the temperature of the fresh air entering the indoor is increased, and the temperature of the dirty air flowing to the outdoor is reduced, and the temperature difference between the fresh air entering the indoor and the indoor environment is reduced, so that the comfort of the user is improved.

[0063] Combination Figure 1 , Figure 2 and Figure 3As shown, at least one of the fresh air pipe 12, the exhaust air pipe 22 and the bidirectional air pipe 3 is configured as a flexible pipe; that is, the fresh air pipe 12, the exhaust air pipe 22 and the bidirectional air pipe 3 can all be provided as flexible pipes, or one or two of the fresh air pipe 12, the exhaust air pipe 22 and the bidirectional air pipe 3 is provided as a flexible pipe. The material of the flexible pipe can include rubber, polyester cloth, polyethylene, aluminum foil composite material and polyvinyl chloride, etc., and has the properties of high temperature resistance, corrosion resistance and oxidation resistance.

[0064] As the bidirectional air pipe 3 is provided as a flexible pipe, the bidirectional air pipe 3 can be arranged at a position which can be installed with the exhaust air pipe 22 and the fresh air pipe 12 according to the actual situation, improving the flexibility of installation. For example, in a place with limited space, the flexible pipe can easily bypass obstacles, and can change the path of the fresh air entering the fresh air inlet 13 from the outdoor, or change the path of the exhaust air being discharged to the outdoor through the exhaust air outlet 23, achieving effective exhaust and air intake according to the actual layout of the position, etc.

[0065] In addition, the outer peripheral wall of the flexible pipe is formed with protruding corrugated reinforcing ribs 34, and the corrugated reinforcing ribs 34 are multiple and are distributed at intervals, improving the strength of the corrugated pipe and reducing the influence of the external environment on the corrugated pipe, such as bearing a larger pressure and load, not easy to be deformed and broken, etc.

[0066] In combination Figure 2 and Figure 3 As shown, the lumen of the bidirectional air pipe 3 is configured as a trapezoidal cavity, and the partition piece 33 is connected between the inner top wall and the inner bottom wall of the trapezoidal cavity. In practice, the extension length of the partition piece 33 is at least equal to the length of the bidirectional air pipe 3, and the partition piece 33 can be a partition plate which separates the bidirectional air pipe 3 into the fresh air inlet cavity 32 and the exhaust air outlet cavity 31; when the lumen of the bidirectional air pipe 3 is configured as a trapezoidal cavity, the stability of the bidirectional air pipe 3 can be improved.

[0067] Figure 3 In the embodiment, the trapezoidal cavity is surrounded by an upper trapezoidal edge 36, a lower trapezoidal edge 37, a trapezoidal height edge 38 and a trapezoidal oblique edge 35, the partition piece 33 is connected between the upper trapezoidal edge 36 and the lower trapezoidal edge 37, and separates the bidirectional air pipe 3 into the fresh air inlet cavity 32 and the exhaust air outlet cavity 31, and the upper trapezoidal edge 36 and the lower trapezoidal edge 37 are approximately parallel, so that the stability of the partition piece 33 can be improved, and the stability of the entire bidirectional air pipe 3 along the distribution direction of the upper trapezoidal edge 36 and the lower trapezoidal edge 37 is also improved.

[0068] In addition, the section of the fresh air inlet cavity 32 is formed as another trapezoid, the section of the exhaust air outlet cavity 31 is a rectangle, and the section area of the fresh air inlet cavity 32 is larger than that of the exhaust air outlet cavity 31, which can improve the efficiency of the fresh air entering the room. However, the section area of the fresh air inlet cavity 32 should not be set too large, so as to avoid poor heat transfer effect, that is, the fresh air inlet cavity 32 can be set slightly larger on the basis of ensuring heat exchange between the fresh air inlet and the exhaust air outlet.

[0069] The trapezoidal cavity of the duct cavity of the bidirectional air duct 3 increases the volume of the duct cavity of the bidirectional air duct 3, and accordingly increases the volume of the fresh air inlet cavity 32 and the exhaust air outlet cavity 31, thereby improving the efficiency of the outdoor fresh air entering the room and the indoor old air flowing to the outdoor. At the same time, the trapezoidal cavity can improve the structural stability of the bidirectional air duct 3, reduce the problem that the flexible tube is extruded to cause structural deformation due to the influence of the external environment, and keep the air inlet and air outlet unobstructed.

[0070] As shown in Figure 1 , Figure 8 , the bidirectional fresh air module further comprises a fresh air connector 121, the fresh air connector 121 is connected to the fresh air pipe 12, the fresh air connector 121 has a first fresh air plug-in end 1211, the first fresh air plug-in end 1211 is plug-in matched with the end of the fresh air inlet cavity 32; wherein the fresh air connector 121 has a second fresh air plug-in end 1212, the second fresh air plug-in end 1212 is plug-in matched with the fresh air pipe 12.

[0071] The outer peripheral wall of the first fresh air plug-in end 1211 is adapted to the inner wall caliber of the fresh air inlet cavity 32 of the bidirectional air duct 3, that is, the first fresh air plug-in end 1211 is plug-in in the fresh air inlet cavity 32 of the bidirectional air duct 3, and the outer peripheral wall of the second fresh air plug-in end 1212 is adapted to the inner wall caliber of the fresh air pipe 12, and the second fresh air plug-in end 1212 is plug-in in the fresh air pipe 12.

[0072] The fresh air connector 121 is an intermediate piece for connecting the fresh air inlet cavity 32 of the bidirectional air duct 3 and the fresh air pipe 12, by setting the fresh air connector 121, the convenience of connection and the adaptability of communication between the fresh air inlet cavity 32 of the bidirectional air duct 3 and the fresh air pipe 12 are improved, and the first fresh air plug-in end 1211 of the fresh air connector 121 is plug-in matched with the end of the fresh air inlet cavity 32, and the second fresh air plug-in end 1212 at the other end is plug-in matched with the fresh air pipe 12, which also improves the installation efficiency and connection convenience.

[0073] As shown in Figure 1 , 11As shown, the bidirectional fresh air module further comprises an exhaust air connector 221 connected to the exhaust air pipe 22, the exhaust air connector 221 has a first exhaust air plug-in end 2211 which is in plug-in cooperation with the end of the exhaust air outlet cavity 31; wherein the exhaust air connector 221 has a second exhaust air plug-in end 2212 which is in plug-in cooperation with the exhaust air pipe 22.

[0074] Similarly, the exhaust air connector 221 serves as an intermediate piece for communication between the exhaust air outlet cavity 31 of the bidirectional air pipe 3 and the exhaust air pipe 22. By providing the exhaust air connector 221, the adaptability of the connection between the exhaust air outlet cavity 31 and the exhaust air pipe 22 is improved, and the exhaust air connector 221 is connected to the exhaust air pipe 22 and the bidirectional air pipe 3 in a plug-in manner, which improves the installation efficiency of the exhaust air connector 221.

[0075] Referring to Figure 6 , Figure 7 and Figure 10 As shown, the fresh air pipe 12 is provided with a fresh air installation connector 122 which is in plug-in cooperation with the fresh air inlet 13; and / or the exhaust air pipe 22 is provided with an exhaust air installation connector 222 which is in plug-in cooperation with the exhaust air outlet 23.

[0076] In practice, the fresh air inlet 13 can be provided with a fresh air inlet installation end extending towards the outside. By connecting the fresh air installation connector 122 with the fresh air inlet installation end, the connection between the fresh air pipe 12 and the fresh air inlet 13 can be achieved, for example, the fresh air installation connector 122 can be plugged into the inner periphery of the fresh air inlet installation end, or the fresh air inlet installation end can be plugged into the inner periphery of the fresh air installation connector 122, to achieve the installation between the fresh air installation connector 122 and the fresh air inlet 13. In addition, the hardness of the fresh air connector 121 of the fresh air pipe 12 and the fresh air installation connector 122 is greater than that of other positions, thereby improving the reliability of the installation of the fresh air pipe 12 at the fresh air inlet 13.

[0077] Of course, the cooperation mode of the exhaust air installation connector 222 and the exhaust air outlet 23 can also adopt the cooperation mode of the fresh air installation connector 122 and the fresh air inlet 13 described above. The plug-in mode between the exhaust air installation connector 222 and the exhaust air outlet 23 can improve the adaptability, reliability and sealing performance of the connection. In addition, the hardness of the exhaust air connector 221 of the exhaust air pipe 22 and the exhaust air installation connector 222 is greater than that of other positions, thereby improving the reliability of the installation of the exhaust air pipe 22 at the exhaust air outlet 23.

[0078] Referring to Figure 7As shown, the fresh air mounting connector 122 is provided with a first fresh air clamping portion 1221, and the fresh air inlet 13 is provided with a first fresh air matching portion 131. The first fresh air clamping portion 1221 and the first fresh air matching portion 131 are clamped and limited in cooperation. One of the first fresh air clamping portion 1221 and the first fresh air matching portion 131 is configured as a protrusion, and the other is configured as a groove. For example, the first fresh air clamping portion 1221 is a groove, and the first fresh air matching portion 131 is a protrusion. The protrusion is provided with a fresh air matching inclined surface 1311. When the first fresh air clamping portion 1221 cooperates with the first fresh air matching portion 131, the fresh air mounting connector 122 is opposite to the fresh air inlet 13, and the fresh air mounting connector 122 is pressed along the fresh air matching inclined surface 1311 of the fresh air inlet 13, so that the protrusion cooperates with the groove, improves the smoothness of cooperation, and improves the stability and reliability of cooperation through the cooperation between the first fresh air matching portion 131 and the first fresh air clamping portion 1221.

[0079] As shown, the fresh air mounting connector 122 is provided with a first fresh air clamping portion 1221, and the fresh air inlet 13 is provided with a first fresh air matching portion 131. The first fresh air clamping portion 1221 and the first fresh air matching portion 131 are clamped and limited in cooperation. One of the first fresh air clamping portion 1221 and the first fresh air matching portion 131 is configured as a protrusion, and the other is configured as a groove. For example, the first fresh air clamping portion 1221 is a groove, and the first fresh air matching portion 131 is a protrusion. The protrusion is provided with a fresh air matching inclined surface 1311. When the first fresh air clamping portion 1221 cooperates with the first fresh air matching portion 131, the fresh air mounting connector 122 is opposite to the fresh air inlet 13, and the fresh air mounting connector 122 is pressed along the fresh air matching inclined surface 1311 of the fresh air inlet 13, so that the protrusion cooperates with the groove, improves the smoothness of cooperation, and improves the stability and reliability of cooperation through the cooperation between the first fresh air matching portion 131 and the first fresh air clamping portion 1221. Figure 10 As shown, the fresh air mounting connector 122 is provided with a first fresh air clamping portion 1221, and the fresh air inlet 13 is provided with a first fresh air matching portion 131. The first fresh air clamping portion 1221 and the first fresh air matching portion 131 are clamped and limited in cooperation. One of the first fresh air clamping portion 1221 and the first fresh air matching portion 131 is configured as a protrusion, and the other is configured as a groove. For example, the first fresh air clamping portion 1221 is a groove, and the first fresh air matching portion 131 is a protrusion. The protrusion is provided with a fresh air matching inclined surface 1311. When the first fresh air clamping portion 1221 cooperates with the first fresh air matching portion 131, the fresh air mounting connector 122 is opposite to the fresh air inlet 13, and the fresh air mounting connector 122 is pressed along the fresh air matching inclined surface 1311 of the fresh air inlet 13, so that the protrusion cooperates with the groove, improves the smoothness of cooperation, and improves the stability and reliability of cooperation through the cooperation between the first fresh air matching portion 131 and the first fresh air clamping portion 1221.

[0080] One of the first fresh air clamping portion 1221 and the first fresh air matching portion 131 is configured as a protrusion, and the other is configured as a groove. For example, the first fresh air clamping portion 1221 is a groove, and the first fresh air matching portion 131 is a protrusion. The protrusion is provided with a fresh air matching inclined surface 1311. When the first fresh air clamping portion 1221 cooperates with the first fresh air matching portion 131, the fresh air mounting connector 122 is opposite to the fresh air inlet 13, and the fresh air mounting connector 122 is pressed along the fresh air matching inclined surface 1311 of the fresh air inlet 13, so that the protrusion cooperates with the groove, improves the smoothness of cooperation, and improves the stability and reliability of cooperation through the cooperation between the first fresh air matching portion 131 and the first fresh air clamping portion 1221.

[0081] The first fresh air clamping part 1221 and the first fresh air matching part 131 can be provided in plurality, and the plurality of first fresh air clamping parts 1221 and the plurality of first fresh air matching parts 131 are matched and connected one by one, the plurality of first fresh air matching parts 131 are distributed along the circumference of the fresh air inlet 13, and the plurality of first fresh air clamping parts 1221 are distributed along the circumference of the fresh air mounting joint 122, so that the connection reliability of the fresh air mounting joint 122 and the fresh air inlet 13 is improved, and the stress is uniform after connection; similarly, the first exhaust air clamping part 2221 and the first exhaust air matching part 231 can also be provided in plurality, and the plurality of first exhaust air clamping parts 2221 and the plurality of first exhaust air matching parts 231 are matched and connected one by one, which can also ensure the reliability and stress uniformity of the exhaust air mounting joint 222 mounted at the exhaust air outlet 23.

[0082] The thickness of the pipe wall of the bidirectional air pipe 3 is D1, and satisfies: 0.5mm≤D1≤1.5mm; and / or, the partition piece 33 is configured as a partition plate, the thickness of the partition plate is D2, and satisfies: 0.5mm≤D2≤1.5mm. That is, the thickness of the pipe wall of the bidirectional air pipe 3 and the thickness of the partition piece 33 both satisfy the above corresponding data range, or the pipe wall thickness satisfies the corresponding data range, or the partition piece 33 satisfies the corresponding data range.

[0083] In the design, the thickness of the pipe wall of the bidirectional air pipe 3 can be 0.5mm, 0.8mm, 1mm, etc. By limiting the wall thickness of the bidirectional air pipe 3, the strength of the bidirectional air pipe 3 is improved, and the risk of deformation of the bidirectional air pipe 3 is reduced, so that the volume of the fresh air inlet cavity 32 and the exhaust air outlet cavity 31 formed by the bidirectional air pipe 3 is controllable, the stability of the outdoor fresh air flowing into the indoor is maintained, and the stability of the indoor contaminated air flowing to the outdoor is maintained. First, the minimum pipe wall thickness is 0.5mm, and the minimum pipe wall thickness ensures that the bidirectional air pipe 3 is not easily damaged, and the upper limit of the thickness of the pipe wall is set to 1.5mm, that is, the thickness can be further increased on the basis of 0.5mm to improve the strength, and after the strength is improved, the 1.5mm pipe wall can reduce the material cost of the bidirectional air pipe 3.

[0084] In addition, the thickness of the partition plate is also set, which can improve the strength of the partition plate and make the partition plate have a good supporting effect on the bidirectional air pipe 3, and at the same time, the thickness of the partition plate should not be too thick, and the partition plate that is too thick is easy to make the heat transfer effect decrease, thereby limiting the thickness range of the partition plate; 0.5mm is a better thickness of the partition plate required for heat transfer, but the strength of the partition plate needs to be improved, thereby the thickness of the partition plate is moderately thickened to improve the strength and supporting performance of the partition plate, but the heat exchange effect between the exhaust air and the fresh air also needs to be considered, and the partition plate should not be set too thick, but the maximum thickness of the partition plate is set to 1.5mm to ensure the best strength and achieve a better heat transfer and exchange effect.

[0085] Combining Figure 1 And Figure 12 As shown in the figure, the driving motor 4 of the bidirectional fresh air module comprises: a stator part 41 and a rotor part 42, the stator part 41 is provided with a coil, and the rotor part 42 is arranged outside the stator part 41 in the radial direction of the stator part 41; the stator part 41 and the rotor part 42 are main parts of the driving motor 4. The stator part 41 is provided with a coil, which generates an alternating magnetic field after passing through an alternating current, and the rotor part 42 generates an induction in the alternating magnetic field and rotates. The rotor part 42 is located on the radial outside of the stator part 41, has a large heat dissipation area, and has good heat dissipation performance, which is beneficial to the stable operation of the driving motor 4.

[0086] The driving motor 4 further comprises a motor shell 43 and a motor output shaft 44, the motor shell 43 is connected with the rotor part 42, and the motor output shaft 44 is fixedly connected with the motor shell 43. The exhaust fan 24 is sleeved on the radial outside of the motor shell 43, and the exhaust fan 24 is fixedly connected with the motor shell 43. The fresh air fan 14 is connected with the motor output shaft 44.

[0087] Moreover, the exhaust fan 24 is sleeved on the radial outside of the motor shell 43, that is, the distance of the motor shell 43 and the exhaust fan 24 and the fresh air fan 14 arranged in the axial direction is saved, so that the structure is more compact and occupies less space in the axial direction. By driving the driving motor 4 to drive the rotation of the exhaust fan 24 and the fresh air fan 14 at the same time, the outdoor fresh air into the indoor and the indoor dirty air flowing to the outdoor can be realized at the same time, and the cost of driving the rotation of the exhaust fan 24 and the fresh air fan 14 is reduced.

[0088] The utility model embodiment further discloses an air conditioner comprising the bidirectional fresh air module, and the air conditioner can realize heat exchange between the fresh air entering the indoor and the old air discharged to the outdoor. Under the premise that the temperature difference between the indoor and outdoor is large, the temperature difference between the fresh air entering the indoor and the indoor environment is reduced, thereby improving the user comfort.

[0089] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" 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 utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0090] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A bidirectional fresh air module, characterized in that, include: Drive motor; The fresh air fan is a centrifugal fan with axial air intake and radial air outlet, and the fresh air fan is poweredly connected to the drive motor; An exhaust fan, which is a centrifugal fan with axial air intake and radial air exhaust, is poweredly connected to the drive motor; When the drive motor is in operation, it drives the fresh air fan and the exhaust fan to rotate synchronously. A fresh air volute is formed inside the fresh air volute. A fresh air fan is installed inside the fresh air volute. A fresh air inlet and a fresh air outlet are formed on the fresh air volute. When the fresh air fan rotates, outdoor air can enter the fresh air volute from the fresh air inlet, and outdoor air entering the fresh air volute can enter the room from the fresh air outlet. An exhaust volute is provided, an exhaust duct is formed inside the exhaust volute, an exhaust fan is installed inside the exhaust volute, and an exhaust inlet and an exhaust outlet are formed on the exhaust volute. The rotation of the exhaust fan can allow indoor air to enter the exhaust volute from the exhaust inlet and allow the indoor air entering the exhaust volute to be exhausted to the outside from the exhaust outlet. Fresh air duct, wherein the fresh air duct is connected to the fresh air inlet; An exhaust duct, which is connected to the exhaust outlet; A bidirectional air duct, wherein a partition is provided inside the bidirectional air duct, the partition dividing the duct cavity into a fresh air inlet cavity and an exhaust air outlet cavity arranged side by side, the fresh air inlet cavity connecting the fresh air duct to the outside, and the exhaust air outlet cavity connecting the exhaust air duct to the outside.

2. The bidirectional fresh air module according to claim 1, characterized in that, At least one of the fresh air duct, the exhaust duct, and the bidirectional air duct is a flexible duct. The flexible tube is a corrugated tube, and the outer peripheral wall of the corrugated tube has protruding corrugated reinforcing ribs.

3. The bidirectional fresh air module according to claim 1, characterized in that, The bidirectional duct has a trapezoidal cavity structure, and the separator is connected between the inner top wall and the inner bottom wall of the trapezoidal cavity.

4. The bidirectional fresh air module according to claim 1, characterized in that, It also includes a fresh air connector, which is connected to the fresh air duct. The fresh air connector has a first fresh air plug end, which is plugged into the end of the fresh air inlet chamber. The fresh air connector has a second fresh air plug end, which is connected to the fresh air duct.

5. The bidirectional fresh air module according to claim 1, characterized in that, It also includes an exhaust connector, which is connected to the exhaust pipe. The exhaust connector has a first exhaust plug end, which is plugged into the end of the exhaust outlet cavity. The exhaust connector has a second exhaust plug end, which is connected to the exhaust pipe.

6. The bidirectional fresh air module according to claim 1, characterized in that, The fresh air duct is equipped with a fresh air installation connector, which is plugged into the fresh air inlet. And / or, the exhaust pipe is provided with an exhaust installation connector, which is plugged into the exhaust outlet.

7. The bidirectional fresh air module according to claim 6, characterized in that, The fresh air installation connector is provided with a first fresh air snap-fit ​​part, and the fresh air inlet is provided with a first fresh air mating part. The first fresh air snap-fit ​​part and the first fresh air mating part are snap-fitted and limited together. And / or, the exhaust installation connector is provided with a first exhaust snap-fit ​​part, and the exhaust outlet is provided with a first exhaust mating part, wherein the first exhaust snap-fit ​​part and the first exhaust mating part are snap-fitted and limited together.

8. The bidirectional fresh air module according to claim 1, characterized in that, The wall thickness of the bidirectional duct is D1, and satisfies the following condition: 0.5mm≤D1≤1.5mm; And / or, the separator is constructed as a separator plate, the thickness of the separator plate is D2, and satisfies: 0.5mm≤D2≤1.5mm.

9. The bidirectional fresh air module according to any one of claims 1-8, characterized in that, The drive motor includes; A stator section having wound coils; The rotor portion is disposed around the outside of the stator portion in the radial direction of the stator portion; Motor housing, the motor housing being connected to the rotor portion; A motor output shaft, which is fixedly connected to the motor housing; The exhaust fan is mounted on the radial outer side of the motor housing and is fixedly connected to the motor housing. The fresh air fan is connected to the output shaft of the motor.

10. An air conditioner, characterized in that, Includes the bidirectional fresh air module as described in any one of claims 1-9.

Images