Fresh air ventilator and air conditioner

Abstract

The utility model provides a fresh air machine and an air conditioner, which comprise a shell, a fan, a fan, a fan and a control device, wherein the shell is internally provided with a fresh air duct and an exhaust duct; the fresh air outlet is formed in the shell, and the fresh air outlet communicates with the fresh air duct and the exhaust air duct; the fan is arranged in the outer shell, the fan comprises a fan shell and fan blades with the adjustable air outlet direction, an airflow channel allowing airflow generated by the fan blades to pass through is formed in the fan shell, and the fan shell is movably connected with the outer shell, so that the airflow channel is communicated with the fresh air channel or the exhaust air channel. The fresh air machine solves the technical problem that fresh air equipment in the prior art cannot achieve indoor and outdoor two-way air exchange through a single air duct.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air fans, in particular to a fresh air fan and an air conditioner. Background Art

[0002] In the existing living environment, when the indoor air is very dusty or has a strong odor, people hope to have an exhaust device to quickly discharge the dirty air outdoors. When the outdoor air is very poor, people want to maintain the oxygen content in the room and hope to have a fresh air fan with a filtering device to introduce air from the outside and supply fresh air. A fresh air device that can meet both functions is more needed in the market.

[0003] In the prior art, there are fresh air devices including two-way systems and unidirectional flow fresh air devices, which can meet the two functional requirements of supplying fresh air and exhausting air at the same time. The two-way system fresh air device in the prior art is equipped with two fans, one for blowing air and the other for exhausting air. By controlling the start and stop of the fans, the requirements of various air supply modes are realized. Such two-way air supply devices have complex structural air ducts, high equipment costs, and require beam openings or wall openings for installation, and the installation process is complex.

[0004] There are various types of unidirectional flow fresh air devices, such as ceiling-mounted unidirectional flow fresh air fans and wall-mounted unidirectional flow wall-mounted fresh air fans. For the existing ceiling-mounted unidirectional flow fresh air fans, due to installation conditions and equipment structure limitations, it is difficult to implement the structural air duct design for both air supply and exhaust. For the existing wall-mounted unidirectional flow fresh air fans, due to wall-mounted installation and flat structure, it is difficult to implement air duct commutation. Therefore, the fresh air devices in the prior art cannot achieve indoor and outdoor two-way ventilation with a single air duct.

[0005] In addition, after directly changing the air exchange direction in the fresh air duct, the following problems are faced. After commutation, the exhausted air still passes through the original fresh air duct filter screen, resulting in high exhaust resistance and high energy consumption. It is necessary to increase the fan or increase the rotation speed to meet the design requirements of the rated air volume, resulting in a large volume of the unidirectional flow fresh air fan device, high unit energy consumption and high manufacturing cost.

[0006] Therefore, the prior art needs to be further developed. Summary of the Utility Model

[0007] The purpose of the utility model is to overcome the above technical deficiencies and provide a fresh air fan and an air conditioner to solve the technical problem that the fresh air device in the related technology cannot achieve indoor and outdoor two-way ventilation with a single air duct.

[0008] To achieve the above technical objectives, the present utility model adopts the following technical solutions: A fresh air fan is provided, including: a housing, a fresh air duct and an exhaust air duct are arranged inside the housing; a fresh air outlet, the fresh air outlet is arranged on the housing, and the fresh air outlet is communicated with both the fresh air duct and the exhaust air duct; a fan, the fan is arranged inside the housing, the fan includes a fan housing and blades with adjustable air outlet directions, an air flow passage through which the air flow generated by the blades passes is formed inside the fan housing, and the fan housing is movably connected to the housing, so that the air flow passage is communicated with the fresh air duct or the exhaust air duct.

[0009] Further, the blades are connected to the fan housing, the fan housing includes a fresh air ventilation opening and an exhaust air ventilation opening arranged oppositely, the blades are located between the fresh air ventilation opening and the exhaust air ventilation opening, and the fan is rotatably connected to the housing to enable the fresh air fan to switch between a fresh air mode and an exhaust air mode; wherein, when the fresh air fan is in the fresh air mode, the fresh air ventilation opening is communicated with the fresh air duct, and the blades generate a fresh air flow flowing from the air flow passage to the fresh air outlet; when the fresh air fan is in the exhaust air mode, the exhaust air duct is communicated with the exhaust air ventilation opening, and the blades generate an exhaust air flow flowing from the fresh air outlet to the air flow passage.

[0010] Further, the fresh air fan includes a filter, the filter is communicated with the fresh air outlet, at least part of the fresh air duct is formed inside the filter, and when the fresh air fan is in the fresh air mode, the fresh air ventilation opening is communicated with the filter; the filter is arranged inside the housing, a first cavity is formed between the filter and the housing, the first cavity is communicated with the exhaust air ventilation opening, and at least part of the exhaust air duct is formed in the first cavity, and when the fresh air fan is in the exhaust air mode, the fresh air outlet is communicated with the first cavity.

[0011] Further, the fan includes a rotating shaft fixedly connected to the fan housing, the rotating shaft is rotatably connected to the housing, and the fan rotates around the rotating shaft; there is a first distance A between the fresh air ventilation opening and the rotating shaft along the extending direction of the air flow passage, and there is a second distance B between the exhaust air ventilation opening and the rotating shaft along the extending direction of the air flow passage; wherein, A > B.

[0012] Further, the fresh air fan includes a connecting component, the connecting component is located between the filter and the fan, and the connecting component includes: a fresh air connecting channel, the fresh air connecting channel is correspondingly arranged with the air inlet of the filter, and the fresh air connecting channel is used for communicating the fresh air ventilation opening and the filter; an exhaust air connecting channel, the exhaust air connecting channel is correspondingly arranged with the first cavity, and the exhaust air connecting channel is used for communicating the first cavity and the exhaust air ventilation opening.

[0013] Further, the exhaust air connecting channel includes a plurality of exhaust air connecting ports, and the plurality of exhaust air connecting ports are distributed circumferentially around the fresh air connecting channel.

[0014] Further, one end of the fresh air connection channel communicates with the air inlet of the filter, and a sealing portion is provided protruding from the other end of the fresh air connection channel. The sealing portion is deformably arranged and includes a sealing surface. When the fresh air fan is in the fresh air mode, the sealing surface fits against the outer wall of the fan housing.

[0015] Further, the connecting component includes a guide plate. The outer wall of the guide plate is connected to the inner wall of the housing, the inner wall of the guide plate is connected to the fresh air connection channel, and an exhaust connection channel is formed on the guide plate. The guide plate is inclined to guide the exhaust air flow from the first cavity into the exhaust ventilation opening.

[0016] Further, the fresh air fan includes a booster fan located at the air inlet of the filter, and the booster fan is used to increase the pressure of the fresh air flow.

[0017] Further, the fresh air fan includes a mounting plate fixedly connected to the housing. A filter and a first motor bracket for fixing the booster fan are fixedly connected to the mounting plate. Through holes for the fresh air flow to pass through are formed on the first motor bracket; an exhaust opening corresponding to the first cavity is formed on the mounting plate, and the first cavity communicates with the exhaust connection channel through the exhaust opening.

[0018] Further, the fan housing is of a spherical structure.

[0019] Further, the fresh air fan includes a separating ring mounted on the inner wall of the housing. The separating ring includes a receiving cavity for receiving the fan. The rotating shaft includes a first rotating shaft and a second rotating shaft arranged oppositely. Both ends of the fan are rotatably connected to the separating ring through the first rotating shaft and the second rotating shaft respectively; a second cavity is formed between the separating ring and the connecting component. When the fresh air fan is in the exhaust mode, the second cavity communicates with the exhaust ventilation opening.

[0020] Further, the fresh air fan includes a drive motor drivingly connected to the fan blade and a second motor bracket. The drive motor is fixedly arranged in the fan housing through the second motor bracket; wherein, the fan blade is located on the side of the fan housing close to the exhaust ventilation opening.

[0021] Further, the fresh air outlet includes a guide cover, and the guide cover includes a fresh air guiding surface which is inclined and used to guide the outflow direction of the fresh air flow.

[0022] Further, the fresh air fan includes a rotary button, and the rotating shaft passes through the housing and is fixedly connected to the rotary button.

[0023] An air conditioner includes the above-mentioned fresh air fan.

[0024] Beneficial effects:

[0025] 1. An exhaust air duct is simultaneously arranged in the fresh air duct of the fresh air fan. When the fan housing is controlled to move, the conduction state of the air flow channel can be changed, realizing the functional requirement of bidirectional ventilation in the fresh air duct of the fresh air fan. The single duct can complete the air supply direction change, eliminating the need to additionally increase ducts and air inlets in the fresh air fan, and solving the technical problem in the related art that fresh air equipment cannot achieve indoor-outdoor bidirectional ventilation with a single duct.

[0026] 2. By rotating the fan, the functions of changing the air supply direction of the fan and switching the duct can be simultaneously achieved. The fan structure is simple, and the switching process of bidirectional ventilation is easy to operate, reducing the cost of the unidirectional flow fresh air fan.

[0027] 3. In the fresh air fan of this embodiment, by rotating the spherical fan component, the air supply direction of the unit is changed. The fan has a design with a height difference between the upper and lower parts of the spherical fan. After rotating the fan, an exhaust air duct is formed. The exhaust air duct shares the same structure with the fresh air duct, enabling the exhaust air flow to be directly discharged to the outside without passing through the filter, realizing a fresh air device in which the low-energy consumption exhaust air function and the fresh air function coexist. Description of the Drawings

[0028] Figure 1 is a schematic diagram of the internal structure of the fresh air fan adopted in the embodiment of the present invention;

[0029] Figure 2 is a schematic diagram of the structure of the guide plate of the fresh air fan adopted in the embodiment of the present invention;

[0030] Figure 3 is a schematic diagram of the position of the second cavity of the fresh air fan adopted in the embodiment of the present invention;

[0031] Figure 4 is a schematic diagram of the structure of the fan of the fresh air fan adopted in the embodiment of the present invention;

[0032] Figure 5 is a schematic diagram of the internal structure of the fan of the fresh air fan adopted in the embodiment of the present invention;

[0033] Figure 6 is the front view of the connecting component of the fresh air fan adopted in the embodiment of the present invention;

[0034] Figure 7 is a schematic diagram of the structure of the connecting component of the fresh air fan adopted in the embodiment of the present invention;

[0035] Figure 8 is a schematic diagram of the structure of the fresh air fan adopted in the embodiment of the present invention in the fresh air mode;

[0036] Figure 9 is a schematic diagram of the structure of the fresh air fan adopted in the embodiment of the present invention in the exhaust air mode.

[0037] Among them, the above-mentioned drawings include the following reference numerals:

[0038] 1. Housing; 2. Fresh air outlet; 21. Deflector; 211. Fresh air deflector surface; 3. Fan; 31. Fan housing; 311. Air flow channel; 32. Blades; 321. Driving motor; 33. Fresh air ventilation opening; 34. Exhaust ventilation opening; 35. Rotating shaft; 351. First rotating shaft; 352. Second rotating shaft; 353. Rotating button; 4. Filter; 5. First cavity; 6. Connecting component; 61. Fresh air connecting channel; 62. Exhaust connecting channel; 63. Sealing part; 631. Sealing surface; 64. Deflector plate; 7. Enhanced fan; 8. Mounting plate; 81. First motor bracket; 82. Through hole; 83. Exhaust port; 9. Isolation ring; 91. Second cavity. Detailed implementation manners

[0039] In order to enable those skilled in the art of this technology to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0040] According to an embodiment of the present invention, a fresh air blower is provided. Please refer to Figures 1 to 9 , including: a housing 1, a fresh air duct and an exhaust duct are arranged inside the housing 1; a fresh air outlet 2, the fresh air outlet 2 is arranged on the housing 1, and the fresh air outlet 2 is communicated with both the fresh air duct and the exhaust duct; a fan 3, the fan 3 is arranged inside the housing 1, the fan 3 includes a fan housing 31 and blades 32 with an adjustable air outlet direction, an air flow channel 311 for the air flow generated by the blades 32 to pass through is formed inside the fan housing 31, and the fan housing 31 is movably connected to the housing 1, so that the air flow channel 311 is communicated with the fresh air duct or the exhaust duct.

[0041] Specifically, the fresh air outlet 2 is connected to the room and is used to deliver fresh air to the room. A fresh air inlet is connected to one end of the housing 1 close to the fan 3, and the fresh air inlet is connected to the outside. When switched to the exhaust mode, the indoor air enters the fresh air blower through the fresh air outlet 2 as the exhaust inlet and is discharged to the outside through the fresh air inlet.

[0042] Specifically, the air outlet direction of the blades 32 is adjustable, that is, by adjusting the blades 32, the direction of the generated air flow can be changed, thereby changing the air supply direction of the fan.

[0043] With the above settings, an exhaust air duct is arranged in the fresh air duct of the fresh air machine. When the fan housing 31 is controlled to move, the conduction state of the air flow channel 311 can be changed, so that the air flow channel 311 is communicated with the fresh air duct or the exhaust air duct respectively, so that the fresh air flow or the exhaust air flow flows through different channels respectively, realizing the functional requirement of bidirectional ventilation in the fresh air duct of the fresh air machine. A single duct can complete the air supply direction change without adding additional ducts and air outlets in the fresh air machine, improving the aesthetic feeling of the product and solving the technical problem that the fresh air equipment in the related technology cannot realize bidirectional indoor and outdoor ventilation with a single duct.

[0044] In the fresh air machine of this embodiment, refer to Figure 1 、 Figure 4 , the impeller 32 is connected to the fan housing 31. The fan housing 31 includes a fresh air vent 33 and an exhaust air vent 34 which are arranged oppositely. The impeller 32 is located between the fresh air vent 33 and the exhaust air vent 34. The fan 3 is rotatably connected to the housing 1 so that the fresh air machine can be switched between the fresh air mode and the exhaust air mode; wherein, when the fresh air machine is in the fresh air mode, the fresh air vent 33 is communicated with the fresh air duct, and the impeller 32 generates a fresh air flow flowing from the air flow channel 311 to the fresh air outlet 2; when the fresh air machine is in the exhaust air mode, the exhaust air duct is communicated with the exhaust air vent 34, and the impeller 32 generates an exhaust air flow flowing from the fresh air outlet 2 to the air flow channel 311.

[0045] Specifically, by rotating the fan housing 31 by 180°, the impeller 32 can be driven to rotate at the same time, and the lower part of the fan 3 becomes the upper part, thus changing the installation direction of the impeller 32, and the air supply direction of the fan can be changed without using a reversible motor; at the same time, rotating the fan housing 31 can change the conduction state of the air flow channel, realizing the communication between the fresh air vent 33 and the fresh air duct or the communication between the exhaust air duct and the exhaust air vent 34, and realizing the switching of the bidirectional duct.

[0046] With the above settings, by rotating the fan 3, the functions of changing the air supply direction of the fan 3 and switching the duct can be realized at the same time. The fan structure in this embodiment is simple, and the switching process of bidirectional ventilation is easy to operate, reducing the cost of the unidirectional flow fresh air machine.

[0047] In the fresh air machine of this embodiment, refer to Figure 1, the fresh air machine includes a filter 4. The filter 4 is connected to the fresh air outlet 2, and at least part of the fresh air duct is formed inside the filter 4. When the fresh air machine is in the fresh air mode, the fresh air vent 33 is connected to the filter 4; the filter 4 is arranged inside the housing 1, and a first cavity 5 is formed between the filter 4 and the housing 1. The first cavity 5 is connected to the exhaust vent 34, and at least part of the exhaust duct is formed in the first cavity 5. When the fresh air machine is in the exhaust mode, the fresh air outlet 2 is connected to the first cavity 5. Through the above settings, a fresh air duct is formed in the filter to improve the cleanliness of the fresh air, and the exhaust duct passes through the first cavity 5 between the filter and the housing, so that the exhaust air flow does not need to pass through the filter 4, reducing the exhaust air resistance, the manufacturing cost and energy consumption of the fresh air machine; in addition, by only rotating the fan 3, the problem of large resistance and small air volume of the fresh air filter screen can be solved, with a simple structure, simple operation and low maintenance cost.

[0048] In the fresh air machine of this embodiment, refer to Figure 3 , the fan 3 includes a rotating shaft 35 fixedly connected to the fan housing 31. The rotating shaft 35 is rotatably connected to the housing 1, and the fan 3 rotates around the rotating shaft 35; there is a first distance A between the fresh air vent 33 and the rotating shaft 35 along the extension direction of the air flow channel 311, and there is a second distance B between the exhaust vent 34 and the rotating shaft 35 along the extension direction of the air flow channel 311; wherein, A > B. Specifically, the rotating shaft 35 is the rotation center of the fan 3. By setting the first distance A and the second distance B, the upper and lower part step difference design of the fan 3 is realized, so that only the fresh air vent 33 can be connected to the filter 4 by rotating the fan 3, and the exhaust air flow can be directly discharged to the outside without passing through the filter 4.

[0049] In addition, since the fan 3 is a spherical structure and A > B, the diameter of the exhaust vent 34 can be made large enough to reduce the exhaust inlet resistance and ensure that the exhaust air volume meets the set value.

[0050] Specifically, A - B is greater than C, and the C value is selected as the optimal value within 30 - 70 mm under the condition of allowable noise to reduce the exhaust noise on the basis of meeting the exhaust air volume.

[0051] In the fresh air machine of this embodiment, refer to Figure 1 、 6 、7, the fresh air machine includes a connecting component 6. The connecting component 6 is located between the filter 4 and the fan 3. The connecting component 6 includes: a fresh air connecting channel 61, the fresh air connecting channel 61 is correspondingly arranged with the air inlet of the filter 4, and the fresh air connecting channel 61 is used to connect the fresh air vent 33 and the filter 4; an exhaust connecting channel 62, the exhaust connecting channel 62 is correspondingly arranged with the first cavity 5, and the exhaust connecting channel 62 is used to connect the first cavity 5 and the exhaust vent 34.

[0052] Specifically, relative to the blower 3, the filter 4 is located upstream of the exhaust air flow. To ensure the filtering effect of the filter 4, the outer diameter of the filter 4 cannot be too small. Therefore, to avoid the filter 4 blocking the exhaust air flow, a connecting component 6 is provided between the filter 4 and the blower 3, and a sufficient number of exhaust air connection channels 62 are provided on the connecting component to meet the exhaust air volume.

[0053] In the fresh air blower of this embodiment, refer to Figure 7 , the exhaust air connection channels 62 include a plurality of exhaust air connection ports, and the plurality of exhaust air connection ports are circumferentially distributed around the fresh air connection channel 61. By providing a plurality of exhaust air connection ports, the exhaust air volume can be increased.

[0054] In the fresh air blower of this embodiment, refer to Figure 1 、 7 , one end of the fresh air connection channel 61 is communicated with the air inlet of the filter 4, and a sealing portion 63 is protrudingly provided at the other end of the fresh air connection channel 61. The sealing portion 63 is deformably provided, and the sealing portion 63 includes a sealing surface 631. When the fresh air blower is in the fresh air mode, the sealing surface 631 is attached to the outer wall of the blower housing 31.

[0055] Through the above settings, the sealing portion 63 has flexibility, and the sealing surface 631 is in interference fit with the outer wall of the blower housing 31, so that the fresh air vent 33 can be kept sealed with the fresh air connection channel 61 to avoid the leakage of fresh air flow; at the same time, the sealing portion 63 has flexibility. When the blower rotates and the outer wall of the blower housing 31 abuts against the sealing portion 63, the sealing portion 63 can be deformed, so that a rotational connection can be achieved.

[0056] In the fresh air blower of this embodiment, refer to Figure 7 , the connecting component 6 includes a guide vane 64. The outer wall of the guide vane 64 is connected to the inner wall of the housing, and the inner wall of the guide vane 64 is connected to the fresh air connection channel 61. The exhaust air connection channel 62 is provided on the guide vane 64. The guide vane 64 is inclined to guide the exhaust air flow from the first cavity 5 into the exhaust air vent 34. Specifically. The guide vane 64 is "conical", the guide vane 64 is inclined along the axial direction, and the end of the guide vane 64 connected to the fresh air connection channel 61 extends towards the direction close to the blower 3 to realize the guiding function of the exhaust air flow.

[0057] In the fresh air blower of this embodiment, refer to Figure 1 , the fresh air blower includes an enhanced blower 7. The enhanced blower 7 is located at the air inlet of the filter 4, and the enhanced blower 7 is used to increase the pressure of the fresh air flow. Specifically, by providing the enhanced blower 7, the enhanced blower 7 rotates in a circumferential motion to deliver fresh air flow to the filter 4 as a compensation power source for the fresh air flow.

[0058] In the fresh air blower of this embodiment, refer to Figure 1 、8 In the fresh air fan of this embodiment, an installation plate 8 fixedly connected to the housing 1 is included. A filter 4 and a first motor bracket 81 for fixing the enhanced fan 7 are fixedly connected to the installation plate 8. A through hole 82 for the fresh air flow to pass through is formed on the first motor bracket 81; a discharge port 83 corresponding to the first cavity 5 is formed on the installation plate 8, and the first cavity 5 is communicated with the exhaust connection channel 62 through the discharge port 83. Through the above settings, the installation plate 8 is used to fix the filter 4 and the enhanced fan 7, and the exhaust air flow is communicated with the exhaust connection channel 62 through the discharge port 83.

[0059] Specifically, the installation plate 8 is located above the connecting member 6.

[0060] In the fresh air fan of this embodiment, refer to Figure 1 The fan housing 31 is a spherical structure. Specifically, the rotation axis 35 is collinear with the center of the sphere of the fan housing 31.

[0061] It can be understood that the fan housing 31 includes but is not limited to shapes such as spherical, egg-shaped, cylindrical, etc.

[0062] In the fresh air fan of this embodiment, refer to Figure 1 The fresh air fan includes an isolation ring 9 installed on the inner wall of the housing 1. The isolation ring 9 includes a receiving cavity for accommodating the fan 3. The rotation axis 35 includes a first rotation axis 351 and a second rotation axis 352 arranged oppositely. Both ends of the fan 3 are rotatably connected to the isolation ring 9 through the first rotation axis 351 and the second rotation axis 352 respectively; a second cavity 91 is formed between the isolation ring 9 and the connecting member 6. When the fresh air fan is in the exhaust mode, the second cavity 91 is communicated with the exhaust ventilation opening 34.

[0063] Specifically, the shape of the receiving cavity is correspondingly arranged with the outer wall of the fan housing 31. When the fan 3 rotates, the fan 3 rotates in the receiving cavity; in addition, by providing the isolation ring 9, a second cavity 91 is formed between the isolation ring 9 and the connecting member 6, avoiding leakage of the inhaled exhaust air flow.

[0064] In the fresh air fan of this embodiment, refer to Figure 3 The fresh air fan includes a driving motor 321 drivingly connected to the wind blade 32 and a second motor bracket. The driving motor 321 is fixedly arranged in the fan housing 31 through the second motor bracket; wherein, the wind blade 32 is located on one side of the fan housing 31 close to the exhaust ventilation opening 34. Through the above settings, the wind blade 32 is fixedly arranged inside the fan 3. By arranging the wind blade 32 on one side of the fan housing 31 close to the exhaust ventilation opening 34, the exhaust air volume can be increased and the volume of the fan housing 31 can be reduced.

[0065] In the fresh air fan of this embodiment, refer to Figure 1, the fresh air outlet 2 includes a flow guide cover 21, and the flow guide cover 21 includes a fresh air flow guide surface 211 which is inclined. The fresh air flow guide surface 211 is used to guide the outflow direction of the fresh air flow. Specifically, the fresh air flow guide surface 211 is inclined along the axial direction, and in addition, a flow guide plate for the fresh air flow is also provided on the housing 1.

[0066] Through the above settings, after the fresh air flows out of the filter 4, it is guided by the flow guide plate on the housing 1 and the flow guide cover 21, and the fresh air flow can be gently and umbrella-shaped transported into the room.

[0067] Specifically, the fresh air fan includes an exhaust flow guide plate which is inclined along the axial direction and is used to guide the inflow direction of the exhaust air flow.

[0068] It can be understood that the flow guide plate and the flow guide cover 21 on the housing 1 can not only guide the fresh air flow, but also guide the exhaust air flow when the fresh air fan is in the exhaust mode.

[0069] In the fresh air fan of this embodiment, referring to Figure 1 , the fresh air fan includes a rotary button 353, and a rotary shaft 35 passes through the housing 1 and is fixedly connected to the rotary button 353. Specifically, by rotating the rotary button, the fan 3 is rotated 180 degrees to realize the switching between the fresh air mode and the exhaust mode.

[0070] Specifically, referring to Figure 8 , when the fresh air fan is in the fresh air mode, outdoor fresh air enters the unit through the fresh air duct, the wind blade 32 and the booster fan 7 are turned on at the same time, the wind blade 32 rotates, the fresh air flow flows vertically upward, the fresh air vent 33 is connected to the fresh air connection channel 61, flows from the air flow channel 311 to the fresh air connection channel 61, the fresh air flow flows vertically, and after passing through the booster fan 7, it is rotated by the booster fan 7 and blown towards the filter 4. After the fresh air flows out of the filter 4, it is guided by the flow guide plate and the flow guide cover 21 on the housing 1, passes through the fresh air outlet 2, and is gently and umbrella-shaped transported into the room.

[0071] When the fresh air fan is in the exhaust mode, the fan 3 is not in contact with the connecting component 6, and at this time the booster fan 7 does not start. Referring to Figure 9 , indoor air enters the unit from the fresh air outlet 2, the air flow flows downward through the first cavity 5, passes through the exhaust vent 83 on the mounting plate 8, the exhaust connection channel 62, and the second cavity 91, enters the air flow channel 311 through the fresh air vent 33, and after passing through the rotation of the wind blade 32, it is blown vertically downward through the fresh air duct to the outside.

[0072] In this embodiment, the fresh air unit changes the air supply direction of the unit by rotating the spherical fan component. The fan 3 has a design with a height difference between the upper and lower parts of the spherical fan. After rotating the fan 3, an exhaust air duct is formed. The exhaust air duct shares the same structure with the fresh air duct, enabling the exhaust air flow to be directly discharged outdoors without passing through the filter, thus realizing a fresh air device that coexists the low-energy consumption exhaust function and the fresh air function.

[0073] In this embodiment, the fresh air unit shares the air outlet for both exhaust and fresh air, eliminating the need for additional air outlets, enhancing the aesthetic of the product. Moreover, the exhaust air does not pass through the fresh air filter, resulting in low operating resistance, low noise, and low energy consumption for the exhaust. The structure is simple, with low cost, easy installation, and simple operation to achieve the two-way ventilation function, meeting the user's demand for low-cost two-way ventilation.

[0074] An air conditioner, wherein the air conditioner includes the above-mentioned fresh air unit.

[0075] Applying the fresh air unit in this embodiment to the air conditioner, the fresh air is filtered and purified through the high-efficiency filter and then delivered indoors to solve the problem of poor indoor air quality. When the indoor air is relatively poor or the outdoor humidity is relatively high, it is not advisable to introduce fresh air. The user can rotate the button to switch to the exhaust mode, and the unit starts to exhaust, thereby realizing the exhaust function.

[0076] It should be noted that the terms "first", "second", etc. in the description of the specification, claims, and the above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0077] Optionally, the specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be elaborated here.

[0078] The serial numbers of the above embodiments of this application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0079] In the above embodiments of this application, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0080] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A new air blower, characterized in that: include: A housing (1), wherein a fresh air duct and an exhaust air duct are arranged in the housing (1); A fresh air outlet (2), the fresh air outlet (2) being arranged on the housing (1), the fresh air outlet (2) being in communication with both the fresh air duct and the exhaust air duct; A fan (3), wherein the fan (3) is arranged in the housing (1), and the fan (3) comprises a fan housing (31) and fan blades (32) whose air outlet direction can be adjusted, and an air flow channel (311) is formed in the fan housing (31) for the air flow generated by the fan blades (32) to pass through, and the fan housing (31) is movably connected to the housing (1), so that the air flow channel (311) is connected to the fresh air duct or the exhaust air duct.

2. The fresh air blower according to claim 1, characterized in that: The fan blade (32) is connected to the fan housing (31); the fan housing (31) comprises a fresh air vent (33) and an exhaust air vent (34) arranged opposite to each other; the fan blade (32) is located between the fresh air vent (33) and the exhaust air vent (34); the fan (3) is rotatably connected to the housing (1) so that the fresh air fan can switch between a fresh air mode and an exhaust air mode; wherein: When the fresh air fan is in the fresh air mode, the fresh air vent (33) is connected to the fresh air duct, and the fan blade (32) generates a fresh air flow that flows from the air flow channel (311) to the fresh air outlet (2); When the fresh air fan is in exhaust mode, the exhaust air duct is connected to the exhaust vent (34), and the fan blade (32) generates an exhaust air flow that flows from the fresh air outlet (2) to the air flow channel (311).

3. The fresh air blower according to claim 2, characterized in that: The fresh air fan comprises a filter (4), the filter (4) is in communication with the fresh air outlet (2), at least part of the fresh air duct is formed in the filter (4), and when the fresh air fan is in a fresh air mode, the fresh air vent (33) is in communication with the filter (4); The filter (4) is arranged inside the housing (1), and a first cavity (5) is formed between the filter (4) and the housing (1); the first cavity (5) is connected to the exhaust vent (34); at least a portion of the exhaust duct is formed in the first cavity (5); when the fresh air fan is in exhaust mode, the fresh air outlet (2) is connected to the first cavity (5).

4. The fresh air blower according to claim 3, characterized in that: The fan (3) comprises a rotating shaft (35) fixedly connected to the fan housing (31), the rotating shaft (35) being rotationally connected to the housing (1), and the fan (3) rotates around the rotating shaft (35); Along the extension direction of the air flow channel (311), there is a first distance A between the fresh air vent (33) and the rotating shaft (35), and along the extension direction of the air flow channel (311), there is a second distance B between the exhaust air vent (34) and the rotating shaft (35); Among them, A>B.

5. The fresh air blower according to claim 4, characterized in that: The fresh air fan comprises a connecting component (6), wherein the connecting component (6) is located between the filter (4) and the air fan (3), and the connecting component (6) comprises: A fresh air connection channel (61), the fresh air connection channel (61) being arranged corresponding to the air inlet of the filter (4), and the fresh air connection channel (61) being used to connect the fresh air vent (33) and the filter (4); An exhaust connection channel (62), the exhaust connection channel (62) being arranged corresponding to the first cavity (5), and the exhaust connection channel (62) being used to connect the first cavity (5) and the exhaust vent (34).

6. The fresh air blower according to claim 5, characterized in that: The exhaust air connection channel (62) comprises a plurality of exhaust air connection ports, and the plurality of exhaust air connection ports are distributed around the circumference of the fresh air connection channel (61).

7. The fresh air blower according to claim 5, characterized in that: One end of the fresh air connection channel (61) is connected to the air inlet of the filter (4), and the other end of the fresh air connection channel (61) is protrudingly provided with a sealing portion (63), and the sealing portion (63) is deformably arranged, and the sealing portion (63) includes a sealing surface (631). When the fresh air fan is in the fresh air mode, the sealing surface (631) is in contact with the outer wall of the fan housing (31).

8. The fresh air blower according to claim 5, characterized in that: The connecting component (6) comprises a guide plate (64), the outer wall of the guide plate (64) is connected to the inner wall of the outer shell, the inner wall of the guide plate (64) is connected to the fresh air connection channel (61), the guide plate (64) is provided with the exhaust air connection channel (62), and the guide plate (64) is arranged at an angle to guide the exhaust air flow from the first cavity (5) into the exhaust vent (34).

9. The fresh air blower according to claim 5, characterized in that: The fresh air fan comprises an enhanced fan (7), the enhanced fan (7) is located at the air inlet of the filter (4), and the enhanced fan (7) is used to increase the pressure of the fresh air flow.

10. The fresh air blower according to claim 9, characterized in that: The fresh air fan comprises a mounting plate (8) fixedly connected to the housing (1), the filter (4) and a first motor bracket (81) for fixing the enhanced air fan (7) being fixedly connected to the mounting plate (8), and a through hole (82) for fresh air to pass through is formed on the first motor bracket (81); An exhaust port (83) is provided on the mounting plate (8) corresponding to the first cavity (5), and the first cavity (5) is connected to the exhaust connection channel (62) through the exhaust port (83).

11. The fresh air blower according to claim 1, characterized in that: The fan housing (31) is a spherical structure.

12. The fresh air blower according to claim 5, characterized in that: The fresh air fan comprises an isolating ring (9) mounted on the inner wall of the housing (1), the isolating ring (9) comprising a housing cavity for accommodating the air fan (3), the rotating shaft (35) comprising a first rotating shaft (351) and a second rotating shaft (352) arranged opposite to each other, and the two ends of the air fan (3) are rotatably connected to the isolating ring (9) via the first rotating shaft (351) and the second rotating shaft (352), respectively; A second cavity (91) is formed between the isolation ring (9) and the connecting component (6); when the fresh air fan is in exhaust mode, the second cavity (91) is in communication with the exhaust vent (34).

13. The fresh air blower according to claim 2, characterized in that: The fresh air fan comprises a drive motor (321) drivingly connected to the fan blade (32) and a second motor bracket, wherein the drive motor (321) is fixedly arranged in the fan housing (31) via the second motor bracket; wherein: The fan blade (32) is located on a side of the fan housing (31) close to the exhaust vent (34).

14. The fresh air blower according to claim 2, characterized in that: The fresh air outlet (2) comprises a guide cover (21), the guide cover (21) comprises a fresh air guide surface (211), the fresh air guide surface (211) is arranged obliquely, and the fresh air guide surface (211) is used to guide the outflow direction of the fresh air flow.

15. The fresh air blower according to claim 4, characterized in that: The fresh air blower comprises a rotating button (353), and the rotating shaft (35) passes through the housing (1) and is fixedly connected to the rotating button (353).

16. An air conditioner, characterized in that: The air conditioner comprises the fresh air blower as claimed in any one of claims 1 to 15.

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