WO2021031456A1 - Multi-functional bidirectional-flow ventilator - Google Patents

Abstract

Provided is a multifunctional bidirectional-flow ventilator, comprising a ventilation circulation module. The ventilation circulation module comprises a first circulation cavity, and a ventilation impeller (14), an exhaust impeller (3), a ventilation duct volute (15), an exhaust duct volute (5) and a first driving electric motor (4) arranged in the first circulation cavity, wherein the ventilation impeller (14) and the exhaust impeller (3) are coaxially arranged and are respectively arranged on output shafts located at two sides of the first driving electric motor (4); a ventilation duct is formed in the ventilation duct volute (15), and an exhaust duct is formed in the exhaust duct volute (5); a side wall of the first circulation cavity is provided with a ventilation inlet (17), a ventilation outlet (11), a first exhaust inlet (2) and an exhaust outlet (16), both the ventilation inlet (17) and the ventilation outlet (11) are in communication with the ventilation duct, both the first exhaust inlet (2) and the exhaust outlet (16) are in communication with the exhaust duct, the ventilation outlet (11) and the first exhaust inlet (2) face indoors, and the ventilation inlet (17) and the exhaust outlet (16) face the outdoors; and the ventilation circulation module further comprises an air processor (13), with the air processor (13) being arranged at an air inlet end of the ventilation duct volute (15).

Description

Multifunctional two-way flow fresh air fan

This application is required to be submitted to the Chinese Patent Office on August 20, 2019, with the application number CN201910768212.7, the title of the invention as "a multi-functional fresh air blower", and the Chinese Patent Office on November 29, 2019, with the application number CN201911201478. X, the priority of the Chinese patent application with the title of "Multifunctional Two-way Flow Fresh Air Fan", the entire content of which is incorporated in this application by reference.

Technical field

The invention relates to the field of residential fresh air systems, in particular to a multifunctional two-way flow fresh air fan.

Background technique

As a device that can introduce fresh outdoor air into the room and discharge the dirty indoor air, the fresh air blower can effectively reduce the concentration of indoor carbon dioxide, formaldehyde, benzene and other harmful gases, increase the oxygen content, and prevent air conditioning diseases. At the same time, an air filter will be built into the fresh air blower to filter bacteria, particulate matter (PM2.5) and other harmful substances in the fresh air through the air filter to ensure the cleanliness of the fresh air introduced into the room.

In the prior art, the fresh air supply and exhaust of the new fan need to be realized by separate modules, resulting in a large volume of the new fan and large installation space.

Summary of the invention

Based on this, it is necessary to provide a multifunctional two-way flow fan.

A multifunctional two-way flow fresh air fan, comprising a fresh air circulation module, the fresh air circulation module comprising a first circulation cavity and a fresh air impeller, an exhaust impeller, a fresh air duct volute, and an exhaust air duct arranged in the first circulation cavity A volute and a first drive motor, the fresh air impeller and the exhaust air impeller are coaxially arranged, and are respectively arranged on the output shafts on both sides of the first drive motor;

A fresh air duct is formed in the volute of the fresh air duct, an exhaust air duct is formed in the volute of the exhaust air duct, and the side wall of the first circulation cavity is provided with a fresh air inlet, a fresh air outlet, and a first row The air inlet and the exhaust air outlet, the fresh air inlet and the fresh air outlet are all connected to the fresh air duct, and the first exhaust air inlet and the exhaust air outlet are all connected to the exhaust air The air duct is connected, the fresh air outlet and the first exhaust air inlet face the room, and the fresh air inlet and the exhaust air outlet face the outdoors;

The fresh air circulation module further includes an air handler which is arranged at the air inlet end of the fresh air duct volute.

In one of the embodiments, the fresh air circulation module further includes a partition plate arranged between the fresh air duct volute and the exhaust air duct volute to isolate the fresh air duct and The exhaust air duct.

In one of the embodiments, the fresh air circulation module further includes two clutch couplings, one of which is provided between the first drive motor and the fresh air impeller, and the other The clutch coupling is arranged between the first drive motor and the exhaust impeller.

In one of the embodiments, the multifunctional two-way flow fresh air fan further includes a functional module, the functional module includes a second circulation cavity and a functional fan arranged in the second circulation cavity, and the functional fan includes an air duct A volute, a side wall of the second circulation cavity is provided with a functional air inlet and a functional air outlet, the functional air inlet and the functional air outlet are both facing the room, the air duct volute includes a first air outlet, and the function The air outlet is communicated with the first air outlet.

In one of the embodiments, the functional module further includes an air heating device, and the air heating device is arranged toward the functional air outlet.

In one of the embodiments, the side wall of the second circulation cavity is further provided with an exhaust outlet, the air duct volute includes a second air outlet, and the second air outlet is connected to the exhaust outlet, so The functional module also includes a valve, which is rotatably arranged on the air duct volute and used to control the opening or closing state of the first air outlet and the second air outlet.

In one of the embodiments, the multifunctional two-way flow fan includes a casing and a panel covering the casing, and the casing and the panel are enclosed to form the first circulation cavity and In the second circulation cavity, the functional air inlet and the functional air outlet are both arranged on the panel.

In one of the embodiments, the fresh air duct volute and the exhaust air duct volute are stacked in a thickness direction of the multi-kinetic energy bidirectional flow fresh air blower, and the fresh air impeller and the fresh air duct volute And the air handler is arranged on a side close to the panel, and an inspection port is opened on the panel for inspecting and repairing the air handler.

In one of the embodiments, the fresh air duct volute and the exhaust air duct volute are stacked in a thickness direction of the multi-kinetic energy bidirectional flow fresh air blower, and the fresh air impeller and the fresh air duct volute And the air handler is arranged on a side close to the casing, and the casing is provided with an inspection port for overhauling the air handler.

In one of the embodiments, the fresh air duct volute and the exhaust air duct volute are stacked along the length direction of the multi-kinetic energy bidirectional flow fresh air blower, and the panel or the casing is provided with an inspection port , Used to overhaul the air handler.

In one of the embodiments, the fresh air duct volute and the exhaust air duct volute are stacked in a thickness direction of the multi-kinetic energy bidirectional flow fresh air blower, and the fresh air impeller and the fresh air duct volute And the air handler is arranged on the side close to the housing, the exhaust impeller and the exhaust air duct volute are arranged on the side close to the panel, and the panel is also provided with a second The exhaust air inlet, and the second exhaust air inlet communicates with the exhaust air duct.

In one of the embodiments, the fresh air duct volute and the exhaust air duct volute are stacked along the length direction of the multi-kinetic energy bidirectional flow fresh air blower, and the panel is also provided with a second exhaust air inlet The air outlet, the second exhaust air inlet is in communication with the exhaust air duct.

In one of the embodiments, a display screen is provided on the panel for displaying the operating status of the device.

A multifunctional two-way flow fresh air fan, comprising a fresh air circulation module, the fresh air circulation module comprising a first circulation cavity and a fresh air impeller, an exhaust impeller, a fresh air duct volute, and an exhaust air duct arranged in the first circulation cavity The volute and the first drive motor, the fresh air impeller and the exhaust air impeller are coaxially arranged, and are respectively arranged on the output shafts on both sides of the first drive motor, and fresh air is formed in the fresh air duct volute An exhaust air duct is formed in the volute of the exhaust air duct;

The side wall of the first circulation cavity is provided with a fresh air inlet, a fresh air outlet, a first exhaust air inlet and an exhaust air outlet, and the fresh air inlet and the fresh air outlet are all connected to the fresh air duct , The first exhaust air inlet and the exhaust air outlet are both connected to the exhaust air duct, the fresh air outlet and the first exhaust air inlet face the room, the fresh air inlet and the The exhaust air outlet is facing the outdoors;

The fresh air circulation module further includes an air processor for purifying the air flowing into the fresh air duct to obtain fresh air.

The details of one or more embodiments of the present invention are set forth in the following drawings and description. Other features, objects and advantages of the present invention will become apparent from the description, drawings and claims.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a perspective view of a multifunctional two-way flow fresh air fan in an embodiment;

Figure 2 is an exploded view of the multifunctional two-way flow fresh air blower shown in Figure 1;

Figure 3 is a top view of the removal panel of the multifunctional two-way flow fresh air blower shown in Figure 1;

Figure 4 is a cross-sectional view of the multifunctional two-way flow fresh air blower shown in Figure 3 along the B-B direction;

Figure 5 is a cross-sectional view of the multifunctional two-way flow fresh air blower shown in Figure 3 along the A-A direction;

Figure 6 is a schematic diagram of a functional fan in the multifunctional two-way flow fresh air fan shown in Figure 2;

Figure 7 is a schematic diagram of the valve in another state of the multifunctional two-way flow fresh air blower shown in Figure 5;

Fig. 8 is a top view of the removal panel of the multifunctional two-way flow fresh air fan in another embodiment.

detailed description

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or a central element may also exist. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time. The terms "inner", "outer", "left", "right" and similar expressions used herein are for illustrative purposes only and do not mean that they are the only embodiments.

Please refer to Figure 1. The multifunctional two-way flow fresh air fan includes a fresh air circulation module and a functional module. The fresh air circulation module is used to purify the fresh outdoor air and send it indoors, that is, it has the function of fresh air; in order to improve the indoor air purification rate, the fresh air circulation module can also discharge the dirty indoor air to the outdoors while sending fresh air. The functional module is used to increase the indoor air temperature, that is, it has a heating function; the functional module is also used to blow air into the room to speed up the indoor air circulation and reduce the indoor temperature, that is, it has the blowing function. In some embodiments, the functional module is also used to exhaust indoor air to the outdoors, that is, it has an exhaust function.

Both the fresh air circulation module and the functional module include an independently set circulation cavity. For ease of description, the circulation cavity formed in the fresh air circulation module is called the "first circulation cavity", and the circulation cavity formed in the function module is called the "first circulation cavity". Two circulation cavity". Specifically, the multifunctional two-flow fresh air fan includes a panel 1 and a casing 7. The casing 7 is formed with two independent chambers on the left and right. The surfaces of the two independent chambers are closed by the panel 1 to form mutually independent first chambers. A circulation cavity and a second circulation cavity.

It should be noted that when the observer faces the panel 1 of the multifunctional two-way flow fresh air blower, the functional module is located on the right; the fresh air circulation module is located on the left.

2 and 4, the fresh air circulation module includes two fan impellers, specifically the fresh air impeller 14 and the exhaust air impeller 3, and the fresh air impeller 14 and the exhaust air impeller 3 are arranged coaxially. The fresh air circulation module also includes a first drive motor 4. The fresh air impeller 14 and the exhaust air impeller 3 are respectively mounted on the output shaft of the first drive motor 4. The first drive motor 4 is used to drive the fresh air impeller 14 and/or the exhaust impeller 3 Rotate. Since both the exhaust air impeller 3 and the fresh air impeller 14 are driven by the first drive motor 4, the integration of the multifunctional two-way flow fresh air fan is greatly improved, the total volume of the multifunctional two-way flow fresh air fan is effectively reduced, and installation space is saved.

Specifically, the first drive motor 4 is arranged between the fresh air impeller 14 and the exhaust air impeller 3. The first driving motor 4 is a dual-shaft motor, and the fresh air impeller 14 and the exhaust air impeller 3 are respectively arranged on one of the output shafts of the first driving motor 4.

In an embodiment, the fresh air impeller 14 and the exhaust air impeller 3 are both arranged on the output shaft of the first drive motor 4 through a clutch coupling 25. During the working process of the fresh air circulation module, the clutch coupling 25 connecting the exhaust air impeller 3 and the first drive motor 4 can be loosened, so that all the power of the first drive motor 4 is used to drive the fresh air impeller 14, thereby achieving enhancement The effect of fresh air. Similarly, the clutch coupling 25 connecting the fresh air impeller 14 and the first drive motor 4 can also be loosened, so that all the power of the first drive motor 4 is used to drive the exhaust air impeller 3, thereby achieving the effect of enhancing the exhaust air. .

The fresh air circulation module also includes a fresh air duct volute 15 and an exhaust air duct volute 5. The fresh air impeller 14 is installed in the fresh air duct volute 15 and the exhaust impeller 3 is installed in the exhaust air duct volute 5. The fresh air duct volute 15 forms a fresh air duct, and the exhaust air duct volute 5 forms an exhaust air duct. The fresh air circulation module also includes an air processor 13 for purifying the air flowing into the fresh air duct to obtain fresh air. In one embodiment, the air handler 13 is arranged at the air inlet end of the fresh air duct volute 15. The air processor 13 includes, but is not limited to, an electrostatic precipitator, an RGF active purification unit, a purification filter element, a negative ion generator, and an air humidifier.

Specifically, the fresh air duct volute 15 and the exhaust air duct volute 5 are stacked in the thickness direction of the multifunctional bidirectional flow fresh air blower. In one embodiment, please refer to Figure 2. The exhaust air duct volute 5 and the exhaust impeller 3 are arranged on the side close to the panel 1, and the fresh air duct volute 15, the fresh air impeller 14 and the air handler 13 are arranged close to One side of the housing 7. The housing 7 is provided with an inspection port, and the inspection port is arranged opposite to the air handler 13 for replacement or cleaning of the air handler 13. In other embodiments, the exhaust air duct volute 5 and the exhaust impeller 3 are arranged on the side close to the housing 7, and the fresh air duct volute 15, the fresh air impeller 14 and the air handler 13 are arranged on a side close to the panel 1. On the side, the panel 1 is provided with an inspection port for the air handler 13 to be inspected and repaired.

Referring to Fig. 8, the fresh air duct volute 15 and the exhaust air duct volute 5 can also be stacked along the length direction of the multifunctional bidirectional flow fresh air blower. In this embodiment, an inspection port may be provided on the panel 1 or the housing 7 for inspecting and repairing the air handler 13.

The fresh air circulation module also includes an overhaul cover 12, which is arranged at the aforementioned overhaul port.

The fresh air circulation module also includes a partition 24, which is used to divide the first circulation cavity into an independent fresh air cavity and an exhaust cavity. The fresh air impeller 14 and the fresh air duct volute 15 are located in the fresh air cavity, and the exhaust impeller 3 The exhaust air duct volute 5 is located in the exhaust cavity, so that the fresh air duct formed by the fresh air duct volute 15 and the exhaust air duct formed by the exhaust air duct volute 5 are independent of each other.

A through hole is opened in the middle of the partition 24, and the first driving motor 4 is inserted through the through hole.

Please refer to Figure 1 and Figure 3 in combination. The fresh air circulation module also includes a fresh air inlet 17 and a fresh air outlet 11. The fresh air inlet 17 faces outdoors, the fresh air outlet 11 faces indoors, and the fresh air inlet 17 and fresh air outlet 11 are connected to the fresh air. The air duct is connected. The air outlet of the fresh air duct volute 15 is connected to the fresh air outlet 11. Outdoor fresh air enters the room through the fresh air inlet 17, the fresh air duct volute 15, and the fresh air outlet 11 in turn.

The flow of the fresh air circulation module to realize the fresh air function is as follows: the fresh air impeller 14 is activated to generate negative pressure in the fresh air cavity; the fresh outdoor air enters the fresh air cavity through the fresh air inlet 17 and is purified by the air processor 13 to obtain clean fresh air (Fresh air); the fresh air enters the room through the fresh air duct volute 5 and the fresh air outlet 11.

In order to increase the indoor air purification rate, when sending fresh air to the room, the original indoor air needs to be discharged to the outdoors, that is, exhaust air. The fresh air circulation module also includes a first exhaust air inlet 2 and an exhaust air outlet 16, the first exhaust air inlet 2 faces indoors, the exhaust air outlet 16 faces outdoors, and the first exhaust air inlet 2 and exhaust air outlets 16 are connected with the exhaust air duct. The air outlet of the exhaust air duct volute 5 is connected with the exhaust air outlet 16. Indoor dirty air is discharged to the outdoors through the first exhaust air inlet 2, the exhaust cavity, the exhaust air duct volute 5 and the exhaust air outlet 16 in sequence. The exhaust process is as follows: the exhaust impeller 3 is activated to generate negative pressure in the exhaust cavity; indoor air enters the exhaust cavity through the first exhaust air inlet 2 and then passes through the exhaust air duct volute 5 and the exhaust air outlet 16 Exhaust to the outdoors.

In an embodiment, the fresh air duct volute 15 and the exhaust air duct volute 5 are stacked along the thickness direction of the multifunctional two-way flow fresh air blower. The fresh air impeller 14 and the fresh air duct volute 15 are arranged on the side close to the casing 7, and the exhaust air impeller 3 and the exhaust air duct volute 5 are arranged on the side close to the panel 1, and the second exhaust air is provided on the panel 1. The air inlet 21 and the second exhaust air inlet 21 are connected to the exhaust air duct. In other embodiments, the fresh air duct volute 15 and the exhaust air duct volute 5 can also be stacked along the length direction of the multifunctional bidirectional flow fresh air blower. The panel 1 is provided with a second exhaust air inlet 21. The exhaust air inlet 21 is connected to the exhaust air duct.

The second exhaust air inlet 21 and the first exhaust air inlet 2 are opened at the same time, and the old indoor air is introduced into the exhaust cavity, and discharged to the outside through the exhaust air duct volute 5 and the exhaust air outlet 16 to achieve enhanced indoor exhaust. The effect of qi.

In an embodiment, the ends of the fresh air outlet 11 and the first exhaust air inlet 2 are also connected with branch pipes, and are connected to various independent spaces such as bedroom, living room, bathroom, etc. through branch pipes, so as to increase multi-functionality. The scope of action of the two-way flow fresh air fan.

Please refer to Figure 2 and Figure 4, the functional module includes a functional fan, and the functional fan is located in the second circulation cavity. The functional fan includes a functional fan impeller 9, an air duct volute 10, and a second drive motor 8. The functional fan impeller 9 is formed in the air duct volute 10. The second drive motor 8 is used to drive the functional fan impeller 9 to rotate so that the second Negative pressure is generated in the circulation cavity. Two air outlets are provided on the outside of the air duct volute 10, one of which is an exhaust outlet 19, and the exhaust outlet 19 is connected to the outdoors through a pipe. The other air outlet is a functional return air outlet. In this embodiment, the functional return air outlet is a functional air outlet 18, and the functional air outlet 18 is arranged on the panel 1 and faces the room.

Please refer to Figure 1, the functional module also includes a functional air inlet 20. The functional air outlet 18, the exhaust outlet 19 and the functional air inlet 20 are all connected to the second circulation cavity.

In one embodiment, referring to FIGS. 5 and 6, the air duct volute 10 includes a first air outlet 10a and a second air outlet 10b. The first air outlet 10a is connected to the functional air outlet 18, and the second air outlet 10b is connected To the exhaust outlet 19. When the first air outlet 10a is opened, the functional module can realize the blowing function. When the second air outlet 10b is opened, the functional module can realize the exhaust function.

The functional module includes a valve 26 and a rotating motor. The valve 26 is rotatably arranged on the air duct volute. The rotating motor is used to drive the valve 26 to rotate in the first direction or the second direction. Referring to FIG. 5 or FIG. 6, when the rotating motor drives the valve 26 to rotate in the first direction, the first air outlet 10a can be opened and the second air outlet 10b can be closed. At this time, the functional air outlet 18 communicates with the inside of the air duct volute 10. The indoor air entering the second circulation cavity through the functional air inlet 20 is compressed in the air duct volute 10, and flows out from the first air outlet 10a, and forms a high-speed airflow at the functional air outlet 18, so that the functional module can achieve The function of indoor air blowing. The multifunctional two-way flow fan can be used in the kitchen as a cooler.

Referring to FIG. 7, when the rotating motor drives the valve 26 to rotate in the second direction, the second air outlet 10b can be opened and the first air outlet 10a can be closed. At this time, the exhaust outlet 19 is in communication with the inside of the air duct volute 10, and the functional air inlet 20, the second circulation cavity, the air duct volute 10, the second air outlet 10b and the exhaust outlet 19 form an exhaust channel, and the functional fan is started A negative pressure is generated in the second circulation cavity, and indoor air is discharged to the outdoors through the aforementioned exhaust passage, so that the functional module can realize the exhaust function. The setting of the valve 26 is beneficial to realize the switching between the exhaust function and the blowing function of the functional module.

In an embodiment, the functional module further includes an air heating device 6 which is arranged inside the functional air outlet 18 so that the functional module has a heating function. The realization of the heating function includes the following processes: the second drive motor 8 drives the functional fan impeller 9 to rotate, causing negative pressure in the second circulation cavity; indoor air enters the second circulation cavity through the functional air inlet 20 and is heated by the air heating device 6 Then, it enters the room through the functional air outlet 18 to increase the indoor temperature. In this embodiment, the multifunctional two-way flow fan can be used in the bathroom. When the user uses the bathroom and the indoor temperature is low, the heating function of the multifunctional two-way flow fan can be activated to increase the indoor temperature.

Please refer to FIG. 1 again, the functional air outlet 18 and the functional air inlet 20 are arranged on the right side of the panel 1. The first exhaust air inlet 2, the exhaust air outlet 16, the fresh air inlet 17, the fresh air outlet 11 and the exhaust outlet 19 are all arranged on the housing 7.

In an embodiment, the left part of the panel 1 is reserved space, and then the lighting unit 22 and/or the display screen 23 for displaying the operating status of the device can be installed.

The multifunctional two-way flow fan can be used in bathroom or kitchen. Assemble the components as shown in the figure, and then fix the outer side of the panel 1 on the ceiling of the room through a fixing buckle. It is understandable that the multifunctional two-way flow fan is embedded in the ceiling, and only the panel 1 is exposed.

The multifunctional two-way flow fresh air fan has fresh air function and heating function, and can be used in bathroom as a bathroom heater. The multifunctional two-way flow fresh air fan has fresh air function and blowing function, and can be used as a cooler in the kitchen. At this time, the inner side of the functional air outlet 18 is directly connected to the air outlet of the air duct volute 10.

The flow of the fresh air circulation module to realize the fresh air function is as follows: the first drive motor 4 drives the fresh air impeller 14 to rotate, so that negative pressure is generated in the fresh air cavity, and the outdoor fresh air is introduced into the fresh air cavity through the fresh air inlet 17; outdoor fresh air passes through After being processed by the air processor 13, fresh air is obtained; the fresh air is sent into the room through the fresh air outlet 11. In order to increase the indoor air purification rate, when sending fresh air to the room, the original indoor air needs to be discharged to the outdoors, that is, exhaust air. The exhaust process is as follows: the first drive motor 4 drives the exhaust impeller 3 to rotate, so that negative pressure is generated in the exhaust cavity. The old indoor air is introduced into the exhaust cavity through the first exhaust air inlet 2 and then passes through the exhaust air outlet 16 Send out outdoors.

The function module realizes the heating function process as follows: the second drive motor 8 drives the function fan impeller 9 to rotate, so that negative pressure is generated in the second circulation cavity; indoor air enters the second circulation cavity through the functional air inlet 20; the indoor air is heated by the air heating device 6 After heating, blow into the room through the functional air outlet 18 to increase the indoor temperature for heating. At this time, the exhaust outlet 19 is closed by an internal valve, and the function is switched. If the air heating device 6 is turned off, only the blowing function is realized.

The above-mentioned multifunctional two-way flow fresh air blower integrates multiple functions such as fresh air, heating, blowing and exhaust, which can effectively save installation space. Fresh air can be sent indoors through pipes, and the new air can be supplied and exhausted at the same time through the independent double air duct structure, which can truly bring fresh air into the room and discharge the old indoor air in time. When using the heating function, the fresh air function can also work independently to ensure that the fresh air runs for 24 hours. In addition, the separate fresh air or exhaust function can be enhanced by switching the clutch mechanism.

The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.

The above-mentioned embodiments only express several embodiments of the present invention, and the descriptions are more specific and detailed, but they should not be understood as limiting the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (14)

A multifunctional two-way flow fresh air fan is characterized by comprising a fresh air circulation module, the fresh air circulation module comprising a first circulation cavity and a fresh air impeller, an exhaust impeller, and a fresh air duct volute arranged in the first circulation cavity, The exhaust air duct volute and the first drive motor, the fresh air impeller and the exhaust air impeller are coaxially arranged, and are respectively arranged on the output shafts on both sides of the first drive motor, the fresh air duct volute A fresh air duct is formed inside, and an exhaust air duct is formed in the volute of the exhaust air duct; The side wall of the first circulation cavity is provided with a fresh air inlet, a fresh air outlet, a first exhaust air inlet and an exhaust air outlet, and the fresh air inlet and the fresh air outlet are all connected to the fresh air duct , The first exhaust air inlet and the exhaust air outlet are both connected to the exhaust air duct, the fresh air outlet and the first exhaust air inlet face the room, the fresh air inlet and the The exhaust air outlet is facing the outdoors; The fresh air circulation module further includes an air handler which is arranged at the air inlet end of the fresh air duct volute. The multifunctional two-way flow fresh air blower according to claim 1, wherein the fresh air circulation module further comprises a partition, and the partition is arranged on the fresh air duct volute and the exhaust air duct volute Between, to isolate the fresh air duct and the exhaust air duct. The multifunctional two-way flow fresh air fan according to claim 1, wherein the fresh air circulation module further comprises two clutch couplings, one of the clutch couplings is provided in the first drive motor Between the fresh air impeller and the fresh air impeller, another clutch coupling is provided between the first drive motor and the exhaust air impeller. The multifunctional two-way flow fresh air blower according to claim 1, wherein the multifunctional two-way flow fresh air blower further comprises a functional module, and the functional module comprises a second circulation cavity and is arranged in the second circulation cavity The functional fan includes an air duct volute, a side wall of the second circulation cavity is provided with a functional air inlet and a functional air outlet, the functional air inlet and the functional air outlet both face the room, and the air duct The volute includes a first air outlet, and the functional air outlet is in communication with the first air outlet. The multifunctional two-way flow fresh air fan according to claim 4, wherein the functional module further comprises an air heating device, and the air heating device is arranged toward the functional air outlet. The multifunctional two-way flow fresh air fan according to claim 4, wherein the side wall of the second circulation cavity is further provided with an exhaust outlet, the air duct volute includes a second air outlet, and the second air outlet The air outlet is connected to the exhaust outlet, and the functional module further includes a valve, which is rotatably arranged on the air duct volute and used to control the opening or closing state of the first air outlet and the second air outlet. The multifunctional two-way flow fresh air fan according to claim 4, wherein the multi-functional two-way flow fresh air fan comprises a casing and a panel covering the casing, and the casing and the panel enclose The first circulation cavity and the second circulation cavity are formed independent of each other, and the functional air inlet and the functional air outlet are both arranged on the panel. The multifunctional bidirectional flow fresh air blower according to claim 7, wherein the fresh air duct volute and the exhaust air duct volute are stacked in a thickness direction of the multi-kinetic energy bidirectional flow fresh air blower, so The fresh air impeller, the fresh air duct volute and the air handler are arranged on a side close to the panel, and the panel is provided with an inspection port for overhauling the air handler. The multifunctional bidirectional flow fresh air blower according to claim 7, wherein the fresh air duct volute and the exhaust air duct volute are stacked in a thickness direction of the multi-kinetic energy bidirectional flow fresh air blower, so The fresh air impeller, the fresh air duct volute and the air handler are arranged on a side close to the casing, and the casing is provided with an inspection port for overhauling the air handler. The multifunctional two-way flow fresh air fan according to claim 7, wherein the fresh air duct volute and the exhaust air duct volute are stacked along the length direction of the multi-kinetic energy two-way flow fresh air fan, so The panel or the housing is provided with an inspection port for inspecting and repairing the air handler. The multifunctional bidirectional flow fresh air blower according to claim 7, wherein the fresh air duct volute and the exhaust air duct volute are stacked in a thickness direction of the multi-kinetic energy bidirectional flow fresh air blower, so The fresh air impeller, the fresh air duct volute and the air handler are arranged on a side close to the casing, and the exhaust air impeller and the exhaust air duct volute are arranged on a side close to the panel On the side, the panel is also provided with a second exhaust air inlet, and the second exhaust air inlet is in communication with the exhaust air duct. The multifunctional two-way flow fresh air fan according to claim 7, wherein the fresh air duct volute and the exhaust air duct volute are stacked along the length direction of the multi-kinetic energy two-way flow fresh air fan, so The panel is also provided with a second exhaust air inlet, and the second exhaust air inlet is in communication with the exhaust air duct. The multifunctional two-way flow fresh air fan according to claim 7, characterized in that a display screen is provided on the panel for displaying the operating status of the equipment. A multifunctional two-way flow fresh air fan is characterized by comprising a fresh air circulation module, the fresh air circulation module comprising a first circulation cavity and a fresh air impeller, an exhaust impeller, and a fresh air duct volute arranged in the first circulation cavity, The exhaust air duct volute and the first drive motor, the fresh air impeller and the exhaust air impeller are coaxially arranged, and are respectively arranged on the output shafts on both sides of the first drive motor, the fresh air duct volute A fresh air duct is formed inside, and an exhaust air duct is formed in the volute of the exhaust air duct; The side wall of the first circulation cavity is provided with a fresh air inlet, a fresh air outlet, a first exhaust air inlet and an exhaust air outlet, and the fresh air inlet and the fresh air outlet are all connected to the fresh air duct , The first exhaust air inlet and the exhaust air outlet are both connected to the exhaust air duct, the fresh air outlet and the first exhaust air inlet face the room, the fresh air inlet and the The exhaust air outlet is facing the outdoors; The fresh air circulation module further includes an air processor for purifying the air flowing into the fresh air duct to obtain fresh air.

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