Exhaust device and air conditioner

Abstract

The exhaust device and air conditioner of the present invention are mainly composed of an air outlet assembly, an exhaust pipe, and an exhaust fan assembly. The air outlet assembly of the exhaust device of the present invention is provided with a first anti-backflow device, and / or the exhaust fan assembly is provided with a second anti-backflow device, which can effectively prevent the backflow of gas. The first anti-backflow device of the present invention adopts a rubber sheet in combination with a cover plate, which has a simple structure, is easy to replace, has significant effects, and has a good anti-backflow effect; the second anti-backflow device of the present invention uses a baffle plate in combination with a rib, and uses the deadweight of the baffle plate to achieve anti-backflow, which has a novel and ingenious structure, has significant effects, and has a good anti-backflow effect.

Description

Technical Field

[0001] The invention relates to the field of ventilation, and in particular to an exhaust device and an air conditioner. Background Art

[0002] Most families tend to close doors and windows when using air conditioners, which can save electricity. However, this also has disadvantages. As time goes by, the indoor air quality will become worse and worse, the indoor oxygen will be insufficient, and the carbon dioxide gas will continue to increase. Especially when there are many people indoors, there will be a serious lack of oxygen in the air. However, if the doors and windows are opened, the ventilation area of ​​the doors and windows is too large, and the air flows too fast, resulting in a decrease in the cooling and heating effect of the air conditioner.

[0003] In the past, air conditioners could only circulate indoor air to achieve cooling and heating effects, which could not ensure the freshness of indoor air. With the continuous development of the air conditioning industry, a new type of air conditioner has emerged. This air conditioner has a ventilation function, which can inhale fresh air from the outside into the room, and then use the air conditioner for cooling and heating, which not only ensures the comfort of customers, but also maintains the quality of indoor air. However, the exhaust device of the above air conditioner will cause wind backflow when the outdoor wind is strong. Summary of the invention

[0004] In view of this, the present invention provides an exhaust device and an air conditioner to prevent the wind from flowing back from the exhaust device.

[0005] Specifically: an exhaust device, comprising: an air outlet assembly, an exhaust pipe and an exhaust fan assembly, the air outlet assembly is connected with the exhaust fan assembly through the exhaust pipe, the air outlet assembly comprises a first air outlet and a first interface, the exhaust fan assembly comprises a second air outlet and a second interface, wherein the first interface is connected with one end of the exhaust pipe, and the second interface is connected with the other end of the exhaust pipe;

[0006] The air outlet assembly includes a first anti-backflow device, which allows gas to flow from the first air outlet to the first interface while preventing gas from flowing from the first interface to the first air outlet; and / or, the exhaust fan assembly includes a second anti-backflow device, which allows gas to flow from the second interface to the second air outlet while preventing gas from flowing from the second air outlet to the second interface.

[0007] Preferably, the first backflow prevention device includes an elastic sheet, which is located between the first air outlet and the first interface; when the airflow flows from the first interface to the first air outlet, the elastic member blocks the first flow channel between the first air outlet and the first interface; when the airflow flows from the first air outlet to the first interface, the elastic sheet can be deformed so as to no longer block the first flow channel between the first air outlet and the first interface.

[0008] Preferably, the air outlet assembly also includes a first shell, a cover plate and a joint, and the cover plate is located between the first shell and the joint; wherein the cover plate is fixedly connected to or integrally formed with the first shell, one end of the joint is fixedly connected to or integrally formed with the first shell, and the other end of the joint forms a first interface; a plurality of holes are formed on the first shell, and the plurality of holes form the first air outlet.

[0009] Preferably, the cover plate is formed with a center hole, and the center hole is connected with the first air outlet and the first interface; a support portion is formed inside the center hole, and a clamping portion is formed on the elastic sheet, and the elastic sheet is fixedly connected to the support portion through the clamping portion; when the airflow flows from the first interface to the first air outlet, the elastic member abuts against the support portion and covers the center hole; when the airflow flows from the first air outlet to the first interface, the elastic sheet can be deformed, thereby forming an airflow channel between the elastic sheet and the center hole.

[0010] Preferably, the exhaust fan assembly includes a box body, a second interface and a second air outlet are formed on the box body, and a second flow channel connecting the second interface and the second air outlet is formed inside the box body; the second anti-backflow device is arranged inside the box body, and the second anti-backflow device includes a baffle, one end of the baffle can rotate relative to the box body, and the other end is a free end; when the airflow flows from the second air outlet to the second interface, the baffle can block the second flow channel under the action of gravity; when the airflow flows from the second interface to the second air outlet, the baffle can no longer block the second flow channel under the action of airflow pressure.

[0011] Preferably, a fixing frame is provided inside the box body, the baffle is fixedly connected to the box body via the fixing frame, and one end of the baffle is rotatably connected to the fixing frame.

[0012] Preferably, a first rib is also provided inside the box body, and the free end of the baffle can move between a first position and a second position. In the first position, the free end of the baffle abuts against the first rib, blocking the second flow channel; in the second position, the free end of the baffle is separated from the first rib, and no longer blocks the second flow channel.

[0013] Preferably, a second rib, a third rib and a fourth rib are further provided inside the box body; when the free end of the baffle abuts against the first rib, the first rib, the second rib, the third rib, the fourth rib and the baffle divide the box body into a first part and a second part which are not connected to the gas, the first part is connected to the second interface, and the second part is connected to the second air outlet.

[0014] Preferably, a fifth rib is formed in the box body, and the second rib is formed into an arc structure. The gas entering from the second interface is guided by the arc structure, and then guided by the fifth rib, passes through the fan, and flows out from the second air outlet.

[0015] The present invention provides an air conditioner, comprising the exhaust device of the present invention.

[0016] Preferably, the air outlet assembly is arranged indoors, the exhaust fan assembly is arranged outdoors, and the second interface of the exhaust fan assembly is located above the second air outlet in the vertical direction.

[0017] The present invention improves the situation where backflow of wind occurs in the exhaust device due to weather reasons through an ingenious and simple design.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail its exemplary embodiments with reference to the accompanying drawings. The accompanying drawings described below are only some embodiments of the present disclosure, and it is clear to a person skilled in the art that other accompanying drawings can be obtained from these accompanying drawings without creative work.

[0020] Figure 1 A three-dimensional schematic diagram of an exhaust device according to an embodiment of the present invention.

[0021] Figure 2 An exploded schematic diagram of an air outlet assembly according to an embodiment of the present invention.

[0022] Figure 3 One of the cross-sectional schematic diagrams of the air outlet assembly according to the embodiment of the present invention.

[0023] Figure 4 The second schematic cross-sectional view of the air outlet assembly according to the embodiment of the present invention.

[0024] Figure 5 One schematic diagram of an exhaust fan assembly according to an embodiment of the present invention.

[0025] Figure 6 The second schematic diagram of the exhaust fan assembly according to the embodiment of the present invention.

[0026] Among them: 1-air outlet assembly, 2-exhaust pipe, 3-exhaust fan assembly, 11-first shell, 12-cover plate, 13-first interface, 14-first air outlet, 15-elastic sheet, 16-clamping portion; 17-connector, 31-fixed frame, 32-baffle, 33-centrifugal fan, 34-circuit board, 35-second interface, 36-second air outlet, 41-first rib, 42-second rib, 43-third rib, 44-fourth rib, 45-fifth rib, 46-sixth rib, 47-seventh rib. DETAILED DESCRIPTION

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0028] In addition, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

[0029] It should be understood that although the terms first, second, third, etc. may be used herein to describe various structures, these structures should not be limited by these terms. These terms are used to distinguish one structure from another structure. Therefore, the first structure discussed below can be referred to as the second structure without departing from the teachings of the disclosed concepts. As used herein, the term "and / or" includes any one of the associated listed items and all combinations of one or more.

[0030] Those skilled in the art will appreciate that the drawings are merely schematic diagrams of example embodiments, and the modules or processes in the drawings are not necessarily necessary for implementing the present disclosure, and therefore cannot be used to limit the protection scope of the present disclosure.

[0031] The following is combined with Figure 1-6 The contents of the specific implementation modes of the present invention are described in detail:

[0032] like Figure 1 As shown, the exhaust device of the present invention is mainly composed of an air outlet assembly 1, an exhaust pipe 2, and an exhaust fan assembly 3. The air outlet assembly 1 is installed on the wall on the indoor side, the exhaust pipe 2 is installed on the wall and the outdoor side, and the exhaust fan assembly 3 is installed on the outdoor side. The existing exhaust fan assembly 3 is installed on the outdoor side, and some customers live in high-rise buildings with relatively large air volume. In case of strong winds, the wind can easily flow back into the room from the exhaust fan outlet. The exhaust device of the present invention solves the problem of backflow of wind very well.

[0033] The exhaust device of the embodiment of the present invention comprises: an air outlet assembly 1, an exhaust pipe 2 and an exhaust fan assembly 3, the air outlet assembly 1 is connected with the exhaust fan assembly 3 through the exhaust pipe 2, the air outlet assembly 1 comprises a first air outlet 14 and a first interface 13, the exhaust fan assembly 3 comprises a second air outlet and a second interface 35, wherein the first interface 13 is connected with one end of the exhaust pipe 2, and the second interface 35 is connected with the other end of the exhaust pipe 2;

[0034] The air outlet assembly 1 includes a first anti-backflow device, which allows gas to flow from the first air outlet 14 to the first interface 13, while preventing gas from flowing from the first interface 13 to the first air outlet 14; and / or, the exhaust fan assembly 3 includes a second anti-backflow device, which allows gas to flow from the second interface 35 to the second air outlet 36, while preventing gas from flowing from the second air outlet 36 to the second interface 35.

[0035] The air outlet assembly 1 located on the indoor side is structurally arranged to allow air to flow from the indoor side to the exhaust pipe 2, but not to allow air to flow from the exhaust pipe 2 to the indoor side. The exhaust device air outlet assembly 1 uses the elastic sheet 15 and the injection molded part to cooperate to allow air to flow from the indoor side to the exhaust pipe 2, but not to allow air to flow from the exhaust pipe 2 to the indoor side. The elastic sheet 15 can be a rubber sheet, and the injection molded part can be a cover plate 12.

[0036] like Figure 2-4 As shown, the first backflow prevention device includes an elastic sheet 15, which is located between the first air outlet 14 and the first interface 13; when the airflow flows from the first interface 13 to the first air outlet 14, the elastic member blocks the first flow channel between the first air outlet 14 and the first interface 13; when the airflow flows from the first air outlet 14 to the first interface 13, the elastic sheet 15 can be deformed so as to no longer block the first flow channel between the first air outlet 14 and the first interface 13.

[0037] The air outlet assembly 1 also includes a first shell 11, a cover plate 12 and a joint 17, wherein the cover plate 12 is located between the first shell 11 and the joint 17; wherein the cover plate 12 is fixedly connected to or integrally formed with the first shell 11, one end of the joint 17 is fixedly connected to or integrally formed with the first shell 11, and the other end of the joint 17 forms a first interface 13; a plurality of holes are formed on the first shell 11, and the plurality of holes form the first air outlet 14.

[0038] The cover plate 12 is formed with a central hole, which is connected with the first air outlet 14 and the first interface 13; a support portion is formed inside the central hole, and a clamping portion 16 is formed on the elastic sheet 15, and the elastic sheet 15 is fixedly connected to the support portion through the clamping portion 16; when the airflow flows from the first interface 13 to the first air outlet 14, the elastic member abuts against the support portion and covers the central hole; when the airflow flows from the first air outlet 14 to the first interface 13, the elastic sheet 15 can be deformed, so that an airflow channel is formed between the elastic sheet 15 and the central hole. The support portion is a cross-shaped structure, and a clamping hole is formed in the center thereof, and the clamping portion 16 is fixed to the support portion through the clamping hole.

[0039] The air outlet assembly 1 controls the backflow of air by closing and opening the rubber sheet. The air outlet assembly 1 is composed of a first shell 11, a cover plate 12, a rubber sheet and a joint 17. The rubber sheet is installed in the circular hole at the center of the cover plate 12 using the mushroom head self-locking principle, so that the rubber sheet will not separate from the cover plate 12. When the exhaust device is not in operation, the rubber sheet is attached to the baffle 32. If the wind force outside is strong, the air enters the air outlet assembly 1 through the exhaust fan and the exhaust pipe 2, and the air flow hits the rubber sheet. Because the four ribs in the middle of the cover plate 12 block the rubber sheet, the rubber sheet is only attached to the cover plate 12, and the air cannot enter the room through the rubber sheet.

[0040] When the exhaust device is in working state, driven by the operation of the fan in the exhaust fan, the rubber sheet will open, and the indoor air will continuously flow into the exhaust pipe 2 through the gap between the cover plate 12 and the rubber sheet and then be discharged to the outside.

[0041] The exhaust fan assembly 3 of the embodiment of the present invention includes a box body, a second interface 35 and a second air outlet 36 are formed on the box body, and a second flow channel connecting the second interface 35 and the second air outlet 36 is formed inside the box body; a second backflow prevention device is arranged inside the box body, and the second backflow prevention device includes a baffle 32, one end of the baffle 32 can rotate relative to the box body, and the other end is a free end; when the airflow flows from the second air outlet 36 to the second interface 35, the baffle 32 can block the second flow channel under the action of gravity; when the airflow flows from the second interface 35 to the second air outlet 36, the baffle 32 can no longer block the second flow channel under the action of airflow pressure. Preferably, a fixing frame 31 is provided inside the box body, and the baffle 32 is fixedly connected to the box body through the fixing frame 31, and one end of the baffle 32 is rotatably connected to the fixing frame 31.

[0042] A first rib 41 is also provided inside the box body, and the free end of the baffle 32 can move between a first position and a second position. In the first position, the free end of the baffle 32 abuts against the first rib 41 to block the second flow channel; in the second position, the free end of the baffle 32 is separated from the first rib 41 and no longer blocks the second flow channel.

[0043] The box body is further provided with a second rib 42, a third rib 43 and a fourth rib 44; when the free end of the baffle 32 abuts against the first rib 41, the first rib 41, the second rib 42, the third rib 43, the fourth rib 44 and the baffle 32 divide the box body into a first part and a second part that are not in gas communication, the first part is in communication with the second interface 35, and the second part is in communication with the second air outlet 36. The second rib 42 and the sixth rib 46 in the box body together enclose a space for accommodating the transformer and the circuit board 34.

[0044] A fifth rib 45 is also formed in the box body, and the second rib 42 is formed into an arc structure. The gas entering from the second interface 35 is guided by the arc structure, and then guided by the fifth rib 45, passes through the fan, and flows out from the second air outlet 36. The fan of the present invention can be a centrifugal fan 33. After being guided by the fifth rib 45, the airflow can rise a certain distance along the fifth rib 45 and enter more conveniently from the axial air inlet of the centrifugal fan 33. A seventh rib 47 is also formed in the box body, and the seventh rib 47 is used to support the baffle 32 and reduce the supporting pressure borne by the first rib 41.

[0045] The fan may be a centrifugal fan 33, and the exhaust port of the centrifugal fan 33 is connected to the second air outlet 36 of the box body.

[0046] The air conditioner of the embodiment of the present invention comprises the exhaust device of the present invention. The air outlet assembly 1 is arranged indoors, the exhaust fan assembly 3 is arranged outdoors, and the second interface 35 of the exhaust fan assembly 3 is located above the second air outlet 36 .

[0047] Beneficial effects:

[0048] The exhaust device of the present invention is mainly composed of an air outlet assembly, an exhaust pipe, and an exhaust fan assembly. The air outlet assembly of the exhaust device of the present invention is provided with a first anti-backflow device, and / or the exhaust fan assembly is provided with a second anti-backflow device, which can effectively prevent the backflow of gas. The first anti-backflow device of the present invention adopts a rubber sheet in combination with a cover plate, which has a simple structure, is easy to replace, has significant effects, and has a good anti-backflow effect; the second anti-backflow device of the present invention adopts a baffle plate in combination with a rib, and uses the deadweight of the baffle plate to achieve anti-backflow, which has a novel and ingenious structure, has significant effects, and has a good anti-backflow effect.

[0049] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. An exhaust device, comprising: An air outlet assembly (1), an exhaust pipe (2) and an exhaust fan assembly (3), wherein the air outlet assembly (1) and the exhaust fan assembly (3) are connected via the exhaust pipe (2), and are characterized in that: the air outlet assembly (1) comprises a first air outlet (14) and a first interface (13), and the exhaust fan assembly (3) comprises a second air outlet (36) and a second interface (35), wherein the first interface (13) is connected to one end of the exhaust pipe (2), and the second interface (35) is connected to the other end of the exhaust pipe (2); The air outlet assembly (1) comprises a first backflow prevention device, the first backflow prevention device allows gas to flow from the first air outlet (14) to the first interface (13), while preventing gas from flowing from the first interface (13) to the first air outlet (14); and / or the exhaust fan assembly (3) comprises a second backflow prevention device, the second backflow prevention device allows gas to flow from the second interface (35) to the second air outlet (36), while preventing gas from flowing from the second air outlet (36) to the second interface (35); The exhaust fan assembly (3) comprises a box body, a second interface (35) and a second air outlet (36) are formed on the box body, and a second flow channel connecting the second interface (35) and the second air outlet (36) is formed inside the box body; a second backflow prevention device is arranged inside the box body, and the second backflow prevention device comprises a baffle (32), one end of the baffle (32) can rotate relative to the box body, and the other end is a free end; when the airflow flows from the second air outlet (36) to the second interface (35), the baffle (32) can block the second flow channel under the action of gravity; when the airflow flows from the second interface (35) to the second air outlet (36), the baffle (32) can not block the second flow channel under the action of airflow pressure; A first rib (41) is also provided inside the box body, and the free end of the baffle (32) can move between a first position and a second position. In the first position, the free end of the baffle (32) abuts against the first rib (41) to block the second flow channel; in the second position, the free end of the baffle (32) is separated from the first rib (41) to not block the second flow channel. A second rib (42), a third rib (43) and a fourth rib (44) are further provided inside the box body; when the free end of the baffle plate (32) abuts against the first rib (41), the first rib (41), the second rib (42), the third rib (43), the fourth rib (44) and the baffle plate (32) divide the box body into a first part and a second part that are not in gas communication, the first part being in communication with the second interface (35) and the second part being in communication with the second air outlet (36); The exhaust fan assembly comprises a centrifugal fan (33), and an exhaust port of the centrifugal fan (33) is connected to a second air outlet (36) of the box body; A fifth rib (45) is also formed in the box body, and the second rib (42) is formed into an arc-shaped structure. The gas entering from the second interface (35) is guided by the arc-shaped structure, then guided by the fifth rib (45), passes through the fan, and flows out from the second air outlet (36). When the airflow flows through the fifth rib (45), it can rise along the fifth rib (45).

2. The exhaust device according to claim 1, characterized in that: The first backflow prevention device comprises an elastic sheet (15), the elastic sheet (15) being located between the first air outlet (14) and the first interface (13); when airflow flows from the first interface (13) to the first air outlet (14), the elastic member blocks a first flow channel between the first air outlet (14) and the first interface (13); when airflow flows from the first air outlet (14) to the first interface (13), the elastic sheet (15) can be deformed so as not to block the first flow channel between the first air outlet (14) and the first interface (13).

3. The exhaust device according to claim 2, characterized in that: The air outlet assembly (1) further comprises a first shell (11), a cover plate (12) and a joint (17), wherein the cover plate (12) is located between the first shell (11) and the joint (17); wherein the cover plate (12) is fixedly connected to or integrally formed with the first shell (11), one end of the joint (17) is fixedly connected to or integrally formed with the first shell (11), and the other end of the joint (17) forms a first interface (13); and the first shell (11) forms the first air outlet (14).

4. The exhaust device according to claim 3, characterized in that: The cover plate (12) is formed with a central hole, and the central hole is connected with the first air outlet (14) and the first interface (13); a support portion is formed inside the central hole, and the elastic sheet (15) is formed with a clamping portion (16), and the elastic sheet (15) is fixedly connected to the support portion via the clamping portion (16); when airflow flows from the first interface (13) to the first air outlet (14), the elastic member abuts against the support portion to cover the central hole; when airflow flows from the first air outlet (14) to the first interface (13), the elastic sheet (15) is deformed, so that an airflow channel is formed between the elastic sheet (15) and the central hole.

5. An air conditioner, characterized in that: The air conditioner comprises the exhaust device according to any one of claims 1-4.

6. The air conditioner according to claim 5, characterized in that: The air outlet assembly (1) is arranged indoors, the exhaust fan assembly (3) is arranged outdoors, and the second interface (35) of the exhaust fan assembly (3) is located above the second air outlet (36) in the vertical direction.

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