Air-conditioning type range hood

Abstract

The invention provides an air-conditioning type range hood. The air-conditioning type range hood comprises an air-conditioning hot air cavity and a range hood air cavity, a communication opening is formed between the air conditioner hot air cavity and the range hood air cavity, so that when the air conditioner type range hood refrigerates, hot air generated by the condensation end of the air conditioner type range hood enters the air conditioner hot air cavity, enters the range hood air cavity through the communication opening and then is discharged. The air-conditioning type range hood further comprises a non-return structure which is arranged at the communicating opening. The non-return structure comprises a shielding piece, and the shielding piece is movably arranged to have a closed state and a receding state; when the shielding piece is in the closed state, the shielding piece completely shields the communication opening, so that the communication opening is in the closed state; when the shielding piece is in the receding state, at least part of the shielding piece is away from the communication opening, so that the communication opening is in an open state. Through opening or closing of the communication opening, communication or isolation of the air conditioner hot air cavity and the range hood air cavity is achieved.

Description

Technical Field

[0001] This invention relates to the field of air-conditioning range hood technology, and more specifically, to an air-conditioning range hood. Background Technology

[0002] Kitchen air conditioning hoods are combined products that simultaneously extract cooking fumes and provide cooling. They must consider both fume extraction and the exhaust of hot and cold air from the air conditioner, while also preventing fumes from entering the air conditioner and contaminating the heat exchangers and radiators. This is because fumes can escape through the hot exhaust vents and contaminate the heat exchangers and radiators.

[0003] The exhaust vent of the air conditioner's range hood is experiencing smoke pollution. During the use of the kitchen air conditioner's range hood, the cooling function is only used during the hot summer months; for about six months, only the range hood function is used, and the air conditioning function is not. Over this long-term use, the exhaust vent of the air conditioning unit becomes contaminated with smoke, which gradually seeps into the interior of the air conditioning unit. Summary of the Invention

[0004] The main objective of this invention is to provide an air-conditioning type range hood to solve the problem that the air conditioning part of existing air-conditioning type range hoods is easily polluted by smoke.

[0005] To achieve the above objectives, the present invention provides an air-conditioning type range hood, which includes an air-conditioning hot air chamber and a range hood air chamber; the air-conditioning hot air chamber and the range hood air chamber have a connecting opening, so that when the air-conditioning type range hood is cooling, the hot air generated at its condenser end enters the air-conditioning hot air chamber, and then enters the range hood air chamber through the connecting opening before being discharged.

[0006] The air-conditioning type range hood also includes a backflow prevention structure, which is installed at the communication opening. The backflow prevention structure includes a blocking member, which is movably disposed to have a closed state and a yielding state; when the blocking member is in the closed state, the blocking member completely blocks the communication opening, so that the communication opening is in a closed state; when the blocking member is in the yielding state, at least a portion of the blocking member moves away from the communication opening, so that the communication opening is in an open state.

[0007] In one embodiment, the blocking member includes two first blocking portions, both of which are rotatably disposed about a preset axis, such that each first blocking portion has a closed state and a yielding state; the connecting opening includes a first opening portion and a second opening portion; when both first blocking portions are in the closed state, one first blocking portion completely blocks the first opening portion, and the other first blocking portion completely blocks the second opening portion; when both first blocking portions are in the yielding state, the two first blocking portions are respectively moved away from the first opening portion and the second opening portion.

[0008] Furthermore, the anti-reverse structure also includes a support shaft, and both first blocking parts are rotatably arranged around the support shaft, with the central axis of the support shaft being a preset axis.

[0009] Furthermore, two limiting members are provided on the inner wall of the connecting opening, and the two limiting members are provided one-to-one with the two first blocking parts; when each first blocking part rotates from its yielding state to its closed state, each first blocking part abuts against the corresponding limiting member, so that under the stopping action of the corresponding limiting member, each first blocking part is limited to its closed state.

[0010] Furthermore, a first return spring is provided on the support shaft so that, under the action of the first return spring, both first blocking parts rotate from the yielding state to the closed state.

[0011] Furthermore, during the process of each first shielding part rotating from its yielding state to its closed state, the first shielding part moves away from the range hood air cavity and closer to the air conditioner hot air cavity; during the process of each first shielding part rotating from its closed state to its yielding state, the first shielding part moves closer to the range hood air cavity and away from the air conditioner hot air cavity; the hot air in the air conditioner hot air cavity is the power that drives the first shielding part to rotate from the closed state to the yielding state.

[0012] Furthermore, the limiting member includes multiple limiting portions, each of which is abutting against all of the multiple limiting portions of the corresponding limiting member.

[0013] In another embodiment, the shielding member includes a plurality of second shielding portions, which are sequentially disposed at the communicating opening along a preset direction; each second shielding portion is rotatably disposed about a first axis so that the plurality of second shielding portions have a closed state and a yielding state; the first axes of the plurality of second shielding portions are parallel; when the plurality of second shielding portions are in the closed state, the plurality of second shielding portions are sequentially spliced ​​to completely block the communicating opening; when the plurality of second shielding portions are in the yielding state, there is a flow gap between two adjacent second shielding portions for airflow to pass through.

[0014] Furthermore, the air-conditioning type range hood also includes: a transmission part, which is movably disposed along a first direction; the first direction is perpendicular to a first axis; each second shielding part is rotatably disposed on the inner wall of the communicating opening around the first axis; and multiple second shielding parts are connected to the transmission part so that when the transmission part moves along the first direction, it drives each second shielding part to rotate around its respective first axis.

[0015] Furthermore, the air-conditioning type range hood includes a second return spring, the elastic extension direction of which is parallel or the same as the first direction; the second return spring is disposed between the inner wall of the communicating opening and the transmission part, so that under the elastic force of the second return spring, multiple second blocking parts rotate from the yielding state to the closed state; the hot air in the air-conditioning hot air cavity is the power that drives the multiple second blocking parts from the closed state to the yielding state. Alternatively, the air-conditioning type range hood includes a power component, the output part of which is connected to the transmission part to drive the transmission part to move along the first direction.

[0016] According to the technical solution of the present invention, the air-conditioning range hood includes an air-conditioning hot air chamber and a range hood air chamber; there is a connecting opening between the air-conditioning hot air chamber and the range hood air chamber, so that when the air-conditioning range hood is cooling, the hot air generated at its condenser end enters the air-conditioning hot air chamber, and then enters the range hood air chamber through the connecting opening before being discharged.

[0017] The air-conditioning type range hood also includes a backflow prevention structure, which is installed at the communication opening. The backflow prevention structure includes a blocking member, which is movably disposed to have a closed state and a yielding state; when the blocking member is in the closed state, the blocking member completely blocks the communication opening, so that the communication opening is in a closed state; when the blocking member is in the yielding state, at least a portion of the blocking member moves away from the communication opening, so that the communication opening is in an open state.

[0018] This application achieves the connection or isolation of the air conditioner's hot air cavity and the range hood's air cavity by opening or closing the connecting opening. When the air-conditioning range hood is cooling, the shield is in a yielding state, allowing the connecting opening to be open. When the air-conditioning range hood is not cooling, the shield is in a closed state, closing the connecting opening. At this time, the shield can effectively isolate the air conditioner's hot air cavity and the range hood's air cavity, preventing smoke from the range hood from drifting into the air conditioner, thereby avoiding smoke pollution of the air conditioner. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of an air-conditioning type range hood according to the present invention is shown from one perspective.

[0021] Figure 2 A structural schematic diagram of an air-conditioning range hood according to the present invention is shown from another perspective;

[0022] Figure 3A schematic diagram of the air conditioning section of the air-conditioning range hood according to the present invention and the anti-reverse structure of Embodiment 1 is shown; wherein, the first blocking part of the anti-reverse structure is in a closed state;

[0023] Figure 4 A schematic diagram of the air conditioning section of the air-conditioning range hood according to the present invention and the anti-reverse structure of Embodiment 1 is shown; wherein, the first blocking part of the anti-reverse structure is in a yielding state;

[0024] Figure 5 A schematic diagram of the range hood portion of the air-conditioning range hood according to the present invention and the anti-reverse structure of Embodiment 1 is shown; wherein, the first blocking part of the anti-reverse structure is in a closed state;

[0025] Figure 6 A schematic diagram of the cooperation structure between the first blocking part and the limiting member of the anti-reverse structure of an embodiment of the air-conditioning range hood according to the present invention is shown.

[0026] Figure 7 A schematic diagram of the cooperative structure of the first blocking part, the support shaft, and the first return spring of the anti-reverse structure of an embodiment of the air-conditioning range hood according to the present invention is shown.

[0027] Figure 8 A schematic diagram of the air conditioning section of the air-conditioning range hood according to the present invention and the anti-reverse structure of Embodiment 2 is shown; wherein, the plurality of second shielding parts of the anti-reverse structure are in a yielding state;

[0028] Figure 9 A schematic diagram of the range hood portion of the air-conditioning type range hood according to the present invention and the anti-reverse structure of Embodiment 2 is shown; wherein, the plurality of second shielding portions of the anti-reverse structure are in a yielding state;

[0029] Figure 10 A schematic diagram of the air conditioning section of the air-conditioning range hood according to the present invention and the anti-reverse structure of Embodiment 2 is shown; wherein, the plurality of second shielding parts of the anti-reverse structure are in a closed state;

[0030] Figure 11 A schematic diagram of the range hood portion of the air-conditioning range hood according to the present invention and the anti-reverse structure of Embodiment 2 is shown; wherein, the plurality of second blocking parts of the anti-reverse structure are in a closed state;

[0031] Figure 12 A schematic diagram of the anti-reverse structure of a second embodiment of the air-conditioning range hood according to the present invention is shown; wherein, the plurality of second blocking parts of the anti-reverse structure are in a closed state;

[0032] Figure 13A schematic diagram of the anti-reverse structure of a second embodiment of the air-conditioning range hood according to the present invention is shown; wherein, the plurality of second blocking parts of the anti-reverse structure are in a yielding state.

[0033] The above figures include the following reference numerals:

[0034] 100. Reversible structure;

[0035] 10. First blocking part; 101. Third blocking part; 102. Fourth blocking part; 11. Support shaft; 12. Limiting member; 1201. First limiting member; 1202. Second limiting member; 121. Limiting part; 13. First return spring;

[0036] 20. Connecting opening; 21. First opening; 22. Second opening;

[0037] 30. Second shielding part; 31. Transmission part; 311. Connecting rod; 32. Second return spring; 33. Transmission rod; 34. Connecting shaft; 35. Connecting part;

[0038] 91. Air conditioner hot air cavity; 92. Range hood air cavity. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0041] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] This invention provides an air-conditioning type range hood; please refer to [the relevant documentation]. Figures 1 to 13 The air-conditioning range hood includes an air-conditioning hot air chamber 91 and a range hood air chamber 92; there is a connecting opening 20 between the air-conditioning hot air chamber 91 and the range hood air chamber 92, so that when the air-conditioning range hood is cooling, the hot air generated by the condenser end of the air-conditioning range hood enters the air-conditioning hot air chamber 91, and then enters the range hood air chamber 92 through the connecting opening 20 before being discharged.

[0043] An air-conditioning range hood consists of an air conditioning unit and a range hood unit. Generally, an air-conditioning range hood has two operating modes: the first mode is where the air conditioning unit cools and the range hood unit absorbs cooking fumes; the second mode is where the air conditioning unit does not cool and the range hood unit absorbs cooking fumes. In the second mode, the air conditioning unit is not working, and only the range hood unit is operational. The air conditioning unit includes an air conditioning hot air chamber 91, and the range hood unit includes a range hood air chamber 92.

[0044] When the air conditioner is cooling, the cold air generated by the evaporator of the air conditioner is blown into the indoor environment, and the hot air generated by the condenser of the air conditioner is drawn into the air conditioner hot air cavity 91 by the suction force of the range hood air cavity 92. The hot air that enters the air conditioner hot air cavity 91 enters the range hood air cavity 92 through the connecting opening 20, and the hot air that enters the range hood air cavity 92 is discharged.

[0045] The air-conditioning type range hood also includes a backflow prevention structure 100, which is disposed at the connecting opening 20. The backflow prevention structure 100 includes a blocking member, which is movably disposed to have a closed state and a recessed state. When the blocking member is in the closed state, it completely blocks the connecting opening 20, thus closing the connecting opening 20; when the blocking member is in the recessed state, at least a portion of it moves away from the connecting opening 20, thus opening the connecting opening 20.

[0046] When the air-conditioning range hood is cooling, i.e., when the air-conditioning range hood is in its first operating state, the shielding part is in a yielding state so that the connecting opening 20 is in an open state.

[0047] When the air-conditioning range hood is not cooling, that is, when the air-conditioning range hood is in the second operating state, the shield is closed, so that the connecting opening 20 is closed. At this time, the shield can effectively isolate the air-conditioning hot air chamber 91 and the range hood air chamber 92, preventing the smoke from the range hood from drifting to the air-conditioning part, thereby avoiding smoke pollution of the air-conditioning part.

[0048] This application achieves the connection or isolation of the air conditioner hot air cavity 91 and the range hood air cavity 92 by opening or closing the connecting opening 20.

[0049] Example 1

[0050] like Figures 3 to 7 As shown, this embodiment provides a first specific structure of the anti-reverse structure 100.

[0051] In this embodiment, the blocking member includes two first blocking portions 10; both first blocking portions 10 are rotatably arranged around a preset axis, so that each first blocking portion 10 has a closed state and a yielding state. The connecting opening 20 includes a first opening portion 21 and a second opening portion 22. The two first blocking portions 10 are a third blocking portion 101 and a fourth blocking portion 102, respectively.

[0052] When both first blocking parts 10 are in the closed state, one first blocking part 10 completely blocks the first opening 21, and the other first blocking part 10 completely blocks the second opening 22, so that both the first opening 21 and the second opening 22 are in the closed state, thereby closing the connecting opening 20. That is, the third blocking part 101 completely blocks the first opening 21, and the fourth blocking part 102 completely blocks the second opening 22.

[0053] When both first blocking parts 10 are in the yielding state, the two first blocking parts 10 move away from the first opening 21 and the second opening 22 respectively, so that both the first opening 21 and the second opening 22 are in the open state, thereby making the connecting opening 20 open. That is, the third blocking part 101 moves away from the first opening 21, and the fourth blocking part 102 moves away from the second opening 22.

[0054] Optionally, the first shielding part 10 is a plate-like structure. Further, the first shielding part 10 is a blade-like structure.

[0055] Optionally, when the first blocking part 10 is in a closed state, the first blocking part 10 is perpendicular to the central axis of the communicating opening 20.

[0056] Optionally, when the first blocking part 10 is in the yielding state, the first blocking part 10 is parallel to the central axis of the connecting opening 20.

[0057] In this embodiment, the anti-reverse structure 100 also includes a support shaft 11, and both first blocking parts 10 are rotatably arranged around the support shaft 11, with the central axis of the support shaft 11 being a preset axis.

[0058] Specifically, both first shielding parts 10 are rotatably mounted on the support shaft 11.

[0059] Specifically, the support shaft 11 is fixedly connected to the inner wall of the connecting opening 20, that is, both ends of the support shaft 11 are fixedly inserted into the inner wall of the connecting opening 20.

[0060] In this embodiment, two limiting members 12 are provided on the inner wall of the connecting opening 20, and the two limiting members 12 are provided one-to-one with the two first blocking parts 10. When each first blocking part 10 rotates from its yielding state to its closed state, each first blocking part 10 abuts against the corresponding limiting member 12, so that under the stopping action of the corresponding limiting member 12, each first blocking part 10 is limited to its closed state.

[0061] In this embodiment, the limiting member 12 includes a plurality of limiting portions 121, and each first blocking portion 10 is used to abut against all of the plurality of limiting portions 121 of the corresponding limiting member 12. That is, when each first blocking portion 10 rotates from its yielding state to its closed state, each first blocking portion 10 abuts against all of the plurality of limiting portions 121 of the corresponding limiting member 12, so that under the common stopping action of the plurality of limiting portions 121 of the corresponding limiting member 12, each first blocking portion 10 is limited to its closed state.

[0062] Optionally, the limiting part 121 is a columnar structure.

[0063] Optionally, the two limiting members 12 are a first limiting member 1201 and a second limiting member 1202, with a plurality of limiting portions 121 of the first limiting member 1201 distributed circumferentially along the first opening 21, and a plurality of limiting portions 121 of the second limiting member 1202 distributed circumferentially along the second opening 22.

[0064] In this embodiment, a first return spring 13 is provided on the support shaft 11 so that, under the action of the first return spring 13, both first blocking parts 10 rotate from the yielding state to the closed state.

[0065] Specifically, the first return spring 13 is sleeved on the support shaft 11. Further, the first return spring 13 is fixedly sleeved on the support shaft 11.

[0066] Specifically, the first return spring 13 is a torsion spring.

[0067] Specifically, the two ends of the first return spring 13 press against the two first blocking parts 10 respectively.

[0068] Optionally, there may be multiple first return springs 13, which are distributed along the axial direction of the support shaft 11. For example... Figure 7 Two first return springs 13 are set in the middle.

[0069] In this embodiment, during the process of each first shielding part 10 rotating from its yielding state to its closed state, the first shielding part 10 moves away from the range hood air cavity 92 and closer to the air conditioning hot air cavity 91. During the process of each first shielding part 10 rotating from its closed state to its yielding state, the first shielding part 10 moves closer to the range hood air cavity 92 and further away from the air conditioning hot air cavity 91. The hot air within the air conditioning hot air cavity 91 provides the power to drive each first shielding part 10 to rotate from its closed state to its yielding state.

[0070] Specifically, when the air conditioning unit starts cooling, the hot air generated at the condenser end enters the air conditioning hot air cavity 91. The force of the hot air exerts a force on the two first shielding parts 10 to overcome the force of the first return spring 13, thereby causing each first shielding part 10 to rotate from its closed state to its yielding state. When the air conditioning unit stops cooling, the force applied to each first shielding part 10 decreases until it disappears. Under the force of the first return spring 13, each first shielding part 10 rotates from its yielding state to its closed state.

[0071] Specifically, each limiting member 12 is located on the side of the corresponding first shielding part 10 away from the smoke hood cavity 92, that is, each limiting member 12 is located on the side of the corresponding first shielding part 10 close to the air conditioning hot air cavity 91.

[0072] Figure 3 and Figure 4 The downward arrow indicates the direction of the hot air. Figure 6 In the middle, both first blocking parts 10 rotate downward so that the two first blocking parts 10 rotate from the closed state to the yielding state. Figure 7 In the middle, both first blocking parts 10 rotate upward so that the two first blocking parts 10 rotate from the closed state to the yielding state.

[0073] Example 2

[0074] like Figures 8 to 13 As shown, this embodiment provides a second specific structure for the anti-reverse structure 100.

[0075] In this embodiment, the shielding member includes a plurality of second shielding parts 30, which are sequentially arranged at the communicating opening 20 along a preset direction; each second shielding part 30 is rotatably arranged around a first axis so that the plurality of second shielding parts 30 have a closed state and a yielding state; the first axes of the plurality of second shielding parts 30 are all parallel.

[0076] When the multiple second blocking parts 30 are in the closed state, the multiple second blocking parts 30 are sequentially spliced ​​together to completely block the connecting opening 20. When the multiple second blocking parts 30 are in the yielding state, there is a flow gap between two adjacent second blocking parts 30 for airflow to pass through.

[0077] In this embodiment, a plurality of connecting shaft groups are provided on the inner wall of the connecting opening 20, and the plurality of connecting shaft groups are provided in a one-to-one correspondence with a plurality of second blocking parts 30; each connecting shaft group includes two connecting shafts 34, and the two connecting shafts 34 of each connecting shaft group are respectively fixedly provided on the inner walls of the two sides of the connecting opening 20, and the central axes of the two connecting shafts 34 of each connecting shaft group coincide; the two ends of each second blocking part 30 are respectively rotatably sleeved on the two connecting shafts 34 of the corresponding connecting shaft group, and the central axis of the two connecting shafts 34 of each connecting shaft group is the first axis of the corresponding second blocking part 30.

[0078] Specifically, each end of the second shielding part 30 is provided with a connecting part 35, and each end of the second shielding part 30 is rotatably sleeved on a connecting shaft 34 of a corresponding connecting shaft group through the connecting part 35.

[0079] Optionally, the second shielding portion 30 and the connecting portion 35 are perpendicular to each other.

[0080] Optionally, the second shielding part 30 is a plate-like structure. Further, the second shielding part 30 is a blade-like structure.

[0081] Optionally, the connecting part 35 is a plate-like structure.

[0082] In this embodiment, the air-conditioning range hood further includes a transmission part 31, which is movably disposed along a first direction; the first direction is perpendicular to the first axis; each second shielding part 30 is rotatably disposed on the inner wall of the communicating opening 20 around the first axis; the plurality of second shielding parts 30 are connected to the transmission part 31 so that when the transmission part 31 moves along the first direction, it drives each second shielding part 30 to rotate together around its respective first axis.

[0083] Specifically, the connecting portion 35 at the same end of the plurality of second blocking portions 30 are all connected to the transmission portion 31, that is, each second blocking portion 30 is connected to the transmission portion 31 through the connecting portion 35.

[0084] Specifically, the transmission part 31 is located inside the communication opening 20.

[0085] Optionally, there are two transmission parts 31, which are synchronously movably arranged along a first direction; the two ends of the second blocking part 30 are respectively a first end and a second end; the connecting parts 35 of the first ends of the plurality of second blocking parts 30 are all connected to one transmission part 31, and the connecting parts 35 of the second ends of the plurality of second blocking parts 30 are all connected to the other transmission part 31; when the two transmission parts 31 move synchronously along the first direction, they drive each second blocking part 30 to rotate around its respective first axis. The two transmission parts 31 are connected by a connector to ensure that the two transmission parts 31 move synchronously.

[0086] Optionally, the transmission part 31 is provided with connecting rods 311 at both ends along the first direction, that is, the transmission part 31 is provided with two connecting rods 311; the first end of the connecting rod 311 is fixedly connected to the transmission part 31, and the second end of the connecting rod 311 is movably inserted through the inner wall of the communicating opening 20 along the first direction; the axial direction of the connecting rod 311 is parallel or the same as the first direction.

[0087] Optionally, a linear bearing is provided between the connecting rod 311 and the inner wall of the communicating opening 20, so that the connecting rod 311 can move relative to the inner wall of the communicating opening 20 in a first direction.

[0088] In this embodiment, the first driving method is as follows: the air-conditioning range hood includes a second return spring 32, the elastic extension direction of which is parallel or the same as the first direction; the second return spring 32 is disposed between the inner wall of the communicating opening 20 and the transmission part 31, so that under the elastic force of the second return spring 32, the second blocking part 30 rotates from the yielding state to the closed state. The hot air in the air-conditioning hot air cavity 91 is the power that drives the multiple second blocking parts 30 to rotate from the closed state to the yielding state.

[0089] When the air conditioning unit starts cooling, the hot air generated at the condenser end enters the air conditioning hot air cavity 91. The force of the hot air exerts a force on the multiple second blocking parts 30, overcoming the force of the second return spring 32, thereby causing the multiple second blocking parts 30 to rotate from the closed state to the yielding state. During this process, the multiple second blocking parts 30 drive the transmission part 31 to move along the first direction, and the second return spring 32 is compressed. When the air conditioning unit stops cooling, the force applied to the multiple second blocking parts 30 decreases until it disappears. Under the rebound force of the second return spring 32, the second return spring 32 drives the transmission part 31 to move along the first direction. The transmission part 31 drives the multiple second blocking parts 30 to rotate from the yielding state to the closed state.

[0090] Specifically, the second return spring 32 is disposed between the inner wall of the communicating opening 20 and one end of the transmission part 31 along the first direction.

[0091] Specifically, the second return spring 32 is sleeved on a connecting rod 311 of the transmission part 31.

[0092] Optionally, there are two second return springs 32, and the two second return springs 32 are arranged in a one-to-one correspondence with the two transmission parts 31. Each second return spring 32 is disposed between the inner wall of the communicating opening 20 and the corresponding transmission part 31; the elastic extension and contraction directions of the two second return springs 32 are parallel.

[0093] Optionally, the connecting member includes a transmission rod 33, which connects the two transmission parts 31, that is, the two ends of the transmission rod 33 are fixedly connected to the two transmission parts 31 respectively.

[0094] Optionally, one end of the transmission rod 33 is fixedly connected to a connecting rod 311 at one end of a transmission part 31, and the other end of the transmission rod 33 is fixedly connected to a connecting rod 311 at one end of another transmission part 31.

[0095] Optionally, the transmission rod 33 is located outside the communicating opening 20.

[0096] In this embodiment, the second driving method is as follows: the air-conditioning type range hood includes a power component, the output part of which is connected to the transmission part 31, so that the power component drives the transmission part 31 to move in the first direction. Specifically, by moving the output part of the power component in the opposite direction, the transmission part 31 is driven to move in the first direction and in the opposite direction, so that each second blocking part 30 rotates in the opposite direction, thereby causing the multiple second blocking parts 30 to rotate from the closed state to the yielding state, or from the yielding state to the closed state.

[0097] In the second driving method, there is no need to set a second reset spring 32.

[0098] Optionally, the connecting member includes a transmission rod 33, which connects the two transmission parts 31, that is, the two ends of the transmission rod 33 are fixedly connected to the two transmission parts 31 respectively.

[0099] Optionally, one end of the transmission rod 33 is fixedly connected to a connecting rod 311 at one end of a transmission part 31, and the other end of the transmission rod 33 is fixedly connected to a connecting rod 311 at one end of another transmission part 31.

[0100] Optionally, the output part of the power component is connected to the transmission rod 33 so that the power component drives the two transmission parts 31 to move synchronously in the first direction through the transmission rod 33.

[0101] Optionally, the power component can be a telescopic electric cylinder, a telescopic pneumatic cylinder, or a linear motor.

[0102] Optionally, both the transmission rod 33 and the power component are located outside the connecting opening 20.

[0103] In this embodiment, the third driving method is: instead of setting up a transmission part 31, a second reset spring 32, and a power component, a motor plus a transmission mechanism is used to drive multiple second blocking parts 30 to rotate.

[0104] In this embodiment, the multiple second shielding parts 30 are similar to a venetian blind structure.

[0105] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0106] In the air-conditioning range hood provided by the present invention, the air-conditioning range hood includes an air-conditioning hot air chamber 91 and a range hood air chamber 92; there is a connecting opening 20 between the air-conditioning hot air chamber 91 and the range hood air chamber 92, so that when the air-conditioning range hood is cooling, the hot air generated by the condenser end of the air-conditioning range hood enters the air-conditioning hot air chamber 91, and enters the range hood air chamber 92 through the connecting opening 20 and is then discharged.

[0107] An air-conditioning range hood consists of an air conditioning unit and a range hood unit. Generally, an air-conditioning range hood has two operating modes: the first mode is where the air conditioning unit cools and the range hood unit absorbs cooking fumes; the second mode is where the air conditioning unit does not cool and the range hood unit absorbs cooking fumes. In the second mode, the air conditioning unit is not working, and only the range hood unit is operational. The air conditioning unit includes an air conditioning hot air chamber 91, and the range hood unit includes a range hood air chamber 92.

[0108] When the air conditioner is cooling, the cold air generated by the evaporator of the air conditioner is blown into the indoor environment, and the hot air generated by the condenser of the air conditioner is drawn into the air conditioner hot air cavity 91 by the suction force of the range hood air cavity 92. The hot air that enters the air conditioner hot air cavity 91 enters the range hood air cavity 92 through the connecting opening 20, and the hot air that enters the range hood air cavity 92 is discharged.

[0109] The air-conditioning type range hood also includes a backflow prevention structure 100, which is disposed at the connecting opening 20. The backflow prevention structure 100 includes a blocking member, which is movably disposed to have a closed state and a recessed state. When the blocking member is in the closed state, it completely blocks the connecting opening 20, thus closing the connecting opening 20; when the blocking member is in the recessed state, at least a portion of it moves away from the connecting opening 20, thus opening the connecting opening 20.

[0110] When the air-conditioning range hood is cooling, i.e., when the air-conditioning range hood is in its first operating state, the shielding part is in a yielding state so that the connecting opening 20 is in an open state.

[0111] When the air-conditioning range hood is not cooling, that is, when the air-conditioning range hood is in the second operating state, the shield is closed, so that the connecting opening 20 is closed. At this time, the shield can effectively isolate the air-conditioning hot air chamber 91 and the range hood air chamber 92, preventing the smoke from the range hood from drifting to the air-conditioning part, thereby avoiding smoke pollution of the air-conditioning part.

[0112] This application achieves the connection or isolation of the air conditioner hot air cavity 91 and the range hood air cavity 92 by opening or closing the connecting opening 20.

[0113] To prevent fumes from penetrating the air conditioning unit during range hood operation, isolation measures are needed at the connection opening 20 between the air conditioning unit and the range hood unit. This application provides a backflow preventer structure 100 at the connection opening 20 to prevent fumes from drifting into the air conditioning unit, thereby improving the cooling performance of the air conditioning unit.

[0114] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0115] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0116] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An air-conditioning type range hood, comprising an air-conditioning hot air chamber (91) and a range hood air chamber (92); wherein the air-conditioning hot air chamber (91) and the range hood air chamber (92) have a connecting opening (20) so that when the air-conditioning type range hood is cooling, the hot air generated at its condenser end enters the air-conditioning hot air chamber (91), and then enters the range hood air chamber (92) through the connecting opening (20) before being discharged; characterized in that, The air-conditioning type range hood also includes a backflow prevention structure (100), which is disposed at the communication opening (20); The anti-reverse structure (100) includes a blocking member, which is movably disposed to have a closed state and a yielding state; when the blocking member is in the closed state, the blocking member completely blocks the communication opening (20) so that the communication opening (20) is in a closed state; when the blocking member is in the yielding state, at least a portion of the blocking member moves away from the communication opening (20) so that the communication opening (20) is in an open state.

2. The air-conditioning type range hood according to claim 1, characterized in that, The shielding member includes two first shielding parts (10), both of which are rotatably arranged around a preset axis so that each first shielding part (10) has a closed state and a yielding state; The connecting opening (20) includes a first opening (21) and a second opening (22); when both first blocking parts (10) are in a closed state, one first blocking part (10) completely blocks the first opening (21), and the other first blocking part (10) completely blocks the second opening (22). When both first blocking parts (10) are in the yielding state, the two first blocking parts (10) are respectively away from the first opening (21) and the second opening (22).

3. The air-conditioning type range hood according to claim 2, characterized in that, The anti-reverse structure (100) also includes a support shaft (11), and the two first blocking parts (10) are rotatably arranged around the support shaft (11), with the central axis of the support shaft (11) being the preset axis.

4. The air-conditioning type range hood according to claim 2, characterized in that, Two limiting members (12) are provided on the inner wall of the connecting opening (20). The two limiting members (12) are provided one-to-one with the two first blocking parts (10). When each first blocking part (10) rotates from its yielding state to its closed state, each first blocking part (10) abuts against the corresponding limiting member (12) so that each first blocking part (10) is limited to its closed state under the stopping action of the corresponding limiting member (12).

5. The air-conditioning type range hood according to claim 3, characterized in that, A first return spring (13) is provided on the support shaft (11) so that, under the action of the first return spring (13), both first blocking parts (10) are rotated from the yielding state to the closed state.

6. The air-conditioning type range hood according to claim 5, characterized in that, During the process of each of the first shielding parts (10) rotating from its yielding state to its closed state, the first shielding part (10) moves away from the range hood air cavity (92) and closer to the air conditioning hot air cavity (91); during the process of each of the first shielding parts (10) rotating from its closed state to its yielding state, the first shielding part (10) moves closer to the range hood air cavity (92) and away from the air conditioning hot air cavity (91); the hot air in the air conditioning hot air cavity (91) is the power that drives the first shielding part (10) to rotate from its closed state to its yielding state.

7. The air-conditioning type range hood according to claim 4, characterized in that, The limiting member (12) includes a plurality of limiting portions (121), each of the first blocking portions (10) being used to abut against the plurality of limiting portions (121) of the corresponding limiting member (12).

8. The air-conditioning type range hood according to claim 1, characterized in that, The shielding component includes a plurality of second shielding parts (30), which are sequentially arranged at the communicating opening (20) along a preset direction; each of the second shielding parts (30) is rotatably arranged around a first axis so that the plurality of second shielding parts (30) have a closed state and a yielding state; the first axes of the plurality of second shielding parts (30) are all parallel; When the plurality of second blocking parts (30) are in a closed state, the plurality of second blocking parts (30) are sequentially spliced ​​together to completely block the communicating opening (20). When the plurality of second shielding parts (30) are in a yielding state, there is a flow gap between two adjacent second shielding parts (30) for airflow to pass through.

9. The air-conditioning type range hood according to claim 8, characterized in that, The air-conditioning type range hood also includes: A transmission part (31) is movably disposed along a first direction; the first direction is perpendicular to the first axis; each second shielding part (30) is rotatably disposed on the inner wall of the communicating opening (20) around the first axis; the plurality of second shielding parts (30) are connected to the transmission part (31) so that when the transmission part (31) moves along the first direction, it drives each second shielding part (30) to rotate around its respective first axis.

10. The air-conditioning type range hood according to claim 9, characterized in that, The air-conditioning type range hood includes: The second return spring (32) has an elastic extension direction that is parallel to or the same as the first direction; the second return spring (32) is disposed between the inner wall of the communicating opening (20) and the transmission part (31) so that under the elastic force of the second return spring (32), the plurality of second blocking parts (30) rotate from the yielding state to the closed state; the hot air in the air conditioning hot air cavity (91) is the power that drives the plurality of second blocking parts (30) to rotate from the closed state to the yielding state; or A power component, the output of which is connected to the transmission component (31) to drive the transmission component (31) to move in a first direction.

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