Ventilation device and air conditioner thereof

Abstract

The application provides a ventilation device and an air conditioner thereof, the ventilation device comprising an air duct assembly and an air outlet assembly, the air duct assembly having a first air cavity, a second air cavity and a third air cavity, the air outlet assembly comprising a supply air assembly and an exhaust air assembly, the supply air assembly being provided with a supply air fan and a filter and having a first air inlet and a supply air outlet, the exhaust air assembly being provided with an exhaust air fan and having a second air inlet and an exhaust air outlet, the first air cavity being provided with a fresh air inlet, an internal circulation air inlet and a first air duct opening, the second air cavity being provided with an exhaust air inlet and a second air duct opening, the third air cavity being provided with an exhaust air outlet and a third air duct opening, and the air duct assembly having a first state in which the fresh air inlet, the internal circulation air inlet, the exhaust air inlet and the exhaust air outlet are simultaneously opened. The application can more efficiently purify the air in the indoor environment and improve the indoor air quality.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, specifically relating to a ventilation device and its air conditioner. Background Technology

[0002] Air conditioners are devices that can cool or heat indoor spaces. As living standards improve, users are seeking more than just cooling and heating functions from air conditioners. A large segment of users are increasingly demanding higher indoor air quality, leading to the emergence of fresh air conditioners with air quality improvement functions.

[0003] Most fresh air conditioners on the market currently only have a fresh air function (that is, introducing outdoor air into the room). A few fresh air conditioners are equipped with fresh air, exhaust air (that is, exhausting indoor air to the outside) and internal circulation (circulating and filtering indoor air). However, their fresh air, exhaust air and internal circulation functions are mostly controlled and operated independently. Generally, based on the user's objective needs or the air conditioner's built-in program, one function is selected to operate alone, with priority given to one ventilation mode. That is, their various ventilation functions have different priorities. Some products have a mode in which the fresh air and exhaust air functions operate simultaneously for the purpose of heat recovery from indoor exhaust air. However, for situations where the indoor air quality is too poor, relying solely on introducing fresh air and expelling stale air has a low efficiency in improving indoor air quality. Summary of the Invention

[0004] Therefore, the present invention provides a ventilation device and its air conditioner, which can solve the technical problem that the fresh air function, exhaust air function and internal circulation function of the ventilation device in the prior art cannot operate simultaneously, resulting in low efficiency in improving indoor air quality.

[0005] To address the aforementioned problems, the present invention provides a ventilation device, comprising a duct assembly and an air outlet assembly. The duct assembly has independent first, second, and third air chambers. The air outlet assembly includes a supply air assembly and an exhaust air assembly. The supply air assembly includes a supply air fan and a filter, and has a first air inlet and an air outlet. The exhaust air assembly includes an exhaust air fan, and has a second air inlet and an exhaust air outlet. The first air chamber has a fresh air inlet controllably connected to the outdoor environment, an internal circulation air inlet controllably connected to the indoor environment, and a first duct opening connected to the first air inlet. The second air chamber has an exhaust air inlet controllably connected to the indoor environment and a second duct opening connected to the second air inlet. The third air chamber has an exhaust air outlet controllably connected to the outdoor environment and a third duct opening connected to the exhaust air outlet. The duct assembly has a first state in which the fresh air inlet, internal circulation air inlet, exhaust air inlet, and exhaust air outlet are simultaneously open.

[0006] In some embodiments, the duct assembly also has a second state in which the fresh air inlet, the internal circulation air inlet, the exhaust air inlet, and the exhaust air outlet are all closed simultaneously, and the duct assembly can be controlled to switch between the first state and the second state.

[0007] In some embodiments, the duct assembly includes a duct cylinder, a damper cylinder fitted with the duct cylinder, and a duct motor. The damper cylinder has a plurality of through holes that extend through its interior and exterior and are spaced apart. The duct motor can drive the damper cylinder to rotate around the duct cylinder to change the relative positions of each of the through holes with the fresh air inlet, the internal circulation air inlet, the exhaust air inlet, and the exhaust air outlet, thereby enabling the duct assembly to switch between the first state and the second state.

[0008] In some embodiments, the air duct cylindrical body includes an open cylinder and a cover covering the opening of the open cylinder. The first air duct opening, the second air duct opening, and the third air duct opening are all formed on the cover. A partition plate is provided in the hollow space formed between the open cylinder and the cover, and the partition plate divides the hollow space into the first air cavity, the second air cavity, and the third air cavity.

[0009] In some embodiments, an annular groove is formed in the side wall of the open cylinder, the annular groove extending from the bottom end face of the open cylinder toward the opening side, and the side wall of the damper cylinder is inserted into the annular groove.

[0010] In some embodiments, a recessed cavity is formed on the bottom end face of the open cylinder, which is recessed toward the opening side of the open cylinder, and the air duct motor is housed and assembled in the recessed cavity.

[0011] In some embodiments, the free end of the output shaft of the duct motor is fixedly connected to the geometric center of the bottom of the duct cylinder.

[0012] In some embodiments, the duct assembly further has a third state in which the fresh air inlet and the internal circulation air inlet are simultaneously closed, and the exhaust air inlet and the exhaust air outlet are simultaneously open; or, a fourth state in which the fresh air inlet and the internal circulation air inlet are simultaneously open, and the exhaust air inlet and the exhaust air outlet are simultaneously closed; or, a fifth state in which the fresh air inlet is open, and the internal circulation air inlet, the exhaust air inlet, and the exhaust air outlet are simultaneously closed; or, a sixth state in which the fresh air inlet is closed, and the internal circulation air inlet, the exhaust air inlet, and the exhaust air outlet are simultaneously open; or, a seventh state in which the internal circulation air inlet is open, and the fresh air inlet, the exhaust air inlet, and the exhaust air outlet are simultaneously closed; or, an eighth state in which the internal circulation air inlet is closed, and the fresh air inlet, the exhaust air inlet, and the exhaust air outlet are simultaneously open.

[0013] In some embodiments, the fresh air inlet, the internal circulation air inlet, and the exhaust air inlet are all formed on the side wall of the open cylinder, and the exhaust air outlet is formed on the bottom wall of the open cylinder. A total of ten through holes are provided, namely, a first hole, a second hole, a third hole, a fourth hole, a fifth hole, a sixth hole, a seventh hole, an eighth hole, a ninth hole, and a tenth hole. The first, second, third, fourth, fifth, and sixth holes are sequentially spaced along a first rotation direction on the side wall of the damper cylinder, and the seventh, eighth, ninth, and tenth holes are sequentially spaced along the first rotation direction on the bottom wall of the damper cylinder. When the duct assembly is in the first state, the first hole is connected to the fresh air inlet, the second hole is connected to the exhaust air inlet, the sixth hole is connected to the internal circulation air inlet, and the seventh hole is connected to the exhaust air outlet. When the damper cylinder is driven to rotate a preset angle along the first rotation direction, the duct assembly is in the second state.

[0014] In some embodiments, the duct assembly is initially in the second state. When the damper cylinder is driven to rotate along the second rotation direction, the duct assembly is sequentially switched to the first state, the third state, the fourth state, the fifth state, the sixth state, the seventh state, and the eighth state, with the second rotation direction being opposite to the first rotation direction.

[0015] In some embodiments, the centers of the first, second, third, fourth, fifth, and sixth holes are all located on a first circle coaxial with the central axis of the damper cylinder. The centers of the seventh, eighth, ninth, and tenth holes are all located on a second circle coaxial with the central axis of the damper cylinder. The projection of the center of the sixth hole onto the bottom wall of the damper cylinder and the center of the tenth hole are on the same radius of the bottom wall of the damper cylinder. Along the first direction of rotation and with the center of the bottom wall of the damper cylinder as the apex angle, the central angle formed between the centers of the seventh and eighth holes is 60°, the central angle formed between the centers of the eighth and ninth holes is 180°, and the central angle formed between the centers of the ninth and tenth holes is 30°. The center of the first hole is located on the damper cylinder. The central angle formed between the projection of the center of the second hole on the bottom wall of the damper cylinder and the projection of the center of the third hole on the bottom wall of the damper cylinder is 60°. The central angle formed between the projection of the center of the second hole on the bottom wall of the damper cylinder and the projection of the center of the third hole on the bottom wall of the damper cylinder and the projection of the center of the fourth hole on the bottom wall of the damper cylinder is 30°. The central angle formed between the projection of the center of the fourth hole on the bottom wall of the damper cylinder and the projection of the center of the fifth hole on the bottom wall of the damper cylinder is 90°. The central angle formed between the projection of the center of the fifth hole on the bottom wall of the damper cylinder and the projection of the center of the sixth hole on the bottom wall of the damper cylinder is 60°.

[0016] The present invention also provides an air conditioner including the above-described ventilation device.

[0017] The ventilation device and air conditioner provided by the present invention have the following beneficial effects:

[0018] When the air duct assembly is in the first state, the outdoor fresh air and the internal circulating airflow introduced by the fresh air inlet and the internal circulation air inlet respectively enter the first air cavity and then enter the air supply assembly through the first air duct opening. After being filtered by the filter, the air is delivered to the indoor space. At the same time, the airflow in the indoor space enters the second air cavity and is discharged to the outdoor environment through the second air duct opening, the exhaust assembly, the third air duct opening, the third air cavity, and the exhaust outlet under the action of the exhaust assembly. This realizes the simultaneous operation of the fresh air function, the internal circulation function, and the exhaust function of the ventilation component of the present invention, which can more efficiently purify the indoor air and improve the indoor air quality more efficiently. Attached Figure Description

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the ventilation device according to an embodiment of the present invention from one perspective;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of the ventilation device according to an embodiment of the present invention from another perspective;

[0022] Figure 3 yes Figure 1 An exploded view of the components of the ventilation device.

[0023] Figure 4 yes Figure 1 A disassembled structural diagram of the ventilation device in the middle;

[0024] Figure 5 yes Figure 4 A three-dimensional structural diagram of the cylindrical air duct in the middle;

[0025] Figure 6 yes Figure 5 A three-dimensional structural diagram of the open cylinder (view from top to bottom);

[0026] Figure 7 yes Figure 5 A three-dimensional structural diagram of the open cylinder (viewed from below);

[0027] Figure 8 yes Figure 4 The top view of the damper cylinder in the figure shows that the holes indicated by the dotted lines are placeholder holes. They are not actual through holes that penetrate the inner and outer sides of the damper cylinder, but rather imaginary holes used to locate the relative positions of each hole on its circumference. A total of 12 holes are shown in the figure, with an included angle of 30° between adjacent holes.

[0028] Figure 9 yes Figure 4 A bottom view of the cylinder of the damper in the middle;

[0029] Figure 10This is a three-dimensional structural diagram of the damper cylinder in Figure 4. The holes shown by the dotted lines in the figure are placeholder holes. They are not through holes that penetrate the inner and outer sides of the solid damper cylinder, but rather imaginary holes used to locate the relative positions of each hole on its circumference. A total of 12 holes are shown in the figure. The included angle between two adjacent holes is 30°, and each hole on the side wall corresponds one-to-one with each hole on the bottom wall.

[0030] The attached figures are labeled as follows:

[0031] 1. Air duct assembly; 11. First air chamber; 111. First air duct opening; 112. Second air duct opening; 113. Third air duct opening; 12. Second air chamber; 13. Third air chamber; 14. Air duct cylindrical body; 141. Opening cylindrical body; 142. Cover body; 143. Partition plate; 144. Annular groove; 145. Recessed cavity; 15. Air damper cylindrical body; 1511, First hole; 1512, Second hole; 1513, Third hole; 1514, Fourth hole; 1515, Fifth hole; 1516, Sixth hole; 1517, Seventh hole; 1518, Eighth hole; 1519, Ninth hole; 1510, Tenth hole; 16, Duct motor; 2, Air outlet assembly; 21, Air supply assembly; 211, Air supply fan; 212, Filter element; 213, Filter element holder; 214, First volute; 215, Second volute; 216, First sealing cover; 217, Air outlet; 22, Exhaust assembly; 221, Exhaust fan; 222, Third volute; 223, Fourth volute; 224, Second sealing cover; 101, Fresh air inlet; 102, Internal circulation air inlet; 103, Exhaust air inlet; 104, Exhaust air outlet. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0034] 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° or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0035] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0036] See also Figures 1 to 10As shown in the figure, according to an embodiment of the present invention, a ventilation device is provided, including a duct assembly 1 and an air outlet assembly (not labeled in the figure). The duct assembly 1 has a first air chamber 11, a second air chamber 12, and a third air chamber 13 that are independent of each other. The air outlet assembly includes an air supply assembly 21 and an air exhaust assembly 22. The air supply assembly 21 is provided with an air supply fan 211 (including air supply blades and a drive motor that drives its rotation; in a specific embodiment, the air supply fan 211 is a centrifugal fan), a filter element 212 (e.g., a HEPA filter), and the air supply assembly 21 has a first air inlet (not labeled in the figure) and an air outlet 217. The air exhaust assembly 22 is provided with an exhaust fan 221 (including exhaust blades and a drive motor that drives its rotation; in a specific embodiment, the exhaust fan 221 is also a centrifugal fan), and the exhaust assembly 22 has a second air inlet (not labeled in the figure) and an air outlet (not labeled in the figure). The first air chamber 11 has a fresh air inlet 101 that is controllably connected to the outdoor environment, an internal circulation air inlet 102 that is controllably connected to the indoor environment, and a first air duct opening 111 that is connected to the first air inlet. The second air chamber 12 has an exhaust air inlet 103 that is controllably connected to the indoor environment and a second air duct opening 112 that is connected to the second air inlet. The third air chamber 13 has an exhaust air outlet 104 that is controllably connected to the outdoor environment and a third air duct opening 113 that is connected to the exhaust air outlet. The air duct assembly 1 has a first state in which the fresh air inlet 101, the internal circulation air inlet 102, the exhaust air inlet 103, and the exhaust air outlet 104 are all opened simultaneously. It is understood that the airflow (fresh air and / or internal circulation airflow) delivered by the aforementioned air outlet 217 is generally transported to the air inlet side of the heat exchanger of the corresponding air conditioner so that necessary cooling or heating can be performed before the air is delivered to the indoor space, thereby improving the comfort of the corresponding air conditioner.

[0037] In this technical solution, when the air duct component 1 is in the first state, the outdoor fresh air and the internal circulating airflow introduced by the fresh air inlet 101 and the internal circulation air inlet 102 respectively enter the first air cavity 11 and enter the air supply component 21 in sequence through the first air duct opening 111. After being filtered by the filter element 212, the air is delivered to the indoor space. At the same time, the airflow in the indoor space enters the second air cavity 12 and is discharged to the outdoor environment in sequence through the second air duct opening 112, the exhaust component 22, the third air duct opening 113, the third air cavity 13, and the exhaust outlet 104 under the action of the exhaust component 22. This realizes the simultaneous operation of the fresh air function, the internal circulation function, and the exhaust function of the ventilation component of the present invention, which can more efficiently purify the air in the indoor environment and more efficiently improve the indoor air quality.

[0038] See details Figure 4As shown, the air supply assembly also includes a filter element mounting bracket 213, on which the filter element 212 is detachably assembled. The air supply fan 211 is located in the first air duct cavity formed between the first volute 214 and the second volute 215, with axial air intake and tangential air exhaust. A fan inlet is formed on the second volute 215, on which a first sealing cover 216 is assembled. The aforementioned filter element 212 is located between the first sealing cover 216 and the second volute 215 to filter and purify the airflow (fresh air or internal circulation airflow) entering the air supply fan 211. The exhaust assembly 22 also includes a third volute 222 and a fourth volute 223. The exhaust fan 221 is located in the second air duct cavity formed between the third volute 222 and the fourth volute 223, with axial air intake and tangential air exhaust. A fan inlet is formed on the fourth volute 223, on which a second sealing cover 224 is assembled.

[0039] In another preferred embodiment, the duct assembly 1 also has a second state in which the fresh air inlet 101, the internal circulation air inlet 102, the exhaust air inlet 103, and the exhaust air outlet 104 are all closed. The duct assembly 1 can be controlled to switch between the first state and the second state. That is, when the duct assembly 1 is in the second state, its fresh air function, internal circulation function, and exhaust air function are all in a non-operating state. This second state can objectively be used as the initial state of the duct assembly 1. That is, when the ventilation device stops operating or is not controlled to be in a certain functional mode, the aforementioned fresh air inlet 101, internal circulation air inlet 102, exhaust air inlet 103, and exhaust air outlet 104 are all closed, which can prevent low-quality air in the outdoor environment from being driven into the indoor environment by external forces.

[0040] See details Figure 4 As shown, in some embodiments, the air duct assembly 1 includes an air duct cylindrical body 14, an air damper cylindrical body 15 sleeved with the air duct cylindrical body 14, and an air duct motor 16 (specifically, a stepper motor can be used). The air damper cylindrical body 15 has a plurality of through holes (not labeled in the figure) that penetrate its inner and outer parts and are spaced apart. The air duct motor 16 can drive the air damper cylindrical body 15 to rotate around the air duct cylindrical body 14 to change the relative position of each of the through holes with the fresh air inlet 101, the internal circulation air inlet 102, the exhaust air inlet 103, and the exhaust air outlet 104, thereby realizing the switching of the air duct assembly 1 between the first state and the second state.

[0041] In this technical solution, the duct cylinder 14 and the damper cylinder 15 are fitted together, that is, they are coaxially arranged and have an inner and outer nested fit. The duct motor 16 drives the damper cylinder 15 to rotate around the central axis of the duct cylinder 14, thereby adjusting the relative positions of the through holes on the damper cylinder 15 with the fresh air inlet 101, internal circulation air inlet 102, exhaust air inlet 103, and exhaust air outlet 104 on the duct cylinder 14. This allows the corresponding fresh air inlet 101, internal circulation air inlet 102, and exhaust air outlet 104 to be adjusted when the inner and outer holes are aligned. 03 and the exhaust outlet 104 are opened (i.e. connected), otherwise the aforementioned fresh air inlet 101, internal circulation air inlet 102, exhaust air inlet 103 or exhaust outlet 104 are closed (i.e. cut off) by the solid part of the damper cylinder 15. Thus, it can be seen that the on / off selection control of the aforementioned fresh air inlet 101, internal circulation air inlet 102, exhaust air inlet 103 or exhaust outlet 104 can be realized by one duct motor 16 in this invention, thereby realizing the state switching of the duct component 1, which can simplify the structural design of the ventilation device and significantly reduce the manufacturing cost of the ventilation device.

[0042] See also Figure 4 As shown, the air duct cylindrical body 14 includes an open cylinder 141 and a cover 142 covering the opening of the open cylinder 141. The first air duct opening 111, the second air duct opening 112 and the third air duct opening 113 are all formed on the cover 142. A partition plate 143 is provided in the hollow space formed between the open cylinder 141 and the cover 142. The partition plate 143 divides the hollow space into the first air cavity 11, the second air cavity 12 and the third air cavity 13. The structural form of the aforementioned partition plate 143 is not limited in this invention. In principle, it is sufficient to achieve an independent layout of each air cavity.

[0043] In this technical solution, by designing the duct cylinder 14 as a structure formed by assembling an open cylinder 141 and a cover 142, the manufacturing difficulty can be reduced. It is understood that, in use, the aforementioned cover 142 can serve as a mounting carrier for the aforementioned air supply assembly 21 and exhaust assembly 22. The modular assembly structure also allows for the use of materials with high structural strength to manufacture the cover 142, thereby improving its structural strength and ensuring its service life. Furthermore, in a feasible embodiment, the cover 142 can also be used as a fixing connector between the entire ventilation device and corresponding components of the air conditioner.

[0044] See details Figure 7As shown, in some embodiments, an annular groove 144 is formed in the side wall of the open cylinder 141. The annular groove 144 extends from the bottom end face of the open cylinder 141 toward the opening side. That is, the annular groove 144 is an opening groove with the opening located on the bottom end face of the open cylinder 141. The side wall of the damper cylinder 15 is inserted into the annular groove 144. It is understood that when the side wall of the damper cylinder 15 is inserted into the annular groove 144, the inner wall surface of the bottom wall of the damper cylinder 15 should fit against the outer wall surface of the bottom wall of the duct cylinder 14, and the gap between the mating surfaces of the two should be as small as possible to ensure the airtightness of the mating surfaces.

[0045] In this technical solution, by setting an annular groove 144 on the bottom end face of the open cylinder 141 and inserting the side wall of the damper cylinder 15 into the annular groove 144, the radial inner and outer sides of the damper cylinder 15 are limited, thereby ensuring the smooth drive of the duct motor 16 to rotate the damper cylinder 15.

[0046] See also Figure 6 and Figure 7 As shown, in some embodiments, a recessed cavity 145 is formed on the bottom end face of the open cylinder 141, which is recessed toward the opening side of the open cylinder 141. The air duct motor 16 is housed and assembled in the recessed cavity 145. That is, the air duct motor 16 is specifically assembled with the fixed open cylinder 141 as a whole, which is simple and compact in structure.

[0047] In some embodiments, the free end of the output shaft of the duct motor 16 is fixedly connected to the geometric center of the bottom of the duct cylinder 14. That is, the duct motor 16 directly drives the rotation of the duct cylinder 14 without the need for a corresponding transmission structure, and the structure and control are relatively simple.

[0048] In some embodiments, the air duct assembly 1 further has a third state in which the fresh air inlet 101 and the internal circulation air inlet 102 are simultaneously closed, and the exhaust air inlet 103 and the exhaust air outlet 104 are simultaneously open. That is, in this state, the ventilation device only operates the exhaust function and does not operate the fresh air function or the internal circulation function. Alternatively, there is a fourth state in which the fresh air inlet 101 and the internal circulation air inlet 102 are simultaneously open, and the exhaust air inlet 103 and the exhaust air outlet 104 are simultaneously closed. That is, in this state, the fresh air function and the internal circulation function are operated simultaneously, while the exhaust function is not operated. Alternatively, there is a fifth state in which the fresh air inlet 101 is open, and the internal circulation air inlet 102, the exhaust air inlet 103, and the exhaust air outlet 104 are simultaneously closed. That is, in this state, the fresh air function is operated, while the internal circulation function is not operated. The system can be categorized into several states: 1) The fresh air function and exhaust function are not operating; or 2) The fresh air inlet 101 is closed, and the internal circulation inlet 102, exhaust inlet 103, and exhaust outlet 104 are simultaneously opened (a sixth state where the internal circulation and exhaust functions operate, but the fresh air function is not operating); 3) The internal circulation inlet 102 is opened, and the fresh air inlet 101, exhaust inlet 103, and exhaust outlet 104 are simultaneously closed (a seventh state where the internal circulation function operates, but the fresh air and exhaust functions are not operating); or 4) The internal circulation inlet 102 is closed, and the fresh air inlet 101, exhaust inlet 103, and exhaust outlet 104 are simultaneously opened (an eighth state where the fresh air and exhaust functions operate simultaneously, but the internal circulation function is not operating). Thus, the ventilation device of the present invention simultaneously possesses eight operating modes, including simultaneous operation of fresh air function, internal circulation function, and exhaust function, as well as simultaneous non-operation of all three. This greatly enriches the operating conditions of the ventilation device and meets various user needs. In terms of specific implementation, corresponding mode buttons can be set on the controller of the air conditioner or the controller of the ventilation device. Users can select the appropriate mode according to their own needs to put the air duct component 1 in the corresponding state.

[0049] In one specific embodiment, the fresh air inlet 101, the internal circulation air inlet 102, and the exhaust air inlet 103 are all formed on the side wall of the open cylinder 141, and the exhaust air outlet 104 is formed on the bottom wall of the open cylinder 141; a total of ten through holes are provided, namely, the first hole 1511, the second hole 1512, the third hole 1513, the fourth hole 1514, the fifth hole 1515, the sixth hole 1516, the seventh hole 1517, the eighth hole 1518, the ninth hole 1519, and the tenth hole 1510, wherein the first hole 1511, the second hole 1512, the third hole 1513, the fourth hole 1514, the fifth hole 1515, and the sixth hole 1516 are formed sequentially and at intervals along the first rotation direction on the side wall of the damper cylinder 15, and the seventh hole 1517 (as shown in the figure) is formed on the side wall of the damper cylinder 15. Figure 8 Holes marked with "g" in the middle), the eighth hole 1518 (e.g.) Figure 8 Hole marked with "i" in the middle), the ninth hole 1519 (e.g.) Figure 8 Hole marked with b), tenth hole 1510 (e.g.) Figure 8 The holes marked with 'c' are sequentially spaced along the first rotation direction on the bottom wall of the damper cylinder 15. When the duct assembly 1 is in the first state, the first hole 1511 is connected to the fresh air inlet 101, the second hole 1512 is connected to the exhaust inlet 103, the sixth hole 1516 is connected to the internal circulation air inlet 102, and the seventh hole 1517 is connected to the exhaust outlet 104. When the damper cylinder 15 is driven to rotate a preset angle along the first rotation direction, the duct assembly 1 is in the second state. The aforementioned first rotation direction is... Figure 10 The clockwise direction indicated.

[0050] In this technical solution, by setting the first hole 1511 to the sixth hole 1516 at intervals along the first direction of rotation on the side wall of the damper cylinder 15, and setting the seventh hole 1517 to the tenth hole 1510 at intervals along the first direction of rotation on the bottom wall of the damper cylinder 15, the duct assembly 1 can be switched between the aforementioned first state to the eighth state by driving the rotation of the damper cylinder 15. That is, the switching of various states is achieved by sequentially opening and closing the fresh air inlet 101, the internal circulation air inlet 102, the exhaust air inlet 103 and the exhaust air outlet 104 on the open cylinder 141 with each through hole during the rotation process. Moreover, the switching of multiple states can be achieved by driving only one duct motor 16, which makes the structure particularly simple and the manufacturing cost low. Specifically, with the duct assembly 1 in the second state as the initial state, when the damper cylinder 15 is driven to rotate along the second rotation direction, the duct assembly 1 is sequentially switched to the first state, the third state, the fourth state, the fifth state, the sixth state, the seventh state, and the eighth state. The second rotation direction is opposite to the first rotation direction. For example, when the first rotation direction is clockwise, the second rotation direction is counterclockwise.

[0051] See also Figures 9 to 10As shown, in a specific embodiment, the centers of the first hole 1511, the second hole 1512, the third hole 1513, the fourth hole 1514, the fifth hole 1515, and the sixth hole 1516 are all located on a first circle coaxial with the central axis of the damper cylinder 15. The centers of the seventh hole 1517, the eighth hole 1518, the ninth hole 1519, and the tenth hole 1510 are all located on a second circle coaxial with the central axis of the damper cylinder 15. The projection of the center of the sixth hole 1516 onto the bottom wall of the damper cylinder 15 is parallel to the projection of the center of the sixth hole 1516 onto the bottom wall of the damper cylinder 15. The center of the tenth hole 1510 is located on the same radius of the bottom wall of the damper cylinder 15, meaning that the sixth hole 1516 and the tenth hole 1510 are arranged in a one-to-one correspondence. Along the first direction of rotation, with the center of the bottom wall of the damper cylinder 15 as the apex angle, the central angle formed between the center of the seventh hole 1517 and the center of the eighth hole 1518 is 60°, the central angle formed between the center of the eighth hole 1518 and the center of the ninth hole 1519 is 180°, and the central angle between the center of the ninth hole 1519 and the center of the tenth hole 1510 is... The central angle formed is 30°. The central angle formed between the projection of the center of the first hole 1511 on the bottom wall of the damper cylinder 15 and the projection of the center of the second hole 1512 on the bottom wall of the damper cylinder 15 is 60°. The central angle formed between the projection of the center of the second hole 1512 on the bottom wall of the damper cylinder 15 and the projection of the center of the third hole 1513 on the bottom wall of the damper cylinder 15 is 60°. The central angle formed between the projection of the center of the fourth hole 1514 onto the bottom wall of the damper cylinder 15 is 30°. The central angle formed between the projection of the center of the fourth hole 1514 onto the bottom wall of the damper cylinder 15 and the projection of the center of the fifth hole 1515 onto the bottom wall of the damper cylinder 15 is 90°. The central angle formed between the projection of the center of the fifth hole 1515 onto the bottom wall of the damper cylinder 15 and the projection of the center of the sixth hole 1516 onto the bottom wall of the damper cylinder 15 is 60°. Thus, assuming that the duct assembly 1 is in the second state as the control rotation origin, the duct motor 16 is controlled to rotate along the second direction (i.e., Figure 10 Rotating the damper cylinder 15 counterclockwise by 30° in the indicated direction will drive the damper cylinder 15 to rotate counterclockwise, and sequentially switch the duct assembly 1 from the second state to the first state, from the first state to the third state, from the third state to the fourth state, from the fourth state to the fifth state, from the sixth state to the seventh state, and from the seventh state to the eighth state. Of course, when it is necessary to switch from the second state to the eighth state, the duct motor 16 is controlled to rotate counterclockwise by 210° (i.e., 7*30°), and so on.

[0052] Specifically, when the damper cylinder 15 is in the initial position (i.e., the aforementioned second state), the solid area of ​​the damper cylinder 15 between the first hole 1511 and the second hole 1512 corresponds to the fresh air inlet 101, which is closed. The solid area of ​​the damper cylinder 15 between the first hole 1511 and the sixth hole 1516 corresponds to the internal circulation air inlet 102, which is closed. The solid area of ​​the damper cylinder 15 between the second hole 1512 and the third hole 1513 corresponds to the exhaust outlet 104, which is closed. The solid area of ​​the damper cylinder 15 between the eighth hole 1518 and the ninth hole 1519 corresponds to the exhaust inlet 103, which is closed. In this state, the fresh air function, the internal circulation function, and the exhaust function are all closed.

[0053] The air duct motor 16 drives the damper cylinder 15 to continue rotating counterclockwise by 30°, and is in position one (that is, the first state mentioned above). The second hole 1512 corresponds to the fresh air inlet 101, and the fresh air inlet 101 is opened. The first hole 1511 corresponds to the internal circulation air inlet 102, and the internal circulation air inlet 102 is opened. The third hole 1513 corresponds to the exhaust outlet 104, and the exhaust outlet 104 is opened. The ninth hole 1519 corresponds to the exhaust inlet 103, and the exhaust inlet 103 is opened. In this state, the fresh air function is activated, the internal circulation function is activated, and the exhaust function is activated.

[0054] The duct motor 16 drives the damper cylinder 15 to rotate counterclockwise by 60° (based on the aforementioned initial position, all rotation angles mentioned below are based on the aforementioned initial position). In position two (i.e., the aforementioned third state), the solid area of ​​the damper cylinder 15 between the second hole 1512 and the third hole 1513 corresponds to the fresh air inlet 101 (closed), the solid area of ​​the damper cylinder 15 between the first hole 1511 and the second hole 1512 corresponds to the internal circulation air inlet 102 (closed), the fourth hole 1514 corresponds to the exhaust outlet 104 (open), and the tenth hole 1510 corresponds to the exhaust inlet 103 (open). In this state, the fresh air function is off, the internal circulation function is off, and the exhaust function is on.

[0055] The duct motor 16 drives the damper cylinder 15 to rotate 90° counterclockwise, to position three (i.e., the aforementioned fourth state). The third hole 1513 corresponds to the fresh air inlet 101 (open), the second hole 1512 corresponds to the internal circulation air inlet 102 (open), the solid area of ​​the damper cylinder 15 between the fourth hole 1514 and the fifth hole 1515 corresponds to the exhaust outlet 104 (closed), and the solid area of ​​the damper cylinder 15 between the tenth hole 1510 and the seventh hole 1517 corresponds to the exhaust inlet 103 (closed). In this state, the fresh air function is on, the internal circulation function is on, and the exhaust function is off.

[0056] The duct motor 16 drives the damper cylinder 15 to rotate counterclockwise by 120°, shifting to position four (i.e., the aforementioned fifth state). The fourth hole 1514 corresponds to the fresh air inlet 101 (open), the solid area of ​​the damper cylinder 15 between the second hole 1512 and the third hole 1513 corresponds to the internal circulation air inlet 102 (closed), the solid area of ​​the damper cylinder 15 between the fourth hole 1514 and the fifth hole 1515 corresponds to the exhaust outlet 104 (closed), and the solid area of ​​the damper cylinder 15 between the tenth hole 1510 and the seventh hole 1517 corresponds to the exhaust inlet 103 (closed). In this state, the fresh air function is on, the internal circulation function is off, and the exhaust function is off.

[0057] The duct motor 16 drives the damper cylinder 15 to rotate counterclockwise by 150°, shifting to position five (also known as the aforementioned sixth state). The solid area of ​​the damper cylinder 15 between the fourth hole 1514 and the fifth hole 1515 corresponds to the fresh air inlet 101 (closed), the third hole 1513 corresponds to the internal circulation air inlet 102 (open), the fifth hole 1515 corresponds to the exhaust outlet 104 (open), and the seventh hole 1517 corresponds to the exhaust inlet 103 (open). In this state, the fresh air function is off, the internal circulation function is on, and the exhaust function is on.

[0058] The duct motor 16 drives the damper cylinder 15 to rotate 180° counterclockwise, shifting to position six (also known as the aforementioned seventh state). The solid area of ​​the damper cylinder 15 between the fourth hole 1514 and the fifth hole 1515 corresponds to the fresh air inlet 101 (closed), the fourth hole 1514 corresponds to the internal circulation air inlet 102 (open), the solid area of ​​the damper cylinder 15 between the fifth hole 1515 and the sixth hole 1516 corresponds to the exhaust outlet 104 (closed), and the solid area of ​​the damper cylinder 15 between the seventh hole 1517 and the eighth hole 1518 corresponds to the exhaust inlet 103 (closed). In this state, the fresh air function is off, the internal circulation function is on, and the exhaust function is off.

[0059] The duct motor 16 drives the damper cylinder 15 to rotate counterclockwise by 210°, setting seven (also known as the aforementioned eighth state). The fifth hole 1515 corresponds to the fresh air inlet 101 (open), the solid area of ​​the damper cylinder 15 between the fourth hole 1514 and the fifth hole 1515 corresponds to the internal circulation air inlet 102 (closed), the sixth hole 1516 corresponds to the exhaust outlet 104 (open), and the eighth hole 1518 corresponds to the exhaust inlet 103 (open). In this state, the fresh air function is on, the internal circulation function is off, and the exhaust function is on.

[0060] According to an embodiment of the present invention, an air conditioner is also provided, including the above-described ventilation device.

[0061] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A ventilation device, characterized in that, The system includes a duct assembly (1) and an air outlet assembly. The duct assembly (1) has three independent air chambers: a first air chamber (11), a second air chamber (12), and a third air chamber (13). The air outlet assembly includes a supply air assembly (21) and an exhaust air assembly (22). The supply air assembly (21) is equipped with a supply air fan (211) and a filter element (212), and the supply air assembly (211) has a first air inlet and an air outlet (217). The exhaust air assembly (22) is equipped with an exhaust air fan (221), and the exhaust air assembly (22) has a first air inlet and an air outlet (217). The first air chamber (11) has a fresh air inlet (101) controllably connected to the outdoor environment, an internal circulation air inlet (102) controllably connected to the indoor environment, and a first air duct (111) connected to the first air inlet. The second air chamber (12) has an exhaust air inlet (103) controllably connected to the indoor environment and a second air duct (112) connected to the second air inlet. The third air chamber (13) has an exhaust air outlet (104) controllably connected to the outdoor environment and a second air duct (112) connected to the exhaust air inlet. The third air duct opening (113) is connected. The air duct assembly (1) has a first state in which the fresh air inlet (101), the internal circulation air inlet (102), the exhaust air inlet (103), and the exhaust air outlet (104) are simultaneously open. The air duct assembly (1) also has a second state in which the fresh air inlet (101), the internal circulation air inlet (102), the exhaust air inlet (103), and the exhaust air outlet (104) are simultaneously closed. The air duct assembly (1) includes an air duct cylinder (14) and a sleeve that fits into the air duct cylinder (14). The damper cylinder (15) and the duct motor (16) are provided. The damper cylinder (15) has a plurality of through holes that pass through its interior and exterior and are spaced apart. The duct motor (16) can drive the damper cylinder (15) to rotate around the duct cylinder (14) to change the relative position of each of the through holes with the fresh air inlet (101), the internal circulation air inlet (102), the exhaust air inlet (103) and the exhaust air outlet (104), thereby realizing the switching of the duct assembly (1) between the first state and the second state.

2. The ventilation device according to claim 1, characterized in that, The air duct cylindrical body (14) includes an open cylinder (141) and a cover (142) covering the opening of the open cylinder (141). The first air duct opening (111), the second air duct opening (112) and the third air duct opening (113) are all formed on the cover (142). A partition plate (143) is provided in the hollow space formed between the open cylinder (141) and the cover (142). The partition plate (143) divides the hollow space into the first air cavity (11), the second air cavity (12) and the third air cavity (13).

3. The ventilation device according to claim 2, characterized in that, An annular groove (144) is formed in the side wall of the open cylinder (141). The annular groove (144) extends from the bottom end face of the open cylinder (141) toward the opening side. The side wall of the damper cylinder (15) is inserted into the annular groove (144).

4. The ventilation device according to claim 3, characterized in that, The bottom end face of the open cylinder (141) has a recessed cavity (145) that is recessed toward the opening side of the open cylinder (141), and the air duct motor (16) is housed and assembled in the recessed cavity (145).

5. The ventilation device according to claim 4, characterized in that, The free end of the output shaft of the duct motor (16) is fixedly connected to the geometric center of the bottom of the duct cylinder (14).

6. The ventilation device according to any one of claims 2 to 5, characterized in that, The air duct assembly (1) also has a third state in which the fresh air inlet (101) and the internal circulation air inlet (102) are simultaneously closed, and the exhaust air inlet (103) and the exhaust air outlet (104) are simultaneously open; or, a fourth state in which the fresh air inlet (101) and the internal circulation air inlet (102) are simultaneously open, and the exhaust air inlet (103) and the exhaust air outlet (104) are simultaneously closed; or, the fresh air inlet (101) is open, and the internal circulation air inlet (102), the exhaust air inlet (103), and the exhaust air outlet (104) are simultaneously closed. The fifth state; or, the sixth state in which the fresh air inlet (101) is closed and the internal circulation air inlet (102), exhaust air inlet (103) and exhaust air outlet (104) are opened simultaneously; or, the seventh state in which the internal circulation air inlet (102) is opened and the fresh air inlet (101), exhaust air inlet (103) and exhaust air outlet (104) are closed simultaneously; or, the eighth state in which the internal circulation air inlet (102) is closed and the fresh air inlet (101), exhaust air inlet (103) and exhaust air outlet (104) are opened simultaneously.

7. The ventilation device according to claim 6, characterized in that, The fresh air inlet (101), the internal circulation air inlet (102), and the exhaust air inlet (103) are all formed on the side wall of the open cylinder (141), and the exhaust air outlet (104) is formed on the bottom wall of the open cylinder (141). Ten through holes are provided, namely, the first hole (1511), the second hole (1512), the third hole (1513), the fourth hole (1514), the fifth hole (1515), the sixth hole (1516), the seventh hole (1517), the eighth hole (1518), the ninth hole (1519), and the tenth hole (1510). The first hole (1511), the second hole (1512), the third hole (1513), the fourth hole (1514), the fifth hole (1515), and the sixth hole (1516) are formed sequentially and at intervals along the first rotation direction. On the side wall of the damper cylinder (15), the seventh hole (1517), the eighth hole (1518), the ninth hole (1519), and the tenth hole (1510) are sequentially spaced along the first rotation direction on the bottom wall of the damper cylinder (15). When the air duct assembly (1) is in the first state, the first hole (1511) is connected to the fresh air inlet (101), the second hole (1512) is connected to the exhaust air inlet (103), the sixth hole (1516) is connected to the internal circulation air inlet (102), and the seventh hole (1517) is connected to the exhaust air outlet (104). When the damper cylinder (15) is driven to rotate a preset angle along the first rotation direction, the air duct assembly (1) is in the second state.

8. The ventilation device according to claim 7, characterized in that, With the duct assembly (1) in the second state as the initial state, when the damper cylinder (15) is driven to rotate along the second rotation direction, the duct assembly (1) is sequentially switched to the first state, the third state, the fourth state, the fifth state, the sixth state, the seventh state and the eighth state, and the second rotation direction is opposite to the first rotation direction.

9. The ventilation device according to claim 8, characterized in that, The centers of the first hole (1511), the second hole (1512), the third hole (1513), the fourth hole (1514), the fifth hole (1515), and the sixth hole (1516) are all located on a first circle coaxial with the central axis of the damper cylinder (15). The centers of the seventh hole (1517), the eighth hole (1518), the ninth hole (1519), and the tenth hole (1510) are all located on a second circle coaxial with the central axis of the damper cylinder (15). The center of the sixth hole (1516) is located on the bottom wall of the damper cylinder (15). The center of the shadow and the tenth hole (1510) are on the same radius of the bottom wall of the damper cylinder (15), along the first direction of rotation and with the center of the bottom wall of the damper cylinder (15) as the apex angle, the central angle formed between the center of the seventh hole (1517) and the center of the eighth hole (1518) is 60°, the central angle formed between the center of the eighth hole (1518) and the center of the ninth hole (1519) is 180°, the central angle formed between the center of the ninth hole (1519) and the center of the tenth hole (1510) is 30°, the first hole ( The central angle formed between the projection of the center of the second hole (1511) on the bottom wall of the damper cylinder (15) and the projection of the center of the third hole (1512) on the bottom wall of the damper cylinder (15) is 60°. The central angle formed between the projection of the center of the second hole (1512) on the bottom wall of the damper cylinder (15) and the projection of the center of the third hole (1513) on the bottom wall of the damper cylinder (15) is 60°. The central angle formed between the projection of the center of the third hole (1513) on the bottom wall of the damper cylinder (15) and the projection of the center of the fourth hole (1511) on the bottom wall of the damper cylinder (1512) is 60°. The central angle formed between the projection of the center of the fourth hole (1514) onto the bottom wall of the damper cylinder (15) is 30°. The central angle formed between the projection of the center of the fourth hole (1514) onto the bottom wall of the damper cylinder (15) and the projection of the center of the fifth hole (1515) onto the bottom wall of the damper cylinder (15) is 90°. The central angle formed between the projection of the center of the fifth hole (1515) onto the bottom wall of the damper cylinder (15) and the projection of the center of the sixth hole (1516) onto the bottom wall of the damper cylinder (15) is 60°.

10. An air conditioner, characterized in that, The ventilation device includes any one of claims 1 to 9.

Images