Wind shield device, fresh air air conditioner and control method

Abstract

The present invention provides a windshield device, a fresh air air conditioner and a control method, the windshield device includes a connecting pipe, a support plate and multiple windshields; one end of the connecting pipe is connected to the first ventilation port, and the other end of the connecting pipe is provided with a support plate and is connected to the second ventilation port of the support plate; each windshield includes a first end and a second end, the first end is away from the second ventilation port and can slide along the plate surface of the support plate; when the multiple windshields are in the first working state, the second ends of the multiple windshields are separated from each other, so that the second ventilation port is in an open state; when the multiple windshields are in the second working state, the second ends of the multiple windshields are spliced ​​together, so that the second ventilation port is in a closed state; the windshield movement is stable, the ventilation volume control accuracy is high, and the ventilation volume can be adjusted steplessly; the operation mode and fresh air volume of the fresh air air conditioner meet the different needs of users, and ensure that the fresh air air conditioner can be stable in a suitable temperature range and humidity range during long-term operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of air treatment equipment, and in particular relates to a windshield device, a fresh air air conditioner and a control method. Background Art

[0002] Windshields are crucial components of ventilation systems, opening and closing vents and adjusting ventilation volume. Existing technologies employ windshields at the vents of ventilation systems. Controlling the windshield's movement controls the vent opening, thereby adjusting ventilation volume. However, these windshields are structurally inefficient, occupying a large space and exhibiting unstable movement, resulting in a limited ventilation volume adjustment range and low precision. Furthermore, they struggle to achieve stepless adjustment to meet varying needs, resulting in a poor user experience. Summary of the Invention

[0003] In view of this, the present invention provides a windshield device, a fresh air air conditioner and a control method to solve the problems in the prior art such as the unreasonable structural design of the windshield device resulting in a limited ventilation volume adjustment range, low adjustment accuracy and difficulty in meeting different needs.

[0004] The present invention provides a windshield device for a ventilation device, wherein the ventilation device is formed with a first vent, and the windshield device comprises:

[0005] a connecting pipe, one end of which is disposed at the first vent and communicated with the first vent;

[0006] a support plate, the support plate being disposed at the other end of the connecting pipe and having a second vent formed thereon, the second vent being communicated with the other end of the connecting pipe;

[0007] A windshield, the windshield being movably disposed on a side of the support plate away from the connecting pipe, the windshield comprising a plurality of windshields, each windshield comprising a first end and a second end; the first end being away from the second vent and slidable along the surface of the support plate, the second end being disposed opposite the first end and slidable along the first end; the plurality of windshields having a first working state and a second working state;

[0008] When the plurality of wind shields are in the first working state, the second ends of the plurality of wind shields are away from the second vent and separated from each other, so that the second vent is in an open state; the opening size of the second vent can be adjusted by adjusting the sliding displacement of the plurality of wind shields;

[0009] When the plurality of wind shields are in the second working state, the second ends of the plurality of wind shields are close to the second vent and are spliced ​​together, so that the second vent is in a closed state.

[0010] Further optionally, the support plate is formed with a plurality of first sliding grooves, the number of the first sliding grooves being the same as the number of the windshield plates; each windshield plate is rotatably provided with a first sliding post at the first end portion, the first sliding post being embedded in the corresponding first sliding groove;

[0011] When the first sliding column slides along the corresponding first sliding groove, the second ends of the plurality of wind shields move away from or approach the second vent.

[0012] Further optionally, the support plate is formed with a plurality of second sliding posts, the number of the second sliding posts is the same as the number of the first sliding grooves, and the second sliding posts are arranged close to the first sliding grooves; each of the windshield plates is formed with a second sliding groove at the first end portion, and the second sliding post is embedded in the second sliding groove;

[0013] When the first sliding post slides along the corresponding first sliding groove, the second sliding groove slides around the corresponding second sliding post.

[0014] Further optionally, the first slide groove is an arc-shaped structure, and a plurality of the first slide grooves are arranged along the circumference of the connecting pipe; the second slide post is located inside the first slide groove, and the extension direction of the second slide post is perpendicular to the plate surface of the support plate;

[0015] Multiple windshields are arranged along the circumference of the connecting pipe, and the extension direction of the first sliding column is perpendicular to the board surface of the windshield; the second sliding groove is closer to the second end relative to the first sliding column, and the extension direction of the second sliding groove is consistent with the extension direction of the windshield.

[0016] Further optionally, the windshield device further includes a bracket, a transmission mechanism, and a drive motor, the support plate is disposed on the bracket, and a mounting cavity is formed between the support plate and the bracket; the connecting tube is disposed on the bracket, with one end of the connecting tube away from the support plate and the other end of the connecting tube located in the mounting cavity; the bracket further includes a mounting position, which is disposed opposite to the mounting cavity;

[0017] The transmission mechanism includes a driving member and a driven member in transmission connection with the driving member; the driving member is arranged at the installation position and is drivingly connected to the drive motor; the driven member is rotatably arranged in the installation cavity and is sleeved on the outside of the connecting pipe;

[0018] The driven member is fixedly connected to the plurality of first sliding posts; the active member rotates, so that the driven member drives the first sliding posts to slide along the first sliding grooves.

[0019] Further optionally, a plurality of limiting posts and a third sliding groove are formed on a side of the bracket close to the support plate; the support plate is formed with a plurality of limiting grooves; the limiting posts cooperate with the limiting grooves to connect the bracket and the support plate to form a squirrel cage structure, and the squirrel cage structure encloses the installation cavity;

[0020] A third sliding post is formed on one side of the follower close to the bracket, and the third sliding post cooperates with the third sliding groove to enable the follower to rotate relative to the bracket.

[0021] The present invention also provides a fresh air air conditioner, which includes an indoor unit, a fresh air device and a windshield device as described in any one of the above items; the fresh air device is arranged indoors and includes a fresh air duct, the windshield device is arranged at the air inlet end of the fresh air duct, the air outlet end of the connecting pipe is connected to the air inlet end of the fresh air duct, and the air inlet end of the connecting pipe is connected to the second ventilation port; the windshield is arranged at the second ventilation port.

[0022] Further optionally, the fresh air air conditioner further comprises an indoor unit, the indoor unit comprising an indoor fan and an indoor heat exchanger; the fresh air device forms a fresh air duct, the air inlet end of the fresh air duct is connected to the air outlet end of the fresh air pipe, and a fresh air fan and a humidification module are provided in the fresh air duct, the humidification module is used to humidify the fresh air entering the fresh air duct;

[0023] The fresh air air conditioner includes a heating mode, a cooling mode, a fresh air mode, a humidification mode and a dehumidification mode; when the fresh air air conditioner is in the heating mode, the indoor fan operates to raise the indoor air to a preset temperature after heat exchange with the indoor heat exchanger; when the fresh air air conditioner is in the cooling mode, the indoor fan operates to lower the indoor air to a preset temperature after heat exchange with the indoor heat exchanger; when the fresh air air conditioner is in the fresh air mode, the fresh air fan operates to allow outdoor fresh air to enter the room through the fresh air pipe and the fresh air duct; when the fresh air air conditioner is in the humidification mode, the humidification module operates to humidify the fresh air in the fresh air duct; when the fresh air air conditioner is in the dehumidification mode, the indoor fan operates to lower the indoor air to a preset humidity after heat exchange with the indoor heat exchanger.

[0024] The present invention also provides a control method for the above-mentioned fresh air air conditioner, the control method comprising:

[0025] S1. Determining a target operating mode of the fresh air air conditioner based on the current state of the indoor air and the relationship between the moisture content of the indoor air and the outdoor air;

[0026] S2. Control the fresh air air conditioner to operate in a target operation mode.

[0027] Further optionally, the method for determining the current state of the indoor air includes:

[0028] Get the temperature and humidity of indoor air;

[0029] Determining whether the temperature of the indoor air is within a preset temperature range and whether the humidity of the indoor air is within a preset humidity range;

[0030] The current state of the indoor air is determined based on the determination results of whether the temperature of the indoor air is within a preset temperature range and whether the humidity of the indoor air is within a preset humidity range.

[0031] Further optionally, the S1 includes:

[0032] When the temperature of the indoor air is greater than a maximum threshold value of a preset temperature range and the humidity of the indoor air is greater than a maximum threshold value of a preset humidity range, the indoor air is in a first attribute state;

[0033] Determine that the target operating mode of the fresh air air conditioner is cooling mode.

[0034] Further optionally, the S1 further includes:

[0035] When the temperature of the indoor air is greater than a maximum threshold value of a preset temperature interval and the humidity of the indoor air is less than a minimum threshold value of a preset humidity interval, the indoor air is in a second attribute state;

[0036] When the humidity of the indoor air is less than that of the outdoor air, determining the target operation mode of the fresh air air conditioner to be the cooling mode and the fresh air mode; calculating the target fresh air volume in the fresh air mode according to the return air parameters of the indoor unit and the outdoor air parameters; and / or,

[0037] When the humidity content of the indoor air is greater than that of the outdoor air, determining the target operating mode of the fresh air air conditioner to be a cooling mode, a fresh air mode, and a humidification mode; and calculating the target fresh air volume in the fresh air mode according to the fresh air parameters in the fresh air duct and the return air parameters of the indoor unit;

[0038] Among them, the return air parameters of the indoor unit include at least return air temperature, return air humidity and return air volume, the outdoor air parameters include at least outdoor air temperature and outdoor air humidity, and the fresh air parameters in the fresh air duct include at least fresh air temperature and fresh air humidity.

[0039] Further optionally, the S1 further includes:

[0040] When the temperature of the indoor air is greater than the maximum threshold of the preset temperature range and the humidity of the indoor air is within the preset humidity range, the indoor air is in the third property state;

[0041] When the difference between the indoor air temperature and the preset temperature is greater than the preset temperature difference, determining that the target operation mode of the fresh air air conditioner is a cooling mode; and / or,

[0042] When the difference between the indoor air temperature and the preset temperature is less than or equal to the preset temperature difference, the target operation mode of the fresh air air conditioner is determined to be the cooling mode and the fresh air mode.

[0043] Further optionally, the S1 further includes:

[0044] When the temperature of the indoor air is lower than the minimum threshold of the preset temperature range and the humidity of the indoor air is higher than the maximum threshold of the preset humidity range, the indoor air is in the fourth attribute state;

[0045] Determine that the target operating mode of the fresh air air conditioner is a heating mode.

[0046] Further optionally, the S1 further includes:

[0047] When the temperature of the indoor air is lower than the minimum threshold of the preset temperature range and the humidity of the indoor air is lower than the minimum threshold of the preset humidity range, the indoor air is in the fifth attribute state;

[0048] When the humidity of the indoor air is less than the humidity of the outdoor air, determining the target operation mode of the fresh air air conditioner to be the heating mode and the fresh air mode; and / or,

[0049] When the humidity content of the indoor air is greater than the humidity content of the outdoor air, the target operation mode of the fresh air air conditioner is determined to be a heating mode, a fresh air mode and a humidification mode.

[0050] Further optionally, the S1 further includes:

[0051] When the temperature of the indoor air is lower than the minimum threshold of the preset temperature range and the humidity of the indoor air is within the preset humidity range, the indoor air is in the sixth attribute state;

[0052] When the difference between the indoor air temperature and the preset temperature is greater than the preset temperature difference, determining that the target operation mode of the fresh air air conditioner is a heating mode; and / or,

[0053] When the difference between the indoor air temperature and the preset temperature is less than or equal to the preset temperature difference, the target operation mode of the fresh air air conditioner is determined to be the heating mode and the fresh air mode.

[0054] Further optionally, the S1 further includes:

[0055] When the temperature of the indoor air is within the preset temperature range and the humidity of the indoor air is greater than the maximum threshold of the preset humidity range, the indoor air is in the seventh attribute state;

[0056] Determine that the target operating mode of the fresh air air conditioner is a dehumidification mode.

[0057] Further optionally, the S1 further includes:

[0058] When the temperature of the indoor air is within the preset temperature range and the humidity of the indoor air is less than the minimum threshold of the preset humidity range, the indoor air is in the eighth attribute state;

[0059] When the humidity content of the indoor air is less than the humidity content of the outdoor air, determining that the target operation mode of the fresh air air conditioner is the fresh air mode; and / or,

[0060] When the humidity content of the indoor air is greater than the humidity content of the outdoor air, the target operation mode of the fresh air air conditioner is determined to be the fresh air mode and the humidification mode.

[0061] Further optionally, the S1 further includes:

[0062] When the temperature of the indoor air is within a preset temperature range and the humidity of the indoor air is within a preset humidity range, the indoor air is in a ninth attribute state;

[0063] Determine that the target operating mode of the fresh air air conditioner is the fresh air mode.

[0064] Further optionally, the S1 further includes:

[0065] When the target operation mode includes a fresh air mode, the target fresh air volume in the fresh air mode can be adjusted according to the target rotation speed of the indoor fan and the opening degree of the second vent.

[0066] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0067] (1) One end of the connecting pipe is connected to the first vent, and the other end of the connecting pipe is provided with a support plate and is connected to the second vent; when the plurality of wind shields are in the first working state, the second ends of the plurality of wind shields are separated from each other, so that the second vent is in an open state; by adjusting the sliding displacement of the plurality of wind shields, the opening size of the second vent can be adjusted, and thus the ventilation volume of the second vent can be adjusted; when the plurality of wind shields are in the second working state, the second ends of the plurality of wind shields are spliced ​​together, so that the second vent is in a closed state; the structure is simple and the space occupied is small, the ventilation volume adjustment range is large and the adjustment accuracy is high, so that the ventilation volume can meet different needs, thereby improving the movement efficiency of the ventilation equipment;

[0068] (2) The first slide column cooperates with the first slide groove, and the second slide column cooperates with the second slide groove, so that each windshield can slide relative to the support plate and continuously and stably open or close the second vent, thereby realizing stepless adjustment of the ventilation volume; the transmission mechanism is a gear mechanism, the movement of multiple windshields is stable, and the control accuracy of the ventilation volume is high;

[0069] (3) Determine the current state of the indoor air based on the temperature and humidity of the indoor air, and determine the target operating mode and target fresh air volume based on the moisture content relationship between the indoor air and the outdoor air; divide the state of the indoor air into nine types using a surface division method, which is more reasonable and comprehensive, and achieves precise control; make the operating mode and fresh air volume of the fresh air air conditioner meet the different needs of users, and the temperature and humidity of the indoor air can be adjusted to ensure that the fresh air air conditioner can be stable in the appropriate temperature and humidity range for a long time, and solve the problem of unsuitable temperature and humidity after the fresh air air conditioner is in operation for a long time; circulate the indoor air and outdoor air to keep the indoor air fresh; reduce the number of times the fresh air air conditioner is turned on and off, and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0071] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0072] Figure 1 and Figure 2 A schematic structural diagram of an embodiment of a windshield device provided by the present invention;

[0073] Figure 3 A schematic diagram of the assembly structure of the bracket and connecting pipe embodiment provided by the present invention;

[0074] Figure 4 A schematic structural diagram of an embodiment of a follower provided by the present invention;

[0075] Figure 5 A schematic diagram of an embodiment of a control method for a fresh air air conditioner provided by the present invention;

[0076] In the picture:

[0077] 11 - fresh air duct; 12 - bracket; 121 - limiting column; 122 - third slide; 13 - connecting pipe; 14 - support plate; 141 - first slide; 142 - second slide; 143 - limiting slot; 151 - installation cavity; 152 - installation position;

[0078] 21 - first windshield; 22 - second windshield; 23 - third windshield; 241 - first end; 242 - second end; 243 - first sliding post; 244 - second sliding slot;

[0079] 31 - driving member; 32 - driven member; 321 - third sliding column; 322 - through hole; 33 - driving motor. DETAILED DESCRIPTION

[0080] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0081] The terms used in the embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a," "the," and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise. "A plurality" generally includes at least two, but does not exclude the inclusion of at least one.

[0082] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0083] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0084] In existing technologies, windshields are installed at the vents of ventilation equipment. By controlling the movement of the windshields, the opening size of the vents can be controlled, thereby adjusting the ventilation volume. However, the windshields are not structurally designed properly, occupy a large space, and have unstable movement, resulting in a limited ventilation volume adjustment range and low adjustment accuracy. In addition, it is difficult to achieve stepless adjustment according to different needs, resulting in a poor user experience.

[0085] The present invention creatively provides a windshield device for use in ventilation equipment, wherein the ventilation equipment is formed with a first vent, and the windshield device includes a connecting pipe, a support plate, and a plurality of windshields; one end of the connecting pipe is arranged at the first vent and communicates with the first vent; the support plate is arranged at the other end of the connecting pipe, and the second vent of the support plate is communicated with the other end of the connecting pipe; the windshield is arranged on a side of the support plate away from the connecting pipe; each windshield includes a first end and a second end; the first end is away from the second vent and can slide along the plate surface of the support plate, and the second end is arranged opposite to the first end and can slide with the first end;

[0086] When multiple wind shields are in the first working state, the second ends of the multiple wind shields are separated from each other, so that the second vents are in an open state; when multiple wind shields are in the second working state, the second ends of the multiple wind shields are spliced ​​together, so that the second vents are in a closed state; the structure is simple and occupies little space, the ventilation volume adjustment range is large and the adjustment accuracy is high, so that the ventilation volume can meet different needs and improve the movement efficiency of the ventilation equipment.

[0087] <Wind deflector device>

[0088] like Figure 1 and Figure 2 As shown, this embodiment provides a windshield device for a ventilation device, wherein the ventilation device is formed with a first vent. Preferably, the ventilation device is a fresh air air conditioner; the windshield device includes:

[0089] a connecting pipe 13, one end of which is disposed at the first vent and communicates with the first vent;

[0090] A support plate 14 is provided at the other end of the connecting pipe 13 and is formed with a second vent, the second vent being in communication with the other end of the connecting pipe 13;

[0091] A windshield is movably disposed on a side of the support plate 14 away from the connecting pipe 13. The windshield includes a plurality of windshields, each including a first end 241 and a second end 242. The first end 241 is away from the second vent and can slide along the surface of the support plate 14. The second end 242 is disposed opposite the first end 241 and can slide with the first end 241. The plurality of windshields has a first working state and a second working state.

[0092] When the plurality of wind shields are in the first working state, the second ends 242 of the plurality of wind shields are away from the second vent and separated from each other, so that the second vent is in an open state; by adjusting the degree of separation between the second ends 242 of the plurality of wind shields, the opening size of the second vent can be adjusted, and thus the ventilation volume can be adjusted; when the plurality of wind shields are in the second working state, the second ends 242 of the plurality of wind shields are close to the second vent and spliced ​​together, so that the second vent is in a closed state;

[0093] Specifically, the connecting pipe 13 is a straight pipe, the supporting plate 14 is a circular structure, and the second vent is a circular hole; the plurality of wind shields include a first wind shield 21, a second wind shield 22, and a third wind shield 23. The three wind shields have the same structure and are all knife-shaped structures. The width of the first end of each wind shield is smaller than the width of the second end; the second end of each wind shield includes an arc segment, a first straight segment, and a second straight segment; the second end 242 of the first wind shield 21, the second end 242 of the second wind shield 22, and the second end 242 of the third wind shield 23 are close to each other. When the second vent is spliced ​​together, the arc segments of the three wind shields are on the circumference of the same circle, the first straight segment of the first wind shield 21 is close to the second straight segment of the second wind shield 22, the first straight segment of the second wind shield 22 is close to the second straight segment of the third wind shield 23, the first straight segment of the third wind shield 23 is close to the second straight segment of the first wind shield 21, and the three first straight segments are all located on the radius of the circle, and the three second straight segments are all located on the radius of the circle; the layout is beautiful, and the second vent is closed tightly.

[0094] like Figure 2 As shown, the support plate 14 is formed with a plurality of first sliding grooves 141, and the number of the first sliding grooves 141 is the same as the number of the windshields; each windshield is rotatably provided with a first sliding post 243 at the first end 241, and the first sliding post 243 is embedded in the corresponding first sliding groove 141;

[0095] When the first sliding post 243 slides along the corresponding first sliding groove 141 , the second ends 242 of the plurality of windshields move away from or closer to the second vent;

[0096] Specifically, the first slide groove 141 includes three and all of them are arc-shaped structures. The three first slide grooves 141 are concentrically arranged with the second vents and the three first slide grooves 141 are arranged along the circumference of the connecting tube 13. The three first slide grooves 141 are on the same circle; multiple wind shields are arranged along the circumference of the connecting tube 13, and the extension direction of the first slide column 243 is perpendicular to the plate surface of the wind shield, and the first slide column 243 extends through the first slide groove 141 to the bottom of the support plate 14; the three first slide columns 243 correspond one-to-one to the three first slide grooves 141; when the first slide column 243 is controlled to slide along the first slide groove 141, the first end portions 241 of the three wind shields slide.

[0097] Furthermore, the support plate 14 is formed with a plurality of second slide posts 142. The number of the second slide posts 142 is the same as the number of the first slide slots 141. The second slide posts 142 are arranged close to the first slide slots 141, are located radially inward of the first slide slots 141, and extend in a direction perpendicular to the plate surface of the support plate 14. Each windshield plate is formed with a second slide slot 244 at the first end 241. The second slide slot 244 is a linear structure, and the second slide post 142 is embedded in the second slide slot 244. The second slide slot 244 is closer to the second end 242 than the first slide post 243, and the extension direction of the second slide slot 244 is consistent with the extension direction of the windshield plate.

[0098] When the first slide column 243 slides along the corresponding first slide groove 141, the second slide groove 244 slides around the second slide column 142; the first slide column 243 cooperates with the first slide groove 141, and the second slide column 142 cooperates with the second slide groove 244, so that each wind shield can slide relative to the support plate 14 and continuously and stably open or close the second vent, thereby realizing stepless adjustment of the ventilation volume.

[0099] like Figure 2 、 Figure 3 and Figure 4 As shown, the windshield device also includes a bracket 12, a transmission mechanism and a drive motor 33, the support plate 14 is arranged on the bracket 12 and a mounting cavity 151 is formed between the support plate 14 and the bracket 12; the connecting pipe 13 is arranged on the bracket 12, and one end of the connecting pipe 13 is away from the support plate 14, and the other end of the connecting pipe 13 is located in the mounting cavity 151, and the connecting pipe 13 can be integrally formed with the bracket 12 or formed independently; the bracket 12 also forms a mounting position 152, and the mounting position 152 is arranged opposite to the mounting cavity 151; specifically, the bracket 12 includes a first bracket plate and a second bracket plate, the second bracket plate is arranged in the same plane and connected to the first bracket plate; the first bracket plate is arranged parallel to and coaxially with the support plate 14, and the first bracket plate and the support plate 14 form a mounting cavity 151; the second bracket plate forms a mounting position 152, the top of the second bracket plate is used to install the active part 31, and the bottom of the second bracket plate is used to install the drive motor 33; the first bracket plate and the second bracket plate are both circular structures and form an 8-shaped structure;

[0100] The transmission mechanism includes a driving member 31 and a driven member 32 in transmission connection with the driving member 31. The driving member 31 is disposed at the mounting position 152 and is drivingly connected to the drive motor 33. The driven member 32 is rotatably disposed within the mounting cavity 151 and is sleeved on the outside of the connecting tube 13. The driven member 32 is formed with a through hole 322, through which one end of the connecting tube 13 passes to communicate with the second vent of the support plate 14.

[0101] The driven member 32 is fixedly connected to the plurality of first slide posts 243; the active member 31 rotates, so that the driven member 32 drives the first slide posts 243 to slide along the first slide groove 141;

[0102] Specifically, the transmission mechanism is a gear mechanism, the active member 31 and the driven member 32 are both gears, and the active member 31 is externally meshed with the driven member 32; the three first slide posts 243 are arranged along the circumference of the driven member 32 and are connected to the driven member 32; when the active member 31 rotates, the driven member 32 drives the three first slide posts 243 to slide along the corresponding first slide groove 141, and the second slide post 142 slides along the corresponding second slide groove 244, and then the second end portions 242 of the three windshields open or close the second vents; according to the calculated fresh air volume, the drive motor 33 is controlled to rotate to a corresponding angle, and under the action of the transmission mechanism, the three windshields slide to open the second vents to a corresponding opening size.

[0103] Furthermore, a plurality of limiting posts 121 and a third sliding groove 122 are formed on one side of the bracket 12 close to the support plate 14; the plurality of limiting posts 121 have the same structure and are arranged alternately along the circumference of a circle; the support plate 14 is formed with a plurality of limiting grooves 143, the plurality of limiting grooves 143 have the same structure and are arranged alternately along the circumference of a circle; the limiting posts 121 cooperate with the limiting grooves 143 to connect the bracket 12 and the support plate 14 to form a squirrel cage structure, which encloses the mounting cavity 151; each of the limiting posts 121 and the limiting grooves 143 includes four, and the cross-sections of the limiting posts 121 and the limiting grooves 143 are four trapezoidal structures;

[0104] A third slide post 321 is formed on the side of the follower 32 close to the bracket 12. The third slide post 321 cooperates with the third slide groove 122 to allow the follower 32 to rotate relative to the bracket 12. The third slide post 321 includes a plurality of third slide posts 321, which are arranged alternately along the circumference of a circle.

[0105] The transmission mechanism is a gear mechanism, the multiple wind deflectors move stably, and the ventilation volume is controlled with high precision.

[0106] <Fresh air conditioning>

[0107] This embodiment also provides a fresh air air conditioner, which includes an indoor unit, a fresh air device and a windshield device as described in any one of the above items; the fresh air device is arranged indoors and includes a fresh air duct 11, the air inlet end of the fresh air duct 11 is located outdoors, and the air outlet end of the fresh air duct 11 is located indoors; the windshield device is arranged at the air inlet end of the fresh air duct 11, the air outlet end of the connecting pipe 13 is connected to the air inlet end of the fresh air duct 11, and the air inlet end of the connecting pipe 13 is connected to the second vent; the windshield is arranged at the second vent.

[0108] Furthermore, the indoor unit includes an indoor fan and an outdoor heat exchanger; the fresh air device forms a fresh air duct, the air inlet end of the fresh air duct is connected to the air outlet end of the fresh air pipe 11, and a fresh air fan and a humidification module are provided in the fresh air duct, and the humidification module is used to humidify the fresh air entering the fresh air duct, that is, to humidify the fresh air by adding water; under the action of the fresh air fan, the outdoor fresh air enters the room through the fresh air pipe 11 and the fresh air duct;

[0109] The fresh air air conditioner includes heating mode, cooling mode, fresh air mode, humidification mode and dehumidification mode; when the fresh air air conditioner is in heating mode, the indoor fan runs to raise the indoor air to a preset temperature after heat exchange with the indoor heat exchanger; when the fresh air air conditioner is in cooling mode, the indoor fan runs to lower the indoor air to a preset temperature after heat exchange with the indoor heat exchanger; when the fresh air air conditioner is in fresh air mode, the fresh air fan runs to allow outdoor fresh air to enter the room through the fresh air pipe 11 and the fresh air duct; when the fresh air air conditioner is in humidification mode, the humidification module runs to humidify the fresh air in the fresh air duct; when the fresh air air conditioner is in dehumidification mode, the indoor fan runs to lower the indoor air to a preset humidity after heat exchange with the indoor heat exchanger, and the pipe temperature of the indoor heat exchanger is always lower than the dew point temperature of the air, so that the indoor air is condensed and dehumidified, and the impact on the indoor air temperature is as small as possible.

[0110] <Control Method>

[0111] like Figure 5 As shown, this embodiment also provides a control method for the above-mentioned fresh air air conditioner, the control method comprising:

[0112] S0. determining the current state of the indoor air according to the temperature and humidity of the indoor air;

[0113] S1. Determine a target operating mode and target fresh air volume for the fresh air air conditioner based on the current state of the indoor air and the relationship between the moisture content of the indoor air and the outdoor air;

[0114] S2. Control the fresh air air conditioner to operate in a target operating mode and at a target fresh air volume.

[0115] Furthermore, S0 includes:

[0116] Get the temperature and humidity of indoor air;

[0117] Determining whether the temperature of the indoor air is within a preset temperature range and whether the humidity of the indoor air is within a preset humidity range;

[0118] The current state of the indoor air is determined based on the determination results of whether the temperature of the indoor air is within a preset temperature range and whether the humidity of the indoor air is within a preset humidity range.

[0119] Furthermore, S1 includes:

[0120] When the temperature of the indoor air is greater than a maximum threshold value of a preset temperature range and the humidity of the indoor air is greater than a maximum threshold value of a preset humidity range, the indoor air is in a first attribute state;

[0121] When the temperature of the indoor air is greater than a maximum threshold value of a preset temperature interval and the humidity of the indoor air is less than a minimum threshold value of a preset humidity interval, the indoor air is in a second attribute state;

[0122] When the temperature of the indoor air is greater than the maximum threshold of the preset temperature range and the humidity of the indoor air is within the preset humidity range, the indoor air is in the third property state;

[0123] Correspondingly, when the indoor air is in the first attribute state, the target operation mode of the fresh air air conditioner is the cooling mode and the target fresh air volume is zero;

[0124] When the indoor air is in the second property state and the humidity of the indoor air is less than that of the outdoor air, the target operation mode of the fresh air air conditioner is cooling mode and fresh air mode; the target fresh air volume is calculated based on the return air temperature, return air humidity and return air volume of the indoor unit and the temperature and humidity of the outdoor air;

[0125] When the indoor air is in the second property state and the humidity of the indoor air is greater than that of the outdoor air, the target operating modes of the fresh air air conditioner are cooling mode, fresh air mode and humidification mode; the target fresh air volume is calculated based on the fresh air temperature and humidity in the fresh air duct and the return air temperature, return air humidity and return air volume of the indoor unit;

[0126] When the indoor air is in the third attribute state and the difference between the indoor air and the preset temperature is greater than the preset temperature difference, the target operation mode of the fresh air air conditioner is cooling mode; when the indoor air is in the third attribute state and the difference between the indoor air and the preset temperature is less than or equal to the preset temperature difference, the target operation mode of the fresh air air conditioner is cooling mode and fresh air mode; specifically, when the difference between the indoor air and the preset temperature is greater than 1°C, cooling is dominant, the fresh air fan is not turned on, and the fresh air air conditioner operates in the user-set state; when the difference between the indoor air and the preset temperature is less than or equal to 1°C, comfort is dominant, and the fresh air device and the indoor unit operate simultaneously.

[0127] Determine the target speed of the indoor fan and the opening of the second vent according to the target fresh air volume;

[0128] Specifically, the moisture content Do = Domax*Ro, Dmax is the saturated moisture content at the corresponding temperature, and Ro is the air humidity; when the fresh air air conditioner is running, the temperature and humidity of the indoor air and the temperature and humidity of the outdoor air are detected again at every certain time interval t, until the detection result is determined not to be the current state, and the corresponding state operation mode is switched.

[0129] Furthermore, S1 also includes:

[0130] When the temperature of the indoor air is lower than the minimum threshold of the preset temperature range and the humidity of the indoor air is higher than the maximum threshold of the preset humidity range, the indoor air is in the fourth attribute state;

[0131] When the temperature of the indoor air is lower than the minimum threshold of the preset temperature range and the humidity of the indoor air is lower than the minimum threshold of the preset humidity range, the indoor air is in the fifth attribute state;

[0132] When the temperature of the indoor air is lower than the minimum threshold of the preset temperature range and the humidity of the indoor air is within the preset humidity range, the indoor air is in the sixth attribute state.

[0133] Correspondingly, when the indoor air is in the fourth attribute state, the target operation mode of the fresh air air conditioner is the heating mode and the target fresh air volume is zero;

[0134] When the indoor air is in the fifth property state and the humidity of the indoor air is less than that of the outdoor air, the target operating mode of the fresh air air conditioner is the heating mode and the fresh air mode; when the indoor air is in the fifth property state and the humidity of the indoor air is greater than that of the outdoor air, the target operating mode of the fresh air air conditioner is the heating mode, the fresh air mode and the humidification mode;

[0135] When the indoor air is in the sixth attribute state and the difference between the indoor air and the preset temperature is greater than the preset temperature difference, the target operation mode of the fresh air air conditioner is the heating mode; when the indoor air is in the sixth attribute state and the difference between the indoor air and the preset temperature is less than or equal to the preset temperature difference, the target operation mode of the fresh air air conditioner is the heating mode and the fresh air mode; specifically, when the difference between the indoor air and the preset temperature is greater than 1°C, cooling is dominant, the fresh air fan is not turned on, and the fresh air air conditioner operates in the user-set state; when the difference between the indoor air and the preset temperature is less than or equal to 1°C, comfort is dominant, and the fresh air device and the indoor unit operate simultaneously.

[0136] Determine the target speed of the fresh air fan and the opening of the second vent according to the target fresh air volume;

[0137] Specifically, the fresh air air conditioner is running, and the temperature and humidity of the indoor air and the temperature and humidity of the outdoor air are detected again at every certain time interval t, until the detection result is determined to be not the current state, and the corresponding state operation mode is switched.

[0138] Furthermore, S1 also includes:

[0139] When the temperature of the indoor air is within the preset temperature range and the humidity of the indoor air is greater than the maximum threshold of the preset humidity range, the indoor air is in the seventh attribute state;

[0140] When the temperature of the indoor air is within the preset temperature range and the humidity of the indoor air is less than the minimum threshold of the preset humidity range, the indoor air is in the eighth attribute state;

[0141] When the temperature of the indoor air is within a preset temperature range and the humidity of the indoor air is within a preset humidity range, the indoor air is in a ninth attribute state;

[0142] Correspondingly, when the indoor air is in the seventh attribute state, the target operation mode of the fresh air air conditioner is the dehumidification mode and the target fresh air volume is zero;

[0143] When the indoor air is in the eighth attribute state and the humidity of the indoor air is less than that of the outdoor air, the target operation mode of the fresh air air conditioner is the fresh air mode; when the indoor air is in the eighth attribute state and the humidity of the indoor air is greater than that of the outdoor air, the target operation mode of the fresh air air conditioner is the fresh air mode and the humidification mode;

[0144] When the indoor air is in the ninth attribute state, the target operation mode of the fresh air air conditioner is the fresh air mode;

[0145] Determine the target speed of the fresh air fan and the opening of the second vent according to the target fresh air volume;

[0146] Specifically, the fresh air air conditioner is running, and the temperature and humidity of the indoor air and the temperature and humidity of the outdoor air are detected again at every certain time interval t, until the detection result is determined to be not the current state, and the corresponding state operation mode is switched.

[0147] The indoor air status is divided into nine types using a surface classification method, which is more reasonable and comprehensive, and can achieve precise control; the operation mode and fresh air volume of the fresh air air conditioner can meet the different needs of users, and the temperature and humidity of the indoor air can be adjusted to ensure that the fresh air air conditioner can be stable in the appropriate temperature and humidity range for a long time during operation, solving the problem of unsuitable temperature and humidity after long-term operation of the fresh air air conditioner; indoor air and outdoor air circulate to keep the indoor air fresh; the number of times the fresh air air conditioner is started and stopped is reduced, and the user experience is improved.

[0148] While the exemplary embodiments of the present disclosure have been specifically illustrated and described above, it should be understood that the present disclosure is not limited to the detailed structures, configurations, or implementations described herein; rather, the present disclosure is intended to encompass various modifications and equivalent configurations within the spirit and scope of the appended claims.

Claims

1. A windshield device for a ventilation device, wherein the ventilation device is formed with a first ventilation opening; characterized in that: The windshield device comprises a bracket (12), a support plate (14), a connecting pipe (13) and a windshield; the supporting plate (14) is arranged on the bracket (12) and is formed with a second vent; an installation cavity (151) is formed between the supporting plate (14) and the bracket (12); the connecting pipe (13) is arranged on the bracket (12), and one end of the connecting pipe (13) is used to be arranged at the first vent and communicate with the first vent; the other end of the connecting pipe (13) is located in the installation cavity (151) and is provided with the supporting plate (14), and is communicated with the second vent; The wind shield is movably arranged on a side of the support plate (14) away from the connecting pipe (13), and the wind shield comprises a plurality of wind shields, each wind shield comprising a first end (241) and a second end (242); the first end (241) is away from the second vent and can slide along the plate surface of the support plate (14), and the second end (242) is arranged opposite to the first end (241) and can slide along the first end (241); The plurality of windshields have a first working state and a second working state; When the plurality of wind shields are in a first working state, the second ends (242) of the plurality of wind shields are away from the second vent and separated from each other, so that the second vent is in an open state; the opening size of the second vent can be adjusted by adjusting the sliding displacement size of the plurality of wind shields; when the plurality of wind shields are in a second working state, the second ends (242) of the plurality of wind shields are close to the second vent and spliced ​​together, so that the second vent is in a closed state; The support plate (14) is formed with a plurality of first sliding grooves (141) and a plurality of second sliding columns (142), the number of the first sliding grooves (141) and the number of the second sliding columns (142) are the same as the number of the windshields, and the plurality of the first sliding grooves (141) and the plurality of the windshields are arranged along the circumference of the connecting pipe (13); the second sliding columns (142) are close to the first sliding grooves (141) and are located on the inner side of the first sliding grooves (141); Each windshield is rotatably provided with a first sliding post (243) at the first end (241) and is formed with a second sliding groove (244); the first sliding post (243) is embedded in the corresponding first sliding groove (141), and the second sliding post (142) is embedded in the second sliding groove (244); The bracket (12) is further formed with a mounting position (152) arranged opposite to the mounting cavity (151); the windshield device further includes a transmission mechanism, the transmission mechanism including a driving member (31) and a driven member (32) transmission-connected to the driving member (31); the driving member (31) is arranged at the mounting position (152), the driven member (32) is rotatably arranged in the mounting cavity (151) and sleeved on the outside of the connecting pipe (13); the driven member (32) is fixedly connected to a plurality of first sliding posts (243); When the active member (31) is controlled to rotate, the driven member (32) drives the first sliding column (243) to slide along the corresponding first sliding groove (141), and the second sliding groove (244) slides around the corresponding second sliding column (142), so that the second end portions (242) of the plurality of windshields move away from or close to the second vent.

2. The windshield device according to claim 1, characterized in that: The first sliding groove (141) is an arc-shaped structure, and the extension direction of the second sliding column (142) is perpendicular to the plate surface of the support plate (14); The extension direction of the first sliding column (243) is perpendicular to the surface of the windshield where it is located, and the extension direction of the second sliding groove (244) is consistent with the extension direction of the windshield where it is located.

3. The windshield device according to claim 1, characterized in that: The windshield device further comprises a driving motor (33), and the driving motor (33) is drivingly connected to the active component (31).

4. The windshield device according to claim 3, characterized in that: A plurality of limiting columns (121) and a third sliding groove (122) are formed on one side of the bracket (12) close to the support plate (14); a plurality of limiting grooves (143) are formed on the support plate (14); the limiting columns (121) cooperate with the limiting grooves (143) to connect the bracket (12) and the support plate (14) to form a squirrel cage structure, and the squirrel cage structure encloses the installation cavity (151); A third sliding post (321) is formed on a side of the driven member (32) close to the bracket (12), and the third sliding post (321) cooperates with a third sliding groove (122) so that the driven member (32) can rotate relative to the bracket (12).

5. A fresh air air conditioner, characterized in that: The fresh air air conditioner includes an indoor unit, a fresh air device and a windshield device according to any one of claims 1 to 4; the fresh air device is arranged indoors and includes a fresh air duct (11), the windshield device is arranged at the air inlet end of the fresh air duct (11), the air outlet end of the connecting pipe (13) is connected to the air inlet end of the fresh air duct (11), and the air inlet end of the connecting pipe (13) is connected to the second vent; the windshield is arranged at the second vent.

6. The fresh air air conditioner according to claim 5, characterized in that: The fresh air air conditioner further comprises an indoor unit, the indoor unit comprising an indoor fan and an indoor heat exchanger; the fresh air device forms a fresh air duct, the air inlet end of the fresh air duct is connected to the air outlet end of the fresh air pipe (11), and a fresh air fan and a humidification module are provided in the fresh air duct, the humidification module is used to humidify the fresh air entering the fresh air duct; The fresh air air conditioner includes a heating mode, a cooling mode, a fresh air mode, a humidification mode and a dehumidification mode; when the fresh air air conditioner is in the heating mode, the indoor fan operates to heat the indoor air with the indoor heat exchanger and raise the temperature to a preset temperature; when the fresh air air conditioner is in the cooling mode, the indoor fan operates to heat the indoor air with the indoor heat exchanger and lower the temperature to a preset temperature; when the fresh air air conditioner is in the fresh air mode, the fresh air fan operates to allow outdoor fresh air to enter the room through the fresh air pipe (11) and the fresh air duct; when the fresh air air conditioner is in the humidification mode, the humidification module operates to humidify the fresh air in the fresh air duct; when the fresh air air conditioner is in the dehumidification mode, the indoor fan operates to heat the indoor air with the indoor heat exchanger and lower the humidity to a preset humidity.

7. A control method for a fresh air air conditioner according to claim 6, characterized in that: The control method includes: S1. Determining a target operating mode of the fresh air air conditioner based on the current state of the indoor air and the relationship between the moisture content of the indoor air and the outdoor air; S2. Control the fresh air air conditioner to operate in a target operation mode.

8. The control method of the fresh air air conditioner according to claim 7, characterized in that: The method of determining the current state of the indoor air comprises: Get the temperature and humidity of indoor air; Determining whether the temperature of the indoor air is within a preset temperature range and whether the humidity of the indoor air is within a preset humidity range; The current state of the indoor air is determined based on the determination results of whether the temperature of the indoor air is within a preset temperature range and whether the humidity of the indoor air is within a preset humidity range.

9. The control method of the fresh air air conditioner according to claim 8, characterized in that: Said S1 comprises: When the temperature of the indoor air is greater than a maximum threshold value of a preset temperature range and the humidity of the indoor air is greater than a maximum threshold value of a preset humidity range, the indoor air is in a first attribute state; Determine that the target operating mode of the fresh air air conditioner is cooling mode.

10. The control method of the fresh air air conditioner according to claim 8, characterized in that: Said S1 further comprises: When the temperature of the indoor air is greater than a maximum threshold value of a preset temperature interval and the humidity of the indoor air is less than a minimum threshold value of a preset humidity interval, the indoor air is in a second attribute state; When the humidity of the indoor air is less than that of the outdoor air, determining the target operation mode of the fresh air air conditioner to be the cooling mode and the fresh air mode; calculating the target fresh air volume in the fresh air mode according to the return air parameters of the indoor unit and the outdoor air parameters; and / or, When the humidity content of the indoor air is greater than that of the outdoor air, determining the target operating mode of the fresh air air conditioner to be a cooling mode, a fresh air mode, and a humidification mode; and calculating the target fresh air volume in the fresh air mode according to the fresh air parameters in the fresh air duct and the return air parameters of the indoor unit; Among them, the return air parameters of the indoor unit include at least return air temperature, return air humidity and return air volume, the outdoor air parameters include at least outdoor air temperature and outdoor air humidity, and the fresh air parameters in the fresh air duct include at least fresh air temperature and fresh air humidity.

11. The control method of the fresh air air conditioner according to claim 8, characterized in that: Said S1 further comprises: When the temperature of the indoor air is greater than the maximum threshold of the preset temperature range and the humidity of the indoor air is within the preset humidity range, the indoor air is in the third property state; When the difference between the indoor air temperature and the preset temperature is greater than the preset temperature difference, determining that the target operation mode of the fresh air air conditioner is a cooling mode; and / or, When the difference between the indoor air temperature and the preset temperature is less than or equal to the preset temperature difference, the target operation mode of the fresh air air conditioner is determined to be the cooling mode and the fresh air mode.

12. The control method of the fresh air air conditioner according to claim 8, characterized in that: Said S1 further comprises: When the temperature of the indoor air is lower than the minimum threshold of the preset temperature range and the humidity of the indoor air is higher than the maximum threshold of the preset humidity range, the indoor air is in the fourth attribute state; Determine that the target operating mode of the fresh air air conditioner is a heating mode.

13. The control method of the fresh air air conditioner according to claim 8, characterized in that: Said S1 further comprises: When the temperature of the indoor air is lower than the minimum threshold of the preset temperature range and the humidity of the indoor air is lower than the minimum threshold of the preset humidity range, the indoor air is in the fifth attribute state; When the humidity content of the indoor air is less than the humidity content of the outdoor air, determining the target operation mode of the fresh air air conditioner to be the heating mode and the fresh air mode; and / or, When the humidity content of the indoor air is greater than the humidity content of the outdoor air, the target operation mode of the fresh air air conditioner is determined to be a heating mode, a fresh air mode and a humidification mode.

14. The control method of the fresh air air conditioner according to claim 8, characterized in that: Said S1 further comprises: When the temperature of the indoor air is lower than the minimum threshold of the preset temperature range and the humidity of the indoor air is within the preset humidity range, the indoor air is in the sixth attribute state; When the difference between the indoor air temperature and the preset temperature is greater than the preset temperature difference, determining that the target operation mode of the fresh air air conditioner is a heating mode; and / or, When the difference between the indoor air temperature and the preset temperature is less than or equal to the preset temperature difference, the target operation mode of the fresh air air conditioner is determined to be the heating mode and the fresh air mode.

15. The control method of the fresh air air conditioner according to claim 8, characterized in that: Said S1 further comprises: When the temperature of the indoor air is within the preset temperature range and the humidity of the indoor air is greater than the maximum threshold of the preset humidity range, the indoor air is in the seventh attribute state; Determine that the target operating mode of the fresh air air conditioner is a dehumidification mode.

16. The control method of the fresh air air conditioner according to claim 8, characterized in that: Said S1 further comprises: When the temperature of the indoor air is within the preset temperature range and the humidity of the indoor air is less than the minimum threshold of the preset humidity range, the indoor air is in the eighth attribute state; When the humidity content of the indoor air is less than the humidity content of the outdoor air, determining that the target operation mode of the fresh air air conditioner is the fresh air mode; and / or, When the humidity content of the indoor air is greater than the humidity content of the outdoor air, the target operation mode of the fresh air air conditioner is determined to be the fresh air mode and the humidification mode.

17. The control method of the fresh air air conditioner according to claim 8, characterized in that: Said S1 further comprises: When the temperature of the indoor air is within a preset temperature range and the humidity of the indoor air is within a preset humidity range, the indoor air is in a ninth attribute state; Determine that the target operating mode of the fresh air air conditioner is the fresh air mode.

18. The control method of the fresh air air conditioner according to claim 8, characterized in that: Said S1 further comprises: When the target operation mode includes a fresh air mode, the target fresh air volume in the fresh air mode can be adjusted according to the target rotation speed of the indoor fan and the opening degree of the second vent.

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