Shielding components, dual-fan assembly, dual-fan control method and air conditioning

Abstract

This invention provides a shielding component, a dual-fan assembly, a dual-fan control method, and an air conditioner, relating to the field of fan technology. Its main purpose is to solve the problem of low energy efficiency in traditional dual-fan systems, while also alleviating or even eliminating air leakage issues. The shielding component includes a baffle and a driving component. The baffle has a first form and a second form. When the baffle is in the first form, it is in an unfolded state; when it is in the second form, it is in a retracted state. The driving component is connected to the baffle and drives it to switch between the first and second forms. The dual-fan assembly includes two fans, each fan including a fan body and the shielding component described above. The fan body includes fan blades, and the shielding component is located in front of the fan blades. When the baffle in the shielding component is in the first form, it can shield the fan blades.

Description

Technical Field

[0001] This invention relates to the field of fan technology, and in particular to a shielding component, a dual-fan assembly, a dual-fan control method, and an air conditioner. Background Technology

[0002] The dual-fan modular unit has two different operating modes: single-fan operation and dual-fan operation. In single-fan operation mode, air leakage occurs at the other fan, which seriously affects the energy efficiency of the unit. In addition, since the unit is placed outdoors, the fan section is also subject to rain leakage and sun exposure due to weather conditions, which will affect the lifespan of the equipment.

[0003] To address the aforementioned issues, the current common practice is to operate the two fans separately as a single system, such as... Figure 1-3 As shown, while this method can alleviate air leakage to some extent, it also affects the energy efficiency of the equipment unit, preventing it from operating at its optimal state. Furthermore, this method cannot solve the problems of rain leakage and sun exposure at the fan location.

[0004] To further protect the equipment and improve the unit's energy efficiency, a new type of structure needs to be developed. Summary of the Invention

[0005] The purpose of this invention is to provide a shielding component, a dual-fan assembly, a dual-fan control method, and an air conditioner to solve the problem of low energy efficiency of fans due to air leakage in the prior art. The various technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The shielding member provided by the present invention includes:

[0008] A baffle, which has a first form and a second form. When the baffle is in the first form, the baffle is in an unfolded state. When the baffle is in the second form, the baffle is in a retracted state.

[0009] A driving element is connected to the baffle and drives the baffle to switch between the first mode and the second mode.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] As a further improvement of the present invention, the baffle includes a plurality of connected fan blades, and the driving member can drive the fan blades to rotate and realize the switching of the baffle between a first mode and a second mode.

[0012] As a further improvement of the present invention, all the fan blades are arranged sequentially along their thickness direction. When the baffle is in the first state, the projection shape of the baffle in the thickness direction is a rotationally symmetric figure.

[0013] As a further improvement of the present invention, a limiting plate is provided on the fan blade at one end of the baffle in the thickness direction. When the baffle is in the first state, the limiting plate can connect with the fan blade at the other end of the baffle in the thickness direction.

[0014] As a further improvement of the present invention, at least a portion of the two side edges in the width direction of the fan blade protrudes above or below the fan blade to form a first baffle and a second baffle, the first baffle and the second baffle being located on the upper and lower sides of the fan blade, respectively.

[0015] As a further improvement of the present invention, all of the fan blades are pivotally connected to form the baffle, and the first baffle and the second baffle are disposed away from the pivot of the baffle.

[0016] As a further improvement of the present invention, the driving component is an electric valve.

[0017] The present invention also provides a dual-fan assembly, comprising two fans, each fan comprising a fan body and a shielding member as described in any of the preceding claims;

[0018] The fan body includes a fan blade, and the shielding member is located at the front of the fan blade. When the baffle in the shielding member is in the first state, it can shield the fan blade.

[0019] As a further improvement of the present invention, the drive element is located between the two fan bodies.

[0020] The present invention also provides a dual-fan control method, comprising:

[0021] Determine the operating status of the fan body;

[0022] The control system switches the baffle that works in conjunction with the fan body between opening and closing based on the operating status of the fan body.

[0023] As a further improvement to the present invention, it also includes:

[0024] Obtain the actual load and required air volume of the unit;

[0025] The number of fan units to be started is determined based on the actual load and required air volume of the unit, and the corresponding number of fan units are started.

[0026] As a further improvement of the present invention, the number of fan units to be started is determined according to the actual load of the unit and the required air volume, and the corresponding number of fan units are started, including:

[0027] Obtain the preset load and compare it with the actual load of the unit;

[0028] Based on the comparison results, select the preset number of start-ups and start the corresponding number of fan units.

[0029] As a further improvement of the present invention, a preset number of start-up units is selected based on the comparison results, and a corresponding number of fan bodies are started, including:

[0030] If the actual load of the unit is zero, both fans will be stopped.

[0031] If the actual load of the unit does not exceed the preset load and the required air volume of the unit is N1, then one fan body is in the start state and the other fan body is in the stop state.

[0032] If the actual load of the unit is greater than the preset load, and the required air volume of the unit is N2, then both fans will be in the start-up state.

[0033] N2 > N1.

[0034] As a further improvement of the present invention, when the fan body is in a stopped state, the baffle that cooperates with the fan body unfolds and covers the fan body.

[0035] The present invention also provides an air conditioner, including the aforementioned shielding member.

[0036] Compared with the prior art, the present invention has the following advantages:

[0037] This invention designs a novel shielding component and a dual-fan assembly incorporating this component. The adjustable shielding component allows for both shielding and exposing the fan body, ensuring a good seal when the fan is not running, preventing air leakage, and improving the unit's energy efficiency. Furthermore, the shielding component helps protect the fan body from sun exposure or rain, preventing its lifespan from being affected. The dual-fan control method provided by this invention can improve the unit's energy efficiency and reduce operating costs by controlling fan operation and the shape of the baffle. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1This is a partial structural diagram of a dual-fan assembly in the prior art;

[0040] Figure 2 This is a top view of a dual-fan assembly in the prior art;

[0041] Figure 3 This is a side view of a dual-fan assembly in the prior art;

[0042] Figure 4 This is a schematic diagram of the structure of the baffle in the shielding component provided by the present invention;

[0043] Figure 5 yes Figure 4 A schematic diagram of the structure of the fan blades in the diagram;

[0044] Figure 6 This is a side view of the dual-fan assembly provided by the present invention;

[0045] Figure 7 This is a flowchart of one embodiment of the dual-fan control method provided by the present invention.

[0046] In the diagram: 1. Baffle; 11. Fan blade; 111. First baffle; 112. Second baffle; 2. Drive component; 3. Fan body; 31. Fan blade; 32. Net cover; 33. Draft guide; 34. Motor. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and 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 of the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] This invention provides a shielding component, including a baffle 1 and a driving member 2. The baffle 1 has a first form and a second form, and the driving member 2 is connected to the baffle 1 and can drive the baffle 1 to switch between the first form and the second form. When the baffle 1 is in the first form, the baffle 1 is in an unfolded state, and when the baffle 1 is in the second form, the baffle 1 is in a retracted state.

[0051] By adjusting the shape of the baffle 1, it can switch between two states: retracted and extended. When extended, it can act as a shield to cover the corresponding structure or component, thus preventing air or water leakage. When retracted, it can expose the structure behind it without affecting the normal use of the corresponding structure.

[0052] As an optional implementation, the baffle 1 includes a plurality of connected fan blades 11, and the driving member 2 can drive the fan blades 11 to rotate and realize the switching of the baffle 1 between the first mode and the second mode.

[0053] Specifically, the number of the aforementioned fan blades 11 is multiple, and all the fan blades 11 can be stacked sequentially along their thickness direction to form a structure similar to a folding fan, such as... Figure 4 As shown.

[0054] in, Figure 4 When the baffle 1 is in the first state (i.e., the unfolded state), since the projection shapes of the multiple fan blades 11 in the thickness direction are the same, the projection shape of the baffle 1 in the thickness direction is a rotationally symmetric figure. Similarly, when the baffle 1 is in the second state (i.e., the retracted state), the multiple fan blades 11 are arranged in an overlapping manner to form a fan-shaped structure with a certain thickness.

[0055] Specifically, the shape formed by the projection of the baffle 1 in the thickness direction when it is unfolded can be a circle or a similar regular polygonal structure. In use, the multiple blades 11 in the baffle 1 can be set to unfold counterclockwise to achieve a first state, or the multiple blades 11 can be set to close clockwise to achieve a second state. The direction of movement of the blades 11 can be adjusted according to actual needs, as long as the switching between the two different states is satisfied.

[0056] To achieve the above objectives, it is first necessary to ensure that multiple fan blades 11 can rotate around the same axis.

[0057] Specifically, as an optional implementation, a limiting plate is provided on the fan blade 11 at one end in the thickness direction of the baffle 1. When the baffle 1 is in the first state, the limiting plate can connect with the fan blade 11 at the other end in the thickness direction of the baffle 1, such as... Figure 4 As shown, the limiting plate structure can be seen on one side of the bottommost fan blade 11.

[0058] like Figure 5 As shown, the two side edges of the fan blade 11 in the width direction protrude upwards or downwards to form a first baffle 111 and a second baffle 112, respectively. The first baffle 111 and the second baffle 112 are located on the upper and lower sides of the fan blade 11, respectively. Two adjacent fan blades 11 can pull each other by the cooperation of the first baffle 111 and the second baffle 112.

[0059] As a further improvement of the present invention, all the fan blades 11 are pivotally connected to form a baffle 1, with the first baffle 111 and the second baffle 112 disposed away from the pivot of the baffle 1. Figure 5 In this configuration, the first baffle 111 and the second baffle 112 are both arranged close to the arc-shaped sidewall of the fan blade 11.

[0060] At this time, when the aforementioned fan blade 11 rotates, the baffle 1 can be opened and closed by rotating sequentially under the mutual cooperation and pulling of the first baffle 111 and the second baffle 112.

[0061] Alternatively, all fan blades 11 can be provided with arc-shaped guide grooves and protrusions on both sides in the thickness direction, with the arc-shaped guide grooves centered on the axis of the baffle.

[0062] At this time, two adjacent fan blades 11 can be connected by an arc-shaped guide groove and a protrusion, achieving relative rotation and positioning. It should be noted that the arc-shaped guide groove and the protrusion are arranged in a coordinated manner, and the two ends of the arc-shaped guide groove do not penetrate the left and right edges of the fan blade 11.

[0063] For ease of use, the baffle 1 can be manually adjusted to control its opening and closing, or it can be implemented using a corresponding electronic structure. In this embodiment, the driving component 2 can be an electric valve. When energized, the electric valve can control the baffle 1 to switch between a first and a second state.

[0064] It should be noted that when the baffle 1 switches between the first and second forms, its opening / closing angle can be detected and limited by a limit switch and an angle detector. The structure and usage of the above-mentioned devices are existing technologies and will not be described in detail here.

[0065] The present invention also provides a dual-fan assembly, including two fans, each of which includes a fan body 3 and a shielding member as described in any of the above claims; the fan body 3 includes a fan blade 31, the shielding member is located in front of the fan blade 31, and the baffle 1 in the shielding member can shield the fan blade 31 when it is in the first state.

[0066] In addition to the fan blades 31, the main body 3 of the fan also includes a mesh cover 32, a guide vane 33, and a motor 34, etc. Figure 6 As shown, the baffle 1 in the shielding component is located outside the mesh cover 32 and at the airflow outlet. Therefore, when the baffle 1 is in the first state, the baffle 1 in the unfolded state can block the airflow outlet of the fan body 3, thereby solving the air leakage problem of the fan body 3.

[0067] When this dual-fan assembly is in operation, both fans can be started simultaneously or only one fan can be started as needed. When only one fan is started, the baffle 1 at the fan in the starting state is in the second state, while the baffle 1 at the fan in the stopping state is in the first state. At this time, the baffle can block the airflow outlet of the fan body 3 to prevent air leakage and affect the energy efficiency of the equipment.

[0068] As an optional implementation, the drive unit 2 is located between the two fan bodies 3.

[0069] To save equipment space, the aforementioned drive component 2 can be placed between the two fan bodies 3, such as... Figure 6 As shown, at this time, both drive components 2 are located between the two fan bodies 3 and arranged side by side.

[0070] This invention also provides a dual-fan control method, such as... Figure 7 As shown, this dual-fan control method can control the shape of the baffle 1 according to the operating status of the fan body 3.

[0071] The control method includes:

[0072] S1: Determine the operating status of the fan body 3;

[0073] S2: Control the baffle 1 that cooperates with the fan body 3 to switch between opening and closing according to the operating status of the fan body 3.

[0074] Specifically, when the fan body 3 is in a stopped state, the baffle 1 that cooperates with the fan body 3 unfolds and blocks the fan body 3.

[0075] When the fan body 3 is in operation, the baffle 1 installed in conjunction with the fan body 3 retracts and opens up the channel for gas to flow out, so as not to affect the normal use of the fan body 3; when the fan body 3 is stopped, the baffle 1 that is in conjunction with it unfolds and blocks the channel for gas to flow out, thereby preventing air or water leakage at the fan body 3.

[0076] In a dual-fan unit, when only one fan body 3 is running, shielding the other fan body 3 can effectively prevent low energy efficiency due to air leakage. Compared with the traditional method of separating the fan body in the middle (e.g., Figure 1-3 As shown, where Figure 1 The fairing and mesh are not shown; additionally... Figure 1 (The arrow in the diagram indicates the air intake direction). This structure ensures that the unit's energy efficiency is always at its optimal level. In addition, when both fan bodies 3 are in a stopped state, both fan bodies 3 are shielded by the baffle 1, which provides good rain and sun protection for the fan bodies 3, and can extend the service life of the fan bodies 3 to a certain extent.

[0077] As an optional implementation, the control method further includes:

[0078] Obtain the actual load and required air volume of the unit;

[0079] The number of fan bodies 3 to be started is determined based on the actual load and required air volume of the unit, and the corresponding number of fan bodies 3 are started.

[0080] At this time, whether the fan body 3 is started or not can be adjusted according to the actual load of the unit and the required air volume, so as to achieve energy saving.

[0081] As an optional implementation method, the actual load of the unit can be obtained by detecting the unit status.

[0082] Specifically, the unit has heating and / or cooling modes, and the actual load of the unit is determined comprehensively based on its different operating modes, indoor temperature, ambient temperature, and other conditions. The acquisition of the above data and the calculation of the actual load of the unit from the above data are existing technologies and will not be elaborated here.

[0083] As an optional implementation, the number of fan bodies 3 to be started is determined according to the actual load of the unit and the required air volume, and the corresponding number of fan bodies 3 is started. This includes: obtaining a preset load and comparing it with the actual load of the unit, selecting a preset number of fan bodies 3 to be started according to the comparison result, and starting the corresponding number of fan bodies 3.

[0084] It should be noted that the above-mentioned required air volume is a fixed value.

[0085] As an optional implementation, a preset number of start-up units is selected based on the comparison results, and a corresponding number of fan bodies 3 are started, including:

[0086] If the actual load of the unit is zero, both fans are in the off state;

[0087] If the actual load of the unit does not exceed the preset load and the required air volume of the unit is N1, then one fan is in the on state and the other fan is in the off state.

[0088] If the actual load of the unit is greater than the preset load, and the required air volume of the unit is N2, then both fans will be in the on state.

[0089] N2 > N1.

[0090] Let the preset load be ΔQ (its specific value can be determined manually according to design requirements and unit performance, etc.). When the actual load of the unit is zero, both fan bodies 3 are in the closed state. At this time, the drive component 2 is de-energized, and both baffles 1 are in the first state. When the unit starts and the actual load is greater than zero and does not exceed ΔQ, and the required air volume of the unit is N1, it is determined that one fan body 3 is started. The drive component 2 at the running fan body 3 is energized, and the baffle 1 connected to the energized drive component 2 is in the second state. When the unit starts and the actual load is greater than ΔQ, and the required air volume of the unit is N2, it is determined that both fan bodies 3 are in the open state. Both drive components 2 are energized, and both baffles 1 are in the second state.

[0091] It should be noted that the two wind turbine bodies 3 mentioned above will start in a fixed order. The starting order of the wind turbine bodies 3 can be determined based on a set starting order or the cumulative running time of the wind turbine bodies 3. The acquisition and calculation of the cumulative running time of the wind turbine bodies 3 are existing technologies and will not be elaborated here. In addition, the starting order of the wind turbine bodies 3 can also be sorted according to other common sorting methods.

[0092] Similarly, when the load of the unit is reduced to no more than ΔQ, in order to make the service time of the two fan bodies 3 basically the same and to avoid excessive wear of one fan body 3, the fan body 3 that starts first can be set to stop running first.

[0093] The present invention also provides an air conditioner, including the aforementioned shielding member.

[0094] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0095] It should be noted that in the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "multiple" or "more" means at least two.

[0096] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of the invention pertain.

[0097] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A dual-fan control method, characterized in that, include: Determine the operating status of the fan body; The baffle that works in conjunction with the fan body switches between opening and closing based on the operating status of the fan body. Also includes: Obtain the actual load and required air volume of the unit; The number of fan units to be started is determined based on the actual load and required air volume of the unit, and the corresponding number of fan units are started. The number of fan units to be started is determined based on the actual load and required air volume of the unit, and the corresponding number of fan units are started, including: Obtain the preset load and compare it with the actual load of the unit; Based on the comparison results, select the preset number of start-up units and start the corresponding number of fan units; Based on the comparison results, a preset number of start-up units is selected and the corresponding number of wind turbine units are started, including: If the actual load of the unit is zero, both fans will be stopped. If the actual load of the unit does not exceed the preset load and the required air volume of the unit is N1, then one fan body is in the start state and the other fan body is in the stop state. If the actual load of the unit is greater than the preset load, and the required air volume of the unit is N2, then both fans will be in the start-up state. N2 > N1.

2. The dual-fan control method according to claim 1, characterized in that, When the fan body is in a stopped state, the baffle that cooperates with the fan body unfolds and blocks the fan body.

3. The dual-fan control method according to claim 1, characterized in that, The invention includes a dual-fan assembly comprising two fans, each fan comprising a fan body and a shielding member. The fan body includes a fan blade, and the shielding member is located at the front of the fan blade. When the baffle in the shielding member is in the first state, it can shield the fan blade.

4. The dual-fan control method according to claim 3, characterized in that, The shielding component includes: A baffle, which has a first form and a second form. When the baffle is in the first form, the baffle is in an unfolded state. When the baffle is in the second form, the baffle is in a retracted state. A driving element is connected to the baffle and drives the baffle to switch between the first mode and the second mode.

5. The dual-fan control method according to claim 4, characterized in that, The drive unit is located between the two wind turbine bodies.

6. The dual-fan control method according to claim 5, characterized in that, The baffle includes multiple connected blades, and the driving component can drive the blades to rotate and switch the baffle between a first mode and a second mode.

7. The dual-fan control method according to claim 6, characterized in that, All the fan blades are arranged sequentially along their thickness direction. When the baffle is in the first state, the projection shape of the baffle in the thickness direction is a rotationally symmetric figure.

8. The dual-fan control method according to claim 6, characterized in that, A limiting plate is provided on the fan blade located at one end of the baffle in the thickness direction. When the baffle is in the first state, the limiting plate can connect with the fan blade at the other end of the baffle in the thickness direction.

9. The dual-fan control method according to claim 6, characterized in that, At least a portion of the two side edges in the width direction of the fan blade protrudes upward or downward to form a first baffle and a second baffle, respectively, with the first baffle and the second baffle located on the upper and lower sides of the fan blade.

10. The dual-fan control method according to claim 9, characterized in that, All the fan blades are pivotally connected to form the baffle, with the first baffle and the second baffle positioned away from the pivot of the baffle.

11. The dual-fan control method according to claim 9, characterized in that, The driving component is an electric valve.

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