CN111140961B - Protective device, evaporative cooling fan and control method - Google Patents
Protective device, evaporative cooling fan and control method Download PDFInfo
- Publication number
- CN111140961B CN111140961B CN202010066404.6A CN202010066404A CN111140961B CN 111140961 B CN111140961 B CN 111140961B CN 202010066404 A CN202010066404 A CN 202010066404A CN 111140961 B CN111140961 B CN 111140961B
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- Prior art keywords
- cooling fan
- evaporative cooling
- curtain
- rod body
- curtain cloth
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- 238000001816 cooling Methods 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000001681 protective effect Effects 0.000 title abstract description 5
- 239000004744 fabric Substances 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000001704 evaporation Methods 0.000 claims abstract description 19
- 230000008020 evaporation Effects 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 12
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
- F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/54—Free-cooling systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The application relates to the technical field of air conditioning devices, in particular to a protection device for an evaporative cooling fan, the evaporative cooling fan comprising the protection device and a control method of the evaporative cooling fan. The protection device comprises a first rod body, a curtain cloth and a driving component. The first rod body is used for being transversely arranged in a wet curtain installation area of the evaporative cooling fan; the curtain cloth is hung on the first rod body and can slide along the first rod body; the driving assembly is used for driving the curtain cloth to slide along the first rod body so as to open or close the curtain cloth. Protective device and install its evaporation formula thermantidote when neglecting loading wet curtain, open through drive assembly drive curtain cloth, can separate evaporation formula thermantidote top water column and air outlet and electrical structure, perhaps make the water column flow back to the water tank along waterproof cloth, avoid causing the water droplet to wet the user or cause the problem of electrical safety when neglecting loading wet curtain.
Description
Technical Field
The application relates to the technical field of air conditioning devices, in particular to a protection device for an evaporative cooling fan, an evaporative cooling fan comprising the protection device and a control method of the evaporative cooling fan.
Background
The existing cooling fan mostly adopts a wet curtain structure, the wet curtain plays a role of dispersing water flow, for the evaporative cooling fan with the detachable wet curtain, water pumped by the water pump flows out from a water outlet at the top of the cooling fan, a water column flowing out from the water outlet flows through the wet curtain, the contact area with air can be increased, the evaporation capacity is increased, and water mist which cannot be seen by water columns to form naked eyes is blown out from an air outlet along with wind. When a user removes the wet curtain, the user often forgets to install the wet curtain after cleaning the machine body and the wet curtain, and then the water pump is started to use the humidifying function. The water column flowing down from the top of the evaporative cooling fan is not subjected to diffusion evaporation by the wet curtain, and is directly blown out from the air outlet of the cooling fan along with wind, so that water drops are large, users who are blowing are easy to wet, and the water drops drop on electrical structures such as a motor and the like can also cause electrical safety problems.
Disclosure of Invention
In order to solve the technical problems, the application provides a protection device for an evaporative cooling fan, the evaporative cooling fan comprising the protection device and a control method of the evaporative cooling fan, so that water drops can be prevented from being directly blown out from an air outlet and potential safety hazards of the water drops to an electrical structure can be reduced under the condition that a wet curtain is forgotten to be installed.
In order to achieve the above object, according to one aspect of the present application, there is provided a protection device for an evaporative cooling fan.
A protective device according to an embodiment of the present application includes:
the first rod body is transversely arranged in a wet curtain installation area of the evaporative cooling fan;
the curtain cloth is hung on the first rod body and can slide along the first rod body; and
the driving assembly is used for driving the curtain cloth to slide along the first rod body so as to open or close the curtain cloth.
Further, the drive assembly comprises a motor, an external thread arranged on the first rod body, a mounting piece in threaded connection with the first rod body and a rotation constraint piece, the motor drives the first rod body to rotate, one end of the curtain cloth is fixed on the mounting piece, and the rotation constraint piece is used for limiting the rotation freedom degree of the mounting piece.
Further, the rotation restraint piece comprises a sliding block formed on the installation piece and a sliding groove used for being arranged on the evaporation type cooling fan, wherein the sliding groove is parallel to the first rod body, and the sliding limit of the sliding block is positioned in the sliding groove.
Further, hooks for hanging the curtain cloth are formed on the mounting piece.
Further, a bump is formed at the end of the motor output shaft, a groove matched with the bump is formed at one end of the first rod body, and the bump is inserted into the groove.
Further, the protection device further comprises a second rod body, the second rod body is used for being transversely arranged in a wet curtain installation area of the evaporative cooling fan, and the lower end of the curtain is connected to the second rod body in a sliding mode.
Further, the curtain cloth is arranged on the first rod body and the second rod body through hanging rings.
In order to achieve the above object, according to a second aspect of the present application, there is also provided an evaporative cooling fan.
According to the embodiment of the application, the evaporative cooling fan comprises the protection device provided by the first aspect of the application, wherein the first rod body is fixed on the shell of the evaporative cooling fan, and the first rod body is positioned at one side of the top water outlet of the evaporative cooling fan, which is close to the air outlet.
Further, the evaporative cooling fan further comprises a control switch, when the evaporative cooling fan is provided with a wet curtain, the wet curtain triggers the control switch, and the control switch sends a signal to the driving assembly.
Further, the control switch is fixed on the shell through a buckle.
In order to achieve the above object, according to a third aspect of the present application, the present application further provides a control method for an evaporative cooling fan according to the second aspect of the present application.
The control method of the evaporative cooling fan according to the embodiment of the application comprises the following steps:
detecting whether the evaporative cooling fan is provided with a wet curtain or not;
if the evaporation type cooling fan is not provided with a wet curtain, the driving assembly drives the curtain to slide along the first rod body and expand when the evaporation type cooling fan is started;
if the evaporative cooling fan is provided with a wet curtain, when the evaporative cooling fan is started, the driving assembly drives the curtain to slide along the first rod body and fold.
According to the protection device and the evaporation type cooling fan provided by the technical scheme, when the wet curtain is neglected to be installed, the driving assembly drives the curtain to open, so that a water column flowing down from the top of the evaporation type cooling fan can be separated from the air outlet and the electric structure, or the water column flows back to the water tank along the waterproof cloth, and the problem that water drops wet users or electric safety is caused when the wet curtain is neglected to be installed is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the application and are not to be construed as unduly limiting the application. In the drawings:
fig. 1 schematically shows a structural reference diagram of a protection device according to an embodiment of the present application;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic view showing a first rod body according to an embodiment of the present application;
fig. 4 schematically shows a reference diagram of a motor structure according to an embodiment of the present application;
fig. 5 schematically shows a structural reference diagram of the motor matched with the first rod body according to the embodiment of the present application;
FIG. 6 schematically shows a structural reference view of a mounting member provided by an embodiment of the present application;
FIG. 7 is a schematic reference diagram showing the structure of the protection device mounted on the evaporative cooling fan according to the embodiment of the present application; and
fig. 8 is a partial enlarged view of a portion B in fig. 7.
In the figure:
1. a first rod body; 101. an external thread; 102. a groove; 103. clamping springs; 2. cord fabric; 3. a motor; 301. a bump; 4. a mounting member; 401. a slide block; 402. a hook; 403. a sleeve; 404. an internal thread; 5. a chute; 6. a second rod body; 7. a hanging ring; 8. a housing; 9. a control switch; 10. and (5) a buckle.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the foregoing figures are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed but may include other elements not expressly listed or inherent to such article or apparatus.
In the present application, the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", and the like are based on the azimuth or positional relationship shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
In the working process of the evaporative cooling fan, water pumped by the water pump flows out from the water outlet at the top of the cooling fan, and water columns flowing out from the water outlet flow through the wet curtain, so that the contact area with air can be increased, the evaporation capacity is increased, and water mist which is invisible to the naked eyes formed by the water columns is blown out from the air outlet along with wind. When a user removes the wet curtain, and cleans the machine body and the wet curtain, the user forgets to install the wet curtain easily, and at the moment, the cooling fan is started to cause water drops to wet the user who is blowing, and the electric safety problem is possibly generated. To solve this problem, the embodiment of the present application provides a protection device as shown in fig. 1 and 2, for being mounted on an evaporative cooling fan, comprising a first rod 1, a curtain 2 and a driving assembly, wherein the first rod 1 is used for being transversely arranged at a wet curtain mounting area of the evaporative cooling fan; the curtain cloth 2 is hung on the first rod body and can slide along the first rod body; the driving component is used for driving the curtain cloth 2 to slide along the first rod body 1 so as to open or close the curtain cloth 2. When the curtain cloth 2 is in an open state, the curtain cloth is positioned between the water outlet and the main body of the cooling fan, so that large water drops can be prevented from being blown out from the air outlet, and the water drops can be prevented from splashing on electrical elements in the main body of the cooling fan, and potential safety hazards are reduced. When the curtain cloth is arranged to have a certain angle, the water column flowing out of the water outlet can be directly dripped on the curtain cloth 2, and at the moment, the curtain cloth 2 can play a role in drainage, so that water flow is drained to a water tank below. The material of the curtain cloth 2 is not particularly limited, and is preferably waterproof cloth, which can play roles of blocking and drainage.
In some embodiments, the driving assembly includes a motor 3, an external thread 101 formed on the first rod body 1, a mounting member 4 screwed with the first rod body 1, and a rotation restriction member, wherein the motor 3 drives the first rod body 1 to rotate, one end of the curtain cloth 2 is fixed on the mounting member 4, and the rotation restriction member is used for restricting the rotation freedom of the mounting member 4. The first rod body is driven to rotate around the central axis through the motor 3, the mounting piece 4 is in threaded connection with the first rod body 1 and limited by the rotation constraint piece, so that the mounting piece 4 can only move in the linear direction along the first rod body 1 which rotates, rotation can not be generated, one end of the curtain cloth 2 is fixed on the mounting piece 4, the curtain cloth 2 can be driven to be opened and folded through the reciprocating linear motion of the mounting piece 4, as shown in fig. 1 and 2, when the mounting piece 4 is driven by the first rod body 1 to move from left to right, the curtain cloth 2 is gradually folded in an opened state, and when the mounting piece 4 is driven by the first rod body 1 to move from right to left, the curtain cloth 2 is gradually opened in a folded state.
Specifically, as shown in fig. 3-5, a protruding block 301 is formed at an end of the output shaft of the motor 3, a groove 102 matched with the protruding block 301 is formed at one end of the first rod body 1, the protruding block 301 is inserted into the groove 102, and the matching coupling of the protruding block 301 and the groove 102 can realize the power output of the motor 3, and the motor is simple in structure and easy to assemble. In a specific use process, the first rod body can be installed at the top of a shell 8 (specifically, a rear shell) of the evaporative cooling fan, fixing holes are cut at corresponding positions of the top of the shell, two ends of the first rod body 1 penetrate through the fixing holes, the motor 3 is also fixed on the shell, the diameter of an opening in the shell 8 is usually slightly larger than that of the first rod body 1, in order to prevent the first rod body 1 from moving in the axial direction, as shown in fig. 3 and 5, snap springs 103 are installed at two ends of the first rod body 1, the diameter of each snap spring 103 is larger than that of the opening in the shell 8, and the limiting effect on the first rod body 1 in the axial direction can be achieved.
As shown in fig. 6, a specific optional structure of the mounting member 4 is provided, as shown in the drawing, the mounting member 4 includes a sleeve 403, a slider 401 and a hook 402, and an internal thread matching with an external thread on the first rod body 1 is provided in the sleeve 403, so that the sleeve 403 is screwed with the first rod body 1, the hook 402 is used for hanging the curtain fabric 2, and the curtain fabric 2 is convenient to install and remove in a hook form. The sliding block 401 is used for matching with a sliding groove 5 arranged on the evaporative cooling fan to form the rotation constraint piece, the sliding groove 5 is parallel to the first rod body 1, and the sliding block 401 is limited in the sliding groove 5 in a sliding way, so that the rotation constraint on the installation piece 4 is realized. The chute 5 may be a groove formed in the housing 8 therebetween, or may be realized by two slits in a rib structure disposed in parallel on the housing, and the specific implementation forms may be various.
As shown in fig. 1, in some embodiments, the protection device further includes a second rod 6, where the second rod 6 is used to be transversely disposed in a wet curtain installation area of the evaporative cooling fan, and a lower end of the curtain 2 is slidably connected to the second rod 6. The second rod body 6 is used for restraining the lower end of the curtain cloth 2, and the curtain cloth 2 can be tensioned through the action of the first rod body 1 and the second rod body 6, and the lower edge of the curtain cloth 2 cannot swing randomly. In addition, the inclined arrangement of the curtain cloth 2 can be realized through the dislocation arrangement of the first rod body 1 and the second rod body 6, and particularly in the use process, the first rod body 1 is positioned on one side of the top water outlet of the evaporative cooling fan, which is close to the air outlet, and the second rod body 6 is arranged on one side of the top water outlet of the evaporative cooling fan, which is far away from the air outlet, so that the curtain cloth 2 can be positioned under the water outlet, and the water outlet of the water outlet can drop on the curtain cloth 2, thereby being drained by the curtain cloth 2. Preferably, as shown in fig. 1 and 2, the curtain 2 is mounted on the first rod body 1 and the second rod body 6 through a hanging ring 7, and the width dimension of the hanging ring 7 is preferably larger than the pitch of the external thread on the first rod body 1, so as to prevent the hanging ring 7 from being clamped between the threads, and realize stable sliding of the hanging ring 7. In addition, the second rod body 6 is preferably made of elastic material, such as slightly bendable plastic, and when in installation, the two ends of the second rod body 6 can be respectively inserted into corresponding openings of the shell 8 by slightly bending the second rod body 6, after the second rod body is loosened, the second rod body can be restored to the original state due to elasticity and is clamped on the openings, so that the purpose of fixing is achieved, and the installation and the disassembly are convenient.
It should be noted that other configurations and operations of the protection device of the present application will be known to those skilled in the art, and reference is made to the related device structure in the prior art, and will not be described in detail herein.
The embodiment of the application also provides an evaporative cooling fan, which comprises the protection device provided by the embodiment of the application, as shown in fig. 7, the first rod body 1 is fixed on the shell 8 of the evaporative cooling fan, and the first rod body 1 is positioned at one side of the top water outlet of the evaporative cooling fan, which is close to the air outlet. When the evaporation type cooling fan leaks to install the wet curtain, the curtain cloth is driven to be opened through the driving component, so that a water column flowing down from the top of the evaporation type cooling fan can be separated from the air outlet and the electric structure, or the water column flows back to the water tank along the waterproof cloth, and the problem that water drops wet users or electric safety is caused when the wet curtain is leaked to install is avoided.
In order to realize automatic control, as shown in fig. 8, the evaporative cooling fan further comprises a control switch 9, when the evaporative cooling fan is provided with a wet curtain, the wet curtain triggers the control switch 9, the control switch 9 sends a signal to the driving assembly, namely, the control switch 9 is arranged at a position where the wet curtain can be pressed, after the wet curtain is arranged, the wet curtain can physically trigger the control switch 9, and optionally, the control switch 9 is fixed on the shell 8 through a buckle 10 as shown in the figure. Of course, the method for detecting whether the wet curtain is installed in the embodiment of the present application is not limited thereto, and may be implemented in other forms, which are not described in detail herein, but may be implemented with reference to the prior art.
The evaporative cooling fan in the embodiment of the application can control the protective device by the following control method, and specifically comprises the following steps:
firstly, detecting whether an evaporative cooling fan is provided with a wet curtain or not; this step may be implemented by the control switch 9 in the above embodiment, or may be implemented in other ways, and will be specifically described below by taking the control switch 9 as an example;
if the evaporation type cooling fan is not provided with the wet curtain, the control switch 9 is not triggered, the evaporation type cooling fan is started at the moment, the controller of the motor 3 does not receive signals of the control switch 9, the controller can control the motor 3 of the driving assembly to rotate positively, the mounting piece 4 moves linearly along the first rod body 1, the curtain cloth 2 slides out under the driving of the mounting piece 4, the curtain cloth 2 is opened, after the curtain cloth 2 is completely opened, the motor 3 stops rotating, a water column flowing down from the top of the evaporation type cooling fan can flow back to the water tank along the curtain cloth 2, and the situation that large water drops are wetted by the neglected loading of the wet curtain is avoided or the safety problem is avoided.
If the wet curtain is installed on the evaporative cooling fan, the control switch 9 is triggered, the evaporative cooling fan is started at the moment, the controller of the motor 3 receives signals of the control switch 9, the controller can control the motor 3 of the driving assembly to rotate reversely, the installation piece 4 moves linearly along the first rod body 1, the curtain cloth 2 is folded under the driving of the installation piece 4, and after the curtain cloth 2 is completely folded, the motor 3 stops rotating, so that the evaporative cooling fan can work normally.
The evaporative cooling fan disclosed by the embodiment of the application comprises the protecting device provided by the embodiment, so that the evaporative cooling fan with the protecting device also has all the technical effects, and the technical effects are not repeated herein. Other constructions and operation of evaporative cooling fans are known to those of ordinary skill in the art and will not be described in detail herein.
In this specification, some embodiments are described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and identical and similar parts between the embodiments are enough to refer to each other.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The evaporative cooling fan is characterized by comprising a protection device and a control switch (9), wherein the protection device comprises a first rod body (1), a curtain cloth (2) and a driving assembly, the first rod body (1) is used for being transversely arranged in a wet curtain installation area of the evaporative cooling fan, the first rod body (1) is fixed on a shell (8) of the evaporative cooling fan, and the first rod body (1) is positioned at one side, close to an air outlet, of a top water outlet of the evaporative cooling fan; the curtain cloth (2) is hung on the first rod body and can slide along the first rod body; the driving assembly is used for driving the curtain cloth (2) to slide along the first rod body (1) so as to enable the curtain cloth (2) to be unfolded or folded, when the curtain cloth (2) is in an unfolded state, the position of the curtain cloth is positioned between the water outlet and the main body of the evaporative cooling fan, and when the curtain cloth (2) is arranged to have a certain angle, the curtain cloth (2) is used for guiding water flow to a water tank below; when the evaporation type cooling fan is provided with a wet curtain, the wet curtain triggers the control switch (9), the control switch (9) sends a signal to the driving assembly, and the driving assembly drives the curtain cloth (2) to slide along the first rod body (1) and retract; when the evaporation type cooling fan is not provided with a wet curtain, the driving assembly drives the curtain cloth (2) to slide along the first rod body (1) and open.
2. An evaporative cooling fan according to claim 1, wherein the drive assembly comprises a motor (3), external threads (101) formed on the first lever body (1), a mounting member (4) screwed with the first lever body (1), and a rotation restricting member, the motor (3) drives the first lever body (1) to rotate, one end of the curtain cloth (2) is fixed on the mounting member (4), and the rotation restricting member is used for restricting the rotational freedom degree of the mounting member (4).
3. Evaporative cooling fan according to claim 2, characterized in that the rotation constraint comprises a slider (401) shaped on the mount (4) and a runner (5) for being provided on the evaporative cooling fan, the runner (5) being parallel to the first lever body (1) and the slider (401) being limited in sliding in the runner (5).
4. Evaporative cooling fan according to claim 2, characterized in that the mounting (4) is formed with hooks (402) for hanging the curtain (2).
5. Evaporative cooling fan according to claim 2, characterized in that the end of the output shaft of the motor (3) is formed with a projection (301), one end of the first rod body (1) is formed with a groove (102) matching with the projection (301), and the projection (301) is inserted into the groove (102).
6. Evaporative cooling fan according to claim 1, characterized in that it further comprises a second rod (6), the second rod (6) being arranged transversely to the wet curtain installation area of the evaporative cooling fan, the lower end of the curtain (2) being slidingly connected to the second rod (6).
7. Evaporative cooling fan according to claim 6, characterized in that the curtain (2) is mounted on the first (1) and second (6) pole bodies by means of lifting rings (7).
8. Evaporative cooling fan according to claim 1, characterized in that the control switch (9) is fixed to the housing (8) by means of a snap-in (10).
9. The control method of an evaporative cooling fan as claimed in any one of claims 1 to 8, comprising the steps of:
detecting whether the evaporative cooling fan is provided with a wet curtain or not;
if the evaporation type cooling fan is not provided with a wet curtain, the driving assembly drives the curtain to slide along the first rod body and expand when the evaporation type cooling fan is started;
if the evaporative cooling fan is provided with a wet curtain, when the evaporative cooling fan is started, the driving assembly drives the curtain to slide along the first rod body and fold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010066404.6A CN111140961B (en) | 2020-01-20 | 2020-01-20 | Protective device, evaporative cooling fan and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010066404.6A CN111140961B (en) | 2020-01-20 | 2020-01-20 | Protective device, evaporative cooling fan and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111140961A CN111140961A (en) | 2020-05-12 |
| CN111140961B true CN111140961B (en) | 2023-12-08 |
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| CN202010066404.6A Active CN111140961B (en) | 2020-01-20 | 2020-01-20 | Protective device, evaporative cooling fan and control method |
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| CN (1) | CN111140961B (en) |
Citations (32)
| Publication number | Priority date | Publication date | Assignee | Title |
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