CN111140961A - Protection device, evaporative cooling fan and control method - Google Patents
Protection device, evaporative cooling fan and control method Download PDFInfo
- Publication number
- CN111140961A CN111140961A CN202010066404.6A CN202010066404A CN111140961A CN 111140961 A CN111140961 A CN 111140961A CN 202010066404 A CN202010066404 A CN 202010066404A CN 111140961 A CN111140961 A CN 111140961A
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- cooling fan
- evaporative cooling
- curtain
- rod
- rod body
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- 238000001816 cooling Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000004744 fabric Substances 0.000 claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 230000001012 protector Effects 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 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
- 230000000694 effects Effects 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
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Images
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
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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
- 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 assembly. The first rod body is transversely arranged in a wet curtain mounting 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. When wet curtains are not installed, the curtain cloth is driven to stretch by the driving assembly, water columns flowing down from the top of the evaporative cooling fan can be separated from the air outlet and the electric structure, or the water columns flow back to the water tank along the waterproof cloth, so that the problem that water drops wet users or electrical safety is caused when the wet curtains are not installed is avoided.
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, and further relates to the evaporative cooling fan comprising the protection device and a control method of the evaporative cooling fan.
Background
The existing cooling fan is mostly in a wet curtain structure, the wet curtain plays a role in dispersing water flow, water pumped up by the water pump flows out from a water outlet at the top of the cooling fan and flows out through the wet curtain, a water column flowing out from the water outlet can increase the contact area with air, evaporation capacity is increased, and water columns form invisible water mist which is blown out along with wind from an air outlet. When a user detaches the wet curtain, and after the machine body and the wet curtain are cleaned, the user often forgets to install the wet curtain to start the water pump to use the humidifying function. The water column flowing down from the top of the evaporative cooling fan is not subjected to diffusion evaporation of the wet curtain, and is directly blown out from the air outlet of the cooling fan along with the wind, so that water drops are large, users blowing air are easily wetted, and the water drops can also cause electrical safety problems when dropping on electrical structures such as a motor.
Disclosure of Invention
In order to solve the technical problem, 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 under the condition that a wet curtain is forgotten to be installed, and potential safety hazards of the water drops to an electrical structure are reduced.
In order to achieve the above object, according to one aspect of the present technical solution, the present technical solution provides a protection device for an evaporative cooling fan.
A guard according to an embodiment of the application, it includes:
the first rod body is transversely arranged in a wet curtain mounting 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, drive assembly includes the motor, sets up external screw thread on the first body of rod, with the installed part of first body of rod spiro union and rotation restraint piece, motor drive the first body of rod rotates, the one end of curtain cloth is fixed on the installed part, it is used for the restriction to rotate restraint piece the rotational degree of freedom of installed part.
Furthermore, the rotation restriction piece comprises a sliding block formed on the mounting piece and a sliding groove used for being arranged on the evaporative cooling fan, and the sliding groove is parallel to the first rod body and is limited in the sliding groove in a sliding mode.
Further, a hook for hanging the curtain cloth is formed on the mounting piece.
Furthermore, a convex block is formed at the end part of the output shaft of the motor, a groove matched with the convex block is formed at one end of the first rod body, and the convex block is inserted into the groove.
Furthermore, 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 cloth is connected to the second rod body in a sliding mode.
Furthermore, the curtain cloth is installed on the first rod body and the second rod body through the hanging ring.
In order to achieve the above object, according to a second aspect of the present disclosure, an evaporative cooling fan is further provided.
According to the evaporation-type cooling fan of this application embodiment, its protector that includes this application first aspect provides, the first body of rod is fixed on evaporation-type cooling fan's casing, just the first body of rod is located one side that evaporation-type cooling fan's top delivery port is close to the air outlet.
Furthermore, 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 component.
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 invention, there is also provided a method for controlling an evaporative cooling fan according to the second aspect of the present application.
The control method of the evaporative cooling fan comprises the following steps:
detecting whether the evaporative cooling fan is provided with a wet curtain or not;
if the evaporative cooling fan is not provided with the wet curtain, the driving assembly drives the curtain cloth to slide along the first rod body and stretch when the evaporative cooling fan is started;
if the evaporative cooling fan is provided with the wet curtain, the driving assembly drives the curtain cloth to slide along the first rod body and fold when the evaporative cooling fan is started.
When the wet curtain is leaked, the curtain cloth is driven to open through the driving assembly, a water column flowing downwards from the top of the evaporative 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, so that the problem that water drops wet users or electrical safety is caused when the wet curtain is leaked is avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic structural reference diagram of a protection device provided by an embodiment of the application;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a schematic structural reference diagram of a first rod body according to an embodiment of the present application;
fig. 4 is a reference diagram schematically illustrating a motor structure provided by an embodiment of the present application;
fig. 5 is a reference diagram schematically illustrating a structure of a motor and a first rod body provided in an embodiment of the present application;
FIG. 6 is a schematic structural reference diagram of a mount provided by an embodiment of the present application;
fig. 7 is a reference diagram schematically illustrating a structure of the protection device provided by the embodiment of the present application, which is mounted on an evaporative cooling fan; and
fig. 8 is a partially 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. a clamp spring; 2. a cord fabric; 3. a motor; 301. a bump; 4. a mounting member; 401. a slider; 402. hooking; 403. a sleeve; 404. an internal thread; 5. a chute; 6. a second rod body; 7. a hoisting ring; 8. a housing; 9. a control switch; 10. and (5) buckling.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the above-described drawings are intended to cover non-exclusive inclusions, such that a system, product or apparatus that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
In this application, the terms "upper", "lower", "inner", "middle", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can 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 as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the working process of the evaporative cooling fan, water pumped up by the water pump flows out from the water outlet at the top of the cooling fan, and a water column flowing out from the water outlet flows through the wet curtain, so that the contact area with air can be increased, the evaporation capacity is increased, and the water column forms invisible water mist which is blown out from the air outlet along with wind. When the user is pulling down wet curtain, clean organism and wet curtain after, forget very easily and install wet curtain, open at this moment the thermantidote can lead to the water droplet to drench the user of blowing, still can produce the electrical safety problem. In order to solve the problem, the embodiment of the present application provides a protection device as shown in fig. 1 and 2, which is used for being mounted on an evaporative cooling fan, and comprises a first rod body 1, a curtain cloth 2 and a driving assembly, wherein the first rod body 1 is used for being transversely arranged on 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 the open state, the position of the curtain cloth is located between the water outlet and the cooling fan main body, so that large water drops can be prevented from being blown out from the air outlet, the water drops can be prevented from splashing on electric elements in the cooling fan main body, and potential safety hazards are reduced. When the curtain cloth is arranged at a certain angle, the water column flowing out of the water outlet can directly drop on the curtain cloth 2, and the curtain cloth 2 can play a role in drainage and drains water to the water tank below. The material of the curtain cloth 2 is not specifically limited, and all the curtain cloth can play a role in blocking and draining, and is preferably waterproof cloth.
In some embodiments, the driving assembly includes a motor 3, an external thread 101 formed on the first rod 1, a mounting member 4 screwed with the first rod 1, and a rotation restriction member, wherein the motor 3 drives the first rod 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 limiting the rotation degree of freedom of the mounting member 4. The first rod body is driven to rotate around the central axis by the motor 3, the mounting part 4 is in threaded connection with the first rod body 1 and limited by the rotation limiting part, the mounting part 4 can only move in the linear direction along the first rotating rod body 1 and cannot rotate, one end of the curtain cloth 2 is fixed on the mounting part 4, the curtain cloth 2 can be driven to be opened and closed by the reciprocating linear motion of the mounting part 4, as shown in figures 1 and 2, when the first rod body 1 drives the mounting part 4 to move from left to right, the curtain cloth 2 is gradually closed in an opening state, and when the first rod body 1 drives the mounting part 4 to move from right to left, the curtain cloth 2 is gradually opened from a closing state.
Specifically, as shown in fig. 3-5, a protrusion 301 is formed at an end of an output shaft of the motor 3, a groove 102 matched with the protrusion 301 is formed at one end of the first rod 1, the protrusion 301 is inserted into the groove 102, and the matching coupling between the protrusion 301 and the groove 102 can realize the power output of the motor 3, and is simple in structure and easy to assemble. In a specific using process, the first rod body may be installed at the top of a casing 8 (specifically, a rear casing) of the evaporative cooling fan, fixing holes are drilled at corresponding positions of the top of the casing, two ends of the first rod body 1 penetrate through the fixing holes, the motor 3 is also fixed on the casing, generally, the diameter of an opening on the casing 8 is 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, clamp springs 103 are installed at two ends of the first rod body 1, the diameter of each clamp spring 103 is larger than that of the opening on the casing 8, and the first rod body 1 can be limited in the axial direction.
As shown in fig. 6, a specific optional structure of the mounting member 4 is shown, as shown in the figure, the mounting member 4 includes a sleeve 403, a slider 401 and a hook 402, wherein an internal thread matching with the external thread on the first rod 1 is provided in the sleeve 403, so as to realize the screwing of the sleeve 403 and the first rod 1, the hook 402 is used for hanging the curtain 2, and the hook is used for facilitating the installation and the removal of the curtain 2. The sliding block 401 is used for being matched with a sliding groove 5 arranged on the evaporative cooling fan to form the rotation restraint part, 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 mode, so that rotation restraint of the mounting part 4 is achieved. The chute 5 can be a groove arranged between the two grooves on the shell 8, and can also be realized by two parallel cracks in the rib structure on the shell, and the concrete realization form can be various.
In some embodiments, as shown in fig. 1, the protection device further comprises a second rod 6, the second rod 6 is used for being transversely arranged at a wet curtain mounting area of the evaporative cooling fan, and the lower end of the curtain cloth 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, 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 curtain cloth 2 can be obliquely arranged through the dislocation arrangement of the first rod body 1 and the second rod body 6, specifically, in the using process, the first rod body 1 is located on one side, close to the air outlet, of the water outlet in the top of the evaporative cooling fan, the second rod body 6 is arranged on one side, far away from the air outlet, of the water outlet in the top of the evaporative cooling fan, the curtain cloth 2 can be located under the water outlet, the water outlet of the water outlet can be dripped on the curtain cloth 2, and therefore the curtain cloth 2 conducts drainage. Preferably, as shown in fig. 1 and 2, the curtain cloth 2 is mounted on the first rod 1 and the second rod 6 through a hanging ring 7, and the width of the hanging ring 7 is preferably greater than the pitch of the external thread on the first rod 1, so as to prevent the hanging ring 7 from being clamped between the threads, and to realize smooth sliding of the hanging ring 7. In addition, the second body of rod 6 preferably adopts elastic material, for example can slightly press the plastic of bending, can be through slightly pressing the second body of rod 6 when the installation, insert the corresponding trompil of casing 8 respectively with the both ends of the second body of rod 6 on, loosen the back, the second body of rod can be because elasticity reconversion, the card reaches fixed purpose on the trompil, the installation is dismantled conveniently.
It should be noted that other configurations and operations of the shielding device of the present application will be known to those skilled in the art, and reference may be made to the structure of the related devices in the prior art, which will not be described in detail herein.
The embodiment of the present application further provides an evaporative cooling fan, which includes the protection device provided by the above embodiment of the present application, as shown in fig. 7, the first rod body 1 is fixed on the casing 8 of the evaporative cooling fan, and the first rod body 1 is located on one side of the top water outlet of the evaporative cooling fan, which is close to the air outlet. When the wet curtain is not filled, the evaporative cooling fan drives the curtain cloth to open through the driving component, so that a water column flowing down from the top of the evaporative 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 not filled is avoided.
In order to realize automatic control, as shown in fig. 8, the evaporative cooling fan further includes 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, that is, the control switch 9 is installed at a position where the wet curtain can be pressed against, after the wet curtain is installed, the wet curtain physically triggers the control switch 9, and optionally, the control switch 9 is fixed on the housing 8 through a buckle 10 as shown in the figure. Of course, the manner of detecting whether the wet curtain is installed in the embodiment of the present application is not limited to this, and other implementation forms may also be used.
The evaporative cooling fan in the embodiment of the application can control the protection device by the following control method, and specifically comprises the following steps:
firstly, detecting whether a wet curtain is installed on an evaporative cooling fan; this step can be realized by the control switch 9 in the above embodiment, or other implementation manners, which will be specifically described below by taking the control switch 9 as an example;
if the evaporative cooling fan is not provided with the wet curtain, the control switch 9 cannot be triggered, the evaporative cooling fan is started at the moment, the controller of the motor 3 cannot receive a signal of the control switch 9, the controller can control the motor 3 of the driving assembly to rotate forwards, the mounting part 4 moves linearly along the first rod body 1, the curtain cloth 2 slides out under the driving of the mounting part 4, the curtain cloth 2 is opened, when the curtain cloth 2 is completely opened, the motor 3 stops rotating, water columns flowing downwards from the top of the evaporative cooling fan can flow back to the water tank along the curtain cloth 2, and the phenomenon that large water drops wet users or safety problems are caused due to the fact that the wet curtain is not installed is avoided.
If the evaporative cooling fan is provided with the wet curtain, the control switch 9 can be triggered, the evaporative cooling fan is started at the moment, the controller of the motor 3 can receive a signal of the control switch 9, the controller can control the motor 3 of the driving assembly to rotate reversely, the mounting piece 4 moves linearly along the first rod body 1, the curtain cloth 2 is drawn under the driving of the mounting piece 4, after the curtain cloth 2 is completely drawn, the motor 3 stops rotating, and the evaporative cooling fan can work normally.
The disclosed evaporative cooling fan of this application embodiment is owing to including the protector that above-mentioned embodiment provided, consequently has this protector's evaporative cooling fan also to have above-mentioned all technological effects, no longer gives unnecessary details here. Other constructions and operation of the evaporative cooling fan will be known to those skilled in the art and will not be described in detail herein.
Some embodiments in this specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. 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 invention. Thus, the present invention 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 (11)
1. A protector for an evaporative cooling fan, the protector comprising:
the first rod body (1) is transversely arranged in 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; and
the driving assembly 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).
2. Guard according to claim 1, characterized in that the drive assembly comprises an electric motor (3), an external thread (101) formed on the first rod (1), a mounting element (4) screwed to the first rod (1), the electric motor (3) driving the first rod (1) in rotation, one end of the curtain (2) being fixed to the mounting element (4), and a rotation constraint for limiting the freedom of rotation of the mounting element (4).
3. The protection device according to claim 2, characterized in that said rotation restraint means comprise a sliding block (401) formed on said mounting member (4) and a sliding slot (5) for being arranged on an evaporative cooling fan, said sliding slot (5) being parallel to said first rod (1) and said sliding block (401) being slidably retained in said sliding slot (5).
4. Guard according to claim 2, characterized in that the mounting (4) is formed with a hook (402) for hanging the curtain (2).
5. The protection device according to claim 2, characterized in that a projection (301) is formed at the end of the output shaft of the motor (3), a groove (102) matched with the projection (301) is formed at one end of the first rod body (1), and the projection (301) is inserted into the groove (102).
6. The protection device according to claim 1, further comprising a second rod (6), wherein the second rod (6) is used for being transversely arranged at a wet curtain mounting area of the evaporative cooling fan, and the lower end of the curtain cloth (2) is slidably connected to the second rod (6).
7. Guard according to claim 6, characterized in that the curtain (2) is mounted on the first (1) and second (6) rods by means of a suspension ring (7).
8. An evaporative cooling fan, characterized by comprising the protective device according to any one of claims 1 to 7, wherein the first rod (1) is fixed on the casing (8) of the evaporative cooling fan, and the first rod (1) is positioned at one side of the top water outlet of the evaporative cooling fan, which is close to the air outlet.
9. Evaporative cooling fan according to claim 8, further comprising a control switch (9), wherein when the evaporative cooling fan is fitted with a wet curtain, the wet curtain triggers the control switch (9), and the control switch (9) sends a signal to the driving assembly.
10. Evaporative cooling fan according to claim 9, characterised in that the control switch (9) is fixed to the housing (8) by means of a snap (10).
11. The method for controlling an evaporative cooling fan according to any one of claims 8 to 10, comprising the steps of:
detecting whether the evaporative cooling fan is provided with a wet curtain or not;
if the evaporative cooling fan is not provided with the wet curtain, the driving assembly drives the curtain cloth to slide along the first rod body and stretch when the evaporative cooling fan is started;
if the evaporative cooling fan is provided with the wet curtain, the driving assembly drives the curtain cloth to slide along the first rod body and fold when the evaporative cooling fan is started.
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 true CN111140961A (en) | 2020-05-12 |
| CN111140961B CN111140961B (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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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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