A wet curtain leakage protection structure and tower cooling fan

Abstract

A wet curtain missing installation protection structure and a tower cooling fan, comprising: a rear shell and a wet curtain, the rear shell comprising a mounting groove, the wet curtain can be detachably mounted on the rear shell, and the wet curtain closes the open end of the mounting groove, and a water supply port for supplying water to the wet curtain is provided in the mounting groove; a water receiving trough is provided in the mounting groove, the water receiving trough is controlled by the movement of a driving mechanism, and the water receiving trough has a first state arranged close to the water supply port, and a second state arranged away from the water supply port; an induction switch is provided on the wet curtain and / or the rear shell, the induction switch is used to detect whether the wet curtain is installed, and the driving mechanism is controlled by the induction switch. As the cooling fan without the wet curtain installed works, water flowing out of the water supply port enters the water receiving trough. The water receiving trough collects the flowing water to prevent water from intruding into and inside the trough, and protects the operation of the cooling fan circuit from being affected. The degree of collision between the water flow and the water receiving trough is significantly reduced, and the noise of the cooling fan operation is significantly reduced.

Description

Technical Field

[0001] The invention relates to the technical field, and in particular to a wet curtain leakage protection structure and a tower cooling fan. Background Art

[0002] The evaporative cooling fans currently on the market all have a device at the air inlet that absorbs water, increases the contact area between water and air, and thus increases the evaporation capacity of the machine - a wet curtain. This device can also prevent water flowing down the water-dividing structure from being sucked into the fan. However, there is a problem with the wet curtain structure of existing cooling fans, that is, the fan can still be started without installing the wet curtain. However, if the cooling fan is in working condition at this time, the water flowing down after the cooling fan absorbs moisture will splash onto the motor, posing an electrical safety hazard; it will also generate a lot of noise. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that a cooling fan without a wet curtain is likely to cause electrical safety hazards, thereby providing a wet curtain missing protection structure and a tower cooling fan.

[0004] A wet curtain missing installation protection structure comprises: a rear shell and a wet curtain, the rear shell comprising a mounting groove, the wet curtain being detachably mounted on the rear shell, and the wet curtain closing the open end of the mounting groove, a water supply port for supplying water to the wet curtain being provided in the mounting groove; a water receiving trough, provided in the mounting groove, the water receiving trough being controlled by movement of a driving mechanism, the water receiving trough having a first state arranged close to the water supply port, and a second state arranged away from the water supply port; an induction switch, provided on the wet curtain and / or the rear shell, the induction switch being used to detect whether the wet curtain is installed, and the driving mechanism being controlled by the induction switch.

[0005] The rear shell includes: a reflux channel, which is arranged in the installation groove, one end of which is arranged toward the water supply port, and the other end is led to the bottom of the rear shell. The water receiving groove includes a drainage nozzle, and the drainage nozzle extends toward the reflux channel.

[0006] The cross-sectional area of ​​the reflux channel gradually decreases from one end close to the water supply port to the other end.

[0007] The reflux channel comprises a guide wall, and the guide wall is arc-shaped.

[0008] The guide wall is bent in a direction close to the side wall of the installation groove.

[0009] The water receiving trough comprises: a water baffle plate, which is arranged inclined toward the water supply port.

[0010] The water receiving groove is slidably connected to the side wall of the installation groove.

[0011] A guide groove is arranged on the side wall of the installation groove, and a guide block extends out of the water receiving groove toward the guide groove.

[0012] The driving mechanism comprises: a motor, which is arranged on the rear housing; and a strip transmission member, one end of which is connected to the output end of the motor and the other end is connected to the water receiving tank. A tower cooling fan comprises any of the above-mentioned wet curtain missing protection structures.

[0013] The technical solution of the present invention has the following advantages:

[0014] 1. The present invention provides a wet curtain missing installation protection structure, comprising: a rear shell and a wet curtain, the rear shell comprising a mounting groove, the wet curtain can be detachably mounted on the rear shell, and the wet curtain closes the open end of the mounting groove, and a water supply port for supplying water to the wet curtain is provided in the mounting groove; a water receiving trough, arranged in the mounting groove, the water receiving trough is controlled by the movement of a driving mechanism, the water receiving trough has a first state arranged close to the water supply port, and a second state arranged away from the water supply port; an induction switch, arranged on the wet curtain and / or the rear shell, the induction switch is used to detect whether the wet curtain is installed, and the driving mechanism is controlled by the induction switch.

[0015] The induction switch is used to sense whether the wet curtain is installed. When it is determined that the wet curtain is not installed, a signal is sent to the driving mechanism to control the driving mechanism to drive the water receiving trough to move to the first state close to the water supply port. At this time, since the wet curtain is not installed, when the cooling fan is working, the water flowing out of the water supply port enters the water receiving trough. The water receiving trough collects the outflowing water to prevent water from intruding into and inside, and protects the operation of the cooling fan circuit from being affected. At the same time, since the water receiving trough is located near the water supply port, when the water flow falls into the water receiving trough, compared with the high drop in the prior art, the gravitational potential energy of the water flow is less converted into kinetic energy, so the degree of collision between the water flow and the water receiving trough is significantly reduced, and the noise of the cooling fan operation is significantly reduced.

[0016] 2. The wet curtain missing installation protection structure provided by the present invention, the rear shell includes: a reflux channel, which is arranged in the installation groove, one end of which is arranged toward the water supply port, and the other end is led to the bottom of the rear shell, and the water receiving groove includes a drainage nozzle, and the drainage nozzle extends toward the reflux channel.

[0017] When the water receiving trough receives the water flowing out of the water supply port, since the volume of the water receiving trough itself is limited, in this solution, the water receiving trough guides the water flow into the reflux channel through the drainage nozzle through the coordination of the reflux channel and the drainage nozzle structure. During the operation of the cooling fan, a water tank is arranged under the rear shell. The water in the water tank is pumped into the water box of the upper shell, and then the water box transports the water to the wet curtain through the water supply port. In this solution, when the wet curtain is not installed, the water flowing out of the water supply port above the wet curtain will be pumped back to the water tank at the bottom of the rear shell through the reflux channel. In this embodiment, the reflux channel is composed of the side wall and the bottom surface of the installation groove.

[0018] 3. In the wet curtain missing protection structure provided by the present invention, the cross-sectional area of ​​the return channel gradually decreases from one end close to the water supply port to the other end.

[0019] When water falls, the return channel with a gradually decreasing cross-sectional area can block the water flow, slow down the water flow speed, and reduce the noise generated by the impact of the water flow.

[0020] 4. In the wet curtain missing protection structure provided by the present invention, the return channel includes a drainage wall, and the drainage wall is arc-shaped.

[0021] The curved drainage wall plays a role of buffering and drainage. When it is smooth, it can also provide a certain support force for the water flow, slow down the water flow speed, and reduce the noise caused by the impact of the water flow.

[0022] 5. In the wet curtain missing installation protection structure provided by the present invention, the drainage wall is bent in the direction close to the side wall of the installation groove.

[0023] The guide wall is bent toward the side wall of the installation groove, that is, bent toward the inside of the return channel, so as to obtain a shape in which the cross-sectional area gradually decreases from the top to the bottom of the rear shell.

[0024] 6. The wet curtain missing protection structure provided by the present invention, the water receiving trough includes: a water baffle, which is arranged inclined toward the water supply port.

[0025] The water flowing out of the water supply port directly contacts the water baffle, and the inclined water baffle can divert the water flow when it contacts the water flow, thereby playing a buffering and guiding role in guiding the water flow into the water receiving trough.

[0026] 7. In the wet curtain missing installation protection structure provided by the present invention, the water receiving trough is slidably connected to the side wall of the installation groove.

[0027] The slidingly connected installation groove can remain stable during the movement, and can ensure that when the installation groove switches from the second position to the first position, the opening of the installation groove faces the water supply port.

[0028] 8. In the wet curtain missing installation protection structure provided by the present invention, a guide groove is provided on the side wall of the installation groove, and a guide block extends from the water receiving groove toward the guide groove.

[0029] The guide groove and the guide block cooperate with each other to limit the sliding path of the installation groove, so that the installation groove can accurately slide to the preset first position and second position.

[0030] 9. The wet curtain missing protection structure provided by the present invention, the driving mechanism includes: a motor, which is arranged on the rear shell; a strip-shaped transmission member, one end of which is connected to the output end of the motor and the other end is connected to the water receiving trough.

[0031] The output end of the motor rotates to drive the strip transmission member to reel up, so as to pull the water receiving trough to rise to the first position. The output end of the motor rotates to drive the strip transmission member to unwind, so as to release the water receiving trough to descend to the second position.

[0032] 10. The present invention also provides a tower cooling fan, comprising the wet curtain missing protection structure of any of the above schemes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 An exploded view of the structure of the present invention;

[0035] Figure 2 is a schematic diagram of a water receiving tank in a first state;

[0036] Figure 3 is a schematic diagram of the water receiving tank in a second state;

[0037] Figure 4 A schematic diagram showing the coordination structure of the drainage nozzle and the reflux channel;

[0038] Figure 5 Schematic diagram of the driving mechanism structure.

[0039] Description of reference numerals:

[0040] 1. Rear shell; 11. Mounting groove; 12. Water supply port; 13. Return channel; 131. Drainage wall; 14. Guide groove; 2. Wet curtain; 3. Induction switch; 4. Water receiving trough; 41. Water baffle; 42. Guide block; 43. Drainage nozzle; 5. Motor; 51. Strip transmission member; 6. Upper shell; 61. Water box. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] Example 1

[0046] This embodiment provides a wet curtain missing protection structure, such as Figure 1 , Figure 2 , Figure 3As shown, it includes: a rear shell 1 and a wet curtain 2, the rear shell 1 includes a mounting groove 11, the wet curtain 2 is detachably mounted on the rear shell 1, and the wet curtain 2 closes the open end of the mounting groove 11, and the mounting groove 11 is provided with a water supply port 12 for supplying water to the wet curtain 2; a water receiving tank 4 is arranged in the mounting groove 11, the water receiving tank 4 is controlled by the movement of the driving mechanism, and the water receiving tank 4 has a first state arranged close to the water supply port 12, and a second state arranged away from the water supply port 12; a sensor switch 3 is arranged on the wet curtain 2 and / or the rear shell 1, the sensor switch 3 is used to detect whether the wet curtain 2 is installed, and the driving mechanism is controlled by the sensor switch 3. The sensor switch 3 is used to sense whether the wet curtain 2 is installed. When it is determined that the wet curtain 2 is not installed, a signal is sent to the driving mechanism to control the driving mechanism to drive the water receiving tank 4 to move to the first state close to the water supply port 12. At this time, since the wet curtain 2 is not installed, when the cold fan is working, the water flowing out of the water supply port 12 enters the water receiving tank 4. The water receiving tank 4 collects the outflowing water to prevent water from intruding into the interior of the water receiving tank 4, thereby protecting the operation of the cooling fan circuit from being affected. At the same time, since the water receiving tank 4 is located near the water supply port 12, when the water flows into the water receiving tank 4, compared with the high drop in the prior art, the gravitational potential energy of the water flow is less converted into kinetic energy, so the collision degree between the water flow and the water receiving tank 4 is significantly reduced, and the noise of the cooling fan operation is significantly reduced.

[0047] There is no specific restriction on the location of the induction switch 3. In this embodiment, Figure 1 , Figure 2 As shown, the induction switch 3 is arranged in the rear housing 1, specifically in the installation slot 11 of the rear housing 1. When the wet curtain 2 is buckled and installed in the installation slot 11, the induction switch 3 is triggered, so that the induction switch 3 determines that the wet curtain 2 has been installed, and sends a command to the motor 5, so that the motor 5 controls the water receiving tank 4 to descend to, as shown in FIG. Figure 3 The second position below the rear housing 1 is shown. At this time, the water flowing out of the water inlet 12 falls directly on the wet curtain 2, and the water diffuses from the top to the bottom of the wet curtain 2 to the entire wet curtain 2, thereby obtaining a larger evaporation area and improving the cooling effect of the cold fan. As an alternative embodiment, the induction switch 3 is arranged on the wet curtain 2.

[0048] The induction switch 3 includes an induction element. In this embodiment, Figure 1 , Figure 2 , the sensing element is a pressure sensor. The wet curtain 2 has a protrusion. When the wet curtain 2 is buckled on the installation groove 11, the protrusion contacts the pressure sensor, so that the pressure sensor determines that the wet curtain 2 is installed, otherwise it determines that the wet curtain 2 is not installed. As an alternative embodiment, the sensing element is a photosensitive sensor. When the wet curtain 2 is installed, it covers the front of the photosensitive part of the photosensitive sensor, making the environment around the photosensitive part dark, so as to determine that the wet curtain 2 is installed, otherwise it determines that the wet curtain 2 is not installed.

[0049] There is no specific limitation on the structure of the rear housing 1. In this embodiment, Figure 2 , Figure 4 As shown, the rear shell 1 includes: a reflux channel 13, which is arranged in the installation groove 11, one end of which is arranged toward the water supply port 12, and the other end is led to the bottom of the rear shell 1, and the water receiving tank 4 includes a drainage nozzle 43, and the drainage nozzle 43 extends toward the reflux channel 13. When the water receiving tank 4 receives the water flowing out of the water supply port 12, since the water receiving tank 4 itself has a limited volume, in this solution, the water receiving tank 4 introduces the water flow into the reflux channel 13 through the drainage nozzle 43 through the structural cooperation of the reflux channel 13 and the drainage nozzle 43. During the operation of the cooling fan, a water tank is arranged below the rear shell 1. The water in the water tank is drawn into the water box 61 of the upper shell 6, and then the water is transported to the wet curtain 2 through the water supply port 12 by the water box 61. In this solution, when the wet curtain 2 is not installed, the water drawn to the top of the wet curtain 2 and flowing out of the water supply port 12 is returned to the water tank at the bottom of the rear shell 1 through the reflux channel 13. In this embodiment, the reflux channel 13 is formed by the side wall and the bottom surface of the mounting groove 11 . As an alternative implementation, the reflux channel 13 is a water pipe independent of the rear housing 1 .

[0050] There is no specific limitation on the shape of the reflux channel 13. In this embodiment, Figure 2 , Figure 3 As shown, the cross-sectional area of ​​the return channel 13 gradually decreases from one end close to the water inlet 12 to the other end. When water falls, the return channel 13 with a gradually decreasing cross-sectional area can block the water flow, slow down the water flow speed, and reduce the noise generated by the impact of the water flow. As an alternative embodiment, the cross-sectional area of ​​the return channel 13 is the same everywhere.

[0051] There is no specific limitation on the structure of the reflux channel 13. In this embodiment, Figure 2 , Figure 3 As shown, the reflux channel 13 includes a drainage wall 131, and the drainage wall 131 is arc-shaped. The arc-shaped drainage wall 131 plays a role of buffering and drainage. When it is smooth, it can also provide a certain support force for the water flow, slow down the water flow speed, and reduce the noise generated by the impact of the water flow. As an alternative embodiment, the drainage wall 131 is a straight plate arranged obliquely.

[0052] There is no specific limitation on the curvature of the guide wall 131. Figure 2 , Figure 3 As shown, the curvature of the guide wall 131 gradually decreases in the direction close to the bottom of the rear housing 1. As an alternative embodiment, the curvature of the guide wall 131 gradually increases in the direction close to the bottom of the rear housing 1, or the curvature of the guide wall 131 remains unchanged.

[0053] In this embodiment, Figure 2 , Figure 3 As shown, the guide wall 131 is bent toward the side wall of the mounting groove 11. The guide wall 131 is bent toward the side wall of the mounting groove 11, that is, toward the inside of the return channel 13, so as to obtain a shape in which the cross-sectional area gradually decreases from the top to the bottom of the rear housing 1.

[0054] There is no specific limitation on the structure of the water receiving tank 4. In this embodiment, Figure 4 , Figure 5 As shown, the water receiving trough 4 includes: a water baffle 41, which is arranged obliquely toward the water supply port 12. The water flow out of the water supply port 12 is in direct contact with the water baffle 41. The obliquely arranged water baffle 41 can divert the water flow when it contacts the water flow, thereby playing a buffering and guiding role in the process of guiding the water flow into the water receiving trough 4. As an alternative embodiment, the water receiving trough 4 can also work normally without the water baffle 41. As another alternative embodiment, the water baffle 41 is arranged perpendicular to the bottom surface of the water receiving trough 4.

[0055] There is no specific restriction on the movement mode of the water receiving trough 4. In this embodiment, the water receiving trough 4 is slidably connected to the side wall of the mounting groove 11. The slidably connected mounting groove 11 can remain stable during the movement, and can ensure that when the mounting groove 11 switches from the second position to the first position, the opening of the mounting groove 11 faces the water supply port 12. As an interchangeable embodiment, the water receiving trough 4 is rotatably connected in the mounting groove 11.

[0056] Among them, Figure 4 , Figure 5 As shown, a guide groove 14 is provided on the side wall of the installation groove 11, and a guide block 42 extends from the water receiving groove 4 toward the guide groove 14. The guide groove 14 and the guide block 42 cooperate with each other to limit the sliding path of the installation groove 11, so that the installation groove 11 can accurately slide to the preset first position and second position.

[0057] In this embodiment, Figure 5 As shown, the driving mechanism includes: a motor 5, which is arranged on the rear housing 1; a strip transmission member 51, one end of which is connected to the output end of the motor 5, and the other end is connected to the water receiving tank 4. The output end of the motor 5 rotates to drive the strip transmission member 51 to reel, so as to pull the water receiving tank 4 up to the first position. The output end of the motor 5 rotates to drive the strip transmission member 51 to unwind, so as to release the water receiving tank 4 to descend to the second position.

[0058] In this embodiment, the wet curtain missing protection structure is implemented on a tower cooling fan. As a replaceable embodiment, it can also be applied to the wet curtain 2 missing structure of other cooling fans.

[0059] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A wet curtain missing protection structure, characterized in that: include: A rear shell (1) and a wet curtain (2), wherein the rear shell (1) comprises a mounting groove (11), the wet curtain (2) is detachably mounted on the rear shell (1), and the wet curtain (2) closes an open end of the mounting groove (11), and a water supply port (12) is provided in the mounting groove (11) for supplying water to the wet curtain (2); A water receiving trough (4) is arranged in the installation groove (11), the water receiving trough (4) is controlled by the driving mechanism to move, and the water receiving trough (4) has a first state of being arranged close to the water supply port (12), and a second state of being arranged away from the water supply port (12); The induction switch (3) is arranged on the wet curtain (2) and / or the rear housing (1), the induction switch (3) is used to detect whether the wet curtain (2) is installed, and the driving mechanism is controlled by the induction switch (3).

2. The wet curtain missing protection structure according to claim 1 is characterized in that: The rear housing (1) comprises: A reflux channel (13) is arranged in the installation groove (11), one end of which is arranged toward the water supply port (12) and the other end of which is led to the bottom of the rear shell (1); the water receiving groove (4) includes a drainage nozzle (43), and the drainage nozzle (43) extends toward the reflux channel (13).

3. The wet curtain missing protection structure according to claim 2 is characterized in that: The cross-sectional area of ​​the reflux channel (13) gradually decreases from one end close to the water supply port (12) to the other end.

4. The wet curtain missing protection structure according to claim 3 is characterized in that: The reflux channel (13) comprises a guide wall (131), and the guide wall (131) is arc-shaped.

5. The wet curtain missing protection structure according to claim 4 is characterized in that: The guide wall (131) is bent in a direction close to the side wall of the installation groove (11).

6. The wet curtain missing protection structure according to any one of claims 1 to 5, characterized in that: The water receiving tank (4) comprises: The water baffle (41) is arranged obliquely toward the water supply port (12).

7. The wet curtain missing protection structure according to claim 6, characterized in that: The water receiving groove (4) is slidably connected to the side wall of the installation groove (11).

8. The wet curtain missing protection structure according to claim 7, characterized in that: A guide groove (14) is provided on the side wall of the installation groove (11), and a guide block (42) extends from the water receiving groove (4) toward the guide groove (14).

9. The wet curtain missing protection structure according to claim 1, characterized in that: The driving mechanism comprises: A motor (5) is arranged on the rear housing (1); A strip-shaped transmission member (51) has one end connected to the output end of the motor (5) and the other end connected to the water receiving trough (4).

10. A tower cooling fan, characterized in that: It comprises the wet curtain missing protection structure as described in any one of claims 1-9.

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