Evaporative air cooler

Abstract

The present invention relates to the technical field of household appliances, and particularly relates to an evaporative air cooler, which includes: a bracket provided with a receiving cavity adapted to assemble a wet curtain; a water distribution structure disposed on the bracket and located above the receiving cavity; a water outlet hole disposed at the bottom of the water distribution structure; a water blocking structure movably disposed on the water distribution structure, and the water blocking structure has a sealed state of blocking the water outlet hole when no wet curtain is assembled in the receiving cavity under the action of an external force; and a water outlet state of opening the water outlet hole when a wet curtain is assembled in the receiving cavity. By movably disposing the water blocking structure on the water distribution structure, when the user does not need air at a lower temperature or forgets to install the wet curtain in the receiving cavity, the water blocking structure blocks the water outlet hole under the action of an external force, so that the water discharged from the water distribution structure does not flow into the receiving cavity, preventing water from splashing inside the evaporative air cooler when no wet curtain is assembled, avoiding potential safety hazards when water splashes onto electrical components, and improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly to an evaporative air cooler. Background Art

[0002] The working principle of an evaporative air cooler is that a wet curtain is installed at the air inlet of the evaporative air cooler, a water distribution structure is arranged above the wet curtain, the bottom of the water distribution structure has water outlet holes, water is conveyed to the wet curtain through the water outlet holes, the wet curtain can absorb water, increasing the contact area between water and air, thereby increasing the evaporation amount of the water on the wet curtain and reducing the temperature of the air entering from the air inlet, so as to achieve the purpose of delivering relatively cold air to the surrounding environment.

[0003] However, since the wet curtain is an additional functional component, when the user disassembles it during maintenance, even if the user forgets to install the wet curtain, or when the user does not need relatively cold air and does not want to install the wet curtain, the fan of the evaporative air cooler can still work and send air to the surrounding environment. However, since the water distribution structure still supplies water to the position where the wet curtain is located after the wet curtain is removed, there is no component in the evaporative air cooler that can absorb water, and the dripping water splashes in the evaporative air cooler and will splash onto other electrical components, creating an electrical safety hazard. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that there is an electrical safety hazard in the existing evaporative air cooler when the wet curtain is not installed, so as to provide an evaporative air cooler that can still avoid electrical safety hazards when the wet curtain is not installed.

[0005] An evaporative air cooler includes:

[0006] A bracket, on which there is a receiving cavity, and the receiving cavity is suitable for assembling a wet curtain;

[0007] A water distribution structure, arranged on the bracket and located above the receiving cavity;

[0008] Water outlet holes, arranged at the bottom of the water distribution structure;

[0009] A water blocking structure, movably arranged on the water distribution structure, and the water blocking structure has a sealed state of blocking the water outlet holes when no wet curtain is assembled in the receiving cavity under the action of an external force; and a water outlet state of opening the water outlet holes when the wet curtain is assembled in the receiving cavity.

[0010] It further includes:

[0011] A power device, fixedly connected to the water distribution structure or the bracket, and the power device is connected to the water blocking structure and is suitable for driving the water blocking structure to move relative to the water outlet holes.

[0012] It further includes:

[0013] The mounting plate is fixedly connected to the water distribution structure or the bracket, and the power device is fixedly connected to the mounting plate.

[0014] The mounting plate covers the upper part of the water distribution structure.

[0015] The mounting plate is provided with a first mounting through hole. The power device is arranged on the side of the mounting plate away from the water distribution structure, and the output shaft of the power device passes through the first mounting through hole to the side of the mounting plate close to the water distribution structure and is fixedly connected to the water blocking structure.

[0016] It further includes a sealing device arranged between the first mounting through hole and the output shaft.

[0017] The water blocking structure includes:

[0018] A mounting part, one end of the mounting part is fixedly connected to the output shaft of the power device;

[0019] A shielding part, connected to the other end of the mounting part, and the shielding part is adapted to shield or open the water outlet hole under the drive of the power device.

[0020] The water blocking structure further includes:

[0021] A connecting part, arranged between the mounting part and the shielding part, and is arranged at an angle with the mounting part and the shielding part.

[0022] It further includes:

[0023] An elastic member, fixedly connected to the side of the shielding part close to the water outlet hole.

[0024] The water distribution structure includes a water distribution cavity, and a water outlet hole is provided at the bottom of the water distribution cavity;

[0025] The water distribution structure further includes:

[0026] A baffle rib, extending upward from the bottom of the water distribution cavity, and the height of the baffle rib is less than the cavity wall of the water distribution cavity. A water outlet hole is provided on one side of the baffle rib;

[0027] An overflow hole, provided at the bottom of the water distribution cavity, located on the other side of the baffle rib, and is adapted to drain water out of the bracket.

[0028] It further includes: a sensing device, arranged on the bracket, and is adapted to sense whether the wet curtain is assembled on the accommodation cavity.

[0029] The sensing device is a photoelectric sensing switch.

[0030] It further includes:

[0031] A controller, connected to the induction device and the power device, is adapted to control the power device to drive the water blocking structure to move to the sealed state when the induction device senses that the wet curtain is not assembled on the accommodation cavity.

[0032] The water blocking structure is rotatably connected to the water distribution structure.

[0033] The technical solution of the present invention has the following advantages:

[0034] 1. In the evaporative air cooler provided by the present invention, by movably arranging the water blocking structure on the water distribution structure, when the user needs air at a lower temperature and the wet curtain is working, the wet curtain is arranged in the accommodation cavity, and the water blocking structure opens the water outlet holes under the action of an external force, so that the water of the water distribution structure can flow through the water outlet holes to the wet curtain, and the wet curtain cools the air and then supplies it to the user; when the user does not need air at a lower temperature or forgets to install the wet curtain in the accommodation cavity, the water blocking structure blocks the water outlet holes under the action of an external force, so that the water output of the water distribution structure will not flow into the accommodation cavity, preventing water from splashing inside the evaporative air cooler when the wet curtain is not assembled, avoiding potential safety hazards when water splashes onto electrical components, and at the same time, preventing the problem of relatively loud noise caused by water splashing inside the evaporative air cooler, thus improving the user experience.

[0035] 2. In the evaporative air cooler provided by the present invention, by fixedly connecting the power device to the water distribution structure or the bracket, and the power device drives the water blocking structure to move, when an external force is required to act on the water blocking structure to drive its movement, the user does not need to manually operate, resulting in a better user experience.

[0036] 3. In the evaporative air cooler provided by the present invention, by providing the mounting plate, the setting of the power device is more flexible and can be installed according to actual needs.

[0037] 4. In the evaporative air cooler provided by the present invention, by covering the mounting plate above the water distribution structure, the power device can be relatively close to the water blocking structure, and the selection and installation of the power device are more convenient, preventing difficulties in selecting the power device when the distance between the power device and the water blocking structure is relatively far.

[0038] 5. In the evaporative air cooler provided by the present invention, by arranging the power device on the side of the mounting plate away from the water distribution structure, and the output shaft of the power device passes through the mounting plate and is fixedly connected to the water blocking structure, when the power device can drive the water blocking structure to move, it is also far away from the water of the water distribution structure, which can preferably prevent water from contacting the power device and causing potential safety hazards.

[0039] 6. The evaporative air cooler provided by the present invention has a good sealing effect between the mounting plate and the output shaft by arranging a sealing device between the first mounting through hole of the mounting plate and the output shaft of the power device, avoiding water seeping into the interior of the power device through the gap between the first mounting through hole and the power device, and causing damage to the power device.

[0040] 7. The evaporative air cooler provided by the present invention has a convenient connection between the water blocking structure and the power device by setting the water blocking structure to include a mounting portion and a shielding portion. The shielding portion can conveniently shield or open the water outlet hole driven by the power device, and the structure is relatively simple.

[0041] 8. The evaporative air cooler provided by the present invention has a certain height difference between the mounting portion and the shielding portion by arranging a connecting portion on the water blocking structure, so that the connecting end of the water blocking structure and the power device is far from the water outlet hole. Furthermore, the power device can be kept away from the water in the water distribution structure, preventing water from contacting the power device and causing potential safety hazards.

[0042] 9. The evaporative air cooler provided by the present invention has an elastic member fixedly connected to the lower end of the shielding portion of the water blocking structure, so that when the shielding portion shields the water outlet hole, the elastic member can completely fill the gap between the water outlet hole and the shielding portion by its own deformation, enhancing the sealing effect and preventing water leakage.

[0043] 10. The evaporative air cooler provided by the present invention has a water retaining rib arranged on the water distribution structure, and the water outlet hole and the water overflow hole are respectively arranged on both sides of the water retaining rib. When the water blocking structure blocks the water outlet hole, water can overflow over the water retaining rib and be discharged outside the bracket through the water overflow hole, preventing water from accumulating too much in the water distribution cavity and splashing into the interior of the evaporative air cooler, causing potential safety hazards.

[0044] 11. The evaporative air cooler provided by the present invention can automatically sense whether the wet curtain is assembled on the accommodating cavity by arranging an induction device on the bracket, improving the user experience.

[0045] 12. The evaporative air cooler provided by the present invention has a controller connected to the induction device and the power device. When the induction device senses that the wet curtain is not assembled on the accommodating cavity, it can automatically control the power device to drive the water blocking structure to move to the sealed state, that is, the induction action of whether the wet curtain is assembled on the accommodating cavity and the moving action of the water receiving device can all be realized automatically. The user does not need any manual operation, achieving full automation and greatly improving the user experience. Description of the Drawings

[0046] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0047] Figure 1 Structural schematic diagram of one side of the bracket of the evaporative cooling fan of the present invention;

[0048] Figure 2 Structural schematic diagram of the other side of the bracket of the evaporative cooling fan of the present invention;

[0049] Figure 3 Enlarged view of a part of the structure of the evaporative cooling fan of the present invention;

[0050] Figure 4 Structural schematic diagram of the water retaining structure of the present invention;

[0051] Figure 5 Enlarged view of the water distribution structure of the evaporative cooling fan of the present invention;

[0052] Figure 6 Cross-sectional view of a part of the structure of the evaporative cooling fan of the present invention;

[0053] Figure 7 Cross-sectional view of a part of the structure of the evaporative cooling fan when the water retaining structure is in a sealed state;

[0054] Figure 8 Cross-sectional view of a part of the structure of the evaporative cooling fan when the water retaining structure is in a water outlet state;

[0055] Explanation of reference numerals:

[0056] 1 - Bracket; 2 - Wet curtain; 3 - Water distribution cavity; 4 - Water outlet hole; 5 - Water retaining structure; 6 - Motor; 7 - Mounting plate; 8 - First mounting through hole; 9 - Sealing ring; 10 - Mounting part; 11 - Shielding part; 12 - Connecting part; 13 - Rubber pad; 14 - Baffle rib; 15 - Overflow hole; 16 - Photoelectric induction switch; 17 - Second mounting through hole; 18 - Output shaft. Specific embodiments

[0057] The following will clearly and completely describe the technical solutions of the present invention with reference to the drawings. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0058] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0059] As Figure 1 - Figure 8 shown, in this embodiment, an evaporative air cooler is provided, including: a bracket 1, a water distribution structure, a water outlet hole 4, and a water blocking structure 5.

[0060] A receiving cavity is provided on the bracket 1, and a wet curtain 2 is adapted to be assembled in the receiving cavity; the water distribution structure is provided on the bracket 1 and is located above the receiving cavity; the water outlet hole 4 is provided at the bottom of the water distribution structure; the water blocking structure 5 is movably provided on the water distribution structure, and the water blocking structure 5 has a sealed state of blocking the water outlet hole 4 when the wet curtain 2 is not assembled in the receiving cavity under the action of an external force; and a water outlet state of opening the water outlet hole 4 when the wet curtain 2 is assembled in the receiving cavity.

[0061] By movably arranging the water blocking structure 5 on the water distribution structure, when the user needs air at a lower temperature and the wet curtain 2 is working, the wet curtain 2 is arranged in the receiving cavity, and the water blocking structure 5 opens the water outlet hole 4 under the action of an external force, so that the water of the water distribution structure can flow through the water outlet hole 4 to the wet curtain 2, and the wet curtain 2 cools the air and then supplies it to the user; when the user does not need air at a lower temperature or forgets to install the wet curtain 2 in the receiving cavity, the water blocking structure 5 blocks the water outlet hole 4 under the action of an external force, so that the water outlet of the water distribution structure does not flow into the receiving cavity, preventing water from splashing inside the evaporative air cooler when the wet curtain 2 is not assembled, avoiding potential safety hazards when water splashes onto electrical components, and at the same time, preventing the problem of relatively loud noise caused by water splashing inside the evaporative air cooler, thus improving the user experience.

[0062] The evaporative air cooler in this embodiment further includes: a power device, fixedly connected to the water distribution structure, and the power device is connected to the water blocking structure 5 and is adapted to drive the water blocking structure 5 to move relative to the water outlet hole 4. By fixedly connecting the power device to the water distribution structure or the bracket 1 and the power device driving the water blocking structure 5 to move, when an external force needs to act on the water blocking structure 5 to drive its movement, the user does not need to manually operate, resulting in a better user experience. As an alternative embodiment, it may also be that the power device is fixedly connected to the bracket 1. As an alternative embodiment, it may also be that no power device is provided and the user manually drives the water blocking structure 5 to move.

[0063] Specifically, the power device in this embodiment is a motor 6. The water blocking structure 5 rotates relative to the water outlet hole 4 driven by the motor 6 to realize the transformation between the sealed state and the water outlet state. As an alternative implementation, it can also be that the motor 6 is a linear motor, and the water blocking structure 5 translates horizontally relative to the water outlet hole 4 driven by the linear motor, that is, the sealed state and the water outlet state are transformed by sliding; or, a driving gear is provided on the motor, and a rack is provided on the water blocking structure 5, and the motor drives the driving gear to rotate, thereby driving the rack to approach or move away from the water outlet hole.

[0064] The evaporative cooling fan in this embodiment further includes: a mounting plate 7 fixedly connected to the water distribution structure, and a motor 6 is fixedly connected to the mounting plate 7. By providing the mounting plate 7, the setting of the motor 6 is more flexible and can be installed according to actual needs. As an alternative implementation, it can also be that the mounting plate 7 is not provided, but the motor 6 is directly fixedly connected to the water distribution structure or the bracket 1.

[0065] Among them, as Figure 3 shown, the mounting plate 7 in this embodiment covers the upper part of the water distribution structure. By covering the upper part of the water distribution structure with the mounting plate 7, the motor 6 can be relatively close to the water blocking structure 5, and the selection and installation of the motor 6 are more convenient, preventing the motor 6 from being difficult to select when the distance between the motor 6 and the water blocking structure 5 is relatively far. As an alternative implementation, it can also be that the mounting plate 7 is fixedly connected to the water distribution structure or the bracket 1 in other ways. When the mounting plate 7 is far from the water blocking structure 5, a motor 6 with a longer output shaft 18 needs to be selected.

[0066] The mounting plate 7 in this embodiment is provided with a first mounting through hole 8. The motor 6 is arranged on the side of the mounting plate 7 away from the water distribution structure, and the output shaft 18 of the motor 6 passes through the first mounting through hole 8 to the side of the mounting plate 7 close to the water distribution structure and is fixedly connected to the water blocking structure 5. By arranging the motor 6 on the side of the mounting plate 7 away from the water distribution structure and fixedly connecting the output shaft 18 of the motor 6 to the water blocking structure 5 after passing through the mounting plate 7, when the motor 6 can drive the water blocking structure 5 to move, it is far from the water of the water distribution structure, which can better prevent water from contacting the motor 6 and causing potential safety hazards.

[0067] To improve the sealing effect, as Figure 6As shown in the figure, the evaporative air cooler in this embodiment further includes a sealing device disposed between the first mounting through hole 8 and the output shaft 18. Specifically, the sealing device in this embodiment is an O-ring 9, and the O-ring 9 and the output shaft 18 of the motor 6 are firmly fixed and connected in an interference fit manner. By providing a sealing device between the first mounting through hole 8 of the mounting plate 7 and the output shaft 18 of the motor 6, the sealing effect between the mounting plate 7 and the output shaft 18 is better, preventing water from penetrating into the interior of the motor 6 through the gap between the first mounting through hole 8 and the motor 6 and causing damage to the motor 6. As an alternative implementation, it is also possible that the O-ring 9 is snap-fitted with the output shaft 18 of the motor 6 or fixed and connected in other ways.

[0068] As Figure 4 shown in the figure, the water blocking structure 5 in this embodiment includes: a mounting portion 10, one end of the mounting portion 10 is fixedly connected to the output shaft 18 of the motor 6; a shielding portion 11, connected to the other end of the mounting portion 10, and the shielding portion 11 is adapted to shield or open the water outlet hole 4 under the drive of the motor 6. By setting the water blocking structure 5 to include the mounting portion 10 and the shielding portion 11, the connection between the water blocking structure 5 and the motor 6 is more convenient, and the shielding portion 11 can easily shield or open the water outlet hole 4 under the drive of the motor 6, and the structure is relatively simple. Specifically, a second mounting through hole 17 opposite to the first mounting through hole 8 is provided on the mounting portion 10 in this embodiment, and the output shaft 18 of the motor passes through the first mounting through hole 8 and the second mounting through hole 17 and is locked to the mounting portion 10 by screws, making the cooperation between the mounting portion 10 and the motor 6 more firm. Of course, it is also possible to fix and connect the mounting portion 10 and the output shaft 18 in other ways, which will not be elaborated here.

[0069] The water blocking structure 5 in this embodiment further includes: a connecting portion 12, disposed between the mounting portion 10 and the shielding portion 11 and disposed at an angle with the mounting portion 10 and the shielding portion 11. By providing the connecting portion 12 on the water blocking structure 5, a certain height difference can be formed between the mounting portion 10 and the shielding portion 11, so that the connection end of the water blocking structure 5 and the motor 6 is farther away from the water outlet hole 4, and further the motor 6 can be kept away from the water in the water distribution structure, preventing water from contacting the motor 6 and causing potential safety hazards. As an alternative implementation, it is also possible that the water blocking structure 5 does not have the connecting portion 12.

[0070] Since the materials of the shielding part 11 and the water diversion structure are both rigid, in order to enhance the sealing effect of the water blocking structure 5 in the sealed state, the water blocking structure 5 in this embodiment further includes: an elastic member fixedly connected to the side of the shielding part 11 close to the water outlet hole 4. Specifically, the elastic member is a rubber pad 13. By fixedly connecting the elastic member to the lower end of the shielding part 11 of the water blocking structure 5, when the shielding part 11 blocks the water outlet hole 4, the elastic member can use its own deformation to completely fill the gap between the water outlet hole 4 and the shielding part 11, enhancing the sealing effect and preventing water leakage.

[0071] As Figure 5 shown, the water diversion structure in this embodiment includes a water diversion cavity 3, and a water outlet hole 4 is provided at the bottom of the water diversion cavity 3; the water diversion structure further includes: a retaining rib 14 extending upward from the bottom of the water diversion cavity 3, and the height of the retaining rib 14 is less than the cavity wall of the water diversion cavity 3, and a water outlet hole 4 is provided on one side of the retaining rib 14; a water overflow hole 15 is provided at the bottom of the water diversion cavity 3, on the other side of the retaining rib 14, and is adapted to drain water out of the bracket 1. Specifically, the water drained from the water overflow hole 15 can be directly conveyed to the water tank of the evaporative cooling fan and used as the water source for re - supply in a cycle. By providing the retaining rib 14 on the water diversion structure, with the water outlet hole 4 and the water overflow hole 15 respectively provided on both sides of the retaining rib 14, when the water blocking structure 5 blocks the water outlet hole 4, the water can overflow over the retaining rib 14 and be drained out of the bracket 1 through the water overflow hole 15, preventing the water from accumulating too much in the water diversion cavity 3 and splashing into the interior of the evaporative cooling fan, causing potential safety hazards. As an alternative embodiment, it can also be that the water drained from the water overflow hole 15 is directly discharged to the outside of the evaporative cooling fan.

[0072] The water outlet hole 4 at the bottom of the water diversion cavity 3 in this embodiment is one, and a water blocking structure 5 is provided thereon. The water blocking structure 5 rotates relative to the water outlet hole 4 to enable the water outlet hole 4 to discharge water downward or not to discharge water downward. As an alternative embodiment, it can also be that there are multiple water outlet holes 4, arranged at intervals in a row at the bottom of the water diversion cavity 3. The motor 6 is provided on one side of the water diversion structure, and the mounting part 10 is correspondingly provided on one side of the water diversion structure. The shielding part 11 of the water blocking structure 5 is strip - shaped and extends to the other side of the water diversion structure. One motor 6 drives one water blocking structure 5 to rotate, and simultaneously controls multiple water outlet holes 4 to open or close; or, a water blocking structure 5 and a motor 6 are provided on each water outlet hole 4, and each water outlet hole 4 is controlled separately.

[0073] The evaporative cooling fan in this embodiment further includes: a sensing device provided on the bracket 1 and adapted to sense whether the wet curtain 2 is assembled on the accommodating cavity. By providing the sensing device on the bracket 1, it can automatically sense whether the wet curtain 2 is assembled on the accommodating cavity, improving the user experience. As an alternative embodiment, it can also be that no sensing device is provided.

[0074] The induction device in this embodiment is a photoelectric induction switch 16, which includes a photoelectric generator and a photoelectric receiver, respectively arranged on the inner walls on both sides of the accommodation cavity. When the wet curtain 2 is not assembled in the accommodation cavity, the light emitted by the photoelectric generator on one side of the accommodation cavity can be received by the photoelectric receiver on the other side, thereby sending out a signal that the wet curtain 2 is not assembled in the accommodation cavity; when the wet curtain 2 is assembled in the accommodation cavity, the light emitted by the photoelectric generator on one side of the accommodation cavity cannot be received by the photoelectric receiver on the other side, thereby sending out a signal that the wet curtain 2 is assembled in the accommodation cavity. As an alternative implementation, the induction device can also be a squeeze-type induction switch, which is arranged on the inner wall of the accommodation cavity. When the wet curtain 2 is assembled into the accommodation cavity, a squeezing force is applied to the squeeze-type induction switch, and the squeeze-type induction switch is open-circuited. When the wet curtain 2 is not assembled into the accommodation cavity, there is no squeezing force on the squeeze-type induction switch, and the squeeze-type induction switch is in a conducting state.

[0075] The evaporative air cooler in this embodiment further includes: a controller, which is connected to the induction device and the motor 6, and is adapted to control the motor 6 to drive the water-blocking structure 5 to move to a sealed state when the induction device senses that the wet curtain 2 is not assembled on the accommodation cavity. By setting a controller connected to the induction device and the motor 6, when the induction device senses that the wet curtain 2 is not assembled on the accommodation cavity, it can automatically control the motor 6 to drive the water-blocking structure 5 to move to a sealed state, that is, the induction action of whether the wet curtain 2 is assembled on the accommodation cavity and the moving action of the water-receiving device can all be realized automatically. The user does not need any manual operation, achieving full automation and greatly improving the user experience. As an alternative implementation, it can also be that no controller is set, and the user manually controls it.

[0076] When the evaporative air cooler is working, as Figure 7 shown, when the photoelectric induction switch 16 senses that the wet curtain 2 is not assembled in the accommodation cavity, the controller drives the motor 6 to rotate, and then drives the water-blocking structure 5 to rotate. The shielding part 11 rotates above the water outlet hole 4, forcing the rubber pad 13 to deform and press tightly against the water outlet hole 4, thereby achieving the effect of sealing the water outlet hole 4 and preventing water from flowing downward. Since water no longer flows down from the water outlet hole 4 at this time, there is no water flow or water droplets at the air inlet of the evaporative air cooler, preventing the sound and splashing caused by water dripping from a height, and preventing water from being sucked into the fan of the evaporative air cooler, causing electrical safety hazards; at the same time, since water continues to be supplied into the water distribution cavity 3, the water level in the water distribution cavity 3 rises. After it is higher than the water retaining rib 14, the water flows back into the water tank from the overflow hole 15, avoiding the safety hazard caused by the water level being too high and overflowing to other places.

[0077] When the evaporative air cooler is working, as Figure 8As shown, when the photoelectric induction switch 16 senses that the wet curtain 2 is assembled in the accommodating cavity, the controller drives the motor 6 to rotate, thereby driving the water blocking structure 5 to rotate. The shielding portion 11 rotates to one side of the water outlet hole 4, opening the water outlet hole 4. Water can flow from the water outlet hole 4 to the wet curtain 2 to wet the wet curtain 2. After the fan of the evaporative cooling fan starts, the moisture evaporates from the wet curtain 2, realizing the function of humidifying and cooling.

[0078] Obviously, the above embodiments are merely examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or alterations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or alterations derived therefrom are still within the protection scope of the present invention.

Claims

1. An evaporative air cooler, characterized in that , comprising: a bracket (1) provided with a receiving cavity therein, and a wet curtain (2) is adapted to be assembled in the receiving cavity; a water distribution structure provided on the bracket (1) and located above the receiving cavity; a water outlet hole (4) provided at the bottom of the water distribution structure; a water blocking structure (5) movably arranged on the water distribution structure, and the water blocking structure (5) has a sealed state of blocking the water outlet hole (4) when the wet curtain (2) is not assembled in the receiving cavity under the action of an external force; and a water outlet state of opening the water outlet hole (4) when the wet curtain (2) is assembled in the receiving cavity; a power device fixedly connected to the water distribution structure or the bracket (1), and the power device is connected to the water blocking structure (5) and is adapted to drive the water blocking structure (5) to move relative to the water outlet hole (4); the water blocking structure (5) comprises: a mounting portion (10), one end of the mounting portion (10) is fixedly connected to the output shaft (18) of the power device; a shielding portion (11) connected to the other end of the mounting portion (10), and the shielding portion (11) is adapted to shield the water outlet hole (4) or open the water outlet hole (4) under the drive of the power device; a connecting portion (12) provided between the mounting portion (10) and the shielding portion (11) and arranged at an angle with the mounting portion (10) and the shielding portion (11).

2. The evaporative air cooler according to claim 1, characterized in that , further comprising: a mounting plate (7) fixedly connected to the water distribution structure or the bracket (1), and the power device is fixedly connected to the mounting plate (7).

3. The evaporative air cooler according to claim 2, characterized in that the mounting plate (7) covers the upper part of the water distribution structure.

4. The evaporative air cooler according to claim 2, characterized in that a first mounting through hole (8) is provided on the mounting plate (7), the power device is arranged on the side of the mounting plate (7) away from the water distribution structure, and the output shaft (18) of the power device passes through the first mounting through hole (8) to the side of the mounting plate (7) close to the water distribution structure and is fixedly connected to the water blocking structure (5).

5. The evaporative air cooler according to claim 4, characterized in that , further comprising a sealing device provided between the first mounting through hole (8) and the output shaft (18).

6. The evaporative air cooler according to claim 1, characterized in that the water blocking structure further comprises: an elastic member fixedly connected to the side of the shielding portion (11) close to the water outlet hole (4).

7. The evaporative air cooler according to any one of claims 1-6, characterized in that the water distribution structure comprises a water distribution cavity (3), and the water outlet hole (4) is provided at the bottom of the water distribution cavity (3); the water distribution structure further comprises: a retaining rib (14) extending upward from the bottom of the water distribution cavity (3), and the height of the retaining rib (14) is less than the cavity wall of the water distribution cavity (3), and the water outlet hole (4) is provided on one side of the retaining rib (14); An overflow hole (15) is provided at the bottom of the water distribution chamber (3), on the other side of the baffle rib (14), and is adapted to drain water out of the bracket (1).

8. The evaporative air cooler according to any one of claims 1-6, characterized in that it further comprises: a sensing device provided on the bracket (1) and adapted to sense whether the wet curtain (2) is assembled on the accommodation chamber.

9. The evaporative air cooler according to claim 8, characterized in that the sensing device is a photoelectric sensing switch (16).

10. The evaporative air cooler according to claim 8, characterized in that it further comprises: a controller, connected to the sensing device and the power device, and adapted to control the power device to drive the water blocking structure (5) to move to the sealed state when the sensing device senses that the wet curtain (2) is not assembled on the accommodation chamber.

11. The evaporative air cooler according to any one of claims 1-6, characterized in that the water blocking structure (5) is rotatably connected to the water distribution structure.

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