Evaporative odor-removing cooling fan
By installing ultraviolet lamps in the water spray tank of the evaporative air cooler and using a light-shielding structure, the problems of bacterial growth and odor on the wet curtain are solved, achieving efficient sterilization and safe use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN XILIN TECHNOLOGY CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-05-29
AI Technical Summary
During use, existing evaporative air coolers suffer from bacterial growth on the wet curtains, leading to mold and odor. Furthermore, the ultraviolet lamps have limited sterilization effects, and the emitted light is harmful to human health.
An ultraviolet lamp is installed inside the water spray tank of the evaporative air cooler. It is sealed with a transparent cover and works in conjunction with a light shield to control the switching of the ultraviolet lamp, ensuring that the ultraviolet light sterilizes only inside the water spray tank and preventing light leakage.
It effectively sterilizes and reduces bacterial growth in water and on wet curtains, lowers the chance of mold, prevents odors, and protects the human body from the harmful effects of ultraviolet rays.
Smart Images

Figure CN224302226U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of evaporative air cooler technology, and in particular to an evaporative odor-eliminating air cooler. Background Technology
[0002] Current evaporative air coolers mainly consist of a water tank, an air box, a water pump, and a control circuit. The air box is mounted on the water tank and includes a casing and a fan. The fan is housed inside the casing. The front of the casing has an air outlet, while the sides and back have air inlets. A wet curtain is installed inside the air inlets. A water spray trough is located on the top of the casing, and spray holes corresponding to the wet curtain are located at the bottom of the trough. The water spray trough is connected to the water tank via a water pump. The water pump and fan are electrically connected to the control circuit. Its working principle is as follows: the water pump draws water into the water spray trough, and the water in the trough flows to the spray holes, thus wetting the wet curtain below. When air from the air inlet passes through the wet curtain, the relatively warm air exchanges heat with the wet curtain, and then the air is blown out from the air outlet by the fan, achieving the purpose of cooling. However, because there are pollutants such as dust and bacteria in the air, these pollutants combine with water in the wet curtain. The contaminated water falls into the water tank and is then pumped back into the water spray trough by the water pump, thus wetting the wet curtain again. After a certain period of use, the bacteria levels in the water exceed the standard, resulting in a greater accumulation of bacteria on the evaporative cooling pads. This can easily lead to mold growth and unpleasant odors. Furthermore, the cool air blown out by the evaporative fan can carry a large number of bacteria from the cooling pads, which can easily cause infection if inhaled by the user.
[0003] Chinese Patent Publication No. CN113154568A, published on July 23, 2021, discloses a sterilization-type evaporative cooling fan, including a body, a fan, a water tank, a wet curtain device, a water distribution tank, a water receiving tank, and a multi-angle oscillating air outlet device. A first sterilization device is installed in the area through which the air flows between the wet curtain device and the fan, used to sterilize the air flowing through this area. A second sterilization device is installed in the water tank, having a storage compartment for storing disinfectant liquid and an automatic dispensing pipe located at the bottom of the storage compartment for automatically dispensing disinfectant liquid into the water tank. In this structure, the first sterilization device is an ultraviolet lamp, which sterilizes the air after passing through the wet curtain device. However, bacteria accumulated on the wet curtain device still exist, so the wet curtain is prone to mold and odor. Furthermore, since the air outlet of the fan is connected to the interior of the body, when the ultraviolet lamp is lit, the light shines through the air outlet, causing some harm to people. Utility Model Content
[0004] The purpose of this invention is to provide an evaporative deodorizing air cooler with a reasonable structure that prevents bacterial growth in spray water and reduces the chance of mold growth in the wet curtain.
[0005] The purpose of this utility model is achieved as follows:
[0006] An evaporative odor-eliminating air cooler includes a water storage tank, a blower box, a water pump, and a control circuit. The blower box is supported on the water storage tank and includes a housing and a fan. The fan is housed inside the housing. The front of the housing has an air outlet, and the sides and / or back of the housing have air inlets. A wet curtain is installed inside the air inlets. The top of the housing has a water spray trough, and the bottom of the water spray trough has spray holes corresponding to the wet curtain. The water spray trough is connected to the water storage tank via the water pump. The top of the housing has an ultraviolet lamp that irradiates ultraviolet light into the water spray trough. The fan, water pump, and ultraviolet lamp are electrically connected to the control circuit.
[0007] The objective of this utility model can also be achieved by the following technical measures:
[0008] As a more specific embodiment, the housing is composed of a front panel, a rear panel, a top cover, and two side panels. The water spray trough is installed on the top cover, and the top of the water spray trough is also provided with an outer cover. The bottom of the water spray trough is provided with a transparent cover, and the ultraviolet lamp is installed inside the transparent cover. The rear panel and the inner sides of the two side panels are provided with the wet curtains. The air outlet is installed on the front panel, and the rear panel and the side panels are respectively provided with rear air inlets and side air inlets corresponding to their respective wet curtains.
[0009] As a further solution, the bottom of the top cover is provided with an opening corresponding to the bottom of the water spray tank, and a transparent cover is placed on the opening and sealed to the opening; the top cover is provided with a light shield corresponding to the opening, and the light shield is used to prevent the light of the ultraviolet lamp from shining into the box and passing through the air outlet so as not to affect the user.
[0010] As a further embodiment, one edge of the outer cover is hinged to the top cover, and a magnetic switch is provided on the line connecting the ultraviolet lamp and the control circuit. The magnetic switch is located on the side opposite to the hinge of the top cover and the outer cover, and on the outside of the water spray tank. A magnetic block is provided on the other edge opposite to the hinge of the outer cover. When the outer cover is opened, the magnetic block moves away from the magnetic switch, and the magnetic switch disconnects the circuit of the ultraviolet lamp.
[0011] As a further embodiment, the edge of the light-shielding plate is provided with elastic buckles and a wire-threading notch. The inner wall of the opening is provided with a buckle position corresponding to the elastic buckle. The elastic buckle and the buckle position are fastened together and fixed. The top surface of the light-shielding plate is also provided with a card seat. The card seat is provided with a C-shaped card groove. The ultraviolet lamp is tubular and is attached to the C-shaped card groove. The wire of the ultraviolet lamp is led out from the wire-threading notch.
[0012] As a further embodiment, the water spraying tank is provided with interconnected diversion channels on the rear side and the left and right sides. The spray holes are located at the bottom of the diversion channels. The water spraying tank and the diversion channels are separated by a boss. An overflow channel is provided on the top of the boss, and the overflow channel connects the upper part of the water spraying tank and the diversion channels.
[0013] As a further embodiment, the outer cover has a U-shaped opening in the middle of its rear side, and a horizontal pin is provided on the inner side of the U-shaped opening; the top cover has a bearing seat corresponding to the horizontal pin, and a snap-fit is provided on one side of the bearing seat to engage with the horizontal pin; the lower side of the bearing seat has an elastic barb, and the top cover has a buckle hole corresponding to the elastic barb, and the elastic barb is inserted into the buckle hole for engagement.
[0014] As a further embodiment, the front panel is provided with a guide vane on the air outlet, and a control panel and a water inlet are respectively provided above and below the air outlet on the front panel. The control panel is electrically connected to the control circuit, and a cover plate is flipped onto the water inlet.
[0015] As a further embodiment, the side wall of the water storage tank is provided with a water gauge and a drain outlet, and a low-level water collection trough is provided at the bottom of the water storage tank near the side wall, with the drain outlet connected to the low-level water collection trough.
[0016] As a further embodiment, the water pump is a submersible pump, which is installed in a water storage tank, and the water spray tank is equipped with a nozzle, which is connected to the submersible pump through a water pipe.
[0017] The beneficial effects of this utility model are as follows:
[0018] (1) The ultraviolet lamp of this utility model irradiates the water in the water tank. Since the water tank has a small space and a small amount of water, it has a better sterilization effect after being irradiated by the ultraviolet lamp, which reduces the growth of bacteria in the water and on the wet curtain, reduces the chance of the wet curtain becoming moldy, and thus achieves the effect of odor removal (avoiding the generation of odor). Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention (outer cover and water inlet cover in the open state).
[0020] Figure 2 This is a schematic diagram of the main structure of this utility model.
[0021] Figure 3 for Figure 2 A schematic diagram of the AA cross-sectional structure.
[0022] Figure 4 for Figure 3 Enlarged structural diagram at point B.
[0023] Figure 5 This is a top view of the structure of this utility model.
[0024] Figure 6 for Figure 5 A schematic diagram of the CC cross-section structure.
[0025] Figure 7 This is an exploded view of the ultraviolet lamp and the light shield in this utility model.
[0026] Figure 8 for Figure 7 Enlarged structural diagram at point D.
[0027] Figure 9 This is a three-dimensional angle structural diagram of the present invention.
[0028] Figure 10 This is a three-dimensional structural diagram of the present invention. Detailed Implementation
[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0030] See Figures 1-10 As shown, an evaporative odor-removing air cooler includes a water storage tank 1, a blower box 10, a water pump 9, and a control circuit (not shown in the figure). The blower box 10 is supported on the water storage tank 1 and includes a housing and a fan 7. The fan 7 is installed inside the housing. The front of the housing has an air outlet 21, and the back of the side of the housing has an air inlet. The inner side of the air inlet has a wet curtain 8. The top of the housing has a water spray trough 32, and the bottom of the water spray trough 32 has spray holes 351 corresponding to the wet curtain 8. The water spray trough 32 is connected to the water storage tank through the water pump 9. The top of the housing has an ultraviolet lamp 6 that irradiates ultraviolet light into the water spray trough 32. The fan 7, the water pump 9, and the ultraviolet lamp 6 are electrically connected to the control circuit.
[0031] The enclosure is formed by a front panel 2, a rear panel 5, a top cover 3, and two side panels 4. The water spray trough 32 is installed on the top cover 3. The top of the water spray trough 32 is also provided with an outer cover 31. The bottom of the water spray trough 32 is provided with a transparent cover 33. The ultraviolet lamp 6 is installed inside the transparent cover 33. The rear panel 5 and the two side panels 4 are provided with wet curtains 8 on their inner sides. The air outlet 21 is installed on the front panel 2. The rear panel 5 and the side panels 4 are respectively provided with a rear air inlet 51 and a side air inlet 41 corresponding to their respective wet curtains 8.
[0032] The bottom of the top cover 3 is provided with an opening 39 corresponding to the bottom of the water tank 32. A transparent cover 33 is provided on the opening 39 and is sealed to the opening 39. The top cover 3 is provided with a light shield 61 corresponding to the opening 39. The light shield 61 is used to prevent the light from the ultraviolet lamp 6 from shining into the box.
[0033] The port of the transparent cover 33 is provided with an outward flange 331. A sealing ring 391 is provided between the top edge of the opening 39 and the outward flange 331. The bottom of the outward flange 331 is connected to the top cover 3 via a connector corresponding to the inner ring side of the sealing ring 391. The connector is a screw, which is screwed in from the bottom of the top cover 3 and connected to the lower end of the outward flange.
[0034] One edge of the outer cover 31 is hinged to the top cover 3. A magnetic switch 25 is provided on the line that connects the ultraviolet lamp 6 to the control circuit. The magnetic switch 25 is located on the side opposite to the hinge of the top cover 3 and the outer cover 31 and on the outside of the water spray tank 32. A magnetic block 37 is provided on the other edge opposite to the hinge of the outer cover 31. When the outer cover 31 is opened, the magnetic block 37 moves away from the magnetic switch 25, and the magnetic switch 25 disconnects the circuit of the ultraviolet lamp 6.
[0035] The edge of the light-shielding plate 61 is provided with elastic buckles 63 and wire-threading notches 66. The inner wall of the opening 39 is provided with a buckle position 392 corresponding to the elastic buckle 63. The elastic buckle 63 is fastened and fixed to the buckle position 392. The top surface of the light-shielding plate 61 is also provided with a card holder 62. The card holder 62 is provided with a C-shaped card groove. The ultraviolet lamp 6 is tubular and is fastened to the C-shaped card groove. The wire of the ultraviolet lamp 6 is led out from the wire-threading notch 66. The outer side of the elastic buckle 63 is provided with a buckle hole 631 that is fastened to the buckle position 392.
[0036] The water spray tank 32 has interconnected diversion channels 35 on its rear side and left and right sides. The spray holes 351 are located at the bottom of the diversion channels 35. The water spray tank 32 and the diversion channels 35 are separated by a boss. The top of the boss is provided with an overflow channel 34, which connects the upper part of the water spray tank 32 and the diversion channels 35.
[0037] The outer cover 31 has a U-shaped opening at the center of its rear side, and a horizontal pin 311 is provided on the inner side of the U-shaped opening; the top cover 3 has a bearing seat 36 corresponding to the horizontal pin 311, and a snap-fit is provided on one side of the bearing seat 36 to fasten the horizontal pin 311. The lower side of the bearing seat 36 has an elastic barb 361, and the top cover 3 has a buckle hole corresponding to the elastic barb 361. The elastic barb 361 is inserted into the buckle hole for fastening.
[0038] The front panel 2 has an air outlet 21 with a guide vane. The front panel 2 has a control panel 22 and a water inlet 24 above and below the air outlet 21, respectively. The control panel 22 is electrically connected to the control circuit, and the water inlet 24 is flipped and connected to a cover plate 23.
[0039] The side wall of the water storage tank 1 is provided with a water gauge 11 and a drain outlet 12. The bottom of the water storage tank 1 is provided with a water collection trough 13 near the side wall. The drain outlet 12 is connected to the water collection trough 13.
[0040] The water pump 9 is a submersible pump 9, which is installed in the water storage tank 1. The water spray tank 32 is equipped with a nozzle 38, which is connected to the submersible pump 9 through a water pipe 91. The nozzle 38 has multiple holes evenly distributed on its outer periphery and its top is sealed to prevent water from rushing upwards when it is discharged.
[0041] The aforementioned ultraviolet lamps and their leads all adopt a waterproof structure, which is existing technology and will not be described in detail here.
[0042] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. An evaporative odor-removing air cooler, comprising a water storage tank (1), a blower box (10), a water pump (9), and a control circuit, wherein the blower box (10) is supported on the water storage tank (1), the blower box (10) comprises a box body and a fan (7), the fan (7) is disposed in the box body, the front of the box body is provided with an air outlet (21), the side and / or back of the box body is provided with an air inlet, the inner side of the air inlet is provided with a wet curtain (8), the top of the box body is provided with a water spray trough (32), the bottom of the water spray trough (32) is provided with a spray hole (351) corresponding to the wet curtain (8), and the water spray trough (32) is connected to the water storage tank through the water pump (9); characterized in that: The top of the box is equipped with an ultraviolet lamp (6) that irradiates ultraviolet light into the water tank (32). The fan (7), water pump (9) and ultraviolet lamp (6) are electrically connected to the control circuit respectively.
2. The evaporative odor-eliminating air cooler according to claim 1, characterized in that: The box is formed by a front panel (2), a rear panel (5), a top cover (3) and two side panels (4). The water spray trough (32) is set on the top cover (3). The top of the water spray trough (32) is also provided with an outer cover (31). The bottom of the water spray trough (32) is provided with a transparent cover (33). The ultraviolet lamp (6) is set inside the transparent cover (33). The rear panel (5) and the two side panels (4) are provided with wet curtains (8) on their inner sides. The air outlet (21) is set on the front panel (2). The rear panel (5) and the side panels (4) are respectively provided with a rear air inlet (51) and a side air inlet (41) corresponding to their respective wet curtains (8).
3. The evaporative odor-eliminating air cooler according to claim 2, characterized in that: The bottom of the top cover (3) is provided with an opening (39) corresponding to the bottom of the water tank (32). A transparent cover (33) is set on the opening (39) and is sealed to the opening (39). The top cover (3) is provided with a light shield (61) corresponding to the opening (39). The light shield (61) is used to prevent the light from the ultraviolet lamp (6) from shining into the box.
4. The evaporative odor-eliminating air cooler according to claim 2, characterized in that: One edge of the outer cover (31) is hinged to the top cover (3). A magnetic switch (25) is provided on the line where the ultraviolet lamp (6) is electrically connected to the control circuit. The magnetic switch (25) is located on the side opposite to the hinge of the top cover (3) and the outer cover (31) and on the outside of the water tank (32). A magnetic block (37) is provided on the other edge opposite to the hinge of the outer cover (31). When the outer cover (31) is opened, the magnetic block (37) moves away from the magnetic switch (25), and the magnetic switch (25) disconnects the circuit of the ultraviolet lamp (6).
5. The evaporative odor-eliminating air cooler according to claim 3, characterized in that: The edge of the light-shielding plate (61) is provided with an elastic buckle (63) and a wire notch (66). The inner wall of the opening (39) is provided with a buckle position (392) corresponding to the elastic buckle (63). The elastic buckle (63) and the buckle position (392) are fastened and fixed. The top surface of the light-shielding plate (61) is also provided with a card seat (62). The card seat (62) is provided with a C-shaped card groove. The ultraviolet lamp (6) is tubular. The ultraviolet lamp (6) is clipped into the C-shaped card groove. The wire of the ultraviolet lamp (6) is led out from the wire notch (66).
6. The evaporative odor-eliminating air cooler according to claim 2, characterized in that: The water spray tank (32) has interconnected diversion channels (35) on its rear side and left and right sides. The spray holes (351) are located at the bottom of the diversion channels (35). The water spray tank (32) and the diversion channels (35) are separated by a boss. The top of the boss is provided with an overflow channel (34), which connects the water spray tank (32) and the upper part of the diversion channels (35).
7. The evaporative odor-eliminating air cooler according to claim 3, characterized in that: The outer cover (31) has a U-shaped opening at the middle of its rear side, and a horizontal pin (311) is provided on the inner side of the U-shaped opening; the top cover (3) has a bearing seat (36) corresponding to the horizontal pin (311), and a buckle is provided on one side of the bearing seat (36) to fasten to the horizontal pin (311). The lower side of the bearing seat (36) has an elastic barb (361), and the top cover (3) has a buckle hole corresponding to the elastic barb (361). The elastic barb (361) is inserted into the buckle hole for fastening.
8. The evaporative odor-eliminating air cooler according to claim 3, characterized in that: The front panel (2) has a guide vane on the air outlet (21). The front panel (2) has a control panel (22) and a water inlet (24) above and below the air outlet (21), respectively. The control panel (22) is electrically connected to the control circuit, and the water inlet (24) is flipped and connected to a cover plate (23).
9. The evaporative odor-eliminating air cooler according to claim 1, characterized in that: The side wall of the water storage tank (1) is provided with a water gauge (11) and a drain outlet (12). The bottom of the water storage tank (1) near the side wall is provided with a water collection low level tank (13), and the drain outlet (12) is connected to the water collection low level tank (13).
10. The evaporative odor-eliminating air cooler according to claim 2, characterized in that: The water pump (9) is a submersible pump (9), which is installed in the water storage tank (1). The water spray tank (32) is equipped with a nozzle (38), which is connected to the submersible pump (9) through a water pipe (91).