CN220771267U - Desktop air cooler with cold aurora effect - Google Patents

Abstract

The utility model relates to a desktop air cooler with an aurora effect, which comprises a fan frame, a refrigerating device arranged in the fan frame and an aurora simulating structure, wherein the aurora simulating structure comprises a plurality of luminous elements, a rotary light guide reflecting element and a power piece, the fan frame is provided with a light transmission window and a cold air outlet, the light guide reflecting element is rotatably arranged on the fan frame, the light guide reflecting element is provided with a light refraction structure and a light reflection structure, the light refraction structure comprises a hollow light transmission cylinder, light emitted by the luminous elements is refracted by the cylinder wall of the light transmission cylinder for more than two times and is emitted, the light reflection structure comprises a plurality of concave cambered surfaces and corresponds to the luminous elements, the light emitted by the luminous elements is emitted through the light refraction structure and the light reflection structure to form the aurora effect, and the aurora effect is displayed through the light transmission window. The user can observe the cold auroral effect while enjoying cool wind, so that the cooling effect is further added, and the use experience of the user is enhanced.

Description

Desktop air cooler with cold aurora effect

Technical Field

The utility model relates to the technical field related to refrigeration appliances, in particular to a desktop air cooler with a cold aurora effect.

Background

With the increase of carbon dioxide emission, the room temperature effect generated by the atmosphere is more and more obvious. In a report issued by the world weather organization and the uk weather office, it was shown that the annual temperature of the earth from now on in 2026 was 48% more likely to rise 1.5 degrees celsius than the pre-industrialisation level, and this probability may continue to rise. The data shows that the probability of a 1.5 degree celsius rise in the next 5 years is also close to 0 before 7 years. Global warming is thus a future trend. Moreover, due to the damage of humans to the natural environment, extreme weather occurs in local areas, for example, in certain areas, extreme high temperatures occur in summer, and extremely cold climates occur in winter in other areas. For example, the European Union-Combie climate change service bureau issues monitoring reports on day 9 of month 1 of 2023, which shows that summer 2022 is the hottest summer since European temperature monitoring records. 2022 is the second year of the second heat in europe recorded, the fifth year worldwide. Therefore, how to comfortably pass through the summer heat is a great difficulty facing people in most areas.

Air conditioning, while a powerful means of cooling, is relatively high in energy consumption. Therefore, fans are still the most widely used cooling appliances. At present, a plurality of small-sized desktop fans specially used for office workers are developed, and the small-sized desktop fans are directly placed on a desktop to blow air to people, so that the purpose of quickly cooling and relieving summer heat is achieved. However, the current desktop fan products are relatively small or miniaturized, only have the function of blowing, and are difficult to be added with other functions due to small volume.

For example, chinese patent publication No. CN104266287a discloses a desk air conditioner, which has a main body of a cooling and heating module, wherein a cold air channel and a hot air channel are formed in the main body to be isolated from each other, so that air flows entering the main body respectively flow upwards along the cold air channel and the hot air channel, and heat exchange is performed with a cold end and a hot end of the cooling and heating module respectively in the process of flowing upwards to form a cold air flow and a hot air flow. The desktop air conditioner provided by the utility model is provided with the machine body and the detachable top cover assembly, and has the advantages of simple, clear and compact structure and convenience in installation. In addition, the desktop air conditioner is also provided with an indicator lamp for various colors aiming at the air quality. Although there are different colors of indicator lights, these lights do not give the customer a visual effect of cool wind, but only serve as a reminder or cue of the air quality.

Disclosure of Invention

Therefore, the desktop air cooler with the cool aurora effect, which has the advantages of compact structure, reasonable and ingenious light effect structure and cool visual effect, can bring cool physical feelings to users, can bring cool feelings on visual sense to users, and greatly enhances the use experience of users.

The utility model provides a desktop air-cooler with cold aurora effect, includes the fan frame, locates refrigerating plant, cold aurora analog structure in the fan frame, cold aurora analog structure includes a plurality of light emitting component, rotation leaded light reflector element and drive the pivoted power piece of rotation leaded light reflector element, the fan frame has light-transmitting window and cold wind export, leaded light reflector element rotatably installs in the fan frame, leaded light reflector element has light refraction structure and light reflection structure, light refraction structure includes hollow printing opacity barrel, the light that light emitting component sent is through the refraction of the section of thick bamboo wall of printing opacity barrel more than twice and is emergent, light reflection structure includes a plurality of indent cambered surface that are formed on the printing opacity barrel outer circumference, a plurality of indent cambered surface corresponds with a plurality of light emitting component, the light that light emitting component sent is through light refraction structure and light reflection structure and the emergence and form cold aurora effect, refrigerating plant's refrigeration wind is blown out from the cold wind export, through the printing opacity window reveals aurora effect.

Specifically, the number of the light-emitting elements is n, the number of the concave cambered surfaces is m×n, wherein m and n are both greater than or equal to 3, the concave cambered surfaces are divided into n groups, each group is m, m concave cambered surfaces in each group are uniformly distributed on the circumference of the same cross section of the light-transmitting barrel, the arrangement phases of the concave cambered surfaces in adjacent groups differ by 360/m so that the adjacent concave cambered surfaces are in a staggered distribution form, and each light-emitting element corresponds to the position of one group of concave cambered surfaces.

In some embodiments, the plurality of concave cambered surfaces in each group are sequentially and seamlessly joined in the circumferential direction of the same section, a straight line which is flush with the outer circumferential surface of the light-transmitting cylinder is arranged at the joint, and the radial section of the lowest concave of the plurality of concave cambered surfaces in each group is a positive polygonal arc.

In some preferred embodiments, the fan frame comprises a middle frame, the cold-light simulation structure is mounted at the top of the middle frame, the middle frame is provided with a front inner frame and a rear inner frame which are assembled into a whole, the front inner frame comprises a backlight plate and an exhaust structure, the top of the backlight plate is positioned at the inner side of the cold-light simulation structure, light emitted by the cold-light simulation structure forms a light curtain on the backlight plate, a light effect space is arranged between the light transmission window and the backlight plate, and light emitted by the cold-light simulation structure forms a stereoscopic cold-light curtain in the light effect space.

In some embodiments, the concave cambered surface is a relief form with lower middle and higher two sides along the axial direction, the concave cambered surface projection presents an ellipse on a horizontal plane, the concave cambered surface comprises a middle cambered surface and an outer ring surface, the middle cambered surface comprises a middle depression bottom surface and two side slopes, the middle depression bottom surface and the two side slopes are axially distributed along the light-transmitting cylinder, the outer ring surface surrounds the middle cambered surface and is more gentle than the two side slopes, the outer ring surface presents an outwards gradually-falling cambered surface at the edge parts of the two sides of the axis of the light-transmitting cylinder, and the edge parts of the outer ring surface at the two sides of the axis of the light-transmitting cylinder are lower than the middle depression bottom surface.

Further, the rotary light guide reflecting element is driven by the power piece to rotate at a preset angular speed, the angular speed is adjustable through the controller so as to adjust the effect of the cold polarized light effect, each luminous element comprises an LED luminous chip and a lens covered on the LED luminous chip, and a plurality of luminous elements are arranged on the lamp panel side by side.

In some preferred embodiments, the refrigerating device comprises a hot end radiator, a cold end radiator, and a semiconductor refrigerator arranged between the hot end radiator and the cold end radiator, the hot end radiator is provided with a hot end radiating base, the cold end radiator is provided with a cold end radiating base, heat conducting structures are respectively arranged between the hot end radiating base and the semiconductor refrigerator and between the cold end radiating base and the semiconductor refrigerator, the hot end radiator and the cold end radiator are respectively provided with radiating fins, the rear sides of the two radiating fins are respectively provided with a fan, the top surfaces of the radiating fins are in a concave arc shape, and the cold end radiator corresponds to a cold air outlet position.

In some specific embodiments, the fan frame comprises an outer frame, a base and a top cover, the outer frame comprises a front frame, a rear frame and two side frames which are assembled together, the light-transmitting window is arranged on the upper portion of the front frame, the cold air outlet is arranged on the lower portion of the front frame, a plurality of air outlet grid holes are formed in the lower portion of the front frame, outer frame air holes are respectively formed in the positions, corresponding to the fans, of the rear frame, inner frame air holes are respectively formed in the positions, corresponding to the fans, of the rear inner frame, inner frame air holes are respectively formed in the positions, corresponding to the hot end heat radiator, of each side frame are provided with a plurality of hot air holes, the positions, corresponding to the hot end heat radiator, of the side face of the middle frame are provided with hot air windows, the positions, corresponding to the hot end heat radiator, of the top cover is arranged on the top of the middle frame.

Preferably, the top of middle frame is equipped with lamp plate and control mainboard, be equipped with a plurality of buttons and display screen on the control mainboard, the top cap has the through-hole that exposes each button and display screen, and a plurality of buttons include light control button, power button, wind speed button.

Specifically, each light-emitting element circularly emits light of different colors under the control of the control main board, and a plurality of light-emitting elements respectively emit light of different colors according to time sequences.

The desktop air cooler with the cold polarized light effect not only has a refrigerating device, but also has a cold polarized light simulation structure, the structure is provided with a light refraction structure and a light reflection structure, light emitted by the light emitting element exits through the light refraction structure and the light reflection structure and forms the cold polarized light effect, refrigerating air of the refrigerating device is blown out from the cold air outlet, and the cold polarized light effect is displayed through the light transmission window. The whole structure is compact, the light effect structure is reasonable and ingenious, the user can see the cold aurora effect through the light-transmitting window, and the user can enjoy the cold aurora effect while enjoying the cold wind blowing. Therefore, the air cooler not only can bring cool physical feeling to users, but also can bring cool feeling in visual sense to users, and greatly enhances the use experience of users.

Drawings

Fig. 1 is a schematic perspective view of a desktop air cooler with a cold polarized light effect according to an embodiment of the present utility model.

Fig. 2 is an exploded perspective view of a desktop air cooler with a cold polarized light effect according to an embodiment of the present utility model.

Fig. 3 is a schematic perspective view of a desktop air cooler with a cold light effect according to an embodiment of the present utility model after a casing is removed.

Fig. 4 is an exploded perspective view of a desktop air cooler with a cold polarized light effect according to an embodiment of the present utility model after a casing is removed.

Fig. 5 is a schematic perspective view of a rotary light guiding reflector element in the desktop air cooler of fig. 1.

Fig. 6 is a schematic plan view of a rotary light guiding reflector element in the table top air cooler of fig. 1.

Fig. 7 is a schematic side view of a rotary light guiding reflector element of the desktop air cooler of fig. 1.

In the accompanying drawings:

100. a desktop air cooler; 10. a fan frame; 101. a front frame; 102. a rear frame; 104. a side frame; 105. a top cover; 107. a hot air hole; 108. an outer frame wind hole; 101a, air outlet grid holes; 15. a light-transmitting window; 156. a through hole; 17. a cold air outlet; 18. a handle; 19. a base; 20. a refrigerating device; 201. a front inner frame; 202. a rear inner frame; 204. a hot air window; 208. an inner frame wind hole; 23. a backlight plate; 26. an exhaust structure; 261. a cooling grid; 30. a cold polar light simulation structure; 31. a light emitting element; 320. a concave cambered surface; 321. a middle cambered surface; 322. a bottom surface of the middle depression; 323. slope surfaces on two sides; 325. an outer ring surface; 362. an outer circumferential surface; 32. a rotary light guiding and reflecting element; 35. a power member; 36. a light-transmitting cylinder; 37. a lamp panel; 38. a control main board; 41. a hot side heat sink; 411. a cold end heat dissipation base; 412. a heat radiation fin; 42. a cold end radiator; 421. a hot end heat dissipation base; 45. a semiconductor refrigerator; 61. a key; 63. a display screen; 64. a key sheet.

Detailed Description

The present utility model will be described in detail with reference to specific embodiments and drawings.

Referring to fig. 1-4, a desktop air cooler 100 with a cold light effect provided by an embodiment of the present utility model includes a fan frame 10, a refrigerating device 20, and a cold light simulating structure 30, where the refrigerating device 20 is disposed in the fan frame 10, as shown in fig. 3 and 4, the cold light simulating structure 30 includes a plurality of light emitting elements 31, a rotary light guiding reflective element 32, and a power member 35 driving the rotary light guiding reflective element 32 to rotate, the fan frame 10 has a light transmitting window 15 and a cold air outlet 17, the light guiding reflective element 32 is rotatably mounted on the fan frame 10, the light guiding reflective element 32 has a light refracting structure and a light reflecting structure, the light refracting structure includes a hollow light transmitting cylinder 36, light emitted by the light emitting element 31 is refracted by more than two times by the cylinder wall of the light transmitting cylinder 36, the light reflecting structure includes a plurality of concave cambered surfaces 320 on the outer circumferential surface 362 of the light transmitting cylinder 36, the plurality of concave cambered surfaces 320 correspond to the plurality of light emitting elements 31, the light guiding reflective element 32 is rotatably mounted on the fan frame 10, the light guiding reflective element 32 has a light refracting structure and the cold light is emitted by the light reflecting structure and the light reflecting from the light reflecting structure through the cold light window 17, and the cold light is emitted by the light reflecting structure and the cold light reflecting structure is blown out from the cold light window 17.

Specifically, as shown in fig. 2 and 3, the fan frame 10 includes an outer frame, a middle frame, a base 19 and a top cover 105, the cold-light simulation structure 30 is mounted on the top of the middle frame, the middle frame has a front inner frame 201 and a rear inner frame 202 assembled together, the front inner frame 201 includes a backlight plate 23 and an exhaust structure 26, the top of the backlight plate 23 is located on the inner side of the cold-light simulation structure 30, the light emitted by the cold-light simulation structure 30 forms a light curtain on the backlight plate 23, a light effect space is provided between the light transmission window 15 and the backlight plate 23, and the light emitted by the cold-light simulation structure 30 forms a stereoscopic cold-light curtain in the light effect space. The cold polarized light curtain fills the whole light effect space, so that a user can observe a strong cold polarized light effect and give a visual cool feeling. The light emitting element 31 emits from top to bottom, so that the cold light curtain is flowing downwards, and thus if the cold flow falls, the flowing light curtain effect with extremely vivid, dazzling and extremely frigid effects is simulated.

As shown in fig. 4, in some preferred embodiments, the refrigeration device 20 includes a hot side radiator 41, a cold side radiator 42, and a semiconductor refrigerator 45 located between the hot side radiator 41 and the cold side radiator 42, the hot side radiator 41 has a hot side heat dissipation base 421, the cold side radiator 42 has a cold side heat dissipation base 411, and heat conduction structures, for example, a heat conduction glue 46, are respectively disposed between the hot side heat dissipation base 421 and the semiconductor refrigerator 45, and between the cold side heat dissipation base 411 and the semiconductor refrigerator 45. The hot-side heat sink 41 and the cold-side heat sink 42 are respectively provided with heat dissipation fins 412, and the rear sides of the two heat dissipation fins 412 are respectively provided with fans (not shown). As shown in fig. 4, there are two fans corresponding to the two heat dissipation fins 412, respectively. The heat dissipation fins 412 have a plurality of fins with ventilation gaps therebetween, and the fan blows air against the ventilation gaps. The top surface 412a of the heat dissipation fin 412 is concave arc-shaped, i.e. a plurality of fins are sequentially increased from the middle to the two sides, so as to form a concave arc-shaped profile similar to a U or C shape. The cold end radiator 42 corresponds to the position of the cold air outlet 17 and also corresponds to the position of the air exhaust structure 26.

In some embodiments, the outer frame includes a front frame 101, a rear frame 102 and two side frames 104 assembled together, the light-transmitting window 15 is disposed on the upper portion of the front frame 101, the cold air outlet is disposed on the lower portion of the front frame 101, the lower portion of the front frame 101 has a plurality of air outlet holes 101a, the front inner frame 201 is provided with a plurality of cooling grids 261 corresponding to the plurality of air outlet holes 101a, and the plurality of cooling grids 261 are mounted in one window on the lower portion of the front inner frame 201. The positions of the rear frame 102 corresponding to the fans are respectively provided with outer frame air holes 108, the positions of the rear inner frame 202 corresponding to the fans are respectively provided with inner frame air holes 208, the outer frame air holes 108 correspond to the inner frame air holes 208, the positions of each side frame 104 corresponding to the hot end radiator 41 are provided with a plurality of hot air holes 107, the positions of the side surfaces of the middle frame corresponding to the hot end radiator 41 are provided with hot air windows 204, and the hot air windows 204 are formed by digging notches at the positions of the side surfaces of the front inner frame 201 and the rear inner frame 202 opposite to each other. The front inner frame 201 and the rear inner frame 202 are integrally attached by fasteners, and the refrigeration apparatus 20 is housed inside. And the cold cathode fluorescent simulation structure 30 is installed on top of the front inner frame 201 between the front inner frame 201 and the front frame 101. The hot air holes 107 are located corresponding to the hot end radiator 41, and the top cover 105 is mounted on top of the middle frame.

In this embodiment, preferably, the cold end radiator 42, the hot end radiator 41 and the semiconductor refrigerator 45 are sequentially arranged from top to bottom, and two fans are correspondingly adopted, so that cold air circulates from below, and after the cold end radiator 42 cools, the cold air is blown out through the air exhaust structure 26 and the cold air outlet 17. While hot air is emitted from the plurality of hot air holes 107 at both sides of the upper portion of the middle frame. Therefore, cold air and hot air are not interfered with each other, and the air flow is smooth, the heat conduction and heat convection efficiency is improved, and the energy conservation and the emission reduction are realized.

In some preferred embodiments, the number of the light emitting elements 31 is n, the number of the concave cambered surfaces 320 is m×n, where m and n are greater than or equal to 3, the concave cambered surfaces 320 are divided into n groups, each group is m, the m concave cambered surfaces 320 in each group are uniformly distributed on the same cross-section circumference of the light-transmitting barrel 36, and the adjacent groups of concave cambered surfaces 320 are arranged with a phase difference of 360/m so that the adjacent concave cambered surfaces 320 are in a staggered distribution form, and each light emitting element 31 corresponds to the position of one group of concave cambered surfaces 320.

For example, as shown in fig. 3 and fig. 5 to fig. 7, four light emitting elements 31 are illustrated, and the number of concave cambered surfaces 320 corresponding to each light emitting element 31 to a group is 3, that is, n=4, m=3, and there are 12 concave cambered surfaces 320 in total. As shown, the arrangement phases of adjacent sets of concave cambered surfaces 320 are 60 degrees apart, and the radial arc angle of the concave cambered surfaces 320 of the same set is 120 degrees, i.e., a=60 degrees, b=120 in fig. 7.

As shown in fig. 5, the plurality of concave cambered surfaces 320 in each group are sequentially joined in a seamless manner in the circumferential direction of the same cross section, and a straight line 363 flush with the outer circumferential surface 362 of the light-transmitting cylinder 36 is formed at the joint. The connection part is in a pointed cone shape, which is favorable for the light to exit after being fully refracted on the wall of the light-transmitting barrel 36, so that the exit angle is periodically distributed and periodically changed in the rotating process of the light-transmitting barrel 36. As shown in fig. 7, the lowermost recess 328 of the plurality of concave cambered surfaces 320 in each set has a positive polygonal arc shape in radial cross section. In this embodiment, 3 concave cambered surfaces 320 are arranged on the same screenshot, so that the radial cross section of the lowest recess of the three concave cambered surfaces 320 is in a three-sided arc structure, the concave cambered surfaces 320 are in a convex shape in the barrel, and the periodic distribution and periodic variation characteristics of the light emergent angles are enhanced according to regular arrangement.

In some embodiments, as shown in fig. 5 and 6, the concave cambered surface 320 has a relief shape with a middle lower side and two sides gradually rising along the axial direction, and the concave cambered surface 320 has an oval shape or an oval-like shape or a cobble shape when projected on a horizontal plane. The concave cambered surface 320 comprises a middle cambered surface 321 and an outer ring surface 325, the middle cambered surface 321 comprises a middle hollow bottom surface 322 and two side slope surfaces 323, the middle hollow bottom surface 322 and the two side slope surfaces 323 are axially distributed along the light-transmitting cylinder 36, the outer ring surface 325 surrounds the middle cambered surface 321 for one circle and is more gentle than the two side slope surfaces 323, the outer ring surface 325 is an outwards gradually-falling cambered surface at the edge parts of the two sides of the axis X-X 'of the light-transmitting cylinder 36, and the edge parts of the outer ring surface 325 at the two sides of the axis X-X' of the light-transmitting cylinder 36 are lower than the middle hollow bottom surface 322. On the one hand, during the rotation process, the concave cambered surface 320 structure can increase the incident angle of the light, so as to avoid the smaller incident angle of the light as much as possible, make the light exit after being more uniformly refracted, and make more light penetrate through the light-transmitting cylinder 36. On the other hand, the concave curved surface 320 has a body that is gentle rather than a circular arc shape of a cylinder, and is more advantageous in that the direction tends to be inclined downward upon light reflection, thereby forming the aforementioned substantially downward flowing light curtain effect.

Further, the rotary light guiding reflector 32 is driven by the power member 35 to rotate at a predetermined angular velocity, and the angular velocity is adjustable by the controller so as to adjust the effect of the cold polarized light. The power element 35 may be a motor, for example, a micro motor, so that the rotary light guiding reflective element 32 rotates at a relatively smooth speed, preferably at a speed not too high, too high to change the light, so as to damage the eye, and at a speed just suitable for cold streamer effects, for example, a speed of 25-60r/min is preferred. Each light emitting element 31 comprises an LED light emitting chip and a lens covering the LED light emitting chip, and a plurality of light emitting elements 31 are arranged on the lamp panel 37 side by side.

Preferably, as shown in fig. 3, the top of the middle frame is provided with a lamp panel 37 and a control main board 38, and the control main board 38 is provided with a plurality of keys 61 and a display 63, and the plurality of keys and the display 63 are respectively arranged on a key board 64. The top cover 105 has through holes 156 exposing the respective keys 61 and the display 63, and the plurality of keys 61 include a light control key, a power key, a wind speed key, and the like.

More preferably, each of the light emitting elements 31 emits light of a different color in a cycle under the control of the control main board 38, and the plurality of light emitting elements 31 emit light of different colors in accordance with time sequences, respectively. The different colored light is mainly luminescence, for example blue light, purple light, and preferably light of a color like an aurora occurring in a south pole or a north pole, to cool aurora effect in a cold region of the template. Thus, when the rotary light guide reflecting element 32 rotates, cold lights with different colors are mixed and the colors are continuously changed, so that a flowing light curtain effect which is extremely vivid, dazzling and extremely cold is formed. In addition, the top of the middle frame is also provided with a handle 18 for carrying.

As can be seen from this, the desktop air cooler 100 having the cold light effect has not only the cooling device 20, but also the cold light simulating structure 30 having a light refracting structure and a light reflecting structure, through which the light emitted from the light emitting element 31 is emitted to form the cold light effect, and the cold air generated by the cooling device 20 is blown out from the cold air outlet 17, and the cold light effect is displayed through the light transmitting window. The whole structure is compact, the light effect structure is reasonable and ingenious, the user can see the cold aurora effect through the light-transmitting window, and the user can enjoy the cold aurora effect while enjoying the cold wind blowing. Therefore, the air cooler not only can bring cool physical feeling to users, but also can bring cool feeling in visual sense to users, and greatly enhances the use experience of users.

It should be noted that the present utility model is not limited to the above embodiments, and those skilled in the art can make other changes according to the inventive spirit of the present utility model, and these changes according to the inventive spirit of the present utility model should be included in the scope of the present utility model as claimed.

Claims (10)

1. The utility model provides a desktop air-cooler with cold aurora effect, includes fan frame, refrigerating plant locates in the fan frame, its characterized in that still includes cold aurora simulation structure, cold aurora simulation structure includes a plurality of light emitting component, rotation leaded light reflector element and drive the pivoted power piece of rotation leaded light reflector element, the fan frame has printing opacity window and cold wind export, leaded light reflector element rotatably installs in the fan frame, leaded light reflector element has light refraction structure and light reflection structure, light refraction structure includes hollow printing opacity barrel, the light that the light emitting component sent is through the refraction more than twice of the section of thick bamboo wall of printing opacity barrel and is emergent, light reflection structure includes a plurality of indent cambered surface and a plurality of light emitting component correspondence, the light that the light emitting component sent is through light refraction structure and light reflection structure and the emergence of formation cold aurora effect, refrigerating plant's refrigeration wind is followed the export, through printing opacity window shows cold aurora effect.

2. The desktop air cooler with an aurora cooling effect according to claim 1, wherein the number of the plurality of light emitting elements is n, the number of the plurality of concave cambered surfaces is m x n, m and n are both greater than or equal to 3, the plurality of concave cambered surfaces are divided into n groups, each group is m, the m concave cambered surfaces in each group are uniformly distributed on the same cross-section circumference of the light-transmitting barrel, the arrangement phases of the adjacent groups of concave cambered surfaces differ by 360/m so that the adjacent concave cambered surfaces are in a staggered distribution form, and each light emitting element corresponds to the position of one group of concave cambered surfaces.

3. The desktop air cooler with the aurora cooling effect according to claim 2, wherein the plurality of concave cambered surfaces in each group are sequentially and seamlessly connected in the circumferential direction of the same section, a straight line which is flush with the outer circumferential surface of the light-transmitting cylinder is arranged at the connection position, and the radial section of the lowest concave cambered surface in each group is a regular polygonal arc.

4. A desktop air cooler with a cold polarized light effect according to claim 3, wherein the fan frame comprises a middle frame, the cold polarized light simulation structure is mounted at the top of the middle frame, the middle frame is provided with a front inner frame and a rear inner frame which are assembled into a whole, the front inner frame comprises a backlight plate and an exhaust structure, the top of the backlight plate is positioned at the inner side of the cold polarized light simulation structure, light emitted by the cold polarized light simulation structure forms a light curtain on the backlight plate, a light effect space is formed between the light transmission window and the backlight plate, and the light emitted by the cold polarized light simulation structure forms a stereoscopic cold polarized light curtain in the light effect space.

5. The desktop air cooler with cold polar light effect according to claim 1, wherein the concave cambered surface is in a wavy form that the middle is low and the two sides are gradually raised along the axial direction, the concave cambered surface is projected to be oval on a horizontal plane, the concave cambered surface comprises a middle cambered surface and an outer ring surface, the middle cambered surface comprises a middle depression bottom surface and two side sloping surfaces, the middle depression bottom surface and the two side sloping surfaces are axially distributed along the light-transmitting barrel, the outer ring surface surrounds the middle cambered surface in a circle and is more gentle than the two side sloping surfaces, the outer ring surface is in an outwards gradually-falling cambered surface at the edge parts of the two sides of the axis of the light-transmitting barrel, and the edge parts of the outer ring surface at the two sides of the axis of the light-transmitting barrel are lower than the middle depression bottom surface.

6. The desktop air cooler with cold light effect according to claim 1, wherein the rotary light guiding and reflecting element is driven by the power element to rotate at a preset angular velocity, the angular velocity is adjustable by the controller so as to adjust the intensity effect of the cold light effect, each luminous element comprises an LED luminous chip and a lens covered on the LED luminous chip, and a plurality of luminous elements are arranged on the lamp panel side by side.

7. The desktop air cooler with cold polarized light effect as set forth in claim 4, wherein the refrigerating device comprises a hot end radiator, a cold end radiator, a semiconductor refrigerator located between the hot end radiator and the cold end radiator, the hot end radiator has a hot end heat dissipation base, the cold end radiator has a cold end heat dissipation base, heat conducting structures are respectively arranged between the hot end heat dissipation base and the semiconductor refrigerator and between the cold end heat dissipation base and the semiconductor refrigerator, the hot end radiator and the cold end radiator are respectively provided with heat dissipation fins, the rear sides of the two heat dissipation fins are respectively provided with a fan, the top surfaces of the heat dissipation fins are in an inward concave arc shape, and the cold end radiator corresponds to a cold air outlet position.

8. The desktop air cooler with a cold polarized light effect according to claim 7, wherein the fan frame comprises an outer frame, a base and a top cover, the outer frame comprises a front frame, a rear frame and two side frames which are assembled together, the light-transmitting window is arranged on the upper portion of the front frame, the cold air outlet is arranged on the lower portion of the front frame, a plurality of air outlet grid holes are formed in the lower portion of the front frame, outer frame air holes are respectively formed in the positions, corresponding to the fans, of the rear frame, inner frame air holes are respectively formed in the positions, corresponding to the fans, of the rear inner frame, outer frame air holes correspond to the inner frame air holes, a plurality of hot air holes are formed in the positions, corresponding to the hot end radiator, of each side frame, a hot air window is formed in the position, corresponding to the hot end radiator, of the side face of the middle frame, and the top cover is arranged on the top of the middle frame.

9. The desktop air cooler with cold polarized light effect as set forth in claim 8, wherein the top of the middle frame is provided with a lamp panel and a control main board, the control main board is provided with a plurality of keys and a display screen, the top cover is provided with through holes exposing the keys and the display screen, and the keys comprise a light control key, a power key and an air speed key.

10. The desktop air cooler with cold light effect according to claim 1, wherein each light emitting element circularly emits light of different colors under the control of the control main board, and a plurality of the light emitting elements emit light of different colors according to time sequences respectively.