Cooling fan

Abstract

The present application belongs to the technical field of indoor temperature control, and particularly relates to a cooling fan, which comprises a machine body, a heat exchange loop and a fan arranged in the machine body, the heat exchange loop comprising an insulation box, a pump body and a water discharge heat exchanger; at least two cold conducting plates are arranged in the insulation box, and a cold source is arranged between two adjacent cold conducting plates for cooling the cold conducting plates; a flow channel is arranged in the cold conducting plate for filling with a cold carrier; the pump body is connected with the cold conducting plate for driving the cold carrier to the water discharge heat exchanger; the water discharge heat exchanger is arranged at an air outlet of the fan for cooling the air blown out through the air outlet. The cooling fan provided by the present application has small overall volume, high heat exchange efficiency and good refrigeration effect, and can effectively realize local area cooling and save energy.

Description

Technical Field

[0001] This invention belongs to the field of indoor temperature control technology, and specifically relates to a cooling fan. Background Technology

[0002] With the continuous development and progress of society, people's material living standards have been significantly improved. Air conditioning, as a household appliance that improves people's quality of life, has become widely popular and used. In order to meet various needs, air conditioning technology is also constantly being innovated and reformed. For example, for local cooling and heat dissipation, a miniature air conditioning fan has been developed, which uses ice crystal packs as heat exchange medium or cold source. It can be used in conjunction with an exhaust fan to achieve the effect of local cooling.

[0003] However, traditional air conditioning fans immerse the cold source in a refrigerant tank. On the one hand, this results in a large refrigerant tank, making the air conditioning fan bulky. On the other hand, when using the cold source to cool the refrigerant, the cold source cannot quickly cool too much refrigerant, resulting in a slow cooling rate and preventing the air conditioning fan from achieving a good cooling effect. Summary of the Invention

[0004] To address the aforementioned problems, reduce the overall size of the air conditioning fan, and improve its cooling effect, this invention provides a cooling fan, comprising: a body, and a heat exchange circuit and a fan disposed within the body.

[0005] The heat exchange circuit includes an insulation box, a pump body, and a water drain heat exchanger;

[0006] The heat insulation box is equipped with at least two cold-conducting plates, and a cold source is provided between two adjacent cold-conducting plates for cooling the cold-conducting plates; the cold-conducting plates have built-in flow channels for filling with refrigerant.

[0007] The pump body is connected to the cooling plate and is used to drive the refrigerant to the water outlet heat exchanger.

[0008] The water-cooled heat exchanger is located at the air outlet of the fan and is used to cool the air blown out through the air outlet.

[0009] According to the cooling fan provided by the present invention, the heat insulation box further includes:

[0010] The fixing plate includes at least two plates, which are horizontally arranged at opposite ends of the heat insulation box;

[0011] The cooling plates are all disposed between the two fixed plates, and the cooling plates adjacent to the fixed plates are connected to the fixed plates by springs.

[0012] According to the cooling fan provided by the present invention, the heat insulation box further includes:

[0013] The door is connected to the cooling plate via a transmission structure and is used to compress the spring when the door is opened, so as to increase the space between two adjacent cooling plates.

[0014] When the door is closed, the spring is released to reduce the space between two adjacent cold-conducting plates, thereby clamping the cold source.

[0015] According to the cooling fan provided by the present invention, the transmission structure includes: a drive rod, a small gear, a large gear, a moving rod, and a connecting rod;

[0016] The drive rod, the pinion, and the gear are disposed outside the heat insulation box;

[0017] The movable rod and the connecting rod are disposed inside the heat insulation box;

[0018] One end of the drive rod is connected to the box door, and the other end of the drive rod is connected to the pinion gear;

[0019] The pinion and the gear mesh with each other;

[0020] The large gear can move vertically up and down under the drive of the small gear;

[0021] The movable rod passes through the heat insulation box and is connected to the large gear, and can move vertically up and down under the drive of the large gear;

[0022] The connecting rod extends vertically from the movable rod, passes through the fixed plate, and connects to the cooling plate;

[0023] The cold guide plate can be driven to move vertically up and down under the drive of the moving rod.

[0024] According to the cooling fan provided by the present invention, a water collection tray is provided at the bottom of the heat insulation box for receiving dripping water generated by the cold source;

[0025] The water collection tray, the heat insulation box, and the machine body are respectively provided with drainage holes, and the drainage holes are connected by pipes;

[0026] The water collected in the water collection tray is discharged from the heat insulation box through the pipe.

[0027] According to the cooling fan provided by the present invention, the heat insulation box is provided with an insulation layer structure on its exterior.

[0028] According to the cooling fan provided by the present invention, the flow channel in the cooling plate is a corrugated curved flow channel, and includes at least four flow channels;

[0029] The flow channels are interconnected and spaced apart along the length of the cooling plate.

[0030] According to the cooling fan provided by the present invention, the pump body is provided with a speed switch for adjusting the flow rate of the refrigerant.

[0031] According to the cooling fan provided by the present invention, the pipes of the water-cooled heat exchanger are flat pipes, and heat-conducting ribs are connected between adjacent pipes, the heat-conducting ribs being sheet-like.

[0032] According to the cooling fan provided by the present invention, the pipes of the water-cooled heat exchanger are in the form of a dense mesh.

[0033] The beneficial effects of this invention are:

[0034] The cooling fan provided by this invention places a cold source and a cooling plate in an insulated box. A refrigerant is injected into the cooling plate, and the refrigerant in the cooling plate is cooled by the cold source. The pump body drives the refrigerant in the cooling plate to be transported along the pipeline to the water outlet heat exchanger by the suction action of the pump body. The air blown out by the fan passes through the water outlet heat exchanger for heat exchange and cooling, and finally blows out cold air to achieve the effect of local cooling.

[0035] In the cooling fan provided by this invention, a refrigerant is injected into a cooling plate, forming an independent closed-loop circulation circuit driven by a pump. On the one hand, during the refrigerant delivery process, the air blown out by the fan does not directly contact the refrigerant, ensuring that the air cooled by heat exchange with the refrigerant is not damp, and the air source is cleaner and fresher. On the other hand, there is no loss of refrigerant during delivery, eliminating the need for frequent replenishment, resulting in good cooling effect and durability of the cooling fan. Furthermore, filling the cooling plate with refrigerant compresses its volume, making the overall size of the cooling fan smaller. Placing the cold source between two adjacent cooling plates, with direct contact between the cold source and the cooling plates, allows the refrigerant to cool down rapidly, ensuring that the air cooled by heat exchange with the refrigerant is cool and refreshing, resulting in good cooling effect of the cooling fan. Placing the cold source and cooling plate in an insulated box reduces heat loss, further enhancing the cooling effect of the cooling fan.

[0036] The cooling fan provided by this invention has a small overall size, high heat exchange efficiency, and good cooling effect. It can effectively cool local areas and save energy. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in this invention or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a front view of the overall structure of the cooling fan provided by the present invention;

[0039] Figure 2 This is a side view of the overall structure of the cooling fan provided by the present invention;

[0040] Figure 3 This is a schematic diagram of the external structure of the heat insulation box in the cooling fan provided by the present invention;

[0041] Figure 4 This is a schematic diagram of the internal structure of the heat insulation box in the cooling fan provided by the present invention;

[0042] Figure 5 This is a schematic diagram of the structure of the cooling plate in the cooling fan provided by the present invention.

[0043] Reference numerals: 100, Body; 200, Fan; 300, Pump body; 400, Insulation box; 401, Cooling plate; 402, Cold source; 403, Spring; 404, Fixing plate; 405, Door; 500, Water-cooled heat exchanger; 600, Transmission structure; 601, Drive rod; 602, Pinion gear; 603, Gear; 604, Moving rod; 605, Connecting rod; 700, Casters. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0045] In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "vertical," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0047] Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of the different embodiments or examples, without contradiction.

[0048] The cooling fan provided by the present invention will now be described with reference to the accompanying drawings.

[0049] like Figures 1-2 As shown, a front view and a side view of the overall structure of the cooling fan are provided respectively. Figures 1-2 This cooling fan includes: a body 100, and a heat insulation box 400, a water-cooled heat exchanger 500, a pump body 300, and a fan 200 disposed in the body 100. The heat insulation box 400 includes: a cooling plate 401, a cold source 402, and a fixing plate 404. The cooling plate 401 includes at least two pieces and is connected to the fixing plate 404 by a spring 403. The cold source 402 is disposed between two adjacent cooling plates 401. Each cooling plate 401 is made of a metal structure with a high thermal conductivity and has a built-in flow channel for filling with refrigerant. The cooling plate 401 carries the refrigerant and conducts the cold energy of the cold source 402 to the refrigerant, thereby achieving the cooling of the refrigerant. Each cooling plate 401 is connected to the pump body 300 through an independent pipeline to form an independent closed loop. Through the suction action of the pump body 300, the refrigerant in the cooling plate 401 is transferred to the water outlet heat exchanger 500 through the pipeline. The water outlet heat exchanger 500 is located at the air outlet of the fan 200. The room temperature air blown out by the fan 200 undergoes heat exchange at the water outlet heat exchanger 500, which ultimately causes the fan to blow out cold air.

[0050] Furthermore, an ice pack can be selected as the cold source 402. As the refrigerant continuously circulates and exchanges heat, the phase change volume of the ice pack will decrease, resulting in an air layer between the cold-conducting plate 401 and the cold source 402. Condensation will also precipitate on the surface of the ice pack. Since air has a very low thermal conductivity, and the condensation also increases thermal resistance, this reduces the heat transfer capacity of the cold source 402, ultimately reducing its cooling efficiency and worsening the cooling effect of the fan. However, by connecting the cold-conducting plate 401 with a spring 403, as the phase change volume of the cold source 402 decreases, the spring 403 maintains a continuous fit between the cold-conducting plate 401 and the cold source 402, ensuring the final cooling effect.

[0051] In addition, casters 700 are provided at the bottom of the unit 100 to facilitate the movement of the cooling fan.

[0052] like Figures 3-4 As shown, a schematic diagram of the external structure and an internal structure of the heat insulation box 400 in the cooling fan are provided. (Refer to...) Figures 3-4 An insulated box 400 is provided with a door 405. The opening and closing of the door 405 enables communication and isolation between the interior of the insulated box 400 and the external environment, facilitating the placement and removal of the cold source 402, and ensuring the internal insulation of the insulated box 400. The door 405 is connected to the cold-conducting plate 401 through a transmission structure 600. With this structure, when the door 405 is open, the transmission structure 600 controls the cold-conducting plate 401 to move up and down and compress the spring 403, thereby increasing the space between two adjacent cold-conducting plates 401, making it easier to place and remove the cold source 402. When the door 405 is closed, the transmission structure 600 controls the cold-conducting plate 401 to move up and down and release the spring 403, thereby decreasing the space between two adjacent cold-conducting plates 401, clamping the cold source 402, and keeping the contact surfaces of the cold-conducting plate 401 and the cold source 402 in continuous contact.

[0053] Specifically, the transmission structure 600 includes: a drive rod 601, a pinion 602, a gear 603, a moving rod 604, and a connecting rod 605. The drive rod 601, pinion 602, and gear 603 are located outside the heat insulation box 400, while the moving rod 604 and connecting rod 605 are located inside the heat insulation box 400. Further, one end of the drive rod 601 is connected to the box door 405, and the other end of the drive rod 601 is connected to the pinion 602. The pinion 602 and gear 603 mesh with each other. The gear 603 can move vertically up and down under the drive of the pinion 602. The moving rod 604 passes through the heat insulation box 400 and connects to the gear 603, and can move vertically up and down under the drive of the gear 603. The connecting rod 605 extends vertically from the moving rod 604, passes through the fixed plate 404, and connects to the cooling plate 401, and can drive the cooling plate 401 to move vertically up and down under the drive of the moving rod 604.

[0054] like Figure 5 As shown, a structural schematic diagram of the cooling plate 401 in the cooling fan is provided. Figure 5 The inner flow channel of the cold guide plate 401 is set as a corrugated curve type flow channel. This can enhance the turbulence through bending and improve the heat exchange efficiency of the refrigerant. It is understood that the form of the inner flow channel is not limited to this.

[0055] To better understand the above technical solutions, the specific implementation methods of the cooling fan will be explained in detail below.

[0056] According to one aspect of the embodiments provided by the present invention, referring to Figures 1-5 A cooling fan is provided, comprising: a body 100, and a heat exchange circuit and a fan 200 disposed in the body 100. The heat exchange circuit includes an insulation box 400, a pump body 300, and a water-cooled heat exchanger 500. At least two cooling plates 401 are disposed in the insulation box 400, and a cold source 402 is disposed between two adjacent cooling plates 401 for cooling the cooling plates 401. The cooling plates 401 have built-in flow channels for charging refrigerant. The pump body 300 is connected to the cooling plates 401 for driving the refrigerant to the water-cooled heat exchanger 500. The water-cooled heat exchanger 500 is disposed at the air outlet of the fan 200 for cooling the air blown out through the air outlet.

[0057] Traditional air conditioning fans immerse the cold source directly in the refrigerant tank. On the one hand, this results in a large refrigerant tank, making the air conditioning fan bulky. On the other hand, when using the cold source to cool the refrigerant, the cold source cannot quickly cool too much refrigerant, resulting in a slow cooling rate and preventing the air conditioning fan from achieving a good cooling effect.

[0058] To solve the above problems, the cooling fan provided in this embodiment sets the cold source 402 and the cooling plate 401 in the heat insulation box 400. The cooling plate 401 is injected with a refrigerant, and the refrigerant in the cooling plate 401 is cooled by the cold source 402. The pump body 300 drives the refrigerant in the cooling plate 401 to be transported along the pipeline to the water outlet heat exchanger 500 by the suction action of the pump body 300. The air blown out by the fan 200 passes through the water outlet heat exchanger 500 for heat exchange and cooling, and finally blows out cold air to achieve the effect of local cooling.

[0059] In the cooling fan provided in this embodiment, a refrigerant is injected into the cooling plate 401, forming an independent closed-loop circulation circuit driven by the pump 300. On one hand, during the refrigerant delivery process, the air blown out by the fan 200 does not directly contact the refrigerant, resulting in a dry air source after heat exchange and cooling. On the other hand, there is no refrigerant loss during delivery, eliminating the need for frequent replenishment, thus ensuring good cooling effect and durability of the cooling fan. Furthermore, the refrigerant... The refrigerant is filled into the cooling plate 401, which compresses the volume of the refrigerant, making the overall size of the cooling fan small. The cold source 402 is placed between two adjacent cooling plates 401, and the cold source 402 and the cooling plate 401 are in direct contact, which allows the refrigerant to cool down quickly. This ensures that the air after heat exchange with the refrigerant is cool and has a good cooling effect. Placing the cold source 402 and the cooling plate 401 in the heat insulation box 400 can reduce heat loss and make the cooling fan have a good cooling effect.

[0060] The cooling fan provided in this embodiment has a small overall size, high heat exchange efficiency, and good cooling effect. It can effectively cool local areas and save energy.

[0061] According to the cooling fan provided in this embodiment, a specific connection method of the cooling plate 401 in the heat insulation box 400 is provided. The heat insulation box 400 also includes:

[0062] The fixing plate 404 includes at least two pieces, which are horizontally arranged at opposite ends of the heat insulation box 400 respectively; the cooling plate 401 is arranged between the two fixing plates 404, and the cooling plate 401 adjacent to the fixing plate 404 is connected to the fixing plate 404 by a spring 403.

[0063] By setting a fixing plate 404, it is easy to connect the cooling plate 401. Specifically, the cooling plate 401 is connected to the fixing plate 404 by a spring 403. That is, one end of the spring 403 is connected to the cooling plate 401, and the other end of the spring 403 is connected to the fixing plate 404. The fixing plate 404 can fix and constrain the spring 403 and the cooling plate 401.

[0064] Since the refrigerant in the cooling plates 401 is cooled by a cold source 402 clamped between two adjacent cooling plates 401 (the cold source 402 can be an ice pack), the latent heat of the solid phase change of the ice in the ice pack releases cold energy to cool the refrigerant. As the number of cooling cycles increases and the time becomes longer, the ice melts due to heat transfer, and water droplets are generated on the surface of the ice pack. Because the volume of the melted ice is smaller, the cooling plates 401 and the cold source 402 are no longer in close contact. Furthermore, because air has a very low thermal conductivity, the condensate on the surface of the cold source 402 also increases the thermal resistance, ultimately reducing the cooling effect of the cold source 402 on the refrigerant. In this embodiment, the cooling plates 401 are connected to the fixed plate 404 by a spring 403. This ensures that even if the volume of the ice pack decreases, the elasticity of the spring 403 will maintain the clamping of the cooling plates 401 with the cold source 402, thereby improving the cooling effect of the cold source 402.

[0065] In this embodiment, two or more cold-conducting plates 401 can be provided. When two cold-conducting plates 401 are provided, a cold source 402 can be provided to clamp between the two cold-conducting plates 401. When n cold-conducting plates 401 are provided, n-1 cold sources 402 can be provided to ensure that a cold source 402 is clamped between every two adjacent cold-conducting plates 401. For example, if three cold-conducting plates 401 are provided, then two cold sources 402 are provided accordingly. The connection order from top to bottom includes: cold-conducting plate 401-cold source 402-cold-conducting plate 401-cold source 402-cold-conducting plate 401. In addition, to save on the number of cold sources 402, the number of cold sources 402 can be appropriately reduced. For example, if four cold-conducting plates 401 are set, then three cold sources 402 can be set accordingly, or two cold sources 402 can be set. When three cold sources 402 are set, their connection order from top to bottom includes: cold-conducting plate 401-cold source 402-cold-conducting plate 401-cold source 402-cold-conducting plate 401-cold source 402-cold-conducting plate 401. When two cold sources 402 are set, their connection order from top to bottom includes: cold-conducting plate 401-cold source 402-cold-conducting plate 401-air layer-cold-conducting plate 401-cold source 402-cold-conducting plate 401. That is, there is a situation where two cold-conducting plates 401 are in direct contact. The situation where multiple cold-conducting plates 401 correspond to multiple cold sources 402 can be deduced in the same way, as long as the cold source 402 can quickly cool the refrigerant in the cold-conducting plate 401.

[0066] According to the cooling fan provided in this embodiment, the heat insulation box 400 also includes: a box door 405, which is connected to the cooling plate 401 through a transmission structure 600. The box door 405 is used to compress the spring 403 when the box door 405 is opened, so that the area space between two adjacent cooling plates 401 increases; and to release the spring 403 when the box door 405 is closed, so that the area space between two adjacent cooling plates 401 decreases, thereby clamping the cold source 402.

[0067] In order to facilitate the placement and replacement of the cold source 402, and to improve the overall insulation performance of the insulation box 400, an openable and closable door 405 is provided on the insulation box 400. The opening and closing of the door 405 can connect and isolate the interior of the insulation box 400 from the external environment. Furthermore, the door 405 is connected to the cold-conducting plate 401 via the transmission structure 600. When the door 405 is opened, the door 405 drives the transmission structure 600, which in turn drives the cold-conducting plate 401 and compresses the spring 403. This causes the cold-conducting plate 401 above the cold source 402 to move upward and the cold-conducting plate 401 below the cold source 402 to move downward, thereby increasing the space at the cold source 402 and facilitating the placement and removal of the cold source 402. Similarly, when the door 405 is closed, the door 405 drives the transmission structure 600, which in turn drives the cold-conducting plate 401 and releases the spring 403. This causes the cold-conducting plate 401 above the cold source 402 to move downward and the cold-conducting plate 401 below the cold source 402 to move upward, achieving clamping between the cold source 402 and the cold-conducting plate 401 and maintaining continuous contact between the contact surfaces.

[0068] According to the cooling fan provided in this embodiment, a specific structure of a transmission structure 600 is provided. The transmission structure 600 includes: a drive rod 601, a pinion 602, a gear 603, a moving rod 604, and a connecting rod 605. The drive rod 601, pinion 602, and gear 603 are disposed outside the heat insulation box 400, and the moving rod 604 and connecting rod 605 are disposed inside the heat insulation box 400. One end of the drive rod 601 is connected to the box door 405, and the other end of the drive rod 601... It is connected to the pinion 602; the pinion 602 and the large gear 603 mesh with each other; the large gear 603 can move vertically up and down under the drive of the pinion 602; the moving rod 604 passes through the heat insulation box 400 and is connected to the large gear 603, and can move vertically up and down under the drive of the large gear 603; the connecting rod 605 extends vertically from the moving rod 604, passes through the fixed plate 404, and is connected to the cooling plate 401, and can drive the cooling plate 401 to move vertically up and down under the drive of the moving rod 604.

[0069] Specifically, the transmission structure 600 includes two parts, which are respectively installed at the upper and lower ends of the heat insulation box 400. The upper transmission structure 600 is used to control the cold guide plate 401 on the upper part of the cold source 402 to move up and down, and the lower transmission structure 600 is used to control the cold guide plate 401 on the lower part of the cold source 402 to move up and down.

[0070] Furthermore, a slot is provided on the body of the heat insulation box 400. Under the driving action of the pinion 602, the large gear 603 can move up and down along the slot, thereby driving the moving rod 604 to move up and down. The moving rod 604 and the large gear 603 are connected and stabilized by a fixed block. Taking the lower transmission structure 600 as an example, the moving rod 604 is set at the bottom of the heat insulation box 400 and located below the fixed plate 404. A connecting rod 605 extends from the moving rod 604. The connecting rod 605 passes through the fixed plate 404 and connects to the cold guide plate 401 at the bottom of the cold source 402. In this way, the moving rod 604 can indirectly drive the cold guide plate 401 to move up and down.

[0071] The upper transmission structure 600 and the lower transmission structure 600 have similar motion principles. In the upper transmission structure 600, the moving rod 604 is set at the top of the heat insulation box 400 and above the fixed plate 404. A connecting rod 605 extends from the moving rod 604 and passes through the fixed plate 404 to connect with the cold guide plate 401 above the cold source 402. In this way, the cold guide plate 401 can be indirectly driven to move up and down through the moving rod 604.

[0072] With this structure, when the door 405 is opened, the upper transmission structure 600 drives the cold guide plate 401 above the cold source 402 to move upward, and the lower transmission structure 600 drives the cold guide plate 401 below the cold source 402 to move downward, thereby increasing the space at the cold source 402 and facilitating the placement and removal of the cold source 402. Similarly, when the door 405 is closed, the upper transmission structure 600 drives the cold guide plate 401 above the cold source 402 to move downward, and the lower transmission structure 600 drives the cold guide plate 401 below the cold source 402 to move upward, achieving clamping between the cold source 402 and the cold guide plate 401 and maintaining continuous contact between the contact surfaces.

[0073] According to the cooling fan provided in this embodiment, a water collection tray is provided at the bottom of the heat insulation box 400 to collect the dripping water generated by the cold source 402; the water collection tray, the heat insulation box 400 and the body 100 are respectively provided with drainage holes, and the drainage holes are connected through pipes to discharge the water accumulated in the water collection tray into the heat insulation box 400.

[0074] The water droplets produced when the cold source 402 melts can drip into the water collection tray at the bottom of the insulation box 400 and be discharged from the machine body 100 through the pipe, making it convenient to drain the water in the insulation box 400 and avoiding the need for manual cleaning of the water.

[0075] According to the cooling fan provided in this embodiment, the heat insulation box 400 is provided with an insulation layer structure on the outside.

[0076] By setting up an insulation layer structure, the cold air inside the insulation box 400 can be protected from the influence of the outside temperature, the melting rate of the cold source 402 can be slowed down, the heat exchange effect of the cold plate 401 can be improved, and thus the cooling effect of the cooling fan can be guaranteed.

[0077] According to the cooling fan provided in this embodiment, the flow channel in the cooling plate 401 is a corrugated curved flow channel, and includes at least four flow channels; the four flow channels are interconnected and spaced apart along the length direction of the cooling plate 401.

[0078] Setting the flow channel as a corrugated curve can enhance the turbulence through bending, thereby strengthening the heat exchange effect. By setting multiple interconnected parallel flow channels, the refrigerant can fill the entire cooling plate 401, thereby increasing the contact area between the air blown out by the fan 200 and the cooling plate 401, which can also enhance the heat exchange effect.

[0079] According to the cooling fan provided in this embodiment, the pump body 300 is equipped with a speed switch for adjusting the flow rate of the refrigerant.

[0080] To provide users with different experiences when using this fan, the pump body 300's speed setting is adjusted, thereby regulating its suction force and controlling the refrigerant flow rate, ultimately controlling the temperature of the cool air. When it's necessary to increase the temperature of the air blown out by the fan, the pump body 300 is adjusted to a low setting. In this setting, the refrigerant flow through the water-cooled heat exchanger 500 is small, resulting in a higher temperature airflow after passing through the heat exchanger. Conversely, when it's necessary to decrease the temperature of the air blown out by the fan, the pump body 300 is adjusted to a high setting. In this setting, the refrigerant flow through the water-cooled heat exchanger 500 is large, resulting in a lower temperature airflow after passing through the heat exchanger.

[0081] According to the cooling fan provided in this embodiment, a structure of a water-filled heat exchanger 500 is provided. The pipes of the water-filled heat exchanger 500 are flat pipes, and heat-conducting ribs are connected between adjacent pipes. The heat-conducting ribs are in the shape of plates.

[0082] Compared to conventional circular pipes, flat pipes have a larger outer surface area for the same flow rate, thus further improving heat exchange efficiency. Thermal fins increase the contact area with air, thereby improving the heat exchange efficiency of the water-cooled heat exchanger 500. Both the water-cooled heat exchanger 500 and the thermal fins are made of metals with high thermal conductivity. The thermal fins can be curved or corrugated sheets, which disturb the airflow during air movement, making the contact between the air and the water-cooled heat exchanger 500 more uniform.

[0083] According to the cooling fan provided in this embodiment, another structure of the water-filled heat exchanger 500 is provided, and the pipes of the water-filled heat exchanger 500 are in the form of a dense mesh.

[0084] During the air delivery process of fan 200, the flowing air passes through the gaps in the dense mesh structure and evenly contacts the water-cooled heat exchanger 500 for heat exchange, thereby improving the heat exchange efficiency of the water-cooled heat exchanger 500 and ensuring the air delivery effect of the cooling fan.

[0085] The cooling fan provided in this embodiment has advantages such as small overall size, good local cooling effect, dry and clean air source, and energy saving.

[0086] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cooling fan, characterized by, The utility model relates to a kind of air conditioner, including: Machine body (100), and heat exchange circuit and fan (200) arranged in the machine body (100), The heat exchange circuit includes heat insulation box (400), pump body (300) and water exhaust heat exchanger (500); At least two cold-lead plates (401) are arranged in the heat insulation box (400), and cold source (402) is arranged between adjacent two cold-lead plates (401), for cooling the cold-lead plate (401);Flow channel is built-in in the cold-lead plate (401), for filling refrigerant; The pump body (300) is connected with the cold-lead plate (401), for driving the refrigerant to the water exhaust heat exchanger (500); The water exhaust heat exchanger (500) is arranged at the air outlet of the fan (200), for cooling the air blown out through the air outlet; The heat insulation box (400) further includes: Fixed plate (404), the fixed plate (404) includes at least two, respectively horizontally arranged at opposite ends of the heat insulation box (400); The cold-lead plate (401) is arranged between two fixed plates (404), and the cold-lead plate (401) adjacent to the fixed plate (404) is connected with the fixed plate (404) by spring (403); The flow channel in the cold-lead plate (401) is corrugated curve type flow channel, and at least includes four flow channels; The flow channels are interconnected and are arranged along the length direction of the cold-lead plate (401) at intervals.

2. The cooling fan of claim 1, wherein, The heat insulation box (400) further includes: Box door (405), the box door (405) is connected with the cold-lead plate (401) by transmission structure (600), for compressing the spring (403) when the box door (405) is opened, so that the area space between adjacent two cold-lead plates (401) becomes larger; When the box door (405) is closed, the spring (403) is released, so that the area space between adjacent two cold-lead plates (401) becomes smaller, realizing the clamping of the cold source (402).

3. The cooling fan of claim 2, wherein, The transmission structure (600) includes: drive rod (601), pinion (602), gear (603), moving rod (604) and connecting rod (605); The drive rod (601), the pinion (602) and the gear (603) are arranged outside the heat insulation box (400); The moving rod (604) and the connecting rod (605) are arranged inside the heat insulation box (400); One end of the drive rod (601) is connected with the box door (405), and the other end of the drive rod (601) is connected with the pinion (602); The pinion (602) and the gear (603) are engaged with each other; The gear (603) can move vertically up and down under the drive of the pinion (602); The moving rod (604) passes through the heat insulation box (400) and is connected with the gear (603), and can move vertically up and down under the drive of the gear (603). The connecting rod (605) is vertically extended by the moving rod (604), passes through the fixed plate (404) and is connected with the cold guide plate (401); The cold guide plate (401) is vertically driven to move up and down under the driving of the moving rod (604).

4. The cooling fan of claim 1, wherein, The bottom of the heat insulation box (400) is provided with a water collecting tray for collecting water drops generated by the cold source (402); The water collecting tray, the heat insulation box (400) and the machine body (100) are correspondingly provided with drainage holes, and the drainage holes are communicated through pipelines; The accumulated water in the water collecting tray is discharged from the heat insulation box (400) through the pipelines.

5. The cooling fan of claim 1, wherein, The heat insulation box (400) is externally provided with a heat preservation layer structure.

6. The cooling fan according to any one of claims 1 to 5, characterized in that, The pump body (300) is provided with a gear switch for adjusting the flow size of the cold carrier.

7. The cooling fan according to any one of claims 1 to 5, characterized in that, The pipeline of the water row heat exchanger (500) is a flat pipe, and a heat conduction rib is connected between adjacent pipelines, and the heat conduction rib is in a sheet shape.

8. The cooling fan according to any one of claims 1 to 5, characterized in that, The pipeline of the water row heat exchanger (500) is in a dense mesh shape.

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