A flow guide structure and cooling fan

Abstract

The present invention relates to the field of household appliances, and in particular to a guide structure and a cooling fan, which are installed between a water leakage hole of the cooling fan and a wet curtain, and include a transmission mechanism and a guide member connected to the transmission mechanism; the transmission mechanism is used to extend and retract the guide member longitudinally, and the extension path of the guide member intersects with the path of water drops dripping from the water leakage hole, so that when the guide member is extended, the water flow is guided to flow into a water tank below the cooling fan; when the cooling fan is missing the wet curtain, the guide member can be pulled out, and the extension path of the guide member passes through the path of water drops dripping from the water leakage hole, and the water drops drip onto the guide member, and the guide member guides the water drops to flow into the water tank of the cooling fan, so as to avoid the safety hazard that the water flowing from the water leakage hole is sucked into the fan, causing the fan to fail or be damaged, and at the same time reduce or eliminate the noise generated by the direct dripping of water drops; when the wet curtain is installed, the guide member can be contracted by the transmission mechanism, and the water dripping from the water leakage hole drips onto the wet curtain, thereby ensuring the cooling function of the cooling fan.

Description

Technical Field

[0001] The invention relates to the field of household appliances, and in particular to a flow guide structure and a cooling fan. Background Art

[0002] In the hot summer, in addition to air conditioning, people begin to use various fans to relieve heat and cool down. Among them, evaporative cooling fans have the functions of cooling and humidifying compared with traditional fans, and are becoming more and more popular. In order to achieve the function of blowing out cold air and cooling, cold fans need to place wet curtains at the air inlet and drip water from the top of the wet curtains to moisten them. Because the wet curtains are detachable and replaceable parts, there may be cases where users forget to install the wet curtains, resulting in water dripping directly and making abnormal noises, or directly sucking water into the machine and spraying it out from the air outlet, affecting the user's comfort. Summary of the invention

[0003] The object of the present invention is to provide a flow guide structure and a cooling fan, which can solve the noise and splashing problems caused by dripping water when a wet curtain is not installed.

[0004] The embodiment of the present invention is achieved as follows:

[0005] A flow guide structure is installed between the water leakage hole of the cooling fan and the wet curtain, and comprises a transmission mechanism and a flow guide member connected to the transmission mechanism;

[0006] The transmission mechanism is used to make the guide member extend and retract longitudinally, and the extension path of the guide member intersects with the path of water drops dripping from the water leakage hole, so that the guide member guides the water flow to the water tank below the cooling fan when it is extended.

[0007] Furthermore, in an embodiment of the present invention, the transmission mechanism includes a shaft frame and a reel rotatably mounted on the shaft frame, and the flow guide is wound and connected to the reel.

[0008] Furthermore, in an embodiment of the present invention, the guide member is a roller blind structure, and the guide member extends longitudinally and tilted relative to the roller.

[0009] Furthermore, in an embodiment of the present invention, an end rod is installed on a side of the guide member away from the reel.

[0010] Furthermore, in an embodiment of the present invention, the transmission mechanism further comprises a coil spring connected to the shaft frame and the reel respectively, and when the flow guide member is extended, the coil spring is compressed via the reel.

[0011] Furthermore, in an embodiment of the present invention, the shaft frame is provided with a boss for connecting with the coil spring, and the winding shaft is provided with a key pin for connecting with the coil spring.

[0012] Furthermore, in an embodiment of the present invention, the transmission mechanism further includes a gear mounted on the reel and a chain cooperating with the gear.

[0013] A cooling fan comprises the above-mentioned flow guiding structure.

[0014] Furthermore, in an embodiment of the present invention, the cooling fan comprises a mounting shell for mounting a wet curtain, and the flow guide structure is mounted on the inner side below the water leakage hole of the mounting shell.

[0015] Furthermore, in an embodiment of the present invention, the mounting shell is provided with a fixing member for engaging with the extended flow guide member.

[0016] The beneficial effects of the embodiments of the present invention are:

[0017] The guide structure is installed below the water leakage hole of the cooling fan. The guide piece is extended and retracted longitudinally through the transmission mechanism. When the cooling fan misses the wet curtain, the guide piece can be pulled out. The extension path of the guide piece passes through the path where water droplets drip from the water leakage hole. The water droplets drip onto the guide piece, and the guide piece guides the water droplets into the water trough of the cooling fan to avoid the safety hazard of the water flowing out of the water leakage hole being sucked into the fan, causing the fan to fail or be damaged, and at the same time reduce or eliminate the noise caused by the direct dripping of water droplets. When the wet curtain is installed, the guide piece can be contracted through the transmission mechanism, and the water dripping from the water leakage hole drips onto the wet curtain, ensuring the normal use of the cooling function of the cooling fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the installation structure of the guide structure according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the extended state of the flow guide structure according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the transmission mechanism structure of an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the coil spring arrangement structure according to an embodiment of the present invention.

[0023] Icon: 100 - installation shell; 200 - flow guide structure;

[0024] 110-leakage hole; 120-fixing part;

[0025] 210 - transmission mechanism; 220 - flow guide;

[0026] 211 - shaft frame; 212 - reel; 213 - end rod; 214 - coil spring; 215 - boss; 216 - key pin; 211'1 - shaft hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Embodiment 1:

[0032] Please refer to Figure 1 -4. This embodiment provides a guide structure 200 and a cold fan. The guide structure 200 is installed below the water leakage hole 110 of the cold fan. The guide member 220 is longitudinally extended and retracted by the transmission mechanism 210. When the cold fan is missing the wet curtain, the guide member 220 can be pulled to extend. The extension path of the guide member 220 passes through the path of water droplets dripping from the water leakage hole 110. The water droplets drip onto the guide member 220. The guide member 220 guides the water droplets to flow into the water tank of the cold fan to avoid the safety hazard of the water flowing from the water leakage hole 110 being sucked into the fan, causing the fan to fail or be damaged, and at the same time reduce or eliminate the noise generated by the direct dripping of water droplets. When the wet curtain is installed, the guide member 220 can be contracted by the transmission mechanism 210, and the water dripping from the water leakage hole 110 drips onto the wet curtain, thereby ensuring the normal use of the cooling function of the cold fan.

[0033] The cooling fan includes a mounting shell 100 and a flow guide structure 200. The flow guide structure 200 includes a transmission mechanism 210 and a flow guide member 220. The transmission mechanism 210 includes a shaft frame 211, a reel 212, an end rod 213, a coil spring 214, a boss 215 and a key pin 216. The flow guide member 220 is wound around the reel 212. The rotation of the reel 212 can realize the retraction and extension of the flow guide member 220. The mounting shell 100 is provided with a fixing member 120 for fixing the extended flow guide member 220.

[0034] refer to Figure 1 As shown, the guide structure 200 is installed on the inner side below the leakage hole 110 of the installation shell 100. When the cooling fan misses the wet curtain, the guide member 220 can be pulled to extend longitudinally and tilted so that water droplets from the leakage hole 110 fall onto the guide member 220, and the guide member 220 guides the water droplets to flow into the water tank of the cooling fan.

[0035] Figure 2It is a schematic diagram of the extended state of the guide member 220, the shaft frame 211 is installed on the shell, the reel 212 can be rotatably installed on the shaft frame 211, one end of the guide member 220 is fixed to the reel 212, the other end of the guide member 220 is installed with an end rod 213, the fixing member 120 is a hook-shaped structure, when the guide member 220 is extended, the end rod 213 can be hooked by the fixing member 120, the water droplets from the leakage hole 110 fall onto the guide member 220, and the guide member 220 guides the water droplets to flow into the water tank of the cooling fan.

[0036] refer to Figure 3 and Figure 4 As shown, the opposite ends of the shaft frame 211 are respectively provided with shaft holes 211'1 for connecting with the reel 212, and the two ends of the reel 212 are installed at the shaft hole 211'1 of the shaft frame 211, and the reel 212 and the shaft hole 211'1 are clearance-matched, and the two ends of the reel 212 are respectively connected with coil springs 214, and the coil spring 214 is installed on the shaft frame 211; the shaft frame 211 is provided with a boss 215 at the shaft hole 211'1, one end of the coil spring 214 is connected to the boss 215, and the end of the reel 212 is provided with a key pin 216, and the other end of the coil spring 214 is connected to the key pin 216. When the guide member 220 is extended, the reel 212 rotates to drive the coil spring 214 to compress. When the guide member 220 needs to be reeled, the end rod 213 is separated from the fixing member 120, and the reel 212 rotates under the action of the coil spring 214, so that the guide member 220 is wound around the reel 212.

[0037] In this embodiment, the coil spring 214 can also be replaced by a gear and a chain, a gear is installed on the reel 212, the chain cooperates with the gear, and the reel 212 is rotated by pulling the chain to realize the retraction and extension of the guide member 220. The guide member 220 is a rolling curtain structure, which can be a waterproof cloth or a waterproof plastic.

[0038] In this embodiment, a cooling fan is provided, comprising the above-mentioned flow guiding structure 200 .

[0039] In summary, in the present scheme, the guide structure 200 is arranged between the water leakage hole 110 of the cold fan and the wet curtain. When the wet curtain is not installed, the guide member 220 is extended to form an inclined plane structure below the water leakage hole 110, and the water dripping from the water leakage hole 110 flows into the water tank below the cold fan, thereby avoiding the safety hazard of the water flowing from the water leakage hole 110 being sucked into the fan and causing the fan to fail or be damaged, and at the same time reducing or eliminating the noise generated by the direct dripping of water droplets; when the wet curtain is installed, the guide member 220 is automatically retracted on the reel 212 under the action of the winding spring 214, and the water in the water leakage hole 110 can flow to the wet curtain without affecting the cooling function of the cold air.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flow guide structure installed between a cooling fan water leakage hole (110) and a wet curtain, characterized in that: It comprises a transmission mechanism (210) and a flow guide member (220) connected to the transmission mechanism (210); The transmission mechanism (210) is used to make the guide member (220) extend and retract longitudinally, and the extension path of the guide member (220) intersects with the path of water drops dripping from the water leakage hole (110), so that when the guide member (220) is extended, the water flow is guided to flow into the water tank of the cooling fan. The transmission mechanism (210) comprises an axis frame (211), a reel (212) rotatably mounted on the axis frame (211), and a gear mounted on the reel (212). The guide member (220) is wound around and connected to the reel (212). The guide member (220) is a rolling curtain structure, and the guide member (220) extends longitudinally at an angle relative to the reel (212).

2. The flow guiding structure according to claim 1, characterized in that: An end rod (213) is installed on a side of the flow guide (220) away from the reel (212).

3. The flow guiding structure according to claim 1, characterized in that: The transmission mechanism (210) further comprises a coil spring (214) respectively connected to the shaft frame (211) and the reel (212); when the flow guide (220) is extended, the reel spring (214) is driven to be compressed via the reel (212).

4. The flow guiding structure according to claim 3, characterized in that: The shaft frame (211) is provided with a boss (215) for connecting to the coil spring (214), and the reel (212) is provided with a key pin (216) for connecting to the coil spring (214).

5. The flow guiding structure according to claim 1, characterized in that: The transmission mechanism (210) also includes a chain that cooperates with the gear.

6. A cooling fan, characterized in that: It comprises the flow guiding structure (200) as described in any one of claims 1 to 5.

7. The cooling fan according to claim 6, characterized in that: The cooling fan comprises a mounting shell (100) for mounting a wet curtain, and the flow guide structure (200) is mounted on the inner side below the water leakage hole (110) of the mounting shell (100).

8. The cooling fan according to claim 7, characterized in that: The installation shell (100) is provided with a fixing piece (120) for clamping with the extended flow guide piece (220).

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