A protective structure and cooling fan

Abstract

The present invention relates to the field of household appliances, and in particular to a protective structure and a cold fan, which are arranged between a cold fan wet curtain and a top cover, and include a first magnetic switch component, which is installed at a water leakage hole of the top cover, and the first magnetic switch component is in a closed state when not subjected to external magnetic force, and blocks the water leakage hole, and a second magnetic switch component, which is used to apply magnetic force to the first magnetic switch component so that the first magnetic switch component opens the water leakage hole. In this solution, the first magnetic switch component can be switched according to the installation status of the wet curtain. When the wet curtain is not installed, the first magnetic switch component is in a closed state, and the water leakage hole is blocked. When the cold fan is used without the wet curtain installed, water is prevented from flowing to the fan motor fan, thereby solving the problems of water splashing and noise of the fan, ensuring the proper use of the fan blowing function, and improving the electrical safety of the cold fan.

Description

Technical Field

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

[0002] Common cooling fans today absorb heat through water evaporation to blow out cold air. Installing wet curtains can increase the heat exchange area and prevent water flowing down the water distribution structure from being sucked into the fan. However, the wet curtain structure of existing cooling fans is missing. The fan can still be started without the wet curtain installed. When the cooling fan is working, water will drip directly, causing abnormal noise, or water will be sucked into the machine and sprayed out from the air outlet, affecting the user's comfort and posing electrical safety hazards. Summary of the invention

[0003] The object of the present invention is to provide a protective structure and a cooling fan, which can solve the problems of noise, water splashing and electrical hazards caused by leakage of wet curtains.

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

[0005] A protective structure is arranged between a wet curtain and a top cover of a cooling fan, comprising:

[0006] A first magnetic switch component is installed at the water leakage hole of the top cover, and the first magnetic switch component is in a closed state when not subjected to external magnetic force, and blocks the water leakage hole;

[0007] The second magnetic switch component is used to apply magnetic force to the first magnetic switch component so that the first magnetic switch component opens the water leakage hole.

[0008] Furthermore, in an embodiment of the present invention, the first magnetic switch component includes a magnetic component and a sealing component connected to the magnetic component, and the magnetic component is movably mounted on the top cover.

[0009] Furthermore, in an embodiment of the present invention, the sealing member is slidably disposed above the water leakage hole, and the magnetic member is disposed on a side of the sealing member facing the water leakage hole;

[0010] The sealing member is caused to slide toward the water leakage hole by the gravity of the magnetic member to block the water leakage hole.

[0011] Furthermore, in an embodiment of the present invention, the second magnetic switch component is an electromagnetic structure, and the second magnetic switch component is installed on the top cover and is arranged below the magnetic component.

[0012] Furthermore, in an embodiment of the present invention, the protective structure further comprises an induction switch, and the induction switch controls the conduction of the circuit of the second magnetic switch component according to the electrical signal detected from the wet curtain.

[0013] Furthermore, in an embodiment of the present invention, the induction switch comprises a Hall element installed on the rear housing of the cooling fan and a sensed element installed on the wet curtain.

[0014] Furthermore, in one embodiment of the present invention, the first magnetic switch component further includes a top column and an elastic component sleeved and connected to the top column;

[0015] The top column passes through the water leakage hole and is connected to the magnetic component and the sealing component. The elastic component and the sealing component are arranged opposite to each other at the inner and outer sides of the water leakage hole. The elastic component applies elastic force to the top column and the top cover respectively to make the sealing component cover the water leakage hole.

[0016] Furthermore, in an embodiment of the present invention, the magnetic component is located outside the water leakage hole, and the sealing component is located inside the water leakage hole.

[0017] Furthermore, in an embodiment of the present invention, the magnetic component and the sealing component are respectively arranged on the outside of the water leakage hole, and the sealing component is located on the side of the magnetic component facing the water leakage hole.

[0018] Furthermore, in an embodiment of the present invention, the second magnetic switch element comprises a permanent magnet, and the second magnetic switch element is installed on the wet curtain corresponding to the first magnetic switch element.

[0019] A cooling fan comprises the above-mentioned protective structure.

[0020] The beneficial effects of the embodiments of the present invention are:

[0021] The first magnetic switch is opened or closed by magnetic force, thereby controlling the switch of the water leakage hole. The second magnetic switch is installed on the wet curtain, so that the first magnetic switch can be switched according to the installation status of the wet curtain. When the wet curtain is installed, the second magnetic switch exerts magnetic force on the first magnetic switch, so that the first magnetic switch opens the water leakage hole, and the water flowing out of the water leakage hole falls on the wet curtain, thereby ensuring the cooling function of the cooling fan. When the wet curtain is not installed, the first magnetic switch is in a closed state, the water leakage hole is blocked, and the water cannot flow out of the water leakage hole. When the cold fan is used without installing the wet curtain, water is prevented from flowing to the fan motor fan, thereby solving the problems of water splashing and noise of the fan, ensuring the proper use of the fan blowing function, and improving the electrical safety of the cold fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1 A schematic structural diagram of a first magnetic switch component according to an embodiment of the present invention;

[0024] Figure 2 For the embodiment of the present invention Figure 1 A schematic diagram of a partial structure of the installation of the first magnetic switch member;

[0025] Figure 3 For the embodiment of the present invention Figure 1 A schematic diagram of the partially enlarged structure;

[0026] Figure 4 Another structural schematic diagram of the first magnetic switch element according to an embodiment of the present invention;

[0027] Figure 5 For the embodiment of the present invention Figure 4 A schematic diagram of a local enlarged structure;

[0028] Figure 6 It is another structural schematic diagram of the second magnetic switch component according to an embodiment of the present invention.

[0029] Icon: 100 - wet curtain; 200 - top cover; 300 - first magnetic switch; 400 - second magnetic switch; 500 - induction switch; 600 - rear shell;

[0030] 210 - water leakage hole; 220 - through hole; 310 - magnetic part; 320 - sealing part; 330 - connecting column; 340 - top column; 350 - elastic part; 510 - Hall element; 520 - sensed part. DETAILED DESCRIPTION

[0031] 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.

[0032] 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] 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.

[0035] 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.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Embodiment 1:

[0038] Please refer to Figure 1 -3. This embodiment provides a protective structure and a cooling fan. The protective structure is arranged between the wet curtain 100 and the top cover 200.

[0039] The protective structure includes a first magnetic switch component 300 and a second magnetic switch component 400. The first magnetic switch component 300 is installed at the water leakage hole 210 of the top cover 200, and the second magnetic switch component 400 is installed on the wet curtain 100. When the wet curtain 100 is behind the rear shell 600 of the cooling fan, the second magnetic switch component 400 corresponds to the first magnetic switch component 300, so that the first magnetic switch component 300 can be switched according to the installation status of the wet curtain 100; when the wet curtain 100 is installed, the second magnetic switch component 400 contacts the first magnetic switch component 300. Magnetic force is applied to make the first magnetic switch component 300 open the water leakage hole 210, and the water flowing out of the water leakage hole 210 falls on the wet curtain 100, thereby ensuring the cooling function of the cooling fan; when the wet curtain 100 is not installed, the first magnetic switch component 300 is in a closed state, the water leakage hole 210 is blocked, and the water cannot flow out of the water leakage hole 210. When the cooling fan is used without installing the wet curtain 100, water is prevented from flowing to the fan motor blower, thereby solving the problems of fan splashing and noise, ensuring the proper use of the fan blowing function, and improving the electrical safety of the cooling fan.

[0040] refer to Figure 2 As shown, the first magnetic switch component 300 includes a magnetic component 310 and a sealing component 320, and the magnetic component 310 can be a permanent magnet. The top cover 200 is provided with a row of water leakage holes 210, and the sealing component 320 is correspondingly provided as a strip structure. The sealing component 320 is slidably provided above the water leakage holes 210, and the housing is provided with a connecting column 330 for slidingly cooperating with the sealing component 320. There are two connecting columns 330, which are respectively located at the two ends of a row of water leakage holes 210. The sealing component 320 is installed with a magnetic component 310 on one side facing the water leakage holes 210, and the top cover 200 is provided with a through hole 220 corresponding to the magnetic component 310. Under the action of gravity, the magnetic component 310 drives the sealing component 320 to slide downward on the connecting column 330, and the magnetic component 310 falls into the through hole 220, and the sealing component 320 is pressed on the water leakage holes 210, and the water leakage holes 210 are blocked.

[0041] refer to Figure 3 As shown, the second magnetic switch component 400 and the first magnetic switch component 300 are correspondingly arranged on the wet curtain 100. After the wet curtain 100 is installed, the second magnetic switch component 400 is located directly below the first magnetic switch component 300. According to the principle that like magnetic poles repel each other, the first magnetic switch component 300 is subjected to the magnetic force of the second magnetic switch component 400 and moves away from the second magnetic switch component 400. The first magnetic switch component 300 drives the sealing component 320 to slide upward on the connecting column 330, and the water leakage hole 210 is in an open state, so that water flows from the water leakage hole 210 to the wet curtain 100, thereby ensuring the cooling function of the cold fan.

[0042] In this embodiment, magnetic members 310 can be respectively provided at both ends of the seal member 320 in the length direction, and two second magnetic switch members 400 are correspondingly provided on the wet curtain 100. The number and position of the magnetic members 310 can also be set according to actual use conditions to ensure that the first magnetic switch member 300 can open and close the water leakage hole 210.

[0043] Further, in this embodiment, the second magnetic switch member 400 may also be an electromagnetic switch structure, the second magnetic switch member 400 is mounted on the top cover 200 and is arranged below the magnetic member, the magnetic member 310 of the first magnetic switch member 300 leaks out of the top cover 200 through the through hole 220, and the second magnetic switch member is mounted on the outside of the top cover 200 corresponding to the through hole 220, refer to Figure 3 As shown, a sensing switch 500 is provided between the rear housing 600 and the wet curtain 100. The sensing switch 500 is used to detect the installation status of the wet curtain 100. When the wet curtain 100 is installed, the sensing switch 500 controls the conduction of the circuit of the second magnetic switch component 400 according to the electrical signal detected from the wet curtain 100. The second magnetic switch component 400 generates a magnetic force. According to the principle that like magnetic poles repel each other, the first magnetic switch component 300 moves upwards due to the magnetic force of the second magnetic switch component 400, thereby driving the sealing component 320 to slide upwards on the connecting column 330, so that the water leakage hole 210 is in an open state.

[0044] Alternatively, a groove for accommodating the first magnetic switch component 300 and the second magnetic switch component 400 is provided at the bottom of the top cover 200, and the second magnetic switch component 400 is disposed at the bottom of the groove, and the first magnetic switch component 300 is located above the second magnetic switch component 400. After the second magnetic switch component 400 is energized and magnetized, according to the principle that like magnetic poles repel each other, the second magnetic switch component 400 pushes the first magnetic switch component 300 to drive the sealing component 320 to move upward, thereby opening the water leakage hole 210.

[0045] In this embodiment, the induction switch 500 includes a Hall element 510 installed on the rear housing 600 and a sensed member 520 correspondingly installed on the wet curtain 100, and the sensed member 520 can be a magnet. The induction switch 500 can also be a micro switch, an infrared induction switch 500 or a press-trigger switch.

[0046] Embodiment 2:

[0047] Based on the structure and principle of Example 1, this embodiment provides another structure of the first magnetic switch component 300. The first magnetic switch component 300 includes a magnetic component 310, a sealing component 320, a top column 340 and an elastic component 350. The magnetic component 310 can be a permanent magnet, the elastic component 350 can be a spring, the sealing component 320 is made of rubber, and the sealing component 320 is a block structure.

[0048] refer to Figure 4-5, a first magnetic switch component 300 is respectively arranged on each water leakage hole 210, a top column 340 penetrates the water leakage hole 210, the diameter of the top column 340 is smaller than the diameter of the water leakage hole 210, a sealing component 320 is arranged inside the water leakage hole 210, a magnetic component 310 is arranged outside the shell, the top column 340 is respectively connected to the sealing component 320 and the magnetic component 310, and an elastic component 350 is located outside the water leakage hole 210 and sleeved and connected to the top column 340. When the magnetic component 310 is not subjected to external magnetic force, the elastic component 350 applies elastic force to the top column 340 and the top cover 200 respectively, that is, applies downward force to the top column 340, so that the sealing component 320 presses and covers the water leakage hole 210 to prevent water from flowing out of the water leakage hole 210. The second magnetic switch component 400 is installed on the top of the wet curtain 100 corresponding to the first magnetic switch component 300. After the wet curtain 100 is installed, the second magnetic switch component 400 is located directly below the first magnetic switch component 300. According to the principle that magnetic poles of the same polarity repel each other, the first magnetic switch component 300 is subjected to the magnetic force of the second magnetic switch component 400, the second magnetic switch component 400 and the top column 340 move upward, the elastic component 350 is compressed, and the sealing component 320 is separated from the water leakage hole 210, so that the water leakage hole 210 is in an open state, so that water flows from the water leakage hole 210 to the wet curtain 100, ensuring the cooling function of the cooling fan. When the wet curtain 100 is not installed, the magnetic component 310 is not subjected to the magnetic force of the first magnetic switch component 300, the elastic component 350 exerts a downward force on the top column 340, and the top column 340 pulls the sealing component 320 to cover the inside of the water leakage hole 210, thereby blocking the water leakage hole 210.

[0049] Figure 6 The first magnetic switch element 300 is relative to Figure 5 The structure of the middle magnetic member 310 has been slightly changed. The first magnetic switch member 300 includes a magnetic member 310, a sealing member 320, a top column 340 and an elastic member 350. The top column 340 is arranged through the water leakage hole 210. The magnetic member 310 and the sealing member 320 are both arranged outside the water leakage hole 210. The elastic member 350 is arranged inside the water leakage hole 210. The top column 340 is connected to the magnetic member 310 and the sealing member 320 respectively. The sealing member 320 is located on the side of the magnetic member 310 facing the water leakage hole 210. The elastic member 350 is sleeved and connected to the top column 340. When the first magnetic switch member 300 is not subjected to external magnetic force, the elastic member 350 applies elastic force to the top column 340 and the top cover 200 respectively, that is, applies upward force to the top column 340, so that the sealing member 320 blocks the water leakage hole 210 from the outside of the water leakage hole 210 to prevent water from flowing out of the water leakage hole 210. When the wet curtain 100 is installed, according to the principle of magnetic opposites attracting each other, the first magnetic switch component 300 and the magnetic component 310 attract each other, so that the top column 340 and the magnetic component 310 move downward, and the top column 340 drives the sealing component 320 to separate from the water leakage hole 210, and the water leakage hole 210 is in an open state.

[0050] In this embodiment, the second magnetic switch component 400 includes a permanent magnet, and the sealing component 320 can be a truncated cone-shaped structure. When the sealing component 320 blocks the water leakage hole 210, the sealing component 320 is partially located in the water leakage hole 210 to ensure the tightness of the water leakage hole 210. Further, based on the principle that like magnetic poles repel each other, the second magnetic switch component 400 can also be an electromagnetic structure. The second magnetic switch component 400 is arranged between the magnetic component 310 and the wet curtain. The second magnetic switch component 400 is fixedly connected to the top cover 200. The induction switch 500 is electrically connected to the second magnetic switch component 400. The induction switch 500 is used to detect the installation status of the wet curtain 100. When the wet curtain 100 is installed, the induction switch 500 controls the conduction of the circuit of the second magnetic switch component 400 according to the electrical signal detected from the wet curtain 100. The second magnetic switch component 400 generates magnetic force.

[0051] The present solution also provides a cooling fan, which is equipped with the above-mentioned protective structure.

[0052] In summary, this embodiment provides a protective structure and a cold fan installed with the protective structure, wherein the first magnetic switch component 300 is installed at the water leakage hole 210, and when the second magnetic switch component 400 is a permanent magnet, the second magnetic switch component 400 is installed on the wet curtain; when the second magnetic switch component 400 is an electromagnetic structure, the second magnetic switch component 400 is fixedly connected to the outer side of the top cover 200, and at the same time, an induction switch 500 electrically connected to the second magnetic switch component 400 is installed on the rear shell 600. After the induction switch 500 senses that the wet curtain 100 is installed, the second magnetic switch component 400 is energized and magnetized. When the wet curtain 100 is not installed, the first magnetic switch component 300 is in a closed state, the water leakage hole 210 is blocked, and water cannot flow out of the water leakage hole 210. When the cold fan is used without installing the wet curtain 100, water is prevented from flowing to the fan motor blower, solving the problem of fan splashing and noise, ensuring the proper use of the fan blowing function, and improving the electrical safety of the cold fan. After the wet curtain 100 is installed, the first magnetic switch component 300 is opened by the magnetic force of the second magnetic switch component 400 to ensure the smooth flow of the water leakage hole 210.

[0053] 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 protective structure, arranged between a wet curtain (100) and a top cover (200) of a cooling fan, characterized in that: include: A first magnetic switch component (300) is mounted at the water leakage hole (210) of the top cover (200), and the first magnetic switch component (300) is in a closed state when not subjected to external magnetic force, thereby blocking the water leakage hole (210); A second magnetic switch component (400) is used to apply a magnetic force to the first magnetic switch component (300), so that the first magnetic switch component (300) opens the water leakage hole (210); The first magnetic switch component (300) comprises a magnetic component (310) and a sealing component (320) connected to the magnetic component (310); the magnetic component (310) is movably mounted on the top cover (200); The sealing member (320) is slidably disposed above the water leakage hole (210), and the magnetic member (310) is disposed on a side of the sealing member (320) facing the water leakage hole (210); When the wet curtain (100) is not installed, the first magnetic switch component (300) is not subjected to external magnetic force, and the first magnetic switch component (300) causes the sealing component (320) to slide toward the water leakage hole (210) through the gravity of the magnetic component (310), so as to block the water leakage hole (210); When the wet curtain (100) is installed, the second magnetic switch component (400) applies a magnetic force to the first magnetic switch component (300), and the magnetic component (310) drives the sealing component (320) to move away from the water leakage hole (210) to open the water leakage hole (210), and water flowing out of the water leakage hole (210) falls on the wet curtain (100).

2. The protective structure according to claim 1, characterized in that: The second magnetic switch component (400) is an electromagnetic structure; the second magnetic switch component (400) is mounted on the top cover (200) and is arranged below the magnetic component (310).

3. The protective structure according to claim 2, characterized in that: The protection structure further comprises an induction switch (500), wherein the induction switch (500) controls the conduction of the circuit of the second magnetic switch element (400) according to the electrical signal detected from the wet curtain (100).

4. The protective structure according to claim 3, characterized in that: The induction switch (500) comprises a Hall element (510) installed on the rear housing (600) of the cooling fan and a sensed component (520) installed on the wet curtain (100).

5. The protective structure according to claim 1, characterized in that: The first magnetic switch component (300) further comprises a top column (340) and an elastic component (350) sleeved and connected to the top column (340); The top column (340) passes through the water leakage hole (210) and is connected to the magnetic component (310) and the sealing component (320). The elastic component (350) and the sealing component (320) are arranged at the inner and outer sides of the water leakage hole (210) opposite to each other. The elastic component (350) applies elastic force to the top column (340) and the top cover (200) respectively, so that the sealing component (320) covers the water leakage hole (210).

6. The protective structure according to claim 5, characterized in that: The magnetic component (310) is located outside the water leakage hole (210), and the sealing component (320) is located inside the water leakage hole (210).

7. The protective structure according to claim 5, characterized in that: The magnetic component (310) and the sealing component (320) are respectively arranged outside the water leakage hole (210), and the sealing component (320) is located on a side of the magnetic component (310) facing the water leakage hole (210).

8. The protective structure according to claim 1, characterized in that: The second magnetic switch component (400) comprises a permanent magnet, and the second magnetic switch component (400) is installed on the wet curtain (100) corresponding to the first magnetic switch component (300).

9. A cooling fan, characterized in that: The protective structure comprises any one of claims 1 to 8.

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