Water tank structure and cooling fan

Abstract

The invention relates to a water tank structure and a cooling fan. The main body water tank is arranged on the auxiliary box body, and the water supply assembly is communicated with the main body water tank; the water conveying assembly is configured to convey liquid in the auxiliary box body to the main body water tank. Thus, the water tank structure is divided into the main water tank and the auxiliary tank body, the auxiliary tank body is small in size, a user can conveniently clean all areas in the auxiliary water tank and clean the auxiliary water tank, and therefore the cleanliness of water in the auxiliary water tank can be improved, the cleanliness of water in the main water tank and the cleanliness of outlet air can be improved, and the service life of the water tank is prolonged. And the influence on the user health is prevented. Meanwhile, as the liquid in the main body water tank is fed from the auxiliary water tank, a user mainly cleans the auxiliary water tank located at the source of the liquid, the air outlet cleanliness of the cooling fan can be guaranteed without cleaning the main body with a large size, and cleaning is more convenient.

Description

Technical Field

[0001] The present application relates to the technical field of cooling fans, and in particular to a water tank structure and a cooling fan. Background Art

[0002] As a new cooling method between fans and air conditioners, cold fans have become increasingly popular among consumers. Their working principle is that a water pump draws water into the evaporation component to be evaporated, and then the water mist mixed with air formed by the evaporation is sent out through the air outlet component to blow out cold air at the outlet.

[0003] Generally, the water tank in the cooling fan is deep, which makes it difficult for users to disassemble and clean it, and it is impossible to clean it thoroughly, which in turn affects the water quality and the cleanliness of the air. Long-term use of the water tank without sufficient cleaning may lead to bacterial growth and poor air cleanliness, which will pose a potential threat to user health. Summary of the invention

[0004] Based on this, it is necessary to provide a water tank structure and a cooling fan to address the problem of poor cleanliness of air discharge from traditional cooling fans.

[0005] A water tank structure, characterized by comprising:

[0006] Main water tank;

[0007] Auxiliary box and water supply assembly, the main water tank is arranged on the auxiliary box, and the water supply assembly is connected with the main water tank;

[0008] Wherein, the water delivery assembly is configured to deliver the liquid in the auxiliary tank to the main water tank.

[0009] In the above water tank structure, the water in the auxiliary tank is transported to the main water tank through the water supply assembly, and the water in the main water tank is used to evaporate to form cold air, thereby realizing the cold air blowing function of the cooling fan. In addition, the water tank structure is decomposed into the main water tank and the auxiliary tank. The auxiliary tank is smaller in size, so the user can easily clean various areas in the auxiliary water tank and clean the auxiliary water tank. This can improve the cleanliness of the water in the auxiliary water tank, and then improve the cleanliness of the water in the main water tank and the cleanliness of the air outlet, thereby preventing the user's health from being affected. At the same time, since the liquid in the main water tank is fed in by the auxiliary water tank, the user mainly cleans the auxiliary water tank at the source of the liquid, and does not need to clean the larger main body, so the cleanliness of the air outlet of the cooling fan can be guaranteed, and cleaning is more convenient.

[0010] In some embodiments, the water delivery assembly is disposed in the auxiliary tank, and the water delivery assembly is configured to filter the liquid in the auxiliary tank and then deliver it to the main water tank.

[0011] In some embodiments, the water delivery assembly includes a filter element and a water pump. The filter element is disposed in the auxiliary box body and divides the internal space of the auxiliary box body into a first cavity and a second cavity. The first cavity can be selectively closed and opened. The water pump is disposed in the second cavity and is used to transport the liquid filtered by the filter element to the main water tank.

[0012] In some embodiments, the filter element is annular and encloses itself to form the second cavity. Along the radial direction of the filter element, the filter element and the auxiliary box enclose a first cavity surrounding the second cavity.

[0013] In some embodiments, the filter element includes a shell and a filter portion. The shell is arranged in a ring shape in the auxiliary box, and the shell encloses the second cavity. The first cavity is enclosed between the shell and the auxiliary box along the radial direction of the shell. The filter portion is arranged on the shell and is located between the first cavity and the second cavity to filter the liquid.

[0014] In some embodiments, the housing includes a circumferentially closed annular portion and a bottom provided at one axial end of the annular portion, the bottom and the annular portion enclose each other to form the second cavity, and the filter portion is provided on the bottom;

[0015] Along the axial direction of the shell, a liquid-passing gap is defined between the bottom and the auxiliary box body, and the liquid-passing gap communicates with the first cavity and the filter part.

[0016] In some embodiments, the filter element further includes a plurality of support portions, wherein the plurality of support portions are arranged at intervals from each other on a side of the bottom facing away from the second cavity, and the plurality of support portions are supported on the bottom wall of the auxiliary box body, and the liquid-passing gap is formed between the bottom and the bottom wall of the auxiliary box body and supported by the plurality of support portions.

[0017] In some embodiments, the shell includes a circumferentially closed annular portion, on which the filter portion is disposed; along the radial direction of the shell, the filter portion is located between the first cavity and the second cavity.

[0018] In some embodiments, the auxiliary box body includes a box body and a cover body, the filter element is arranged in the box body, and the first cavity is formed between the filter element and the box body along the radial direction of the filter element. An opening is opened on the box body corresponding to the first cavity, and the cover body can be opened and closed at the opening.

[0019] In some embodiments, along the radial direction of the filter element, opposite ends of the cover body are detachably fastened to the box body; or

[0020] The opening extends to the main water tank. Along the radial direction of the filter, one end of the cover body is detachably fastened to the box body, and the other end of the cover body is detachably fastened to the main water tank.

[0021] A cooling fan comprises the water tank structure mentioned above. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a schematic diagram of the structure of a cooling fan in some embodiments of the present application;

[0023] FIG2 is a schematic structural diagram of a water tank structure in some embodiments of the present application;

[0024] FIG3 is a partial enlarged schematic diagram of a water tank structure in some embodiments of the present application;

[0025] FIG. 4 is a schematic diagram of the structure of a filter element in some embodiments of the present application.

[0026] Explanation of the reference numerals: 100, water tank structure; 10, main water tank; 30, auxiliary water tank; 32, auxiliary box body; 321, box body; 323, cover body; 324, buckle; 325, buckle position; 33, first cavity; 34, water supply assembly; 35, filter element; 351, shell; 353, filter part; 355, annular part; 357, bottom; 36, second cavity; 37, support part; 38, water pump; 50, liquid gap; 200, cooling fan; 210, cooling fan head; 230, cooling fan body. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] Referring to FIG. 1 , according to some embodiments of the present application, the present application provides a cooling fan 200, including a cooling fan 200 head and a cooling fan body 230. The cooling fan 200 head is disposed on the cooling fan body 230 and is used to send air to the outside. Specifically, the cooling fan 200 head includes an evaporation part and an air outlet assembly. The cooling fan body 230 includes a water tank structure 100. The water tank structure 100 is used to supply water to the evaporation part. The evaporation part evaporates and atomizes the introduced water to form mist. The air outlet assembly sends out the evaporated water mist mixed with air to provide cool cold air for the user.

[0034] Referring to FIGS. 2 to 4 , according to some embodiments of the present application, the water tank structure 100 includes a main water tank 10, an auxiliary tank body 32, and a water supply assembly 34. The main water tank 10 is disposed on the auxiliary tank body 32, and the water supply assembly 34 is in communication with the main water tank 10. The water supply assembly 34 is used to transport the liquid in the auxiliary tank body 32 to the main water tank 10. That is, the water in the auxiliary tank body 32 is transported to the main water tank 10 through the water supply assembly 34, and the water in the main water tank 10 is used to evaporate to form cold air, thereby achieving the cold air blowing function of the cooling fan.

[0035] Furthermore, the water tank structure 100 is decomposed into the main water tank 10 and the auxiliary tank 32. The auxiliary tank 32 is relatively small in size, so that the user can easily clean various areas in the auxiliary water tank 30 and clean the auxiliary water tank 30. This can improve the cleanliness of the water in the auxiliary water tank 30, thereby improving the cleanliness of the water in the main water tank 10 and the cleanliness of the air outlet, thereby preventing the user's health from being affected. At the same time, since the liquid in the main water tank 10 is fed into the auxiliary water tank 32, the user mainly cleans the auxiliary water tank 32 at the source of the liquid, and does not need to clean the larger main water tank 10, so that the cleanliness of the air outlet of the cooling fan 200 can be guaranteed, and cleaning is more convenient.

[0036] Furthermore, the water supply component 34 is arranged in the auxiliary box body 32, and the water supply component 34 is constructed to filter the liquid in the auxiliary box body 32 and then transport it to the main water tank 10. In this way, the liquid in the auxiliary box body 32 is first filtered and cleaned by the water supply component 34, and then transported to the main water tank 10, which can further keep the water in the main water tank 10 in a clean state at all times. After that, the water in the main water tank 10 is evaporated to form cold air, further ensuring the cleanliness of the air outlet of the cold fan 200 and preventing it from affecting the health of the user.

[0037] According to some embodiments of the present application, the water delivery assembly 34 includes a filter 35 and a water pump 38. The filter 35 is disposed in the auxiliary box 32, and divides the internal space of the auxiliary box 32 into a first cavity 33 and a second cavity 36. The first cavity 33 can be optionally closed and opened, and a water pump 38 is disposed in the second cavity 36. The water pump 38 is used to deliver the liquid filtered by the filter 35 to the main water tank 10. In this way, during use, the first cavity 33 can be opened to add water to the auxiliary box 32, and when the water pump 38 is working, the water filtered by the filter 35 in the second cavity 36 can be delivered to the main water tank 10, and clean water is injected into the main water tank 10 to ensure the cleanliness of the water in the main water tank 10.

[0038] According to some embodiments of the present application, the filter element 35 is annular and encloses itself to form a second cavity 36. Along the radial direction of the filter element 35, the filter element 35 and the auxiliary box 32 enclose a first cavity 33 surrounding the second cavity 36. In other words, the filter element 35 is set as a circumferentially closed structure, so that the filter element 35 encloses itself to form the second cavity 36. In addition, after the filter element 35 is set in the auxiliary box 32, the filter element 35 and the auxiliary box 32 have a distance in the radial direction of the filter element 35 and define the first cavity 33. In this way, the first cavity 33 surrounds the outer periphery of the second cavity 36, and the first cavity 33 can be easily opened and closed, which is convenient for adding water to the auxiliary box 32 and cleaning the auxiliary water tank 30. At the same time, a water pump 38 is placed in the second cavity 36 located in the center, so that the filtered water can be transported to the main water tank 10.

[0039] In addition, after the first cavity 33 is opened and water is added, the added water flows from the first cavity 33 through the filter element 35 to the second cavity 36 at the center, so that the filter element 35 is located on the flow path of the water in the auxiliary box 32 to filter impurities. In addition, when the water pump 38 is working, while the water in the second cavity 36 is pumped away, the water in the first cavity 33 is replenished into the second cavity 36 after passing through the filter element 35, so that impurities in the liquid can also be filtered by the filter element 35.

[0040] Optionally, the filter element 35 is in a circular ring shape or a polygonal ring shape, and the filter element 35 can filter impurities in the water.

[0041] Furthermore, the filter element 35 includes a shell 351 and a filter part 353. The shell 351 is annularly arranged in the auxiliary box 32, and the shell 351 encloses a second cavity 36. The shell 351 and the auxiliary box 32 enclose a first cavity 33 along the radial direction of the shell 351. The filter part 353 is arranged on the shell 351 and is located between the first cavity 33 and the second cavity 36 to filter the liquid. The filter part 353 has a filtering function and can filter the liquid. The filter part 353 is arranged on the shell 351, and the shell 351 serves as the installation base or formation base of the filter part 353, and the filter element 35 closed in the circumferential direction is constructed to separate the first cavity 33 and the second cavity 36.

[0042] Optionally, the filter part 353 is constructed to include a first filter part 353, which is a plurality of filter holes provided on the housing 351, and the liquid entering the second cavity 36 from the first cavity 33 is filtered through the plurality of filter holes to improve cleanliness. Optionally, the filter part 353 is constructed to include a second filter part 353, and the second filter part 353 is a filter membrane or filter cotton, and the liquid is finely filtered through the filter membrane or filter cotton. Optionally, the filter part 353 is constructed to include a first filter part 353 and a second filter part 353, that is, a plurality of filter holes are provided on the housing 351 to form the first filter part 353, and a second filter part 353 is provided on at least one side of the plurality of filter holes along the axial direction, so that the liquid is filtered multiple times through the filter holes and the filter membrane or filter cotton in the second filter part 353, and the filtering effect is better.

[0043] According to some embodiments of the present application, the housing 351 includes a circumferentially closed annular portion 355 and a bottom 357 disposed at one axial end of the annular portion 355, the bottom 357 and the annular portion 355 enclose to form a second cavity 36, and a filter portion 353 is disposed on the bottom 357; along the axial direction of the housing 351, a liquid-passing gap 50 is defined between the bottom 357 and the auxiliary box 32, and the liquid-passing gap 50 communicates the first cavity 33 and the filter portion 353. In this way, the filter portion 353 is disposed on the bottom 357 of the housing 351, and a filter gap is formed between the bottom 357 of the housing 351 and the bottom wall of the auxiliary box 32, so that the liquid in the first cavity 33 flows into the second cavity 36 through the filter portion 353 after passing through the liquid-passing gap 50, so that the liquid can be filtered by the filter portion 353, and when the amount of water in the auxiliary box 32 is small, it can still flow to the filter portion 353 and the second cavity 36, thereby improving the utilization rate of the water in the auxiliary box 32.

[0044] Further, the filter element 35 further includes a plurality of support portions 37, which are arranged at intervals on the side of the bottom 357 facing away from the second cavity 36, and the plurality of support portions 37 are supported on the bottom wall of the auxiliary box 32, and the bottom 357 and the bottom wall of the auxiliary box 32 are supported by the support portions 37 to form a liquid-passing gap 50. In this way, in order to form the liquid-passing gap 50, a plurality of support portions 37 are arranged at intervals on the bottom 357 of the filter element 35 to support the bottom 357, and the liquid-passing gap 50 is defined between the bottom 357 and the bottom wall of the auxiliary box 32. At the same time, the plurality of support portions 37 are spaced apart from each other, allowing the first cavity 33 to communicate with the liquid-passing gap 50 through the gaps between adjacent support portions 37, allowing the liquid in the first cavity 33 to flow into the liquid-passing gap 50.

[0045] Optionally, the plurality of support portions 37 are spaced apart from each other along the circumferential direction of the annular portion 355 ; further optionally, the plurality of support portions 37 are irregularly arranged, which is not limited thereto.

[0046] According to some embodiments of the present application, the shell 351 includes a circumferentially closed annular portion 355, on which a filter portion 353 is provided; along the radial direction of the shell 351, the filter portion 353 is located between the first cavity 33 and the second cavity 36, and the liquid in the first cavity 33 flows radially toward the filter portion 353 and then enters the second cavity 36. The filter portion 353 is used to filter the liquid flowing toward the second cavity 36 to improve the cleanliness of the liquid.

[0047] According to some embodiments of the present application, the housing 351 includes a circumferentially closed annular portion 355 and a bottom 357 disposed at one axial end of the annular portion 355. The bottom 357 and the annular portion 355 enclose a second cavity 36. The annular portion 355 and the bottom 357 are both provided with a filter portion 353. Along the axial direction of the housing 351, a liquid-passing gap 50 is defined between the bottom 357 and the auxiliary box 32. The liquid-passing gap 50 communicates the first cavity 33 and the filter portion 353. In this way, the filter portion 353 is disposed on the bottom 357 of the housing 351, and a filter gap is formed between the bottom 357 of the housing 351 and the bottom wall of the auxiliary box 32. The liquid in the first cavity 33 can flow into the second cavity 36 through the filter portion 353 after passing through the liquid-passing gap 50. In addition, a filter portion 353 is also provided on the annular portion 355, and the filter portion 353 on the annular portion 355 is located between the first cavity 33 and the second cavity 36, so that the liquid in the first cavity 33 can also flow radially toward the filter portion 353 and then enter the second cavity 36. In this way, the bottom 357 and the filter portion 353 on the annular portion 355 can filter the liquid flowing toward the second cavity 36, thereby improving the cleanliness of the liquid.

[0048] Furthermore, when the amount of water in the auxiliary box body is small, the water can flow to the filter portion 353 and the second cavity 36 through the liquid gap 50 above the bottom wall of the auxiliary box body 32 , thereby improving the utilization rate of the water in the auxiliary box body 32 .

[0049] Further, the filter element 35 further includes a plurality of support portions 37, which are arranged at intervals on the side of the bottom 357 facing away from the second cavity 36, and the plurality of support portions 37 are supported on the bottom wall of the auxiliary box 32, and the bottom 357 and the bottom wall of the auxiliary box 32 are supported by the support portions 37 to form a liquid-passing gap 50. In this way, in order to form the liquid-passing gap 50, a plurality of support portions 37 are arranged at intervals on the bottom 357 of the filter element 35 to support the bottom 357, and the liquid-passing gap 50 is defined between the bottom 357 and the bottom wall of the auxiliary box 32. At the same time, the plurality of support portions 37 are spaced apart from each other, allowing the first cavity 33 to communicate with the liquid-passing gap 50 through the gaps between adjacent support portions 37, allowing the liquid in the first cavity 33 to flow into the liquid-passing gap 50.

[0050] Optionally, the plurality of support portions 37 are spaced apart from each other along the circumferential direction of the annular portion 355 ; further optionally, the plurality of support portions 37 are irregularly arranged, which is not limited thereto.

[0051] According to some embodiments of the present application, the auxiliary box body 32 includes a box body 321 and a cover body 323, the filter element 35 is disposed in the box body 321, and the first cavity 33 is formed between the filter element 35 and the box body 321 along the radial direction of the filter element 35, and an opening is provided on the box body 321 corresponding to the first cavity 33, and the cover body 323 can be opened and closed to cover the opening. In this way, an opening connected to the first cavity 33 is provided on the box body 321, and the opening can be closed and opened by the cover body 323, so that the user can add water to the auxiliary water tank 30 through the opening, and the user can also open the opening to clean the inside of the auxiliary water tank 30, and the cleanliness of the inside of the auxiliary water tank 30 can be improved to prevent bacteria from growing in the auxiliary water tank 30.

[0052] Specifically, the box body 321 includes a bottom wall, a top wall, and a peripheral wall connected between the top wall and the bottom wall. The filter 35 is arranged between the top wall and the bottom wall, and there is a distance between the filter 35 and the peripheral wall. The first cavity 33 is defined between the filter 35 and the peripheral wall. In addition, an opening is provided on the top wall, and the cover 323 can be opened and closed to cover the opening, and is detachably connected to the top wall to open and close the opening. At the same time, the opening is provided on the top wall to facilitate users to perform operations such as adding water and cleaning.

[0053] Optionally, along the radial direction of the filter element 35, both opposite ends of the cover 323 are detachably buckled with the box body 321, so that the cover 323 is allowed to close and open the opening by buckling and matching the opposite ends of the cover 323 along the radial direction with the box body 321. Optionally, the opening extends to the main water tank 10, and along the radial direction of the filter element 35, one end of the cover 323 is detachably buckled with the box body 321, and the other end of the cover 323 is detachably buckled with the main water tank 10, so that when the opening range is large and directly extends to the main water tank 10, one end of the cover 323 is adjacent to the main water tank 10, one end of the cover 323 can be detachably buckled on the main water tank 10, and the other end is detachably buckled with the box body 321, so that the cover 323 is detachably assembled.

[0054] Furthermore, a buckle 324 is protruding from the bottom wall of the cover body 323 facing the first cavity 33, a buckle position 325 is provided on the inner wall of one end of the box body 321, and another buckle position 325 is provided on the other end of the box body 321 or the main water tank 10, so that the cover body 323 is installed by cooperating between the buckle 324 and the buckle position 325.

[0055] Alternatively, in other embodiments, the cover 323 may also be rotatably mounted on the tank body 321 or the water tank body.

[0056] According to some embodiments of the present application, the present application also provides a water tank structure 100 described in any of the above embodiments. The water tank structure 100 includes a main water tank 10, an auxiliary box 32 and a water supply assembly 34. The main water tank 10 is arranged on the auxiliary box 32. The water supply assembly 34 is connected to the main water tank 10. The water supply assembly 34 is used to transport the liquid in the auxiliary box 32 to the main water tank 10. That is, the water in the auxiliary box 32 is transported to the main water tank 10 through the water supply assembly 34. The water in the main water tank 10 is used to evaporate to form cold air, so as to realize the cold air blowing function of the cooling fan. In addition, the water tank structure 100 is decomposed into the main water tank 10 and the auxiliary box 32. The auxiliary box 32 is small in size. The user can easily clean various areas in the auxiliary water tank 30 and clean the auxiliary water tank 30. In this way, the cleanliness of the water in the auxiliary water tank 30 can be improved, and then the cleanliness of the water in the main water tank 10 and the cleanliness of the air outlet can be improved to prevent the user's health from being affected.

[0057] Furthermore, the water supply component 34 is arranged in the auxiliary box body 32, and the water supply component 34 is constructed to filter the liquid in the auxiliary box body 32 and then transport it to the main water tank 10. In this way, the liquid in the auxiliary box body 32 is first filtered and cleaned by the water supply component 34, and then transported to the main water tank 10, which can further keep the water in the main water tank 10 in a clean state at all times. After that, the water in the main water tank 10 is evaporated to form cold air, further ensuring the cleanliness of the air outlet of the cold fan 200 and preventing it from affecting the health of the user.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A water tank structure, characterized in that: include: Main water tank; Auxiliary box and water supply assembly, the main water tank is arranged on the auxiliary box, and the water supply assembly is connected with the main water tank; Wherein, the water delivery component is used to deliver the liquid in the auxiliary box to the main water tank.

2. The water tank structure according to claim 1, characterized in that: The water supply assembly is disposed in the auxiliary box body, and is configured to filter the liquid in the auxiliary box body and then supply it to the main water tank.

3. The water tank structure according to claim 1, characterized in that: The water delivery assembly includes a filter and a water pump. The filter is arranged in the auxiliary box and divides the internal space of the auxiliary box into a first cavity and a second cavity. The first cavity can be selectively closed and opened. The water pump is arranged in the second cavity and is used to transport the liquid filtered by the filter to the main water tank.

4. The water tank structure according to claim 3, characterized in that: The filter element is annular and encloses itself to form the second cavity. Along the radial direction of the filter element, the filter element and the auxiliary box enclose a first cavity surrounding the second cavity.

5. The water tank structure according to claim 4, characterized in that: The filter element includes a shell and a filter part. The shell is arranged in an annular shape in the auxiliary box, and the shell encloses the second cavity. The first cavity is enclosed between the shell and the auxiliary box along the radial direction of the shell. The filter part is arranged on the shell and is located between the first cavity and the second cavity to filter the liquid.

6. The water tank structure according to claim 5, characterized in that: The housing comprises a circumferentially closed annular portion and a bottom provided at one axial end of the annular portion, wherein the bottom and the annular portion enclose the second cavity, and the filter portion is provided on the bottom; Along the axial direction of the shell, a liquid-passing gap is defined between the bottom and the auxiliary box body, and the liquid-passing gap communicates with the first cavity and the filter part.

7. The water tank structure according to claim 6, characterized in that: The filter element also includes a plurality of support portions, which are arranged at intervals on a side of the bottom facing away from the second cavity, and are supported on the bottom wall of the auxiliary box body. The liquid-passing gap is formed between the bottom and the bottom wall of the auxiliary box body and is supported by the plurality of support portions.

8. The water tank structure according to claim 5 or 6, characterized in that: The shell comprises a circumferentially closed annular portion, on which the filter portion is arranged; along the radial direction of the shell, the filter portion is located between the first cavity and the second cavity.

9. The water tank structure according to claim 4, characterized in that: The auxiliary box body includes a box body and a cover body, the filter element is arranged in the box body, and the first cavity is formed between the filter element and the box body along the radial direction of the filter element. An opening is opened on the box body corresponding to the first cavity, and the cover body can be opened and closed at the opening.

10. The water tank structure according to claim 9, characterized in that: Along the radial direction of the filter element, opposite ends of the cover body are detachably buckled with the box body; or The opening extends to the main water tank. Along the radial direction of the filter, one end of the cover body is detachably fastened to the box body, and the other end of the cover body is detachably fastened to the main water tank.

11. A cooling fan, characterized in that: The water tank structure comprises any one of claims 1 to 10.

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