Support, connecting structure and cooling fan

Abstract

The invention relates to a support, a connecting structure and a cooling fan, the support is used for connecting a distribution pipe and a connecting pipe, the support comprises a main shell, the main shell is provided with a containing cavity and a plurality of communicating holes communicating the containing cavity with the external environment, the containing cavity is used for containing the distribution pipe, and the connecting pipe is connected with the distribution pipe through the communicating holes; one end of each supporting lug is connected to the main shell, the other end of each supporting lug extends in the direction away from the main shell, each supporting lug is provided with a fixing groove, and the fixing grooves are used for limiting the connecting pipes. According to the support, the distribution pipe is contained in the support and can be connected with the connecting pipe through the support, the arrangement of the support optimizes the layout of the distribution pipe and the connecting pipe, the structure of the water circulation system is simplified, and therefore the water distribution and circulation efficiency is improved, and efficient operation of the water circulation system is achieved.

Description

Technical Field

[0001] This application relates to the technical field of air outlet cooling devices, and in particular to a bracket, a connecting structure, and a cooling fan. Background Technology

[0002] With the development of technology and the improvement of living standards, people's requirements for the comfort of their living environment are also gradually increasing. As an evaporative cooling device that falls between a fan and an air conditioner, evaporative air coolers are widely used in people's production and daily life, effectively improving their living and working environments. An evaporative air cooler typically includes a water tank, a water pump, an evaporator, and a fan. The water pump draws water from the tank and distributes it to the evaporator to form a water film. External airflow is drawn in at high speed by the fan, causing the water on the water film to rapidly evaporate from a liquid state to a gaseous state, absorbing heat from the airflow. The cool air is then delivered at high speed through the air vents, achieving the cooling function.

[0003] However, because the evaporative cooling fan integrates the evaporative cooling pad assembly, the design and layout of the water circulation system is often quite complex, and it is difficult to achieve efficient water distribution and circulation, which affects the overall performance of the evaporative cooling fan. Summary of the Invention

[0004] Therefore, it is necessary to provide a bracket, a connection structure, and a cooling fan to address the problem of low water distribution and circulation efficiency in cooling fans.

[0005] A bracket for connecting a distribution pipe and a connecting pipe, comprising:

[0006] The main housing has a receiving cavity and multiple communicating holes connecting the receiving cavity to the external environment. The receiving cavity is used to accommodate a distribution pipe, and the connecting pipe is connected to the distribution pipe through the communicating holes.

[0007] At least one lug, each lug having one end connected to the main housing and the other end extending away from the main housing, each lug having a fixing groove for limiting the connecting tube.

[0008] In one embodiment, each of the lugs has at least two spaced fixing parts at one end away from the main housing, the fixing parts having fixing holes and fixing grooves formed between two adjacent fixing parts.

[0009] In one embodiment, the receiving cavity has a closed end and an open end disposed opposite to each other in a first direction, and each of the lugs includes a first extension, a second extension and a third extension connected in sequence.

[0010] The first extension is connected to the main housing and is flush with the opening end in the first direction; the second extension extends from the end of the first extension away from the main housing in the first direction away from the receiving cavity; the third extension extends from the end of the second extension away from the first extension in the direction away from the receiving cavity, and the third extension is parallel to the first extension.

[0011] In one embodiment, the support further includes at least one partition, all of which are located within the receiving cavity and divide the receiving cavity into at least two sub-receiving cavities, each of which is used to receive one of the dispensing tubes.

[0012] In one embodiment, the bracket further includes a mounting portion, one end of which is connected to the main housing, and the other end of which extends away from the main housing.

[0013] A connection structure includes the aforementioned bracket, and the connection structure further includes a swaying assembly, wherein the bracket is fixed to one end of the swaying assembly and rotates with the swaying assembly.

[0014] In one embodiment, the head-shaking component includes:

[0015] Fixed base;

[0016] The driving component is mounted on the fixed base; and

[0017] A rotating shaft is rotatably mounted on the fixed base and connected to the driving component for transmission. The rotating shaft rotates relative to the fixed base under the drive of the driving component.

[0018] The bracket is connected to the rotating shaft.

[0019] In one embodiment, the rotating shaft is provided with a wiring channel, and the fixed base is provided with a wiring groove corresponding to the wiring channel.

[0020] A cooling fan includes the above-mentioned connecting structure. The cooling fan also includes a body and a head, which are interconnected through the connecting structure.

[0021] In one embodiment, the casing includes a water tank, the unit head includes a wet curtain assembly, and the cooling fan further includes:

[0022] At least one dispensing tube is housed within the receiving cavity of the support;

[0023] At least one set of connecting pipes, each set of connecting pipes including multiple sub-connecting pipes, all the sub-connecting pipes of each set of connecting pipes being interconnected through the distribution pipe, one end of each sub-connecting pipe passing through the connecting hole and connecting to the connecting port of the distribution pipe, and at least a portion of the sub-connecting pipes being confined within the fixing groove.

[0024] The aforementioned support structure houses the distribution pipe and allows it to connect to the connecting pipe. The support structure optimizes the layout of the distribution pipe and the connecting pipe, simplifies the structure of the water circulation system, thereby improving the efficiency of water distribution and circulation, and enabling the efficient operation of the water circulation system. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a partial structural diagram of a cooling fan according to an embodiment of this application.

[0028] Figure 2 for Figure 1 The image shows a front view of the cooling fan.

[0029] Figure 3 for Figure 1 The image shows a side view of the cooling fan.

[0030] Figure 4 This is a schematic diagram of the assembly of the bracket, distribution pipe, and connecting pipe according to an embodiment of this application.

[0031] Figure 5 This is a schematic diagram of the structure of a bracket according to an embodiment of this application.

[0032] Figure 6 for Figure 5 Top view of the bracket shown.

[0033] Figure 7 for Figure 5 The front view of the bracket shown.

[0034] Figure 8 for Figure 5 Side view of the bracket shown.

[0035] Figure 9 for Figure 5 The bracket shown is viewed from below.

[0036] Figure 10 This is a schematic diagram of the structure of a head-shaking component according to an embodiment of this application.

[0037] Figure 11 for Figure 10 The diagram shows the internal structure of the head-shaking component.

[0038] Explanation of reference numerals in the attached figures:

[0039] 100. Cooling fan; 12. Water tank; 30. Head unit; 32. Air duct assembly; 321. Rack; 34. Oscillating drive unit; 36. Evaporative cooling pad assembly; 50. Connecting structure; 52. Bracket; 521. Main housing; 521a. Receiving cavity; 521b. Connecting hole; 521c. Connecting hole; 521d. Rib; 523. Support lug; 523a. Fixing groove; 5231. First extension; 5232. Second extension; 5233. Third extension; 5234. Fixing part; 525. Separator; 527. Mounting part; 54. Oscillating assembly; 541. Fixing base; 541a. Cable tray; 543. Drive unit; 545. Rotating shaft; 545a. Cable channel; 72. Distribution pipe; 74. Connecting pipe; 741. Sub-connecting pipe. Detailed Implementation

[0040] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0041] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0042] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0046] See Figures 1 to 3 An embodiment of this application provides an air cooler 100, including a body, a fan head 30, and a connecting structure 50, wherein the body and the fan head 30 are connected to each other through the connecting structure 50.

[0047] The fuselage is generally cylindrical in shape. The head unit 30 is located on the top of the fuselage and includes a housing (not shown), an air duct assembly 32 rotatably housed within the housing, and a oscillation drive unit 34. Both the housing and the air duct assembly 32 are hollow cylindrical structures, and their axes are parallel to each other. Specifically, the outer side of the air duct assembly 32 has a circumferentially extending rack 321. The oscillation drive unit 34 meshes with the rack 321 to drive the air duct assembly 32 to rotate relative to the housing around its own axis, thereby achieving an up-and-down oscillation function to generate directional airflow.

[0048] Furthermore, in order to further realize the cooling and humidification functions, a water tank 12 is also provided inside the unit. The unit head 30 also includes two sets of wet curtain assemblies 36. The two sets of wet curtain assemblies 36 are respectively located at opposite ends of the air duct assembly 32 in the axial direction. Both sets of wet curtain assemblies 36 are connected to the water tank 12 through pipes to humidify and cool the airflow passing through the air duct assembly 32.

[0049] Specifically, in this application, the water tank 12 and the wet curtain assembly 36 are interconnected with two distribution pipes 72 and two sets of connecting pipes 74. Each distribution pipe 72 has a "T"-shaped tubular structure and three interconnected ports. Each set of connecting pipes 74 includes three sub-connecting pipes 741, and the three sub-connecting pipes 741 of each set of connecting pipes 74 are interconnected through one distribution pipe 72.

[0050] More specifically, one end of one sub-connecting pipe 741 in each set of connecting pipes 74 is connected to the water tank 12, and the other end is connected to a connection port of a distribution pipe 72. One end of the other two sub-connecting pipes 741 in the same set is connected to the other two connection ports of the distribution pipe 72, and the other ends of the two sub-connecting pipes 741 are connected to the two wet curtain assemblies 36, respectively. Moreover, in the two sets of connecting pipes 74, one set of connecting pipes 74 connects the water outlet of the water tank 12 to the water inlet of the wet curtain assembly 36, and the other set of connecting pipes 74 connects the water return of the water tank 12 to the water outlet of the wet curtain assembly 36.

[0051] Thus, water in the water tank 12 enters the distribution pipe 72 through one of the sub-connecting pipes 741 of one set of connecting pipes 74, and then flows evenly into the other two sub-connecting pipes 741 of the same set of connecting pipes 74, finally reaching the two wet curtain assemblies 36. Water returning from the two wet curtain assemblies 36 flows into another distribution pipe 72 through two sub-connecting pipes 741 of another set of connecting pipes 74, then merges through the distribution pipe 72 and flows into another sub-connecting pipe 741 of the same set of connecting pipes 74, finally returning to the water tank 12 through the sub-connecting pipe 741.

[0052] It is understandable that, depending on factors such as the number of wet curtain components 36, the number of distribution pipes 72, the number of connecting pipes 74, and the number of sub-connecting pipes 741 in each group of connecting pipes 74 are unlimited and can be set as needed to meet different water circuit connection requirements.

[0053] Please continue reading. Figures 1 to 3 The connecting structure 50 is connected between the body and the head 30. On the one hand, the connecting structure 50 fixes the head 30 and drives the head 30 to rotate, thereby realizing the left and right oscillation function to expand the air delivery range of the cooling fan 100. On the other hand, it can optimize the water path layout between the water tank 12 and the wet curtain assembly 36, so that water can be efficiently distributed and circulated between the water tank 12 and the wet curtain assembly 36.

[0054] Furthermore, the connecting structure 50 includes a bracket 52 and a oscillating assembly 54. The bracket 52 is connected to the head 30, one end of the oscillating assembly 54 is connected to the body, and the bracket 52 is fixed to the other end of the oscillating assembly 54 and rotates with the oscillating assembly 54, thereby causing the head 30 to rotate relative to the body.

[0055] Please see Figure 4 , Figure 5 as well as Figure 6 The bracket 52 includes an integrally formed main housing 521 and at least one lug 523.

[0056] Specifically, the main housing 521 is provided with a receiving cavity 521a and a plurality of connecting holes 521b. The receiving cavity 521a is used to receive the distribution pipe 72, and each connecting hole 521b is connected to the receiving cavity 521a and the external environment. Therefore, the connecting pipe 74 is connected to the distribution pipe 72 through the connecting hole 521b. One end of each lug 523 is connected to the main housing 521, and the other end extends away from the main housing 521. Each lug 523 is provided with a fixing groove 523a, which is used to limit the connecting pipe 74.

[0057] Thus, the distribution pipe 72 is housed in the bracket 52 and can be connected to the connecting pipe 74 through the bracket 52. The setting of the bracket 52 optimizes the layout of the distribution pipe 72 and the connecting pipe 74, simplifies the structure of the water circulation system, thereby improving the efficiency of water distribution and circulation, and realizing the efficient operation of the water circulation system.

[0058] In the following embodiments, the direction of extension of the fuselage is defined as the first direction (i.e., Figure 2 In the Z direction), the axial direction of the machine head 30 is defined as the second direction (i.e., Figure 3 In the X direction), the length direction of the wet curtain assembly 36 is defined as the third direction (i.e., the X direction). Figure 2 In the Y direction), the first direction, the second direction, and the third direction intersect each other, and in a preferred embodiment, the first direction, the second direction, and the third direction are perpendicular to each other.

[0059] Please continue reading. Figure 4 , Figure 5 as well as Figure 6 The main housing 521 is generally a hollow cubic structure with one open end. The height direction of the main housing 521 is parallel to the first direction, the length direction of the main housing 521 is parallel to the second direction, and the width direction of the main housing 521 is parallel to the third direction. The main housing 521 has a housing bottom wall and a housing side wall extending from the edge of the housing bottom wall along the first direction toward the machine head 30. The housing side wall surrounds the housing bottom wall axially to form a receiving cavity 521a. The receiving cavity 521a has a closed end and an open end that are disposed opposite to each other in the first direction, and the open end is located on the side of the closed end closer to the machine head 30.

[0060] Furthermore, in some embodiments, the support 52 further includes a separator 525 located within the receiving cavity 521a, thereby dividing the receiving cavity 521a into at least two sub-receiving cavities 521a spaced apart in a third direction. Each distribution tube 72 is correspondingly received within one sub-receiving cavity 521a. While serving a separating function, the separator 525 can also effectively improve the structural strength of the support 52.

[0061] In one specific embodiment, since the cooling fan 100 includes two distribution pipes 72, the bracket 52 includes a separator 525 that divides the receiving cavity 521a into two sub-receiving cavities 521a, and the two sub-receiving cavities 521a are spaced apart in the third direction, with each distribution pipe 72 independently housed in one sub-receiving cavity 521a.

[0062] Furthermore, each sub-accommodating cavity 521a has three connecting holes 521b, one of which is located on the bottom wall of the housing, and the other two are located on opposite sides of the side wall of the housing in the first direction. The three connecting holes 521b are connected to the three connecting ports of the distribution pipe 72, and the end face of the connecting port of the distribution pipe 72 abuts against the inner surface of the main housing 521.

[0063] Please see Figures 5 to 8 Specifically, in some embodiments, the bracket 52 includes two lugs 523, which are located on opposite sides of the main housing 521 in the second direction. In a preferred embodiment, the two lugs 523 are biased towards one side of 521 in the third direction, thereby providing wiring space for the sub-connecting pipe 741 led out from one of the distribution pipes.

[0064] In one embodiment, each lug 523 includes a first extension 5231, a second extension 5232, and a third extension 5233 connected in sequence. The first extension 5231 is connected to the main housing 521 and is flush with the opening end of the receiving cavity 521a in a first direction; the second extension 5232 extends from the first extension 5231 in a direction away from the main housing 521 along the first direction; the third extension 5233 extends from the second extension 5232 in a direction away from the main housing 521 and is parallel to the first extension 5231.

[0065] It is understood that the widths of the first extension 5231, the second extension 5232, and the third extension 5233 can be set according to the shape of the air duct assembly 32, and the shape and size of the two lugs 523 can be the same or different, so as to adapt to the shape of the air duct assembly 32 and prevent the lugs 523 from interfering with the air duct assembly 32 and affecting the normal operation of the air cooler 100.

[0066] Specifically, in some embodiments, the width of the first extension 5231 of the lug 523 near the rack 321 of the air duct assembly 32 in the first direction is 2-3 times the width of the rack 321, and is greater than the width of the first extension 5231 of the other lug 523 away from the rack 321 in the second direction, thereby effectively preventing interference between the lug 523 and the rack 321. The third extension 5233 of each lug 523 extends 5mm-10mm beyond the two end faces of the air duct assembly 32 in the second direction, thereby preventing interference between the lug 523 and the air duct assembly 32.

[0067] Furthermore, each lug 523 has two fixing portions 5234 at its end furthest from the main housing 521 in the second direction. The two fixing portions 5234 are spaced apart in the third direction, and a fixing groove 523a is formed between two adjacent fixing portions 5234. Each fixing portion 5234 has a fixing hole. In this way, the bracket 52 assembly is fixedly connected to the head 30 through the fixing hole, and the sub-connecting pipe 741 led out from the distribution pipe 72 can pass through the fixing groove 523a and enter the head 30.

[0068] like Figure 9 As shown, in some embodiments, the bottom wall of the main housing 521 of the bracket 52 is provided with a plurality of connection holes 521c. The bracket 52 is fixed to the oscillating assembly 54 through the connection holes 521c. Furthermore, a rib 521d protrudes from the side of the bottom wall of the housing facing away from the receiving cavity 521a and surrounds the connection hole 521c in the circumferential direction, thereby improving the structural strength of the main housing 52.

[0069] Please refer to the previous document. Figure 5In some embodiments, the bracket 52 further includes a mounting portion 527, one end of which is connected to the third-party side of the main housing 521, and the other end of which extends along the third-party direction away from the main housing 521 for mounting the oscillation drive component 34 of the fan head 30. Thus, the bracket 52 of this application integrates the mounting portion 527 for mounting the oscillation drive component 34, effectively improving the functionality and space utilization of the bracket 52, and reducing the maintenance difficulty and cost of the air cooler 100.

[0070] Please combine Figure 10 and Figure 11 As shown, the oscillating assembly 54 includes a fixed base 541, a drive component 543, and a rotating shaft 545 that are mated to each other.

[0071] Specifically, the fixed base 541 is fixedly connected to the machine body, the drive component 543 is mounted on the fixed base 541, one end of the rotating shaft 545 is rotatably mounted on the fixed base 541 and is connected to the drive component 543 for transmission, and the other end of the rotating shaft 545 is fixed to the bracket 52 through a screw hole. The rotating shaft 545 can rotate relative to the fixed base 541 in a first direction under the drive of the drive component 543, and then connect to the machine head 30 through the bracket 52 to drive the machine head 30 to rotate in the first direction.

[0072] Furthermore, the rotating shaft 545 is provided with a wiring channel 545a, and the fixed base 541 is provided with a wiring groove 541a corresponding to the wiring channel 545a. Two sub-connecting pipes 741 extending from the machine body can pass through the wiring channel 545a and connect to the distribution pipe 72 in the bracket 52 assembly. As a preferred embodiment, the wiring channel 545 has a groove at the end facing the bracket 52 to allow the sub-connecting pipes 741 to pass through, thereby preventing the sub-connecting pipes 741 from being damaged during the machine head's oscillation.

[0073] In the aforementioned bracket 52, by optimizing the structural design and pipe layout, efficient operation of the water circulation system and improved structural strength are achieved, while simplifying the structure of the water circulation system and improving water distribution and circulation efficiency. Furthermore, the addition of ribs 521d enhances the structural strength of the fan head 30 bracket 52, improving the stability and service life of the cooling fan 100. In addition, the bracket 52 integrates a mounting section 527 for installing the oscillating drive component 34, thereby improving the functionality and space utilization of the bracket 52 and reducing maintenance difficulty and cost.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0075] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A bracket for connecting a distribution pipe (72) and a connecting pipe (74), characterized in that, include: The main housing (521) has a receiving cavity (521a) and a plurality of communicating holes (521b) connecting the receiving cavity (521a) to the external environment. The receiving cavity (521a) is used to receive the distribution pipe (72), and the connecting pipe (74) is connected to the distribution pipe (72) through the communicating holes (521b); and At least one lug (523), one end of each lug (523) is connected to the main housing (521), and the other end extends away from the main housing (521). Each lug (523) is provided with a fixing groove (523a) for limiting the connecting tube (74).

2. The bracket according to claim 1, characterized in that, Each of the lugs (523) has at least two spaced fixing parts (5234) at one end away from the main housing (521). The fixing parts (5234) have fixing holes and fixing grooves (523a) are formed between two adjacent fixing parts (5234).

3. The bracket according to claim 2, characterized in that, The receiving cavity (521a) has a closed end and an open end arranged opposite to each other in a first direction, and each of the supporting ears (523) includes a first extension (5231), a second extension (5232) and a second extension (5232) connected in sequence. The first extension (5231) is connected to the main housing (521) and is flush with the opening end in the first direction; the second extension (5232) extends from the end of the first extension (5231) away from the main housing (521) in the first direction away from the receiving cavity (521a); ​​the third extension (5233) extends from the end of the second extension (5232) away from the first extension (5231) in the direction away from the receiving cavity (521a), and the third extension (5233) is parallel to the first extension (5231).

4. The bracket according to claim 1, characterized in that, The support also includes at least one partition (525), all of which are located within the receiving cavity (521a) and divide the receiving cavity (521a) into at least two sub-receiving cavities (521a), each of which is used to receive one of the distribution tubes (72).

5. The bracket according to claim 1, characterized in that, The bracket also includes a mounting part (527), one end of which is connected to the main housing (521), and the other end of which extends away from the main housing (521).

6. A connection structure, characterized in that, The connection structure includes the bracket as described in any one of claims 1 to 5, and further includes a swaying assembly (54), wherein the bracket is fixed to one end of the swaying assembly (54) and rotates with the swaying assembly (54).

7. The connection structure according to claim 6, characterized in that, The head-shaking component (54) includes: Fixture (541); The drive unit (543) is mounted on the fixed base (541); and A rotating shaft (545) is rotatably mounted on the fixed base (541) and is connected to the driving member (543) in a transmission manner. The rotating shaft (545) rotates relative to the fixed base (541) under the drive of the driving member (543). The bracket is connected to the rotating shaft (545).

8. The connection structure according to claim 7, characterized in that, The rotating shaft (545) is provided with a wiring channel (545a), and the fixed base (541) is provided with a wiring groove (541a) corresponding to the wiring channel (545a).

9. A cooling fan, characterized in that, Including the connection structure as described in any one of claims 6 to 8, the cooling fan further includes a body and a head (30), the body and the head (30) being interconnected through the connection structure.

10. The air cooler according to claim 9, characterized in that, The unit body includes a water tank (12), the unit head (30) includes a wet curtain assembly (36), and the cooling fan also includes: At least one distribution tube (72) is housed within the receiving cavity (521a) of the support; At least one set of connecting pipes (74), each set of connecting pipes (74) includes multiple sub-connecting pipes (741), all the sub-connecting pipes (741) of each set of connecting pipes (74) are interconnected through the distribution pipe (72), one end of each sub-connecting pipe (741) passes through the connecting hole (521b) and connects to the connecting port of the distribution pipe (72), and at least a portion of the sub-connecting pipes (741) are confined in the fixing groove (523a).

Images