Cooling auxiliary device and fan

Abstract

The invention provides a cooling auxiliary device and a fan, and relates to the technical field of cooling instruments.The cooling auxiliary device comprises a first main body piece, a second main body piece and an air source driving piece, a first conveying channel is formed in the first main body piece, and a first conveying opening communicating with the first conveying channel is formed in one side of the first main body piece; a second conveying channel is formed in the second main body piece, and a second conveying opening communicating with the second conveying channel is formed in one side of the second main body piece; the gas source driving part is used for increasing the flow speed of gas in the first conveying channel; the first conveying channel is used for conveying air flow to the first conveying opening, and when the air flow flows out of the first conveying opening, a negative pressure area can be formed at the second conveying opening so that water flow in the second conveying channel can be sprayed out of the second conveying opening along with the air flow.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling equipment, and in particular to a cooling auxiliary device and a fan. Background Art

[0002] A water spray cooling fan is a portable cooling device that combines spray and air cooling functions. It is primarily designed to address the limited cooling effect of traditional fans in hot environments. Traditional fans rely solely on air flow to remove body heat, but often struggle to achieve significant cooling in hot or dry environments. This is especially true outdoors, in non-air-conditioned spaces, or during sports events. Users require a device that both delivers air and increases local humidity.

[0003] Traditional small water-spraying fans spray water through a water pump. The water sprayed by the water pump is usually a liquid water column or coarse particle droplets. It is not easy to achieve a fine and uniform atomization effect, which will affect the comfort of the user's face. Summary of the Invention

[0004] The purpose of the present invention is to address the defects and shortcomings of the existing technology and provide a cooling auxiliary device and a fan to at least solve one of the above technical problems. The device has the advantage of spraying more delicate water mist.

[0005] To achieve the above objectives, the present invention provides a cooling auxiliary device and a fan, comprising: A first main body is provided with a first conveying passage therein, and a first conveying opening communicating with the first conveying passage is provided on one side of the first main body; A second main body is provided with a second conveying passage therein, and a second conveying opening communicating with the second conveying passage is provided on one side of the second main body; The first delivery channel is used to deliver compressed air to the first delivery opening. When the compressed air flows out from the first delivery opening, a negative pressure area will be formed at the second delivery opening, so that the water flow in the second delivery channel flows out from the second delivery opening and is impacted by the compressed air flowing out of the first delivery opening to form water mist and spray out.

[0006] Compared with the prior art, the advantages of this application are: The present invention is provided with a first main body and a second main body, wherein a first conveying channel is provided inside the first main body, and a first conveying opening connected to the first conveying channel is provided on one side of the first main body; a second conveying channel is provided inside the second main body, and a second conveying opening connected to the second conveying channel is provided on one side of the second main body. When the air pump conveys compressed air to the first channel, the compressed air is ejected from the first outlet at high speed to form a jet, and a local low-pressure area is formed when the compressed air passes through the second outlet position. The pressure difference causes the water in the second channel to be automatically sucked to the outlet, and the jet air flow and the atomized water flow are mixed outside the outlet to form a fine water mist that diffuses with the air flow, thereby realizing gas-liquid two-phase coordinated cooling. Since the air source drive component is not in direct contact with water, the problems of scale accumulation, blockage and bearing rust common in traditional water pumps are avoided, and the service life is longer and the maintenance cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0008] Figure 1 This is a partial structural axonometric diagram of a cooling auxiliary device according to an embodiment of the present invention; Figure 2 This is a schematic isometric view of a portion of the cooling auxiliary device according to an embodiment of the present invention from another angle; Figure 3 It is a schematic diagram of the back side of a part of the structure of an embodiment of the present invention; Figure 4 It is a schematic front view of part of the structure of an embodiment of the present invention; Figure 5 Part of the structure of the embodiment of the present invention is along Figure 4 Schematic diagram of the cross section taken along line AA; Figure 6 This is an exploded schematic diagram of a cooling auxiliary device according to an embodiment of the present invention; Figure 7 This is a schematic exploded view from another angle of the cooling auxiliary device according to an embodiment of the present invention.

[0009] Figure 8 This is a schematic exploded view from another angle of the cooling auxiliary device according to an embodiment of the present invention.

[0010] Figure 9 FIG. 1 is a schematic axonometric diagram of a fan according to an embodiment of the present invention.

[0011] Figure 10In the embodiment of the present invention Figure 9 A partial enlarged schematic diagram of part a.

[0012] Figure 11 FIG. 1 is a schematic diagram of the back side of a fan according to an embodiment of the present invention.

[0013] Figure 12 FIG. 1 is a front view of a fan according to an embodiment of the present invention.

[0014] Figure 13 In the embodiment of the present invention, Figure 12 Schematic diagram of the cross section taken along line AA.

[0015] Figure 14 In the embodiment of the present invention Figure 13 A partial enlarged schematic diagram of part b.

[0016] Figure 15 This is an axonometric diagram of the end shell of an embodiment of the present invention.

[0017] Figure 16 FIG. 4 is a side view of a fan according to an embodiment of the present invention.

[0018] Figure 17 In the embodiment of the present invention, Figure 16 Schematic diagram of the cross section taken along line BB.

[0019] Description of reference numerals: 100, first main body; 101, first delivery channel; 102, first delivery opening; 200, second main body; 201, second conveying channel; 202, second conveying opening; 203, third conveying channel; 300, mounting plate; 410, fourth conveying channel; 420, fifth conveying channel; 430, first sleeve; 440, second sleeve; 510, first conveying unit; 520, second conveying unit; 600, first assembly part; 601, first mounting portion; 602, second mounting portion; 603, first mounting column; 604, avoidance through hole; 700, second assembly part; 701, second mounting column; 801, fan body; 802, first blowing assembly; 803, second blowing assembly; 804, air flow conveying device; 805, water source conveying device; 806, water source storage device; 807, air source driving member; 810, end shell; 811, first air outlet; 812, second air outlet; 813, first mounting through hole; 814, second mounting through hole; 820, mounting cover; 821, guide groove; 822, third mounting through hole. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inner," "outer," "back," "side," and "circumferential" in the present invention indicate positions or positional relationships based on those shown in the accompanying drawings. These terms are intended only to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific position, be constructed, or operate in a specific position. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first" and "second" are used only to distinguish between multiple components or structures having the same or similar structures, and do not represent any particular limitation on the order of arrangement or connection relationship.

[0022] Please refer to Figures 1 to 17 An embodiment of the present invention provides a cooling auxiliary device and a fan, comprising: This application proposes a cooling auxiliary device comprising a first main body 100 and a second main body 200. A first delivery channel 101 for conveying airflow is provided within the first main body 100, with a first delivery opening formed on the side thereof; a second delivery channel 201 for conveying waterflow is provided within the second main body 200, with a second delivery opening formed on the side thereof. When high-speed airflow is ejected from the first delivery opening, a negative pressure region is formed at the second delivery opening, causing the water flow in the second delivery channel 201 to flow out of the second delivery opening 202, where it is impacted by the compressed airflow from the first delivery opening and formed into a water mist that is sprayed out.

[0023] Among them, the first delivery channel 101 refers to a fluid passage that runs through the main body, which can be specifically implemented by a hollow tubular structure and is used to guide the directional flow of compressed air. The second delivery channel 201 refers to a liquid passage connected to the water source storage device 806, which can be specifically implemented by an independent tubular structure, and its outlet position forms a spatial matching relationship with the first delivery opening. The negative pressure area refers to the low-pressure area generated when a high-speed airflow passes through a specific structure. Specifically, the negative pressure effect can be enhanced by adjusting the angle between the central axes of the two channel outlets. Specifically, the air source drive component 807 is an air pump, and the power of the air pump can be selected as four watts. When the air pump delivers compressed air to the first channel, the airflow is ejected from the first delivery opening at high speed to form a jet. According to Bernoulli's principle, when the high-speed airflow passes through the second delivery opening, a local low-pressure area will be formed, so that the water body is automatically sucked to the second delivery opening through the second delivery channel, and then impacted by the airflow to form fine water mist and diffuse with the airflow, realizing gas-liquid two-phase coordinated cooling. Compressed airflow refers to the gas whose flow rate is increased by an air pump; furthermore, traditional small fans may also add atomizers to achieve fine spraying of water mist. Although it can improve the fineness and uniformity of the mist to a certain extent, there are two significant defects: first, the microporous structure of the atomizer is very easy to be mechanically blocked by impurities such as water scale, resulting in the attenuation of atomization efficiency or even complete failure. Second, the atomizer is also easily damaged when it is powered on for a long time and is in high-frequency vibration. The present application can form fine water mist while eliminating the atomizer, which not only ensures the experience of water mist spraying on the user's face, but also fundamentally eliminates the performance attenuation problem caused by microporous blockage of the atomizer or high-frequency vibration fatigue, significantly improving the reliability and service life of the product.

[0024] In this embodiment, the end of the second main member is located in front of the first delivery opening and partially blocks the first delivery opening. An angle is formed between the central axis of the first delivery opening and the central axis of the second delivery opening. Furthermore, the end of the second main member is located in front of the first delivery opening and blocks half of the first delivery opening, thereby optimizing the size and position of the negative pressure zone, ensuring that the negative pressure zone precisely acts on the water flow portion of the second delivery channel, thereby improving the water atomization effect and enhancing the cooling efficiency. The central axis of the first delivery opening 102 is perpendicular to the central axis of the second delivery opening 202. The central axis refers to the geometric centerline of the first and second delivery openings in space. A perpendicular arrangement means that the central axes of the first and second delivery openings form a 90-degree angle, which can be achieved through an orthogonal pipe layout. Specifically, when the high-speed airflow is ejected vertically from the first delivery opening 102, its flow direction forms a spatially orthogonal relationship with the direction of the water flow ejected from the second delivery opening 202. This layout creates an annular negative pressure zone outside the second delivery opening 202, accelerating the water flow into fine droplets under the action of the negative pressure.

[0025] In this embodiment, the apertures of the first delivery opening and the second delivery opening are both within 2 mm. Optionally, the aperture of the first delivery opening is 0.5 mm, and the aperture of the second delivery opening is 0.4 mm.

[0026] See Figures 1-8 In this embodiment, a mounting plate 300 is further proposed. The first main body 100 is integrally molded on the mounting plate 300, and the second main body 200 is integrally molded on the mounting plate 300 or integrally molded on the first main body 100. The mounting plate 300 refers to a support structure that supports the main body. Specifically, it can be implemented by an injection-molded plastic substrate. Its planar dimensions can be adjusted according to the layout requirements of the main body. Integral molding refers to the fusion of different components into a whole through a mold injection molding process. Specifically, it can be implemented by a two-color injection molding process or an insert injection molding process. This process can eliminate traditional assembly gaps and improve structural sealing. Specifically, when the molten material is injected into the mold, the first main body 100 and the mounting plate 300 are combined to form a seamless integral structure. The second main body 200 can be directly molded with the mounting plate 300 or extended and molded by attaching to the first main body 100. At the intersection of the air conveying channel and the water conveying channel, the integral molding process can eliminate the assembly errors existing in the traditional split structure. In this embodiment, a battery is also included to power the various components in the fan.

[0027] See Figure 5 、 Figure 14 In this embodiment, it is further proposed that the first conveying channel 101 and the second conveying channel 201 both include a columnar first conveying portion 510 and a conical second conveying portion 520, and the second conveying portion 520 is connected to the first conveying opening 102 and the second conveying opening 202.

[0028] The cylindrical first delivery portion 510 is a fluid guide structure having a cylindrical cross-section, which can be implemented using a metal tube or plastic tube with a smooth inner wall. The conical second delivery portion 520 is a guide structure having a cross-sectional diameter that gradually decreases along the fluid flow direction.

[0029] Specifically, the cylindrical first delivery section 510 receives and stably delivers air or water flow, while the tapered second delivery section 520 accelerates the fluid flow rate by reducing its cross-section. When the airflow enters the tapered section from the cylindrical section of the first delivery channel 101, the flow rate increases, forming a high-speed jet at the first delivery opening 102. The negative pressure zone created by this jet draws the water flow within the second delivery channel 201 into the water flow, causing it to mix with the air. The cylindrical section of the second delivery channel 201 maintains stable water flow, while its tapered section accelerates the water flow and enhances its mixing with the airflow.

[0030] In this embodiment, a cooling auxiliary device is further proposed. A third delivery channel 203 connected to the second delivery channel 201 is provided on the top of the second main body 200. The second delivery channel 201 and the third delivery channel 203 are connected to the water source storage device 806 through the water source delivery device 805.

[0031] The third delivery channel 203 is an auxiliary water flow channel located at the top of the second main body 200. Specifically, it can be implemented as an independent pipe or a branch channel formed by a common wall with the second delivery channel 201, which is used to expand the water flow path. The water source delivery device 805 is a fluid conduction mechanism connecting the delivery channel and the water storage container, and can be implemented as a conduit. The water source storage device 806 is a container for storing cooling liquid, and can be implemented as a removable water tank or a built-in liquid storage chamber to facilitate the replenishment and replacement of the cooling medium.

[0032] Specifically, when negative pressure forms within second delivery channel 201, third delivery channel 203 simultaneously generates a siphon effect, drawing water from water source storage device 806 into the delivery channel through water source delivery device 805. The two delivery channels can operate independently or in conjunction. For example, under low water flow conditions, only second delivery channel 201 may be activated, while under high-load conditions, both channels may be activated simultaneously to increase water flow. Under the influence of negative pressure, the water mixes with the airflow and is sprayed out as an atomized atomizer.

[0033] In this embodiment, it is further proposed that the first conveying channel 101 is connected to the air pump through the air flow conveying device 804.

[0034] The airflow conveying device 804 is a connecting structure for connecting the air pump and the first conveying channel 101. Specifically, it can be implemented by a hose or a hard pipe. Its function is to directionally convey the airflow generated by the air pump to the first conveying channel 101. The air pump is a device for generating airflow power. Specifically, it can be implemented by an electric air pump. Its function is to provide a continuous and stable airflow input to the first conveying channel 101. Specifically, the air pump replaces the traditional water pump as the power source, avoiding direct contact of the water with the power device, thereby reducing the risk of component corrosion.

[0035] See Figures 1-8In this embodiment, a cooling auxiliary device is further proposed, including a first assembly part 600 and a second assembly part 700. The first assembly part 600 includes a first mounting portion 601 for mounting the mounting plate 300 and second mounting portions 602 arranged on opposite sides of the first mounting portion 602. A first mounting column 603 is provided on a side of the second mounting part 602 close to the second assembly part 700. A second mounting column 701 is provided on a side of the second assembly part 700 close to the first assembly part 600. The first mounting column 603 can be plugged into the second mounting column 701. A groove body for mounting the mounting plate 300 is recessed under the first mounting part 601.

[0036] First mounting post 603 is a columnar connecting component provided on the side of second mounting portion 602. Specifically, it can be implemented as a cylindrical or square-shaped metal piece, and is designed to form a plug-in fit with second mounting post 701. Second mounting post 701 is a corresponding connecting component provided on the side of second assembly part 700. Specifically, it can be implemented as a hollow sleeve or a column with a groove, and is designed to receive first mounting post 603. A plug-in fit is a fixed connection between two assemblies achieved through the mechanical engagement of the column with the sleeve or groove, without the need for additional fasteners.

[0037] Specifically, the first mounting posts 603 on either side of the second mounting portion 602 are pluggably connected to the second mounting posts 701 of the second assembly 700. When the first mounting posts 603 are inserted into the second mounting posts 701, a stable mechanical connection is formed between the two assemblies, while maintaining connectivity between the first delivery channel 101 and the second delivery channel 201. In this embodiment, the first mounting posts 603 are centrally provided with threaded holes, and the second mounting posts 701 are provided with through-holes, allowing screws to pass through the through-holes and then threadably connect to the threaded holes.

[0038] See Figures 1-15 In this embodiment, it is further proposed that the cooling auxiliary device includes a first assembly part 600 and a second assembly part 700. The first assembly part 600 is provided with a avoidance through hole 604 for avoiding the first conveying channel 101 and the second conveying channel 201. The second assembly part 700 is provided with a fourth conveying channel 410 facing the first conveying channel 101 and a fifth conveying channel 420 facing the second conveying channel 201. The first conveying channel 101 and the fourth conveying channel 410 are connected through a first sleeve 430, and the second conveying channel 201 and the fifth conveying channel 420 are connected through a second sleeve 440.

[0039] The avoidance hole 604 is a through-hole provided on the assembly to avoid the fluid channel. Specifically, it can be implemented as a circular or rectangular hole structure. Its function is to provide an independent space for the fluid channel to avoid structural interference. The fourth delivery channel 410 and the fifth delivery channel 420 are extended flow channels provided corresponding to the first delivery channel 101 and the second delivery channel 201. Their function is to provide a directional transmission path for the fluid. The first sleeve 430 and the second sleeve 440 are sealing connectors connecting different flow channels. Specifically, they can be implemented as hoses made of rubber or silicone. Their function is to compensate for assembly errors and prevent fluid leakage through flexible connections.

[0040] Specifically, the avoidance hole 604 of the first assembly 600 provides independent through-spaces for the air and water channels. The fourth delivery channel 410 of the second assembly 700 forms a continuous airflow path with the first delivery channel 101 via the first sleeve 430, while the fifth delivery channel 420 forms a continuous water flow path with the second delivery channel 201 via the second sleeve 440. During assembly, the sleeves are crimped between the corresponding flow channel ports of the two assembly parts, forming a sealed and detachable connection.

[0041] See Figures 1-15 In this embodiment, a fan is further proposed, including a cooling auxiliary device, including a fan body 801 including a first blowing component 802 and a second blowing component 803 arranged in sequence from top to bottom, and the cooling auxiliary device is arranged between the first blowing component 802 and the second blowing component 803.

[0042] The first blowing assembly 802 is an independent air supply module located above the fan body 801. Specifically, it can be implemented as an axial flow fan or a centrifugal fan to generate directional airflow. The second blowing assembly 803 is an independent air supply module located below the fan body 801. Specifically, it can adopt the same or different structure as the first blowing assembly 802 to enhance the airflow coverage. In this embodiment, the water source storage device 806 is a bucket or water tank that is snapped onto the bottom of the fan body.

[0043] In this embodiment, an end shell 810 is further proposed to be arranged at the air outlet end of the fan main body 801, and the end shell 810 is provided with a first air outlet 811 for the first blowing component 802 to discharge air, a second air outlet 812 for the second blowing component 803 to discharge air, a first mounting through hole 813 for the first mounting column 603 and the second mounting column 701 to pass through, and a second mounting through hole 814 for the sleeve to pass through. A mounting cover 820 is provided on the side of the end shell 810 away from the first blowing component and the second blowing component, and a guide groove 821 is provided in the middle of the mounting cover 820. The bottom and side walls of the guide groove 821 are provided with a third mounting through hole 822 for the first main body 100 and the second main body 200 to pass through.

[0044] The end shell 810 is a plate-like structure covering the outlet end of the fan body 801. It can be injection molded to integrate the air outlet with the mounting structure, achieving directional airflow guidance. The mounting cover 820 is a shell structure located outside the end shell 810, which protects the internal components and forms a diversion space. The diversion groove 821 is a groove structure located in the middle of the mounting cover 820. It can be stamped or cut to adjust the spray path of the mixed air and water flow. The third mounting holes 822 are through-holes formed at the bottom and sidewalls of the guide groove 821. These holes can be drilled or laser cut to secure the positions of the first and second main members 100, 200, ensuring coordinated jetting of water and air. Specifically, the end housing 810 guides the airflow generated by the first and second blowing assemblies 802, 803 through the first and second air outlets 811, 812, respectively. The first and second mounting holes 813, 814 simultaneously connect the mounting post and the sleeve, ensuring a stable assembly of the cooling auxiliary device and the fan body 801. The guide groove 821 of the mounting cover 820 further directs the mixed airflow and waterflow to the target area. The third mounting holes 822 ensure that the jetting direction of the first and second main members 100, 200 aligns with the guiding path of the guide groove 821, thereby enhancing the cooling effect. The airflow generated by the first blowing assembly 802 during operation is transferred downward to the cooling auxiliary device, while the airflow generated by the second blowing assembly 803 during operation is transferred upward to the same area. The cooling assist device utilizes the airflow pressure difference of the first blowing assembly 802. Through its internal channel design, the water is atomized and sprayed without a pump. The sprayed water mist mixes with the upper and lower airflows and then diffuses into the external environment. The synergistic effect of the two blowing assemblies ensures a more even distribution of the water mist and covers a wider area.

[0045] In some embodiments, in order to improve the convenience and flexibility of the cooling device, the cooling auxiliary device, the air pump, and the water source storage device 806 can be composed of a detachable cooling auxiliary module. This module connects the cooling auxiliary device to the air pump via an air pipe, and connects the cooling auxiliary device to the water source storage device 806 via a water pipe. When the user needs to use it, he only needs to detachably connect the cooling auxiliary module to the fan to activate the cooling function. This design allows the user to easily remove the cooling auxiliary module when it is not needed, reducing space occupation and facilitating storage and maintenance. The detachable connection method can be plug-in, threaded connection, etc.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cooling auxiliary device, characterized in that: include: A first main body (100) is provided with a first conveying channel (101) therein, and a first conveying opening (102) communicating with the first conveying channel (101) is provided on one side of the first main body (100); A second main body (200) is provided with a second conveying channel (201) therein, and a second conveying opening (202) communicating with the second conveying channel (201) is provided on one side of the second main body (200); The first delivery channel (101) is used to deliver compressed air to the first delivery opening (102). When the compressed air flows out from the first delivery opening (102), a negative pressure area is formed at the second delivery opening (202), so that the water flow in the second delivery channel (201) flows out from the second delivery opening (202) and is impacted by the compressed air flowing out of the first delivery opening to form water mist.

2. The cooling auxiliary device according to claim 1, characterized in that: The end of the second main body (200) is located in front of the first delivery opening (102) and is used to partially cover the first delivery opening (102), and an angle exists between the central axis of the first delivery opening (102) and the central axis of the second delivery opening (202).

3. The cooling auxiliary device according to claim 1, characterized in that: It comprises a mounting plate (300), the first main body (100) is integrally formed on the mounting plate (300), and the second main body (200) is integrally formed on the mounting plate (300) or integrally formed on the first main body (100).

4. The cooling auxiliary device according to claim 1, wherein: The first conveying channel (101) and the second conveying channel (201) both comprise a columnar first conveying portion (510) and a conical second conveying portion (520), wherein the second conveying portion (520) is connected to the first conveying opening (102) and the second conveying opening (202).

5. The cooling auxiliary device according to claim 1, wherein: A third delivery channel (203) connected to the second delivery channel (201) is provided on the top of the second main body (200); the second delivery channel (201) and the third delivery channel (203) are connected to the water source storage device (806) via a water source delivery device (805).

6. The cooling auxiliary device according to claim 1, wherein: It comprises an air source driving member (807), and the first conveying channel (101) is connected to the air source driving member (807) through the air flow conveying device (804).

7. The cooling auxiliary device according to claim 3, characterized in that: The invention comprises a first assembly part (600) and a second assembly part (700), wherein the first assembly part (600) comprises a first mounting portion (601) for mounting the mounting plate (300) and second mounting portions (602) arranged on opposite sides of the first mounting portion (601), a first mounting post (603) is arranged on a side of the second mounting part (602) close to the second assembly part (700), and a second mounting post (701) is arranged on a side of the second assembly part (700) close to the first assembly part (600), and the first mounting post (603) can be plugged into the second mounting post (701).

8. The cooling auxiliary device according to claim 7, characterized in that: The first assembly part (600) is provided with a through hole (604) for avoiding the first conveying channel (101) and the second conveying channel (201); the second assembly part (700) is provided with a fourth conveying channel (410) facing the first conveying channel (101) and a fifth conveying channel (420) facing the second conveying channel (201); the first conveying channel (101) and the fourth conveying channel (410) are connected through a first sleeve (430); the second conveying channel (201) and the fifth conveying channel (420) are connected through a second sleeve (440).

9. A fan, characterized in that: The cooling auxiliary device comprises the cooling auxiliary device according to any one of claims 1 to 8, comprising a fan body (801), wherein the fan body (801) comprises a first blowing component (802) and a second blowing component (803) arranged in sequence from top to bottom.

10. The fan according to claim 9, wherein The invention comprises an end shell (810) arranged at the air outlet end of the fan body (801), the end shell (810) being provided with a first air outlet (811) for the first blowing assembly (802) to discharge air, a second air outlet (812) for the second blowing assembly (803) to discharge air, a first mounting through hole (813) for the first mounting column (603) and the second mounting column (701) to pass through, and a second mounting through hole (814) for the sleeve to pass through, the cooling auxiliary device being arranged between the first air outlet and the second air outlet (812), a mounting cover (820) being provided on a side of the end shell (810) away from the first air outlet assembly and the second air outlet assembly, a guide groove (821) being provided in the middle of the mounting cover (820), and a third mounting through hole (822) for the first main body (100) and the second main body (200) to pass through being provided at the bottom and side walls of the guide groove (821).

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