Assembly structure and fan

Abstract

This invention discloses an assembly structure and a fan. The assembly structure includes a duct cover, a handle, and a first positioning component. The duct cover has a limiting gap, and the handle has a first limiting part. The handle can move or rotate relative to the duct cover, causing the first limiting part to move into the limiting gap. The first positioning component cooperates with the duct cover and the handle to fix the handle relative to the duct cover. This assembly structure, through the limiting gap limiting the first limiting part and the first positioning component preventing the first limiting part from disengaging from the limiting gap, achieves a fixed assembly of the handle and the duct cover. Since elastic deformation is not used for snap-fit ​​during assembly, the problem of the handle falling off due to elastic snap failure is avoided, ensuring a continuous tight fit between the handle and the duct cover, thus improving durability.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to an assembly structure and a fan. Background Technology

[0002] Among home appliances, fans, used for cooling and increasing indoor air circulation, have advantages such as low price and ease of use, resulting in high demand. As people's requirements for indoor environments become increasingly stringent, fans are constantly being improved. Among them, circulation fans, with their large air volume and long air delivery distance, are gaining an increasing market share. However, the traditional fan structure is prone to structural failure during disassembly and assembly, leading to poor fan durability. Summary of the Invention

[0003] Based on this, the present invention aims to overcome the defects of existing fan structures that cause structural failure and affect durability during disassembly and assembly, and to provide an assembly structure and fan that do not cause structural failure during disassembly and assembly and have better durability.

[0004] The technical solution is as follows:

[0005] An assembly structure includes an air duct cover, a handle, and a first positioning member. The air duct cover has a limiting gap, and the handle has a first limiting part. The handle can move or rotate relative to the air duct cover, so that the first limiting part is displaced into the limiting gap. The first positioning member cooperates with the air duct cover and the handle to fix the handle relative to the air duct cover.

[0006] In the above-described assembly structure, when assembling the handle with the duct cover, the handle and the duct cover can be moved or rotated relative to each other, causing the first limiting part to move into the limiting gap. The limiting gap can limit the first limiting part. Then, the first positioning component is assembled. By using the cooperation between the first positioning component and the duct cover and the handle, the handle and the duct cover are relatively fixed and do not move. At this time, the first limiting part will not leave the limiting gap. By limiting the first limiting part through the limiting gap and ensuring that the first limiting part does not leave the limiting gap through the first positioning component, the fixed assembly of the handle and the duct cover can be achieved. Since elastic deformation is not used for snap-fit ​​during the assembly process, the problem of the handle falling off due to the failure of the elastic snap can be avoided. This ensures that the handle and the duct cover can maintain a tight fit, improving durability.

[0007] In one embodiment, the duct cover includes a main body and a rear cover, the main body and the rear cover are detachably connected, the main body is provided with an assembly groove, the rear cover is provided with a partition, the partition extends into the assembly groove, so that the assembly groove is divided into a motor installation space and a wiring space.

[0008] In one embodiment, the rear cover is provided with a second limiting part, and the limiting gap is formed between the second limiting part and the rear cover. The second limiting part is located on the side of the rear cover away from the separator.

[0009] In one embodiment, the rear cover has a relief groove on the side away from the main body, the second limiting part is provided on the side wall of the relief groove, and the limiting gap is formed between the second limiting part and the bottom wall of the relief groove, and the handle can rotate relative to the rear cover.

[0010] In one embodiment, the handle is provided with a stop portion, and the stop portion and the limiting gap are arranged sequentially along the circumferential direction of the relief groove.

[0011] In one embodiment, the handle includes a grip and a buckle, the buckle being inserted into the relief groove, the first limiting portion being disposed on the buckle, the grip including an outer ring and a handle, the buckle being connected to the outer ring, the outer ring matching the relief groove, the outer ring being a ring structure, and the handle being disposed inside the outer ring.

[0012] In one embodiment, the number of the second limiting portions is at least two, and the two second limiting portions are arranged circumferentially apart along the relief groove, forming a moving space between two adjacent second limiting portions for the first limiting portion to pass through.

[0013] In one embodiment, the main body includes an air duct, an installation part, and a support part. The air duct is used to form a ventilation channel. The installation part is spaced apart from the inner wall of the ventilation channel. The installation part and the ventilation channel are connected by the support part. The mounting groove is provided on the installation part. The rear cover is detachably connected to the installation part.

[0014] In one embodiment, the mounting portion is provided with a first mating portion, and the rear cover is provided with a second mating portion, wherein the first mating portion and the second mating portion are a concave-convex mating structure.

[0015] In one embodiment, the above-mentioned assembly structure further includes a second positioning member. The mounting part is provided with a first assembly hole, and the rear cover is provided with a second assembly hole. The second positioning member passes through the first assembly hole and the second assembly hole in sequence.

[0016] In one embodiment, the motor mounting space is connected to the wiring space.

[0017] In one embodiment, the first positioning member is sequentially inserted through the handle and the air duct cover.

[0018] In one embodiment, the handle is provided with a third mounting hole, the air duct cover is provided with a fourth mounting hole that matches the third mounting hole, and the first positioning member passes through the third mounting hole and is threadedly engaged with the fourth mounting hole.

[0019] In one embodiment, the handle is provided with a positioning groove, the first positioning member is slidably engaged with the cover, the first positioning member has a first position and a second position, the first position and the second position are respectively arranged sequentially along the sliding direction of the first positioning member, when the first positioning member is in the first position, the first positioning member is inserted into the positioning groove, when the first positioning member is in the second position, the first positioning member is disengaged from the positioning groove.

[0020] A fan comprising the assembly structure described in any of the preceding claims.

[0021] In the aforementioned fan, when assembling the handle with the duct cover, the handle and the duct cover can be moved or rotated relative to each other, causing the first limiting part to move into the limiting gap. The limiting gap can limit the first limiting part. Then, the first positioning component is assembled. By utilizing the cooperation between the first positioning component and the duct cover and the handle, the handle and the duct cover are relatively fixed and do not move. At this time, the first limiting part will not leave the limiting gap. By limiting the first limiting part through the limiting gap and ensuring that the first limiting part does not leave the limiting gap through the first positioning component, the handle and the duct cover can be fixedly assembled. Since elastic deformation is not used for snap-fit ​​during the assembly process, the problem of the handle falling off due to the failure of the elastic snap can be avoided. This ensures that the handle and the duct cover can maintain a tight fit, improving durability. Attached Figure Description

[0022] 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.

[0023] 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.

[0024] Figure 1 This is an exploded view of the assembly structure described in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the handle structure according to an embodiment of the present invention;

[0026] Figure 3This is a front view of the rear cover as described in an embodiment of the present invention;

[0027] Figure 4 for Figure 3 Sectional view along axis AA;

[0028] Figure 5 This is a cross-sectional view of the main body described in an embodiment of the present invention;

[0029] Figure 6 This is a side view of the rear cover according to an embodiment of the present invention;

[0030] Figure 7 for Figure 5 Rear view;

[0031] Figure 8 for Figure 2 The front view.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Air duct cover; 101. Limiting gap; 102. Second limiting part; 110. Main body; 111. Assembly groove; 112. Air duct part; 112a. Ventilation channel; 113. Mounting part; 113a. First mating part; 113b. First mounting hole; 114. Support part; 120. Rear cover; 121. Divider; 122. Relief groove; 123. Second mounting hole; 124. Fourth mounting hole; 200. Handle; 201. First limiting part; 202. Stop part; 203. Third mounting hole; 210. Grip body; 211. Outer ring part; 212. Handle; 220. Buckle body. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be 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 the present invention. However, the present invention can be practiced 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 the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] like Figures 1 to 4 As shown, one embodiment discloses an assembly structure including a duct cover 100, a handle 200, and a first positioning member. The duct cover 100 is provided with a limiting gap 101, and the handle 200 is provided with a first limiting part 201. The handle 200 can move or rotate relative to the duct cover 100, so that the first limiting part 201 is displaced into the limiting gap 101. The first positioning member cooperates with the duct cover 100 and the handle 200 to fix the handle 200 relative to the duct cover 100.

[0036] In the above-described assembly structure, when the handle is assembled with the duct cover 100, the handle 200 can be moved or rotated relative to the duct cover 100, causing the first limiting part 201 to move into the limiting gap 101. The limiting gap 101 can limit the first limiting part 201. Then, the first positioning component is assembled. By utilizing the cooperation between the first positioning component and the duct cover 100 and the handle 200, the handle 200 is relatively fixed to the duct cover 100 and does not move. At this time, the first limiting part 201 will not detach. The first limiting part 201 is limited by the limiting gap 101, and the first positioning member prevents the first limiting part 201 from disengaging from the limiting gap 101. This enables the handle 200 to be fixedly assembled with the air duct cover 100. Since no elastic deformation is used for snap-fit ​​during the assembly process, the problem of the handle 200 falling off due to the failure of the elastic snap can be avoided. This ensures that the handle 200 and the air duct cover 100 can maintain a tight fit, thus improving durability.

[0037] In one embodiment, such as Figure 1 , Figure 5 and Figure 6 As shown, the duct cover 100 includes a main body 110 and a rear cover 120. The main body 110 and the rear cover 120 are detachably connected. The main body 110 is provided with an assembly groove 111, and the rear cover 120 is provided with a separator 121. The separator 121 extends into the assembly groove 111, dividing the assembly groove 111 into a motor mounting space and a wiring space. The assembly groove 111 of the rear cover 120 and the main body 110 can form a space for installing equipment such as motors. The separator 121 can divide the assembly groove 111 on the main body 110 into a motor mounting space and a wiring space. The motor mounting space can be used to install motors, and the wiring space can be used to arrange wiring, allowing the wiring to be led out from the wiring space. The separator 121 can separate the motor and the wiring, reducing the mutual interference between the motor and the wiring.

[0038] In one embodiment, such as Figures 2 to 4 As shown, the rear cover 120 is provided with a second limiting part 102, and a limiting gap 101 is formed between the second limiting part 102 and the rear cover 120. The second limiting part 102 is located on the side of the rear cover 120 away from the separator 121. At this time, by moving or rotating the handle 200, the first limiting part 201 can be displaced into the limiting gap 101, thereby partially limiting the first limiting part 201. At the same time, the two sides of the rear cover 120 are respectively assembled with the main body 110 and the handle 200, making the overall assembly structure more compact and simplified, and reducing space occupation.

[0039] In other embodiments, a structural groove is provided on the rear cover 120, and the aforementioned limiting gap 101 is formed between two opposite groove walls of the structural groove, which can also be used to limit the first limiting part 201.

[0040] In other embodiments, the second limiting part 102 may also be provided on the main body 110, in which case the handle 200 cooperates with the main body 110.

[0041] In one embodiment, such as Figure 1 and Figure 4 As shown, a clearance groove 122 is provided on the side of the rear cover 120 away from the main body 110. A second limiting part 102 is provided on the side wall of the clearance groove 122, and a limiting gap 101 is formed between the second limiting part 102 and the bottom wall of the clearance groove 122. The handle 200 can rotate relative to the rear cover 120. At this time, the handle 200 can be inserted into the clearance groove 122, so that the first limiting part 201 moves to the side of the second limiting part 102 near the bottom wall of the clearance groove 122. Then, the handle 200 is rotated, and the first limiting part 201 can rotate into the limiting gap 101. Since the clearance groove 122 is provided on the rear cover 120, the portion of the handle 200 exposed on the rear cover 120 can be reduced after assembly with the handle 200, making the overall structure after assembly more reasonable.

[0042] In other embodiments, the rear cover 120 is provided with a protrusion, and the second limiting part 102 is provided on the outer side wall of the protrusion. A limiting gap 101 is formed between the second limiting part 102 and the rear cover 120. The handle 200 is cylindrical and can be sleeved on the outside of the protrusion. The first limiting part 201 is provided on the inner wall of the handle 200. The first limiting part 201 can also be moved into the limiting gap 101 by rotating the handle 200.

[0043] In one embodiment, such as Figure 2 and Figure 4 As shown, the handle 200 is provided with a stop part 202, and the stop part 202 and the limiting gap 101 are arranged sequentially along the circumferential direction of the relief groove 122. When the first limiting part 201 rotates into the limiting gap 101, if the first limiting part 201 continues to rotate, it will be blocked by the stop part 202, which is used to prevent the first limiting part 201 from continuing to rotate to the position of disengaging from the limiting gap 101. Therefore, it can be ensured that the first limiting part 201 can move into the limiting gap 101 by rotation, which facilitates operation.

[0044] Specifically, the limiting gap 101 has a stop part 202 on only one side, and the other side is used for the first limiting part 201 to enter.

[0045] In other embodiments, a stop portion 202 may also be provided on the inner wall of the relief groove 122. The stop portion 202 is located on the side of the second limiting portion 102 near the bottom wall of the relief groove 122, and the stop portion 202 is connected to the second limiting portion 102; or the gap between the stop portion 202 and the second limiting portion 102 is smaller than the thickness of the first limiting portion 201, which can also limit the rotation of the handle 200, making it easier to determine when the first limiting portion 201 rotates to the limiting gap 101.

[0046] In one embodiment, such as Figure 1 and Figure 2 As shown, the handle 200 includes a gripping body 210 and a buckle body 220. The buckle body 220 is used to extend into the relief groove 122. A first limiting part 201 is provided on the buckle body 220. The gripping body 210 includes an outer ring portion 211 and a handle 212. The buckle body 220 is connected to the outer ring portion 211. The outer ring portion 211 matches the relief groove 122. The outer ring portion 211 has a ring-shaped structure, and the handle 212 is located inside the outer ring portion 211. At this time, after the handle 200 is assembled with the rear cover 120, since the outer ring portion 211 matches the relief groove 122, the entire handle 200 can be located inside the relief groove 122. At the same time, the hand can be inserted into the middle of the outer ring portion 211 and gripped with the handle 212, which is convenient to operate and has a better overall appearance.

[0047] In one embodiment, there are at least two second limiting portions 102, which are spaced apart circumferentially along the clearance groove 122, forming a moving space between adjacent second limiting portions 102 for the first limiting portion 201 to pass through. This results in better limiting effect on the handle 200, more reasonable force distribution on the handle 200 when using it, and less susceptibility to damage.

[0048] In one embodiment, such as Figure 5 and Figure 7 As shown, the main body 110 includes an air duct section 112, a mounting section 113, and a support section 114. The air duct section 112 forms a ventilation channel 112a. The mounting section 113 is spaced apart from the inner wall of the ventilation channel 112a. The mounting section 113 and the ventilation channel 112a are connected by the support section 114. An assembly groove 111 is provided on the mounting section 113. The rear cover 120 is detachably connected to the mounting section 113. At this time, the rear cover 120 and the handle 200 are both located in the middle of the main body 110, which can reduce the impact on the air intake or exhaust, resulting in better air output and more uniform airflow.

[0049] Specifically, the mounting part 113 is located at the axial position of the ventilation channel 112a.

[0050] In one embodiment, such as Figure 6 and Figure 7 As shown, the mounting part 113 is provided with a first mating part 113a, and the rear cover 120 is provided with a second mating part. The first mating part 113a and the second mating part have a concave-convex mating structure. Through the concave-convex mating of the first mating part 113a and the second mating part, relative displacement can be prevented after the rear cover 120 and the mounting part 113 are reassembled. Moreover, if other assembly operations are required, the mating of the first mating part 113a and the second mating part can be used as a pre-positioning, making the operation simpler and more convenient.

[0051] Optionally, both the first mating part 113a and the second mating part are arranged circumferentially along the mounting part 113 to ensure that the rear cover 120 and the mounting part 113 can be coaxially arranged. This improves the accuracy of assembly.

[0052] In one embodiment, such as Figure 3 and Figure 7 As shown, the assembly structure also includes a second positioning member. The mounting part 113 has a first mounting hole 113b, and the rear cover 120 has a second mounting hole 123. The second positioning member passes through the first mounting hole 113b and the second mounting hole 123 in sequence. By passing through the first mounting hole 113b and the second mounting hole 123, the rear cover 120 can be connected and fixed to the mounting part 113, preventing relative rotation between the rear cover 120 and the mounting part 113.

[0053] Specifically, the second positioning element is a screw, which is threaded into the first mounting hole 113b. The assembly method is simple, the cost of the second positioning element is low, and the fixing effect is good.

[0054] Specifically, the number of first mounting holes 113b and second mounting holes 123 are correspondingly set, and there are multiple first mounting holes 113b, which are spaced apart circumferentially along the mounting portion 113. This ensures structural stability after fixed installation.

[0055] In one embodiment, the motor mounting space is connected to the wiring space. This allows for easy routing of wires connected to the motor terminals through the wiring space.

[0056] In one embodiment, the first positioning member is sequentially inserted through the handle 200 and the air duct cover 100. This prevents relative displacement between the handle 200 and the air duct cover 100, and prevents the first limiting part 201 from moving out of the limiting gap 101.

[0057] In one embodiment, such as Figure 3 and Figure 8 As shown, the handle 200 is provided with a third mounting hole 203, and the duct cover 100 is provided with a fourth mounting hole 124 that matches the third mounting hole 203. The first positioning member passes through the third mounting hole 203 and is threaded into the fourth mounting hole 124. This ensures that the handle 200 and the duct cover 100 are relatively fixed, and at the same time, disassembly is convenient, which is conducive to cleaning and maintenance.

[0058] Specifically, the first positioning element can be a screw, bolt, etc.

[0059] In one embodiment, the handle 200 is provided with a positioning groove, and a first positioning member slides in engagement with the cover. The first positioning member has a first position and a second position, which are sequentially arranged along the sliding direction of the first positioning member. When the first positioning member is in the first position, it is inserted into the positioning groove; when it is in the second position, it is disengaged from the positioning groove. In the above structure, by sliding the first positioning member to move it to the first position and insert it into the positioning groove, the relative fixation of the handle 200 and the air duct cover 100 can also be achieved.

[0060] One embodiment discloses a fan including an assembly structure as described in any of the above.

[0061] When assembling the handle and the duct cover 100, the aforementioned fan allows the handle 200 to move or rotate relative to the duct cover 100, displacing the first limiting part 201 into the limiting gap 101. The limiting gap 101 then limits the first limiting part 201. Next, the first positioning component is assembled. The cooperation between the first positioning component and the duct cover 100 and the handle 200 fixes the handle 200 relative to the duct cover 100, preventing displacement. At this time, the first limiting part 201 will not detach. The limiting gap 101 limits the first limiting part 201, and the first positioning member prevents the first limiting part 201 from disengaging from the limiting gap 101. This enables the handle 200 to be fixedly assembled with the air duct cover 100. Since no elastic deformation is used for snap-fit ​​during the assembly process, the problem of the handle 200 falling off due to the failure of the elastic snap can be avoided. This ensures that the handle 200 and the air duct cover 100 can maintain a tight fit, thus improving durability.

[0062] Optionally, the fan blades are located inside the air duct cover 100. Specifically, the fan blades are located on the side of the mounting part 113 away from the rear cover 120. In this case, the airflow flows in through the gap between the mounting part 113 and the air duct part 112, which can form a circular air intake and make the air volume more uniform.

[0063] 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.

[0064] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

[0065] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0066] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of 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. "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.

[0069] It should be noted that when 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. When 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. An assembly structure, characterized in that, The device includes a duct cover, a handle, and a first positioning component. The duct cover has a limiting gap, and the handle has a first limiting part. The handle can move or rotate relative to the duct cover, so that the first limiting part is displaced into the limiting gap. The first positioning component cooperates with the duct cover and the handle to fix the handle relative to the duct cover. The air duct cover includes a main body and a rear cover. The main body and the rear cover are detachably connected. The main body is provided with an assembly groove, and the rear cover is provided with a partition. The partition extends into the assembly groove, so that the assembly groove is divided into a motor installation space and a wiring space. The main body includes an air duct section and an installation section. The air duct section is used to form a ventilation channel. The installation section is spaced apart from the inner wall of the ventilation channel and is located at the axial position of the ventilation channel.

2. The assembly structure according to claim 1, characterized in that, The rear cover is provided with a second limiting part, and the second limiting part and the rear cover form the limiting gap. The second limiting part is located on the side of the rear cover away from the separator.

3. The assembly structure according to claim 2, characterized in that, The rear cover has a relief groove on the side away from the main body, and the second limiting part is provided on the side wall of the relief groove. The second limiting part and the bottom wall of the relief groove form the limiting gap, and the handle can rotate relative to the rear cover.

4. The assembly structure according to claim 3, characterized in that, The handle is provided with a stop part, and the stop part and the limiting gap are arranged sequentially along the circumferential direction of the relief groove.

5. The assembly structure according to claim 4, characterized in that, The handle includes a grip body and a buckle body. The buckle body is used to extend into the relief groove. The first limiting part is provided on the buckle body. The grip body includes an outer ring part and a handle. The buckle body is connected to the outer ring part. The outer ring part matches the relief groove. The outer ring part has a ring structure. The handle is provided inside the outer ring part.

6. The assembly structure according to claim 3, characterized in that, The number of the second limiting parts is at least two, and the two second limiting parts are arranged circumferentially along the relief groove, forming a moving space between two adjacent second limiting parts for the first limiting part to pass through.

7. The assembly structure according to claim 1, characterized in that, The main body includes a support portion, the mounting portion is connected to the ventilation channel through the support portion, the assembly slot is provided on the mounting portion, and the rear cover is detachably connected to the mounting portion.

8. The assembly structure according to claim 7, characterized in that, The mounting part is provided with a first mating part, and the rear cover is provided with a second mating part. The first mating part and the second mating part are a concave-convex mating structure.

9. The assembly structure according to claim 8, characterized in that, It also includes a second positioning component. The mounting part is provided with a first mounting hole, and the rear cover is provided with a second mounting hole. The second positioning component passes through the first mounting hole and the second mounting hole in sequence.

10. The assembly structure according to claim 1, characterized in that, The motor mounting space is connected to the wiring space.

11. The assembly structure according to any one of claims 1-10, characterized in that, The first positioning element is sequentially inserted through the handle and the air duct cover.

12. The assembly structure according to claim 11, characterized in that, The handle is provided with a third mounting hole, and the air duct cover is provided with a fourth mounting hole that matches the third mounting hole. The first positioning member passes through the third mounting hole and is threaded into the fourth mounting hole.

13. The assembly structure according to any one of claims 1-10, characterized in that, The handle is provided with a positioning groove. The first positioning member slides with the air duct cover. The first positioning member has a first position and a second position. The first position and the second position are respectively set sequentially along the sliding direction of the first positioning member. When the first positioning member is in the first position, the first positioning member is inserted into the positioning groove. When the first positioning member is in the second position, the first positioning member is disengaged from the positioning groove.

14. A fan, characterized in that, Including the assembly structure as described in any one of claims 1-13.

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