Detachable mounting structure of a bladeless fan air duct and a base

Abstract

The utility model relates to a kind of detachable mounting structure of bladeless fan air duct and pedestal, using the mechanical connection of "connecting sink groove+installation ring+rotary clamping", with the electric conduction cooperation of "first electric connecting piece+second electric connecting piece", reliable detachable connection of the air duct assembly with pedestal with electronic equipment is realized.Dismantling, installation ring is inserted into rotation, i.e. Mechanical locking, electric connecting piece automatic docking;Reverse rotation can be separated, without special tool, solve traditional air duct with electronic equipment difficult to dismantle problem, improve use flexibility and maintenance convenience.Connection sink groove and installation ring cooperation ensure the coaxiality and the degree of fit of docking, reduce gap, improve air outlet efficiency.No need complex bolt assembly, reduce the number of parts, simplify production assembly, reduce manufacturing cost;Detachable structure is also convenient for transportation storage, reduce transportation damage and cost, realize production end and use end cost double optimization.

Description

Technical Field

[0001] This utility model relates to the field of bladeless fan technology, and in particular to a detachable installation structure for a bladeless fan duct and base. Background Technology

[0002] In the field of bladeless fans, as consumers' demands for product functionality and ease of use continue to increase, the structural design of traditional bladeless fans has gradually exposed many intractable technical bottlenecks, which seriously restrict product experience and market expansion.

[0003] On the one hand, traditional bladeless fans mostly use integrated injection molding or multiple bolt fastening methods to connect the fan base (which houses the fan motor assembly and is the core component for airflow generation) and the air outlet assembly (responsible for guiding and outputting airflow, directly affecting the airflow effect). The former cannot be disassembled at all. When a malfunction occurs and repair is needed, users can only replace the entire product or seek professional repair personnel to disassemble it, which not only results in high maintenance costs but also significantly shortens the actual service life of the product. The latter, although detachable, requires the use of special tools such as screwdrivers to unscrew multiple bolts one by one. The disassembly process is cumbersome, and repeated disassembly and reassembly can easily lead to stripped bolts and deformation of the shell, further compromising structural stability. Ordinary users cannot operate it independently.

[0004] On the other hand, with the upgrading of bladeless fan functions, more and more products are integrating electronic devices into the air outlet components, such as LED lighting modules for creating ambiance, displays showing wind speed and temperature, and heating devices for auxiliary heating in winter. These electronic devices need to establish a stable electrical connection with the control module inside the fan base to achieve power supply and functional control. In traditional designs, direct wire soldering is usually used for connection. Although wire soldering ensures stable conductivity, it directly "binds" the air outlet components to the base, completely eliminating the possibility of disassembly.

[0005] In summary, traditional bladeless fans present an irreconcilable contradiction between detachable design and air ducts with electronic equipment. This not only fails to meet users' needs for convenient maintenance and flexible replacement of air duct components, but also makes it difficult to guarantee the use of bladeless fans with electronic equipment, becoming a key technical pain point that restricts the upgrading of bladeless fan products. Utility Model Content

[0006] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes a detachable installation structure for a bladeless fan duct and base.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A detachable mounting structure for a bladeless fan duct and base includes a fan base and an air outlet assembly. A fan motor assembly is housed within the fan base, and an airflow outlet is located at the upper end of the fan base. The air outlet assembly is detachably mounted on the upper end of the fan base and communicates with the airflow outlet. A connecting groove is provided at the upper end of the fan base, and the airflow outlet is located on the connecting groove. The air outlet assembly includes a connecting end cap that covers the upper end of the fan base, and a mounting ring is provided at the lower end of the connecting end cap. The mounting ring is detachably mounted in the connecting groove via a rotational snap-fit ​​structure. Electronic equipment is also mounted on the air outlet assembly. A first electrical connector electrically connected to the electronic equipment is provided on the connecting end cap. A control module is also housed within the fan base, and a second electrical connector electrically connected to the control module is provided at the upper end of the fan base. When the mounting ring is installed in the connecting groove, the first and second electrical connectors are electrically connected to each other.

[0008] In some embodiments, the rotating snap-fit ​​structure includes a snap-fit ​​flange provided on the outer side wall of the mounting ring, and a snap-fit ​​groove corresponding to the snap-fit ​​flange is provided on the inner side wall of the airflow outlet. The snap-fit ​​groove includes a vertical groove and a horizontal groove communicating with one side of the lower end of the vertical groove. The snap-fit ​​flange rotates and snaps into the horizontal groove after passing through the vertical groove.

[0009] In some embodiments, the vertical slot is a V-shaped structure with a larger upper port and a smaller lower port.

[0010] In some embodiments, a first elastic hook is provided on the side wall of the mounting ring, and a hook groove is provided on the side wall of the connecting groove to cooperate with the first elastic hook. The first elastic hook is horizontally arranged and can hook into the hook groove as the mounting ring rotates.

[0011] In some embodiments, a plurality of second elastic hooks are provided circumferentially at the lower end of the connecting end cover, and a vertical groove corresponding to the second elastic hooks is provided at the upper end of the fan base. A limiting flange is provided on one side of the vertical groove, and the second elastic hooks are vertically disposed in the vertical groove and can hook onto the lower end of the limiting flange as the mounting ring rotates.

[0012] In some embodiments, an arc-shaped groove is provided at the upper end of the fan base, and a sliding seat slides in the arc-shaped groove. The second electrical connector includes a female plug disposed on the sliding seat, and the first electrical connector is a male plug that mates with the female plug.

[0013] In some embodiments, a tension spring is connected to one end of the sliding seat, and the sliding seat is maintained in the shape of being located at one end of the arc-shaped groove under the action of the tension spring.

[0014] In some embodiments, a baffle is provided at the end of the sliding seat away from the tension spring. When the tension spring pulls the sliding seat to one end of the arc-shaped groove, the baffle closes the arc-shaped groove.

[0015] In some embodiments, the first electrical connector is a conductive sheet disposed at the lower end of the mounting ring, and the second electrical connector is a conductive pin disposed on the connecting groove.

[0016] In some embodiments, the electronic device is an electric heating device disposed within the air outlet assembly.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. Through a mechanical connection design of "connecting groove + mounting ring + rotation snap-fit," combined with the conductive engagement of "first electrical connector + second electrical connector," a reliable and detachable connection between the air outlet duct assembly with electronic equipment and the base has been achieved for the first time. During assembly and disassembly, users only need to align the mounting ring of the air outlet duct assembly with the connecting groove of the base and insert it. A rotation completes the mechanical locking, and simultaneously, the first and second electrical connectors automatically and precisely engage for conductivity. Disassembly is achieved by simply rotating in the opposite direction. No special tools are required throughout the process, making operation simple and efficient. This design completely solves the problem of traditional air outlet ducts with electronic equipment being "impossible to disassemble" or "inconvenient to disassemble." Users can easily disassemble air outlet duct duct assemblies with electronic equipment, significantly improving the product's flexibility and ease of maintenance.

[0018] 2. The connection between the recess and the mounting ring provides high-precision positioning, ensuring coaxiality and fit between the air outlet assembly and the base, avoiding gaps caused by positioning deviations in traditional connection methods; it also ensures that the airflow generated by the fan motor assembly can be blown out through the air outlet assembly to the maximum extent, significantly improving the actual airflow efficiency of the bladeless fan.

[0019] 3. Furthermore, the absence of complex bolt-fastening components allows for reliable connection solely through a connecting groove, mounting ring, rotating snap-fit ​​structure, and built-in electrical connectors. This significantly reduces the number of parts, simplifies the product's production and assembly process, and lowers manufacturing costs. Simultaneously, the detachable structure facilitates product transportation and storage, reducing the risk of damage during transport and associated costs, thus achieving cost optimization for both the production and user ends. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the fan base and air outlet assembly of this utility model.

[0021] Figure 2 This is an exploded structural diagram of the fan base and air outlet assembly of this utility model.

[0022] Figure 3 This is a partial structural diagram of the fan base of this utility model.

[0023] Figure 4 This is a partial structural schematic diagram of the air outlet duct assembly of this utility model.

[0024] Figure 5 This is a partial cross-sectional view of the fan base of this utility model. Detailed Implementation

[0025] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0026] like Figures 1-5 The diagram illustrates a detachable mounting structure for a bladeless fan duct and base, comprising a fan base 1 and an air outlet assembly 8. A fan motor assembly is housed within the fan base 1. An air outlet 2 is located at the upper end of the fan base 1. The air outlet assembly is detachably mounted to the upper end of the fan base 1 and communicates with the air outlet 2. A connecting groove 3 is provided at the upper end of the fan base 1, and the air outlet 2 is located on the connecting groove 3. The air outlet assembly 8 includes a connecting end cap 4 that covers the upper end of the fan base 1. A mounting ring 5 is located at the lower end of the connecting end cap 4. The mounting ring 5 is detachably installed in the connecting groove 3 via a rotating snap-fit ​​structure. Electronic equipment is also provided on the air outlet assembly 8. A first electrical connector 6, which is electrically connected to the electronic equipment, is provided on the connecting end cover 4. A control module is also provided in the fan base 1. The control module integrates circuits for motor drive, power management, and electronic equipment control, and is fixed in the fan base 1. A second electrical connector 7, which is electrically connected to the control module, is also provided at the upper end of the fan base 1. When the mounting ring 5 is installed in the connecting groove 3, the first electrical connector 6 and the second electrical connector 7 are electrically connected to each other.

[0027] When assembling the air outlet assembly 8 with the fan base 1, align the mounting ring 5 at the lower end of the connecting end cover 4 with the connecting groove 3 of the fan base 1, and fully insert the mounting ring 5 into the connecting groove 3 until the lower end face of the connecting end cover 4 is in contact with the upper end face of the fan base. At this time, the silicone sealing ring of the air outlet 2 is compressed, achieving a preliminary seal. Rotate the air outlet assembly 8 by 15°-20° to complete the mechanical locking. At the same time, the first electrical connector 6 and the second electrical connector 7 of the connecting end cover are precisely connected to achieve electrical conduction.

[0028] It should be noted that its electronic devices may include LED lighting modules for creating ambiance, displays for showing wind speed and temperature, and heating devices for auxiliary heating in winter.

[0029] Based on the above installation structure, compared with the traditional structure that requires special tools to remove bolts or unlock hidden clips, this solution can complete the installation in two steps: "insert-rotate". Reverse rotation is sufficient for disassembly. The entire process takes ≤10 seconds and requires no tools.

[0030] Moreover, after the first and second electrical connectors are connected, they are hidden inside the connection groove and the mounting ring. This hidden design isolates dust and moisture, ensuring that electronic devices such as LED lights and displays can work stably for a long time and avoiding functional failures caused by electrical connection failures.

[0031] See Figures 2-4 As shown, the rotating snap-fit ​​structure includes a snap-fit ​​flange 21 provided on the outer side wall of the mounting ring 5, and a snap-fit ​​groove 22 corresponding to the snap-fit ​​flange 21 is provided on the inner side wall of the airflow outlet 2. The snap-fit ​​groove 22 includes a vertical groove 23 and a horizontal groove 24 connected to one side of the lower end of the vertical groove 23. The snap-fit ​​flange 21 rotates and snaps into the horizontal groove 24 after passing through the vertical groove 23.

[0032] Specifically, the positions of the snap-fit ​​flange 21 and the vertical slot 23 correspond one-to-one. During assembly, the snap-fit ​​flange 21 and the vertical slot 23 need to be aligned visually or by using "alignment marks". This process can automatically correct the circumferential positional deviation between the mounting ring 5 and the connecting groove 3, ensuring the accuracy of subsequent insertion and rotation actions, and laying the foundation for the alignment of the first electrical connector 6 and the second electrical connector 7. When the snap-fit ​​flange 21 is inserted downward along the vertical slot 23, the side wall of the vertical slot forms an axial guide for the flange, limiting the radial wobbling of the mounting ring 5 during the insertion process, ensuring that the mounting ring can enter the connecting groove 3 vertically and smoothly; until the connecting end cap 4 is in contact with the upper end face of the base, at which point the lower end face of the mounting ring is in contact with the bottom of the connecting groove, the silicone sealing ring at the edge of the air outlet 2 is compressed, achieving preliminary sealing of the mating surface, and at the same time, the snap-fit ​​flange 21 reaches the entrance of the transverse slot 24, completing axial positioning. When the air outlet assembly 8 is rotated, the snap-fit ​​flange 21 slides along the side wall of the transverse slot 24. Since the transverse slot extends circumferentially along the inner side wall of the air outlet and has a limiting protrusion at the end, the flange is limited after sliding to the end of the slot and cannot continue to rotate. At this time, the connection and installation of the air outlet assembly 8 and the fan base 1 are completed.

[0033] Furthermore, the vertical slot 23 has a V-shaped structure with a larger upper port and a smaller lower port, which can reduce the difficulty of alignment and improve the ease of assembly.

[0034] See Figure 2 , Figure 3 As shown, a first elastic hook 41 is provided on the side wall of the mounting ring 5, and a hook groove 42 that cooperates with the first elastic hook 41 is provided on the side wall of the connecting groove 3. The first elastic hook 41 is horizontally arranged and can hook into the hook groove 42 as the mounting ring 5 rotates.

[0035] When the mounting ring 5 is inserted into the connecting groove 3, the hook head of the first elastic hook 41 contacts and is squeezed against the inner wall of the groove, resulting in elastic deformation. Then, when the air outlet assembly is rotated, the first elastic hook 41 rotates synchronously with the mounting ring 5, and the hook head slides on the inner wall of the groove (due to the sprayed wear-resistant coating and smooth treatment, the sliding resistance is small). When the hook rotates to the position of the hook groove opening 42, the squeezing of the hook by the inner wall of the groove disappears, and the hook recovers its deformation under its own elastic force, and the hook head automatically springs into the hook groove opening 42. During disassembly, the external force of reverse rotation causes the hook head of the first elastic hook 41 to contact and squeeze against the side wall of the hook groove opening 42. The external force overcomes the elastic pre-tightening force of the hook, forcing the hook head to undergo lateral elastic deformation again and disengage from the hook groove opening.

[0036] See Figure 2 , Figure 3 As shown, a plurality of second elastic hooks 51 are provided circumferentially at the lower end of the connecting end cover 4, and a vertical groove 52 corresponding to the second elastic hooks 51 is provided at the upper end of the fan base 1. A limiting flange 53 is provided on one side of the vertical groove 52. The second elastic hooks 51 are vertically arranged in the vertical groove 52 and can hook onto the lower end of the limiting flange 53 as the mounting ring 5 rotates.

[0037] When assembling the air outlet assembly 8, first align the second elastic hook 51 at the lower end of the connecting end cover 4 with the vertical groove 52 at the upper end of the fan base 1. The vertical groove is vertically opened along the upper surface of the base, and its width is slightly larger than the thickness of the second elastic hook. Then press the air outlet assembly downwards, and the second elastic hook 51 is vertically inserted along the vertical groove 52 until the lower surface of the connecting end cover 4 is in contact with the upper surface of the base. At this time, the mounting ring 5 is fully inserted into the connecting recess 3. Finally, rotate the air outlet assembly 8, and the second elastic hook 51 rotates circumferentially synchronously with the connecting end cover 4, that is, it moves towards the limiting flange 53. After the air outlet assembly 8 is rotated and installed, the hook head of the second elastic hook 51 rotates to the lower end of the limiting flange 53, thereby restricting the axial movement of the air outlet assembly 8.

[0038] In this structure, the first electrical connector 6 and the second electrical connector 7 preferably have two structures: one is the cooperation of a male plug and a female plug, and the other is the cooperation of an elastic conductive pin and a conductive sheet.

[0039] The first embodiment of the electrical connection is as follows: an arc-shaped groove 61 is provided at the upper end of the fan base 1, and a sliding seat 62 slides in the arc-shaped groove 61. The second electrical connector 7 includes a female plug provided on the sliding seat 62, and the first electrical connector 6 is a male plug that mates with the female plug.

[0040] When assembling the air outlet assembly 8, first align the mounting ring 5 at the lower end of the connecting end cover 4 with the connecting groove 3 of the fan base 1. When the mounting ring 5 is inserted into the connecting groove 3, the first electrical connector 6 (male plug) moves down synchronously with the mounting ring and is inserted into the second electrical connector 7 (female plug) at the upper end of the fan base. Then, when the air outlet assembly 8 is rotated and snapped in place, it can synchronously drive the first electrical connector 6 (male plug) and the second electrical connector 7 (female plug) to rotate, thus realizing the installation of the air outlet assembly 8 and the electrical connection of the first electrical connector 6 and the second electrical connector 7.

[0041] The male-female plug mating structure has the advantages of "large contact area and stable insertion and extraction force", making it suitable for high-voltage electronic equipment such as electric heating devices.

[0042] Furthermore, a tension spring 71 is connected to one end of the sliding seat 62. Under the action of the tension spring 71, the sliding seat 62 is maintained in the shape of being located at one end of the arc-shaped groove 61. A baffle 81 is provided at the end of the sliding seat 62 away from the tension spring 71. When the tension spring 71 pulls the sliding seat 62 to one end of the arc-shaped groove 61, the baffle 81 closes the arc-shaped groove 61.

[0043] When the tension spring is in a naturally stretched state, it holds the sliding seat 62 firmly in the "initial positioning end" of the arc-shaped groove 61 through continuous elastic tension. At this time, the second electrical connector 7 (female plug) on ​​the sliding seat is in a fixed position synchronously with the sliding seat, which precisely corresponds to the initial installation position of the first electrical connector 6 (male plug) on ​​the air outlet assembly. This position will not shift due to transportation bumps or handling vibrations, laying the foundation for the electrical connection alignment in subsequent assembly. When the male plug contacts the female plug, the circumferential thrust generated overcomes the elastic tension of the tension spring 71 and pushes the sliding seat 62 to slide away from the initial positioning end along the arc-shaped groove 61.

[0044] In addition, when the air outlet assembly is disassembled, when the sliding seat 62 is fixed at the initial positioning end by the tension spring 71, the baffle 81 moves synchronously with the sliding seat 62 into the arc-shaped slide groove 61, completely covering the slide groove opening, forming a closed barrier to prevent external dust, hair, liquid debris and other impurities from entering the slide groove and the fan base 1, and to prevent dust from adhering to the side wall of the slide groove or the control module and motor assembly inside the base.

[0045] The second embodiment of the electrical connection is as follows: the first electrical connector 6 is a conductive sheet located at the lower end of the mounting ring 5, and the second electrical connector 7 is a conductive pin located on the connecting groove 3. The conductive pin is an elastic conductive pin. When the mounting ring 5 is locked by the rotation snap-fit ​​structure, the conductive pin 7 remains tightly attached to the conductive sheet 6 under the action of elasticity. Of course, the structure of the conductive sheet and the conductive pin is the existing conventional setting, which will not be described in detail here.

[0046] The contact structure between the conductive sheet and the conductive needle is suitable for low-voltage electronic devices, such as sensors.

[0047] Of course, a bladeless fan can simultaneously incorporate a male and female plug mating structure and a conductive plate and conductive pin contact structure, thus allowing the bladeless fan to integrate high-voltage electronic equipment (such as electric heating devices) and low-voltage electronic equipment (such as temperature sensors).

[0048] Based on the accompanying drawings and the foregoing display and description of the basic principles, main features, and advantages of this utility model, those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A detachable mounting structure for a bladeless fan duct and base, comprising a fan base (1) and an air outlet assembly (8), wherein a fan motor assembly is disposed within the fan base (1), and an air outlet (2) is disposed at the upper end of the fan base (1), and the duct assembly is detachably mounted on the upper end of the fan base (1) and communicates with the air outlet (2), characterized in that: A connecting groove (3) is provided at the upper end of the fan base (1), and the air outlet (2) is provided on the connecting groove (3). The air outlet assembly (8) includes a connecting end cap (4) that covers the upper end of the fan base (1). A mounting ring (5) is provided at the lower end of the connecting end cap (4). The mounting ring (5) is detachably installed in the connecting groove (3) by a rotating snap-fit ​​structure. An electronic device is also provided on the air outlet assembly (8). A first electrical connector (6) that is electrically connected to the electronic device is provided on the connecting end cap (4). A control module is also provided in the fan base (1). A second electrical connector (7) that is electrically connected to the control module is also provided at the upper end of the fan base (1). When the mounting ring (5) is installed in the connecting groove (3), the first electrical connector (6) and the second electrical connector (7) are electrically connected to each other.

2. The detachable installation structure of a bladeless fan duct and base according to claim 1, characterized in that: The rotating snap-fit ​​structure includes a snap-fit ​​flange (21) provided on the outer side wall of the mounting ring (5), and a snap-fit ​​groove (22) corresponding to the snap-fit ​​flange (21) is provided on the inner side wall of the air outlet (2). The snap-fit ​​groove (22) includes a vertical groove (23) and a horizontal groove (24) connected to the lower end of the vertical groove (23). The snap-fit ​​flange (21) rotates and snaps into the horizontal groove (24) after passing through the vertical groove (23).

3. The detachable installation structure of a bladeless fan duct and base according to claim 2, characterized in that: The vertical slot (23) is a V-shaped structure with a larger upper port and a smaller lower port.

4. The detachable installation structure of a bladeless fan duct and base according to claim 1, characterized in that: A first elastic hook (41) is provided on the side wall of the mounting ring (5), and a hook groove (42) that cooperates with the first elastic hook (41) is provided on the side wall of the connecting groove (3). The first elastic hook (41) is horizontally arranged and can follow the rotation of the mounting ring (5) to hook into the hook groove (42).

5. The detachable installation structure of a bladeless fan duct and base according to claim 1, characterized in that: A plurality of second elastic hooks (51) are provided circumferentially at the lower end of the connecting end cover (4). A vertical groove (52) corresponding to the second elastic hooks (51) is provided at the upper end of the fan base (1). A limiting flange (53) is provided on one side of the vertical groove (52). The second elastic hooks (51) are vertically disposed in the vertical groove (52) and can hook onto the lower end of the limiting flange (53) as the mounting ring (5) rotates.

6. The detachable installation structure of a bladeless fan duct and base according to claim 1, characterized in that: An arc-shaped groove (61) is provided at the upper end of the fan base (1), and a sliding seat (62) slides in the arc-shaped groove (61). The second electrical connector (7) includes a female plug provided on the sliding seat (62), and the first electrical connector (6) is a male plug that mates with the female plug.

7. The detachable installation structure of a bladeless fan duct and base according to claim 6, characterized in that: A tension spring (71) is connected to one end of the sliding seat (62), and the sliding seat (62) is maintained in the shape of being located at one end of the arc-shaped groove (61) under the action of the tension spring (71).

8. The detachable installation structure of a bladeless fan duct and base according to claim 7, characterized in that: A baffle (81) is provided at the end of the sliding seat (62) away from the tension spring (71). When the tension spring (71) pulls the sliding seat (62) to one end of the arc-shaped groove (61), the baffle (81) closes the arc-shaped groove (61).

9. The detachable installation structure of a bladeless fan duct and base according to claim 1, characterized in that: The first electrical connector (6) is a conductive sheet located at the lower end of the mounting ring (5), and the second electrical connector (7) is a conductive pin located on the connecting groove (3).

10. The detachable installation structure of a bladeless fan duct and base according to claim 1, characterized in that: The electronic device is an electric heating device located within the air outlet assembly (8).

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