Tower fan wind drum connecting structure with dynamic pressure relief and anti-reverse installation functions

Abstract

This utility model discloses a tower fan blower connection structure with dynamic pressure relief and anti-reverse installation functions, including a housing, a blower, a drive component, a mounting component, and a connection assembly. The connection assembly includes a connector, a connector seat, an anti-reverse installation limiting structure, and a pressure relief component. The anti-reverse installation limiting structure consists of ratchet teeth on the outer periphery of the connector and locking claws on the inner wall of the connector seat, ensuring that the blower can only be inserted in the correct direction, avoiding damage caused by reverse insertion during production assembly and user reassembly. The pressure relief component is located between the blower and the mounting component, including an elastic spacer ring and a corrugated buffer pad, used to absorb axial impact and compensate for dimensional tolerances during connection insertion, improving connection smoothness and operational stability. The mounting component has a guide channel to guide the connection insertion and is equipped with a viewing window to assist in judging the assembly status. This structure is suitable for rapid disassembly and assembly scenarios of tower fan blowers, and has good structural error prevention, buffering, and fault tolerance.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a tower fan blower connection structure with dynamic pressure relief and anti-reverse installation functions. Background Technology

[0002] Tower fans, a common type of household ventilation equipment, typically include a blower, motor, connecting components, and detachable structural parts for easy cleaning. Existing technology, such as patent CN202411229556.8, has proposed improving the ease of blower assembly by using mounting components and guide components to form a guide channel. However, this type of structure still has two practical problems:

[0003] First, there is a lack of anti-reverse insertion structure. Most blowers are symmetrically designed, with the connector and connector socket facing roughly the same direction. Users or production personnel are very likely to misjudge and insert the connector in the wrong direction when installing the blower, resulting in improper insertion, jamming, or even complete blockage. In severe cases, it may damage the connecting parts and motor bearings, affecting the service life of the entire machine.

[0004] Secondly, the connection process lacks a pressure-reducing or buffering structure. In traditional structures, the blower connection is generally a rigid snap-fit ​​or screw-fit connection. During the insertion process, factors such as uneven force, misalignment, and thermal expansion and contraction can easily cause insertion difficulties, connection jamming, or loosening. At the same time, during long-term operation, stress concentration can easily lead to abnormal noise, structural fatigue, or even loosening and falling off.

[0005] Therefore, it is urgent to introduce an anti-reverse insertion structure into the tower fan blower connection structure to achieve directional limiting assembly, as well as a buffer and pressure relief structure to adapt to various operating and assembly environments, thereby comprehensively improving assembly efficiency, user operation fault tolerance, and equipment operation reliability. Utility Model Content

[0006] The purpose of this invention is to provide a tower fan blower connection structure with dynamic pressure relief and anti-reverse installation functions to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A tower fan blower connection structure with dynamic pressure relief and anti-reverse installation functions includes a housing, a blower, a drive component, a mounting component, and a connecting assembly. The blower is connected to the drive component through the connecting assembly. The mounting component is disposed between the blower and the drive component. The connecting assembly includes a connector, a connector seat, an anti-reverse installation limiting structure, and a pressure relief component.

[0009] Preferably, the anti-reverse mounting limiting structure includes an anti-rotation ratchet tooth disposed on the outer periphery of the connector and a pawl locking position disposed on the inner wall of the connector seat, wherein the ratchet tooth and the pawl locking position engage only in a single rotational direction.

[0010] Preferably, the pressure relief assembly includes an elastic spacer ring and a corrugated buffer pad, the elastic spacer ring being sleeved on the outside of the connector, and the corrugated buffer pad being disposed between the blower and the mounting component.

[0011] Preferably, the elastic spacer is made of TPV or silicone material, with a compression stroke of 0.5–1.2 mm and a pre-compression stress of 10–25 N.

[0012] Preferably, the mounting component has a guide channel extending toward the connector seat, and the connector slides into the connector seat along the guide channel.

[0013] Preferably, the guide channel has a "V" shaped contraction opening structure with a guide opening width of 8–12 mm, which facilitates guide insertion and alignment.

[0014] Preferably, the connector seat has a transparent window on its outer side for observing the connection status, and the transparent window is integrally formed with the housing.

[0015] Preferably, the connecting component is a plug-in self-locking structure with an insertion depth of 10–15 mm, and can withstand an axial tensile force of ≥30 N after connection.

[0016] Preferably, the driving component is a motor, and the connector and connector seat are connected by a snap-fit ​​quick connection, with the snap-fit ​​structure being a three-claw elastic locking type.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This tower fan blower connection structure with dynamic pressure relief and anti-reverse installation functions is suitable for production assembly lines and user reassembly scenarios, ensuring that the blower can only be inserted in the correct direction.

[0019] 2. This tower fan blower connection structure has dynamic pressure relief and anti-reverse installation functions. During the installation process, it absorbs stress impact, adapts to thermal expansion and contraction errors, and avoids loose connection and structural fatigue.

[0020] 3. This tower fan blower connection structure with dynamic pressure relief and anti-reverse installation functions, combined with a transparent viewing window structure, effectively supports the judgment of assembly results and is suitable for quality inspection and self-inspection operations. Attached Figure Description

[0021] Figure 1 This is an overall sectional view of the tower fan blower connection structure of this utility model;

[0022] Figure 2 A schematic diagram showing the insertion state of the connector into the connector socket along the guide channel;

[0023] Figure 3Diagram showing the fit of the anti-reverse installation limiting structure;

[0024] Figure 4 This is a schematic diagram of the compression deformation of the pressure relief component in the connected state;

[0025] Figure 5 A schematic diagram showing the assembly process for users when reinstalling the blower after cleaning (including a transparent window to aid in judgment).

[0026] In the diagram: 1-Housing, 2-Blower, 3-Driver, 4-Mounting component, 41-Guide channel, 5-Connecting assembly, 51-Connector, 52-Connector seat, 6-Anti-reverse installation limiting structure, 61-Anti-rotation ratchet, 62-Pawl position, 7-Pressure relief assembly, 71-Elastic spacer ring, 72-Corrugated buffer pad, 8-Transparent window. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 5 As shown, the present invention provides a tower fan blower connection structure with dynamic pressure relief and anti-reverse installation functions, including a housing (1), a blower (2), a drive component (3), a mounting component (4), and a connection component (5). The connection component (5) consists of a connector (51), a connector seat (52), an anti-reverse installation limiting structure (6), and a pressure relief component (7).

[0029] The connector (51) is an integral injection molded structure. The main body is cylindrical with an outer diameter of Φ18mm±0.2mm and a length of about 20–25mm. It has 6 one-way anti-rotation ratchet teeth (61) on its outer periphery, which are symmetrically arranged along the axial direction at 120°. Each ratchet tooth has a width of 1.5mm, a height of 1.2mm, and an inclination angle of 30–35°. It only allows clockwise insertion. When inserted in the reverse direction, the ratchet tooth and the pawl (62) mechanically interfere with each other, and the insertion is blocked, thereby realizing the anti-reverse function.

[0030] The connector base (52) is located at the output end of the drive unit (3). A matching limiting groove is opened in the inner cavity. Its inner diameter is Φ18.2mm±0.1mm, and the gap between it and the connector (51) is 0.1–0.2mm, ensuring smooth insertion while providing a stable locking effect. The insertion and extraction depth is controlled at 12–15mm. In the connected state, it can withstand an axial tensile force ≥30N, meeting the structural stability requirements for long-term operation without loosening.

[0031] The pawl locking position (62) in the anti-reverse mounting structure is injection molded from PA66 reinforced nylon, with a heat resistance temperature ≥120℃ and a fatigue life ≥100,000 insertion and removal cycles. A three-pronged elastic latching structure is also provided between the connector and the connector seat. The three prongs are arranged in an equilateral triangle layout, with each prong having an angle of 120° and a clamping stroke of 0.8–1.0 mm. After insertion, it automatically expands and locks. Disassembly can be achieved by pressing the clamping ring to release the latch. The structure is simple and reliable.

[0032] The pressure-relieving component (7) includes an elastic spacer (71) and a corrugated buffer pad (72):

[0033] The elastic spacer (71) is made of TPV material (Shore hardness 80A), with a rectangular cross-section, an outer diameter of 20mm, a width of 3mm, a thickness of 2mm, a compression deformation range of 0.5–1.2mm, and an initial pre-stress controlled at 10–25N, used to absorb the impact of the insert and compensate for thermal expansion.

[0034] The corrugated buffer pad (72) is an EPDM corrugated part with a thickness of 2.5mm. It is located between the rear end of the blower and the contact surface of the mounting part, allowing axial floating of 0.8–1.5mm, which effectively alleviates structural fatigue and resonance noise caused by long-term operation.

[0035] The mounting component (4) has a V-shaped guide channel (41) at its center. The guide width is 10mm ± 0.5mm, the shrinkage section length is 15mm, and the angle is 60°. This convergence structure enables automatic alignment and rapid insertion. The entire insertion process is adapted to the needs of rapid factory assembly and user self-reassembly, and has high fault tolerance and guidance.

[0036] The transparent window (8) is integrally molded from PC transparent material and forms an observation window with the front end of the housing (1). The size is 15×8mm, which is used to determine whether the connector (51) is fully inserted into the end of the connector seat (52). This structure is suitable for production line qualification inspection and user self-inspection assembly confirmation.

[0037] In summary, this reinforced structure has anti-misinsertion capability, energy absorption buffer function, connection guidance performance and assembly confirmation characteristics. It is widely applicable to the connection scenarios of blower and motor in various tower fan products, and has good mass manufacturability and long-term operational stability.

[0038] The foregoing has shown and described 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 preferred examples and are not intended to limit the 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 tower fan blower connection structure with dynamic pressure relief and anti-reverse installation functions, characterized in that: The assembly includes a housing (1), a blower (2), a drive unit (3), a mounting component (4), and a connecting component (5). The blower (2) is connected to the drive unit (3) via the connecting component (5). The mounting component (4) is disposed between the blower (2) and the drive unit (3). The connecting component (5) includes a connector (51), a connector seat (52), an anti-reverse mounting limiting structure (6), and a pressure-relieving component (7). The anti-reverse mounting limiting structure (6) includes an anti-rotation ratchet (61) disposed on the outer periphery of the connector (51) and a pawl (62) disposed on the inner wall of the connector seat (52). The ratchet (61) and the pawl (62) engage only in a single rotation direction. The pressure-relieving component (7) includes an elastic spacer (71) and a corrugated buffer pad (72). The elastic spacer (71) is sleeved on the outside of the connector (51), and the corrugated buffer pad (72) is disposed between the blower (2) and the mounting component (4).

2. The structure according to claim 1, characterized in that: The elastic spacer (71) is made of TPV or silicone material, with a compression stroke of 0.5-1.2 mm and a pre-compression stress of 10-25 N.

3. The structure according to claim 1, characterized in that: The mounting component (4) is provided with a guide channel (41) extending toward the connector seat (52), and the connector (51) slides into the connector seat (52) along the guide channel (41).

4. The structure according to claim 3, characterized in that: The guide channel (41) has a "V" shaped contraction opening structure with a guide opening width of 8-12mm, which facilitates the guide insertion and alignment.

5. The structure according to claim 1, characterized in that: The connector base (52) has a transparent window (8) on its outer side for observing the connection status. The transparent window (8) is integrally formed with the housing (1).

6. The structure according to claim 1, characterized in that: The connecting component (5) is a plug-in self-locking structure with an insertion depth of 10-15mm. After connection, it can withstand an axial tensile force of ≥30N.

7. The structure according to claim 1, characterized in that: The driving component (3) is a motor, and the connector (51) and the connector seat (52) are connected by a snap-fit ​​quick connection. The snap-fit ​​structure is a three-claw elastic locking type.

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