A ventilation fan with a baffle structure

Abstract

This utility model discloses a ventilation fan with a wind deflector structure, including a panel and a body. A support frame is provided inside the body, and a wind deflector is provided at the end of the body away from the panel. A counterweight is provided on the wind deflector. The wind deflector is composed of a baffle and an arc-shaped plate. A limiting plate extends from the bottom of the arc-shaped plate towards the panel and the end of the limiting plate is inclined away from the arc-shaped plate. A vertical plate is provided on the body, and a limiting groove is formed between the vertical plate and the inner wall of the body. The limiting groove and the limiting plate are positioned opposite each other. The arc-shaped plate has a mounting cavity for installing the counterweight. A fixing plate is provided in the mounting cavity, and a fixing column is provided inside the mounting cavity. The end of the counterweight has a groove that matches the fixing column. Both the support frame and the inner wall of the body have wire grooves for installing wiring. Protective shells and sliding plates are respectively provided outside the two wire grooves. By optimizing the wind deflector structure and counterweight layout, the wind deflector can reliably and automatically close in the windless state without the need for a complex external balancing mechanism.

Description

Technical Field

[0001] This utility model belongs to the field of ventilation fan technology, and in particular relates to a ventilation fan with a wind deflector structure. Background Technology

[0002] A ventilation fan is an air conditioning appliance that uses an electric motor to drive the fan blades to rotate and generate airflow, thereby exchanging indoor and outdoor air. It is also known as a ventilation fan. Ventilation fans are mainly installed in special indoor spaces with strong odors and high humidity, such as toilets, bathrooms, or kitchens. They remove stale air and regulate temperature, humidity, and perceived comfort. In existing technologies, to ensure the airflow can open the baffle, its lower surface area is usually increased. However, this causes the baffle's center of gravity to shift and the gravitational torque to become unbalanced, making it difficult for the baffle to close reliably in the absence of wind, often resulting in incomplete closure. Therefore, a simple, reliable, and non-complex external balancing baffle solution is needed. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art and to provide a ventilation fan with a wind deflector structure. By optimizing the wind deflector structure and counterweight layout, the wind deflector can be reliably and automatically closed in the absence of wind without the need for a complex external balancing mechanism.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A ventilation fan with a baffle structure includes a panel and a body. The body is equipped with a support frame, and a baffle is provided at the end of the body away from the panel. A counterweight is provided on the baffle to realize the automatic closing of the baffle.

[0006] Furthermore, the wind deflector is composed of a baffle and an arc-shaped plate. A limiting plate extends from the bottom of the arc-shaped plate toward the panel, and the end of the limiting plate is inclined away from the arc-shaped plate to enhance the overall structural strength of the wind deflector.

[0007] Furthermore, a vertical plate is provided on the body, and a limiting groove is formed between the vertical plate and the inner wall of the body. The limiting groove and the limiting plate are positioned opposite each other to limit the position of the wind deflector.

[0008] Furthermore, the arc-shaped plate is provided with a mounting cavity for installing the counterweight, and a fixing plate is provided inside the mounting cavity for fixing the counterweight.

[0009] Furthermore, the mounting cavity is equipped with a fixing post, and the end of the counterweight is provided with a groove that matches the fixing post to prevent the counterweight from shaking.

[0010] Furthermore, both the support frame and the inner wall of the machine body are provided with cable trays for installing wiring. Protective shells and sliding plates are provided outside the two cable trays to protect the internal wiring.

[0011] Furthermore, a first locking block is provided on the wire groove located on the support frame, and a second locking block is provided on the protective shell to engage with the first locking block, thereby enabling the installation of the protective shell.

[0012] Furthermore, a limiting strip is provided on the groove on the body, and a sliding groove matching the limiting strip is provided on the slide plate to realize the sliding installation of the slide plate.

[0013] Furthermore, protrusions are provided on the friction surfaces of the slide plate and the wire groove to reduce friction between the slide plate and the wire groove.

[0014] Furthermore, the support frame is equipped with reinforcing ribs.

[0015] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0016] 1. In this utility model, by cleverly embedding a counterweight block at the top of the arc plate, the wind deflector can be opened smoothly under the action of airflow. The counterweight block also effectively balances the gravitational torque of the wind deflector itself, ensuring that the wind deflector can close quickly and tightly automatically by gravity when the ventilation fan stops working.

[0017] 2. In this utility model, the bottom of the arc-shaped plate extends into a limiting plate, which, together with the limiting groove on the inner wall of the machine, not only enhances the overall structural strength and deformation resistance of the baffle, enabling it to withstand greater airflow impact, but also precisely limits the final position of the baffle when closed, avoiding the impact and noise caused by excessive rotation, and improving the durability of the product. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of a ventilation fan with a wind baffle structure according to the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the body in this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the body in this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the wind deflector in this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the wind deflector in this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the body in this utility model;

[0025] Figure 7This is a three-dimensional structural diagram of the body in this utility model;

[0026] Figure 8 This is a three-dimensional structural diagram of the protective shell in this utility model;

[0027] Figure 9 This is a three-dimensional structural diagram of the skateboard in this utility model;

[0028] Figure 10 for Figure 7 A magnified schematic diagram of the local structure at point A in the middle.

[0029] In the diagram: 1-Panel; 2-Body; 3-Support frame; 4-Wind deflector; 41-Baffle; 42-Arc plate; 5-Counterweight; 6-Limiting plate; 7-Vertical plate; 8-Limiting groove; 9-Mounting cavity; 10-Fixing plate; 11-Fixing column; 12-Groove; 13-Wire groove; 14-Protective shell; 15-Slide plate; 16-First locking block; 17-Second locking block; 18-Limiting strip; 19-Sliding groove; 20-Protrusion; 21-Reinforcing rib. Detailed Implementation

[0030] like Figures 1 to 10 As shown, this utility model discloses a ventilation fan with a baffle plate 4 structure, including a panel 1, a body 2 connected to the panel 1, and a support frame 3 set inside the body 2. The support frame 3 is equipped with a motor and fan blades driven by the motor to rotate, which together constitute the power and airflow generation part of the ventilation fan. The specific structure is a technical solution well known to those skilled in the art and will not be described in detail here.

[0031] A wind deflector 4 is provided inside the end of the body 2 away from the panel 1. The wind deflector 4 is composed of a flat baffle 41 and an arc-shaped plate 42. The baffle 41 is connected to the body 2 through a rotating mechanism. Specifically, hinge seats are provided on both sides of the top of the arc-shaped plate 42, and a fixing pin is provided at the corresponding position on the body 2. The fixing pin includes a fixing rod and a connecting rod with gradually decreasing diameter. The connecting rod moves through the hinge seat to realize the rotational installation of the wind deflector 4. The fixing rod is placed in the groove 12 formed by the baffle 41 and the hinge seat to limit the position of the wind deflector 4 and prevent the wind deflector 4 from shaking.

[0032] The top of the arc plate 42 protrudes on the side away from the panel 1 to form a mounting cavity 9. A counterweight 5 is placed in the mounting cavity 9. When the motor drives the fan blades to rotate, air enters from the end of the panel 1 and exits from the end of the body 2. The flowing air pushes the wind deflector 4 to rotate, so as to realize the air flow. When the ventilation fan stops working, the wind deflector 4 automatically closes when there is no wind force due to the setting of the counterweight 5.

[0033] The mounting cavity 9 is symmetrically arranged with fixed columns 11. The counterweight 5 has matching grooves 12 at both ends. The inner wall of the mounting cavity 9 is stepped. The fixed plate 10 and the counterweight 5 are installed layer by layer according to the stepped structure. The shape of the fixed plate 10 is consistent with the inner wall of the arc plate 42, which ensures the assembly is stable and improves the aesthetics of the wind deflector 4.

[0034] The central area of ​​the arc plate 42 protrudes outward, and the bottom extends into a limiting plate 6 towards the panel 1. The width of the limiting plate 6 gradually narrows from the middle to both ends, and finally smoothly transitions and connects with the baffle 41. At the same time, the end of the limiting plate 6 also tilts and extends away from the arc plate 42 to improve the airflow impact capability, so that the baffle 4 can rotate smoothly when the ventilation fan is working.

[0035] The inner wall of the body 2 is provided with a vertical plate 7, which extends to the end and forms a limiting groove 8 with the wall of the body 2. The limiting plate 6 is placed in the limiting groove 8 to limit the closed position of the wind deflector 4 and prevent the wind deflector 4 from rotating excessively and causing damage to the wind deflector.

[0036] The support frame consists of three parts: a mounting frame and a support rod. The mounting frame is equipped with wire holes and reinforcing ribs 21 for wire threading, which are used to install the wiring and improve the strength of the mounting frame.

[0037] The support rod and the inner wall of the body 2 are provided with wire grooves 13 to accommodate the wires, and the external protective shell 14 and slide plate 15 are added to protect the internal wires.

[0038] The support rod has slots on both sides, with a first locking block 16 inside the slots; a second locking block 17 is provided on the corresponding position on the protective shell 14, and the protective shell 14 and the support rod are fixed by locking the first locking block 16 and the second locking block 17.

[0039] Meanwhile, a third locking block is symmetrically set on the outer wall of the mounting frame, and a fourth locking block is set at the end of the protective shell 14. The end area of ​​the support rod is inclined downward, forming a through groove together with the mounting frame. After the protective shell 14 is installed at an incline, it is positioned by locking the third locking block and the fourth locking block.

[0040] The protective shell 14 has a cavity. After installation, the cavity and the wire trough 13 form a sealed space for wiring installation, which protects the internal wiring.

[0041] The body 2 is connected to the wire groove 13 on the support rod, and the protected end is placed in the wire groove 13 on the body 2.

[0042] The slide plate 15 has a cavity. After the protective shell 14 is installed, the cavity and the wire groove 13 form a closed space for wiring installation.

[0043] A limiting strip 18 is installed at the opening of the wire groove 13, and sliding grooves 19 are opened on both sides of the slide plate 15 to cooperate with it. The top of the slide plate 15 extends to form a limiting protrusion, and the side is provided with a protrusion 20 to abut against the inner wall of the wire groove 13, which together ensures the stable sliding and accurate positioning of the slide plate 15 in the wire groove 13. The setting of the protrusion 20 improves the stability of the installation of the slide plate 15, and at the same time reduces the friction between the slide plate 15 and the inner wall of the wire groove 13.

[0044] After the skateboard 15 is installed, the skateboard 15 is fixed and limited by the connection between the body 2 and the panel 1.

[0045] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A ventilation fan with a baffle structure, comprising a panel and a body, wherein a support frame is provided inside the body. Its features are: The machine body is provided with a wind deflector at the end away from the panel, and a counterweight is provided on the wind deflector to realize the automatic closing of the wind deflector.

2. A ventilation fan with a baffle structure according to claim 1, characterized in that: The wind deflector is composed of a baffle and an arc-shaped plate. A limiting plate extends from the bottom of the arc-shaped plate toward one side of the panel. The end of the limiting plate is inclined away from the arc-shaped plate to enhance the overall structural strength of the wind deflector.

3. A ventilation fan with a baffle structure according to claim 2, characterized in that: The body is provided with a vertical plate, and a limiting groove is formed between the vertical plate and the inner wall of the body. The limiting groove is positioned opposite to the limiting plate to limit the position of the wind deflector.

4. A ventilation fan with a baffle structure according to claim 2, characterized in that: The arc-shaped plate has a mounting cavity for mounting the counterweight, and a fixing plate is provided in the mounting cavity for fixing the counterweight.

5. A ventilation fan with a baffle structure according to claim 4, characterized in that: The mounting cavity is provided with a fixing post, and the end of the counterweight is provided with a groove that matches the fixing post to prevent the counterweight from shaking.

6. A ventilation fan with a baffle structure according to claim 1, characterized in that: Both the support frame and the inner wall of the machine body are provided with wire grooves for installing wiring. Protective shells and sliding plates are respectively provided outside the two wire grooves to protect the internal wiring.

7. A ventilation fan with a baffle structure according to claim 6, characterized in that: A first locking block is provided on the wire groove located on the support frame, and a second locking block is provided on the protective shell to engage with the first locking block, thereby realizing the installation of the protective shell.

8. A ventilation fan with a baffle structure according to claim 6, characterized in that: A limiting strip is provided on the groove on the body, and a sliding groove matching the limiting strip is provided on the slide plate to realize the sliding installation of the slide plate.

9. A ventilation fan with a baffle structure according to claim 8, characterized in that: The friction surface between the sliding plate and the groove is provided with protrusions.

10. A ventilation fan with a baffle structure according to claim 1, characterized in that: The support frame is equipped with reinforcing ribs.

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