A bar-shaped flow diffuser

Abstract

The utility model discloses a strip -shaped air diffuser relates to central air conditioning field, including the frame, the one side of frame is provided with the air port, and the inside rotation of frame at least installs one impeller subassembly, and the impeller subassembly includes two ratchets and two blades, and two blades symmetrical arrangement between two ratchets, and the rotation impeller subassembly makes the blade and air port form parallel or interlaced state to form the straight air supply of air current, the oblique air supply or the attached air supply, and when the attached air supply, the height n of blade bottom protruding from the air port is at least 2mm. The utility model discloses the impeller subassembly of rotation installation can realize the air direction adjustment of this air diffuser, satisfies the use of straight air supply, the oblique air supply and the attached air supply, and when the attached air supply, the blade bottom protrudes from the air port, thereby effectively prevents the air current from being blocked by the frame at the air port, not only reduces the air pressure loss, and avoids causing the situation of turbulence, simultaneously makes the air current even discharge to improve the effect of air supply.

Description

Technical Field

[0001] This utility model relates to the field of central air conditioning, and in particular to a strip diffuser. Background Technology

[0002] An air conditioning diffuser is a terminal device in an air conditioning system used to evenly distribute airflow into an indoor space. It is installed in air ducts or on the ceiling. Its shapes are mainly square, round, and strip-shaped. Its core function is to adjust the airflow according to needs through a specific structure: direct airflow (generally used for ceiling-mounted airflow in winter to ensure that hot air reaches the activity area), angled airflow (side-mounted airflow), and attached airflow (generally used for ceiling-mounted airflow in summer to avoid direct airflow onto people); ensuring that the air conditioner's cool / hot air evenly covers the room, improving comfort and reducing energy consumption.

[0003] In existing linear diffusers, the blades are generally all placed inside the outer frame. This means that when the diffuser is attached to the air supply, the edge of the outer frame will block part of the airflow, causing turbulence in the airflow. This not only increases the pressure loss but also causes uneven airflow, thereby reducing the air supply effect. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a strip diffuser to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a strip diffuser, including an outer frame, with an air outlet on one side of the outer frame, and at least one impeller assembly rotatably installed inside the outer frame, wherein the impeller assembly includes two deflectors and two blades, the two blades being symmetrically arranged between the two deflectors. By rotating the impeller assembly, the blades are made to form a parallel or staggered state with the air outlet, so as to form direct airflow, oblique airflow, or attached airflow. When attached airflow is provided, the height n of the bottom of the blade protruding from the air outlet is at least 2mm.

[0006] Preferably, the outer frame has two impeller assemblies inside, and the two impeller assemblies are separated by a middle section.

[0007] Preferably, the outer frame has three impeller assemblies inside, and each pair of adjacent impeller assemblies is separated by a middle section.

[0008] Preferably, the outer frame is further provided with a sealing strip for attaching the blades for sealing.

[0009] Preferably, the dial wheel has a circular structure, and arc-shaped notches for assembling blades are provided on both sides of the dial wheel. The two ends of the arc-shaped notches are provided with slots. The side of the dial wheel is also provided with threaded holes located inside the notches. The two ends of the blades are provided with retaining edges that are adapted to the retaining slots.

[0010] Preferably, the impeller assembly further includes fixing screws, and the blades are connected to the slot of the dial wheel by a snap-fit, and are reinforced by tightening the fixing screws.

[0011] Preferably, a V-shaped groove is also formed on the outer surface of the blade.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention allows for wind direction adjustment of the diffuser by rotating the impeller assembly, satisfying the needs of direct air supply, oblique air supply, and attached air supply. When attached air supply is used, the bottom of the blades protrudes from the air outlet, effectively preventing the airflow from being blocked by the outer frame at the air outlet. This not only reduces air pressure loss but also avoids turbulence, while ensuring that the airflow is discharged evenly, thereby improving the air supply effect.

[0014] When the air supply is attached, the cold airflow is horizontally moved a certain distance along the bottom surface of the outer frame or the top surface of the wall before slowly falling down, which effectively reduces the stimulation of the cold airflow on the human body and improves the comfort of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the strip diffuser in the direct air supply state in Example 1.

[0016] Figure 2 This is a schematic diagram of the strip diffuser in the inclined air supply state in Example 1.

[0017] Figure 3 This is a schematic diagram of the strip diffuser in the air supply state in Example 1.

[0018] Figure 4 This is a front view schematic diagram of the impeller assembly in Example 1.

[0019] Figure 5 This is a side view of the impeller assembly in Example 1.

[0020] Figure 6 This is a schematic diagram of the dial in Example 1.

[0021] Figure 7 This is a schematic diagram of the blade in Example 1.

[0022] Figure 8 This is a schematic diagram of wind direction in Example 1.

[0023] Figure 9 This is a schematic diagram of wind direction in Example 2.

[0024] Figure 10 This is a schematic diagram of wind direction in Example 3.

[0025] The attached diagram is labeled as follows: 1. Outer frame; 2. Impeller assembly; 21. Dial wheel; 211. Slot; 212. Threaded hole; 22. Blade; 221. Edge; 222. V-groove; 23. Fixing screw; 3. Sealing strip; 4. Intermediate section. Detailed Implementation

[0026] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0027] Example 1

[0028] A strip diffuser, such as Figure 1-8 As shown, it includes an outer frame 1, with an air vent on one side of the outer frame 1. An impeller assembly 2 is rotatably mounted on the outer frame 1. Specifically, the impeller assembly 2 includes two deflectors 21 and two blades 22, with the two blades 22 symmetrically arranged between the two deflectors 21.

[0029] When supplying air directly, rotate impeller assembly 2 to make blades 22 parallel to the air outlet, such as... Figure 1 As shown, the airflow is directed vertically towards the air outlet, and direct airflow is generally suitable for delivering hot air.

[0030] The oblique airflow is achieved by rotating the impeller assembly 2 so that the blades 22 and the air outlet are staggered at an angle of 0-45°. This oblique airflow is generally used for side installation, such as installing the diffuser on the side of a wall or ceiling.

[0031] It can be explained here that the angle of the airflow obtained from different angles is different. Taking top air supply as an example, the rotation angle of the blade assembly is from 0° to 45°. By rotating the impeller assembly, you can obtain the airflow from vertical to oblique airflow at different angles to horizontal airflow (attached air supply).

[0032] When attaching the air supply, rotate the impeller assembly 2 so that the blades 22 and the air outlet are staggered at an angle of 45°, so that the airflow is attached to the air supply. Attached air supply is generally suitable for supplying cold air. The discharged cold air flows horizontally along the bottom surface of the outer frame or the top surface of the wall for a certain distance before slowly falling down, which effectively relieves the stimulation of the cold air to the human body.

[0033] Furthermore, when the air is attached, the bottom of the blade 22 protrudes from the air outlet by a height n of 2mm, which effectively prevents the airflow from being blocked by the outer frame 1 at the air outlet, avoiding turbulence. This not only reduces air pressure loss but also ensures that the airflow is discharged evenly, thereby improving the air supply effect.

[0034] In this embodiment, a sealing strip 3 is also provided inside the outer frame 1 for attaching the blade 22 for sealing, improving the sealing between the blade 22 and the inner wall of the outer frame 1, preventing airflow from escaping from the outside of the blade 22 to the air vent, causing the airflow to be blocked by the outer frame 1 at the air vent and unable to be blown out, resulting in turbulence.

[0035] In this embodiment, the dial wheel 21 has a circular structure. Arc-shaped notches for assembling blades 22 are provided on both sides of the dial wheel 21. Each end of the arc-shaped notch has a slot 211. A threaded hole 212 is also provided on the side of the dial wheel 21 within the notch. Both ends of the blade 22 have retaining edges 221 that fit into the slots 211. The blade 22 is engaged with the retaining edges 221 at both ends of the dial wheel 21 through the retaining edges 221, so that the blade 22 fits perfectly into the arc-shaped notch. This creates a complete circular structure on the sides of the dial wheel 21 and the blade 22. The engagement method is convenient and easy to assemble and position.

[0036] Furthermore, the impeller assembly 2 also includes a fixing screw 23. The blade 22 is connected to the slot 211 of the dial wheel 21 by the retaining edge 221 and is reinforced by screwing the fixing screw 23. It can be noted that the dial wheel 21 has a threaded hole for threaded assembly of the fixing screw 23. The reinforcement by the fixing screw further improves the stability of the assembly between the blade 22 and the dial wheel 21.

[0037] It can be noted that the threaded holes can be in one, two, or three rows or even more, depending on the size of the impeller assembly 2. The more screws 23 are connected, the more stable the installation between the blade 22 and the dial 21 will be.

[0038] Furthermore, a V-groove 222 is provided on the outer surface of the blade 22, and the V-groove 222 corresponds to the threaded hole, so that the position of each row of threaded holes can be easily found on the blade 22.

[0039] Example 2

[0040] A strip diffuser, such as Figure 9 As shown, the outer frame 1 has two impeller assemblies 2 inside, and the two impeller assemblies 2 are separated by a middle section 4.

[0041] Specifically, each impeller assembly 2 includes two dials 21 and two blades 22. The two blades 22 are symmetrically arranged between the two dials 21. Rotating the impeller assembly 2 makes the blades 22 parallel or staggered with the air outlet to form direct airflow or attached airflow. When attached airflow is used, the bottom of the blades 22 protrudes from the air outlet at a height n of 3mm.

[0042] When supplying air directly, rotate impeller assembly 2 to make blades 22 parallel to the air outlet, such as... Figure 1As shown, the airflow is directed vertically towards the air outlet, and direct airflow is generally suitable for delivering hot air.

[0043] The oblique airflow is achieved by rotating the impeller assembly 2 so that the blades 22 and the air outlet are staggered at an angle of 0-45°. This oblique airflow is generally used for side installation, such as installing the diffuser on the side of a wall or ceiling.

[0044] It can be explained here that the angle of the airflow obtained from different angles is different. Taking top air supply as an example, the rotation angle of the blade assembly is from 0° to 45°. By rotating the impeller assembly, you can obtain the airflow from vertical to oblique airflow at different angles to horizontal airflow (attached air supply).

[0045] When attaching the air supply, rotate the impeller assembly 2 so that the blades 22 and the air outlet are staggered at an angle of 45°, so that the airflow is attached to the air supply. Attached air supply is generally suitable for supplying cold air. The discharged cold air flows horizontally along the bottom surface of the outer frame or the top surface of the wall for a certain distance before slowly falling down, which effectively relieves the stimulation of the cold air to the human body.

[0046] Furthermore, when the air is attached, the bottom of the blade 22 protrudes from the air outlet by a height n of 2mm, which effectively prevents the airflow from being blocked by the outer frame 1 at the air outlet, avoiding turbulence. This not only reduces air pressure loss but also ensures that the airflow is discharged evenly, thereby improving the air supply effect.

[0047] It can be explained here that the blades of the two impeller assemblies can rotate in the same direction (towards one direction). Figure 8 For example, the direction is either left or right) with the attached air supply, and it can also rotate in opposite directions to achieve air supply in both directions (using...). Figure 8 For example, air is supplied simultaneously in two directions (left and right).

[0048] Example 3

[0049] A strip diffuser, such as Figure 10 As shown, the outer frame 1 has three impeller assemblies 2 inside, and each pair of adjacent impeller assemblies 2 is separated by a middle section 4.

[0050] Specifically, each impeller assembly 2 includes two dials 21 and two blades 22. The two blades 22 are symmetrically arranged between the two dials 21. Rotating the impeller assembly 2 makes the blades 22 parallel or staggered with the air outlet to form direct airflow or attached airflow. When attached airflow is used, the bottom of the blades 22 protrudes from the air outlet at a height n of 4mm.

[0051] When supplying air directly, rotate impeller assembly 2 to make blades 22 parallel to the air outlet, such as... Figure 1 As shown, the airflow is directed vertically towards the air outlet, and direct airflow is generally suitable for delivering hot air.

[0052] The oblique airflow is achieved by rotating the impeller assembly 2 so that the blades 22 and the air outlet are staggered at an angle of 0-45°. This oblique airflow is generally used for side installation, such as installing the diffuser on the side of a wall or ceiling.

[0053] It can be explained here that the angle of the airflow obtained from different angles is different. Taking top air supply as an example, the rotation angle of the blade assembly is from 0° to 45°. By rotating the impeller assembly, you can obtain the airflow from vertical to oblique airflow at different angles to horizontal airflow (attached air supply).

[0054] When attaching the air supply, rotate the impeller assembly 2 so that the blades 22 and the air outlet are staggered at an angle of 45°, so that the airflow is attached to the air supply. Attached air supply is generally suitable for supplying cold air. The discharged cold air flows horizontally along the bottom surface of the outer frame or the top surface of the wall for a certain distance before slowly falling down, which effectively relieves the stimulation of the cold air to the human body.

[0055] Furthermore, when the air is attached, the bottom of the blade 22 protrudes from the air outlet by a height n of 2mm, which effectively prevents the airflow from being blocked by the outer frame 1 at the air outlet, avoiding turbulence. This not only reduces air pressure loss but also ensures that the airflow is discharged evenly, thereby improving the air supply effect.

[0056] It can be explained here that the blades of the three impeller assemblies can rotate in the same direction, towards one direction (within a certain range). Figure 9 For example, the air supply can be attached to the wall (either to the left or right) or rotated individually. For instance, one can rotate to the left while the other two supply air in both directions simultaneously.

[0057] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0058] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A strip diffuser, comprising an outer frame (1), wherein an air vent is provided on one side of the outer frame (1), characterized in that: At least one impeller assembly (2) is rotatably installed inside the outer frame (1). The impeller assembly (2) includes two dials (21) and two blades (22). The two blades (22) are symmetrically arranged between the two dials (21). Rotating the impeller assembly (2) makes the blades (22) parallel or staggered with the air outlet to form direct airflow, oblique airflow or attached airflow. When attached airflow is used, the bottom of the blade (22) protrudes from the air outlet at a height n of at least 2 mm.

2. A strip diffuser according to claim 1, characterized in that: The outer frame (1) is provided with two impeller assemblies (2) inside, and the two impeller assemblies (2) are separated by a middle section (4).

3. A strip diffuser according to claim 1, characterized in that: The outer frame (1) is provided with three impeller assemblies (2), and each two adjacent impeller assemblies (2) are separated by a middle section (4).

4. A strip diffuser according to any one of claims 1-3, characterized in that: The outer frame (1) is also provided with a sealing strip (3) for attaching the blade (22) for sealing.

5. A strip diffuser according to claim 1, characterized in that: The dial (21) has a circular structure. Both sides of the dial (21) are provided with arc-shaped notches for assembling blades (22). Both ends of the arc-shaped notches are provided with slots (211). The side of the dial (21) is also provided with threaded holes (212) inside the notches. Both ends of the blades (22) are provided with locking edges (221) that are adapted to the slots (211).

6. A strip diffuser according to claim 5, characterized in that: The impeller assembly (2) also includes a fixing screw (23), and the blade (22) is connected to the slot (211) of the dial wheel (21) by a retaining edge (221) and is tightened by the fixing screw (23).

7. A strip diffuser according to claim 6, characterized in that: A V-shaped groove (222) is also provided on the outer surface of the blade (22).

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