Headwind prevention device for air conditioning unit

Abstract

The utility model relates to the field of air conditioning units, and discloses an anti-headwind device for an air conditioning unit, which comprises a fan, an air outlet pipe is mounted at the top end of the fan, a protection component is arranged on the inner wall of the air outlet pipe and comprises a rotating shaft, and the rotating shaft penetrates through and is rotatably connected to the inner wall of the air outlet pipe. A baffle is fixedly connected to the outer wall of the rotating shaft and rotationally connected to the inner wall of the air outlet pipe, the protection assembly further comprises a fixing plate, the fixing plate is fixedly connected to the inner wall of the air outlet pipe, a sliding plate is slidably connected to the position, close to the left end of the fixing plate, of the inner wall of the air outlet pipe, and a ventilation groove is formed in the left end of the fixing plate. The left end of the fixing plate is fixedly connected with a protruding block. According to the air outlet pipe, by arranging the protection assembly, when wind in the external environment is too large, the sliding plate can be forced to drive the inserting plate to move rightwards to be separated from the interior of the clamping block, at the moment, the torsional spring can pull the rotating shaft to drive the baffle to rotate to be closed, and headwind can be prevented from entering the air outlet pipe.

Description

Technical Field

[0001] The utility model relates to the field of air-conditioning units, in particular to a headwind prevention device for air-conditioning units. Background Art

[0002] Air conditioning is a common temperature control component, which is often used to adjust the indoor temperature. The air conditioning unit combines multiple units together. Compared with a single air conditioner, the air conditioning unit has greater power. At the same time, some air conditioning units are also equipped with intelligent components, which can realize remote control and intelligent control in conjunction with network components.

[0003] When the air-conditioning unit is in use, it usually needs to rely on the air outlet duct to exhaust air. When the external environmental wind is strong, the reverse environmental wind will actively enter the exhaust duct and blow the internal fan blades, which will cause the fan blades to reverse. The reversal of the fan blades will make it difficult for the motor to drive the fan blades to start forward. Some intelligent air-conditioning units are equipped with sensors. When the reversal of the fan blades is detected, the intelligent control system will control the motor to start with a larger power to drive the fan blades to rotate forward normally. However, the drastic change in instantaneous power may cause damage to the fan blades and the motor, and the overall device has poor anti-reverse effect. Therefore, an anti-reverse wind device for air-conditioning units is proposed to solve the above problems. Utility Model Content

[0004] In order to remedy the above shortcomings, the utility model provides an anti-backwind device for an air-conditioning unit, aiming to improve the problem in the prior art that "forcing the fan to start by adjusting the motor power may cause damage to the fan blades and the motor, and the overall device has poor anti-backwind effect."

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a backwind protection device for an air-conditioning unit, comprising a fan, an air outlet duct is installed at the top of the fan, a protective component is provided on the inner wall of the air outlet duct, the protective component comprises a rotating shaft, the rotating shaft passes through and is rotatably connected to the inner wall of the air outlet duct, the outer wall of the rotating shaft is fixedly connected to a baffle, and the baffle is rotatably connected to the inner wall of the air outlet duct.

[0006] As a further description of the above technical solution:

[0007] The protection component also includes a fixing plate, which is fixedly connected to the inner wall of the air outlet pipe. A sliding plate is slidably connected to the inner wall of the air outlet pipe near the left end of the fixing plate, and a ventilation slot is arranged at the left end of the fixing plate.

[0008] As a further description of the above technical solution:

[0009] A protrusion is fixedly connected to the left end of the fixing plate, the protrusion is matched with the ventilation slot, and an air induction slot is arranged at the right end of the protrusion.

[0010] As a further description of the above technical solution:

[0011] The right end of the slide plate is provided with a groove, and the cross section of the groove is an equilateral triangle.

[0012] As a further description of the above technical solution:

[0013] The front end of the baffle is fixedly connected with a clamping block, the clamping block is arranged in an L shape, the right end of the clamping block is arranged with an inclined surface, the left end of the slide plate is fixedly connected with a plugging plate, and the clamping block and the plugging plate are adapted to each other.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the rotating shaft is fixedly connected with a torsion spring, and the rear end of the torsion spring is fixedly connected to the inner wall of the air outlet pipe.

[0016] As a further description of the above technical solution:

[0017] The left end of the slide plate is provided with a diversion groove.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, by setting a protective component, when the external environment is too windy, the slide plate will be forced to drive the plug plate to move to the right and out of the inside of the block. At this time, the torsion spring will pull the shaft to drive the baffle to rotate and close, so as to prevent the adverse wind from entering the inside of the air outlet duct, and the overall device has a better anti-adverse effect.

[0020] 2. In the utility model, by providing a plug plate and a card block, when the device is operating normally, the plug plate will be stuck inside the card block to prevent the baffle from closing, thereby preventing the baffle from closing accidentally when the device is operating normally, and the overall device has better stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the utility model;

[0022] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the air outlet duct in the utility model;

[0023] Figure 3 It is a schematic side view of the three-dimensional structure section of the air outlet duct in the utility model;

[0024] Figure 4 For the utility model Figure 3 A magnified schematic diagram of the three-dimensional structure of part A;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure disassembly of the protection component in the utility model;

[0026] Figure 6 It is a top view schematic diagram of the three-dimensional structure of the clamping block in the utility model.

[0027] Legend:

[0028] 1. Fan; 2. Air outlet duct; 3. Protective assembly; 31. Fixed plate; 32. Bump; 33. Slide plate; 34. Ventilation slot; 35. Rotating shaft; 36. Baffle; 37. Block; 38. Insert plate; 39. Torsion spring; 310. Air induction slot; 311. Groove; 312. Diverter slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1 , Figure 3 , Figure 4 The utility model provides an embodiment: an anti-backwind device for an air-conditioning unit, comprising a fan 1 for driving air flow, a fan and a motor are installed inside the fan 1, and the fan can be driven to rotate by starting the motor, and an air outlet pipe 2 for assisting the exhaust of the fan 1 is installed on the top of the fan 1. When the device is operating normally, the fan 1 will drive the air to enter the device from the left end of the fan 1, and then the air will pass through the air outlet pipe 2 and be discharged from its left end. A protective component 3 for protecting the device from the influence of backwind is provided on the inner wall of the air outlet pipe 2, and the protective component 3 includes a rotating shaft 35 for supporting the rotation of a baffle 36, the rotating shaft 35 passes through and is rotatably connected to the inner wall of the air outlet pipe 2, and a baffle 36 for blocking the backwind is fixedly connected to the outer wall of the rotating shaft 35, and the baffle 36 is rotatably connected to the inner wall of the air outlet pipe 2, and the backwind prevention effect can be achieved by using the baffle 36 to block the opening at the left end of the air outlet pipe 2.

[0031] Reference Figure 2 , Figure 3 , Figure 5The protective component 3 also includes a fixing plate 31 used in conjunction with the slide plate 33. The fixing plate 31 is fixedly connected to the inner wall of the air outlet pipe 2. The inner wall of the air outlet pipe 2 is slidably connected to a slide plate 33 for fixing a baffle 36 near the left end of the fixing plate 31. The left end of the fixing plate 31 is provided with a ventilation slot 34 for allowing air to circulate through the fixing plate 31. The left end of the fixing plate 31 is fixedly connected with a protrusion 32 for blocking the ventilation slot 34. The protrusion 32 and the ventilation slot 34 are adapted. When the protrusion 32 is stuck in the interior of the ventilation slot 34, the headwind will not be able to pass through the ventilation slot 34, and the airflow discharged by the fan 1 can push the slide plate 33 is moved to the left and separated from the protrusion 32. The right end of the protrusion 32 is provided with an air induction groove 310 for guiding the air flow to blow the slide plate 33. When the air flow blows from right to left, it will be affected by the air induction groove 310 and pass through the fixed plate 31 from the front and rear ends of the air induction groove 310, thereby reducing the influence of the fixed plate 31 on the exhaust of the fan 1. The right end of the slide plate 33 is provided with a groove 311 for facilitating the air flow to push the slide plate 33. The cross-section of the groove 311 is an equilateral triangle. When the air flow blows the slide plate 33 from right to left, the groove 311 can have the effect of gathering air, thereby increasing the thrust of the air flow on the slide plate 33.

[0032] Reference Figure 3 , Figure 4 , Figure 6 The front end of the baffle plate 36 is fixedly connected with a block 37 for fixing the baffle plate 36, and the block 37 is set to be L-shaped. The right end of the block 37 is provided with an inclined surface for facilitating the insertion of the plug plate 38 into the block 37. The left end of the slide plate 33 is fixedly connected with a plug plate 38 for fixing the block 37. The block 37 and the plug plate 38 are adapted to each other. When the plug plate 38 is inserted into the block 37, the baffle plate 36 will be fixed and cannot be closed. The outer wall of the rotating shaft 35 is fixedly connected with a torsion spring 39 for driving the baffle plate 36 to rotate inward and close. The rear end of the torsion spring 39 is fixedly connected to the inner wall of the air outlet pipe 2, and the torsion spring 39 will always pull the rotating shaft 35 inward. The left end of the slide plate 33 is provided with a shunt groove 312 for reducing the thrust of the headwind on the slide plate 33.

[0033] Working principle: When the whole device is in the closed state, after the headwind blows into the left end of the air outlet pipe 2, since the fan 1 is in the closed state at this time, the headwind can easily push the slide plate 33 to move to the right, and the slide plate 33 will move to the right and get stuck in the left end of the protrusion 32. At this time, the ventilation slot 34 will be blocked, and the headwind will not be able to pass through the air outlet pipe 2 through the ventilation slot 34. At the same time, the slide plate 33 will drive the plug plate 38 to move to the right and disengage from the right end of the block 37, and then the torsion spring 39 will drive the rotating shaft 35 to rotate, and the rotation of the rotating shaft 35 will drive the baffle 36 to rotate and close, so that the headwind can be isolated and the impact of the headwind on the device can be reduced.

[0034] When the fan 1 is started, the fan 1 will drive the air into the interior of the fan 1 from its left end, and the fan 1 will drive the airflow into the interior of the air outlet duct 2 from the bottom end of the air outlet duct 2. This part of the positive airflow will push the slide plate 33 to move to the left and separate from the protrusion 32. Then the positive airflow will push the baffle 36 to rotate and open. As the slide plate 33 continues to move to the left, the slide plate 33 will drive the plug plate 38 to re-enter the interior of the block 37. At this time, the baffle 36 will be re-fixed. Since the fan 1 does not need to fight against the headwind when it is started, it will not impose a large burden on the fan blades.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A headwind prevention device for an air conditioning unit, comprising a fan (1), characterized in that: An air outlet pipe (2) is installed at the top end of the fan (1); a protective component (3) is provided on the inner wall of the air outlet pipe (2); the protective component (3) comprises a rotating shaft (35); the rotating shaft (35) penetrates through and is rotatably connected to the inner wall of the air outlet pipe (2); a baffle (36) is fixedly connected to the outer wall of the rotating shaft (35); and the baffle (36) is rotatably connected to the inner wall of the air outlet pipe (2).

2. The anti-wind device for an air conditioning unit according to claim 1, characterized in that: The protection assembly (3) further comprises a fixing plate (31), wherein the fixing plate (31) is fixedly connected to the inner wall of the air outlet pipe (2), a sliding plate (33) is slidably connected to the inner wall of the air outlet pipe (2) near the left end of the fixing plate (31), and a ventilation slot (34) is provided at the left end of the fixing plate (31).

3. The headwind prevention device for an air conditioning unit according to claim 2, characterized in that: A protrusion (32) is fixedly connected to the left end of the fixing plate (31), the protrusion (32) is matched with the ventilation slot (34), and an air induction slot (310) is provided at the right end of the protrusion (32).

4. The headwind prevention device for an air conditioning unit according to claim 2, characterized in that: A groove (311) is provided at the right end of the slide plate (33), and the cross section of the groove (311) is an equilateral triangle.

5. The headwind prevention device for an air conditioning unit according to claim 2, characterized in that: A clamping block (37) is fixedly connected to the front end of the baffle (36), the clamping block (37) is arranged in an L shape, a slope is arranged at the right end of the clamping block (37), and a plugging plate (38) is fixedly connected to the left end of the slide plate (33), the clamping block (37) and the plugging plate (38) are adapted to each other.

6. The headwind prevention device for an air conditioning unit according to claim 1, characterized in that: A torsion spring (39) is fixedly connected to the outer wall of the rotating shaft (35), and the rear end of the torsion spring (39) is fixedly connected to the inner wall of the air outlet pipe (2).

7. The headwind prevention device for an air conditioning unit according to claim 2, characterized in that: A diversion groove (312) is provided at the left end of the slide plate (33).

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