Energy-saving structure for EC fan of central air conditioner

Abstract

The utility model discloses a central air conditioner EC fan energy-saving structure which comprises an EC fan body, an air inlet is formed in the top of the EC fan body, and a dustproof net is detachably installed at the top of the air inlet in a clamped mode. The dust collection assembly comprises a protective cover body, a dust removal fan is installed on the outer wall of the protective cover body, and a dust collection bag is installed on the inner wall of the side, away from the dust removal fan, of the protective cover body in an inserted mode; the dust removal assembly comprises a sliding cleaning seat, the inner wall of the sliding cleaning seat is rotationally connected with a cleaning brush roller, a three-stage dust prevention system is formed through primary filtering of a dust screen, active dust brushing of the cleaning brush roller and negative pressure adsorption of a dust removal fan, dust impurities enter the fan, and the dust removal efficiency is improved. And air volume attenuation and energy consumption increase caused by dust accumulation of the impeller are avoided.

Description

Technical Field

[0001] This utility model relates to the field of central air conditioning technology, specifically an energy-saving structure for a central air conditioning EC fan. Background Technology

[0002] In central air conditioning systems, the EC fan, as a core power component, directly affects overall energy consumption and service life due to its operating efficiency and reliability. Insufficient dust protection and high maintenance costs are significant drawbacks: traditional EC fan inlets often use a single fixed dust filter, requiring manual shutdown and removal for cleaning. Existing traditional protective covers are enclosed designs, which, while blocking larger debris, reduce airflow efficiency, increase the power consumption of the central air conditioning EC fan, and hinder energy-saving efforts. Utility Model Content

[0003] The purpose of this utility model is to provide an energy-saving structure for the EC fan of a central air conditioning system to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An energy-saving structure for a central air conditioning EC fan includes:

[0006] The EC fan body has an air inlet at the top, and a detachable dustproof net is snapped onto the top of the air inlet.

[0007] A dust collection assembly includes a protective cover, on the outer wall of which a dust removal fan is installed, and a dust collection bag is inserted into the inner wall of the protective cover on the side away from the dust removal fan.

[0008] The dust removal assembly includes a sliding cleaning seat, the inner wall of which is rotatably connected to a cleaning brush roller.

[0009] In a preferred embodiment of this utility model, an air outlet is provided at the front end of the EC fan body, the protective cover is fixedly installed on the top outer wall of the EC fan body, the protective cover is located around the air inlet, and a cover plate is inserted and installed on the top of the protective cover, the cover plate having a hollow structure in the middle.

[0010] In a preferred embodiment of this utility model, a docking bracket is installed on the inner wall of the protective cover on the side away from the dust removal fan. The inner wall of the docking bracket has a slot, and a docking block can be detachably inserted into the inner wall of the slot.

[0011] In a preferred embodiment of this utility model, a handle is fixedly installed on the outer wall of the docking block, a dust collection bag is fixedly connected to the outer wall of the docking block, and an exhaust hole is provided at the tail of the dust collection bag.

[0012] In a preferred embodiment of the present invention, the dust removal component includes a lead screw, which is rotatably connected to the side walls at both ends of the protective cover via bearings. A first groove is formed on the outer wall of the protective cover, and a first servo motor is fixedly installed on the inner wall of the first groove.

[0013] In a preferred embodiment of this utility model, the first servo motor is connected to the outer wall of the lead screw through a first gear meshing transmission, the sliding cleaning seat slides in cooperation with the inner wall of the protective cover, and the inner wall of the protective cover guides the sliding cleaning seat.

[0014] In a preferred embodiment of this utility model, the inner wall of the sliding cleaning seat is threadedly connected to the outer wall of the lead screw, and a second groove is formed on the inner wall of the sliding cleaning seat.

[0015] In a preferred embodiment of this utility model, a second servo motor is fixedly installed on the inner wall of the second groove, and the output shaft of the second servo motor is connected to the outer wall of the cleaning brush roller through a second gear meshing transmission.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0017] 1. A three-stage dustproof system is formed by the primary filtration of the dustproof net, the active dust brushing of the cleaning brush roller, and the negative pressure adsorption of the dust removal fan. Dust and impurities enter the fan, avoiding the reduction of air volume and increase of energy consumption caused by dust accumulation on the impeller.

[0018] 2. The cover plate on the top of the protective cover does not interfere with the internal sliding cleaning components. During maintenance, only the dust collection bag needs to be cleaned or the dust screen needs to be rinsed. There is no need to disassemble the entire machine, which significantly reduces maintenance manpower and downtime costs. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the main structure of an energy-saving EC fan structure for a central air conditioning system;

[0021] Figure 2 This is a top view schematic diagram of an energy-saving structure for a central air conditioning EC fan.

[0022] Figure 3 This is a side view schematic diagram of an energy-saving structure for an EC fan in a central air conditioning system.

[0023] Figure 4 This is a schematic diagram of the exploded structure of an energy-saving EC fan in a central air conditioning system.

[0024] Figure 5 This is a schematic diagram of the dust collection component in an energy-saving structure for a central air conditioning EC fan;

[0025] Figure 6 This is a schematic diagram of the dust removal component in an energy-saving structure for an EC fan in a central air conditioning system.

[0026] In the diagram: EC fan body 100, air outlet 110, air inlet 130, dustproof net 140, protective cover 200, dust removal fan 210, docking bracket 220, slot 221, docking block 230, handle 231, dust collection bag 240, dust collection bag 241, cover plate 250, lead screw 300, first servo motor 310, first gear 320, sliding cleaning seat 330, cleaning brush roller 340, exhaust port 241, second servo motor 350, second gear 351. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] Example 1: As Figures 1-6 ,include:

[0029] EC fan body 100, with an air inlet 130 on the top of the EC fan body 100, and a detachable dustproof net 140 snapped onto the top of the air inlet 130.

[0030] The dust collection assembly includes a protective cover 200, a dust removal fan 210 installed on the outer wall of the protective cover 200, and a dust collection bag 240 inserted into the inner wall of the protective cover 200 on the side away from the dust removal fan 210.

[0031] The dust removal assembly includes a sliding cleaning seat 330, with a cleaning brush roller 340 rotatably connected to the inner wall of the sliding cleaning seat 330.

[0032] The specific application scenario of this embodiment is as follows: Outside air is drawn in through the air inlet 130 at the top of the EC fan body 100. A detachable dust filter 140, snapped onto the top, filters dust and impurities. A protective cover 200 surrounds the air inlet 130, forming an independent space. When the dust removal fan 210 on the outer wall is activated, it generates negative pressure, drawing dust accumulated on the surface of the dust filter and collecting it in a dust collection bag 240 inserted into the inner wall of the protective cover 200. Simultaneously, a sliding cleaning seat 330 drives a cleaning brush roller 340, rotatably connected to the inner wall, to reciprocate, actively brushing off stubborn dust from the surface of the dust filter. This, combined with negative pressure adsorption, achieves multi-stage dust prevention. Both the dust filter 140 and the dust collection bag 240 are detachable for easy maintenance and cleaning.

[0033] Example 2: Figures 1-3 The EC fan body 100 has an air outlet 110 at its front end. The protective cover 200 is fixedly installed on the top outer wall of the EC fan body 100. The protective cover 200 is located around the air inlet 130. The top of the protective cover 200 is connected to a cover plate 250, which has a hollow structure in the middle.

[0034] The specific application scenario of this embodiment is as follows: The air outlet 110 at the front end of the EC fan body 100 is used to discharge the treated airflow. The protective cover 200 on the top outer wall surrounds the air inlet 130 and is fixedly installed. The cover plate 250 inserted at the top is hollow in the middle and aligned with the air inlet 130. Outside air enters the interior of the protective cover 200 from the hollow area of ​​the cover plate 250, enters the fan body through the air inlet 130, is accelerated by the impeller, and is discharged from the air outlet 110. The protective cover 200 can prevent debris from hitting the dust filter and provide installation space for the dust removal components. The cover plate 250 protects the air inlet from the influence of the external environment and ensures smooth airflow intake.

[0035] Example 3: Figure 4 and Figure 5 A docking bracket 220 is installed on the inner wall of the protective cover 200 away from the dust collector fan 210. The inner wall of the docking bracket 220 has a slot 221. A docking block 230 is detachably inserted into the inner wall of the slot 221. A handle 231 is fixedly installed on the outer wall of the docking block 230. A dust collection bag 241 is fixedly connected to the outer wall of the docking block 230. An exhaust hole 241 is provided at the tail of the dust collection bag 241.

[0036] The specific application scenario of this embodiment is as follows: A docking bracket 220 is installed on the inner wall of the protective cover 200. Its slot 221 can be detachably inserted into the docking block 230, which can be manually inserted and removed by the handle 231. The outer wall is fixedly connected to the dust collection bag 241, and an exhaust hole 341 is provided at the tail. When the dust removal fan 210 is running, the airflow carries dust into the dust collection bag 241. The exhaust hole 341 balances the air pressure inside the bag to ensure dust collection efficiency and trap dust. When cleaning, pull the handle 231 to remove the docking block 230, and directly disassemble the dust collection bag 240 to empty the dust, improving the convenience of maintenance.

[0037] Example 4: Figure 4 and Figure 6 The dust removal assembly includes a lead screw 300, which is rotatably connected to the side walls of the protective cover 200 at both ends via bearings. A first groove is formed on the outer wall of the protective cover 200, and a first servo motor 310 is fixedly installed on the inner wall of the first groove. The first servo motor 310 is connected to the outer wall of the lead screw 300 via a first gear 320. A sliding cleaning seat 330 slides in cooperation with the inner wall of the protective cover 200, and the inner wall of the protective cover 200 guides the sliding cleaning seat 330. The inner wall of the sliding cleaning seat 330 is threadedly connected to the outer wall of the lead screw 300. A second groove is formed on the inner wall of the sliding cleaning seat 330, and a second servo motor 350 is fixedly installed on the inner wall of the second groove. The output shaft of the second servo motor 350 is connected to the outer wall of the cleaning brush roller 340 via a second gear 351.

[0038] The specific application scenario of this embodiment is as follows: The first servo motor 310 is installed in the groove on the outer wall of the protective cover 200. It drives the lead screw 300 to rotate through the meshing of the first gear 320, so that the sliding cleaning seat 330, which is threadedly connected to the lead screw, moves back and forth along the inner wall of the protective cover 200, covering the full width of the dustproof net 140. The second servo motor 350 on the inner wall of the sliding cleaning seat 330 drives the cleaning brush roller 340 to rotate through the second gear 351, brushing off the dust accumulated on the surface of the dustproof net 140 and cooperating with the dust removal fan to suck in the dust collection bag 241 under negative pressure. The first servo motor 310 precisely controls the moving speed of the sliding cleaning seat 330 and the rotation speed of the brush roller 340 to achieve automated deep cleaning and reduce manual intervention.

[0039] The working principle of this utility model is as follows: When used by those skilled in the art, the dustproof net 140 at the air inlet 130 at the top of the EC fan body 100 first filters dust and impurities from the outside air. The outer protective cover 200 forms a protective space and provides an installation base for each component. The dust removal fan 210 creates a negative pressure inside the protective cover 200, sucking in the dust accumulated on the surface of the dustproof net 140 and collecting it through the dust collection bag 240 fixed by the docking bracket 220, docking block 230, and other structures. At the same time, the first servo motor 310 in the dust removal component is driven by gears and lead screws 300. The sliding cleaning seat 330 moves back and forth, and the second servo motor 350 drives the cleaning brush roller 340 to rotate, actively brushing off stubborn dust from the surface of the dustproof net 140. Combined with negative pressure, multi-stage dust removal is achieved. The top cover 250 protects the air inlet and ensures smooth airflow. The whole system achieves efficient dust prevention, automated cleaning and convenient maintenance through mechanical structure linkage, improving the operating efficiency and reliability of the fan, reducing the resistance of the EC fan body 100 to overcome the intake air, thereby reducing the working resistance of the central air conditioning EC fan when it is working, and improving the practicality and energy saving effect of the equipment.

[0040] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An energy-saving structure for a central air conditioning EC fan, characterized in that, include: EC fan body (100), with an air inlet (130) on the top of the EC fan body (100), and a detachable dustproof net (140) snapped onto the top of the air inlet (130); The dust collection assembly includes a protective cover (200), on the outer wall of the protective cover (200) a dust removal fan (210) is installed, and a dust collection bag (240) is inserted into the inner wall of the protective cover (200) on the side away from the dust removal fan (210). The dust removal assembly includes a sliding cleaning seat (330) with a cleaning brush roller (340) rotatably connected to the inner wall of the sliding cleaning seat (330).

2. The energy-saving structure for a central air conditioning EC fan according to claim 1, characterized in that, The EC fan body (100) has an air outlet (110) at its front end. The protective cover (200) is fixedly installed on the top outer wall of the EC fan body (100). The protective cover (200) is located around the air inlet (130). A cover plate (250) is inserted and installed on the top of the protective cover (200). The cover plate (250) has a hollow structure in the middle.

3. The energy-saving structure for a central air conditioning EC fan according to claim 1, characterized in that, A docking bracket (220) is installed on the inner wall of the protective cover (200) away from the dust removal fan (210). The inner wall of the docking bracket (220) is provided with a slot (221). A docking block (230) can be detachably inserted into the inner wall of the slot (221).

4. The energy-saving structure for a central air conditioning EC fan according to claim 3, characterized in that, A handle (231) is fixedly installed on the outer wall of the docking block (230), and a dust collection bag (240) is fixedly connected to the outer wall of the docking block (230). An exhaust hole (241) is provided at the tail of the dust collection bag (240).

5. The energy-saving structure of a central air conditioning EC fan according to claim 1, characterized in that, The dust removal assembly includes a lead screw (300), which is rotatably connected to the side walls at both ends of the protective cover (200) via bearings. A first groove is formed on the outer wall of the protective cover (200), and a first servo motor (310) is fixedly installed on the inner wall of the first groove.

6. The energy-saving structure for a central air conditioning EC fan according to claim 5, characterized in that, The first servo motor (310) is connected to the outer wall of the lead screw (300) by meshing transmission through the first gear (320). The sliding cleaning seat (330) slides in cooperation with the inner wall of the protective cover (200), and the inner wall of the protective cover (200) guides the sliding cleaning seat (330).

7. The energy-saving structure for a central air conditioning EC fan according to claim 6, characterized in that, The inner wall of the sliding cleaning seat (330) is threadedly connected to the outer wall of the lead screw (300), and a second groove is formed on the inner wall of the sliding cleaning seat (330).

8. The energy-saving structure of a central air conditioning EC fan according to claim 7, characterized in that, The second servo motor (350) is fixedly installed on the inner wall of the second groove. The output shaft of the second servo motor (350) is connected to the outer wall of the cleaning brush roller (340) through the meshing of the second gear (351).

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