Filter screen self-cleaning device, fan coil and air conditioner

Abstract

The utility model provides a kind of filter screen self-cleaning device, fan coil and air conditioner, wherein filter screen self-cleaning device includes storage shell, filter screen roll and release assembly and cleaning assembly, storage shell is equipped with filter screen import and export, filter screen roll and release assembly pass through the filter screen that is rolled up to make filter screen be received into storage shell via filter screen import and export, cleaning assembly carries out cleaning to filter screen located in storage shell;The utility model can utilize filter screen roll and release assembly to be received into storage shell with the filter screen that needs cleaning, then utilize cleaning assembly to clean itself, to remove dirt.Therefore, the utility model can replace manpower to clean filter screen, reach the purpose of saving labor cost, convenient cleaning.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning, and more specifically, it relates to a filter self-cleaning device, a fan coil unit, and an air conditioner. Background Technology

[0002] In the current air conditioning industry, filters are installed at the air inlet to filter dust and other impurities from the air, thus purifying it. However, after prolonged operation, these filters accumulate a lot of dust and other debris. If not cleaned regularly, they can breed bacteria, fungi, and other harmful substances, actually worsening the indoor environment. Current filter cleaning methods involve manual disassembly, but air conditioners are generally mounted high up, and their installation locations are limited, making disassembly and cleaning inconvenient. Therefore, the self-cleaning function of the filter is of great importance. Utility Model Content

[0003] The purpose of this invention is to provide a filter self-cleaning device, a fan coil unit, and an air conditioner to solve the problem of inconvenience in manually cleaning the filter in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] In a first aspect, a filter self-cleaning device is provided, comprising a storage shell, a filter winding assembly, and a cleaning assembly; wherein, the storage shell is provided with a filter inlet and outlet, the filter winding assembly winds up the filter to store the filter in the storage shell via the filter inlet and outlet, and the cleaning assembly cleans the filter located in the storage shell.

[0006] Furthermore, the filter winding assembly includes:

[0007] An active rotating shaft and a driven rotating shaft are arranged at intervals along the winding direction of the filter screen, and the active rotating shaft is located inside the housing.

[0008] A power assembly is mounted on the housing, and the output end of the power assembly is connected to the drive shaft.

[0009] The traction component is connected to the active rotating shaft and the driven rotating shaft, and when the power component drives the active rotating shaft to rotate, it drives the filter screen to be wound up or released.

[0010] Furthermore, the traction assembly includes two lassos, which are respectively fixed to both sides of the filter screen, and the length of the lassos is greater than the length of the filter screen.

[0011] Furthermore, the lasso is equipped with an anti-slip structure.

[0012] Furthermore, the anti-slip structure consists of anti-slip protrusions spaced apart on the lasso.

[0013] Furthermore, the housing includes an outer cylinder and two cover plates. The outer cylinder is provided with the filter screen inlet and outlet, and the outer cylinder is sleeved outside the active rotating shaft. The two cover plates are detachably disposed at both ends of the outer cylinder.

[0014] Furthermore, the cleaning assembly includes an inlet pipe mounted on one of the cover plates, an inlet control valve and an inlet pump spaced apart on the inlet pipe, an outlet pipe mounted on the other cover plate, and an outlet control valve and an outlet pump spaced apart on the outlet pipe.

[0015] Furthermore, the power assembly includes a bracket mounted on one of the cover plates and a drive motor fixed to the bracket.

[0016] Secondly, a fan coil unit is provided, comprising a housing, a filter screen installed on the air inlet side of the housing, and a filter screen self-cleaning device as described above.

[0017] Thirdly, an air conditioner is provided, including the fan coil unit as described above.

[0018] Compared with existing technologies, the beneficial effects of the filter self-cleaning device, fan coil unit, and air conditioner provided by this utility model are as follows: This utility model can use a filter winding assembly to store the filter that needs cleaning into a storage shell, and then use a cleaning assembly to self-clean it to remove dirt. Therefore, this utility model can replace manual cleaning of the filter, achieving the purpose of saving labor costs and facilitating cleaning. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of the fan coil unit in this utility model;

[0021] Figure 2 This is an exploded view of the fan coil unit in this utility model;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 for Figure 3 Enlarged view at point B in the middle;

[0024] Figure 5 This is a perspective view of the outer and inner cylinders of this utility model;

[0025] Figure 6 This is a partial enlarged view of the lasso in this utility model;

[0026] Figure 7 This is a front view of the filter screen after the self-cleaning device of the filter screen in this utility model has been wound up;

[0027] Figure 8 This is a top view of the filter screen self-cleaning device of this utility model after the filter screen is wound up;

[0028] Figure 9 This is a front view of the filter self-cleaning device in this utility model after the filter screen has been released;

[0029] Figure 10 This is a top view of the filter self-cleaning device in this utility model after the filter screen has been released;

[0030] Figure 11 This is a flowchart of the cleaning control method for the filter self-cleaning device in this utility model;

[0031] The main markings in the attached figures are as follows:

[0032] 1. Storage shell; 10. Filter inlet / outlet; 11. Outer cylinder; 12. Cover plate;

[0033] 21. Driving shaft; 22. Driven shaft; 23. Power assembly; 24. Traction assembly; 231. Bracket; 232. Drive motor; 241. Lasso; 242. Anti-slip protrusion;

[0034] 31. Inlet pipe; 32. Outlet pipe;

[0035] 400. Fan coil unit; 41. Housing; 42. Filter screen. Detailed Implementation

[0036] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0037] In the current air conditioning industry, filters are installed at the air inlet to filter dust and other impurities from the air, thus purifying the air. However, after prolonged operation, these filters accumulate a large amount of dust and other debris. If not cleaned regularly, they can breed bacteria, fungi, and other harmful substances, leading to a deterioration of the indoor environment. Currently, the usual method for cleaning filters is to disassemble and manually clean them. However, because fan coil units are typically suspended high up, and their installation locations are limited, disassembly and cleaning are extremely inconvenient. Therefore, the self-cleaning function of the filter is of paramount importance.

[0038] Based on this, the filter self-cleaning device, fan coil unit and air conditioner proposed in this utility model can replace manual cleaning of the filter, thereby saving labor costs and facilitating cleaning.

[0039] like Figures 1 to 5 As shown, the filter self-cleaning device of this utility model includes a storage shell 1, a filter winding assembly, and a cleaning assembly; wherein, the storage shell 1 is provided with a filter inlet and outlet 10, the filter winding assembly winds up the filter 42 so that the filter 42 is stored in the storage shell 1 through the filter inlet and outlet 10, and the cleaning assembly cleans the filter 42 located in the storage shell 1.

[0040] The advantage of this design is that the filter screen 42 to be cleaned can be stored in the storage shell 1 using the filter screen winding assembly, and then self-cleaned by the cleaning assembly to remove dirt. Therefore, this invention can replace manual cleaning of the filter screen 42, achieving the purpose of saving labor costs and facilitating cleaning.

[0041] In addition, the self-cleaning process described above is completed entirely within the housing 1, which reduces the risk of the cleaned-out dirt contaminating the unit.

[0042] like Figure 1 , Figure 2 As shown, the filter screen winding assembly includes a drive shaft 21, a driven shaft 22, a power component 23, and a traction component 24. The drive shaft 21 and the driven shaft 22 are spaced apart along the winding direction of the filter screen 42, and the drive shaft 21 is located inside the housing 1. The power component 23 is mounted on the housing 1, and its output end is connected to the drive shaft 21. The traction component 24 is connected to the drive shaft 21 and the driven shaft 22, and when the power component 23 drives the drive shaft 21 to rotate, it drives the filter screen 42 to wind up or unwind.

[0043] The advantage of this design is that the power component 23 provides stable power, ensuring that the active rotating shaft 21 rotates at a preset speed and direction. This, in turn, drives the driven rotating shaft 22 via the traction component 24 to work in tandem, achieving smooth and orderly winding or unwinding of the filter screen 42. Whether for storage before cleaning or unfolding after cleaning, the position and state of the filter screen 42 can be precisely controlled, ensuring the reliability and stability of the entire filter self-cleaning device.

[0044] like Figure 1 , Figure 2 As shown, the traction assembly 24 includes two lassos 241, which are respectively fixed to both sides of the filter screen 42, and the length of the lassos 241 is greater than the length of the filter screen 42.

[0045] The advantage of this design is that when the power component 23 drives the active shaft 21 to rotate, the two lassos 241 can simultaneously drive both sides of the filter screen 42, ensuring that the filter screen 42 is subjected to uniform force during winding or unwinding, without any deviation or twisting. At the same time, since the length of the lasso 241 is greater than the length of the filter screen 42, for example, more than twice the length of the filter screen 42, when the filter screen 42 is fully wound up, there is still a lasso 241 positioned between the active shaft 21 and the driven shaft 22. This provides the filter screen 42 with a continuous and stable traction force, further ensuring the smoothness of the winding or unwinding process of the filter screen 42.

[0046] like Figure 7 , Figure 8 As shown, when the filter screen 42 is retracted into the housing 1, only the lasso 241 remains in its original position. Figure 9 , Figure 10 As shown, when the filter screen 42 is in the normal working position, the excess length of the lasso 241, except for the part connected to the filter screen 42, will be wound around the driven shaft 22.

[0047] like Figure 6 As shown, the lasso 241 is provided with an anti-slip structure. For example, the anti-slip structure can be anti-slip protrusions 242 spaced apart on the lasso 241. Of course, the anti-slip structure can also be an anti-slip and wear-resistant layer, etc.

[0048] The advantage of this design is that, during the winding or unwinding process of the filter screen 42, the anti-slip structure on the lasso 241 effectively increases the friction between the lasso 241 and the driving shaft 21 and driven shaft 22, thereby preventing the lasso 241 from slipping. This not only ensures the precision of the filter screen 42's movement, allowing it to complete the winding or unwinding action according to the preset trajectory and speed, but also avoids uneven force on the filter screen 42 caused by slippage, thus reducing the probability of damage or malfunction of the filter screen 42, extending its service life, and improving the stability and reliability of the entire filter screen self-cleaning device.

[0049] like Figure 1 As shown, the housing 1 includes an outer cylinder 11 and two cover plates 12. The outer cylinder 11 is sleeved on the outside of the drive shaft 21. The outer cylinder 11 is provided with a filter screen inlet and outlet 10. The two cover plates 12 are detachably disposed at both ends of the outer cylinder 11.

[0050] The advantage of this design is that when it is necessary to clean the inside of the housing 1 or to inspect components such as the active shaft 21, the detachable cover 12 can be opened easily and quickly, providing great convenience for operators. Furthermore, the outer cylinder 11, fitted around the active shaft 21, provides a certain degree of protection, preventing external dust and debris from entering the area where the active shaft 21 is located and affecting its normal operation. This ensures the overall stability of the filter self-cleaning device and improves the reliability of the filter self-cleaning function during air conditioner operation.

[0051] In specific applications, the outer cylinder 11 can be placed below the normal working position of the filter screen 42, with the filter screen inlet / outlet 10 facing upwards; or it can be placed beside the normal working position of the filter screen 42, with the filter screen inlet / outlet 10 facing left or right. Especially in the latter case, a telescopic mechanism can be added to adjust the size of the filter screen inlet / outlet 10. During the process of winding or unwinding the filter screen 42, the diameter of the filter screen inlet / outlet 10 is enlarged so that the filter screen 42 can smoothly enter and exit the housing 1; after the filter screen 42 is completely stored in the housing 1, the diameter of the filter screen inlet / outlet 10 is reduced, or even completely sealed, thereby reducing the risk of liquid overflowing from the filter screen inlet / outlet 10 during the cleaning process of the filter screen 42.

[0052] like Figure 1 , Figure 3 As shown, the cleaning assembly includes an inlet pipe 31 mounted on one of the cover plates 12, an inlet control valve and an inlet pump spaced apart from each other on the inlet pipe 31, an outlet pipe 32 mounted on the other cover plate 12, and an outlet control valve and an outlet pump spaced apart from each other on the outlet pipe 32. In addition, the cleaning assembly also includes a storage tank, etc.

[0053] The advantage of this design is that, through the configuration of the inlet pipe 31 and the outlet pipe 32, along with corresponding control valves and pumps, the filter screen 42 inside the housing 1 can be effectively cleaned. When cleaning is required, the inlet control valve and the inlet pump are opened, and the cleaning fluid flows into the housing 1 through the inlet pipe 31 to rinse the filter screen 42; subsequently, the outlet control valve and the outlet pump are opened to discharge the waste liquid after cleaning through the outlet pipe 32. This cleaning method can promptly remove dust and debris from the filter screen 42, preventing their accumulation from affecting the filtration effect of the filter screen 42, thereby ensuring the overall stability of the filter self-cleaning device and improving the reliability of the filter self-cleaning function during air conditioning operation.

[0054] like Figure 1 , Figure 4 As shown, the power assembly 23 includes a bracket 231 mounted on one of the cover plates 12, and a drive motor 232 fixed on the bracket 231. The drive motor 232 may be a stepper motor.

[0055] The advantage of this design is that by fixing the drive motor 232 to the bracket 231 and mounting it on the cover plate 12, a stable and reliable power source is provided for the entire filter self-cleaning device. The selection of a stepper motor makes the power output more precise, and can accurately control the rotation speed and angle of the filter according to actual needs, thereby better realizing the self-cleaning function of the filter.

[0056] like Figure 1 , Figure 2 As shown, the fan coil unit 400 provided by this utility model includes a housing 41, a filter screen 42 installed on the air inlet side of the housing 41, and a filter screen self-cleaning device.

[0057] In practical applications, the fan coil unit 400, as a terminal product of the air conditioning system, functions to regulate the comfort of the indoor environment. However, indoor environments often contain pollutants such as dust and lint. To ensure that the air delivered by the fan coil unit 400 is clean and to reduce the contamination of the surface of the cooling coil by dust and lint, a filter 42 is usually added to the air inlet side of the fan coil unit 400. In this way, dust, lint, and other pollutants are blocked from entering, thereby improving the comfort of the indoor environment.

[0058] However, over time, a large amount of dust, lint, and other debris will accumulate on the filter screen 42, causing the mesh of the filter screen 42 to become clogged. This increases the resistance of the filter screen 42, reduces the filtration efficiency, and ultimately decreases the comfort of the indoor environment and the heat exchange efficiency of the fan coil unit 400. Therefore, the filter screen 42 must be cleaned regularly.

[0059] Based on this, the present invention adds a filter self-cleaning device to the fan coil unit 400, which can replace manual cleaning of the filter 42, thereby saving labor costs and facilitating cleaning.

[0060] For ease of understanding, the structure of the filter self-cleaning device provided in a preferred embodiment will be described in detail below.

[0061] like Figures 1 to 10 As shown, the filter self-cleaning device includes components such as an outer cylinder 11, a cover plate 12, a drive shaft 21, a driven shaft 22, a lasso 241, and a drive motor 232. The outer cylinder 11 has a filter inlet / outlet 10 and is fixedly mounted on the housing 41 with screws. The drive shaft 21 is installed in the middle of the outer cylinder 11, and two cover plates 12 are installed at opposite ends of the outer cylinder 11. An inlet pipe 31 and an inlet control valve are installed on the cover plate 12 at the top of the outer cylinder 11, and an outlet pipe 32 and an outlet control valve are installed on the cover plate 12 at the bottom of the outer cylinder 11. The drive motor 232 is mounted on the cover plate 12 at the bottom of the outer cylinder 11 via a bracket 231, and the drive end of the drive motor 232 is connected to the drive shaft 21. The driven shaft is mounted on the housing 41, and two loops 241 are fixed between the driving shaft 21 and the driven shaft 22 at intervals. The filter screen 42 is fixed between the two loops 241.

[0062] Based on the structure of the aforementioned filter self-cleaning device, the filter 42 can be stored and cleaned. When the drive motor 232 runs according to the program, the filter 42 in its initial state is as follows: Figure 9 and Figure 10 As shown, at this time, the drive motor 232 will drive the active shaft 21 to rotate, and the lasso 241 will rotate with the active shaft 21, winding the filter screen 42 into the outer cylinder 11. Simultaneously, the lasso 241 previously wound on the driven shaft 22 will be released and moved to the upper and lower sides of the original position of the filter screen 42. At this time, the filter screen 42 is in the following state: Figure 7 and Figure 8 As shown. After the filter screen 42 is stored inside the outer cylinder 11, the inlet control valve located above the outer cylinder 11 will open, and the cleaning solution and water will be injected into the outer cylinder 11 in sequence through the inlet pipe 31 to disinfect and rinse the filter screen 42. The cleaning solution and water are controlled by the outlet control valve located below the outer cylinder 11 and are discharged from the outer cylinder 11 through the outlet pipe 32, thus completing the self-cleaning process. The cleaning solution can be distributed according to the type of dirt. Although viruses and bacteria cannot be "seen", the contamination status of the filter screen 42 can be judged by the following signs and behaviors, thereby determining whether cleaning or replacement is necessary: ​​if black stains or organic matter accumulate; if there is a musty or sour smell, this indicates microbial growth, and hydrogen peroxide cleaning agent should be used; when dust clogs the pores severely, sodium bicarbonate diluted with water should be used for cleaning.

[0063] Based on the structure of the above-mentioned filter self-cleaning device, such as Figure 11 As shown, the cleaning control method includes the following steps: 1) Set the number of steps, control the drive motor to rotate, and roll the filter screen into the outer cylinder; 2) Control the start of the inlet pump and the inlet control valve to inject cleaning solution; 3) Set the soaking time of the cleaning solution; 4) Control the start of the outlet pump and the outlet control valve to extract the cleaning solution; 5) Control the start of the inlet pump and the inlet control valve to inject clean water; 6) Control the start of the outlet pump and the outlet control valve to extract clean water; 7) Set the number of steps, control the drive motor to rotate, and bring the filter screen out of the outer cylinder.

[0064] In short, by controlling the rotation of the main rotating shaft, the filter screen 42 is stored in the outer cylinder 11. Then, the cleaning component is controlled to inject cleaning liquid to soak the filter screen 42 for sterilization. Then, the cleaning component is controlled to inject water to rinse the filter screen 42. After rinsing, the filter screen 42 is rotated back to its original position, thus completing the self-cleaning of the filter screen 42.

[0065] The air conditioner provided by this utility model includes a fan coil unit 400. Since the fan coil unit 400 is equipped with a filter self-cleaning device, this device can replace manual cleaning of the filter 42, thereby saving labor costs and facilitating cleaning, resulting in a better user experience for the air conditioner.

[0066] It should be noted that the terminology used above is for describing specific embodiments only and is not intended to limit the exemplary embodiments according to this utility model. When the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. The order of execution of actions, steps, etc., in the apparatus and methods shown in the specification and drawings can be implemented in any order unless a specific express order is specified, and as long as the output of the preceding process is not used in the subsequent process. Similar sequential terms used for ease of description do not imply that such an order must be followed.

[0067] Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0068] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter self-cleaning device, characterized in that, The device includes a storage shell, a filter screen winding assembly, and a cleaning assembly. The storage shell has a filter screen inlet and outlet. The filter screen winding assembly winds up the filter screen to store it in the storage shell through the filter screen inlet and outlet. The cleaning assembly cleans the filter screen located in the storage shell.

2. The filter self-cleaning device as described in claim 1, characterized in that, The filter screen winding assembly includes: An active rotating shaft and a driven rotating shaft are arranged at intervals along the winding direction of the filter screen, and the active rotating shaft is located inside the housing. A power assembly is mounted on the housing, and the output end of the power assembly is connected to the drive shaft. The traction component is connected to the active rotating shaft and the driven rotating shaft, and when the power component drives the active rotating shaft to rotate, it drives the filter screen to be wound up or released.

3. The filter self-cleaning device as described in claim 2, characterized in that, The traction assembly includes two lassos, which are respectively fixed to both sides of the filter screen, and the length of the lassos is greater than the length of the filter screen.

4. The filter self-cleaning device as described in claim 3, characterized in that, The lasso is equipped with an anti-slip structure.

5. The filter self-cleaning device as described in claim 4, characterized in that, The anti-slip structure consists of anti-slip protrusions spaced apart on the lasso.

6. The filter self-cleaning device as described in claim 2, characterized in that, The housing includes an outer cylinder and two cover plates. The outer cylinder is provided with the filter screen inlet and outlet, and the outer cylinder is sleeved outside the active rotating shaft. The two cover plates are detachably disposed at both ends of the outer cylinder.

7. The filter self-cleaning device as described in claim 6, characterized in that, The cleaning assembly includes an inlet pipe mounted on one of the cover plates, an inlet control valve and an inlet pump spaced apart on the inlet pipe, an outlet pipe mounted on the other cover plate, and an outlet control valve and an outlet pump spaced apart on the outlet pipe.

8. The filter self-cleaning device as described in claim 6, characterized in that, The power assembly includes a bracket mounted on one of the cover plates and a drive motor fixed to the bracket.

9. A fan coil unit, characterized in that, The housing, the filter screen installed on the air inlet side of the housing, and the filter screen self-cleaning device as described in any one of claims 1-8.

10. An air conditioner, characterized in that, Including the fan coil unit as described in claim 9.

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