Energy-saving control device for central air-conditioning system

By using a dry cleaning method, which combines an air pump and an air extraction pump with a high-pressure jet nozzle and a cleaning brush, the problem of reduced heat exchange rate and scale corrosion caused by dust accumulation in the central air conditioning system is solved, achieving a highly efficient and convenient cleaning effect.

CN224201788UActive Publication Date: 2026-05-05SHANDONG DIGITAL INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG DIGITAL INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-05-14
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

After prolonged use, the energy-saving control devices of existing central air conditioning systems accumulate dust on the fan coil modules, leading to a decrease in heat exchange efficiency. Furthermore, residual cleaning fluid during the cleaning process causes scale corrosion of the heat exchange fins.

Method used

A dry cleaning method using an air pump and an air extraction pump is employed. High-pressure jet nozzles spray air and cleaning brushes clean the coil module. Dust is collected in a collection box and filtered by a filter screen to achieve dry cleaning.

Benefits of technology

It effectively removes dust, avoids scale corrosion, simplifies the cleaning process, reduces energy consumption, and improves heat exchange efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an energy-saving control device for a central air-conditioning system, which comprises a fan coil machine body, a water pan and a coil module, the bottom of the fan coil machine body is fixedly connected with the water pan, the coil module is fixedly connected inside the fan coil machine body, the coil module is provided with a cleaning component, and the cleaning component is fixedly connected with the water pan. The cleaning assembly comprises a cleaning block, a sliding block, a front plate, a rear plate, a high-pressure jet head, a cleaning brush, a through hole, a front air pipe and a rear air pipe. By arranging the cleaning block, the sliding block, the front plate, the rear plate, a high-pressure jet head, a cleaning brush, a through hole, a collecting box, an air extracting pump, an air inflating pump, a filter screen, a sealing door, a front air pipe and a rear air pipe, the air inflating pump inflates the rear plate, the air extracting pump exhausts air from the front plate, heat conversion fins in the coil pipe module can be subjected to dry type cleaning, and cleaned dust is concentrated in the collecting box; and centralized treatment is facilitated, the influence on the heat conversion fins is small, cleaning is easy, and operation is easy.
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Description

Technical Field

[0001] This utility model relates to the field of central air conditioning system technology, and in particular to an energy-saving control device for central air conditioning systems. Background Technology

[0002] A central air conditioning system consists of one or more cooling / heating source systems and multiple air conditioning systems. Unlike traditional refrigerant-based air conditioners, this system centrally processes air to achieve comfort requirements. Central air conditioning systems are commonly used in the interiors of large buildings.

[0003] Existing energy-saving control devices for central air conditioning systems accumulate a large amount of dust on the fan coil modules after prolonged operation during terminal adjustments. This dust reduces the heat exchange rate of the internal coil modules, increasing energy consumption. A search reveals that application number CN202221043105.1, entitled "An Energy-Saving Control Device for Central Air Conditioning Systems," uses a motor to drive a mechanism that moves up and down along a toothed block. Simultaneously, due to the clearance between the limiting protrusion and the guide rail, a nozzle reciprocates up and down along a traction frame, delivering cleaning fluid from the fluid pipeline to the nozzle and spraying it onto the heat exchange fins of the fan coil unit. This removes the dust adhering to the heat exchange fins, ensuring their heat exchange efficiency and reducing energy consumption. However, prolonged use of cleaning fluid on the heat exchange fins leads to scale buildup, and the residual water further exacerbates corrosion, harming the fins. Utility Model Content

[0004] The purpose of this utility model is to provide an energy-saving control device for a central air conditioning system. An air pump inflates the rear panel and an air extraction pump extracts air from the front panel, which can perform dry cleaning of the heat exchange fins in the coil module and collect the cleaned dust in a collection box for convenient centralized treatment. It has little impact on the heat exchange fins and is simple and easy to operate.

[0005] To achieve the above objectives, an energy-saving control device for a central air conditioning system is provided, comprising: a fan coil unit body, a water collection tray, and a coil module. The bottom of the fan coil unit body is fixedly connected to the water collection tray, and the inside of the fan coil unit body is fixedly connected to the coil module. A cleaning assembly is provided on the coil module. The cleaning assembly includes a cleaning block, a slider, a front plate, a rear plate, a high-pressure jet nozzle, a cleaning brush, a through hole, a front air pipe, and a rear air pipe. The top of the cleaning block is fixedly connected to the slider, and the bottom of the cleaning block is fixedly connected to the front and rear plates. Both the front and rear plates are hollow structures. A cleaning brush is fixedly connected to the inner side of the front and rear plates. The front plate has a through hole, and the rear plate is fixedly connected to the high-pressure jet nozzle. The front plate has a fixed front air pipe, and the rear plate has a fixed rear air pipe. An electric rod is fixedly connected to the cleaning block, and the end of the electric rod away from the cleaning block is fixedly connected to the fan coil unit body.

[0006] According to the energy-saving control device for a central air conditioning system, the cleaning component further includes a collection box, an air pump, an air pump, a filter, and a sealing door. The top of the collection box is fixedly connected to the air pump and the air pump, the inside of the collection box is fixedly connected to the filter, and the bottom of the collection box is provided with a sealing door. The collection box and the sealing door are rotatably connected by a hinge and fixed by a lock.

[0007] According to the energy-saving control device for a central air conditioning system, a sliding groove is provided on the inner top surface of the fan coil unit body, and the slider is located inside the sliding groove.

[0008] According to the energy-saving control device for a central air conditioning system, the collection box is fixedly connected to the left side wall of the fan coil unit.

[0009] According to the energy-saving control device for a central air conditioning system, the end of the front air pipe away from the front panel is connected to the collection box, and the front air pipe is located below the filter screen.

[0010] According to the energy-saving control device for a central air conditioning system, the end of the rear air pipe away from the rear plate is fixedly connected to the output end of the air pump.

[0011] According to the energy-saving control device for a central air conditioning system, both the front and rear air pipes are folded flexible hoses.

[0012] The above solution has the following advantages: by setting up a cleaning block, slider, front plate, rear plate, high-pressure jet nozzle, cleaning brush, through hole, collection box, vacuum pump, inflation pump, filter screen, sealing door, front air pipe and rear air pipe, the inflation pump inflates the rear plate and the vacuum pump evacuates the front plate, which can dry clean the heat conversion fins in the coil module and concentrate the cleaned dust in the collection box for convenient centralized treatment. It has little impact on the heat conversion fins and is simple and easy to operate.

[0013] 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. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a front view of an energy-saving control device for a central air conditioning system according to the present invention.

[0016] Figure 2 This is a bottom view of an energy-saving control device for a central air conditioning system according to the present invention;

[0017] Figure 3 This is a schematic diagram of the cleaning component structure of an energy-saving control device for a central air conditioning system according to the present invention;

[0018] Figure 4 This is a schematic cross-sectional view of the cleaning block structure of an energy-saving control device for a central air conditioning system according to the present invention.

[0019] Figure 5 This is a cross-sectional structural diagram of a collection box for an energy-saving control device used in a central air conditioning system, according to the present invention.

[0020] Legend:

[0021] 1. Fan coil unit body; 2. Water tray; 3. Coil module; 4. Cleaning assembly; 5. Electric rod; 401. Cleaning block; 402. Slider; 403. Front panel; 404. Rear panel; 405. High-pressure jet nozzle; 406. Cleaning brush; 407. Through hole; 409. Collection box; 410. Air pump; 411. Air pump; 412. Filter screen; 413. Sealing door; 414. Front air pipe; 415. Rear air pipe. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Reference Figure 1-5This utility model discloses an energy-saving control device for a central air conditioning system, comprising: a fan coil unit body 1, a water collection tray 2, and a coil module 3. The bottom of the fan coil unit body 1 is fixedly connected to the water collection tray 2. The coil module 3 is fixedly connected inside the fan coil unit body 1. A cleaning assembly 4 is provided on the coil module 3. The cleaning assembly 4 includes a cleaning block 401, a slider 402, a front plate 403, a rear plate 404, a high-pressure jet nozzle 405, a cleaning brush 406, a through hole 407, a front air pipe 414, and a rear air pipe 415. The top of the cleaning block 401 is fixedly connected to the slider 402, and the bottom of the cleaning block 401 is fixedly connected to the front plate 403 and the rear plate 404. All 04 are hollow structures. A cleaning brush 406 is fixedly connected to the inner side of the front plate 403 and the rear plate 404. The coil module 3 is located inside the cleaning brush 406. The front plate 403 is provided with through holes 407. There are multiple through holes 407, which are evenly distributed on the front plate 403. A high-pressure jet head 405 is fixedly connected to the rear plate 404. There are multiple high-pressure jet heads 405, which are evenly distributed on the rear plate 404. A front air pipe 414 is fixedly connected to the front plate 403. A rear air pipe 415 is fixedly connected to the rear plate 404. An electric rod 5 is fixedly connected to the cleaning block 401. The end of the electric rod 5 away from the cleaning block 401 is fixedly connected to the fan coil body 1.

[0026] The cleaning assembly 4 also includes a collection box 409, an air pump 410, an air pump 411, a filter screen 412, and a sealing door 413. The collection box 409 is fixedly connected to the left side wall of the fan coil unit body 1. The air pump 410 and the air pump 411 are fixedly connected to the top of the collection box 409. The filter screen 412 is fixedly connected inside the collection box 409. The sealing door 413 is provided at the bottom of the collection box 409. The collection box 409 and the sealing door 413 are rotatably connected by a hinge and fixed by a lock. The end of the front air pipe 414 away from the front plate 403 is connected to the collection box 409. The front air pipe 414 is located below the filter screen 412. The end of the rear air pipe 415 away from the rear plate 404 is connected to the collection box 409. Fixedly connected to the output end of the air pump 411, the front air pipe 414 and the rear air pipe 415 are both folded flexible hoses. When the suction pump 410 and the air pump 411 are started at the same time, the air pump 411 injects air into the rear plate 404 and sprays it out from the high-pressure jet head 405. The sprayed airflow cleans the surface of the heat exchange fins in the coil module 3. At the same time, it works with the cleaning brush 406 to clean the coil module 3. The dust that is cleaned is sucked into the collection box 409 by the suction pump 410 through the front air pipe 414 and blocked below by the filter screen 412, completing the dry cleaning of the coil module 3. When it is necessary to clean the collection box 409, the sealing door 413 can be opened to discharge the internal dust.

[0027] The top surface of the fan coil unit body 1 is provided with a sliding groove, and the slider 402 is located inside the sliding groove. When the electric lever 5 is activated, the cleaning block 401 can be pushed to move left and right inside the fan coil unit body 1 to cooperate in the cleaning operation.

[0028] Working principle: The electric rod 5, air pump 410, and air pump 411 in the device are all connected to an external controller via wires. When cleaning of the coil module 3 is required, the electric rod 5 is activated, pushing the cleaning block 401 to move left and right along the slide groove inside the fan coil unit 1. During the movement, the cleaning brush 406 cleans the surface of the coil module 3. At the same time, the air pump 410 and air pump 411 are activated. The air pump 411 injects air into the rear plate 404 and sprays it out from the high-pressure jet nozzle 405. The airflow cleans the surface of the heat exchange fins in the coil module 3, and at the same time, the cleaning brush 406 cleans the coil module 3. The dust that is cleaned off is sucked into the collection box 409 by the air pump 410 through the front air pipe 414 and blocked below by the filter screen 412, thus completing the dry cleaning of the coil module 3. When it is necessary to clean the collection box 409, the sealing door 413 can be opened to discharge the internal dust. The contents not described in detail in this specification are the prior art known to those skilled in the art.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An energy-saving control device for a central air conditioning system, comprising: A fan coil unit body (1), a water receiving tray (2), and a coil module (3) are characterized in that a water receiving tray (2) is fixedly connected to the bottom of the fan coil unit body (1), a coil module (3) is fixedly connected inside the fan coil unit body (1), a cleaning component (4) is provided on the coil module (3), the cleaning component (4) includes a cleaning block (401), a slider (402), a front plate (403), a rear plate (404), a high-pressure jet nozzle (405), a cleaning brush (406), a through hole (407), a front air pipe (414), and a rear air pipe (415), a slider (402) is fixedly connected to the top of the cleaning block (401), and the bottom of the cleaning block (401) is... The unit is fixedly connected to a front plate (403) and a rear plate (404). Both the front plate (403) and the rear plate (404) are hollow structures. A cleaning brush (406) is fixedly connected to the inner side of the front plate (403) and the rear plate (404). A through hole (407) is provided on the front plate (403). A high-pressure jet head (405) is fixedly connected to the rear plate (404). A front air pipe (414) is fixedly connected to the front plate (403). A rear air pipe (415) is fixedly connected to the rear plate (404). An electric rod (5) is fixedly connected to the cleaning block (401). The end of the electric rod (5) away from the cleaning block (401) is fixedly connected to the fan coil unit body (1).

2. The energy-saving control device for a central air conditioning system according to claim 1, characterized in that, The cleaning assembly (4) also includes a collection box (409), an air pump (410), an air pump (411), a filter screen (412), and a sealing door (413). The top of the collection box (409) is fixedly connected to the air pump (410) and the air pump (411). The inside of the collection box (409) is fixedly connected to the filter screen (412). The bottom of the collection box (409) is provided with a sealing door (413). The collection box (409) and the sealing door (413) are rotatably connected by a hinge and fixed by a lock.

3. The energy-saving control device for a central air conditioning system according to claim 1, characterized in that, The fan coil unit body (1) has a sliding groove on its inner top surface, and the slider (402) is located inside the sliding groove.

4. An energy-saving control device for a central air conditioning system according to claim 2, characterized in that, The collection box (409) is fixedly connected to the left side wall of the fan coil unit body (1).

5. An energy-saving control device for a central air conditioning system according to claim 2, characterized in that, The front air tube (414) is connected to the collection box (409) at one end away from the front plate (403), and the front air tube (414) is located below the filter screen (412).

6. An energy-saving control device for a central air conditioning system according to claim 2, characterized in that, The end of the rear air pipe (415) away from the rear plate (404) is fixedly connected to the output end of the air pump (411).

7. An energy-saving control device for a central air conditioning system according to claim 2, characterized in that, Both the front trachea (414) and the rear trachea (415) are folded flexible tubes.

Citation Information

Patent Citations

  • Energy-saving control device for central air-conditioning system

    CN218065108U