Water pan assembly of central air conditioner

Abstract

The utility model relates to the technical field of air conditioner water pans, and discloses a central air conditioner water pan assembly which comprises a pan body, a plurality of step areas are arranged in the pan body and used for converging and filtering dripping condensate water, a blow-off pipe is arranged on the outer wall of the pan body in a penetrating mode, a light filtering ring is arranged on the outer wall of the pan body in a rotating mode, and the light filtering ring is connected with the blow-off pipe. The bottommost end of the outer wall of the light filter ring is connected with one end of a connecting rope, the other end of the connecting rope is connected with a floating ball, the outer wall of the light filter ring is connected with the outer wall of the disc body through a filter screen, and the light filter ring and the filter screen can cover the water inlet of the blow-off pipe in an unfolded state. According to the utility model, through a linkage mechanism of the floating ball valve and the light filter ring, intelligent water level management, automatic drainage for preventing overflow, safety improvement and reduction of manual intervention requirements are realized, and meanwhile, the filter plate is arranged to effectively block dirt, keep water clean and reduce cleaning workload.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning water receiving pans, in particular to a central air-conditioning water receiving pan assembly. Background Art

[0002] The widespread use of central air conditioning systems in modern buildings has significantly improved indoor comfort and air quality. As building sizes expand and the demand for a more comfortable environment increases, the performance and efficiency of central air conditioning systems have become crucial considerations in design and construction. However, as a key component of central air conditioning systems, the drain pan assembly still suffers from numerous design and functional deficiencies, impacting the overall reliability and safety of the system.

[0003] Existing drain pan assemblies typically utilize a traditional drainage design that lacks effective water level monitoring and management mechanisms. This design is prone to problems with condensate accumulation, especially under high-load conditions. The drain pan can quickly fill up, leading to overflow. This not only damages the indoor environment but can also affect the normal operation of surrounding equipment and pose potential safety hazards, such as moisture exposure to electrical equipment and structural damage.

[0004] Furthermore, many drain pans lack effective filtration, making them susceptible to clogging due to the accumulation of dust, debris, and other materials. This clogging significantly reduces water flow efficiency, increases system maintenance frequency, and increases operating costs and the need for manual intervention. In some high-rise buildings or large commercial spaces, frequent checks on the drain pans can be challenging, further increasing the risk. Utility Model Content

[0005] In order to make up for the above deficiencies, the present invention provides a central air-conditioning water receiving pan assembly, which aims to improve the problems of water level management and clogging risk of the water receiving pan assembly in the prior art.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] It includes a disc body, which is provided with multiple stepped areas for converging and filtering dripping condensed water. A sewage pipe is penetrated by the outer wall of the disc body, and a lightweight filter ring is rotated on the outer wall of the disc body. The bottom end of the outer wall of the lightweight filter ring is connected to one end of a connecting rope, and the other end of the connecting rope is connected to a float. The outer wall of the lightweight filter ring and the outer wall of the disc body are connected by a filter net. The lightweight filter ring and the filter net can cover the water inlet of the sewage pipe when they are in the expanded state.

[0008] Furthermore, the multiple stepped areas include a water collection area, step area one, step area two and step area three, and the water collection area, step area one, step area two and step area three are arranged in sequence in the disk body. The water collection area is connected to the sewage pipe, and the water collection area, step area one, step area two and step area three are separated by multiple filter partitions.

[0009] Furthermore, the bottoms of the step area 1, the step area 2 and the step area 3 are all provided with inclined surfaces, and the inclination angles of the inclined surfaces at the bottoms of the step area 1, the step area 2 and the step area 3 increase successively.

[0010] Furthermore, the stair area 1, stair area 2 and stair area 3 are arranged below the central air-conditioning evaporator or condenser.

[0011] Furthermore, groove seats are installed on both sides of the lower surface of the disk body, a foam layer is provided under the disk body, and a groove protrusion matching the groove seat is provided on the upper surface of the foam layer. The groove protrusion is provided on the inner wall of the groove seat through an adhesive layer.

[0012] Furthermore, the groove at the bottom of the groove seat can be set to any one of the shapes of trapezoid, rectangle, wedge or triangle, and its inner wall is provided with a protrusion for increasing the bonding force between the foam layer and the groove seat.

[0013] Furthermore, the protrusion may be configured to be in any shape of a trapezoid, a rectangle, a wedge or a triangle.

[0014] Furthermore, the filter pore size of the filter mesh is larger than the filter pore size of the lightweight filter ring.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the present invention, by designing multiple trapezoidal areas, water droplets can flow in layers. Each layer has an inclined surface to guide the water to the lowest collection area, making the water flow smoother and avoiding the water retention phenomenon caused by unreasonable design in the traditional water receiving tray, thereby reducing the risk of corrosion and bacterial growth caused by accumulated water, and ensuring the dryness and hygiene of the water receiving system.

[0017] 2. In the present invention, the design of filter plates in multiple trapezoidal areas can effectively block sticky dirt and impurities, preventing all of these impurities from gathering in the collection area, which not only maintains the cleanliness of the water quality, but also helps to reduce the workload of subsequent cleaning and improve the overall efficiency of the system.

[0018] 3. In this utility model, intelligent water level management is achieved through the linkage mechanism of the float valve and the lightweight filter ring. When the water level reaches the set threshold, the float automatically rises to trigger the filter ring to open, quickly draining the accumulated water and avoiding the risk of overflow. This automated design not only improves the safety of use, but also effectively reduces the need for manual intervention, making it suitable for use in unmanned environments.

[0019] 4. In the present invention, the plug-in design between the bottom groove seat and the foam layer, as well as a small amount of adhesive layer, further strengthens the fixation. Compared with the traditional method of fixing by applying adhesive all over the body, it can bring many advantages in terms of structural stability, maintenance convenience, adaptability, reliability and cost-effectiveness. It not only improves the overall performance of the system, but also provides greater flexibility for subsequent maintenance and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of a central air-conditioning water tray assembly proposed by the present invention;

[0021] Figure 2 This is an internal cross-sectional view of a central air-conditioning water tray assembly proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the bottom structure of a central air-conditioning water tray assembly proposed by the present invention;

[0023] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of a floating ball of a central air-conditioning water tray assembly proposed by the present invention;

[0025] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0026] Figure 7 for Figure 3 Enlarged view of point C in the middle;

[0027] Figure 8 This is a schematic diagram of the raised portion structure of a central air-conditioning water receiving pan assembly proposed by the present invention.

[0028] Legend:

[0029] 1. Disc; 2. Drain pipe; 3. Lightweight filter ring; 4. Filter screen; 5. Connecting rope; 6. Float; 7. Water collection area; 8. Ladder area 1; 9. Ladder area 2; 10. Ladder area 3; 11. Filter baffle; 12. Inclined surface; 13. Groove seat; 1301, raised portion; 14. Adhesive layer; 15. Foam layer; 16. Groove raised portion. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figures 1-6 The utility model provides an embodiment: it includes a disc body 1, and a plurality of stepped areas are arranged in the disc body 1, which are used to converge and filter the dripping condensed water. A sewage pipe 2 is penetrated by the outer wall of the disc body 1, and a lightweight filter ring 3 is rotated on the outer wall of the disc body 1. The lowest end of the outer wall of the lightweight filter ring 3 is connected to one end of the connecting rope 5, and the other end of the connecting rope 5 is connected to the float 6. The outer wall of the lightweight filter ring 3 and the outer wall of the disc body 1 are connected by a filter screen 4. The lightweight filter ring 3 and the filter screen 4 can cover the water inlet of the sewage pipe 2 when they are expanded.

[0032] The filter pore size of the filter screen 4 is larger than the filter pore size of the lightweight filter ring 3 .

[0033] Specifically, the water entering the water collection area 7 for discharge will be filtered in advance by the rest of the stage area, which ensures that most impurities are filtered out in advance, and the water entering the water collection area 7 is relatively clean water. Subsequently, during daily use, the water will pass through the filter area on the lightweight filter ring 3 and enter the sewage pipe 2 for discharge. However, when used for a long time, it is inevitable that external impurities will fall into the water collection area 7, but they will be filtered by the lightweight filter ring 3. As time accumulates or the central air-conditioning evaporator or condenser produces a large amount of water, the float in the water collection area 7 will 6. As the float 6 rises, the connecting rope 5 is pulled. When the float 6 reaches the overflow water level threshold height, the connecting rope 5 pulls the lightweight filter ring 3 to lift up, and the filter screen 4 is unfolded synchronously. At this time, water will be discharged into the sewage pipe 2 through the large filter holes on the bottom filter screen 4. The water level drops, the float 6 drops, the pulling force of the connecting rope 5 is weakened, and the lightweight filter ring 3 gradually resets, waiting for the next time the float 6 reaches the overflow water level threshold height to be lifted up again. This not only ensures that the sewage pipe 2 will not be blocked by dirt, but also, under the action of the float 6, plays an overflow prevention role through the traction mechanism.

[0034] Reference Figure 1-Figure 2 The multiple stepped areas include a water collection area 7, terrace area 1 8, terrace area 2 9 and terrace area 3 10. The water collection area 7, terrace area 1 8, terrace area 2 9 and terrace area 3 10 are arranged in sequence in the disk body 1. The water collection area 7 is connected to the sewage pipe 2. The water collection area 7, terrace area 1 8, terrace area 2 9 and terrace area 3 10 are separated by multiple filter partitions 11.

[0035] The bottoms of the step area 1 8 , the step area 2 9 and the step area 3 10 are all provided with inclined surfaces 12 , and the inclination angles of the inclined surfaces 12 at the bottoms of the step area 1 8 , the step area 2 9 and the step area 3 10 increase successively.

[0036] Stair area 1 8, stair area 2 9 and stair area 3 10 are arranged below the central air-conditioning evaporator or condenser.

[0037] Specifically, when using the water collection tray assembly, it is necessary to place step area 1 8, step area 2 9 and step area 3 10 below the central air-conditioning evaporator or condenser during installation. At this time, the water collection area 7 does not need to be placed below the central air-conditioning evaporator or condenser to directly collect water. During use, the water condensed on the central air-conditioning evaporator or condenser forms water droplets that directly drip into any area of ​​step area 1 8, step area 2 9 and step area 3 10, and then slide toward the water collection area 7 through the inclined surface 12 at the bottom. During this process, it will be filtered through the middle filter partition 11 to ensure that the water that initially enters the water collection area 7 will not carry large dirt into the water collection area 7, further ensuring the cleanliness of the water in the water collection area 7 and ensuring that the overflow prevention mechanism can operate smoothly.

[0038] Reference Figure 3 、 Figure 7 and Figure 8 Groove seats 13 are installed on both sides of the lower surface of the disk body 1, a foam layer 15 is provided under the disk body 1, and a groove protrusion 16 matching the groove seat 13 is provided on the upper surface of the foam layer 15. The groove protrusion 16 is arranged on the inner wall of the groove seat 13 through the adhesive layer 14.

[0039] The groove at the bottom of the groove seat 13 can be set to any shape of trapezoid, rectangle, wedge or triangle, and its inner wall is provided with a protrusion 1301 for increasing the bonding force between the foam layer 15 and the groove seat 13.

[0040] The protrusion 1301 may be configured in any shape of a trapezoid, a rectangle, a wedge or a triangle.

[0041] Specifically, the two groove seats 13 provided at the bottom of the tray body 1 match the groove protrusions 16 on the foam layer 15. Adhesive is directly applied to the surface of the groove protrusions 16, which are then brought into contact with the inner wall of the groove seat 13 and brought into contact with the dry bond. At this point, the bottom foam layer 15 is installed. If the foam layer 15 needs to be replaced during subsequent maintenance, it is only necessary to separate the groove protrusions 16 from the groove seat 13. This speeds up disassembly and reduces the amount of adhesive. Protrusions 1301 provided on the inner wall of the groove seat 13 can further enhance the bonding strength of the adhesive layer 14.

[0042] Working principle: When using the water tray assembly, it is necessary to place step area 1 8, step area 2 9 and step area 3 10 below the central air-conditioning evaporator or condenser during installation. At this time, the water collection area 7 does not need to be placed below the central air-conditioning evaporator or condenser to directly collect water. During use, the water condensed on the central air-conditioning evaporator or condenser forms water droplets that directly drip into any of the step areas 1 8, step area 2 9 and step area 3 10. They will then slide toward the water collection area 7 through the inclined surface 12 at the bottom. During this process, they will be filtered through the middle filter partition 11 to ensure that the water that initially enters the water collection area 7 will not carry large dirt into the water collection area 7, and then accumulate over time and gather in the water collection area In daily life, the water in 7 will pass through the filter mesh in the middle of the lightweight filter ring 3 and enter the sewage pipe 2 and be discharged from the pipe. When the amount of water in the water collection area 7 is too large, and the filter mesh holes on the lightweight filter ring 3 are blocked to a certain extent but not completely blocked, water can still flow through, but the flow rate is slow and the accumulated water cannot be discharged quickly. At this time, as the water level in the water collection area 7 rises, the float 6 will rise synchronously and stretch the connecting rope 5. When the float 6 reaches the overflow threshold water level, the float 6 will pull the lightweight filter ring 3 to lift up and the filter mesh 4 will be unfolded synchronously. Since the filter mesh 4 holes are larger than the filter mesh pores of the lightweight filter ring 3, water will flow quickly into the sewage pipe 2 through the filter mesh 4. At this time, the water level drops, the float drops, the lightweight filter ring 3 resets, and continues to filter slowly. Two groove seats 13 are set at the bottom of the tray body 1, which match 16 on the foam layer 15. The adhesive is directly applied to the surface of 16, and then it is brought into contact with the inner wall of the groove seat 13 and brought into contact with the dry knot. At this time, the bottom foam layer 15 is installed. In the subsequent maintenance process, if the foam layer 15 needs to be replaced, it is only necessary to separate 16 from the groove seat 13. The disassembly is quick and the adhesive material is also reduced.

[0043] Finally, it should be noted that the above are only preferred embodiments of the present invention and are 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 replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A central air conditioning water receiving tray assembly, comprising a tray body (1), characterized in that: The disc (1) is provided with a plurality of stepped areas for converging and filtering dripping condensed water. A sewage pipe (2) is penetrated through the outer wall of the disc (1). A lightweight filter ring (3) is rotated on the outer wall of the disc (1). The bottom end of the outer wall of the lightweight filter ring (3) is connected to one end of a connecting rope (5), and the other end of the connecting rope (5) is connected to a float (6). The outer wall of the lightweight filter ring (3) and the outer wall of the disc (1) are connected through a filter screen (4). The lightweight filter ring (3) and the filter screen (4) can cover the water inlet cover of the sewage pipe (2) when they are in an open state.

2. A central air conditioning water tray assembly according to claim 1, characterized in that: The multiple stepped areas include a water collection area (7), a step area 1 (8), a step area 2 (9) and a step area 3 (10), wherein the water collection area (7), the step area 1 (8), the step area 2 (9) and the step area 3 (10) are sequentially arranged in the disk body (1), the water collection area (7) is connected to the sewage pipe (2), and the water collection area (7), the step area 1 (8), the step area 2 (9) and the step area 3 (10) are separated by multiple filter partitions (11).

3. A central air conditioning water tray assembly according to claim 2, characterized in that: The bottoms of the step area 1 (8), the step area 2 (9) and the step area 3 (10) are all provided with inclined surfaces (12), and the inclined angles of the inclined surfaces (12) at the bottoms of the step area 1 (8), the step area 2 (9) and the step area 3 (10) increase successively.

4. A central air conditioning water tray assembly according to claim 2, characterized in that: The stair area 1 (8), stair area 2 (9) and stair area 3 (10) are arranged below the central air-conditioning evaporator or condenser.

5. The central air conditioning water tray assembly according to claim 1, characterized in that: Grooved seats (13) are installed on both sides of the lower surface of the disc body (1), a foam layer (15) is provided below the disc body (1), and a groove protrusion (16) matching the groove seat (13) is provided on the upper surface of the foam layer (15), and the groove protrusion (16) is provided on the inner wall of the groove seat (13) through an adhesive layer (14).

6. A central air conditioning water tray assembly according to claim 5, characterized in that: The bottom groove of the groove seat (13) can be configured to be any one of a trapezoidal, rectangular, wedge-shaped or triangular shape, and a protrusion (1301) is provided on its inner wall for increasing the bonding force between the foam layer (15) and the groove seat (13).

7. A central air conditioning water tray assembly according to claim 6, characterized in that: The protrusion (1301) can be configured to be in any shape of a trapezoid, a rectangle, a wedge or a triangle.

8. The central air conditioning water tray assembly according to claim 1, characterized in that: The filter pore size of the filter screen (4) is larger than the filter pore size of the lightweight filter ring (3).

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