Water level switch mounting structure for a flat knitting machine water pan
By installing a water level switch on the side wall of the drainage area and setting up a buckle, reinforcing ribs and an observation hole, the problem of needing to stop the machine for water level switch maintenance in the existing technology is solved, realizing convenient water level switch maintenance and replacement, and improving the ease of use of the ceiling machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHANGHONG AIR CONDITIONER CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-28
AI Technical Summary
The water level switch of the existing ceiling-mounted air conditioner is installed in the water storage area, which requires the machine to be stopped and the water tray to be removed during maintenance, increasing the difficulty of maintenance and affecting normal use.
The water level switch is installed on the side wall of the drainage area and fixed with clips and reinforcing ribs. A wire guide groove and a wire passage groove are set for the water level switch, and an observation hole is set on the water pump mounting plate to enable convenient maintenance when the ceiling machine is in operation.
This allows for convenient maintenance and replacement of the water level switch without affecting the normal operation of the ceiling-mounted air conditioning unit, improving maintenance efficiency and convenience.
Smart Images

Figure CN224567588U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ceiling-mounted air conditioners, and in particular to a water level switch installation structure for a ceiling-mounted air conditioner's water receiving tray. Background Technology
[0002] Ceiling-mounted units are a common form of embedded central air conditioning. Their core feature is concealed airflow through ceiling installation, balancing space utilization and aesthetics. In ceiling-mounted units, the condensate tray is installed below the evaporator to collect and drain condensate generated during operation. The portion of the tray used to collect condensate is called the water storage area, and the portion used to drain condensate is called the drainage area. The vast majority of the tray is in the water storage area, while the drainage area occupies only a small portion and is located at the corner of the tray. The drainage area is connected to the water storage area, but it is lower and located to the side of the water storage area. Therefore, the condensate collected in the water storage area flows naturally under gravity and converges in the drainage area, where it is then pumped away. To monitor the condensate drainage status in the water storage area, existing ceiling-mounted units include a water level switch within the storage area. When the condensate in the water storage area is not drained properly, causing the condensate level in the water storage area to rise to a certain level, the water level switch in the water storage area will trigger an alarm, causing the ceiling machine to stop operating.
[0003] To ensure the water level switch functions properly, it requires regular maintenance. However, the current design, which places the water level switch within the water storage area, necessitates shutting down the ceiling-mounted air conditioning unit and removing the drip tray before maintenance can be performed. This undoubtedly affects the normal operation of the unit and significantly increases the difficulty of water level switch maintenance. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a water level switch installation structure for a ceiling-mounted machine water receiving tray that makes the maintenance of water level switches more convenient.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a water level switch installation structure for a ceiling-mounted water receiving tray, including a water receiving tray and a water level switch. The water receiving tray includes a water storage area and a drainage area connected to the water storage area. The drainage area is located at a lower height than the water storage area and is set to the side of the water storage area. A water pump is installed in the drainage area. The structure includes a water level switch fixing structure, which is fixedly installed in the drainage area. The water level switch is fixedly installed on the water level switch fixing structure to detect the water level in the drainage area.
[0006] Furthermore, the water level switch fixing structure includes a buckle, which is fixedly installed on the inner side wall of the drainage area side wall, and the water level switch is fixedly installed on the buckle by a fastening nut.
[0007] Furthermore, the water level switch fixing structure includes reinforcing ribs, which are fixedly installed on the outer side wall of the drainage area, and the buckles are fixedly connected to the reinforcing ribs.
[0008] Furthermore, the water level switch fixing structure includes a water level switch wire fixing groove, which is set on the side wall of the drainage area and is used to fix the connecting wire of the water level switch.
[0009] Furthermore, the water level switch fixing structure includes a water level switch cable tray, which is located at the bottom of the drainage area.
[0010] Furthermore, the reinforcing ribs extend vertically, and there are two reinforcing ribs. The water level switch fixing groove and the water level switch through groove are located between the straight lines where the reinforcing ribs are located.
[0011] Furthermore, the system includes a water pump mounting plate with an observation hole that connects the drainage area to the outside. The drainage area is located within an installation cavity formed by the water pump mounting plate and the surrounding plate of the water storage area. The water pump mounting plate and the surrounding plate are detachably connected.
[0012] Furthermore, the water pump mounting plate is attached to the enclosure with screws.
[0013] Furthermore, manual drainage holes are provided at the bottom of the drainage area.
[0014] Furthermore, the water pump is located between the water level switch and the water storage area.
[0015] The beneficial effects of this utility model are: 1. Taking into account the location characteristics of the water storage area and drainage area of the water receiving pan, the water level switch is set in the drainage area through a water level switch fixing structure. This not only allows the water level switch to detect the condensate level in the drainage area and ensure the alarm function of the water level switch, but also, since the drainage area is located at the corner of the water receiving pan, when it is necessary to test the water level switch, only the corner of the drainage area needs to be tested, without affecting the water storage area. Thus, the water level switch can be inspected and maintained while the ceiling machine is working.
[0016] Second, by setting corresponding buckles and reinforcing ribs on the side wall of the drainage area, the structural stability of the water level switch when it is installed on the side wall of the drainage area is ensured. At the same time, the water level switch can be easily removed or installed during subsequent maintenance.
[0017] Third, by setting up water level switch cable trays and water level switch cable passage trays on the side wall of the drainage area, the arrangement of the water level switch connection lines is ensured, and the maintenance and replacement of the water level switch are also facilitated.
[0018] Fourth, by setting observation holes on the water pump mounting plate, it is much more convenient to observe the operating status of water pumps and water level switches in the drainage area, and it also provides a reference for the maintenance of water pumps and water level switches.
[0019] 5. The water pump mounting plate and the enclosure are detachably connected, allowing the water pump mounting plate to be removed when the water level switch needs to be inspected, thus enabling quick inspection of the water level switch; after inspection, the water pump mounting plate can be quickly installed back onto the enclosure, and the entire inspection process will not affect the normal operation of the ceiling machine.
[0020] This invention is particularly applicable to ceiling-mounted water receiving trays. Attached Figure Description
[0021] Figure 1 This is a schematic diagram showing the positional relationship between the water storage area and the drainage area of the water receiving tray in this utility model.
[0022] Figure 2 This is a schematic diagram of the drainage zone reinforcing ribs and the water level switch fixing groove of this utility model.
[0023] Figure 3 yes Figure 2 A magnified view from direction A.
[0024] Figure 4 This is a schematic diagram showing the positional relationship between the water pump and the water level switch in the drainage area of this utility model.
[0025] Figure 5 This is a schematic diagram of the installation cavity formed by the water pump mounting plate and the surrounding plate of this utility model.
[0026] The markings in the diagram are as follows: water storage area 1, water receiving tray 3, drainage area 4, manual drainage hole 41, water level switch cable tray 42, water pump cable tray 43, water level switch 5, buckle 51, water level switch cable tray 52, reinforcing rib 53, water pump 6, enclosure 7, water pump mounting plate 71, observation hole 72. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings.
[0028] like Figures 1 to 5 The diagram shows the water level switch installation structure of the ceiling-mounted air conditioner's water receiving tray. Functionally, the water receiving tray 3 is mainly divided into a water storage area 1 and a drainage area 4. (The diagram is incomplete and requires further context.) Figure 1 and Figure 2As shown, water storage area 1 is generally a ring-shaped water tank with its opening facing upwards to collect condensate dripping from the ceiling-mounted evaporator above it. After collecting the condensate dripping from water storage area 1, the water flows uniformly to drainage area 4. Figure 1 As shown, the drainage area 4 is located at the lower left corner of the water storage area 1. In actual use, the water receiving tray 3 is set horizontally, and the position of the drainage area 4 is lower than the position of the water storage area 1. The drainage area 4 is connected to the water storage area 1. Therefore, the condensate in the water storage area 1 can flow naturally into the drainage area 4 under the action of gravity.
[0029] like Figures 2 to 4 As shown, drainage zone 4 is a water tank structure that can accommodate condensate. Specifically, drainage zone 4 includes a bottom and side walls, which together form an open water tank structure. A manual drain hole 41 is provided at the bottom of drainage zone 4, allowing maintenance personnel to manually drain the condensate quickly in case of pump 6 failure. Pump 6 is installed inside drainage zone 4 to drain the condensate. A water level switch 5 is located on the side wall of drainage zone 4. Figure 4 As shown, the water pump 6 is located between the water level switch 5 and the enclosure 7 on the side wall of the water storage area 1, which means that the water level switch 5 is located at the extreme position of the drainage area 4 away from the water storage area 1. This allows for more operating space for the water level switch 5, making it easier for subsequent maintenance and replacement of the water level switch 5.
[0030] like Figure 3 The diagram shows a water level switch fixing structure for fixing the water level switch 5 to the side wall of the drainage area 4. The fixing structure includes a clip 51. The clip 51 is a connecting plate structure with a bayonet. The clip 51 is disposed on the inner wall surface of the side wall of the drainage area 4, perpendicular to the inner wall surface. After the threaded connecting rod at the top of the water level switch 5 is placed in the bayonet of the clip 51, the threaded connecting rod and the water level switch 5 are fixed to the clip 5 using a corresponding nut, ensuring that the water level switch 5 is located within the drainage area 4, thereby allowing the water level switch 5 to monitor the water level of the condensate in the drainage area 4.
[0031] like Figure 3As shown, the outer wall of the drainage area 4 is provided with two vertically extending reinforcing ribs 53. Specifically, the reinforcing ribs 53 and clips 51 are respectively located on the outer and inner sides of the side wall of the drainage area 4 at the extreme position away from the water storage area 1. The reinforcing ribs 53 and clips 51 are connected as a single structure and are fixedly installed on the side wall of the drainage area 4. A water level switch cable tray 52 is provided between the two reinforcing ribs 53. The water level switch cable tray 52 is located at the top of the side wall of the drainage area 4 and is used to secure the connecting wires of the water level switch 5. Furthermore, a water level switch cable tray 42 is provided on the side wall of the drainage area 4 below the water level switch cable tray 52 to bend and store the connecting wires of the aforementioned water level switch 5 to the bottom of the drainage area 4. Figure 3 As shown, the water level switch cable tray 52 and the water level switch cable passage tray 42 are located in the area between the two straight lines extending from the two reinforcing ribs 53, thereby allowing for a more compact arrangement of the water level switch cable tray 52, the water level switch cable passage tray 42, and the connecting wires of the water level switch 5. Figure 1 As shown, a water pump cable tray 43 can also be provided on the side wall of the drainage area 4. The water pump cable tray 43 extends vertically and is used to house the connecting wires of the water pump 6.
[0032] like Figure 4 and Figure 5 As shown, after the installation of the water level switch 5 and water pump 6 in the drainage area 4 is completed, the water pump mounting plate 71 is fixed to the outer wall enclosure 7 of the water storage area 1 with screws. The structure of the water pump mounting plate 71 can be a baffle formed by bending. The drainage area 4 is located in the mounting cavity formed by the water pump mounting plate 71 and the enclosure 7 of the water storage area 1. The water pump mounting plate 71 can protect the water level switch 5 and water pump 6 in the drainage area 4 from external interference when no maintenance is required. When maintenance is required, it is only necessary to unscrew the screws between the water pump mounting plate 71 and the outer wall enclosure 7 of the water storage area 1. An observation hole 72 is provided on the water pump mounting plate 71, which connects the drainage area 4 to the outside. Through the observation hole 72, maintenance personnel can easily observe the status of the condensate, water level switch 5, and water pump 6 in the drainage area 4, greatly improving maintenance efficiency.
Claims
1. A water level switch installation structure for a ceiling-mounted water receiving tray, comprising a water receiving tray (3) and a water level switch (5), wherein the water receiving tray (3) comprises a water storage area (1) and a drainage area (4) connected to the water storage area (1), the drainage area (4) being lower in height than the water storage area (1), the drainage area (4) being located to the side of the water storage area (1), and a water pump (6) being installed in the drainage area (4), characterized in that: It includes a water level switch fixing structure, which is fixedly installed in the drainage area (4), and the water level switch (5) is fixedly installed on the water level switch fixing structure to detect the water level in the drainage area (4).
2. The water level switch installation structure for the ceiling-mounted water receiving tray as described in claim 1, characterized in that: The water level switch fixing structure includes a buckle (51), which is fixedly installed on the inner side wall of the drainage area (4). The water level switch (5) is fixedly installed on the buckle (51) by a fastening nut.
3. The water level switch installation structure for the ceiling-mounted water receiving tray as described in claim 2, characterized in that: The water level switch fixing structure includes a reinforcing rib (53), which is fixedly installed on the outer side wall of the drainage area (4), and the buckle (51) is fixedly connected to the reinforcing rib (53).
4. The water level switch installation structure for the ceiling-mounted water receiving tray as described in claim 3, characterized in that: The water level switch fixing structure includes a water level switch wire fixing groove (52), which is set on the side wall of the drainage area (4). The water level switch wire fixing groove (52) is used to fix the connecting wire of the water level switch (5).
5. The water level switch installation structure for the ceiling-mounted water receiving tray as described in claim 4, characterized in that: The water level switch fixing structure includes a water level switch cable tray (42), which is located at the bottom of the drainage area (4).
6. The water level switch installation structure for the ceiling-mounted water receiving tray as described in claim 5, characterized in that: The reinforcing rib (53) extends vertically and consists of two ribs. The water level switch fixing groove (52) and the water level switch through groove (42) are located between the straight lines where the reinforcing rib (53) is located.
7. The water level switch installation structure for the ceiling-mounted water receiving tray as described in any one of claims 1 to 6, characterized in that: Includes a water pump mounting plate (71), on which an observation hole (72) is provided. The observation hole (72) connects the drainage area (4) to the outside. The drainage area (4) is located in the mounting cavity formed by the water pump mounting plate (71) and the surrounding plate (7) of the water storage area (1). The water pump mounting plate (71) and the surrounding plate (7) are detachably connected.
8. The water level switch installation structure for the ceiling-mounted water receiving tray as described in any one of claims 1 to 6, characterized in that: The water pump mounting plate (71) is mounted on the enclosure plate (7) by screws.
9. The water level switch installation structure for the ceiling-mounted water receiving tray as described in any one of claims 1 to 6, characterized in that: The bottom of the drainage area (4) is equipped with a manual drainage hole (41).
10. The water level switch installation structure for the ceiling-mounted water receiving tray as described in any one of claims 1 to 6, characterized in that: The water pump (6) is located between the water level switch (5) and the water storage area (1).