Drain device for a low-temperature air source heat pump

Abstract

The application discloses a low-temperature air source heat pump drainage device and belongs to the technical field of air source heat pump drainage. Mainly including a low-temperature air source heat pump body, the low-temperature air source heat pump body is respectively provided with an elastic component and a limiting component, and the bottom end of the low-temperature air source heat pump body is connected with a drainage chassis. The low-temperature air source heat pump drainage device is convenient for filtering defrosting water generated by the low-temperature air source heat pump body through the filter screen, the two limiting baffles are separated through opposite pushing, space is reserved for the subsequent ejection of the filter screen, the filter screen is pushed to slide and eject towards the direction of the sealing door through the elastic pushing effect of the first composite outer expansion spring, the filter screen is conveniently pulled out for cleaning or replacement, complicated installation and disassembly are not needed, the device is especially suitable for scenes where hand operation is inconvenient in low-temperature environments, the filter screen does not need to be manually picked up or lifted, and hand frostbite is avoided.

Description

Technical Field

[0001] This application relates to the field of air source heat pump drainage technology, specifically a drainage device for a low-temperature air source heat pump. Background Technology

[0002] Low-temperature air source heat pumps are devices that can absorb heat energy from the air and achieve functions such as heating and hot water supply through energy conversion. They are suitable for various scenarios that require heat supply. Their operation does not rely on the combustion of traditional fuels. They can utilize low-grade heat energy in the air to convert it into usable high-grade heat energy. They can operate in different temperature environments. Especially in low-temperature environments, through specific system design, they can maintain stable heat output to meet relevant usage needs. At the same time, they have certain advantages in energy utilization efficiency and are one of the common energy-saving and environmentally friendly heat supply devices. When a low-temperature air source heat pump operates in a low-temperature environment, condensation is easily formed on the surface of its heat exchange components due to temperature differences. At the same time, defrost water is also generated during the defrosting process. If these water bodies are not drained in time, they are likely to accumulate inside or around the equipment, which may affect the heat exchange efficiency of the heat pump. Furthermore, the water may freeze due to the low-temperature environment, thereby damaging the structural components of the heat pump and affecting the overall operational stability of the equipment. Therefore, a drainage structure needs to be set up to drain these water bodies.

[0003] An air source heat pump drainage chassis, as disclosed in application number CN202420175869.9, includes an air source heat pump body, an inspection door on one side of the air source heat pump body, an evaporator located at the top inside the air source heat pump body, a drainage chassis body located at the bottom inside the air source heat pump body, a disassembly assembly located at the top of the drainage chassis body, a filter device located in the middle inside the air source heat pump body, a clamping assembly located at one end above the filter device, and a detection device located on one side of the clamping assembly.

[0004] However, in current low-temperature air source heat pumps, the filter screen generally needs to be manually inserted into the heat pump to be removed. But if the filter screen is installed deep or has condensation on its surface, manually pulling it out is not only laborious, but may also cause frostbite due to contact with low-temperature components. The aforementioned air source heat pump drain chassis has certain shortcomings. Pulling out the drain chassis requires manual force, and moving the clamping plate requires manual turning of the handle. There is no auxiliary structure. As mentioned above, if the filter screen is installed deep or has condensation on its surface, manually pulling out the drain chassis can easily cause frostbite due to contact with low-temperature components.

[0005] Therefore, it is necessary to provide a drainage device for a low-temperature air source heat pump to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a drainage device for a low-temperature air source heat pump, which solves the problem that when the filter screen is installed deep or has condensation on its surface, manually pulling out the drainage base can easily cause frostbite due to hand contact with low-temperature components.

[0008] The technical solution adopted by this application to solve its technical problem is: a drainage device for a low-temperature air source heat pump, including a low-temperature air source heat pump body, on which elastic components and limiting components are respectively provided, a drainage base plate is connected to the inner side of the bottom end of the low-temperature air source heat pump body, a water guide plate is connected to the inner side of the bottom end of the drainage base plate, a drainage pipe is connected to the back of the low-temperature air source heat pump body, one end of the drainage pipe is connected to the back of the drainage base plate, a sealing door is hinged to the front of the low-temperature air source heat pump body through a hinge, and support plates are connected to the inner walls on both sides of the low-temperature air source heat pump body; The surface of the elastic component is connected to the inner side of the two support plates for filtering defrosting water; The surface of the limiting component is connected to the inner sides of the two support plates to limit the elastic component.

[0009] Furthermore, the elastic component includes six first composite expansion springs, a filter screen, and four sliding grooves. Every three first composite expansion springs are respectively disposed on the inner wall of the back side of each support plate. The other end of every three first composite expansion springs is connected to a push block. The two sides of the filter screen are respectively attached to the surfaces of two push blocks. The top and bottom ends of the two push blocks are connected to sliders. Every two sliding grooves are respectively opened on the inner side of each support plate.

[0010] Furthermore, the two sides of the two push blocks are respectively attached to the inner walls of the two support plates.

[0011] Furthermore, the two sides of the filter screen are slidably attached to the surfaces of the two support plates respectively.

[0012] Furthermore, the surface of each slider is slidably connected to the inner side of each groove.

[0013] Furthermore, the limiting component includes four second composite expansion springs, with each pair of second composite expansion springs respectively disposed on the inner wall of one side of each support plate, and one end of each pair of second composite expansion springs is connected to a limiting baffle.

[0014] Furthermore, the surfaces of the two limiting baffles are respectively attached to the inner walls of the two supporting plates, and the back sides of the two limiting baffles are attached to the surface of the filter screen.

[0015] The beneficial effects of this application are as follows: The drainage device for a low-temperature air source heat pump provided by this application facilitates the filtration of defrost water generated by the low-temperature air source heat pump body through a filter screen. The guiding action of the water guide plate facilitates the discharge of defrost water through the drain pipe. By moving two limiting baffles in opposite directions, they are separated to allow space for the subsequent ejection of the filter screen. The elastic pushing action of the first composite outward expansion spring facilitates the sliding ejection of the filter screen towards the sealing door, making it easy to pull out the filter screen for cleaning or replacement without cumbersome installation and disassembly. It is especially suitable for scenarios where hand operation is inconvenient in low-temperature environments, eliminating the need to manually pry or lift the filter screen and avoiding frostbite. Furthermore, when the two push blocks move the filter screen, the slider will slide inside the corresponding groove, thereby improving the stability of the sliding of the push blocks and the filter screen.

[0016] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is an overall schematic diagram of the drainage device of a low-temperature air source heat pump according to this application; Figure 2 This is an overall schematic diagram of the drainage device of a low-temperature air source heat pump according to this application; Figure 3 for Figure 2 A magnified structural diagram of A in the middle; Figure 4 for Figure 2 A magnified structural diagram of B in the diagram; Figure 5 This is one of the partial cross-sectional schematic diagrams of the drainage device of a low-temperature air source heat pump in this application; Figure 6 This is a partial schematic diagram of a drainage device for a low-temperature air source heat pump according to this application; Figure 7 This is a second partial cross-sectional schematic diagram of the drainage device of a low-temperature air source heat pump in this application; The following are the labeling elements in the figure: 1. Low-temperature air source heat pump body; 2. Elastic component; 21. First composite outward expansion spring; 22. Push block; 23. Filter screen; 24. Slider; 25. Slide groove; 3. Limiting component; 31. Second composite outward expansion spring; 32. Limiting baffle; 4. Drainage chassis; 5. Water guide plate; 6. Drain pipe; 7. Sealing door; 8. Support plate. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] like Figure 1-7 As shown, this application provides a drainage device for a low-temperature air source heat pump, including a low-temperature air source heat pump body 1. An elastic component 2 and a limiting component 3 are respectively provided on the low-temperature air source heat pump body 1. A drainage base 4 is connected to the inner side of the bottom end of the low-temperature air source heat pump body 1. A water guide plate 5 is connected to the inner side of the bottom end of the drainage base 4 to facilitate the flow of defrost water. A drain pipe 6 is connected to the back of the low-temperature air source heat pump body 1 to facilitate the discharge of defrost water. One end of the drain pipe 6 is connected to the back of the drainage base 4. A sealing door 7 is hinged to the front of the low-temperature air source heat pump body 1. Support plates 8 are connected to the inner walls on both sides of the low-temperature air source heat pump body 1. The surface of the elastic component 2 is connected to the inside of the two support plates 8 for filtering defrost water; The surface of the limiting component 3 is connected to the inner side of the two support plates 8 to limit the elastic component 2.

[0021] The elastic component 2 includes six first composite outward expansion springs 21, a filter screen 23, and four sliding grooves 25. Every three first composite outward expansion springs 21 are respectively disposed on the inner wall of the back side of each support plate 8. The other end of every three first composite outward expansion springs 21 is connected to a push block 22, which facilitates the push block 22 to bounce outward. The two sides of the filter screen 23 are respectively attached to the surfaces of two push blocks 22 to facilitate the filtering of defrosting water. The top and bottom ends of the two push blocks 22 are connected to sliders 24. Every two sliding grooves 25 are respectively opened on the inner side of each support plate 8.

[0022] The two push blocks 22 are respectively attached to the inner walls of the two support plates 8 on both sides, which helps to improve the stability of the sliding of the push blocks 22.

[0023] The two sides of the filter screen 23 slide and adhere to the surfaces of the two support plates 8 respectively, to prevent the filter screen 23 from falling off.

[0024] The surface of each slider 24 is slidably connected to the inner side of each groove 25, providing support for both the push block 22 and the filter screen 23.

[0025] The limiting component 3 includes four second composite expansion springs 31. Each pair of second composite expansion springs 31 is respectively disposed on the inner wall of one side of each support plate 8. One end of each pair of second composite expansion springs 31 is connected to a limiting baffle 32, which facilitates the limiting function of the filter screen 23 and prevents the filter screen 23 from popping out at unnecessary times.

[0026] The surfaces of the two limiting baffles 32 are respectively attached to the inner walls of the two support plates 8, and the back sides of the two limiting baffles 32 are attached to the surface of the filter screen 23, which facilitates lifting and limiting the filter screen 23.

[0027] Working principle: First, the defrosting water generated by the low-temperature air source heat pump body 1 is filtered through the filter screen 23. The filtered defrosting water enters the drain tray 4 and is finally discharged through the drain pipe 6 by the guide plate 5. When the filter screen 23 needs to be cleaned or replaced, open the sealing door 7, push the left limit baffle 32 to the left and the right limit baffle 32 to the right. At this time, space will be reserved on the sides of the two support plates 8 for the filter screen 23 to slide out. When the two limit baffles 32 separate in opposite directions, the two push blocks 22 will be pushed by the corresponding first composite expansion spring 21 to push the filter screen 23 to the front of the low-temperature air source heat pump body 1. The operator can then pull out the filter screen 23 for cleaning or replacement. The operation is simple. When the two push blocks 22 drive the filter screen 23 to slide, the corresponding slider 24 will slide inside the corresponding groove 25, thereby improving the stability of the push block 22 and the filter screen 23 during sliding.

[0028] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A drainage device for a low-temperature air source heat pump, characterized in that: The system includes a low-temperature air source heat pump body (1), on which elastic components (2) and limiting components (3) are respectively provided. A drain plate (4) is connected to the inner side of the bottom end of the low-temperature air source heat pump body (1), and a water guide plate (5) is connected to the inner side of the bottom end of the drain plate (4). A drain pipe (6) is connected to the back of the low-temperature air source heat pump body (1), and one end of the drain pipe (6) is connected to the back of the drain plate (4). A sealing door (7) is hinged to the front of the low-temperature air source heat pump body (1). Support plates (8) are connected to the inner walls on both sides of the low-temperature air source heat pump body (1). The surface of the elastic component (2) is connected to the inner side of the two support plates (8) for filtering defrosting water; The surface of the limiting component (3) is connected to the inner side of the two support plates (8) to limit the elastic component (2).

2. The drainage device for a low-temperature air source heat pump according to claim 1, characterized in that: The elastic component (2) includes six first composite expansion springs (21), a filter screen (23) and four slide grooves (25). Three first composite expansion springs (21) are respectively disposed on the inner wall of the back side of each support plate (8). The other end of each three first composite expansion springs (21) is connected to a push block (22). The two sides of the filter screen (23) are respectively attached to the surfaces of two push blocks (22). The top and bottom ends of the two push blocks (22) are connected to sliders (24). Two slide grooves (25) are respectively opened on the inner side of each support plate (8).

3. The drainage device for a low-temperature air source heat pump according to claim 2, characterized in that: The two sides of the two push blocks (22) are respectively attached to the inner walls of the two support plates (8).

4. The drainage device for a low-temperature air source heat pump according to claim 2, characterized in that: The filter screen (23) slides and adheres to the surfaces of the two support plates (8) on both sides.

5. The drainage device for a low-temperature air source heat pump according to claim 2, characterized in that: The surface of each slider (24) is slidably connected to the inside of each groove (25).

6. The drainage device for a low-temperature air source heat pump according to claim 2, characterized in that: The limiting component (3) includes four second composite expansion springs (31), each pair of second composite expansion springs (31) is respectively disposed on the inner wall of one side of each support plate (8), and one end of each pair of second composite expansion springs (31) is connected to a limiting baffle (32).

7. The drainage device for a low-temperature air source heat pump according to claim 6, characterized in that: The surfaces of the two limiting baffles (32) are respectively attached to the inner walls of the two supporting plates (8), and the back sides of the two limiting baffles (32) are attached to the surface of the filter screen (23).

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