A condensate drainage structure for an air source heat pump

Abstract

This utility model belongs to the field of air source heat pump technology, specifically an air source heat pump condensate drainage structure. It includes a rotating shaft, with a drainage base mounted on one end of the shaft. A movable rod is mounted inside the mounting base via a pin. A ball bearing is movably mounted inside a groove, and a cylinder is mounted on the top side of the ball bearing. A circular block is mounted on one end of the movable rod, and a spring is fixed between the circular block and the bottom of the cylinder. A drain pipe is connected to the other side of the drainage base. When condensate accumulates, the increased weight of the drainage base puts pressure on the movable rod, compressing the spring and causing one end of the drainage base to sink, ensuring sufficient water storage. As condensate is continuously drained, the weight of the water on the base decreases, and the compressed spring releases its elastic potential energy, pushing the circular block upwards. The drainage base returns to a certain tilt angle, allowing condensate to slowly flow into the drain pipe along the tilted surface. This achieves a dynamic balance between the tilted drainage and water storage functions of the drainage base, improving drainage efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air source heat pump technology, specifically an air source heat pump condensate drainage structure. Background Technology

[0002] During the operation of an air source heat pump, when the evaporator temperature is lower than the dew point temperature of the surrounding air, water vapor in the air will condense into liquid water on the surface of the evaporator. This is condensate. If the condensate cannot be drained in time, it will accumulate on the surface of the evaporator or other components. Long-term water accumulation may cause the equipment components to rust. Therefore, a drainage structure is required.

[0003] A Chinese patent with authorization announcement number CN219433527U discloses an air source heat pump drainage chassis, including a heat source pump main unit, an evaporator inside the heat source pump main unit, and a drainage chassis below the evaporator for collecting defrosting water generated by the evaporator. A filter device is detachably installed inside the heat source pump main unit, and an operating door is movably installed on one side of the heat source pump main unit for installing or removing the filter device. The filter device can be installed or removed through the operating door. Since the operating door is located on the side of the heat source pump main unit, it is not necessary to disassemble the entire drainage chassis when disassembling and installing the filter plate.

[0004] However, the above-mentioned drainage chassis still has some problems. In practical applications, the drainage chassis is not inclined, and condensate is prone to accumulate in the chassis and cannot flow naturally to the drain outlet by gravity. This will cause water accumulation inside the drainage chassis and result in poor drainage. Therefore, an air source heat pump condensate drainage structure is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes an air source heat pump condensate drainage structure.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The air source heat pump condensate drainage structure of this utility model includes an air source heat pump housing. Two support plates are symmetrically installed on one end of the bottom inner wall of the air source heat pump housing. A rotating shaft is rotatably installed inside each support plate. A drainage base is installed at one end of each rotating shaft. A mounting seat is installed on one side of the drainage base. A movable rod is installed inside the mounting seat via a pin. A groove is formed inside the air source heat pump housing, and a ball bearing is movably installed inside the groove. A cylinder is installed on the top side of the ball bearing. One end of the movable rod passes through the inside of the cylinder and is fitted with a circular block. A spring is fixed between the circular block and the bottom side of the cylinder. A drain pipe is connected to the other side of the drain base. One end of the drain pipe is a flexible hose, and the other end is a rigid pipe. The other end of the drain pipe passes through one side of the air source heat pump housing and extends to its outside. This allows for an inclined setting of the drain base and ensures sufficient water storage capacity. It also helps condensate flow quickly to the drain pipe, improving drainage efficiency and preventing condensate from accumulating on the drain base.

[0007] Preferably, two exhaust fans are symmetrically installed inside the top side of the air source heat pump housing, an installation plate is installed on the inner wall of the top of the air source heat pump housing, the installation plate has several water passage holes, and an evaporator is installed on the top side of the installation plate to ensure normal flow of condensate and help improve heat exchange efficiency.

[0008] Preferably, a fixing frame is installed on the inner wall of the middle section of the air source heat pump housing. Two sliding grooves are symmetrically opened inside the fixing frame. Sliding strips are slidably installed in the sliding grooves. A filter plate is installed between the sliding strips. The filter plate can filter the condensate, remove impurities, and prevent impurities from entering subsequent pipes or equipment, thus affecting the normal operation of the equipment.

[0009] Preferably, a sleeve is installed on the outer side of the middle section of the air source heat pump housing. A sliding rod is slidably installed inside one side of the sleeve. A rod hole is opened at one end of the fixed frame inside one side of the air source heat pump housing. A circular groove is opened inside one side of the fixed frame. An electromagnet is installed at one end of the sliding rod, which passes through the rod hole and extends into the circular groove. An iron block is installed on one side of the filter plate. A connecting block is installed at the other end of the sliding rod. A tension spring is fixed between the connecting block and the sleeve. The tension spring is sleeved on the outside of the sliding rod. An electrode plate is installed on one side of the connecting block. An electrode sheet is installed inside one side of the sleeve. An indicator light is installed on one side of the air source heat pump housing. When the electromagnet is energized, it will attract the iron block, thereby fixing the filter plate on the fixed frame and preventing the filter plate from moving under the impact of condensate water flow, thus ensuring the filtration effect. When the filter plate needs to be moved, the electromagnet power supply can be disconnected.

[0010] Preferably, a guide plate is installed on the inner wall of the air source heat pump housing at the bottom side of the filter plate, and a movable door is installed on one bottom side of the air source heat pump housing through a hinge. A handle is installed on one side of the movable door. The guide plate can guide the filtered condensate to a suitable position to facilitate subsequent drainage and to facilitate opening the movable door to clean the filter plate and inspect the drainage base.

[0011] Preferably, a control panel is installed on one side of the air source heat pump housing. The electrode plates, electrode sheets, indicator lights, and power supply are connected by a circuit. The indicator lights are connected to the control panel via signal lines. The control panel is used to operate and control the electromagnet. The control panel is also electrically connected to other electrical components inside the structure, enabling centralized control and improving operational convenience and equipment automation.

[0012] The advantages of this utility model are:

[0013] 1. When condensate accumulates, the increased gravity on one side of the drainage base puts pressure on the movable rod, compressing the spring and causing one end of the drainage base to sink, thus ensuring the water storage capacity of the drainage base. As the condensate is continuously discharged, the weight of the water accumulated on the base is reduced, and the compressed spring releases its elastic potential energy, pushing the circular block upward. The drainage base returns to a certain tilt angle, and the condensate can still slowly flow into the drain pipe along the tilted surface. In this way, a dynamic balance between the tilting drainage and water storage functions of the drainage base is achieved, improving drainage efficiency.

[0014] 2. During installation, align the filter plate slide bar with the slide groove, push the filter plate into the slide groove, and the iron block will contact the electromagnet. Continue pushing the filter plate, and the slide rod will slide inside the sleeve, stretching the tension spring. The connecting block will drive the electrode plate to move towards the electrode sheet. When the electrode plate contacts the electrode sheet, the circuit is connected, the indicator light will light up, and the control panel will receive the signal from the indicator light and control the electromagnet to generate magnetism, attracting the iron block on the filter plate, thereby firmly fixing the filter plate in the fixed frame. When removing the filter plate, simply turn off the electromagnet power to prevent the filter plate from moving and ensure the filtration effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0016] Figure 1 This is a schematic diagram of the intermediate axis side view of the present invention;

[0017] Figure 2 A cross-sectional structural diagram of the condensate drainage structure of an air source heat pump.

[0018] Figure 3 This is a schematic diagram of a tiltable drainage chassis assembly.

[0019] Figure 4 This is a schematic diagram of a partial structure of the upper part of the air source heat pump casing.

[0020] Figure 5 This is a schematic diagram of the filter plate fixing assembly.

[0021] In the diagram: 1. Air source heat pump housing; 2. Support plate; 3. Rotating shaft; 4. Drainage chassis; 5. Mounting base; 6. Movable rod; 7. Groove; 8. Ball bearing; 9. Cylinder; 10. Circular block; 11. Spring 1; 12. Drain pipe; 13. Exhaust fan; 14. Mounting plate; 15. Water passage hole; 16. Evaporator; 17. Fixing frame; 18. Slide groove; 19. Slide bar; 20. Filter plate; 21. Sleeve; 22. Slide rod; 23. Electromagnet; 24. Iron block; 25. Connecting block; 26. Tension spring; 27. Electrode plate; 28. Electrode sheet; 29. ​​Indicator light; 30. Guide plate; 31. Movable door; 32. Handle; 33. Control panel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-3 As shown, an air source heat pump condensate drainage structure includes an air source heat pump housing 1. Two support plates 2 are symmetrically installed on one end of the bottom inner wall of the air source heat pump housing 1. A rotating shaft 3 is rotatably installed inside each support plate 2. A drainage base 4 is installed at one end of the rotating shaft 3. A mounting seat 5 is installed on one side of the drainage base 4. A movable rod 6 is installed inside the mounting seat 5 through a pin. A groove 7 is opened inside the air source heat pump housing 1. A ball bearing 8 is movably installed inside the groove 7. A cylinder 9 is installed on the top side of the ball bearing 8. One end of the movable rod 6 passes through the inside of the cylinder 9 and is fitted with a circular block 10. A spring 11 is fixed between the circular block 10 and the bottom side of the cylinder 9. A drainage pipe 12 is connected to the other side of the drainage base 4. One end of the drainage pipe 12 connected to the drainage base 4 is a flexible hose, and the other end is a rigid pipe. The other end of the drainage pipe 12 passes through one side of the air source heat pump housing 1 and extends to its outer side.

[0024] Two exhaust fans 13 are symmetrically installed inside the top side of the air source heat pump housing 1. An installation plate 14 is installed on the inner wall of the top of the air source heat pump housing 1. Several water passage holes 15 are opened inside the installation plate 14. An evaporator 16 is installed on the top side of the installation plate 14.

[0025] A fixing frame 17 is installed on the inner wall of the middle section of the air source heat pump housing 1. Two sliding grooves 18 are symmetrically opened inside the fixing frame 17. Sliding strips 19 are slidably installed in the sliding grooves 18. A filter plate 20 is installed between the sliding strips 19.

[0026] A guide plate 30 is installed on the inner wall of the air source heat pump housing 1 at the bottom side of the filter plate 20. A movable door 31 is installed on one side of the bottom of the air source heat pump housing 1 through a hinge. A handle 32 is installed on one side of the movable door 31. During operation, in actual application, the drain tray 4 is not inclined. Condensate is easy to accumulate in the tray and cannot flow to the drain outlet naturally by gravity. Water will accumulate inside the drain tray 4, resulting in poor drainage. When the air source heat pump is running, the induced draft fan 13 accelerates the air flow in the housing. The surface temperature of the evaporator 16 is lower than the air dew point temperature. Water vapor in the air condenses on the surface of the evaporator 16 into condensate. The condensate drips down through the water passage hole 15 on the mounting plate 14 and begins to enter the drainage system.

[0027] At this time, the filter plate 20 can filter the condensate dripping from the evaporator 16 and flowing down through the water passage 15 of the mounting plate 14, intercepting impurities and preventing them from entering the drain pipe 12 or subsequent equipment. The guide plate 30 is installed on the inner wall of the air source heat pump housing 1 on the bottom side of the filter plate 20. After being filtered by the filter plate 20, the condensate flows to the drain chassis 4 under the guidance of the guide plate 30, ensuring that the condensate can smoothly enter the drainage system and avoid accumulating in other parts of the housing.

[0028] Staff can open the movable door 31 through handle 32 to easily clean the filter plate 20, check the working status of the drainage chassis 4, and maintain and repair other components of the drainage system;

[0029] When the amount of condensate is large, the gravity on the side of the drain tray 4 where condensate accumulates increases, applying downward pressure to the movable rod 6. Under this pressure, the circular block 10 compresses the spring 11, causing it to contract and shorten, thus ensuring the water storage capacity of the drain tray 4. As condensate is discharged from the drain pipe 12, the weight of the condensate accumulated on the drain tray 4 gradually decreases. At this point, the previously compressed spring 11 begins to release its elastic potential energy. Due to the elastic restoring force of the spring 11, the circular block 10 experiences an upward thrust. Under the action of the spring 11, the movable rod 6 drives the drain tray 4 to gradually return to its original position, restoring a certain tilt angle. The condensate flows slowly along the tilted surface of the drain tray 4 towards the drain pipe 12. This achieves the tilted setting of the drain tray 4 while ensuring its water storage capacity, facilitating the rapid flow of condensate to the drain pipe 12, improving drainage efficiency, and preventing condensate from accumulating on the drain tray 4. The elasticity of the spring 11 is moderate, meeting the requirements of the above scheme.

[0030] Please see Figure 1 , 2As shown in Figures 4 and 5, a sleeve 21 is installed on the outer side of the middle end of the air source heat pump housing 1. A slide rod 22 is slidably installed inside one side of the sleeve 21. A rod hole is opened at one end of the fixing frame 17 inside one side of the air source heat pump housing 1. A circular groove is opened inside one side of the fixing frame 17. An electromagnet 23 is installed at one end of the slide rod 22, which extends through the rod hole and into the circular groove. An iron block 24 is installed on one side of the filter plate 20. A connecting block 25 is installed at the other end of the slide rod 22. A tension spring 26 is fixedly connected to the sleeve 21. The tension spring 26 is sleeved on the outside of the slide rod 22. An electrode plate 27 is installed on one side of the connecting block 25. An electrode piece 28 is installed inside one side of the sleeve 21. An indicator light 29 is installed on one side of the air source heat pump housing 1. A control panel 33 is installed on one side of the air source heat pump housing 1. During operation, when the air source heat pump is running, condensate is generated on the surface of the evaporator 16, which washes down impurities carried in the air and adheres to the filter plate 20. Over time, this impurity accumulates. The mesh of the filter plate 20 will gradually become clogged by these impurities, making it difficult to maintain. When installing the filter plate 20, align the slide bar 19 of the filter plate 20 with the slide groove 18 and push the filter plate 20 to slide into the slide groove 18. When it slides to the inside of the slide groove 18, the iron block 24 on the filter plate 20 contacts the electromagnet 23 in the circular groove on one side of the fixed frame 17. Continue to push the filter plate 20, and the slide rod 22 slides in the sleeve 21. The tension spring 26 is stretched, and the connecting block 25 drives the electrode plate 27 to move towards the electrode piece 28. When the electrode plate 27 contacts the electrode piece 28, At 8 o'clock, the circuit is turned on and indicator light 29 lights up. At the same time, indicator light 29 transmits a signal to control panel 33 through signal line. After receiving the signal from indicator light 29, control panel 33 controls electromagnet 23 to be energized. After being energized, electromagnet 23 generates magnetism and attracts iron block 24 on filter plate 20, thereby firmly fixing filter plate 20 in fixed frame 17, preventing filter plate 20 from moving under the impact of condensate water flow and other factors, and ensuring filtration effect. The specific model of electromagnet 23 is KP3030L, which has the characteristics of being waterproof and stain-proof.

[0031] When the filter plate 20 needs to be removed for cleaning or replacement, turn off the power to the electromagnet 23 via the control panel 33. After the electromagnet 23 loses its magnetism, it will no longer attract the iron block 24. Under the elastic force of the tension spring 26, the slide rod 22 will drive the connecting block 25 and the electrode plate 27 to reset, and at the same time push the filter plate 20 to move outward. Then the filter plate 20 can be pulled outward.

[0032] Working principle: When installing the filter plate 20, align the slide bar 19 of the filter plate 20 with the slide groove 18, and push the filter plate 20 to slide into the slide groove 18. When it slides to the inside of the slide groove 18, the iron block 24 on the filter plate 20 contacts the electromagnet 23 in the circular groove on one side of the fixed frame 17. Continue to push the filter plate 20, and the slide rod 22 slides in the sleeve 21. The tension spring 26 is stretched, and the connecting block 25 drives the electrode plate 27 to move towards the electrode piece 28. When the electrode plate 27 contacts the electrode piece 28, the circuit is connected, indicating that the filter plate 20 is in operation. When indicator light 29 is lit, it transmits a signal to control panel 33 via a signal line. After receiving the signal from indicator light 29, control panel 33 controls electromagnet 23 to be energized. The energized electromagnet 23 generates magnetism and attracts the iron block 24 on filter plate 20, thereby firmly fixing filter plate 20 in the fixed frame 17. This prevents filter plate 20 from moving under the impact of condensate water flow and other factors, ensuring the filtration effect. The specific model of electromagnet 23 is KP3030L, which has the characteristics of being waterproof and stain-resistant.

[0033] When the air source heat pump is running, the induced draft fan 13 accelerates the air flow in the casing. The surface temperature of the evaporator 16 is lower than the air dew point temperature. Water vapor in the air condenses into condensate on the surface of the evaporator 16. The condensate drips down through the water passage 15 on the mounting plate 14 and begins to enter the drainage system.

[0034] At this time, the filter plate 20 can filter the condensate dripping from the evaporator 16 and flowing down through the water passage 15 of the mounting plate 14, intercepting impurities and preventing them from entering the drain pipe 12 or subsequent equipment. The guide plate 30 is installed on the inner wall of the air source heat pump housing 1 on the bottom side of the filter plate 20. After being filtered by the filter plate 20, the condensate flows to the drain chassis 4 under the guidance of the guide plate 30, ensuring that the condensate can smoothly enter the drainage system and avoid accumulating in other parts of the housing.

[0035] Staff can open the movable door 31 through handle 32 to easily clean the filter plate 20, check the working status of the drainage chassis 4, and maintain and repair other components of the drainage system;

[0036] When the amount of condensate is large, the gravity on the side of the drain base 4 where condensate accumulates increases, applying downward pressure to the movable rod 6. Under this pressure, the circular block 10 compresses the spring 11, causing it to contract and shorten, thus ensuring the water storage capacity of the drain base 4. As condensate is output from the drain pipe 12, the weight of the condensate accumulated on the drain base 4 gradually decreases. At this point, the previously compressed spring 11 begins to release its elastic potential energy. Due to the elastic restoring force of the spring 11, the circular block 10 is subjected to an upward thrust. Under the action of the spring 11, the movable rod 6 drives the drain base 4 to gradually return to its original position, restoring a certain tilt angle. The condensate flows slowly along the tilted surface of the drain base 4 towards the drain pipe 12. This achieves the tilted setting of the drain base 4 while ensuring its water storage capacity, facilitating the rapid flow of condensate towards the drain pipe 12, improving drainage efficiency, and preventing condensate from accumulating on the drain base 4. The elasticity of the spring 11 is moderate, meeting the requirements of the above scheme.

[0037] When the filter plate 20 needs to be removed for cleaning or replacement, turn off the power to the electromagnet 23 via the control panel 33. After the electromagnet 23 loses its magnetism, it will no longer attract the iron block 24. Under the elastic force of the tension spring 26, the slide rod 22 will drive the connecting block 25 and the electrode plate 27 to reset, and at the same time push the filter plate 20 to move outward. Then the filter plate 20 can be pulled outward.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A condensate drainage structure for an air source heat pump, characterized in that: The system includes an air source heat pump housing (1). Two support plates (2) are symmetrically installed on one end of the bottom inner wall of the air source heat pump housing (1). A rotating shaft (3) is rotatably installed inside each support plate (2). A drain base (4) is installed at one end of each rotating shaft (3). A mounting seat (5) is installed on one side of the drain base (4). A movable rod (6) is installed inside the mounting seat (5) via a pin. A groove (7) is formed inside the air source heat pump housing (1), and a movable rod (6) is movably installed inside the groove (7). A ball bearing (8) is mounted on the top side of the ball bearing (8). One end of the movable rod (6) extends into the interior of the cylinder (9) and is mounted with a circular block (10). A spring (11) is fixed between the circular block (10) and the bottom side of the cylinder (9). A drain pipe (12) is connected to the other side of the drain base (4). One end of the drain pipe (12) is a flexible hose and the other end is a rigid pipe. The other end of the drain pipe (12) extends through one side of the air source heat pump housing (1) and extends to its outer side.

2. The air source heat pump condensate drainage structure according to claim 1, characterized in that: Two induced draft fans (13) are symmetrically installed inside the top side of the air source heat pump housing (1). An installation plate (14) is installed on the inner wall of the top of the air source heat pump housing (1). Several water passage holes (15) are opened inside the installation plate (14). An evaporator (16) is installed on the top side of the installation plate (14).

3. The air source heat pump condensate drainage structure according to claim 2, characterized in that: A fixed frame (17) is installed on the inner wall of the middle section of the air source heat pump housing (1). Two sliding grooves (18) are symmetrically opened inside the fixed frame (17). Sliding strips (19) are slidably installed in the sliding grooves (18). A filter plate (20) is installed between the sliding strips (19).

4. The air source heat pump condensate drainage structure according to claim 3, characterized in that: A sleeve (21) is installed on the outer side of the middle end of the air source heat pump housing (1). A slide rod (22) is slidably installed inside one side of the sleeve (21). A rod hole is opened at one end of the fixed frame (17) through one side of the air source heat pump housing (1). A circular groove is opened inside one side of the fixed frame (17). An electromagnet (23) is installed at one end of the slide rod (22) through the rod hole and extending into the circular groove. An iron block (24) is installed on one side of the filter plate (20). A connecting block (25) is installed at the other end of the slide rod (22). A tension spring (26) is fixed between the connecting block (25) and the sleeve (21). The tension spring (26) is sleeved on the outside of the slide rod (22). An electrode plate (27) is installed on one side of the connecting block (25). An electrode sheet (28) is installed inside one side of the sleeve (21). An indicator light (29) is installed on one side of the air source heat pump housing (1).

5. The air source heat pump condensate drainage structure according to claim 4, characterized in that: A guide plate (30) is installed on the inner wall of the air source heat pump housing (1) at the bottom side of the filter plate (20). A movable door (31) is installed on one side of the bottom end of the air source heat pump housing (1) through a hinge. A handle (32) is installed on one side of the movable door (31).

6. The air source heat pump condensate drainage structure according to claim 5, characterized in that: A control panel (33) is installed on one side of the air source heat pump housing (1). The electrode plate (27), electrode sheet (28), indicator light (29), and power supply are connected in a circuit. The indicator light (29) is connected to the control panel (33) through a signal line. The control panel (33) is used to control the operation of the electromagnet (23). The control panel (33) is also electrically connected to other electrical components inside the structure and is used to control the operation of other electrical components inside the structure.

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