Defrosting device for air energy heat pump

Abstract

The utility model discloses a defrosting device for an air energy heat pump, which belongs to the technical field of air energy heat pumps and comprises a box body, a box door capable of being opened and closed in a sliding manner is arranged in front of the box body, hot-air defrosting mechanisms are arranged on the left side and the right side in the box body, and a reciprocating mechanism is arranged at the position, close to the top wall, in the box body. And a scraping plate is arranged below the reciprocating motion mechanism. Hot air is conveyed into the air pipe through the air supply pipeline by the hot air blower, and is blown to the left side and the right side of the air energy heat pump body through the spray heads to defrost the surface of the air energy heat pump body, the temperature in the box body is increased by the hot air, defrosting of the scraper blade is facilitated, and the defrosting effect is improved by the cooperation of the hot air and the scraper blade; the box door can be freely opened and closed and closed during defrosting work, heat preservation is conducted on the interior of the box body, the defrosting effect is improved, the box door is opened when the air energy heat pump body works, normal ventilation is guaranteed when the air energy heat pump body works, and the heating efficiency of the air energy heat pump body is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of air source heat pump technology, and in particular to a defrosting device for air source heat pumps. Background Technology

[0002] An air source heat pump uses the energy in the air to generate heat, providing a large volume, high pressure, and constant temperature of hot water for the whole family 24 hours a day, while consuming minimal energy to achieve these requirements. If thick frost doesn't dissipate during use, it will affect the heat absorption of the air source heat pump, thus impacting its performance.

[0003] Existing defrosting devices generally include a housing with a reciprocating scraper installed inside. The scraper removes frost from the surface of the air source heat pump, thus achieving defrosting. However, when the outside temperature is low and the frost is thick, the scraper has difficulty removing it. Utility Model Content

[0004] The purpose of this invention is to provide a defrosting device for air source heat pumps, which solves the problem that existing defrosting devices use scrapers for defrosting, and when the outside temperature is low and the frost is thick, the scraper has difficulty removing the frost.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model discloses a defrosting device for an air source heat pump, including a housing, a sliding and closable door at the front of the housing, hot air defrosting mechanisms on the left and right sides inside the housing, a reciprocating moving mechanism near the top wall inside the housing, and a scraper below the reciprocating moving mechanism.

[0007] The hot air defrosting mechanism includes a mounting frame, the top of which is connected to the housing. Several air ducts are provided on the mounting frame, and nozzles are provided at the ends of the air ducts. A hot air blower is provided outside the housing, and the hot air blower is connected to the air ducts through an air supply pipe.

[0008] Furthermore, the top surface of the mounting bracket is provided with a hanging hole, and the inside of the housing is provided with a hook, which cooperates with the hanging hole.

[0009] Furthermore, the reciprocating moving mechanism includes a crossbeam, which is located at the top center of the housing. The left and right ends of the crossbeam are connected to the left and right inner walls of the housing. A rack is provided in front of the crossbeam, and slide rails are provided on both the upper and lower sides of the rack. Slider blocks are slidably mounted on the slide rails. A moving plate is provided in front of the two sliders, and a motor is provided in front of the moving plate. A gear that meshes with the rack is provided on the output shaft of the motor, and a scraper is provided below the moving plate.

[0010] Furthermore, the cross-section of the scraper is set in a U-shape.

[0011] Furthermore, the cabinet door includes two symmetrically arranged combined door bodies, and the top surface of the cabinet body is provided with a drive mechanism for driving the combined door bodies.

[0012] Furthermore, the combined door body includes a first door body, one side of which is hinged to the box body, and a second door body is hinged to the other side of the first door body.

[0013] Furthermore, the driving mechanism includes a cylinder, which is disposed on the top surface of the housing. A connecting rod is disposed on the piston rod of the cylinder. A mounting block is disposed on the front of the first door, and a connecting post is disposed on the top surface of the mounting block. The connecting post is movably connected to the connecting rod. A sliding wheel is disposed on the top surface of the second door, and a sliding groove matching the sliding wheel is disposed on the top surface of the housing.

[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0015] This invention uses a hot air blower to deliver hot air into the air duct through an air supply pipeline, and then blows it onto the left and right sides of the air source heat pump body through nozzles to defrost the surface of the air source heat pump body. The hot air increases the temperature inside the chamber, which is beneficial for scraper defrosting. The combination of hot air and scraper improves the defrosting effect. The chamber door can be opened and closed freely. It is closed during defrosting to keep the inside of the chamber warm and improve the defrosting effect. When the air source heat pump body is working, the chamber door is open to ensure normal ventilation and ensure its heating efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a front view of the defrosting device for an air-source heat pump according to this utility model;

[0018] Figure 2 This is a front view of the defrosting device for an air-source heat pump of this utility model with the box door open.

[0019] Figure 3 This is a three-dimensional structural diagram of the hot air defrosting mechanism of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the reciprocating moving mechanism of this utility model;

[0021] Figure 5 This is a side view of the scraper of this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the box door, cylinder, connecting rod, connecting column, and mounting block of this utility model;

[0023] Figure 7 This is a schematic diagram showing the positional relationship between the slide groove and the sliding wheel of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Box door; 3. Cylinder; 4. Connecting rod; 5. Connecting column; 6. Mounting block; 7. Sliding wheel; 8. Hot air defrosting mechanism; 9. Reciprocating movement mechanism; 10. Scraper; 11. Air source heat pump body; 1-1. Slide groove; 2-1. First door body; 2-2. Second door body; 8-1. Mounting bracket; 8-2. Air duct; 8-3. Nozzle; 8-4. Hot air blower; 9-1. Crossbeam; 9-2. Rack; 9-3. Moving plate; 9-4. Motor; 9-5. Gear; 9-6. Slide rail; 9-7. Slider. Detailed Implementation

[0025] like Figure 1-7 As shown, a defrosting device for an air source heat pump includes a housing 1. A sliding door 2 is installed on the front of the housing 1. Hot air defrosting mechanisms 8 are installed on the left and right sides inside the housing 1. A reciprocating moving mechanism 9 is installed near the top wall inside the housing 1. A scraper 10 is installed below the reciprocating moving mechanism 9.

[0026] like Figure 3 As shown, the hot air defrosting mechanism 8 includes a mounting frame 8-1. Two lifting lugs are connected to the top surface of the mounting frame 8-1, and hanging holes are provided on the lugs. A hook is connected inside the housing 1, and the hook engages with the hanging holes. The mounting frame 8-1 is hung inside the housing 1, facilitating its removal for cleaning and maintenance. Several air ducts 8-2 are mounted on the mounting frame 8-1, and nozzles 8-3 are installed at the ends of the air ducts 8-2. A hot air blower 8-4 is mounted outside the housing 1, and the hot air blower 8-4 is connected to the air ducts 8-2 via an air supply duct. The hot air blower 8-4 is existing technology, and its specific structure and working principle will not be described in detail here.

[0027] During use, the hot air blower 8-4 delivers hot air through the air supply pipe to the air duct 8-2, and blows it onto the left and right sides of the air source heat pump body 11 through the nozzle 8-3 to defrost the surface of the air source heat pump body 11, preventing thin frost from remaining on the outer shell of the air source heat pump body 11, thus improving the defrosting effect and meeting the defrosting requirements of the air source heat pump; the bottom of the housing 1 has a through hole, through which the melted water can flow out, and the moisture remaining on the outer shell of the air source heat pump body 11 can be further dried by hot air; the top surface of the housing 1 also has a vent.

[0028] like Figure 4 As shown, the reciprocating moving mechanism 9 includes a crossbeam 9-1, which is located at the top center of the housing 1. The left and right ends of the crossbeam 9-1 are connected to the inner walls of the left and right sides of the housing 1. A rack 9-2 is installed in front of the crossbeam 9-1. Slide rails 9-6 are installed on both the upper and lower sides of the rack 9-2. Slider blocks 9-7 are slidably installed on the slide rails 9-6. A moving plate 9-3 is connected in front of the two sliders 9-7. A motor 9-4 is installed in front of the moving plate 9-3. A gear 9-5 that meshes with the rack 9-2 is installed on the output shaft of the motor 9-4. A scraper 10 is installed below the moving plate 9-3.

[0029] like Figure 5 As shown, the scraper 10 has a U-shaped cross-section, and the front and rear sides of the scraper 10 contact the front and rear sides of the air source heat pump body 11 respectively to scrape off the frost on the front and back of the air source heat pump body 11.

[0030] In use, motor 9-4 drives gear 9-5 to rotate. Gear 9-5 meshes with rack 9-2. The rotation of gear 9-5 drives moving plate 9-3 to move left or right, thereby driving scraper 10 to move left or right to scrape off the frost on the front and back of air source heat pump body 11.

[0031] The temperature of the hot air is controlled by the hot air blower 8-4 to prevent it from getting too hot and damaging the air source heat pump body 11. The hot air is only blown towards the left and right sides of the air source heat pump body 11 to increase the temperature inside the housing 1. The front and back sides of the air source heat pump body 11 are defrosted by scrapers to prevent the hot air from blowing directly into the air source heat pump body 11.

[0032] like Figure 6 , 7As shown, the box door 2 includes two symmetrically arranged combined door bodies. The top surface of the box body 1 is provided with a drive mechanism for driving the combined door bodies. The combined door body includes a first door body 2-1, one side of which is hinged to the box body 1, and the other side of which is a second door body 2-2. The drive mechanism includes a cylinder 3, which is installed on the top surface of the box body 1. A connecting rod 4 is connected to the piston rod of the cylinder 3. A mounting block 6 is connected to the front of the first door body 2-1. A connecting column 5 is connected to the top surface of the mounting block 6. The connecting column 5 is movably connected to the connecting rod 4. A sliding wheel 7 is installed on the top surface of the second door body 2-2 through a bracket. A groove 1-1 matching the sliding wheel 7 is opened on the top surface of the box body 1.

[0033] Taking the left-side combination door as an example, its opening mechanism is briefly described as follows: During use, the piston rod of the left-side cylinder 3 retracts, the first door 2-1 on the left rotates forward, the left-side sliding wheel 7 moves to the left along the slide groove 1-1, and the second door 2-2 folds to the right of the first door 2-1, thus opening the left-side combination door. The opening mechanism for the right-side combination door is the same. When defrosting is not required, the two symmetrically arranged combination doors are opened, no longer obstructing the air source heat pump body 11, ensuring air circulation inside the housing 1, and guaranteeing normal ventilation for the air source heat pump body 11 during operation, thus ensuring its heating efficiency. When defrosting is required, the defrosting operation is performed by closing the housing door 2.

[0034] The working process of this utility model is as follows:

[0035] During defrosting, the air source heat pump body 11 is stopped. The hot air blower 8-4 delivers hot air through the air supply pipe to the air duct 8-2 and blows it to the left and right sides of the air source heat pump body 11 through the nozzle 8-3 to defrost the surface of the air source heat pump body 11, preventing thin frost from remaining on the outer shell of the air source heat pump body 11 and improving the defrosting effect. Then, the motor 9-4 is started, and the motor 9-4 drives the gear 9-5 to rotate. The gear 9-5 meshes with the rack 9-2. The rotation of the gear 9-5 drives the moving plate 9-3 to move to the right, thereby driving the scraper 10 to move to the right to scrape off the frost on the front and back of the air source heat pump body 11. When the scraper 10 moves to the rightmost end, the motor 9-4 drives the gear 9-5 to rotate in the opposite direction, thereby driving the scraper 10 to move to the left. The scraper 10 moves back and forth left and right to perform the defrosting operation on the front and back of the air source heat pump body 11.

[0036] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A defrosting device for an air-source heat pump, characterized in that: Includes a box body (1), a sliding door (2) is provided at the front of the box body (1), a hot air defrosting mechanism (8) is provided on the left and right sides inside the box body (1), a reciprocating moving mechanism (9) is provided inside the box body (1) near the top wall, and a scraper (10) is provided below the reciprocating moving mechanism (9). The hot air defrosting mechanism (8) includes a mounting frame (8-1), the top of which is connected to the housing (1). Several air ducts (8-2) are provided on the mounting frame (8-1), and nozzles (8-3) are provided at the ends of the air ducts (8-2). A hot air blower (8-4) is provided outside the housing (1), and the hot air blower (8-4) is connected to the air ducts (8-2) through an air supply pipe.

2. The defrosting device for an air-source heat pump according to claim 1, characterized in that: The top surface of the mounting bracket (8-1) is provided with a hanging hole, and the inside of the box (1) is provided with a hook, which cooperates with the hanging hole.

3. The defrosting device for an air-source heat pump according to claim 1, characterized in that: The reciprocating moving mechanism (9) includes a crossbeam (9-1), which is located at the top center of the housing (1). The left and right ends of the crossbeam (9-1) are connected to the inner walls of the left and right sides of the housing (1). A rack (9-2) is provided in front of the crossbeam (9-1). Slide rails (9-6) are provided on both the upper and lower sides of the rack (9-2). Slider blocks (9-7) are slidably arranged on the slide rails (9-6). A moving plate (9-3) is provided in front of the two sliders (9-7). A motor (9-4) is provided in front of the moving plate (9-3). A gear (9-5) that meshes with the rack (9-2) is provided on the output shaft of the motor (9-4). A scraper (10) is provided below the moving plate (9-3).

4. The defrosting device for an air-source heat pump according to claim 3, characterized in that: The cross-section of the scraper (10) is U-shaped.

5. The defrosting device for an air-source heat pump according to claim 1, characterized in that: The box door (2) includes two combined door bodies arranged symmetrically on the left and right sides, and the top surface of the box body (1) is provided with a drive mechanism for driving the combined door bodies.

6. The defrosting device for an air-source heat pump according to claim 5, characterized in that: The combined door includes a first door (2-1), one side of which is hinged to the box (1), and a second door (2-2) is hinged to the other side of the first door (2-1).

7. The defrosting device for an air-source heat pump according to claim 6, characterized in that: The driving mechanism includes a cylinder (3), which is located on the top surface of the housing (1). A connecting rod (4) is provided on the piston rod of the cylinder (3). A mounting block (6) is provided on the front of the first door (2-1). A connecting column (5) is provided on the top surface of the mounting block (6). The connecting column (5) is movably connected to the connecting rod (4). A sliding wheel (7) is provided on the top surface of the second door (2-2). A sliding groove (1-1) matching the sliding wheel (7) is provided on the top surface of the housing (1).

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