Defrosting structure of air source heat pump unit

Abstract

The utility model belongs to the technical field of air source heat pumps, and discloses a defrosting structure of an air source heat pump unit, which comprises a unit main body, a defrosting frame is arranged on the surface of the unit main body, and a defrosting component for removing frost is arranged on the surface of the unit main body. An adjusting assembly used for adjusting the distance between the defrosting assemblies is arranged in the defrosting frame, the defrosting assemblies are movably connected with the adjusting assembly, the defrosting assemblies can move on the surface of the unit body in a reciprocating mode and scrape condensed frost on the surface of the unit body, and when frost on the surfaces of the defrosting assemblies is accumulated to a certain degree, the defrosting assemblies can automatically fall off the frost. According to the design, energy loss is reduced while the unit body is defrosted, the practicability of the device is improved, the distance between the defrosting assemblies can be adjusted through the adjusting assemblies, the device can be suitable for defrosting units of different sizes, and the applicability of the device is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of air source heat pumps, in particular to a defrosting structure of an air source heat pump unit. Background Art

[0002] In the cold winter, air source heat pump units are usually used to heat the indoor environment. However, in the prior art, since the temperature of the outdoor environment is usually low in winter, when the coil temperature of the outdoor unit is lower than the dew point temperature of the outdoor air, the coil of the outdoor unit will usually frost. A large amount of frost accumulates on the outdoor unit coil, which will greatly weaken the heat transfer performance of the evaporator. At the same time, it hinders the air flow between the outdoor unit coils and increases the energy loss of the fan. Therefore, in order to improve the heating efficiency of the heat pump, the heat pump needs to be defrosted in time. However, the existing heat pump defrosting system is usually complex in structure and consumes a lot of energy. Therefore, it is necessary to design an ultra-low temperature air source heat pump defrosting device.

[0003] For example, the utility model with announcement number CN208846784U relates to the technical field of air source heat pumps, specifically a super-low temperature air source heat pump defrosting device, comprising an outer shell and an ultra-low temperature air source heat pump body, the ultra-low temperature air source heat pump body is arranged inside the outer shell, and a defrosting mechanism is installed in the outer shell; the defrosting mechanism is composed of a pair of heating lamps with the same structure, a pair of thermal resistance wire meshes with the same structure, a pair of rectangular grooves with the same structure, a pair of circular through holes with the same structure, a pair of fans with the same structure, a timer and a temperature sensor. The utility model relates to the technical field of air source heat pumps, can effectively defrost, drain water in time, can sense the amount of water, replace it in time, and can perform timed defrosting, with high intelligence.

[0004] In the process of implementing this application, it was found that the technology has the following problems: the defrost device needs to use the heating component for heating all the time, which wastes energy. When the heating component is turned off, in cold temperatures, water droplets are likely to condense again on the surface of the defrost component, affecting the working efficiency of the unit.

[0005] For this purpose, a defrosting structure of an air source heat pump unit is proposed. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that the defrost device needs to use a heating component for heating all the time, which wastes energy. When the heating component is turned off, water droplets are likely to condense again on the surface of the defrost component in cold temperatures, affecting the working efficiency of the unit. The utility model provides a defrost structure for an air source heat pump unit.

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A defrost structure of an air source heat pump unit includes a unit body, a defrost frame is provided on the surface of the unit body, a defrost assembly for removing condensation is provided on the surface of the unit body, an adjustment assembly for adjusting the spacing between defrost assemblies is provided in the defrost frame, and the defrost assembly is movably connected to the adjustment assembly.

[0009] Furthermore, the adjustment component includes a movable plate, the top surface array of the movable plate is provided with guide blocks, bidirectional screw rods are provided between the guide blocks, and the bidirectional screw rods are respectively threadedly connected to the guide blocks, and an adjustment motor is fixed to one end of the bidirectional screw rod.

[0010] By adopting the above technical solution, under the drive of the adjustment motor, the bidirectional lead screw drives the guide block to move, so that the movement of the movable plate is adjusted with equal distance.

[0011] Furthermore, a moving groove is provided on the bottom surface of the moving plate, a moving screw is provided in the moving groove, and the moving screw is movably connected to the moving groove, a moving motor is provided at one end of the moving plate, and an output end of the moving motor is fixedly connected to one end of the moving screw.

[0012] By adopting the above technical solution, under the drive of the moving motor, the moving screw rod moves back and forth along the moving groove with the defrost assembly on the surface of the unit body to achieve the defrost function.

[0013] Furthermore, the defrost assembly includes a mounting plate, and the mounting plate is movably connected to the movable groove, and the mounting plate is threadedly connected to the movable screw rod, a surface array of the mounting plate is provided with a telescopic groove, a pressure sensor and a scraper strip are provided in the telescopic groove, and the scraper strip is movably connected to the telescopic groove, and a reset spring is provided in an array between the pressure sensor and the scraper strip.

[0014] By adopting the above technical solution, when the pressure sensor senses that the scraper is in contact with the surface of the unit body, the adjustment motor stops working, and then the moving motor starts, driving the scraper to scrape the frost on the surface of the unit body. When the frost on the surface of the scraper accumulates to a certain extent, the adjustment motor starts working, and then the scraper moves in the telescopic groove under the action of pressure, and then the frost on the surface of the scraper will fall off. The scraper can also be connected to an external heating device to enhance the defrosting efficiency.

[0015] Furthermore, the internal array of the defrost frame is provided with an adjustment groove, and the guide block is movably connected to the adjustment groove, the inner side of the defrost frame is provided with a guide frame, the bottom array of the defrost frame is provided with a universal wheel, and the universal wheel is rotatably connected to the defrost frame.

[0016] By adopting the above technical solution, when the frost falls off into the guide frame, since the guide frame has a certain inclination angle, the fallen frost can be transported out of the device. The function of the universal wheel is to facilitate the movement of the defrost frame and the maintenance of the unit body.

[0017] Furthermore, a solar panel array is provided on the top surface of the defrost frame, a controller is provided on the surface of the defrost frame, and the controller is electrically connected to the regulating motor, the moving motor, the pressure sensor, and the solar panel respectively.

[0018] By adopting the above technical solution, the solar panel provides energy for the entire device, which is environmentally friendly and economical.

[0019] The beneficial effects of the utility model are as follows:

[0020] The utility model provides an adjusting component and a defrosting component in a defrosting frame. The defrosting component can reciprocate on the surface of the unit body to scrape the frost condensed on the unit surface. When the frost on the surface of the defrosting component accumulates to a certain extent, the defrosting component will automatically drop the frost. This design reduces energy loss while defrosting the unit body, thereby improving the practicality of the device. The adjusting component can adjust the spacing between the defrosting components, so that the device can be suitable for defrosting units of different sizes, thereby enhancing the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an axonometric drawing of the utility model;

[0022] Figure 2 It is an overall cross-sectional view of the utility model;

[0023] Figure 3 It is an exploded view of the overall structure of the utility model;

[0024] Figure 4 It is a cross-sectional view of the adjustment assembly of the utility model;

[0025] Figure 5 It is a structural diagram of the adjustment component of the utility model;

[0026] Figure 6 It is a structural exploded view of the defrosting assembly of the utility model.

[0027] Figure numerals: 1. Defrost frame; 2. Guide frame; 3. Unit body; 4. Controller; 5. Universal wheel; 6. Adjustment assembly; 601. Adjustment motor; 602. Guide block; 603. Moving groove; 604. Bidirectional screw rod; 605. Moving screw rod; 606. Moving plate; 607. Moving motor; 7. Defrost assembly; 701. Mounting plate; 702. Telescopic groove; 703. Pressure sensor; 704. Reset spring; 705. Scraper strip; 8. Adjustment groove; 9. Solar panel. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] like Figures 1 to 6 As shown, a defrost structure of an air source heat pump unit includes a unit body 3, a defrost frame 1 is provided on the surface of the unit body 3, a defrost assembly 7 for removing condensation is provided on the surface of the unit body 3, an adjustment assembly 6 for adjusting the spacing of the defrost assembly 7 is provided in the defrost frame 1, and the defrost assembly 7 is movably connected to the adjustment assembly 6.

[0033] The defrost assembly 7 can move back and forth on the surface of the unit body 3 to scrape the frost condensed on the unit surface. When the frost on the surface of the defrost assembly 7 accumulates to a certain extent, the defrost assembly 7 will self-shed the frost. This design reduces energy loss while defrosting the unit body 3, thereby improving the practicality of the device. The adjustment assembly 6 can adjust the spacing of the defrost assembly 7 so that the device can be used for defrosting units of different sizes, thereby enhancing the applicability of the device. Both sides of the defrost frame 1 are ventilation structures to facilitate air circulation.

[0034] The adjustment component 6 includes a movable plate 606, the top surface array of the movable plate 606 is provided with a guide block 602, a bidirectional screw rod 604 is provided between the guide blocks 602, and the bidirectional screw rod 604 is respectively threadedly connected to the guide blocks 602, an adjustment motor 601 is fixed to one end of the bidirectional screw rod 604, a movable groove 603 is opened on the bottom surface of the movable plate 606, a movable screw rod 605 is provided in the movable groove 603, and the movable screw rod 605 is movably connected to the movable groove 603, a movable motor 607 is provided at one end of the movable plate 606, and the output end of the movable motor 607 is fixedly connected to one end of the movable screw rod 605.

[0035] Driven by the adjusting motor 601, the bidirectional screw rod 604 drives the guide block 602 to move, so that the movable plate 606 can be adjusted to move at equal distances. Driven by the moving motor 607, the moving screw rod 605 moves back and forth along the moving groove 603 with the defrost assembly 7 on the surface of the unit body 3 to realize the defrosting function.

[0036] The defrost assembly 7 includes a mounting plate 701, and the mounting plate 701 is movably connected to the movable groove 603, and the mounting plate 701 is threadedly connected to the movable screw rod 605. The surface array of the mounting plate 701 is provided with a telescopic groove 702, and a pressure sensor 703 and a scraper strip 705 are provided in the telescopic groove 702, and the scraper strip 705 is movably connected to the telescopic groove 702. A reset spring 704 is arranged in an array between the pressure sensor 703 and the scraper strip 705. The internal array of the defrost frame 1 is provided with an adjustment groove 8, and the guide block 602 is movably connected to the adjustment groove 8. A guide frame 2 is provided on the inner side of the defrost frame 1, and a universal wheel 5 is arranged on the bottom array of the defrost frame 1, and the universal wheel 5 is rotatably connected to the defrost frame 1. The top array of the defrost frame 1 is provided with a solar panel 9. The surface of the defrost frame 1 is provided with a controller 4, and the controller 4 is electrically connected to the adjustment motor 601, the movable motor 607, the pressure sensor 703, and the solar panel 9 respectively.

[0037] When the pressure sensor 703 senses that the scraper 705 is in contact with the surface of the unit body 3, the adjustment motor 601 stops working, and then the moving motor 607 starts, driving the scraper 705 to scrape the frost on the surface of the unit body 3. When the frost on the surface of the scraper 705 accumulates to a certain extent, the adjustment motor 601 works, and then the scraper 705 moves in the telescopic groove 702 under the action of pressure, and then the frost on the surface of the scraper 705 will fall off. The scraper 705 can also be connected to an external heating device to enhance the defrosting efficiency. When the frost falls into the guide frame 2, since the guide frame 2 has a certain inclination angle, the fallen frost can be transported outside the device. The function of the universal wheel 5 is to facilitate the movement of the defrost frame 1 and the maintenance of the unit body 3. The solar panel 9 provides energy for the entire device, which is environmentally friendly and economical.

[0038] In summary: under the drive of the adjusting motor 601, the bidirectional screw rod 604 drives the guide block 602 to move, so that the movable plate 606 can be adjusted to move at an equal distance. Under the drive of the moving motor 607, the moving screw rod 605 moves back and forth on the surface of the unit body 3 along the moving groove 603 with the defrost assembly 7 to realize the defrosting function. When the pressure sensor 703 senses that the scraper 705 is in contact with the surface of the unit body 3, the adjusting motor 601 stops working, and then the moving motor 607 starts, driving the scraper 705 to scrape the frost on the surface of the unit body 3. When the frost on the surface of the scraper 705 accumulates to a certain extent, the adjusting motor 601 works, and then the scraper 705 moves in the telescopic groove 702 under the action of pressure, and then the frost on the surface of the scraper 705 will fall off, and the scraper 705 can also be external A heating device is connected to enhance the defrosting efficiency. When the frost falls into the guide frame 2, since the guide frame 2 has a certain inclination angle, the fallen frost can be transported out of the device. The function of the universal wheel 5 is to facilitate the movement of the defrost frame 1 and the maintenance of the unit body 3. The solar panel 9 provides energy for the entire device, which is environmentally friendly and economical. The defrost component 7 can reciprocate on the surface of the unit body 3 to scrape the frost condensed on the surface of the unit. When the frost on the surface of the defrost component 7 accumulates to a certain extent, the defrost component 7 will self-shedding. This design reduces energy loss while defrosting the unit body 3, thereby improving the practicability of the device. The adjustment component 6 can adjust the spacing of the defrost components 7, so that the device can be suitable for defrosting units of different sizes, thereby enhancing the applicability of the device.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A defrosting structure of an air source heat pump unit, comprising a unit body (3), characterized in that: A defrost frame (1) is provided on the surface of the unit body (3), a defrost assembly (7) for removing condensed frost is provided on the surface of the unit body (3), an adjustment assembly (6) for adjusting the spacing of the defrost assembly (7) is provided in the defrost frame (1), and the defrost assembly (7) is movably connected to the adjustment assembly (6).

2. The defrosting structure of an air source heat pump unit according to claim 1, characterized in that: The adjustment component (6) comprises a movable plate (606), the top surface array of the movable plate (606) is provided with guide blocks (602), bidirectional screw rods (604) are provided between the guide blocks (602), and the bidirectional screw rods (604) are respectively threadedly connected to the guide blocks (602), and an adjustment motor (601) is fixed to one end of the bidirectional screw rod (604).

3. The defrosting structure of an air source heat pump unit according to claim 2, characterized in that: A moving groove (603) is provided on the bottom surface of the moving plate (606), a moving screw rod (605) is provided in the moving groove (603), and the moving screw rod (605) is movably connected to the moving groove (603), a moving motor (607) is provided at one end of the moving plate (606), and an output end of the moving motor (607) is fixedly connected to one end of the moving screw rod (605).

4. The defrosting structure of an air source heat pump unit according to claim 3, characterized in that: The defrost assembly (7) comprises a mounting plate (701), and the mounting plate (701) is movably connected to the movable groove (603), and the mounting plate (701) is threadedly connected to the movable screw rod (605), and a telescopic groove (702) is arranged in an array on the surface of the mounting plate (701), and a pressure sensor (703) and a scraper (705) are arranged in the telescopic groove (702), and the scraper (705) is movably connected to the telescopic groove (702), and a return spring (704) is arranged in an array between the pressure sensor (703) and the scraper (705).

5. The defrosting structure of an air source heat pump unit according to claim 4, characterized in that: The internal array of the defrost frame (1) is provided with an adjustment groove (8), and the guide block (602) is movably connected to the adjustment groove (8); the inner side of the defrost frame (1) is provided with a guide frame (2); the bottom array of the defrost frame (1) is provided with a universal wheel (5), and the universal wheel (5) is rotatably connected to the defrost frame (1).

6. The defrosting structure of an air source heat pump unit according to claim 5, characterized in that: The top surface array of the defrost frame (1) is provided with a solar panel (9), the surface of the defrost frame (1) is provided with a controller (4), and the controller (4) is electrically connected to the regulating motor (601), the moving motor (607), the pressure sensor (703), and the solar panel (9), respectively.

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