Air energy heat pump unit with defrosting structure

Abstract

The utility model is suitable for heat pump unit technical field provides an air -source heat pump unit with defrosting structure, include: air -source heat pump unit main part and energy -conserving defrosting mechanism, energy -conserving defrosting mechanism sets up air -source heat pump unit main part's outside, energy -conserving defrosting mechanism includes second air deflector, fan blade, fan and heat exchange cover, second air deflector sets up air -source heat pump unit main part's top, second air deflector is used for driving fan blade rotation, fan blade is used for driving fan rotation, fan is used for bringing the airflow in heat exchange cover to flow. In the utility model, the surface temperature is improved to avoid frost, in addition, the rain gutter on the top of the unit can collect rainwater and discharge through the drain pipe, prevent the accumulated water from affecting the equipment operation, so as to avoid the situation that the power consumption of the whole equipment is greatly increased due to the defrosting of the evaporator, thereby reducing the use cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat pump units, and in particular relates to an air source heat pump unit with a defrosting structure. Background Technology

[0002] An air source heat pump unit is an energy-saving device that uses the reverse Carnot principle to absorb low-grade heat energy from the air through refrigerant circulation, and then transfers the heat to water or indoor environment after the compressor compresses and raises the temperature. Its operation mainly consumes a small amount of electricity to drive the compressor, and its heating efficiency is much higher than that of electric heating equipment. Moreover, it can work stably in low-temperature environments through technical optimization. It is an environmentally friendly and efficient clean energy utilization device.

[0003] Due to the inherent nature of their operating principle, air source heat pump units are prone to frost and ice buildup on their evaporator surfaces during heating due to low temperatures, which reduces their heating efficiency. Therefore, an air source heat pump unit with a defrosting mechanism is required.

[0004] Currently, air source heat pump units with defrosting structures on the market heat the evaporator through an external heating mechanism, effectively preventing frost buildup. However, this process consumes a lot of electricity, increasing the overall energy consumption of air source heat pump units that are known for their energy efficiency, thus increasing operating costs. Utility Model Content

[0005] This utility model provides an air source heat pump unit with a defrosting structure, aiming to solve the problem that existing heat pump units heat the evaporator through an external heating mechanism to effectively prevent frost formation, but this method consumes a lot of electricity, which increases the overall energy consumption of the air source heat pump unit, which is known for its energy saving, thus increasing the operating cost.

[0006] This utility model is implemented as follows: an air source heat pump unit with a defrosting structure includes: an air source heat pump unit body and an energy-saving defrosting mechanism, wherein the energy-saving defrosting mechanism is disposed on the outside of the air source heat pump unit body;

[0007] The energy-saving defrosting mechanism includes a second air guide plate, fan blades, a fan, and a heat exchange shroud. The second air guide plate is located on the top of the main body of the air source heat pump unit. The second air guide plate is used to drive the fan blades to rotate, the fan blades are used to drive the fan to rotate, and the fan is used to drive the airflow in the heat exchange shroud.

[0008] Preferably, the energy-saving defrosting mechanism further includes a connecting groove, which is opened on the top of the air source heat pump unit body. An air distribution groove is installed on the bottom inner side of the connecting groove. The fan is located inside the air distribution groove, and fixed blocks are rotatably connected to the outer sides of both ends of the fan.

[0009] Preferably, the fixing block is installed inside the main body of the air source heat pump unit, and a first bevel gear is fixedly connected to both ends of the fan, and a second bevel gear is provided on the outer side of the first bevel gear.

[0010] Preferably, a ratchet and pawl structure is provided at the other end of the second bevel gear, and a third bevel gear is fixedly connected to the other end of the ratchet and pawl structure. A fourth bevel gear is provided on the outer side of the third bevel gear, and the fan blade is fixedly connected to the top of the fourth bevel gear. A limit frame is rotatably connected to the outer side of the fan blade.

[0011] Preferably, the limiting bracket is installed on the top of the air source heat pump unit body, the second air guide plate is installed on the other side of the top of the air source heat pump unit body, the top of the connecting slot is provided with the first air guide plate, the bottom of the air distribution slot is connected to the air inlet pipe, the heat exchange cover is connected to the other end of the air inlet pipe, and the other side of the heat exchange cover is connected to the air ring.

[0012] Preferably, the top outer side of the fan ring is connected to multiple jet heads, and the heat exchange shroud is fitted on the top outer side of the compressor in the main body of the air source heat pump unit.

[0013] Preferably, the bottom of the second air guide plate is provided with a rain groove, which is installed on the top of the air source heat pump unit. Both ends of the rain groove are connected to drain pipes. Multiple drain holes are opened on the inner side of the bottom of the second air guide plate, and the drain holes are located on the top of the rain groove.

[0014] Compared with related technologies, the air source heat pump unit with a defrosting structure provided by this utility model has the following beneficial effects:

[0015] In this invention, when the air source heat pump unit is running, the top inlet fan blows air into the evaporator, creating a negative pressure zone in the inlet fan area. The surrounding air converges towards it due to the pressure difference, and the airflow influence range spreads outward from the inlet fan, ensuring that there is still airflow outside the inlet fan. At this time, the first air guide plate introduces the airflow around the inlet fan into the air distribution groove below the connecting groove, and the second air guide plate guides the airflow on the other side to drive the fan blades to rotate. The fan blades are driven by the meshing of the fourth and third bevel gears, and the ratchet and pawl structure drives the second bevel gear to rotate, which in turn drives the first bevel gears at both ends of the fan, causing the fan in the air distribution groove to rotate and accelerating the airflow in the groove. The airflow enters the heat exchange hood through the air inlet pipe at the bottom of the air distribution groove, absorbs the heat from the compressor, and is then sprayed onto the outside of the evaporator through the fan ring and multiple jet nozzles on the top, raising its surface temperature to prevent frost formation. In addition, the rain gutter on the top of the unit can collect rainwater and discharge it through the drain pipe to prevent water accumulation from affecting the operation of the equipment. This avoids the situation where defrosting the evaporator traditionally leads to a significant increase in the overall power consumption of the equipment, thereby reducing the operating cost. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the drilling assembly of this utility model.

[0018] Figure 3 This is a three-dimensional structural breakdown diagram of the energy-saving defrosting mechanism of the lubrication device of this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0020] Figure 5 for Figure 3 Enlarged view of point B in the image.

[0021] Reference numerals in the attached drawings: 1. Main body of the air source heat pump unit; 2. Energy-saving defrosting mechanism; 201. Connecting groove; 202. Fixing block; 203. Fan; 204. First bevel gear; 205. Second bevel gear; 206. Ratchet and pawl structure; 207. Third bevel gear; 208. Fourth bevel gear; 209. Fan blade; 210. Limiting frame; 211. First air guide plate; 212. Second air guide plate; 213. Drain hole; 214. Rain groove; 215. Drain pipe; 216. Fan ring; 217. Jet nozzle; 218. Heat exchange hood; 219. Air inlet pipe; 220. Air distribution groove. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] This utility model embodiment provides an air source heat pump unit with a defrosting structure, such as Figure 1-5 As shown, it includes: an air source heat pump unit body 1 and an energy-saving defrosting mechanism 2, wherein the energy-saving defrosting mechanism 2 is disposed on the outside of the air source heat pump unit body 1;

[0025] The energy-saving defrosting mechanism 2 includes a second air guide plate 212, fan blades 209, a fan 203, and a heat exchange shroud 218. The second air guide plate 212 is disposed on the top of the air source heat pump unit body 1. The second air guide plate 212 drives the fan blades 209 to rotate, and the fan blades 209 drive the fan 203 to rotate. The fan 203 drives the airflow within the heat exchange shroud 218. The energy-saving defrosting mechanism 2 also includes a connecting groove 201, which is opened on the top of the air source heat pump unit body 1. An air distribution groove 220 is installed on the inner bottom of the connecting groove 201. The fan 203 is disposed inside the air distribution groove 220. Both ends of the fan 203 are rotatably connected to a fixing block 202, which is installed inside the air source heat pump unit body 1. Both ends of the fan 203 are fixedly connected to a first bevel gear 204. A second bevel gear 205 is provided on the outside of the first bevel gear 204. A ratchet and pawl structure 206 is provided on the other end of the second bevel gear 205. A third bevel gear 207 is fixedly connected to the other end of the ratchet and pawl structure 206. A fourth bevel gear 208 is provided on the outside of the third bevel gear 207. The fan blade 209 is fixedly connected to the top of the fourth bevel gear 208. A limit bracket 210 is rotatably connected to the outside of the fan blade 209.

[0026] In this embodiment, when the air source heat pump unit 1 is running, the top inlet fan 203 sends air to the evaporator, and a negative pressure zone is formed in the area of ​​the inlet fan 203. The surrounding air flows into the negative pressure zone under the action of atmospheric pressure difference, forming an airflow that converges from the periphery to the air duct opening. The airflow influence range spreads outward from the inlet fan 203 as the center, so that there is still airflow outside the inlet fan 203.

[0027] In a further preferred embodiment of this utility model, the limiting frame 210 is installed on the top of the air source heat pump unit body 1, the second air guide plate 212 is installed on the other side of the top of the air source heat pump unit body 1, the top of the connecting groove 201 is provided with the first air guide plate 211, the bottom of the air distribution groove 220 is connected to the air inlet pipe 219, the heat exchange cover 218 is connected to the other end of the air inlet pipe 219, and the other side of the heat exchange cover 218 is connected to the wind ring 216.

[0028] In this embodiment, the first air guide plate 211 introduces the airflow around the inlet fan 203 into the air distribution groove 220 below the connecting groove 201. At the same time, the second air guide plate 212 guides the airflow on the other side to drive the fan blade 209 to rotate. The fan blade 209 is driven by the meshing of the fourth bevel gear 208 and the third bevel gear 207. The ratchet and pawl structure 206 drives the second bevel gear 205 to rotate, thereby driving the first bevel gears 204 at both ends of the fan 203, so that the fan 203 in the air distribution groove 220 rotates and accelerates the airflow in the groove.

[0029] In a further preferred embodiment of this utility model, the top outer side of the wind ring 216 is connected to a plurality of jet nozzles 217, the heat exchange hood 218 is sleeved on the top outer side of the compressor in the air source heat pump unit body 1, the bottom of the second air guide plate 212 is provided with a rain groove 214, the rain groove 214 is installed on the top of the air source heat pump unit body 1, both ends of the rain groove 214 are connected to drain pipes 215, and the bottom inner side of the second air guide plate 212 is provided with a plurality of drain holes 213, the drain holes 213 are located on the top of the rain groove 214.

[0030] In this embodiment, the airflow enters the heat exchange hood 218 through the air inlet pipe 219 at the bottom of the air distribution trough 220. After absorbing the heat generated by the compressor operation, the airflow is sprayed towards the outside of the evaporator through the air ring 216 connected to the heat exchange hood 218 and multiple jet nozzles 217 on the top of the air ring 216, thereby increasing the surface temperature of the evaporator and preventing frost formation. The rain trough 214 on the top of the unit collects rainwater and discharges it through the drain pipe 215 to prevent water accumulation from affecting the operation of the equipment.

[0031] In summary, when the air source heat pump unit 1 is running, when the top inlet fan 203 sends air to the evaporator, a negative pressure zone is formed in the area of ​​the inlet fan 203. The surrounding air flows towards the negative pressure zone under the action of atmospheric pressure difference, forming an airflow that converges from the periphery to the air duct opening. The influence range of this airflow spreads outward from the inlet fan 203, so that there is still airflow outside the area outside the inlet fan 203. At this time, the first air guide plate 211 introduces the airflow around the inlet fan 203 into the air distribution groove 220 below the connecting groove 201. At the same time, the second air guide plate 212 guides the airflow on the other side to drive the fan blade 209 to rotate. The fan blade 209 is connected to the fourth bevel gear 208 and the third bevel gear 207. The meshing transmission drives the second bevel gear 205 to rotate via the ratchet and pawl structure 206, which in turn drives the first bevel gears 204 at both ends of the fan 203, causing the fan 203 in the air distribution slot 220 to rotate, accelerating the airflow in the slot. The airflow enters the heat exchange hood 218 through the air inlet pipe 219 at the bottom of the air distribution slot 220, absorbs the heat generated by the compressor operation, and then sprays the hot airflow to the outside of the evaporator through the fan ring 216 connected to the heat exchange hood 218 and multiple jet nozzles 217 on the top of the fan ring 216, raising the surface temperature of the evaporator and thus preventing frost formation. In addition, the rain trough 214 on the top of the unit can collect rainwater and discharge it through the drain pipe 215 to prevent water accumulation from affecting the operation of the equipment.

[0032] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0033] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An air energy heat pump unit with defrosting structure, characterized in that, include: The air source heat pump unit body (1) and the energy-saving defrosting mechanism (2) are arranged on the outside of the air source heat pump unit body (1); The energy-saving defrosting mechanism (2) includes a second air guide plate (212), a fan blade (209), a fan (203), and a heat exchange cover (218). The second air guide plate (212) is located on the top of the air source heat pump unit body (1). The second air guide plate (212) is used to drive the fan blade (209) to rotate. The fan blade (209) is used to drive the fan (203) to rotate. The fan (203) is used to drive the airflow in the heat exchange cover (218) to flow.

2. The air-to-water heat pump unit with defrosting structure according to claim 1, characterized in that, The energy-saving defrosting mechanism (2) also includes a connecting groove (201), which is opened at the top of the air source heat pump unit body (1). An air distribution groove (220) is installed at the bottom inner side of the connecting groove (201). The fan (203) is located inside the air distribution groove (220), and fixed blocks (202) are rotatably connected to the outer sides of both ends of the fan (203).

3. The air-to-water heat pump unit with defrosting structure according to claim 2, characterized in that, The fixing block (202) is installed inside the air source heat pump unit body (1). The two ends of the fan (203) are fixedly connected with the first bevel gear (204), and the outer side of the first bevel gear (204) is provided with the second bevel gear (205).

4. The air-to-water heat pump unit with defrosting structure according to claim 3, characterized in that, The other end of the second bevel gear (205) is provided with a ratchet and pawl structure (206), the other end of the ratchet and pawl structure (206) is fixedly connected to a third bevel gear (207), a fourth bevel gear (208) is provided on the outside of the third bevel gear (207), the fan blade (209) is fixedly connected to the top of the fourth bevel gear (208), and a limit frame (210) is rotatably connected to the outside of the fan blade (209).

5. The air-to-water heat pump unit with defrosting structure according to claim 4, characterized in that, The limiting frame (210) is installed on the top of the air source heat pump unit body (1), the second air guide plate (212) is installed on the other side of the top of the air source heat pump unit body (1), the top of the connecting groove (201) is provided with the first air guide plate (211), the bottom of the air distribution groove (220) is connected to the air inlet pipe (219), the heat exchange cover (218) is connected to the other end of the air inlet pipe (219), and the other side of the heat exchange cover (218) is connected to the wind ring (216).

6. The air-to-water heat pump unit with defrosting structure according to claim 5, characterized in that, The top outer side of the wind ring (216) is connected to multiple jet heads (217), and the heat exchange hood (218) is fitted on the top outer side of the compressor in the main body (1) of the air source heat pump unit.

7. The air-to-water heat pump unit with defrosting structure according to claim 1, characterized in that, The bottom of the second air guide plate (212) is provided with a rain trough (214), which is installed on the top of the air source heat pump unit body (1). Both ends of the rain trough (214) are connected to drain pipes (215). Multiple drain holes (213) are opened on the inner side of the bottom of the second air guide plate (212), and the drain holes (213) are located on the top of the rain trough (214).

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