Heat pump with novel evaporator

Abstract

The utility model discloses a heat pump with a novel evaporator. Comprising a shell, a fan, an evaporator provided with fins, a compressor, a condenser and an expansion valve, and the height distance L between the topmost end of the evaporator and the topmost end of the fan is larger than the height distance l, namely Lgt, between the bottommost end of the evaporator and the bottommost end of the fan; l; the column number of the first evaporator in the evaporators is N, the column number of the second evaporator in the evaporators is n, the arrangement number of the evaporators is 2N + n, and the overall height of the second evaporator is 1 / 2-4 / 5 of the overall height of the first evaporator; a first cut-off area is formed above the second evaporator, and a second cut-off area is formed below the second evaporator. Through dislocation of the evaporator, upper and lower reserved cutting areas and the like, wind blown out by the fan can exchange heat effectively and quickly, materials in the cutting areas are reduced, and the heat exchange efficiency is improved while the materials and the labor cost are saved.

Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, and specifically to a heat pump with a novel evaporator. Background Technology

[0002] Evaporators play a crucial role in refrigeration systems, primarily absorbing heat through the evaporation of refrigerant to achieve a cooling effect. To ensure their efficient operation, uniform liquid distribution, even airflow distribution, and uniform heat exchange are key design considerations.

[0003] Most heat pumps have a structure where the fan cannot be positioned exactly in the center of the evaporator due to obstructions from other components, resulting in uneven heat exchange within the evaporator.

[0004] Conventional evaporator designs typically use integer-numbered rows, resulting in insufficient airflow from the fan in the upper and lower areas. Space constraints in these areas also hinder air circulation, preventing effective heat exchange. Some manufacturers reduce the overall height of the evaporator, which allows for better airflow through ventilation channels, but this also reduces energy efficiency, leading to less than ideal heat exchange.

[0005] Therefore, how to achieve better heat exchange performance in the evaporator of a heat pump while saving materials and costs is a technical problem that the industry urgently needs to solve. Utility Model Content

[0006] The present invention aims to overcome the shortcomings of the prior art and provide a heat pump with a novel evaporator to solve the problems of poor heat exchange effect and high material and labor costs of existing heat pumps.

[0007] The technical solution adopted by this utility model is to provide a heat pump with a novel evaporator, including a casing, a fan, an evaporator with fins, a compressor, a condenser, and an expansion valve.

[0008] The height distance L between the top of the evaporator and the top of the fan is greater than the height distance l between the bottom of the evaporator and the bottom of the fan, i.e., L>l.

[0009] The difference in distance between the top and bottom ends allows the air duct to transport air upwards more effectively.

[0010] When the evaporators are arranged vertically, the evaporators include a first evaporator and a second evaporator. The number of columns of the first evaporator is N, the number of columns of the second evaporator is n, the arrangement of the evaporators is 2N+n, and the overall height of the second evaporator is 1 / 2 to 4 / 5 of the overall height of the first evaporator.

[0011] The second evaporator is in a row close to the fan, and a first cut-off area is formed above the second evaporator and a second cut-off area is formed below the second evaporator.

[0012] In this invention, at least two different types of evaporators are provided, one of which (i.e., the first evaporator) has at least two rows. The other type (i.e., the second evaporator) has a lower overall height than the first evaporator. In a specific arrangement, a distance is left between the bottom of the second evaporator and the first evaporator to form a second cut-off area; and a distance is also left between the top of the second evaporator and the first evaporator to form a first cut-off area.

[0013] Furthermore, the height distance between the topmost part of the second evaporator and the topmost part of the first evaporator is the height L' of the first cut-off area, and the height distance between the bottommost part of the second evaporator and the bottommost part of the first evaporator is the height l' of the second cut-off area. The height of the first cut-off area is greater than the height of the second cut-off area, i.e., L'>l'.

[0014] Furthermore, a first gap exists between the fan and the second evaporator. This first gap allows any air blown by the fan that cannot pass through the second evaporator in time to disperse outwards from the surface of the second evaporator, effectively ensuring that the air blown by the fan dissipates heat efficiently.

[0015] Furthermore, the first excision area is provided with a second gap, or the second excision area is provided with a third gap.

[0016] Because there are no obstructions and gaps between the first and second cutting areas, the air blown by the fan can effectively reach the first and second cutting areas.

[0017] Furthermore, the first gap and the second gap are interconnected, or the first gap and the third gap are interconnected, or the first gap is interconnected with both the second gap and the third gap.

[0018] All the gaps are interconnected, forming air ducts, allowing the air blown by the fan to flow freely within them.

[0019] Furthermore, when the first evaporator is arranged in two or more columns as 2N, the adjacent columns of the first evaporator N are staggered with each other.

[0020] The staggered arrangement of the fans ensures that each pair of fans receives effective airflow without obstruction, achieving optimal utilization.

[0021] Furthermore, a power supply box is also provided above the fan, and there are gaps between the power supply box and the fan, the second evaporator, and the first cut-off area.

[0022] The power supply box includes a control circuit, which is connected to the mains power and then to the fan, etc., to provide power control.

[0023] Furthermore, the fan is fixed to the housing via a fan bracket.

[0024] Furthermore, the first and second evaporators are provided with several interconnected evaporation tubes and fins disposed outside the evaporation tubes. The fins can perform heat exchange more efficiently.

[0025] Furthermore, several fins are arranged in parallel to each other, with a distance of 2-2.5mm between each pair of fins.

[0026] The beneficial effects of this utility model are as follows:

[0027] The heat pump with a novel evaporator provided by this utility model enables the air blown out by the fan to exchange heat effectively and quickly through the misalignment of the evaporator and the pre-reserved cut-off areas at the top and bottom. At the same time, the material in the cut-off areas is reduced, saving material and labor costs while improving heat exchange efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a heat pump with a novel evaporator provided in an embodiment of the present invention.

[0029] Figure 2 This is a schematic diagram of the evaporator in the embodiment.

[0030] Figure 3 This is a structural diagram illustrating the positional relationship between the fan and the evaporator in the embodiment.

[0031] Figure 4 This is a schematic diagram showing the positional relationship between the first evaporator and the second evaporator.

[0032] Labeling explanation: Fan 1, Evaporator 2, First Evaporator 21, Second Evaporator 22, First Cut-off Area 3, Second Cut-off Area 4, Power Supply Box 5, Fan Bracket 6. Detailed Implementation

[0033] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0034] Example 1

[0035] like Figure 1-4 As shown, this embodiment provides a heat pump with a novel evaporator to solve the problems of poor heat exchange effect and high material and labor costs of existing heat pumps.

[0036] The technical solution adopted in this embodiment is to provide a heat pump with a novel evaporator, including a casing (not shown in the figure), a fan 1, an evaporator 2 with fins, a compressor, a condenser, and an expansion valve.

[0037] like Figure 2 , Figure 3 As shown, the height distance L between the top of the evaporator 2 and the top of the fan 1 is greater than the height distance l between the bottom of the evaporator 2 and the bottom of the fan 1, i.e., L>l.

[0038] The heights referred to in this embodiment are all horizontal heights under working conditions.

[0039] The difference in distance between the top and bottom ends allows the air duct to transport air upwards more effectively.

[0040] like Figure 4 As shown, when the evaporators 2 are arranged vertically, the evaporators 2 include a first evaporator 21 and a second evaporator 22. The number of columns of the first evaporator 21 in the evaporators 2 is N, the number of columns of the second evaporator 22 is n, the arrangement of the evaporators 2 is 2N+n, and the overall height of the second evaporator 22 is 1 / 2 to 4 / 5 of the overall height of the first evaporator 21.

[0041] The second evaporator 22 is arranged in a row close to the fan 1, and a first cut-off area 3 is formed above the second evaporator 22 and a second cut-off area 4 is formed below the second evaporator 22.

[0042] In this embodiment, at least two different types of evaporators 2 are provided. One type (i.e., the first evaporator 21) has at least two rows. The other type (i.e., the second evaporator 22) has a lower overall height than the first evaporator 21. In a specific arrangement, a distance is left between the bottom of the second evaporator 22 and the first evaporator 21 to form a second cut-off area 4; and a distance is left above the second evaporator 22 to form a first cut-off area 3.

[0043] like Figure 4As shown, in one embodiment, the height distance between the topmost part of the second evaporator 22 and the topmost part of the first evaporator 21 is the height L' of the first cut-off region 3, and the height distance between the bottommost part of the second evaporator 22 and the bottommost part of the first evaporator 21 is the height l' of the second cut-off region 4. The height of the first cut-off region 3 is greater than the height of the second cut-off region 4, i.e., L'>l'.

[0044] In one embodiment, a first gap exists between the fan 1 and the second evaporator 22. This first gap allows air blown by the fan 1 that cannot pass through the second evaporator 22 in time to disperse outwards from the surface of the second evaporator 22, effectively ensuring that the air blown by the fan 1 dissipates heat efficiently.

[0045] In one embodiment, the first excised region 3 is provided with a second gap, or the second excised region 4 is provided with a third gap.

[0046] Because there are no obstructions and gaps in the first and second cutting areas, the air blown out by fan 1 can effectively reach the first cutting area 3 and the second cutting area 4.

[0047] In one embodiment, the first gap and the second gap are interconnected; or, the first gap and the third gap are interconnected; or, the first gap and both the second and third gaps are interconnected.

[0048] All the gaps are interconnected, forming an air duct, allowing the air blown out by fan 1 to flow freely within the gaps.

[0049] like Figure 4 As shown, in one embodiment, when the first evaporator 21 is arranged in two or more columns in a 2N configuration, the adjacent columns of the first evaporator 21 are staggered with each other.

[0050] The fans are staggered in pairs, so that each pair can effectively contact the air blown by fan 1 without being blocked, thus achieving optimal utilization.

[0051] In one embodiment, a power supply box 5 is also provided above the fan 1, and there are gaps between the power supply box 5 and the fan 1, the second evaporator 22, and the first cut-off area 3.

[0052] The power supply box 5 includes a control circuit, which is connected to the mains power and then to the fan 1, etc., to provide power control. In this embodiment, the connection to the mains power, the connection to the control circuit, and the control are all traditional and publicly known electrical connection methods in the industry. They are publicly available technical solutions and common knowledge in this field, and will not be described in detail in this embodiment.

[0053] like Figure 1 As shown, in one embodiment, the fan 1 is fixed to the outer casing by a fan bracket 6.

[0054] Specifically, the upper and lower ends of the fan bracket 6 are fixedly connected to the upper and lower parts of the outer shell, respectively, and the fan 1 is fixed at any position in the middle of the fan bracket 6. Alternatively, an adjustable area can be provided on the fan bracket 6 so that the fan 1 can be moved to different positions on the fan bracket.

[0055] In one embodiment, the first evaporator 21 and the second evaporator 22 are provided with a plurality of interconnected evaporation tubes and fins (not shown in the figure) disposed outside the evaporation tubes. The fins can perform heat exchange more efficiently.

[0056] In one embodiment, several fins are arranged parallel to each other, and the distance between any two fins is 2-2.5 mm.

[0057] In this embodiment, the distance between the parallel fins is 2.2mm. This allows for a sufficient number of heat dissipation fins while ensuring adequate airflow and heat exchange efficiency.

[0058] The heat pump with a novel evaporator provided in this embodiment enables the air blown out by the fan 1 to exchange heat effectively and quickly through the misalignment of the evaporator and the pre-reserved cut-off areas at the top and bottom. At the same time, the material in the cut-off areas is reduced, saving material and labor costs while improving heat exchange efficiency.

[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A heat pump with a new type of evaporator, comprising a shell, a fan, an evaporator provided with fins, a compressor, a condenser and an expansion valve, characterized in that: the height distance L between the top end of the evaporator and the top end of the fan is greater than the height distance l between the bottom end of the evaporator and the bottom end of the fan, i.e. L > l; when the evaporator is arranged vertically, the evaporator comprises a first evaporator and a second evaporator, the number of columns of the first evaporator is N, the number of columns of the second evaporator is n, the arrangement of the evaporator is 2N + n, and the overall height of the second evaporator is 1 / 2-4 / 5 of the overall height of the first evaporator; the second evaporator is a column close to the fan, and a first cutout area is formed above the second evaporator and a second cutout area is formed below the second evaporator. The height distance between the top end of the second evaporator and the top end of the first evaporator is the height L' of the first cutout area, and the height distance between the bottom end of the second evaporator n and the bottom end of the first evaporator is the height l' of the second cutout area, i.e. L' > l'. There is a first gap between the fan and the second evaporator. The first cutout area is provided with a second gap, or the second cutout area is provided with a third gap.

2. The heat pump with the new type evaporator according to claim 1, characterized in that, The first gap and the second gap are in communication with each other, or the first gap and the third gap are in communication with each other, or the first gap, the second gap and the third gap are in communication with each other.

3. The heat pump with the new type evaporator according to claim 1, characterized in that, When the two or more columns of the first evaporator are arranged as 2N, the adjacent two columns of the first evaporator N are arranged alternately.

4. The heat pump with the new type evaporator according to claim 3, characterized in that, A power box is further arranged above the fan, and gaps exist between the power box and the fan, the second evaporator and the first cutout area.

5. The heat pump with the new type evaporator according to claim 4, characterized in that, The fan is fixed to the shell by a fan support.

6. The heat pump with the new type evaporator according to claim 1, characterized in that, The first evaporator and the second evaporator are provided with a plurality of evaporating pipes in communication with each other and fins arranged outside the evaporating pipes.

7. The heat pump with the new type evaporator according to claim 1, characterized in that, The plurality of fins are arranged in parallel, and the distance between two fins is 2-2.5 mm.

8. The heat pump with the new type evaporator according to claim 1, characterized in that, ​ 9. The heat pump with the new type evaporator according to claim 1, characterized in that, ​ 10. The heat pump with the new type evaporator according to claim 9, characterized in that, ​

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