Water pan structure and heat pump

Abstract

The utility model discloses a water pan structure and a heat pump, the water pan structure comprises: a bearing platform, the upper surface of which is provided with a cushion block and a drain hole; the outer water baffle is arranged on the edge of the bearing platform in a surrounding mode, and the height of the outer water baffle is smaller than that of the cushion block. The cushion blocks on the bearing platform are used for bearing the evaporator so as to block up the evaporator, after the evaporator is defrosted, most frost water can be discharged through the drainage holes, but a small part of frost water can be retained on the bearing platform and is blocked by the outer water baffle to form a water pool, and even if the frost water in the water pool is condensed, the frost water in the water pool can be blocked by the outer water baffle. Due to the fact that the height of the outer water baffle is lower than the lowest position of the evaporator, the ice layer is located below the evaporator and does not make contact with the evaporator, at the moment, the thickness of the ice layer is small, the heat absorption efficiency of the ice layer is low, and frost water generated subsequently is guided out of the bearing platform by the ice layer due to the fact that the frost water cannot be condensed immediately after making contact with the ice layer. And the ice layer is prevented from gradually growing from bottom to top.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, in particular to a water receiving pan structure and a heat pump. Background Art

[0002] The existing heat pumps have not fully considered the technical problem that frost water accumulates in the water receiving pan after defrosting the fins and is difficult to discharge. Once frost water accumulates on the water receiving pan, it will condense into an ice layer in a low temperature environment. Since the evaporator can utilize low-grade thermal energy, the surface temperature of the evaporator will be lower than the external ambient temperature. The frost water on the evaporator will freeze after contacting the ice layer, and eventually the ice layer will gradually cover the fins of the evaporator from bottom to top, thereby causing the evaporator heat exchange failure.

[0003] In order to solve the above technical problems, the existing technology mainly uses a heating device to remove ice, such as "A heat pump system with a water tray and ice melting pipeline" with publication number CN207922617U. Although the existing technology can remove the ice layer on the evaporator, it consumes energy and has a high cost. Utility Model Content

[0004] The utility model provides a water receiving tray structure, which can prevent the formation of ice layer on the evaporator without consuming energy.

[0005] According to the first aspect of the present invention, the water receiving tray structure comprises:

[0006] A cap, the upper surface of which is provided with a cushion block and a drainage hole;

[0007] An outer water retaining plate is arranged around the edge of the support platform, and the height of the outer water retaining plate is lower than the height of the cushion block.

[0008] The water receiving tray structure according to the embodiment of the utility model has at least the following beneficial effects: the pad on the support platform is used to support the evaporator to raise the evaporator. After the evaporator is defrosted, most of the frost water can be discharged through the drain hole, but a small amount of frost water will remain on the support platform and be blocked by the outer water baffle to form a puddle. Even if the frost water in the puddle condenses, since the height of the outer water baffle is lower than the lowest position of the evaporator, the ice layer is located below the evaporator and does not contact the evaporator. At this time, the thickness of the ice layer is thin and its heat absorption efficiency is also low. Therefore, the frost water generated subsequently cannot condense immediately after contacting the ice layer, and is diverted to the outside of the support platform by the ice layer, thereby avoiding the gradual growth of the ice layer from bottom to top.

[0009] According to some embodiments of the present invention, in order to limit the flow range of frost water, the support platform is provided with an inner water baffle plate on the inner side of the outer water baffle plate, and the height of the inner water baffle plate is lower than the height of the cushion block.

[0010] According to some embodiments of the utility model, the inner water retaining plate and the outer water retaining plate jointly form a hydrophobic space, and the hydrophobic hole is arranged in the hydrophobic space. The maximum size of the hydrophobic space is larger than the projection of the evaporator on the support platform, and the minimum size of the hydrophobic space is smaller than the projection of the evaporator on the support platform, so that all the frost water on the evaporator can flow down to the hydrophobic space.

[0011] According to some embodiments of the present invention, in view of the structure of the evaporator, the pad should be located at the edge of the evaporator, so the pad is arranged in the hydrophobic space.

[0012] According to some embodiments of the utility model, the outer water retaining plate is provided with a notch. Since the outer water retaining plate is provided with a notch, when an ice layer is formed, the thickness of the ice layer at the notch is relatively thin, so that the frost water can be directed to the notch for discharge.

[0013] According to some embodiments of the present invention, in order to stably place the evaporator, there are multiple cushion blocks, and the upper surfaces of all cushion blocks are kept horizontal.

[0014] According to some embodiments of the utility model, in order to improve the drainage efficiency, the number of the drain holes is multiple, the base is provided with multiple guide grooves, and every two adjacent drain holes are connected through the guide groove.

[0015] According to some embodiments of the utility model, in order to centrally drain frost water, a drainage channel connected to the drain hole is provided below the support platform, and the drainage channel is connected to the drainage hole.

[0016] According to some embodiments of the present utility model, the bottom surface of the drainage channel is an inclined surface, and the drainage hole is arranged at the lowest position of the inclined surface, which is conducive to the discharge of frost water.

[0017] According to the heat pump of the second aspect of the present invention, the heat pump includes a mounting frame, a compressor, an evaporator, a heat exchanger and the above-mentioned water receiving tray structure, the support platform is arranged on the mounting frame, the cushion block is used to support the evaporator, and the compressor, evaporator and heat exchanger are all installed on the mounting frame.

[0018] The heat pump according to the embodiment of the utility model has at least the following beneficial effects: since the heat pump adopts the water receiving pan structure, the heat pump can prevent the formation of an ice layer on the evaporator without consuming energy.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a heat pump according to an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A front view of the heat pump is shown;

[0023] Figure 3 yes Figure 2 A partial enlarged view of the heat pump at position A is shown;

[0024] Figure 4 It is a partial three-dimensional structural schematic diagram of the water receiving tray structure of an embodiment of the utility model;

[0025] Figure 5 yes Figure 4 A top view of the water tray structure shown.

[0026] In the attached drawings: 100-base, 110-drain hole, 200-pad, 120-outer water retaining plate, 130-inner water retaining plate, 101-drain space, 140-guide groove, 121-gap, 300-drainage channel, 310-drain hole, 311-drain pipe, 10-mounting frame, 20-evaporator. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and 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.

[0029] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] like Figures 1 to 5 As shown, the water receiving tray structure according to the first embodiment of the utility model includes a support 100, and the support 100 is used to support the evaporator 20 of the heat pump. Since the evaporator 20 can use low-grade heat energy when working, the surface temperature of the evaporator 20 will be lower than the external environment temperature. The water vapor in the air will condense into water droplets on the surface of the evaporator 20 after being cooled, and condense into frost over time, thereby hindering the normal operation of the evaporator 20. Therefore, the existing heat pumps all have a defrosting function. Once the defrosting function is turned on, the frost water will flow down from the evaporator 20 to the support 100. Although the support 100 is provided with a hydrophobic hole 110, if the amount of frost water is large, a part of the frost water will still be retained on the support 100.

[0032] Since the surface temperature of the evaporator 20 is lower than the external environment temperature, the peripheral temperature of the evaporator 20 is also lower than the external environment temperature. Once the external environment temperature is at a low level, the peripheral temperature of the evaporator 20 can also condense the frost water into ice. In the prior art, the frost water on the support platform 100 that has not been discharged in time will condense into ice under low temperature conditions. Although the thickness of the ice layer is relatively thin at this time, since the ice layer can contact the evaporator 20, the heat absorption efficiency of the ice layer is relatively high, causing the subsequent frost water to condense into ice immediately after contacting the ice layer. As time goes by, the ice layer gradually grows from bottom to top. Even if the heat pump turns on the defrost function, since the thickness of the ice layer is much greater than the thickness of the frost layer, the defrost function cannot be used to remove the ice layer covering the surface of the evaporator 20, which eventually leads to the failure of the heat exchange of the evaporator 20. Once the evaporator 20 fails to exchange heat, the heat pump system will send an alarm signal to the outside, and at this time, it is necessary to dispatch staff to the site to manually break the ice, which is very time-consuming and labor-intensive.

[0033] In order to solve the above technical problems, the support platform 100 is provided with a cushion block 200 in addition to the drain hole 110. The cushion block 200 is used to support the evaporator 20 to play the role of raising the evaporator 20. In this embodiment, the height of the cushion block 200 does not exceed 20 mm to ensure that the center of gravity of the evaporator 20 is always located in the safe range, and the cushion block 200 is preferably a non-metallic component, such as a rubber pad or a silicone pad. Since the evaporator 20 needs to be fixedly connected to the support platform 100 by bolts, the setting of the cushion block 200 not only plays the role of raising, but also plays the role of vibration isolation. In addition, the edge of the support platform 100 is surrounded by an outer water retaining plate 120, and the height of the outer water retaining plate 120 is lower than the height of the cushion block 200.

[0034] With the above structure, when the heat pump turns on the defrosting function, the frost covering the surface of the evaporator 20 absorbs heat and melts. Although most of the frost water can be discharged through the drain hole 110, a small part of the frost water will remain on the support platform 100 and be blocked by the outer water baffle 120 to form a puddle. When the external environment temperature is low, the frost water in the puddle condenses. Since the height of the outer water baffle 120 is lower than the lowest position of the evaporator 20, the ice layer is located below the evaporator 20 and does not contact the evaporator 20. At this time, the thickness of the ice layer is thinner and its heat absorption efficiency is also lower. Therefore, the frost water generated later cannot condense immediately after contacting the ice layer and is diverted to the outside of the support platform 100 by the ice layer to prevent the ice layer from growing gradually from bottom to top.

[0035] It should be noted that the outer water retaining plate 120 is used to form an ice layer with uniform thickness on the support platform 100, and the thickness of the ice layer is equivalent to the height of the outer water retaining plate 120. If the outer water retaining plate 120 is not provided, although the frost water can also flow out from the edge of the support platform 100, the frost water will condense into an irregular ice surface on the support platform 100 to form a structure capable of storing frost water, and as the ice layer gradually grows, it will eventually come into contact with the evaporator 20.

[0036] In some embodiments of the utility model, in order to limit the flow range of frost water, the support platform 100 is provided with an inner water baffle 130 on the inner side of the outer water baffle 120, and the height of the inner water baffle 130 is lower than the height of the cushion block 200. The inner water baffle 130 and the outer water baffle 120 together form a hydrophobic space 101, and the hydrophobic hole 110 is provided in the hydrophobic space 101. The maximum size of the hydrophobic space 101 is larger than the projection of the evaporator 20 on the support platform 100, and the minimum size of the hydrophobic space 101 is smaller than the projection of the evaporator 20 on the support platform 100, so that the frost water on the surface of the evaporator 20 can all flow down into the hydrophobic space 101.

[0037] Furthermore, in view of the structure of the evaporator 20 , the cushion block 200 should be located at the edge of the evaporator 20 , so the cushion block 200 is disposed in the hydrophobic space 101 .

[0038] In some embodiments of the utility model, in order to stably place the evaporator 20, the number of the pads 200 is multiple, and the upper surfaces of all the pads 200 are kept horizontal. Correspondingly, the number of the drain holes 110 is also multiple, and the base 100 is provided with multiple guide grooves 140, and each two adjacent drain holes 110 are connected through the guide grooves 140 to improve the drainage efficiency. Since all the pads 200 are arranged in the drain space 101, generally speaking, the pads 200 are arranged between two adjacent drain holes 110, so the provision of the guide grooves 140 can also effectively eliminate the obstruction of the pads 200 to the flow of frost water, and the frost water is guided between the two adjacent drain holes 110 through the guide grooves 140 located below the pads 200.

[0039] In some embodiments of the utility model, the outer water retaining plate 120 is provided with a notch 121. When the external environment temperature is at a high level, the frost water in the outer water retaining plate 120 is difficult to condense into ice, so the provision of the notch 121 will facilitate the discharge of the frost water. When the external environment temperature is at a low level, the frost water in the outer water retaining plate 120 condenses into ice. Since the outer water retaining plate 120 is provided with the notch 121, the thickness of the ice layer closer to the notch 121 is thinner, so that the frost water can be directed to the notch 121 for discharge.

[0040] In some embodiments of the utility model, in order to drain the frost water in a centralized manner, a drainage channel 300 is provided below the base 100, all the drain holes 110 are connected to the drainage channel 300, the bottom of the drainage channel 300 is connected to a drainage hole 310, and the drainage hole 310 is connected to a drainage pipe 311. In this embodiment, the bottom surface of the drainage channel 300 is an inclined surface, and the drainage hole 310 is arranged at the lowest position of the inclined surface, which is conducive to the discharge of frost water.

[0041] like Figures 1 to 3As shown, the heat pump according to the second embodiment of the utility model includes the water receiving pan structure according to the first embodiment of the utility model, and also includes a mounting frame 10, a compressor (not shown in the drawings), an evaporator 20 and a heat exchanger (not shown in the drawings), the support 100 is arranged on the mounting frame 10, and the evaporator 20 is fixedly connected to the support 100. Since the heat pump has a variety of different layouts, for some heat pumps, its compressor and heat exchanger can be installed on the support 100 at the same time, while for another part of the heat pump, its compressor and heat exchanger are not installed on the same support 100 as the evaporator 20, but are installed on other positions of the mounting frame 10. Therefore, in addition to limiting the evaporator 20 on the support 100, the utility model does not specifically limit the installation positions of the compressor and the heat exchanger.

[0042] Since the heat pump adopts the water receiving pan structure, the heat pump can prevent the formation of an ice layer on the evaporator 20 without consuming energy.

[0043] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. The water receiving tray structure is characterized by: include: A support platform (100) having a cushion block (200) and a drainage hole (110) on its upper surface; An outer water retaining plate (120) is arranged around the edge of the support platform (100), and the height of the outer water retaining plate (120) is lower than the height of the cushion block (200).

2. The water receiving tray structure according to claim 1, characterized in that: The support platform (100) is provided with an inner water retaining plate (130) on the inner side of the outer water retaining plate (120), and the height of the inner water retaining plate (130) is lower than the height of the cushion block (200).

3. The water receiving tray structure according to claim 2, characterized in that: The inner water baffle plate (130) and the outer water baffle plate (120) together form a hydrophobic space (101), and the hydrophobic hole (110) is arranged in the hydrophobic space (101).

4. The water receiving tray structure according to claim 3, characterized in that: The cushion block (200) is arranged in the hydrophobic space (101).

5. The water receiving tray structure according to claim 3, characterized in that: The outer water retaining plate (120) is provided with a notch (121).

6. The water receiving tray structure according to claim 1 or 4, characterized in that: There are a plurality of cushion blocks (200), and the upper surfaces of all cushion blocks (200) are kept horizontal.

7. The water receiving tray structure according to claim 1 or 3, characterized in that: The number of the hydrophobic holes (110) is plural, and the support platform (100) is provided with a plurality of guide grooves (140), and every two adjacent hydrophobic holes (110) are connected via the guide groove (140).

8. The water receiving tray structure according to claim 1, characterized in that: A drainage channel (300) connected to the drain hole (110) is provided below the support platform (100), and the drainage channel (300) is connected to the drainage hole (310).

9. The water receiving tray structure according to claim 8, characterized in that: The bottom surface of the drainage channel (300) is an inclined surface, and the drainage hole (310) is arranged at the lowest position of the inclined surface.

10. A heat pump, characterized in that It comprises a water receiving tray structure as claimed in any one of claims 1 to 9, and further comprises: a mounting frame (10), a compressor, an evaporator (20) and a heat exchanger, wherein the support platform (100) is arranged on the mounting frame (10), the cushion block (200) is used to support the evaporator (20), and the compressor, evaporator (20) and heat exchanger are all installed on the mounting frame (10).

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