Water pan assembly and heat pump

Abstract

The embodiment of the utility model provides a water pan assembly and a heat pump, and relates to the field of heat exchange. The water pan assembly comprises an upper pan, a lower pan and a filter screen, wherein the upper pan is provided with a first water outlet; the lower disc is connected with the upper disc and is positioned below the first water outlet; a second water outlet is formed in one side, away from the upper disc, of the lower disc; the filter screen is arranged at the first water outlet and used for filtering condensate water flowing into the lower disc through the upper disc so as to prevent the second water outlet from being blocked. The upper disc is used for receiving condensate water separated out by a heat exchanger or a dryer or other heat exchange devices. The lower disc is arranged below the first water outlet, and condensate water received by the upper disc can be discharged from the second water outlet of the lower disc. Fly floccules or large-particle impurities can be prevented from entering the lower plate by arranging the filter screen, so that the second water outlet is prevented from being blocked, and condensate water is prevented from overflowing from the water pan assembly.

Description

Technical Field

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

[0002] With the popularity of air-source heat pumps, indoor heaters have become one of the important heat sources for heating in cold places. Conventional heat pump equipment is equipped with a refrigeration component, which is usually connected to a compressor, a plate heat exchanger, a throttling device and a fin heat exchanger. The fin heat exchanger is used to exchange heat with the air. As it is used, the temperature of the fin heat exchanger is lower than the external temperature. The fin heat exchanger may condense water vapor in the external air and form frost on the surface of the fin heat exchanger. After the unit is shut down, the frost on the fin heat exchanger melts and turns into condensed water. A water tray is designed under the fin heat exchanger to receive the melted condensed water, which is then discharged to the outside through the drain pipe.

[0003] However, since conventional heat pumps obtain heat sources through heat exchange with air, they continuously absorb outdoor air to obtain heat sources under the action of the fan. The outdoor air contains dust, flying catkins, and other light objects. These light objects first adhere to the fin heat exchanger. As the unit is shut down, these light objects will drip onto the water collection tray along with the condensed water on the fins. As the use time increases, it is easy to cause the drain outlet of the water collection tray to be blocked, and eventually the condensed water will overflow the water collection tray, thus affecting the normal life of the user. Utility Model Content

[0004] The utility model provides a water receiving tray assembly and a heat pump, which can prevent the drainage port of the water receiving tray from being blocked.

[0005] The embodiment of the present utility model can be implemented as follows:

[0006] An embodiment of the present invention provides a water receiving tray assembly, which includes:

[0007] an upper plate, the upper plate having a first drain port;

[0008] A lower plate connected to the upper plate and located below the first drain port; a second drain port is formed on a side of the lower plate away from the upper plate;

[0009] A filter screen is provided at the first drain outlet and is used to filter the condensed water flowing into the lower tray through the upper tray to prevent the second drain outlet from being blocked.

[0010] In an optional embodiment, the upper plate is further provided with an overflow port, the position of the overflow port is higher than the position of the first drain port; the overflow port connects the upper plate and the lower plate.

[0011] In an optional embodiment, the upper plate includes a first upper plate and a second upper plate, the first upper plate and the second upper plate are connected and arranged in parallel; the first upper plate is provided with the first drain port, and the first upper plate is connected to the lower plate;

[0012] The first upper plate has a first water receiving cavity, the second upper plate has a second water receiving cavity, the first water receiving cavity and the second water receiving cavity are connected; the depth of the second water receiving cavity is smaller than that of the first water receiving cavity.

[0013] In an optional embodiment, the lower plate includes a bottom plate and four side walls, and the bottom plate and the four side walls together enclose a water storage cavity; at least two of the side walls are provided with support members, and the support members are used to support the filter screen.

[0014] In an optional embodiment, the water tray assembly further includes a fixing member, at least one of the side walls is provided with a fixing member, and the filter screen is detachably connected to the fixing member.

[0015] In an optional embodiment, the filter screen is connected to the fixing member by bolts and butterfly-type cleat nuts.

[0016] In an optional embodiment, the water receiving tray assembly further includes a heating wire, which is disposed in the lower tray, and / or the heating wire is disposed in the upper tray.

[0017] In an optional embodiment, the water receiving tray assembly further includes a restraining member, which is used to fix the heating wire.

[0018] In an optional embodiment, the water receiving tray assembly further includes a drain pipe, which is connected to the second drain port.

[0019] An embodiment of the present invention also provides a heat pump, comprising a heat exchanger and a water receiving pan assembly as described in any of the above embodiments, wherein the water receiving pan assembly is arranged below the heat exchanger, and the upper plate is connected to the heat exchanger and is used to receive condensed water dripping from the heat exchanger.

[0020] The beneficial effects of the water receiving tray assembly and the heat pump of the embodiment of the utility model include:

[0021] The water collection tray assembly includes an upper tray, a lower tray, and a filter screen. The upper tray has a first drain port; the upper tray is used to receive condensed water from heat exchange devices such as heat exchangers or dryers. The lower tray is connected to the upper tray and is located below the first drain port. A second drain port is provided on the side of the lower tray away from the upper tray. The lower tray is positioned below the first drain port and can discharge condensed water received by the upper tray through the second drain port of the lower tray. The filter screen is positioned at the first drain port to filter condensed water flowing through the upper tray into the lower tray to prevent clogging of the second drain port. The filter screen prevents flying flocs or larger particles of impurities from entering the lower tray, thereby preventing clogging of the second drain port and, in turn, preventing condensed water from overflowing from the water collection tray assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of a water receiving tray assembly provided in an embodiment of the present invention from a first perspective;

[0024] Figure 2 A schematic diagram of a water receiving tray assembly provided in an embodiment of the present invention from a second viewing angle;

[0025] Figure 3 This is an exploded schematic diagram of the water receiving tray assembly provided in an embodiment of the present utility model.

[0026] Icon: 1000-water collection tray assembly; 100-upper plate; 110-first upper plate; 111-first drain outlet; 112-first water receiving chamber; 113-overflow outlet; 120-second upper plate; 121-second water receiving chamber; 200-lower plate; 210-bottom plate; 211-second drain outlet; 220-side wall; 300-filter screen; 400-support member; 500-fixing member; 600-butterfly-shaped ram nut; 700-heating wire; 800-restraint member; 900-drain pipe. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] 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 claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0030] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0032] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0033] With the popularity of air-source heat pumps, indoor heaters have become one of the important heat sources for heating in cold places. Conventional heat pump equipment is equipped with a refrigeration component, which is usually connected to a compressor, a plate heat exchanger, a throttling device and a fin heat exchanger. The fin heat exchanger is used to exchange heat with the air. As it is used, the temperature of the fin heat exchanger is lower than the external temperature. The fin heat exchanger may condense water vapor in the external air and form frost on the surface of the fin heat exchanger. After the unit is shut down, the frost on the fin heat exchanger melts and turns into condensed water. A water tray is designed under the fin heat exchanger to receive the melted condensed water, which is then discharged to the outside through the drain pipe. However, since conventional heat pumps obtain heat sources through heat exchange with air, they continuously absorb outdoor air to obtain heat sources under the action of the fan. The outdoor air contains dust, flying catkins, and other light objects. These light objects first adhere to the fin heat exchanger. As the unit is shut down, these light objects will drip onto the water collection tray along with the condensed water on the fins. As the use time increases, it is easy to cause the drain outlet of the water collection tray to be blocked, and eventually the condensed water will overflow the water collection tray, thus affecting the normal life of the user.

[0034] Based on this, see Figure 1 and Figure 2 The water tray assembly 1000 provided in the embodiments of the present invention can effectively solve the aforementioned technical problems. The water tray assembly 1000 can prevent objects such as flying catkins in the condensed water from clogging the drain outlet of the water tray assembly 1000. The water tray assembly 1000 can be used in heat exchange devices such as heat pumps and air conditioners. All heat exchange devices incorporating the water tray assembly 1000 have the same functions as described above, and are not further described here.

[0035] The heat pump provided in the embodiment of the present invention includes a heat exchanger and a water pan assembly 1000. The water pan assembly 1000 is disposed below the heat exchanger. The upper pan 100 is connected to the heat exchanger and is used to receive condensed water dripping from the heat exchanger. Of course, the heat pump may also include an evaporator, condenser, compressor, expansion valve, and other structures, depending on actual usage requirements and is not limited here.

[0036] Figure 1 This is a schematic diagram of a water tray assembly 1000 provided in an embodiment of the present invention from a first perspective; Figure 2 This is a schematic diagram of a second viewing angle of the water tray assembly 1000 provided in an embodiment of the present invention; Figure 3 This is an exploded schematic diagram of the water receiving tray assembly 1000 provided in an embodiment of the present invention.

[0037] like Figure 1 、 Figure 2 and Figure 3 As shown, the water receiving tray assembly 1000 in this embodiment includes an upper tray 100, a lower tray 200, and a filter screen 300. The upper tray 100 has a first drain port 111; the lower tray 200 is connected to the upper tray 100 and is located below the first drain port 111; a second drain port 211 is formed on the side of the lower tray 200 away from the upper tray 100; and the filter screen 300 is disposed at the first drain port 111 to filter condensed water flowing through the upper tray 100 into the lower tray 200 to prevent clogging of the second drain port 211. Specifically, in this embodiment, the opening area of the first drain port 111 is greater than or equal to the area of the bottom plate 210 of the lower tray 200. This design facilitates the discharge of all condensed water received by the upper tray 100 through the drain port of the lower tray 200. The upper tray 100 is used to receive condensed water from heat exchange devices such as heat exchangers or dryers. The lower tray 200 is located below the first drain port 111 and drains condensed water from the upper tray 100 through the second drain port 211 of the lower tray 200. The filter 300 prevents flying flocs and larger particles from entering the lower tray 200, thereby preventing blockage in the second drain port 211 and preventing condensed water from overflowing from the water tray assembly 1000.

[0038] Although the flying flocs will not block the second drain port 211, they will accumulate on the filter screen 300. When the flying flocs accumulate too much, they may block the filter screen 300 and affect normal drainage. Figure 1 、 Figure 2 and Figure 3 In this embodiment, the upper tray 100 is also provided with a protruding overflow port 113, which is positioned higher than the first drain port 111. The overflow port 113 connects the upper tray 100 and the lower tray 200, but its height is lower than the periphery of the upper tray 100. That is, the vertical distance between the surface of the overflow port 113 and the second drain port 211 along the Z-axis is greater than the vertical distance between the first drain port 111 and the second drain port 211 along the Z-axis. Under normal circumstances, condensed water flows into the lower tray 200 through the first drain port 111. Only after the filter screen 300 is clogged, the condensed water accumulates in the upper tray 100, and the water level gradually rises, before it flows out of the overflow port 113 and is discharged from the lower tray 200. Specifically, in this embodiment, a square wall is provided in the upper tray 100 to enclose the protruding overflow port 113. Of course, the overflow port 113 can also be formed in a circular or other shaped structure, which is not limited here. In addition, the diameter of the overflow port 113 in this embodiment is the same as the diameter of the drain pipe 900. When large flying catkins or leaves are poured into the overflow port 113, the second drain port 211 will not be blocked.

[0039] To increase the area of the water receiving tray for condensed water, the upper tray 100 in this embodiment includes a first upper tray 110 and a second upper tray 120, which are connected and arranged side by side. The first upper tray 110 is provided with a first drain port 111 and is connected to the lower tray 200. The first upper tray 110 has a first water receiving chamber 112, and the second upper tray 120 has a second water receiving chamber 121, which are connected to each other. The depth of the second water receiving chamber 121 is smaller than that of the first water receiving chamber 112. This design increases the area for condensed water while facilitating the rapid flow of water from the second upper tray 120 to the first upper tray 110 for drainage.

[0040] Please continue reading Figure 1 、 Figure 2 and Figure 3Regarding the aforementioned "filter 300 disposed at the location of the first drain outlet 111," specifically, the lower wall 200 in this embodiment comprises a bottom plate 210 and four side walls 220, which together enclose a water storage chamber. Support members 400 are provided on at least two of the side walls 220 to support the filter 300. Specifically, in this embodiment, two support members 400 are spaced apart on each of the opposing side walls 220 to support and install the filter 300. Of course, support members 400 may also be provided on all three or all four side walls 220, and this is not a limitation here. Furthermore, the number of support members 400 provided on each side wall 220 may be one, three, or four, depending on the actual installation situation and is not a limitation here. To simplify the structure and installation, the support members 400 in this embodiment are specifically support brackets. Of course, other support structures or support members 400 may also be used, as long as they facilitate the installation of the filter 300, and this is not a limitation here.

[0041] To prevent the filter 300 from moving relative to the first drain outlet 111 during the water filtration process, the water tray assembly 1000 in this embodiment further includes a fixing member 500. The fixing member 500 is disposed on at least one of the side walls 220, and the filter 300 is detachably connected to the fixing member 500. Specifically, the filter 300 and the fixing member 500 are connected via bolts and butterfly-shaped clevis nuts 600. The butterfly-shaped clevis nuts 600 are compact and easy to install, requiring no tools and can be installed by hand, making assembly and disassembly very convenient and aesthetically pleasing. Of course, other nut shapes may also be used, and this is not intended to be limiting. To simplify the structure and installation, the fixing member 500 in this embodiment is a fixed angle bracket, and a bolt or screw structure may be integrally provided with the fixing angle bracket. Alternatively, the filter 300 may be detachably connected to the upper tray 100 or the lower tray 200 using a snap-fit connection, and this is not intended to be limiting, as long as the filter 300 is easily assembled and disassembled.

[0042] See also Figure 1 、 Figure 2 and Figure 3The water receiving tray assembly 1000 in this embodiment also includes a drain pipe 900, which is connected to the second drain port 211. The drain pipe 900 is used to discharge the condensed water in the lower tray 200 to the outside of the heat exchanger and other devices. In addition, the water receiving tray assembly 1000 also includes a heating wire 700, which is arranged in the lower tray 200, and / or the heating wire 700 is arranged in the upper tray 100. Specifically, the lower tray 200 in this embodiment has a water storage cavity, and the heating wire 700 is arranged in the water storage cavity. In addition, the heating wire 700 is also arranged in the drain pipe 900. Of course, the heating wire 700 can also be arranged in the overflow port 113, which is determined according to actual needs and is not limited here. The setting of the heating wire 700 can firstly effectively prevent the surface of the water receiving tray assembly 1000 from ice. By embedding the electric heating wire 700 within the insulation material of the water tray assembly 1000, the surface of the water tray assembly 1000 is kept above freezing, preventing condensation from forming on the surface of the water tray assembly 1000. This solves the problem of poor drainage caused by ice formation in the water tray assembly 1000. Furthermore, the installation of the heating wire 700 can also reduce energy consumption. The heat generated by the electric heating wire 700, combined with the insulation material, effectively reduces heat loss, thereby reducing energy consumption in cooling devices such as cold storage.

[0043] In order to fix the heating wire 700, the water receiving tray assembly 1000 in this embodiment further includes a restraining member 800, which is used to fix the heating wire 700. Of course, snap fasteners can also be provided in the lower tray 200 and the upper tray 100 to install and fix the heating wire 700, which is not limited here.

[0044] According to the water tray assembly 1000 provided in this embodiment, its working principle is as follows:

[0045] When outdoor fluff flows down the drain pan along with the condensed water, it first passes through the filter 300, filtering out the fluff and preventing it from clogging the second drain port 211 and drain pipe 900. When the fluff fills the entire filter 300 and the condensed water cannot drain, and the water level rises above the overflow port 113, the condensed water flows from the overflow port 113 into the lower pan 200 and is discharged to the outside through the second drain port 211 and drain pipe 900. To clean the fluff from the filter 300, simply unscrew the butterfly nut 600, remove the filter 300, and clean it.

[0046] In summary, the drain pan assembly 1000 includes an upper pan 100, a lower pan 200, and a filter 300. The upper pan 100 has a first drain port 111. The lower pan 200 is connected to the upper pan 100 and located below the first drain port 111. A second drain port 211 is defined on the side of the lower pan 200 away from the upper pan 100. The filter 300 is positioned at the location of the first drain port 111 and is used to filter condensed water flowing through the upper pan 100 into the lower pan 200 to prevent clogging of the second drain port 211. The upper pan 100 is used to receive condensed water from heat exchange devices such as heat exchangers or dryers. The lower pan 200 is positioned below the first drain port 111 and can drain condensed water received by the upper pan 100 through the second drain port 211 of the lower pan 200. The filter 300 can prevent flying flocs or larger particles of impurities from entering the lower tray 200 , thereby preventing the second drain port 211 from being blocked and further preventing the condensed water from overflowing from the water tray assembly 1000 .

[0047] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A water tray assembly, characterized in that: include: an upper plate (100), wherein the upper plate (100) has a first drain port (111); a lower plate (200), the lower plate (200) being connected to the upper plate (100) and being located below the first drain port (111); a second drain port (211) being provided on a side of the lower plate (200) away from the upper plate (100); A filter screen (300) is provided at the first drain outlet (111) and is used to filter condensed water flowing into the lower tray (200) through the upper tray (100) to prevent the second drain outlet (211) from being blocked.

2. The water tray assembly according to claim 1, characterized in that: The upper plate (100) is also provided with a protruding overflow port (113), the position of the overflow port (113) being higher than the position of the first drain port (111); the overflow port (113) is in communication with the upper plate (100) and the lower plate (200).

3. The water tray assembly according to claim 1, characterized in that: The upper plate (100) comprises a first upper plate (110) and a second upper plate (120), wherein the first upper plate (110) and the second upper plate (120) are connected and arranged in parallel; the first upper plate (110) is provided with the first drain port (111), and the first upper plate (110) is connected to the lower plate (200); The first upper plate (110) has a first water receiving cavity (112), the second upper plate (120) has a second water receiving cavity (121), the first water receiving cavity (112) and the second water receiving cavity (121) are connected; the depth of the second water receiving cavity (121) is smaller than the depth of the first water receiving cavity (112).

4. The water tray assembly according to claim 1, characterized in that: The lower plate (200) comprises a bottom plate (210) and four side walls (220), wherein the bottom plate (210) and the four side walls (220) together enclose a water storage cavity; the bottom plate (210) is provided with the second drain outlet (211); and at least two of the side walls (220) are provided with support members (400), wherein the support members (400) are used to support the filter screen (300).

5. The water tray assembly according to claim 4, characterized in that: The water receiving tray assembly (1000) further comprises a fixing member (500), wherein the fixing member (500) is provided on at least one of the side walls (220), and the filter screen (300) is detachably connected to the fixing member (500).

6. The water tray assembly according to claim 5, characterized in that: The filter screen (300) is connected to the fixing member (500) via bolts and butterfly-shaped cleat nuts (600).

7. The water tray assembly according to any one of claims 1 to 6, characterized in that: The water receiving tray assembly (1000) further comprises a heating wire (700), wherein the heating wire (700) is arranged in the lower tray (200), and / or the heating wire (700) is arranged in the upper tray (100).

8. The water tray assembly according to claim 7, characterized in that: The water receiving tray assembly (1000) further comprises a restraining member (800), and the restraining member (800) is used to fix the heating wire (700).

9. The water tray assembly according to claim 1, characterized in that: The water receiving tray assembly (1000) further comprises a drain pipe (900), and the drain pipe (900) is connected to the second drain port (211).

10. A heat pump, characterized in that: It comprises a heat exchanger and a water receiving tray assembly (1000) according to any one of claims 1 to 9, wherein the water receiving tray assembly (1000) is arranged below the heat exchanger, and the upper tray (100) is connected to the heat exchanger and is used to receive condensed water dripping from the heat exchanger.

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