Heat pump drainage structure

Abstract

The application discloses a heat pump drainage structure, which comprises a fin support seat, a fin support frame, an outer frame, a middle cross beam arranged in the middle of the outer frame, a main beam body, two water receiving boxes connected to the two ends of the main beam body, a fin heat exchanger, and a water collecting tank. The middle cross beam is connected to the outer frame through the water receiving boxes. The fin heat exchanger is installed on the fin support seat around the inner periphery of the outer frame. At least two water collecting tanks are arranged, all the water collecting tanks are arranged along the projection path of the bottom of the fin heat exchanger below the fin support frame, and the condensed water of the fin heat exchanger is received by the water collecting tanks and the water receiving boxes. The application can realize full collection of the condensed water of the fin heat exchanger, avoid the condensed water from dropping on the fin support seat and overflowing outward to cause the leakage of the machine box, or long-time gathering on the fin support seat to cause icing and other problems.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat pumps, in particular to a heat pump drainage structure. BACKGROUND

[0002] In winter, the heat pump unit running in the high-cold and high-humidity north is seriously frostbitten, and the low-temperature water melted by defrosting is low in temperature. In addition, in the cold outdoor environment, the condensed water is easy to freeze and accumulate at the bottom of the finned heat exchanger, thereby affecting the heat exchange of the finned heat exchanger, and even causing the heat exchange pipe in the finned heat exchanger to burst. If the ice accumulation is serious, the whole machine may be covered with ice, which seriously affects the reliable operation of the machine. Therefore, it is usually necessary to collect and quickly drain the water after the fin defrosting. In order to facilitate drainage, the existing heat pump generally opens a plurality of drainage holes in the fin bottom plate, and installs a water collecting device with a heater below the fin bottom plate. The condensed water (including condensate water and defrosting water) on the finned heat exchanger drips onto the fin bottom plate, and then drips into a plurality of water receiving grooves through the drainage holes in the fin bottom plate. The accumulated water in each water receiving groove is then drained through a drain pipe.

[0003] However, the existing heat pump drainage structure has poor drainage effect, because the water receiving groove can only be disconnected at the middle beam on the fin bottom plate. The condensed water above the middle beam of the finned heat exchanger will directly drip onto the area above the middle beam on the surface of the fin bottom plate. After the accumulation of this part of water, it will overflow in four directions along the surface of the fin bottom plate. In the light, it will overflow from the gap to the outside of the machine box or enter the machine unit through the gap, causing the phenomenon of machine box water leakage. When the environmental temperature is too low, the condensed water accumulated on the fin bottom plate cannot be quickly drained through the drainage hole, and is easy to re-freeze on the surface of the fin bottom plate, causing ice accumulation at the bottom of the finned heat exchanger. That is, the existing heat pump drainage structure cannot effectively collect the condensed water in the area above the middle beam on the surface of the fin bottom plate, resulting in the problems of machine box water leakage or ice formation on the surface of the fin bottom plate. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a heat pump drainage structure which can solve the above-mentioned problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the following technical solutions are adopted in the present application:

[0006] A heat pump drainage structure comprises:

[0007] A fin support seat comprises a fin support frame, the fin support frame comprises an outer frame and a middle beam arranged in the middle of the outer frame, and the middle beam comprises a main beam body and two water receiving boxes connected to the two ends of the main beam body, respectively. The middle beam is connected with the outer frame through the water receiving boxes.

[0008] Fin heat exchanger, mounted on the fin support seat around the inner periphery of the outer frame;

[0009] Water collecting tank, at least two are provided, all the water collecting tanks are arranged along the projection path of the bottom of the fin heat exchanger below the fin support frame, and the condensate water of the fin heat exchanger is collected through the water collecting tank and the water collecting box.

[0010] Optionally, the water collecting box is in communication with the water collecting tank, and the water in the water collecting tank can be collected into the water collecting box for unified discharge.

[0011] Optionally, the water collecting box is recessed downward relative to the main beam body, and the water collecting box is provided with a position-avoiding notch corresponding to the water collecting tank at the connection position of the adjacent two water collecting tanks; the end of the water collecting tank abutting the water collecting box is provided as a drain port, the water collecting tank extends above the water collecting box through the position-avoiding notch, so that the drain port is placed above the water collecting box, and the water collecting tank realizes water discharge to the water collecting box.

[0012] Optionally, the end of the water collecting tank with the drain port is provided with a downward-bent drainage fin.

[0013] Optionally, the water collecting box is provided with a first lap plate extending towards the center of the main beam body at the top side of the side wall plate abutting the main beam body, and the first lap plate is lapped and fixed to the lower surface of the main beam body.

[0014] Optionally, the main beam body comprises a beam top plate and two beam side plates downward-bent at two opposite sides of the beam top plate, the first lap plate comprises a lap top plate and two lap side plates downward-bent at two sides of the lap top plate, the lap top plate abuts the lower surface of the beam top plate, and the two lap side plates abut the opposite sides of the two lap side plates, respectively.

[0015] Optionally, the main beam body further comprises a buckle plate downward-bent at the end of the beam top plate, and the buckle plate is lapped on the inner wall of the side wall plate of the water collecting box abutting the main beam body.

[0016] Optionally, the water collecting box is provided with a second lap plate extending away from the main beam body at the top side of the side wall plate abutting the outer frame, and the second lap plate is lapped and fixed on the outer frame.

[0017] Optionally, the outer frame comprises a plurality of outer beams, the outer beam comprises an outer beam panel and an upper outer beam inner panel and a lower outer beam inner panel inward-bent at the upper and lower sides of the outer beam panel, respectively, a fin bottom disc is mounted on the top surface of the upper outer beam inner panel, and the second lap plate is lapped and fixed on the lower outer beam inner panel.

[0018] Optionally, the fin support seat further comprises a middle support column connected to the bottom side of the outer frame, the middle support column comprises a middle support column panel and middle support column side plates respectively inwardly bent on the left and right sides of the middle support column panel, and the water receiving box is provided with two connecting wing plates close to one side of the middle support column, and the two connecting wing plates are respectively abutted and fixed to the opposite sides of the two middle support column side plates.

[0019] The beneficial effects of the present application are:

[0020] 1. The present application provides a heat pump drainage structure, wherein the middle cross beam in the fin support seat is arranged in a structure combined with a main beam body and a water receiving box, the water receiving box is connected to the end of the main beam body, and through the connection of the water receiving box and the outer frame, the function of the original middle cross beam fixed support is retained, and the water receiving box is further provided at the end of the middle cross beam, so as to avoid the problem of condensed water flowing out through the joint gap between the middle cross beam and the outer frame, and prevent the unit from leaking inside.

[0021] 2. The present application provides a heat pump drainage structure, wherein a water collecting groove with an inclination angle is arranged below the fins, and the water receiving box is located below the end of the water collecting groove, which together with the water collecting groove receives the condensed water of the fin heat exchanger, so as to realize the full collection of the condensed water of the fin heat exchanger, avoid the condensed water from dropping on the fin support seat and overflowing outward to cause the leakage of the machine box, or long-term accumulation on the fin support seat to cause icing and other problems, and also realize concentrated drainage. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described in detail below according to the drawings and embodiments.

[0023] Figure 1 A three-dimensional structure schematic diagram of the heat pump drainage structure described in the embodiments of the present application;

[0024] Figure 2 A three-dimensional structure schematic diagram of the heat pump drainage structure described in the embodiments of the present application; Figure 1

[0025] Figure 3 A three-dimensional structure schematic diagram of the fin support seat and the water collecting groove combination structure described in the embodiments of the present application;

[0026] Figure 4 A three-dimensional structure schematic diagram of the fin support seat and the water collecting groove combination structure described in the embodiments of the present application; Figure 3

[0027] A three-dimensional structure schematic diagram of the fin support seat and the water collecting groove combination structure described in the embodiments of the present application; Figure 5

[0028] A three-dimensional structure schematic diagram of the fin support seat and the water collecting groove combination structure described in the embodiments of the present application; Figure 6

[0029] A three-dimensional structure schematic diagram of the fin support seat and the water collecting groove combination structure described in the embodiments of the present application; Figure 7 ​Structure diagram of the water collecting tank according to the embodiment of the present application;

[0030] Figure 8 Structure diagram of the installation of the intermediate cross beam according to the embodiment of the present application;

[0031] Figure 9 Structure diagram of the intermediate cross beam according to the embodiment of the present application;

[0032] Figure 10 Structure diagram of the intermediate cross beam according to the embodiment of the present application;

[0033] Figure 11 Structure diagram of the intermediate cross beam according to the embodiment of the present application;

[0034] Figure 12 Structure diagram of the installation of the water collecting box according to the embodiment of the present application;

[0035] Figure 13 Structure diagram of the water collecting box according to the embodiment of the present application; Figure 12 Structure diagram of the water collecting box according to the embodiment of the present application.

[0036] Structure diagram of the water collecting box according to the embodiment of the present application.

[0037] 1, fin heat exchanger; 2, fin support seat; 21, fin support frame; 211, outer frame; 2111, outer beam; 21111, outer beam panel; 21112, upper outer beam inner plate; 21113, lower outer beam inner plate; 212, intermediate cross beam; 2121, main beam body; 21211, beam body top plate; 21212, beam body side plate; 21213, buckle plate; 21214, clamping tongue; 2122, water collecting box; 21221, box bottom plate; 21222, first wall plate; 21223, second wall plate; 21224, third wall plate; 21225, fourth wall plate; 21226, position avoiding gap; 21227, first lap plate; 212271, lap top plate; 212272, lap side plate; 212273, insertion hole; 21228, second lap plate; 21229, connecting wing plate; 22, fin bottom plate; 221, drainage hole; 222, support sheet; 23, corner column; 24, intermediate support column; 241, intermediate support column panel; 242, intermediate support column side plate; 3, water collecting tank; 31, drainage port; 32, drainage sheet; 4, drainage pipe. DETAILED DESCRIPTION

[0038] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present application are described in further detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0041] In order to facilitate drainage, the existing heat pump generally opens several drainage holes in the fin bottom plate, and installs a water collecting device with a heater below the fin bottom plate. The condensed water on the fin heat exchanger drips onto the fin bottom plate, and then drips into multiple water collecting grooves through the drainage holes of the fin bottom plate. The accumulated water in each water collecting groove is then discharged through a drainage pipe.

[0042] However, the existing heat pump drainage structure has poor drainage effect. The reason is that the existing large fin base needs to be fixed by an intermediate cross beam to prevent deformation caused by supporting large fins. The fixation of the fin bottom plate and the intermediate cross beam causes the water collecting groove to be disconnected at the intermediate cross beam. The condensed water above the intermediate cross beam of the fin heat exchanger will directly drip onto the area of the fin bottom plate surface above the intermediate cross beam. The accumulated water in this area will overflow in four directions along the surface of the fin bottom plate. In the light case, the water will overflow from the gap to the outside of the cabinet or enter the internal unit through the gap, causing the cabinet to leak. In the more serious case, when the ambient temperature is too low, the condensed water accumulated on the fin bottom plate cannot be quickly discharged through the drainage hole, and is easy to re-ice on the surface of the fin bottom plate, causing ice accumulation at the bottom of the fin heat exchanger. The existing solution generally changes the structure of the intermediate cross beam or fills the connecting gap to prevent the condensed water from overflowing. However, due to the inability to effectively collect the condensed water in the area of the fin bottom plate surface above the intermediate cross beam, the existing heat pump drainage structure still has the problems of cabinet leakage or icing on the surface of the fin bottom plate.

[0043] In order to solve the above technical problems, the present application provides a heat pump drainage structure Figures 1-13The embodiment shown provides a heat pump drainage structure applied to a heat pump unit, comprising:

[0044] The fin support seat 2 comprises a fin support frame 21, which comprises an outer frame 211 and an intermediate cross beam 212 arranged in the middle of the outer frame 211; the intermediate cross beam 212 comprises a main beam body 2121 and two water receiving boxes 2122 connected to the two ends of the main beam body 2121 respectively, and the intermediate cross beam 212 is connected with the outer frame 211 through the water receiving boxes 2122;

[0045] The fin heat exchanger 1 is installed on the fin support seat 2 around the inner periphery of the outer frame 211;

[0046] The water collecting tank 3 is arranged below the fin support frame 21 along the projection path of the bottom of the fin heat exchanger 1, and the condensate water of the fin heat exchanger 1 is received by the water collecting tank 3 and the water receiving boxes 2122 together.

[0047] Specifically, the fin support seat 2 is part of a heat pump cabinet, which divides the heat pump cabinet into two independent chambers from top to bottom, the upper chamber is installed with the fin heat exchanger 1, and the lower chamber is installed with components such as an electric control box, a valve, a compressor and other necessary components; the fin heat exchanger 1 is arranged on the fin support seat 2 along the inner periphery of the fin support seat 2, and a fan is also installed on the top of the cabinet, under the driving of the fan, external air enters from the periphery of the upper chamber, exchanges heat through the fin heat exchanger 1, and then is discharged from the fan at the top.

[0048] Referring to Figures 1-2 The fin heat exchanger 1 arranged above the fin support seat 2 can be a U-shaped heat exchanger or a combination of multiple heat exchangers. In the structure of the fin support seat 2, the fin support frame 21 serves as the main supporting frame, and a fin bottom plate 22 is further arranged in the fin support frame 21 to separate the upper and lower chambers, and the fin heat exchanger 1 is installed on the fin bottom plate 22. To realize downward drainage, the fin bottom plate 22 is provided with a drainage hole 221 extending along the arrangement path of the fin heat exchanger 1, and Figure 5 The water collecting tank 3 and the water receiving boxes 2122 together form a water receiving device arranged on the lower side of the fin bottom plate 22 along the drainage hole 221, so that the condensate water on the fin heat exchanger 1 can directly drop through the drainage hole 221 into the water collecting tank 3 and the water receiving boxes 2122, thereby realizing the full collection function of the drainage of the fin heat exchanger 1. To provide support for the bottom of the fin heat exchanger 1, the fin bottom plate 22 is provided with a support piece 222 crossing the drainage hole 221, which supports the bottom of the fin heat exchanger 1 during installation, thereby fixing the fin heat exchanger 1 directly above the drainage hole 221.

[0049] To avoid the problem of icing after the condensed water drops into the water collecting tank 3 and the water receiving box 2122 under low temperature conditions, heating devices can be arranged on the outer wall surfaces of the water collecting tank 3 and the water receiving box 2122 respectively; at the same time, to facilitate the timely drainage of the collected water, the water collecting tank 3 and the water receiving box 2122 can be respectively connected with a drain pipe 4 for drainage, or the water in each water collecting tank 3 and water receiving box 2122 can be collected and then drained collectively, thereby simplifying the drainage structure.

[0050] In summary, based on the heat pump drainage structure of the present embodiment, the middle cross beam 212 in the fin support seat 2 is arranged in the structure of the combination of the main beam body 2121 and the water receiving box 2122, the water receiving box 2122 is connected to the end of the main beam body 2121, and the function of the middle cross beam 212 is retained through the connection of the water receiving box 2122 with the outer frame 211. In addition, the water receiving box 2122 is located just below the finned heat exchanger 1, which together with the water collecting tank 3 receives the condensed water of the finned heat exchanger 1, thereby achieving full collection of the condensed water of the finned heat exchanger 1 and avoiding the problems of water spillover outside the fin support seat 2 to cause leakage of the machine case, or long-term accumulation on the fin support seat 2 to cause icing and other problems.

[0051] In an embodiment, the water receiving box 2122 is in communication with the water collecting tank 3, and the water in the water collecting tank 3 can be collected into the water receiving box 2122 for unified drainage.

[0052] As the connection point between the two water collecting tanks 3, the water receiving box 2122 can not only collect the condensed water in the collection blind area that cannot be collected by the water collecting tank 3, but also collect the water in the two water collecting tanks 3 after the water is converged, and then drain the water collectively, without the need to arrange a drain pipe 4 for each water collecting tank 3. Only a drain pipe 4 needs to be connected to the bottom of the water receiving box 2122 for collective drainage. Therefore, this structure has the beneficial effect of simplifying the arrangement of the drainage pipeline.

[0053] In an embodiment, the water receiving box 2122 is arranged in a downwardly recessed manner relative to the main beam body 2121, and the connection positions of the water receiving box 2122 with the two adjacent water collecting tanks 3 are respectively provided with avoidance notches 21226 corresponding to the water collecting tanks 3. The end of the water collecting tank 3 abutting against the water receiving box 2122 is arranged as a drain port 31, and the water collecting tank 3 extends above the water receiving box 2122 through the avoidance notches 21226, so that the drain port 31 is arranged above the water receiving box 2122, thereby realizing the drainage of the water collecting tank 3 to the water receiving box 2122.

[0054] Specifically, referring to Figure 10In the structure of the water receiving box 2122, the top is open, and has a certain volume, which specifically includes a box bottom plate 21221 and a surrounding wall surrounding the periphery of the box bottom plate 21221. The surrounding wall specifically includes opposite first and second wall plates 21222 and 21223, and opposite third and fourth wall plates 21224 and 21225, which are side wall plates connecting the water collecting groove 3 on both sides. In this scheme, the third and fourth wall plates 21224 and 21225 are directly provided with avoiding notches 21226 to avoid the water collecting groove 3, so that the end of the water collecting groove 3 can extend into the water receiving box 2122. The water in the water collecting groove 3 can be directly discharged into the water receiving box 2122 through the water outlet 31 of the end, without the need to set a pipe communication between the water collecting groove 3 and the water receiving box 2122, thereby simplifying the communication structure of the water collecting groove 3 and the water receiving box 2122.

[0055] In order to realize the automatic drainage of the water collecting groove 3, the inner bottom wall of the water collecting groove 3 is provided as a slope surface, with reference to Figures 6-7 In order to cooperate with the U-shaped structure of the top, the water collecting groove 3 is also formed in a U shape, and the two ends are respectively formed with water outlets 31. The water droplets falling into the water collecting groove 3 will flow along the bottom surface of the water collecting groove 3 from the high point to the low point under the action of gravity, and finally fall into the water receiving box 2122. That is, this structure can ensure smooth drainage inside the water collecting groove 3, and avoid water accumulation and ice formation in the water collecting groove 3.

[0056] In another embodiment, the water collecting groove 3 and the water receiving box 2122 are arranged at the same height, and a drainage pipe is arranged between the water collecting groove 3 and the water receiving box 2122 to guide the water in the water collecting groove 3 to the water receiving box 2122, and then discharged through the drain pipe 4 connected to the water receiving box 2122.

[0057] In an embodiment, with reference to Figure 7 The end of the water collecting groove 3 provided with the water outlet 31 is provided with a downwardly bent drainage piece 32.

[0058] Specifically, the inventor found that under the action of airflow, the water left at the water outlet 31 of the water collecting groove 3 tends to flow outwardly and reversely along the lower surface of the water collecting groove 3. The drainage piece 32 can provide shielding and solve the reverse flow problem.

[0059] In an embodiment, Figures 8-11 The water receiving box 2122 is provided with a first lap plate 21227 extending towards the center of the main beam body 2121 on the top side of the side wall plate of the main beam body 2121, and the first lap plate 21227 is lapped and fixed to the lower surface of the main beam body 2121.

[0060] Specifically, the first lap plate 21227 is arranged on the top side of the first wall plate 21222 of the water receiving box 2122 and is lap-connected with the main beam body 2121, which can effectively increase the bonding area between the water receiving box 2122 and the main beam body 2121 and improve the reliability of the connection therebetween. The top surface of the main beam body 2121 needs to support the fin bottom plate 22, and in order to improve the support reliability and the air tightness of the isolation, the first lap plate 21227 is lap-connected with the lower surface of the main beam body 2121, which can avoid the problem that the first lap plate 21227 protrudes upward from the upper surface of the main beam body 2121 and damages the close connection between the upper surface of the main beam body 2121 and the fin bottom plate 22.

[0061] The connection between the first lap plate 21227 and the main beam body 2121 can adopt a non-detachable connection form such as welding or rivet connection or a detachable connection form such as screw and nut connection.

[0062] In an embodiment, referring to Figures 10-11 , the main beam body 2121 comprises a beam top plate 21211 and two beam side plates 21212 respectively downwardly bent at two opposite sides of the beam top plate 21211, and the first lap plate 21227 comprises a lap top plate 212271 and two lap side plates 212272 respectively downwardly bent at two sides of the lap top plate 212271, the lap top plate 212271 abuts against the lower surface of the beam top plate 21211, and the two lap side plates 212272 respectively abut against opposite sides of the two lap side plates 212272.

[0063] Specifically, the main beam body 2121 is arranged in a C-shaped beam structure composed of the beam top plate 21211 and the two beam side plates 21212, which has the advantages of small material consumption and strong bearing capacity. The first lap plate 21227 is arranged in a corresponding C-shaped structure, which can achieve the effect of being in complete contact with the lower wall surface of the main beam body 2121 and effectively improve the reliability. More importantly, a certain cavity is formed between the two lap side plates 212272, which can fix the lap side plates 212272 and the beam side plates 21212 by screw connection, meet the requirement of separability between the main beam body 2121 and the water receiving box 2122, and avoid the protrusion of the connecting screws on the top surface of the main beam body 2121.

[0064] In an embodiment, the main beam body 2121 further comprises a buckle plate 21213 downwardly bent at the end of the beam top plate 21211, and the buckle plate 21213 is lap-connected with the inner wall of the side wall plate of the water receiving box 2122 abutting against the main beam body 2121.

[0065] The buckle plate 21213 downwardly bent at the end of the beam top plate 21211 and lap-connected with the inner wall surface of the first wall plate 21222 can improve the reliability of the connection between the main beam body 2121 and the water receiving box 2122.

[0066] To further improve the reliability, with reference to Figure 11 The top plate 21211 of the beam body is provided with a downwardly bent clamping tongue 21214, and the top plate 21227 is provided with a hole 212273, and the clamping tongue 21214 is inserted into the hole 212273, thereby improving the reliability of the connection between the main beam body 2121 and the water receiving box 2122.

[0067] In an embodiment, with reference to Figures 12-13 The water receiving box 2122 is provided with a second clamping plate 21228 extending away from the main beam body 2121 on the top side of the side wall plate of the outer frame 211, and the second clamping plate 21228 is clamped and fixed on the outer frame 211.

[0068] Specifically, the second clamping plate 21228 is directly clamped on the outer frame 211 and then fixed, which has the advantages of good load-bearing capacity and simple connection. Specifically, the connection between the second clamping plate 21228 and the outer frame 211 can be welding, rivet connection, or screw connection.

[0069] Regarding the specific structure of the fin support seat 2, with reference to Figure 4 Specifically, it includes a fin support frame 21, a fin bottom plate 22, a corner column 23, and an intermediate support 24. The fin support frame 21 includes an outer frame 211 and an intermediate cross beam 212 arranged in the middle of the outer frame 211. The outer frame 211 includes four outer beams 2111, and the ends of the four outer beams 2111 are connected to the corner column 23 to form a square frame. The fin bottom plate 22 is installed on the fin support frame 21. The outer beam 2111 includes long and short side beams, and the intermediate cross beam 212 is connected between the two long side beams to improve the stability of the support for the fin bottom plate 22 and the fin heat exchanger 1 on the top. At the same time, to avoid bending of the long side beam under load, an intermediate support 24 is arranged in the middle of the long side beam (i.e., at the position connected to the intermediate cross beam 212) to provide support.

[0070] In an embodiment, the outer frame 211 includes a plurality of outer beams 2111, and the outer beam 2111 includes an outer beam panel 21111 and an upper outer beam inner panel 21112 and a lower outer beam inner panel 21113 inwardly bent on the upper and lower sides of the outer beam panel 21111. The fin bottom plate 22 is installed on the top surface of the upper outer beam inner panel 21112, and the second clamping plate 21228 is clamped and fixed on the lower outer beam inner panel 21113.

[0071] Specifically, the outer beam panel 21111 is a plate body located on the outer wall surface side of the heat pump case, the inner side of the outer beam panel 21111 is the side close to the center of the heat pump case, and the upper outer beam inner panel 21112 and the lower outer beam inner panel 21113 are respectively formed by bending inward on the upper and lower sides of the outer beam panel 21111, which can provide support for the installation of the fin bottom plate 22 and the second lap plate 21228 respectively, and at the same time, by using the height of the outer beam panel 21111, the lower outer beam inner panel 21113 can be biased downward relative to the fin bottom plate 22, which makes it easier to set the water collecting box 2122 on the lower side of the water collecting groove 3.

[0072] In an embodiment, the fin support seat 2 further comprises a middle support column 24 connected to the bottom side of the outer frame 211, the middle support column 24 comprises a middle support column panel 241 and middle support column side plates 242 respectively bent inward on the left and right sides of the middle support column panel 241, and the water collecting box 2122 is provided with two connecting wing plates 21229 on the side close to the middle support column 24, and the two connecting wing plates 21229 are respectively abutted and fixed to the opposite sides of the two middle support column side plates 242.

[0073] Specifically, the middle support column panel 241 is also a plate body located on the outer wall surface side of the heat pump case, and the inner side of the middle support column panel 241 is the side close to the center of the heat pump case, and by using the structure of the middle support column 24, the two connecting wing plates 21229 of the water collecting box 2122 are respectively connected and fixed to the two middle support column side plates 242, which can effectively improve the reliability of the installation of the end of the water collecting box 2122 away from the main beam body 212, that is, improve the reliability of the installation of the middle cross beam 212.

[0074] Among them, the connecting wing plate 21229 and the middle support column side plate 242 can be fixedly connected in the form of welding connection, rivet connection, etc., and preferably in the form of detachable connection by screw connection.

[0075] In the description herein, it should be understood that the terms "upper", "lower", "left", "right", etc. orientation or position relationship are only for the convenience of description and simplification of operation, 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 application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0076] In the description of the present specification, the description referring to the terms "an embodiment", "an example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0077] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0078] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanations here, those skilled in the art can think of other specific embodiments of the present application without creative labor, and these ways will fall within the scope of protection of the present application.

Claims

1. A heat pump drainage structure, characterized in that, include: The fin support base (2) includes a fin support frame (21), the fin support frame (21) includes an outer frame (211) and a middle crossbeam (212) transversely disposed in the middle of the outer frame (211); the middle crossbeam (212) includes a main beam body (2121) and two water receiving boxes (2122) respectively connected to both ends of the main beam body (2121), the middle crossbeam (212) is connected to the outer frame (211) through the water receiving boxes (2122); A finned heat exchanger (1) is mounted on the finned support (2) around the inner periphery of the outer frame (211); At least two water collection tanks (3) are provided. All the water collection tanks (3) are arranged below the fin support frame (21) along the projection path of the bottom of the finned heat exchanger (1). The water collection tanks (3) and the water receiving box (2122) together receive the condensate of the finned heat exchanger (1).

2. The heat pump drainage structure according to claim 1, characterized in that, The water receiving box (2122) is connected to the water collection tank (3), and the water in the water collection tank (3) can be collected into the water receiving box (2122) and discharged uniformly.

3. The heat pump drainage structure according to claim 2, characterized in that, The water receiving box (2122) is recessed downward relative to the main beam (2121). The water receiving box (2122) and the two adjacent water collection tanks (3) are respectively provided with clearance notches (21226) corresponding to the water collection tanks (3). The end of the water collection tank (3) that connects to the water receiving box (2122) is set as a drain outlet (31). The water collection tank (3) extends to the top of the water receiving box (2122) through the clearance notches (21226), so that the drain outlet (31) is placed above the water receiving box (2122), thereby realizing that the water collection tank (3) drains water to the water receiving box (2122).

4. The heat pump drainage structure according to claim 3, characterized in that, The water collection tank (3) has a downwardly bent guide plate (32) at the end of the drain outlet (31).

5. The heat pump drainage structure according to claim 1, characterized in that, The water receiving box (2122) is provided with a first overlapping plate (21227) extending toward the center of the main beam (2121) on the top side of the side wall panel of the main beam (2121). The first overlapping plate (21227) overlaps and is fixed to the lower surface of the main beam (2121).

6. The heat pump drainage structure according to claim 5, characterized in that, The main beam (2121) includes a beam top plate (21211) and two beam side plates (21212) that bend downward from two opposite sides of the beam top plate (21211). The first lap plate (21227) includes an lap top plate (212271) and two lap side plates (212272) that bend downward from both sides of the lap top plate (212271). The lap top plate (212271) abuts against the lower surface of the beam top plate (21211), and the two lap side plates (212272) abut against the opposite sides of the two lap side plates (212272).

7. The heat pump drainage structure according to claim 6, characterized in that, The main beam (2121) also includes a buckle plate (21213) that bends downward at the end of the top plate (21211) of the beam, and the buckle plate (21213) overlaps the inner wall of the side wall panel of the water receiving box (2122) that is connected to the main beam (2121).

8. The heat pump drainage structure according to claim 1, characterized in that, The water receiving box (2122) is provided with a second overlapping plate (21228) extending away from the main beam (2121) on the top side of the side wall panel of the outer frame (211). The second overlapping plate (21228) overlaps and is fixed to the outer frame (211).

9. The heat pump drainage structure according to claim 8, characterized in that, The outer frame (211) includes a plurality of outer beams (2111), each outer beam (2111) including an outer beam panel (21111) and an upper outer beam inner plate (21112) and a lower outer beam inner plate (21113) that are bent inward on the upper and lower sides of the outer beam panel (21111). A finned base plate (22) is installed on the top surface of the upper outer beam inner plate (21112), and the second overlapping plate (21228) overlaps and is fixed to the lower outer beam inner plate (21113).

10. The heat pump drainage structure according to claim 1, characterized in that, The fin support base (2) also includes a central support column (24) connected to the bottom side of the outer frame (211). The central support column (24) includes a central support panel (241) and central support side plates (242) that bend inward on the left and right sides of the central support panel (241). The water receiving box (2122) is provided with two connecting wing plates (21229) on the side near the central support column (24). The two connecting wing plates (21229) abut against and are fixed to the opposite sides of the two central support side plates (242).

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