Outdoor unit and heating and ventilation equipment

Abstract

The utility model relates to the technical field of air conditioner heat pumps, in particular to an outdoor unit and heating and ventilation equipment. The outdoor unit comprises a shell assembly, an air inlet assembly and an air outlet assembly, wherein a containing cavity is defined by the shell assembly; the heat exchanger is arranged in the containing cavity; the water pan assembly is connected with the shell assembly, a water receiving part and a water accumulating part which are communicated are defined by the water pan assembly, the water receiving part is located in the containing cavity and arranged below the heat exchanger, the water receiving part is used for guiding condensate water falling from the heat exchanger to flow into the water accumulating part, and the water accumulating part is located outside the containing cavity and provided with a drainage hole. According to the outdoor unit, the water accumulation part is arranged outside the containing cavity, maintenance personnel can observe the water accumulation part visually and find the icing condition of the water accumulation part in time, ice residues, ice layers and the like in the water accumulation part can be removed without disassembling the shell of the outdoor unit, maintenance is easy, the ice layers can be prevented from blocking the drainage holes, and the service life of the outdoor unit is prolonged. It is ensured that the outdoor unit effectively discharges condensate water.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning heat pumps, in particular to an outdoor unit and HVAC equipment. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] When the heat exchanger of the HVAC equipment is defrosting, condensed water will be generated around the heat exchanger. The condensed water flows along the outdoor unit condenser (the outdoor unit heat exchanger is a condenser during defrosting, and actually acts as an evaporator during heating) to the water receiving pan, which collects the condensed water to the drain hole and discharges the condensed water. Due to the low temperature of the outdoor unit chassis in the cold winter in the north, the accumulated water will condense into ice on the water receiving pan. Since the water receiving pan of the existing equipment is located inside the chassis, it is not convenient for maintenance personnel to observe, so it is impossible to clean the ice layer on the water receiving pan in time, which may cause the drainage hole to be blocked, and then the condensed water overflows the water receiving pan and scatters into the inside of the chassis, or the ice layer on the water receiving pan accumulates too thickly, affecting the normal operation of the air conditioner. Utility Model Content

[0004] The purpose of the utility model is to at least solve the problem that the water collecting tray is arranged inside the chassis, which is not conducive to the inspection and removal of ice on the water collecting tray. This purpose is achieved by the following methods:

[0005] The first aspect of the utility model proposes an outdoor unit, which includes: a shell assembly, which defines a cavity; a heat exchanger, which is arranged in the cavity; at least one water receiving pan, which is connected to the shell assembly, and the water receiving pan includes a water receiving portion and a water accumulation portion, the water receiving portion is located in the cavity and is arranged below the heat exchanger, the water receiving portion is used to guide condensed water dropped from the heat exchanger to flow into the water accumulation portion, and the water accumulation portion is located outside the cavity and is provided with a drainage hole.

[0006] According to the outdoor unit of the utility model, the water receiving part is used to receive the condensed water dripping from the heat exchanger. The condensed water flows from the water receiving part to the water accumulation part under the action of gravity, and is discharged from the drainage hole in the water accumulation part. The water accumulation part is arranged outside the cavity, which is conducive to the maintenance personnel to observe the water accumulation part intuitively and find the freezing of the water accumulation part in time. The ice debris, ice layer, etc. in the water accumulation part can be removed without disassembling the shell of the outdoor unit. The maintenance is simple, and the ice layer can be prevented from blocking the drainage hole, ensuring that the outdoor unit effectively removes the condensed water.

[0007] In addition, the outdoor unit according to the utility model may also have the following additional technical features:

[0008] In some embodiments of the present invention, the outdoor unit further includes a heating element, and at least one of the water receiving portion and the water accumulation portion is provided with the heating element.

[0009] In some embodiments of the present invention, the water receiving portion includes a water receiving plate, at least one side of the water receiving plate is configured as a folded edge folded toward the heat exchanger, and the water accumulation portion includes a water accumulation trough, the top edge of the water accumulation trough is connected to the water receiving plate.

[0010] In some embodiments of the present invention, the surface of the water receiving plate facing the heat exchanger is an inclined surface, and the liquid outflow side of the inclined surface is connected to the top edge of the water storage tank.

[0011] In some embodiments of the present invention, the water receiving plate and the water accumulation plate are an integrated structure or a split structure.

[0012] In some embodiments of the utility model, the shell assembly includes a mounting frame, a shell and a partition, the shell and the partition are both mounted on the mounting frame, the partition divides the cavity into an upper chamber and a lower chamber, the heat exchanger and the water receiving plate are arranged in the upper chamber, and the water receiving tray is connected to the mounting frame and / or the partition.

[0013] In some embodiments of the present invention, the heat exchanger is arranged in a ring shape above the partition, and the water receiving tray assembly includes a plurality of the water receiving trays, which are arranged in sequence along the circumferential edge of the partition.

[0014] In some embodiments of the present invention, the outdoor unit further includes a drain pipe, which is located outside the cavity and communicates with the drain hole.

[0015] In some embodiments of the present utility model, the outdoor unit further comprises a shielding cover, which is connected to the housing assembly and is disposed above the water accumulation portion.

[0016] According to a second aspect of the present invention, a HVAC device is also proposed, and the HVAC device includes an outdoor unit described in any one of the technical solutions of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. Among them:

[0018] Figure 1 This is a schematic diagram of the structure of an outdoor unit according to an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of an outdoor unit according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic structural diagram of a water receiving tray assembly and a partition plate according to an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the assembly structure of a water receiving tray assembly, a partition plate and a heat exchanger according to an embodiment of the utility model;

[0022] Figure 5 It is a schematic cross-sectional structure diagram of a water receiving tray assembly, a partition plate and a heat exchanger according to an embodiment of the utility model;

[0023] Figure 6 for Figure 5 A partial enlarged schematic diagram of part A;

[0024] Figure 7 The utility model is a schematic structural diagram of a water receiving tray according to an embodiment of the present invention.

[0025] The reference numerals in the accompanying drawings represent the following:

[0026] 100. Outdoor unit;

[0027] 10. Shell assembly; 11. Mounting frame; 111. Vertical frame; 112. Middle frame; 12. Shell; 13. Partition; 101. Receptacle; 1011. Upper chamber; 1012. Lower chamber;

[0028] 20. Heat exchanger;

[0029] 31. water receiving tray; 311. water receiving plate; 3111. folded edge; 301. water receiving part; 302. water accumulation part; 3101. water accumulation tank;

[0030] 40. Drain pipe. DETAILED DESCRIPTION

[0031] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0032] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0033] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0034] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is rotated, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both above and below orientations.

[0035] Combination Figures 1 to 6As shown, according to an embodiment of the utility model, an outdoor unit 100 is provided, the outdoor unit 100 includes a shell assembly 10, a heat exchanger 20 and a water receiving tray 31, the shell assembly 10 includes a shell 12, a mounting frame 11 and a partition 13, the mounting frame 11 includes a vertical frame 111 arranged longitudinally and a middle frame 112 arranged transversely, the shell 12 is installed on the mounting frame 11, and the partition 13 is installed on the middle frame 112, wherein the partition 13 divides the cavity 101 into an upper chamber 1011 and a lower chamber 1012, and the heat exchanger 20 is arranged in the upper chamber 1011.

[0036] Please combine Figure 2 Figure 3 As shown, the water receiving pan 31 is connected to the middle frame 112 or the water receiving pan 31 is connected to the partition 13. The water receiving pan 31 defines a water receiving portion 301 and a water accumulation portion 302. The water receiving portion 301 is connected to the water accumulation portion 302. The water receiving portion 301 is located in the upper chamber 1011 in the cavity 101, and the water accumulation portion 302 is arranged below the heat exchanger 20. The heat exchanger 20 has a first projection on the horizontal plane, and the water receiving portion 301 has a second projection on the horizontal plane. The first projection is located in the second projection, so that the condensed water on the heat exchanger 20 drops into the water receiving portion 301 under the action of gravity. The water accumulation portion 302 is located lower than the water receiving portion 301. The water receiving portion can guide the condensed water dropped from the heat exchanger to flow into the water accumulation portion, that is, the condensed water in the water receiving portion 301 can flow and gather into the water accumulation portion 302. The bottom wall of the water accumulation portion 302 is provided with a drainage hole (not shown in the figure) to discharge the accumulated water.

[0037] In this embodiment, please combine Figure 1 and Figure 3 As shown, the water accumulation part 302 is located outside the cavity 101, which is convenient for maintenance personnel to observe the water accumulation part 302 intuitively and find out the freezing of the water accumulation part 302 in time. There is no need to disassemble the shell 12 of the outdoor unit 100 to remove the ice debris, ice layer, etc. in the water accumulation part 302, which is simple to maintain and can prevent the ice layer from blocking the drainage hole, thereby ensuring that the outdoor unit 100 effectively removes condensed water.

[0038] In some embodiments of the utility model, the outdoor unit 100 further includes a heating element (not shown in the figure), and the heating element includes but is not limited to electric heating cables (electric heating wires), electric heating belts, electric heating films, electric heating foils, electric heating sheets, and electric heating tubes (rods). The heating element is arranged in the water receiving part 301 or the water accumulation part 302, or the water receiving part 301 and the water accumulation part 302 are respectively provided with heating elements. In this embodiment, by arranging a heating element in the water receiving part 301 and the water accumulation part 302, the water receiving part 301 and the water accumulation part 302 are heated by the heating element, and the temperature of the water receiving part 301 and the water accumulation part 302 is increased, so as to reduce the probability of freezing of condensed water in the water receiving part 301 and the water accumulation part 302, and prevent the condensed water in the water accumulation part 302 from freezing and blocking the drain hole.

[0039] It should be noted that since the water accumulation portion 302 is arranged outside the cavity 101, the heating element provided in the water accumulation portion 302 is also located outside the cavity 101. When the heating element fails and cannot heat the water accumulation portion 302, the maintenance personnel can check, repair and replace the heating element in the water accumulation portion 302 without disassembling the shell assembly 10, and the installation and maintenance are simple and easy to operate.

[0040] In some embodiments, when the heating element is an electric heating cable or an electric heating belt, a heating element is arranged on the water receiving tray 31, and different parts of the heating element extend into the water receiving portion 301 and the water accumulation portion 302 respectively.

[0041] In other embodiments, there are multiple heating elements, one heating element is disposed in each water receiving portion 301 , and one heating element is disposed in each water accumulation portion 302 .

[0042] In some embodiments of the present invention, Figure 3 , Figure 4 and Figure 5 As shown, the water receiving portion 301 includes a water receiving plate 311, and the water accumulation portion 302 includes a water accumulation plate. The water receiving plate 311 and the water accumulation plate are both plate-shaped structures, and the water receiving plate 311 is connected to the water accumulation plate. Figure 7 As shown, one side of the water receiving plate 311 away from the water accumulation plate is bent toward one side of the heat exchanger 20 to form a folded edge 3111, and the folded edge 3111 can prevent the condensed water dripping on the water receiving plate 311 from flowing toward the side away from the water accumulation part. The peripheral edges of the water accumulation plate are all folded upward so that the water accumulation part 302 defines a water accumulation groove 3101, and the top of the water accumulation groove 3101 is open, and the edge of the open is connected to the water receiving plate 311, so that the condensed water on the water receiving plate 311 can flow through the open and collect in the water accumulation groove 3101. In some embodiments, the water receiving plate 311 and the water accumulation plate are formed as a plate-like member through metal stamping and bending processes, and the water receiving part 301 and the water accumulation part 302 are formed on the water receiving plate 311 and the water accumulation plate, respectively. In other embodiments, the water receiving plate 311 and the water accumulation plate are formed separately and connected as a whole through welding or bonding processes.

[0043] In some embodiments of the present invention, the surface of the water receiving plate 311 facing the heat exchanger 20 is an inclined surface, and the liquid outflow side of the inclined surface is connected to the top edge of the water trough 3101, so that the condensed water on the water receiving plate 311 can flow smoothly into the water trough 3101. The liquid outflow side refers to the side with a lower height among the multiple side edges of the inclined surface. In this embodiment, the height of the edge of the inclined surface close to the water trough 3101 is lower than the edge of the inclined surface away from the water trough 3101.

[0044] In some embodiments of the present invention, please combine Figure 2 , Figure 4 Figure 5 and Figure 6 As shown, the heat exchanger 20 and the water receiving plate 311 are arranged in the upper chamber 1011, and the water receiving pan 31 is connected to the middle frame 112 and the partition 13 respectively. The heat exchanger 20 includes two independent U-shaped heat exchangers 20, and the two U-shaped heat exchangers 20 are arranged opposite to each other and arranged in a ring above the partition 13. The water receiving pan 31 includes a plurality of water receiving pans 31, and the plurality of water receiving pans 31 are arranged in a ring along the circumferential edge of the partition 13 in sequence. The plurality of water receiving pans 31 are arranged in a ring below the heat exchanger 20. Compared with the water receiving pan 31 of the integral structure in the existing equipment, the water receiving pan 31 in the utility model is set as a plurality of independent water receiving pans 31. By arranging the plurality of water receiving pans 31 in a ring, it is more suitable for the annular radiator, and the annular radiator is dispersedly drained from multiple directions by the plurality of water receiving pans 31, thereby improving the drainage efficiency of the water receiving pan 31 and reducing the probability of the water receiving pan 31 freezing and blocking the drainage hole under cold conditions such as winter.

[0045] It should also be emphasized that by providing multiple independent water receiving trays 31, when one or more water receiving trays 31 and the heating elements provided in the water receiving trays 31 fail, they can be repaired or replaced in a targeted manner without disassembling all the water receiving trays 31, thereby reducing the difficulty of repair and replacement.

[0046] In some embodiments of the present invention, Figure 4 As shown, the outdoor unit 100 further includes a drain pipe 40, which is located outside the cavity 101, and is disposed below the water storage tank 3101 and communicates with the drain hole. In this embodiment, the condensed water in the water storage portion 302 can be discharged through the drain pipe 40. By disposing the drain pipe 40 outside the cavity 101, the condensed water can be directly discharged to the outside of the whole unit through the drain pipe 40, and the water storage portion 302, the drain hole and the drain pipe 40 are all disposed outside the cavity 101, so that the probability of the condensed water overflowing into the interior of the outdoor unit 100 can be further reduced.

[0047] In some embodiments of the utility model, the outdoor unit 100 also includes a shielding cover (not shown in the figure), which is connected to the shell 12, or the shielding cover is connected to the mounting frame 11, and the shielding cover is arranged above the water accumulation part 302 to prevent fallen leaves, dust and other debris from falling into the water accumulation tank 3101, thereby reducing the probability of external debris blocking the drain hole and the drain pipe 40, and ensuring that the drain hole and the drain pipe 40 always remain unobstructed.

[0048] According to the embodiment of the utility model, a HVAC device is also proposed, the HVAC device includes an outdoor unit 100, and the HVAC device also includes a fan, a compressor, a shell tube and a piping system, an electric control box, etc., wherein the compressor, the shell tube and the piping system, and the electric control box are installed in the lower chamber 1012, the upper chamber 1011 has an exhaust port, and the fan is installed at the exhaust port. According to the HVAC device proposed by the utility model, the water accumulation part 302 is arranged outside the cavity 101, which is conducive to maintenance personnel to visually observe the water accumulation part 302 and timely discover the freezing of the water accumulation part 302. The ice debris, ice layer, etc. in the water accumulation part 302 can be cleared without disassembling the shell 12 of the outdoor unit 100, which is simple to maintain and can prevent the ice layer from blocking the drain hole, ensuring that the outdoor unit 100 effectively removes condensed water.

[0049] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An outdoor unit, characterized in that: The outdoor unit comprises: A housing assembly, wherein the housing assembly defines a cavity; A heat exchanger is disposed in the cavity; At least one water receiving pan is connected to the shell assembly, the water receiving pan includes a water receiving portion and a water accumulation portion, the water receiving portion is located in the cavity and is provided below the heat exchanger, the water receiving portion is used to guide the condensed water dropped from the heat exchanger to flow into the water accumulation portion, the water accumulation portion is located outside the cavity and is provided with a drainage hole.

2. The outdoor unit according to claim 1, characterized in that: The outdoor unit further includes a heating element, and at least one of the water receiving portion and the water accumulation portion is provided with the heating element.

3. The outdoor unit according to claim 1, characterized in that: The water receiving portion comprises a water receiving plate, at least one side of which is configured as a folded edge folded toward the heat exchanger, and the water accumulation portion comprises a water accumulation groove, the top edge of which is connected to the water receiving plate.

4. The outdoor unit according to claim 3, characterized in that: The surface of the water receiving plate facing the heat exchanger is an inclined surface, and the liquid outflow side of the inclined surface is connected to the top edge of the water storage tank.

5. The outdoor unit according to claim 3, characterized in that: The water receiving plate and the water accumulation part are of an integrated structure or a split structure.

6. The outdoor unit according to claim 3, characterized in that: The shell assembly includes a mounting frame, a shell and a partition, the shell and the partition are both mounted on the mounting frame, the partition divides the cavity into an upper chamber and a lower chamber, the heat exchanger and the water receiving plate are arranged in the upper chamber, and the water receiving tray is connected to the mounting frame and / or the partition.

7. The outdoor unit according to claim 6, characterized in that: The heat exchanger is arranged in a ring shape above the partition, and the water receiving pan assembly includes a plurality of water receiving pans, which are arranged in sequence along the circumferential edge of the partition.

8. The outdoor unit according to claim 1, characterized in that: The outdoor unit further includes a drain pipe, which is located outside the cavity and communicated with the drain hole.

9. The outdoor unit according to claim 1, characterized in that: The outdoor unit further comprises a shielding cover, which is connected to the housing assembly and is disposed above the water accumulation portion.

10. A HVAC equipment, characterized in that: The HVAC equipment includes the outdoor unit according to any one of claims 1 to 9.

Images