Heat pump water heater

Abstract

The utility model discloses a heat pump water heater which comprises a base frame provided with an upper-layer frame body and a lower-layer frame body, the upper-layer frame body is provided with an inner space, a first installation space and a second installation space, and the first installation space crosses the rear side of the inner space from the left side of the inner space and then extends to the right side of the inner space; the second mounting space is arranged on the front side of the internal space; the fan is arranged in the second mounting space; the water tank is arranged on the lower-layer frame body; the heat pump system comprises a compressor with a refrigerant outlet and a refrigerant inlet, a condenser, a throttling device and an evaporator are sequentially connected between the refrigerant outlet and the refrigerant inlet, the compressor is arranged on the lower layer frame body, the condenser is arranged in the water tank, and the evaporator is arranged in the first installation space. The air outlet direction of the heat pump water heater is forward, the requirement for the vertical size of the installation space is lowered, the heat pump water heater even can be stacked in the vertical direction so that the occupied area can be saved, and the use requirement can be met.

Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, and in particular to a heat pump water heater. Background Technology

[0002] Heat pump water heaters are widely used in places that require the production of large amounts of hot water, such as indoor heated swimming pools, due to their high energy efficiency ratio. Some indoor heated swimming pools are located on floors with low ceilings, or require multiple heat pump water heaters to be stacked vertically to save floor space. However, conventional heat pump water heaters have large vertical space requirements for installation, which cannot meet the needs of these usage scenarios. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a heat pump water heater.

[0004] The heat pump water heater according to an embodiment of the present invention includes:

[0005] The base frame has an upper frame and a lower frame. The upper frame has an internal space, a first installation space and a second installation space. The first installation space extends from the left side of the internal space across the rear side of the internal space to the right side of the internal space. The second installation space is located on the front side of the internal space.

[0006] The fan is located in the second installation space;

[0007] A water tank is located on the lower frame.

[0008] A heat pump system includes a compressor having a refrigerant outlet and a refrigerant inlet. A condenser, a throttling device, and an evaporator are sequentially connected between the refrigerant outlet and the refrigerant inlet. The compressor is located on the lower frame, the condenser is located inside the water tank, and the evaporator is located in the first installation space.

[0009] The heat pump water heater according to the embodiments of this utility model has at least the following technical effects: by setting the evaporator on the left, rear and right sides of the internal space and setting the fan on the front side of the internal space, the air outlet direction of the heat pump water heater is forward, reducing the vertical dimension requirements of the installation space. The heat pump water heater can even be stacked vertically to save floor space and meet the usage requirements.

[0010] According to some embodiments of the present invention, the bottom of the evaporator is provided with a water receiving structure.

[0011] According to some embodiments of the present invention, the water receiving structure includes a first water receiving tray extending laterally and a second water receiving tray extending front to back. The first water receiving tray is located on the rear side of the internal space, and the second water receiving tray is located on the left or right side of the internal space.

[0012] According to some embodiments of the present invention, the first water receiving tray is provided with a first protrusion protruding into the internal space, and the second water receiving tray is provided with a second protrusion protruding into the internal space.

[0013] According to some embodiments of the present invention, the first protrusion is provided with a water collection trough.

[0014] According to some embodiments of the present invention, the first water receiving tray is connected to the second water receiving tray.

[0015] According to some embodiments of the present invention, the second protrusion includes a baffle plate, which extends upward at an angle away from the second water receiving tray.

[0016] According to some embodiments of the present invention, the rear end of the baffle plate is located above the first protrusion.

[0017] According to some embodiments of the present invention, there are two heat pump systems, and the evaporators of the two heat pump systems are both L-shaped, and the evaporators of the two heat pump systems are respectively located on the left and right sides of the first installation space.

[0018] According to some embodiments of the present invention, the internal space is provided with a pipe running area, which is located between the evaporators of the two heat pump systems.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a three-dimensional structural diagram of the heat pump water heater according to an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the heat pump water heater according to an embodiment of the present utility model;

[0023] Figure 3 yes Figure 2 A three-dimensional structural diagram of the water-receiving structure.

[0024] In the attached image:

[0025] 101-Lower frame; 102-Upper frame; 110-Axial flow fan; 120-Filter screen; 200-Control box; 310-Compressor; 320-Water tank; 321-First connecting pipe; 330-Expansion valve; 340-Evaporator; 341-Distributor head; 400-Water receiving structure; 410-First water receiving tray; 411-Water collection trough; 420-Second water receiving tray; 421-Water baffle. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number, while "above," "below," "within," etc., are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] The following is for reference. Figures 1 to 3 This invention describes a heat pump water heater according to an embodiment of the present invention.

[0030] The heat pump water heater of this utility model embodiment includes a base frame, a fan, a water tank 320, and a heat pump system.

[0031] like Figure 1As shown, the base frame is a cuboid frame structure. The base frame has an upper frame 102 and a lower frame 101. The upper frame 102 is located on the upper side of the lower frame 101. The upper frame 102 has an internal space, a first installation space and a second installation space. The first installation space extends from the left side of the internal space across the rear side of the internal space to the right side of the internal space. The first installation space is U-shaped, that is, the left side, rear side and rear side of the upper frame 102 are the first installation space. The second installation space is located on the front side of the internal space, that is, the front side of the upper frame 102 is the second installation space. The outer surface of the base frame is provided with an outer shell. The outer shell has an exhaust port for installing the fan at the front side of the upper frame 102. The outer shell has air inlets on the left side, rear side and right side of the upper frame 102 to facilitate the inflow of air. The air inlets can be equipped with filters 120 to filter dust or other debris.

[0032] The fan is located in the second installation space. The fan can be an axial flow fan 110, and the air delivery direction of the fan is forward. There can be multiple fans. The fan can draw air out of the front of the upper frame 102 in the internal space, creating a negative pressure environment in the internal space, thereby allowing outside air to pass through the first installation space under atmospheric pressure. Of course, in some other embodiments of this utility model, the fan can also be a centrifugal fan or other types of fans, as long as they can draw air out of the internal space.

[0033] like Figure 2 As shown, the water tank 320 is located on the lower frame 101. The water tank 320 can be arranged in a horizontal barrel shape. A first connecting pipe 321 extends from the top left side of the water tank 320, and a second connecting pipe extends from the top right side of the water tank 320. One of the first connecting pipe 321 and the second connecting pipe is used for the inflow of cold water, and the other is used for the outflow of hot water. Both the first connecting pipe 321 and the second connecting pipe extend upward from the top of the water tank 320, bend forward and extend through the outer shell to facilitate connection to external pipelines.

[0034] The heat pump system includes a compressor 310 with a refrigerant outlet and a refrigerant inlet. A condenser, a throttling device, and an evaporator 340 are sequentially connected between the refrigerant outlet and the refrigerant inlet. The compressor 310 is located on the lower frame 101, the condenser is located inside the water tank 320, and the evaporator 340 is located in the first installation space. The refrigerant outlet, condenser, throttling device, evaporator 340, and refrigerant inlet are connected by copper pipes. The throttling device can be an expansion valve 330 or a capillary throttling device. A distributor 341 can also be connected between the expansion valve 330 and the evaporator 340 to improve the heat absorption efficiency of the evaporator 340. The heat pump system may also include commonly used components in heat pump systems such as an oil-gas separator, a liquid level indicator, a gas-liquid separator, and a liquid receiver. The heat pump system is a well-known technology in the field, and its specific structure will not be described in detail here. The first installation space for installing the evaporator 340 has a large surface area, which is beneficial for the evaporator 340 to absorb heat from the air. Larger components such as oil-gas separators, gas-liquid separators, and liquid receivers can be installed together with the compressor 310 in the lower frame 101. This ensures that these larger components do not obstruct the airflow in the upper frame 102, which not only improves the efficiency of hot water production but also prevents humid gas from eroding and corroding the compressor 310 and other components, thus extending their service life.

[0035] Understandably, in related technologies, the evaporator 340 is arranged in a "V" shape, and the fan is placed on top of the heat pump water heater, resulting in an upward airflow direction and thus requiring a large vertical dimension for installation space. This embodiment, by placing the evaporator 340 on the left, rear, and right sides of the interior space and placing the fan on the front side, directs the airflow of the heat pump water heater forward, reducing the vertical dimension requirement for installation space. The heat pump water heater can even be stacked vertically to save floor space and meet usage needs. Furthermore, when applied to indoor heated swimming pools, the heat pump water heater can also achieve dehumidification, making the pool environment more comfortable.

[0036] In some embodiments of this utility model, the bottom of the evaporator 340 is provided with a water-collecting structure 400. It is understood that condensate will be generated during the operation of the evaporator 340. This embodiment prevents the condensate from flowing everywhere and causing the safety risk of short circuit by setting the water-collecting structure 400.

[0037] In some embodiments of this utility model, the water receiving structure 400 includes a first water receiving tray 410 extending laterally and a second water receiving tray 420 extending front-to-back. The first water receiving tray 410 is located on the rear side of the internal space, and the second water receiving tray 420 is located on the left or right side of the internal space. This ensures that neither the first water receiving tray 410 nor the second water receiving tray 420 obstructs the bottom of the internal space, and the area between the internal space and the lower frame 101 remains relatively open, facilitating the piping of the heat pump system. When there are two heat pump systems, there are correspondingly two vertical water receiving structures 400, each located at the bottom of one of the two evaporators 340, and the two water receiving structures 400 are mirror-symmetrical.

[0038] In some embodiments of this utility model, the first water receiving tray 410 has a first protrusion extending into the interior space, and the second water receiving tray 420 has a second protrusion extending into the interior space. It is understood that under the action of the fan, external air will flow through the evaporator 340 into the interior space, which will occasionally cause condensate droplets to be blown down by the airflow and drip diagonally downwards; the first and second protrusions provided in this embodiment can catch these blown-down water droplets, reducing the risk of short circuits.

[0039] In some embodiments of this utility model, the first protrusion is provided with a water collection tank 411. The water collection tank 411 can collect condensate from the first water receiving tray 410, and a drain pipe can be provided at the bottom of the water collection tank 411 to drain the condensate.

[0040] In some embodiments of this utility model, the first water receiving tray 410 is connected to the second water receiving tray 420. In this way, the condensate in the second water receiving tray 420 can also flow to the water collection tank 411 for unified discharge, eliminating the need to set up a water collection tank 411 in the second water receiving tray 420, thus simplifying the structure.

[0041] In some embodiments of this utility model, the second protrusion includes a baffle plate 421, which extends upward at an angle away from the second water receiving tray 420. (See reference...) Figure 3 Taking the water receiving structure 400 located on the left as an example, the water baffle 421 is inclined upward from left to right. The bottom edge of the water baffle 421 is connected to the top left side of the second water receiving tray 420. In this way, the water baffle 421 can collect the blown water droplets and draw the water droplets into the second water receiving tray 420.

[0042] In some embodiments of this utility model, the rear end of the baffle plate 421 is located above the first protrusion. It is understood that the rear end of the baffle plate 421 will also receive condensed water droplets. In order to prevent condensed water from flowing along the rear edge of the baffle plate 421 to outside the water receiving structure 400, this embodiment extends the rear end of the baffle plate 421 above the first protrusion. When water droplets flow down along the rear edge of the baffle plate 421, they can flow to the first protrusion and then flow to the water collection tank 411.

[0043] In some embodiments of this utility model, there are two heat pump systems. The evaporators 340 of both heat pump systems are L-shaped and are respectively located on the left and right sides of the first installation space. The condensers of both heat pump systems are housed in the same water tank 320, resulting in a compact structure. Even if one heat pump system fails, the other can continue producing hot water. The two evaporators 340 are arranged in a mirror-symmetrical configuration. Taking the evaporator 340 on the left as an example, it has a laterally extending transverse portion and a longitudinally extending longitudinal portion. The rear end of the longitudinal portion transitions to the left end of the transverse portion with an arc. The longitudinal portion is located above the second water receiving tray 420, and the transverse portion is located above the first water receiving tray 410.

[0044] In some embodiments of this utility model, the internal space is provided with a pipe routing area, which is located between the evaporators 340 of the two heat pump systems. The liquid distributor 341 of the heat pump system can be set in the pipe routing area, which facilitates the pipe routing of the heat pump system.

[0045] In some embodiments of this utility model, a control box 200 is provided at the left end of the lower frame 101, and the compressors 310 of both heat pump systems are located at the right end of the lower frame 101. Condensate dripping from above onto the left and right ends of the lower frame 101 can be intercepted by the baffles 421 of the two water-receiving structures 400. Since the left and right ends of the lower frame 101 are relatively dry areas, placing the control box 200 and compressors 310 in these drier areas is a reasonable structural arrangement that reduces the risk of short circuits.

[0046] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A heat pump water heater, characterized in that, include: The base frame has an upper frame (102) and a lower frame (101). The upper frame (102) has an internal space, a first installation space and a second installation space. The first installation space extends from the left side of the internal space across the rear side of the internal space to the right side of the internal space. The second installation space is located on the front side of the internal space. The fan is located in the second installation space; A water tank (320) is located on the lower frame (101); The heat pump system includes a compressor (310) having a refrigerant outlet and a refrigerant inlet, wherein a condenser, a throttling device and an evaporator (340) are sequentially connected between the refrigerant outlet and the refrigerant inlet, the compressor (310) is located on the lower frame (101), the condenser is located in the water tank (320), and the evaporator (340) is located in the first installation space.

2. The heat pump water heater according to claim 1, characterized in that: The bottom of the evaporator (340) is provided with a water receiving structure (400).

3. The heat pump water heater according to claim 2, characterized in that: The water receiving structure (400) includes a first water receiving tray (410) extending laterally and a second water receiving tray (420) extending front and back. The first water receiving tray (410) is located on the rear side of the interior space, and the second water receiving tray (420) is located on the left or right side of the interior space.

4. The heat pump water heater according to claim 3, characterized in that: The first water receiving tray (410) has a first protrusion protruding into the internal space, and the second water receiving tray (420) has a second protrusion protruding into the internal space.

5. The heat pump water heater according to claim 4, characterized in that: The first protrusion is provided with a water collection trough (411).

6. The heat pump water heater according to claim 5, characterized in that: The first water receiving tray (410) is connected to the second water receiving tray (420).

7. The heat pump water heater according to claim 6, characterized in that: The second protrusion includes a baffle plate (421) that extends upward at an angle away from the second water receiving tray (420).

8. The heat pump water heater according to claim 7, characterized in that: The rear end of the water baffle (421) is located above the first protrusion.

9. The heat pump water heater according to claim 1, characterized in that: The number of heat pump systems is two, and the evaporators (340) of the two heat pump systems are both L-shaped. The evaporators (340) of the two heat pump systems are respectively located on the left and right sides of the first installation space.

10. The heat pump water heater according to claim 9, characterized in that: The internal space is provided with a pipe running area, which is located between the evaporators (340) of the two heat pump systems.

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