Upper structure of integrated air source water heater

Abstract

The utility model relates to the technical field of heat pump water heaters, and discloses an integrated air source water heater upper structure which comprises an evaporator, a compressor and an electric appliance box, the evaporator is semicircular, side plates are arranged at two ends of a semicircular opening of the evaporator, the side plates extend forwards to be connected with a fan, the evaporator, the side plates and the fan are encircled, and the compressor is connected with the electric appliance box. A cavity is formed inside the water receiving disc, the compressor is arranged in the cavity, the occupation of the transverse space of the water receiving disc is effectively reduced due to the arc-shaped layout of the semicircular evaporator, and the inherent defects of the traditional direct discharge type design in the aspects of space occupation, heat exchange efficiency, system layout and the like are overcome.

Description

Technical Field

[0001] This utility model relates to the field of heat pump water heater technology, specifically to an upper structure of an integrated air source water heater. Background Technology

[0002] With the widespread application of heat pump technology, integrated air source heat pump water heaters have gained market favor due to their high efficiency and energy saving. Furthermore, as people's needs for installation space increase, consumers are increasingly favoring a compact and high-performance heat pump water heater. An integrated air source heat pump water heater mainly consists of: core components of the heat pump system, water system components, and control and auxiliary components. The core components of the heat pump system include the evaporator, compressor, condenser, and throttling device. Existing evaporators typically use a direct-vent design, which occupies a significant amount of lateral space in the drip tray, and the air-side heat exchange area is also limited due to insufficient space, thus affecting the heat pump's operating efficiency. Therefore, for heat pump water heaters with multiple main control boards, a systematic optimization of their internal structure and installation layout is necessary to reduce the impact on airflow. Utility Model Content

[0003] The purpose of this utility model is to provide an integrated air source water heater upper structure to solve the problem mentioned in the background art that the existing evaporators usually adopt a direct-vent design, occupying a large amount of horizontal space in the water receiving tray, and the air-side heat exchange area is also limited due to insufficient space, thus affecting the working efficiency of the heat pump.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An integrated air source water heater upper structure includes an evaporator, a compressor, and an electrical box. The evaporator is semi-circular, with side plates at both ends of its semi-circular opening. The side plates extend forward and are connected to a fan. The evaporator, side plates, and fan enclose an internal cavity, in which the compressor is located. The compressor has two pipes, one of which is connected to the evaporator. The outer side of the semi-circular evaporator is the air inlet side, and the side of the fan is the air outlet side.

[0006] Furthermore, a through hole is provided at the bottom of one side plate, through which the pipe extends out of the cavity.

[0007] Furthermore, the compressor's piping includes an intake pipe and an exhaust pipe, with one end of the intake pipe connected to the compressor's intake port and the other end connected to the evaporator's outlet.

[0008] Furthermore, one end of the exhaust pipe is connected to the compressor exhaust port, and the other end is connected to the condenser inlet.

[0009] Furthermore, the electrical box is installed on the outer side of the other side plate, which does not have a through hole.

[0010] Furthermore, the electrical box is equipped with a main control board, which is used to receive signals and control the operation of each component.

[0011] Furthermore, the fan includes a fan and a motor. The fan accelerates ambient air through the evaporator and can also exhaust the cooled air after heat exchange. The motor provides power to the fan.

[0012] Furthermore, it also includes a base and a top cover, the base being located at the bottom of the cavity and the top cover being located at the top of the cavity.

[0013] Furthermore, it also includes a wired controller, which is used to receive user commands and transmit them to the main control board.

[0014] Furthermore, the upper structure of the integrated air source water heater is used for the heat pump system of the integrated air source water heater.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] First, the semi-circular evaporator's arc-shaped layout effectively reduces the lateral space occupied by the condensate drain pan. Traditional straight-vent evaporators, due to their inclined straight-line arrangement, have a large projected area, requiring the drain pan to be sufficiently wide to fully collect the condensate. This not only increases the overall size of the unit but also limits the layout space of other components. In contrast, the semi-circular design of this invention optimizes the evaporator's geometry, allowing condensate to naturally converge along the arc-shaped surface to the bottom center area, thus significantly reducing the required lateral dimensions of the drain pan and enabling a more compact overall structure. The semi-circular structure provides a larger effective heat exchange area within the same footprint, significantly increasing the contact area between air and refrigerant, thereby improving heat exchange efficiency.

[0017] Furthermore, the structure integrates the compressor within a cavity formed by the evaporator, side plate, and fan. This integrated layout not only saves external space but also optimizes the piping connection method. The suction and exhaust pipes are led out through the side plate through-holes, making the refrigerant flow path simpler and more efficient, and reducing the pressure drop loss caused by the detour of the pipes in traditional designs.

[0018] In addition, the air flow direction is such that the outer side of the semi-circular evaporator is the air inlet side and the fan side is the air outlet side, which naturally forms a counter-current heat exchange mode that is opposite to the refrigerant flow direction. Compared with the common co-current arrangement of direct-vent evaporators, this design ensures that the optimal temperature difference gradient is always maintained during the heat exchange process, so that the heat exchange capacity of each section of the evaporator can be fully utilized.

[0019] In summary, this design overcomes the inherent shortcomings of traditional direct-vent designs in terms of space occupation, heat exchange efficiency, and system layout, enabling air source water heaters to maintain high performance while adapting to more complex installation environments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the upper structure of the integrated air source water heater of this utility model on the left side;

[0021] Figure 2 This is a top view of the upper structure of the integrated air source water heater of this utility model;

[0022] Figure 3 This is a three-dimensional schematic diagram of the upper structure of the integrated air source water heater of this utility model on the right side;

[0023] Figure 4 This is a schematic diagram of the overall structure of the upper part of the integrated air source water heater of this utility model;

[0024] Figure 5 This is a schematic diagram of the upper structure wired controller of the integrated air source water heater of this utility model;

[0025] In the diagram: 1-Evaporator, 2-Electrical box, 3-Compressor, 4-Pipe, 41-Exhaust pipe, 42-Suction pipe, 5-Fan, 51-Fan, 52-Motor, 6-Base, 7-Top cover, 8-Wired controller, 9-Side panel. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1As shown, the upper structure of an integrated air source water heater includes an evaporator 1, a compressor 3, and an electrical box 2. The evaporator 1 is semi-circular, with side plates 9 at both ends of its semi-circular opening. The semi-circular design reduces the lateral space occupied by the evaporator 1 in relation to the water tray, optimizing space design. The side plates 9 extend forward and are connected to a fan 5. The evaporator 1, side plates 9, and fan 5 enclose an internal cavity, within which the compressor 3 is located. The compressor 3 has two pipes 4, one of which is connected to the evaporator 1. The outer side of the semi-circular evaporator 1 is the air inlet side, and the side of the fan 5 is the air outlet side. This allows the air outlet direction to flow counter-currently to the refrigerant flow direction within the evaporator 1. In other words, the air flow direction is opposite to the refrigerant flow direction within the evaporator 1. During counter-current flow, the coldest air contacts the coldest refrigerant at the outlet of the evaporator 1, and the hottest air contacts the hottest refrigerant at the inlet of the evaporator 1, resulting in a more uniform temperature difference and higher heat exchange efficiency throughout the heat exchange process.

[0028] like Figure 2 As shown, a through hole is opened at the bottom of the side plate 9 on one side, and the pipe 4 extends out of the cavity through the through hole.

[0029] like Figure 3 and Figure 4 As shown, the pipe 4 of the compressor 3 includes a suction pipe 42 and a discharge pipe 41. One end of the suction pipe 42 is connected to the suction port of the compressor 3, and the other end is connected to the outlet of the evaporator 1. The function of the suction pipe 42 is to draw the low-temperature, low-pressure gaseous refrigerant generated by the evaporator 1 into the compressor 3.

[0030] like Figure 3 and Figure 4 As shown, the suction pipe 42 is a low-pressure pipe with an external insulation layer to prevent condensation; the suction pipe 42 is equipped with a suction connector (not shown in the figure), and the suction pipe 42 is connected to the outlet of the evaporator 1 through the suction connector.

[0031] like Figure 3 and Figure 4 As shown, one end of the exhaust pipe 41 is connected to the exhaust port of the compressor 3, and the other end is connected to the inlet of the condenser (not shown in the figure). The function of the suction pipe 42 is to transport the high-temperature and high-pressure gaseous refrigerant output by the compressor 3 to the condenser.

[0032] like Figure 3 and Figure 4 As shown, the exhaust pipe 41 is a high-pressure pipe with a high operating temperature and is made of pressure- and heat-resistant materials.

[0033] In actual implementation, the condenser is also equipped with a condensing pipe (not shown in the figure), which is connected to the evaporator 1.

[0034] like Figure 4 As shown, the electrical box 2 is installed on the outer side of the other side plate 9, which does not have a through hole.

[0035] In actual implementation, the electrical box 2 is equipped with a main control board, which is used to receive signals and control the operation of each component.

[0036] like Figure 2 As shown, the fan 5 includes a fan 51 and a motor 52. The fan 51 forces airflow, accelerates the passage of ambient air through the evaporator 1, improves heat absorption efficiency, and can also discharge the low-temperature air after heat exchange to prevent low-temperature air from flowing back. The motor 52 is used to provide power to the fan 51.

[0037] like Figure 4 As shown, the upper structure of the integrated air source water heater also includes a base 6 and a top cover 7. The base 6 is located at the bottom of the cavity, and the top cover 7 is located at the top of the cavity.

[0038] like Figure 5 As shown, the upper structure of the integrated air source water heater also includes a wired controller 8, which is used to receive user commands and transmit them to the main control board.

[0039] In actual implementation, the wired controller 8 is electrically connected to the main control board via wired or wireless means.

[0040] The working process of the upper structure of this integrated air source water heater is as follows:

[0041] S1. Ambient air flows through the evaporator 1 via the air inlet side, and the heat in it is absorbed by the low-temperature, low-pressure liquid refrigerant inside the evaporator 1, causing the refrigerant to evaporate into a gaseous state.

[0042] S2. Gaseous refrigerant enters the suction port of compressor 3 from the outlet of evaporator 1 through suction pipe 42, and is compressed into high temperature and high pressure gas in compressor 3.

[0043] S3. High-temperature and high-pressure gas enters the condenser from the exhaust port of compressor 3 through the exhaust pipe 41, releases heat in the condenser, heats the water in the water tank, and liquefies itself into a high-pressure liquid state.

[0044] S4. The high-pressure liquid refrigerant enters the expansion valve through the condenser pipe, where it is throttled and depressurized, returning to a low-temperature, low-pressure state and flowing back to the evaporator 1. Simultaneously, the cooled ambient air is discharged from the outlet side by the fan 5, completing the entire cycle. In this step, because the low-temperature, low-pressure refrigerant absorbs heat in the evaporator 1, the temperature of the outer wall of the evaporator 1 is lower than the ambient air temperature. At this time, condensate will be generated on the outer wall of the evaporator 1, and the condensate will drip into the drip tray and be discharged.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An upper structure for an integrated air source water heater, characterized in that: The device includes an evaporator, a compressor, and an electrical box. The evaporator is semi-circular, with side plates at both ends of its semi-circular opening. The side plates extend forward and are connected to a fan. The evaporator, side plates, and fan together form an internal cavity. The compressor is located inside the cavity. The compressor has two pipes, one of which is connected to the evaporator. The outer side of the semi-circular evaporator is the air inlet side, and the side of the fan is the air outlet side.

2. The upper structure of the integrated air source water heater according to claim 1, characterized in that: One side plate has a through hole at the bottom, and the pipe extends out of the cavity through the through hole.

3. The upper structure of the integrated air source water heater according to claim 2, characterized in that: The compressor's piping includes an intake pipe and an exhaust pipe. One end of the intake pipe is connected to the compressor's intake port, and the other end is connected to the evaporator's outlet.

4. The upper structure of the integrated air source water heater according to claim 3, characterized in that: One end of the exhaust pipe is connected to the compressor exhaust port, and the other end is connected to the condenser inlet.

5. The upper structure of the integrated air source water heater according to claim 1, characterized in that: The electrical box is installed on the outer side of the other side plate, which does not have a through hole.

6. The upper structure of the integrated air source water heater according to claim 1, characterized in that: The electrical box contains a main control board, which is used to receive signals and control the operation of various components.

7. The upper structure of the integrated air source water heater according to claim 1, characterized in that: The fan includes a fan and a motor. The fan accelerates ambient air through the evaporator and also exhausts the cooled air after heat exchange. The motor provides power to the fan.

8. The upper structure of the integrated air source water heater according to claim 1, characterized in that: It also includes a base and a top cover, the base being located at the bottom of the cavity and the top cover being located at the top of the cavity.

9. The upper structure of the integrated air source water heater according to claim 6, characterized in that: It also includes a wired controller, which is used to receive user commands and transmit them to the main control board.

10. The upper structure of the integrated air source water heater according to any one of claims 1-9, characterized in that: The upper structure of the integrated air source water heater is used for the heat pump system of the integrated air source water heater.

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