Integrated air source heat pump unit

Abstract

The utility model discloses an integrated air source heat pump unit which comprises a shell, the shell comprises a frame, a middle partition plate is fixed in the middle of the frame, the space in the shell is divided into a left area and a right area through the middle partition plate, a middle plate is further fixed in the right area, the right area is divided into an upper side space and a lower side space through the middle plate, and the upper side space and the lower side space are communicated through the middle partition plate. A middle partition plate is arranged in the right area, a side plate is arranged on the outer side face of the right area, a folded edge is connected to the inner wall of the side plate, and an electric control box is fixed to the upper end of the folded edge and the upper end of the middle partition plate. The electric control box is arranged at the top of the shell, so that water is prevented from entering the electric control box to damage the equipment in the electric control box when the equipment leaks water, the loss of the equipment due to water leakage is reduced, and the maintenance cost of the equipment is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air source equipment, in particular to an integrated air source heat pump unit. Background Art

[0002] An air source heat pump uses heat in the air to generate heat energy. It can provide a family with hot water, cooling, and heating needs with high water volume, high water pressure, and constant temperature 24 hours a day. Existing all-in-one air source heat pumps generally integrate water tanks, electrical boxes, and other equipment, significantly reducing the overall size and footprint of the air source heat pump.

[0003] Moreover, the existing all-in-one machines all set the electrical box at the lower end of the water tank. For example, in the outdoor unit and air source heat pump system provided in patent application number CN202410572406.0, the electrical control box 30 is installed in the third space area 103, specifically the third space area 103 corresponding to the second space area 102, that is, below the outdoor heat exchanger 12. In this way, when the water tank and water pipe leak, the water will completely submerge the electrical control box 30, causing complete damage to the internal equipment and increasing the maintenance cost of the equipment. Therefore, the air source heat pump equipment is designed to prevent water from entering the electrical control box by fixing the electrical control box on the top of the shell, thereby reducing equipment damage problems caused by leakage and the like and reducing maintenance costs. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated air source heat pump unit, in which the electric control box is arranged on the middle partition and the folded edge, so that the electric control box is located on the top of the shell, thereby preventing water from entering the electric control box when the equipment leaks and causing damage to the equipment in the electric control box, reducing the loss of the equipment due to water leakage, and reducing the equipment maintenance cost.

[0005] The utility model provides the following technical solution: an integrated air source heat pump unit, comprising a housing, the housing comprising a frame, a middle partition fixed in the middle of the frame, the middle partition dividing the space within the housing into a left area and a right area, an intermediate plate further fixed in the right area, the intermediate plate dividing the right area into an upper space and a lower space, characterized in that an evaporator and an outlet fan assembly are installed in the left area, the outlet fan assembly is located in front of the evaporator, the evaporator is used to absorb heat from the air, and the outlet fan assembly is used to increase the flow of air in contact with the evaporator;

[0006] A water tank and a water pump are installed in the lower space, and the water tank and the water pump are connected through a water pump inlet pipe;

[0007] A compressor, a liquid storage tank, a plate heat exchanger, a gas-liquid separator, an expansion tank, an expansion valve, an economizer and a four-way valve are installed in the upper space. The four-way valve is connected to the compressor through an exhaust pipe, the four-way valve is connected to the gas-liquid separator through a four-way valve inlet pipe, the four-way valve is connected to the primary side of the plate heat exchanger through a plate exchange inlet pipe, and the four-way valve is also connected to the evaporator. The primary side of the plate heat exchanger is connected to the liquid storage tank through a plate exchange outlet pipe, the compressor is connected to the gas-liquid separator through a return air pipe, the expansion valve is connected to one side of the economizer, and the other end of the evaporator is connected to the expansion valve;

[0008] One end of the water pump is connected to the secondary side of the plate heat exchanger through a water pump outlet pipe, and the other end of the secondary side of the plate heat exchanger is formed with a water outlet on the side of the shell, and the water outlet is used to provide hot water to the water-using equipment;

[0009] The outer side surface of the right area is provided with a side panel, the inner wall of the side panel is connected with a folded edge, and the upper end of the folded edge and the middle partition is fixed with an electric control box.

[0010] According to the above technical solution, the top surface of the middle partition and the top surface of the folded edge are at the same height, so that the electric control box remains in a horizontal state.

[0011] According to the above technical solution, one end of the electric control box is located in the left area, and the other end is located in the right area.

[0012] According to the above technical solution, a heat sink is connected to the lower surface of the left end of the electric control box, and the heat sink is located on the back of the fan assembly. The heat dissipation capacity of the electric control box is improved through the cooperation of the heat sink and the fan assembly.

[0013] According to the above technical solution, the economizer is a heat exchanger, including a first interface, a second interface, a third interface and a fourth interface. The first interface is connected to the compressor through an enthalpy increase tube, the second interface is connected to the liquid storage tank through a subcooling inlet pipe, the third interface is connected to the fourth interface through an expansion valve, and the other end of the third interface is also connected to an external interface, which is connected to the evaporator. Through the economizer, part of the refrigerant becomes a subcooled liquid, reducing the evaporation amount before the evaporator and improving the evaporation efficiency.

[0014] According to the above technical solution, the shell includes a bottom plate, a cover plate, a front panel, an inspection panel and a back plate. The bottom plate is fixed on the bottom surface of the frame, the cover plate is fixed on the top surface of the frame, the front panel is fixed on the left area side to block the outside of the fan assembly, the inspection panel is installed in front of the right area, and the back plate is installed on the back of the right area. The cover plate, front panel, inspection panel and back plate are used to seal the shell and protect the internal equipment.

[0015] According to the above technical solution, the economizer and plate heat exchanger are installed on the side close to the side plate, the gas-liquid separator is installed on the right side of the middle partition, the compressor is installed at the center of the middle plate, and the four-way valve is located above the compressor. This distribution method of the arrangement improves the utilization of space.

[0016] According to the above technical solution, an expansion tank is further fixed in the upper space. The expansion tank is located on one side of the gas-liquid separator and on the left side of the upper space. The expansion tank is used to ensure the pressure of the pipeline.

[0017] According to the above technical solution, the fan assembly includes a fan bracket and two fans fixed on the fan bracket and distributed up and down. The fan bracket is fixed on the bottom plate, which increases the air flow on the evaporator surface and improves the evaporation efficiency.

[0018] Compared with the prior art, the beneficial effect achieved by the present invention is that by connecting the folded edges on the side panels, the electric control box is fixed on the top of the middle partition and the folded edges, so that the electric control box is located on the top of the shell, thereby avoiding water leakage from internal equipment causing water to enter the electric control box, reducing equipment damage caused by leakage, and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the framework structure of the utility model;

[0022] Figure 3 It is a three-dimensional diagram of the internal structure of the utility model;

[0023] Figure 4 It is a front view of the internal structure of the utility model;

[0024] Figure 5 It is a rear view of the internal structure of the utility model;

[0025] Figure 6 It is a connection diagram of the internal system of the utility model;

[0026] Figure 7 It is a connection diagram of the internal system of the present invention from another perspective;

[0027] In the figure: 1. Shell; 11. Frame; 12. Cover; 13. Access panel; 14. Front panel; 15. Evaporator; 16. Side panel; 161. Folding edge; 17. Middle partition; 18. Bottom plate; 19. Middle plate; 2. Outlet fan assembly; 21. Fan bracket; 22. Fan; 3. Water tank; 4. Water pump; 41. Water pump outlet pipe; 42. Water pump inlet pipe; 5. Plate heat exchanger; 51. Plate heat exchanger inlet pipe; 52. Plate heat exchanger outlet pipe; 5 3. Water outlet; 6. Expansion tank; 7. Liquid storage tank; 71. Subcooling inlet pipe; 8. Compressor; 81. Return air pipe; 82. Enthalpy increase pipe; 9. Four-way valve; 91. Four-way valve inlet pipe; 92. Exhaust pipe; 10. Economizer; 101. First interface; 102. Second interface; 103. Third interface; 104. Fourth interface; 105. Expansion valve; 106. External interface; 20. Gas-liquid separator; 30. Electrical control box; 301. Heat sink. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1 to 4 The utility model provides a technical solution: an integrated air source heat pump unit, including a shell 1, the shell 1 includes a frame 11, a middle partition 17 is fixed in the middle of the frame 11, the middle partition 17 divides the space in the shell 1 into a left area and a right area, and an intermediate plate 19 is further fixed in the right area, and the intermediate plate 19 divides the right area into an upper space and a lower space. An evaporator 15 and an outlet fan assembly 2 are installed in the left area, and the outlet fan assembly 2 is on the front side of the evaporator 15. The evaporator 15 is used to absorb heat in the air, and the outlet fan assembly 2 is used to increase the air flow in contact with the evaporator 15;

[0030] A water tank 3 and a water pump 4 are installed in the lower space. The water tank 3 and the water pump 4 are connected through a water pump inlet pipe 42. The water pump 4 is used to pump the water in the water tank 3 for heat exchange, thereby increasing the temperature of the water pumped out.

[0031] like Figures 5 to 7As shown, the upper space is equipped with a compressor 8, a liquid storage tank 7, a plate heat exchanger 5, a gas-liquid separator 20, an expansion tank 6, an expansion valve 105, an economizer 10 and a four-way valve 9. The four-way valve 9 is connected to the compressor 8 through an exhaust pipe 92, and the four-way valve 9 is connected to the gas-liquid separator 20 through a four-way valve inlet pipe 91. The four-way valve 9 is connected to the primary side of the plate heat exchanger 5 through a plate exchange inlet pipe 51. The four-way valve 9 is also connected to the evaporator 15. The primary side of the plate heat exchanger 5 is connected to the liquid storage tank 7 through a plate exchange outlet pipe 52. The compressor 8 is connected to the gas-liquid separator 2 0 is connected through the return gas pipe 81. The refrigerant passes through the gas-liquid separator 20 and the compressor 8, turning the low-temperature, low-pressure gas into high-temperature, high-pressure gas. The high-temperature, high-pressure gas undergoes heat exchange on the primary side of the plate heat exchanger 5 and condenses into a high-temperature, high-pressure liquid. The high-temperature, high-pressure liquid then enters the liquid storage tank 7, the economizer 10, and the expansion valve 105 in sequence and turns into a low-temperature, low-pressure atomized liquid again. When the atomized liquid passes through the evaporator 15, it absorbs heat from the air and turns into gas, completing the cycle of refrigerant compression, condensation, expansion, and evaporation.

[0032] One end of the water pump 4 is connected to the secondary side of the plate heat exchanger 5 via a water pump outlet pipe 41. The other end of the secondary side of the plate heat exchanger 5 is formed with a water outlet 53 on the side of the housing 1. The water outlet 53 is used to provide hot water to the water-using equipment. The secondary side of the plate heat exchanger 5 is used to allow the water in the water tank 3 to undergo heat exchange in the plate heat exchanger 5, thereby increasing the temperature of the water outlet from the water outlet 53 and meeting daily hot water needs.

[0033] A side panel 16 is provided on the outer side surface of the right area, and a folded edge 161 is connected to the inner wall of the side panel 16. The electric control box 30 is fixed to the upper end of the folded edge 161 and the middle partition 17. By arranging the electric control box 30 on the middle partition 17 and the folded edge 161, the electric control box 30 is located at the top of the shell 1, thereby preventing water from entering the electric control box 30 when the equipment leaks, causing damage to the equipment in the electric control box 30, reducing the loss of the equipment due to leakage, and further reducing the equipment maintenance cost.

[0034] The top surface of the middle partition 17 and the top surface of the folded edge 161 are at the same height, so that the electric control box 30 remains in a horizontal state.

[0035] like Figure 3 and 4 As shown, one end of the electric control box 30 is located in the left area and the other end is located in the right area, so that the equipment in the electric control box 30 is evenly distributed, reducing the pressure on the middle partition 17 and the folded edge 161.

[0036] A heat sink 301 is connected to the lower surface of the left end of the electric control box 30 . The heat sink 301 is located on the back of the fan assembly 2 . The fan assembly 2 is used to increase the air circulation capacity, improve the heat dissipation capacity of the heat sink 301 , and reduce the temperature inside the electric control box 30 .

[0037] like Figure 7 As shown, the economizer 10 is a heat exchanger, including a first interface 101, a second interface 102, a third interface 103 and a fourth interface 104. The first interface 101 is connected to the compressor 8 through the enthalpy increase pipe 82, the second interface 102 is connected to the liquid storage tank 7 through the subcooling inlet pipe 71, the third interface 103 is connected to the fourth interface 104 through the expansion valve 105, and the other end of the third interface 103 is also connected to the external interface 106, which is connected to the evaporator 15 through the subcooling inlet pipe 71. The refrigerant in the liquid storage tank 7 is introduced into the economizer 10, and flows from the second port 102 to the fourth port 104. After being cooled by the economizer 10, the refrigerant becomes a supercooled liquid. The refrigerant is then atomized into a low-temperature, low-pressure liquid through the expansion valve 105. A portion of this low-temperature, low-pressure liquid enters the compressor 8 through the third port 103 and the first port 101 in sequence, and the remaining portion enters the evaporator 15 through the external port 106. This reduces the amount of vaporization before the evaporator and improves evaporation efficiency.

[0038] like Figure 1 As shown, the shell 1 includes a base plate 18, a cover plate 12, a front panel 14, an inspection panel 13 and a back panel. The base plate 18 is fixed on the bottom surface of the frame 11, the cover plate 12 is fixed on the top surface of the frame 11, the front panel 14 is fixed on the left area side to block the outside of the fan assembly 2, the inspection panel 13 is installed in front of the right area, and the back panel is installed on the back of the right area. The shell 1 is sealed by the cover plate 12, the front panel 14, the inspection panel 13 and the back panel to protect the equipment in the shell 1 and prevent external foreign matter from entering the shell 1.

[0039] The economizer 10 and the plate heat exchanger 5 are installed on the side close to the side plate 16, the gas-liquid separator 20 is installed on the right side of the middle partition 17, the compressor 8 is installed at the center of the middle plate 19, and the four-way valve 9 is located above the compressor 8. The distribution method of this equipment improves the utilization efficiency of the upper space, centralizes the equipment, and reduces the occupied space.

[0040] An expansion tank 6 is also fixed in the upper space. The expansion tank 6 is located on one side of the gas-liquid separator 20 and on the left side of the upper space. By setting the expansion tank 6 and connecting it to the water tank 3, the pressure of the water circulation pipeline is kept stable.

[0041] like Figure 3 As shown, the fan assembly 2 includes a fan bracket 21 and two fans 22 fixed on the fan bracket 21 and distributed up and down. The fan bracket 21 is fixed on the base plate 18. The fans 22 distributed up and down increase the contact area between the evaporator 15 and the air and the air flow rate, thereby maximizing the absorption of air heat.

[0042] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An integrated air source heat pump unit, comprising a housing, the housing comprising a frame, a middle partition fixed in the middle of the frame, the middle partition dividing the space within the housing into a left area and a right area, a middle plate further fixed in the right area, the middle plate dividing the right area into an upper space and a lower space, characterized in that: An evaporator and an outlet fan assembly are installed in the left area. The outlet fan assembly is located in front of the evaporator. The evaporator is used to absorb heat from the air. The outlet fan assembly is used to increase the air flow in contact with the evaporator. A water tank and a water pump are installed in the lower space, and the water tank and the water pump are connected through a water pump inlet pipe; A compressor, a liquid storage tank, a plate heat exchanger, a gas-liquid separator, an expansion tank, an expansion valve, an economizer and a four-way valve are installed in the upper space. The four-way valve is connected to the compressor through an exhaust pipe, the four-way valve is connected to the gas-liquid separator through a four-way valve inlet pipe, the four-way valve is connected to the primary side of the plate heat exchanger through a plate exchange inlet pipe, and the four-way valve is also connected to the evaporator. The primary side of the plate heat exchanger is connected to the liquid storage tank through a plate exchange outlet pipe, the compressor is connected to the gas-liquid separator through a return air pipe, the expansion valve is connected to one side of the economizer, and the other end of the evaporator is connected to the expansion valve; One end of the water pump is connected to the secondary side of the plate heat exchanger through a water pump outlet pipe, and the other end of the secondary side of the plate heat exchanger is formed with a water outlet on the side of the shell, and the water outlet is used to provide hot water to the water-using equipment; The outer side surface of the right area is provided with a side panel, the inner wall of the side panel is connected with a folded edge, and the upper end of the folded edge and the middle partition is fixed with an electric control box.

2. The integrated air source heat pump unit according to claim 1, characterized in that: The top surface of the middle partition and the top surface of the folded edge are at the same height.

3. The integrated air source heat pump unit according to claim 1, characterized in that: One end of the electric control box is located in the left area, and the other end is located in the right area.

4. The integrated air source heat pump unit according to claim 1, characterized in that: A heat sink is connected to the lower surface of the left end of the electric control box, and the heat sink is located on the back of the fan assembly.

5. The integrated air source heat pump unit according to claim 1, characterized in that: The economizer is a heat exchanger, including a first interface, a second interface, a third interface and a fourth interface. The first interface is connected to the compressor through an enthalpy increase tube, the second interface is connected to the liquid storage tank through a subcooling inlet pipe, the third interface is connected to the fourth interface through an expansion valve, and the other end of the third interface is also connected to an external interface, which is connected to the evaporator.

6. The integrated air source heat pump unit according to claim 1, characterized in that: The shell includes a bottom plate, a cover plate, a front panel, an inspection panel and a back plate. The bottom plate is fixed on the bottom surface of the frame, the cover plate is fixed on the top surface of the frame, the front panel is fixed on the left area side to block the outside of the fan assembly, the inspection panel is installed in front of the right area, and the back plate is installed on the back of the right area.

7. The integrated air source heat pump unit according to claim 1, characterized in that: The economizer and plate heat exchanger are installed on the side surface close to the side plate, the gas-liquid separator is installed on the right side of the middle partition, the compressor is installed at the center of the middle plate, and the four-way valve is located above the compressor.

8. The integrated air source heat pump unit according to claim 1, characterized in that: An expansion tank is also fixed in the upper space. The expansion tank is located on one side of the gas-liquid separator and on the left side of the upper space.

9. The integrated air source heat pump unit according to claim 1, characterized in that: The fan assembly includes a fan bracket and two fans fixed on the fan bracket and distributed up and down. The fan bracket is fixed on the bottom plate.

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