Cooling and heating heat pump unit suitable for building air conditioning position

Abstract

The utility model discloses a cold and warm heat pump unit suitable for a building air-conditioning position, which comprises a cold and warm heat pump unit with an upper-lower layer structure combined by a lower layer component and an upper layer component, the lower layer assembly comprises a chassis, a front left stand column support, a front right stand column support, a left rear stand column, a right rear stand column, a front lower panel, a left lower panel, a right lower panel, a rear lower panel, an electric cabinet assembly, a compressor, a condenser, a balance tank, a middle heat exchange throttling assembly, a bridge type rectification one-way valve assembly, a four-way valve assembly, a damping disc assembly, a water flow switch and a front middle lower stand column. The problems that a left-right structure unit designed in the prior art is too long and cannot adapt to the length space of the size of a building air conditioner are effectively solved; according to the design, a left-right structure is made into an up-down structure, so that the length of the whole machine is effectively shortened, and the cold conduction effect and the heat conduction effect caused by poor air guide of an air conditioner position are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to a heating and cooling heat pump unit suitable for building air conditioning units. Background Technology

[0002] Existing air conditioning heat pumps have a side-discharge structure with a left-right orientation, and are relatively long, with most exceeding 1 meter in length. They have return air on the left and rear sides, and a small frontal area, making them unsuitable for installation in spaces with an air conditioning unit length of less than 1 meter, thus failing to meet the needs of building customers. Utility Model Content

[0003] The technical problem solved by this utility model is to overcome the existing technical problems in providing a heating and cooling heat pump unit suitable for building air conditioning locations.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a heating and cooling heat pump unit suitable for building air conditioning units, comprising a lower-level component and an upper-level component, wherein the lower-level component includes a chassis, a front left column support, a front right column support, a left rear column, a right rear column, a front lower panel, a left lower panel, a right lower panel, a rear lower panel, an electrical control box assembly, a compressor, a condenser, a balance tank, an intermediate heat exchange throttling assembly, a bridge-type rectifier check valve assembly, a four-way valve assembly, a shock-absorbing disc assembly, a flow switch, and front middle lower columns; the electrical control box assembly includes an electrical box base box and an electrical box. The system includes: a cover plate, a liquid-cooled inverter drive board, a control board, a reactor, an input power terminal block, and an output control power terminal block; the intermediate heat exchange throttling assembly includes a plate heat exchange economizer, a filter, a main electronic expansion valve, an enthalpy-increasing electronic expansion valve, and an enthalpy-increasing tube silencer; the bridge-type rectifier check valve assembly includes a check valve and a Y-type three-way valve; the four-way valve assembly includes a four-way valve, a high-pressure switch, a low-pressure switch, a low-pressure sensor, and an exhaust pipe silencer; the shock-absorbing disc assembly includes a shock-absorbing disc, shock-absorbing feet, and a compressor fixing screw; and the front left column bracket, front right column bracket, left rear column, and right rear column are also included. The uprights are installed at the four diagonal corners of the chassis to form dead-angle support rods; the front lower panel, left lower panel, right lower panel, and rear lower panel are respectively fixed to the uprights; the front middle lower upright is fixed to the middle of the front side of the chassis, and the left side of the electrical control box assembly is fixed to the front middle lower upright and the front right upright bracket; the shock absorber assembly is installed on the left rear side of the chassis; the compressor is installed above the shock absorber assembly; the intermediate heat exchange throttling assembly is fixed to the left front side of the chassis, the condenser is installed on the right rear side of the chassis, and the condenser inlet and outlet water pipe joints are fixed to the right rear upright; the water flow switch is installed on the condenser outlet water pipe; the lower layer The components include a compressor, condenser, finned evaporator, motor, fan blades, intermediate heat exchange throttling assembly, bridge-type rectifier check valve assembly, four-way valve assembly, electrical control box assembly, and balance tank, which are selectively connected via process pipes. The four-way valve assembly is connected to the compressor outlet and return port, the condenser inlet, and the gas collection pipe of the finned evaporator in the upper assembly. The balance tank is fixed to the inside of the condenser. The bridge-type rectifier check valve assembly is connected to the main electronic expansion valve of the intermediate heat exchange throttling assembly, the liquid-cooled variable frequency drive board liquid-cooled pipe of the electrical control box assembly, the liquid outlet pipe of the condenser, and the liquid distribution pipe of the finned evaporator in the upper assembly.

[0005] Preferably, the upper component includes an air outlet grille, an air guide ring panel, a water collection tray, fan blades, a motor, a motor bracket, a finned evaporator, and a top cover; the air outlet grille is fixed to the air outlet of the air guide ring panel, and the two sides of the air guide ring panel are fixed to the two end plates of the finned evaporator; the air guide ring panel and the finned evaporator are installed together on the water collection tray; the motor bracket is arranged from top to bottom, with the top clamping plate of the motor bracket fastened to the top of the finned evaporator and the top front clamping plate mating and fixed to the inner side of the air guide ring panel, and the bottom of the motor bracket fixed to the water collection tray; the motor is mounted on the motor bracket. The fan blades are mounted on the motor shaft on the central motor tray. The upper component is assembled into a cuboid structure consisting of an air outlet grille, an air guide ring panel, a water collection tray, fan blades, a motor, a motor bracket, a finned evaporator, and a top cover. Air returns from the left, right, and rear sides and is blown out through the finned evaporator from the air guide ring panel to the air ring and the air outlet grille. The upper component is mounted on the top of the front left and front right column brackets of the lower component. The middle of the left and right rear columns is fixed to the side of the water collection tray of the upper component, and the top of the left and right rear columns is fixed to the top cover of the upper component.

[0006] Preferably, the upper component is surrounded by an air guide ring panel and connected and fixed to the two end plates on both sides of the finned evaporator. The air outlet screen is fixed on the air guide port of the air guide ring panel to form an air outlet. The finned evaporator forms a return air side on three sides. The entire component is fixed on the front left column support, front right column support, left rear column and right rear column of the lower component.

[0007] Preferably, the compressor, condenser, finned evaporator, motor, fan blades, intermediate heat exchange throttling assembly, bridge rectifier check valve assembly, four-way valve assembly, electrical control box assembly, and balance tank together form a heating and cooling heat pump unit system.

[0008] Preferably, the front left column bracket, front right column bracket, left rear column, and right rear column are installed at the four diagonal corners of the chassis to form dead-angle column support rods; the front lower panel, left lower panel, right lower panel, and rear lower panel are respectively fixed to the columns; the front middle lower column is fixed to the middle of the front side of the chassis, and the left side of the electrical control box assembly is fixed to the front middle lower column and the front right column bracket; the shock absorber assembly is installed on the left rear side of the chassis; the compressor is installed above the shock absorber assembly; the intermediate heat exchange throttling assembly is fixed to the left front side of the chassis, behind the front side of the compressor; the cold... The condenser is installed on the right rear side of the chassis, and the condenser inlet and outlet water pipe joints are fixed on the right rear column; the water flow switch is installed on the condenser outlet water pipe; the four-way valve assembly is connected to the compressor outlet and return port, the condenser inlet, and the gas collection pipe of the finned evaporator of the upper assembly; the balance tank is fixed to the inside of the condenser; the bridge-type rectifier check valve assembly is connected to the main circuit electronic expansion valve of the intermediate heat exchange throttling assembly, the liquid-cooled variable frequency drive board liquid-cooled pipe of the electrical control box assembly, the liquid outlet pipe of the condenser, and the liquid distribution pipe of the finned evaporator of the upper assembly.

[0009] Compared with the prior art, the beneficial effects of this utility model are: this application effectively solves the problem that the length of the left and right structure unit designed in the prior art is too long and cannot be adapted to the length space of the building air conditioning position; this design makes the left and right structure into an up and down structure, which effectively shortens the length of the whole unit and reduces the cold conduction effect and heat conduction effect caused by poor air guiding of the air conditioning position. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the installation of the upper and lower components and the air inlet and outlet of this utility model;

[0012] Figure 3 This is an exploded view of the upper and lower layer components of this utility model;

[0013] Figure 4 This is an exploded view of the upper component of this utility model;

[0014] Figure 5 This is an exploded view of the lower-level components of this utility model;

[0015] Figure 6 This is a schematic diagram of the electrical control box assembly of this utility model;

[0016] Figure 7 This is a schematic diagram of the system piping connection of this utility model;

[0017] The diagram shows: 1. Lower layer component; 2. Air outlet grille; 3. Air guide plate. 4. Upper Components; 5. Water Tray; 6. Fan Blade; 7. Motor; 8. Motor Bracket; 9. Finned Evaporator; 10. Top Cover; 11. Chassis; 12. Front Left Column Bracket; 13. Front Right Column Bracket; 14. Left Rear Column; 15. Right Rear Column; 16. Front Lower Panel; 17. Left Lower Panel; 18. Right Lower Panel; 19. Rear Lower Panel; 20. Electrical Control Box Assembly; 21. Compressor; 22. Condenser; 23. Balance Tank; 24. Intermediate Heat Exchange Throttling Assembly; 25. Bridge-Type Rectifier Check Valve Assembly; 26. Four-Way Valve Assembly; 27. Vibration Damping Plate Assembly; 28. Flow Switch; 29. ​​Front Middle Lower Column; 30. T-Type Tee; 201. Electrical Box Base Box; 202. Electrical Box Cover; 203. Liquid-Cooled Variable Frequency Drive Board; 204. Control... 205. Plate; 206. Reactor; 207. Input power terminal block; 208. Output control power terminal block; 241. Plate heat exchanger economizer; 242. Filter; 243. Main circuit electronic expansion valve; 244. Enthalpy-increasing electronic expansion valve; 245. Enthalpy-increasing tube silencer; 246. T-type tee; 251. Check valve one; 252. Check valve two; 253. Check valve three; 254. Check valve four; 255. Y-type tee; 256. Y-type tee; 257. T-type tee; 258. T-type tee; 261. Four-way valve; 262. High-pressure switch; 263. Low-pressure switch; 264. Low-pressure sensor; 265. Exhaust pipe silencer; 271. Vibration damping disc; 272. Vibration damping pad; 273. Compressor fixing screw; G1~G17. Process pipe; Detailed Implementation

[0018] 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.

[0019] Please see Figures 1 to 7In this embodiment of the utility model, a heat pump unit suitable for building air conditioning units includes a lower layer assembly 1, an upper layer assembly 4, a chassis 11, a front left column support 12, a front right column support 13, a left rear column 14, a right rear column 15, a front lower panel 16, a left lower panel 17, a right lower panel 18, a rear lower panel 19, an electrical control box assembly 20, a compressor 21, a condenser 22, a balance tank 23, an intermediate heat exchange throttling assembly 24, a bridge-type rectifier check valve assembly 25, a four-way valve assembly 26, a shock absorber assembly 27, a flow switch 28, a front middle lower column 29, a T-type tee 30, an electrical box bottom box 201, an electrical box cover 202, a liquid-cooled inverter drive board 203, a control board 204, a reactor 205, an input power terminal block 206, and an output control power supply. Terminal block 207, plate heat exchanger economizer 241, filter 242, main circuit electronic expansion valve 243, enthalpy-increasing electronic expansion valve 244, enthalpy-increasing tube silencer 245, T-type tee 30, one-way valve 1 251, one-way valve 252, one-way valve 3 253, one-way valve 4 254, Y-type tee 255, Y-type tee 256, T-type tee 257, T-type tee 258, four-way valve 261, high-pressure switch 262, low-pressure switch 263, low-pressure sensor 264, exhaust pipe silencer 265, shock absorber 271, shock absorber pad 272, compressor fixing screw 273, air outlet screen 2, air guide ring panel 3, water receiving tray 5, fan blade 6, motor 7, motor bracket 8, finned evaporator 9, top cover 10, process pipes G1~G17;

[0020] Please see Figures 1-2 In this embodiment of the present invention, a heating and cooling heat pump unit suitable for building air conditioning units includes a lower component 1 and an upper component 4. The upper component is installed on the front left column support 12, front right column support 13, left rear column 14, and right rear column 15 of the lower component. The bottom of the water receiving tray 5 of the upper component is fixed to the top of the front left column support 12 of the lower component 1, and the bottom right end of the bottom of the water receiving tray 5 of the upper component is fixed to the top of the front right column support 13 of the lower component. The left rear end side of the water receiving tray 5 of the upper component 4 is fixed to the middle edge of the left rear column 14; the right rear end side of the water receiving tray 5 of the upper component 4 is fixed to the middle edge of the right rear column 15; the left rear end side of the top cover 10 of the upper component 4 is fixed to the top side of the left rear column 14; and the right rear end side of the top cover 10 of the upper component 4 is fixed to the top side of the right rear column 15, forming an integral structure with upper and lower components.

[0021] Please see Figure 4In this embodiment of the utility model, the lower component 1 includes an air outlet mesh cover 2, an air guide ring panel 3, a water receiving tray 5, a fan blade 6, a motor 7, a motor bracket 8, a finned evaporator 9, and a top cover 10. The finned evaporator 9 is mounted on the tray of the water receiving tray 5. The rear side clamp of the top of the motor bracket 8 is attached to the finned evaporator 9, clamping the top of the fins. The bottom of the motor bracket 8 is fixed to the middle of the water receiving tray. The bottom of the air guide ring panel 3 is snapped onto the front side of the water receiving tray 5 and fixed with screws to the water receiving tray 5. The two end plates of plate 3 are fixed to the two end plates of finned evaporator 9; motor 7 is mounted on the middle tray of motor bracket 8; fan blade 6 is screwed onto the rotating shaft of motor 7; air outlet screen 2 is mounted on air guide ring panel 3, facing the center of air guide ring; top cover opening is fixed on top of air guide ring panel 3 and finned evaporator 9; the entire component is assembled into upper component 4; forming a three-sided windward return air composed of left and right sides and rear side; air is blown out from air guide ring of air guide ring panel 3 to air outlet screen 2;

[0022] Please see Figure 5In this embodiment of the utility model, the lower component 1 includes a chassis 11, a front left column bracket 12, a front right column bracket 13, a left rear column 14, a right rear column 15, a front lower panel 16, a left lower panel 17, a right lower panel 18, a rear lower panel 19, an electrical control box assembly 20, a compressor 21, a condenser 22, a balance tank 23, an intermediate heat exchange throttling assembly 24, a bridge-type rectifier check valve assembly 25, a four-way valve assembly 26, a shock absorber assembly 27, a flow switch 28, front middle and lower columns 29, a T-type tee 30, an electrical box bottom box 201, an electrical box cover 202, a liquid-cooled frequency converter drive board 203, a control board 204, a reactor 205, an input power terminal block 206, an output control power terminal block 207, and a board. Heat exchanger economizer 241, filter 242, main circuit electronic expansion valve 243, enthalpy-increasing electronic expansion valve 244, enthalpy-increasing tube silencer 245, T-type tee 30, one-way valve 1 251, one-way valve 252, one-way valve 3 253, one-way valve 4 254, Y-type tee 255, Y-type tee 256, T-type tee 257, T-type tee 258, four-way valve 261, high-pressure switch 262, low-pressure switch 263, low-pressure sensor 264, exhaust pipe silencer 265, shock absorber 271, shock absorber pads 272, compressor fixing screw 273, process pipes G1~G17; front left column bracket 12 is installed on the inner side of the left front section of the chassis; front right column bracket 13 is installed on the inner side of the right front end of the chassis. The left rear pillar 14 is installed on the inner side of the left rear end of the chassis; the right rear pillar 15 is installed on the inner side of the right rear end of the chassis; one side of the lower left panel 17 is hooked to the left rear pillar 14, and the other half is fixed to the front left pillar bracket 12 with screws, with the bottom fixed to the left side of the chassis 11; one side of the lower right panel 18 is hooked to the right rear pillar 15, and the other half is fixed to the front right pillar bracket 13 with screws, with the bottom fixed to the right side of the chassis 11; the lower rear panel 19 is hooked to the left rear pillar 14 and the right rear pillar 15 on both sides, with the upper part of the lower rear panel 19 fixed to the water receiving tray 5 and the lower part fixed to the chassis 11; the front middle lower pillar 29 is installed in the middle position of the front side of the chassis 11; the electrical control box assembly 20 The electrical control box assembly 20 is mounted on the chassis 11, with its two ends fixed to the front middle lower column 29 and the front right column bracket 13, respectively; the shock absorber assembly 27 is mounted on the left rear side of the chassis 11; the compressor 21 is mounted above the shock absorber assembly 27; the intermediate heat exchange throttling assembly 24 is fixed on the left front side of the chassis 11, behind the front side of the compressor 21; the condenser 22 is mounted on the right rear side of the chassis 11, with the inlet and outlet water pipe joints of the condenser 22 fixed on the right rear column 15; the water flow switch 28 is mounted on the outlet water pipe of the condenser 22; the four-way valve assembly 26 is connected to the outlet and return ports of the compressor 21, the inlet port of the condenser 22, and the gas collecting pipe of the finned evaporator 9 of the upper assembly 4; the balance tank 23 is fixed to the inside of the condenser 22.The bridge-type rectifier check valve assembly 25 is connected to the main circuit electronic expansion valve 243 of the intermediate heat exchange throttling assembly 24, the liquid-cooled variable frequency drive board 203 of the electrical control box assembly 20, the liquid outlet pipe of the condenser 22, and the liquid distribution pipe of the finned evaporator 9 of the upper assembly 4.

[0023] Please see Figure 6 In this embodiment of the present invention, the electrical control box assembly 20 includes an electrical box base box 201, an electrical box cover plate 202, a liquid-cooled inverter drive board 203, a control board 204, a reactor 205, an input power terminal block 206, and an output control power terminal block 207. The liquid-cooled inverter drive board 203 is installed on the upper left side of the electrical box base box 201. The liquid cooling pipes and liquid cooling heat sink of the liquid-cooled inverter drive board 203 extend out of the back of the electrical box base box, and the liquid cooling pipes extend out to the side. The control board 204 is installed inside the electrical box 201 at the upper right end; the reactor 205 is fixed at the rear of the electrical box 201; the input power terminal block 206 is installed inside the electrical box 201 near the lower end of the liquid-cooled inverter drive board 203; the output control power terminal block 207 is installed inside the electrical box 201 near the lower end of the control board 204; the electrical box cover 202 covers the front of the electrical box 201, sealing the entire electrical box 201.

[0024] In this embodiment of the utility model, please refer to Figure 3 and Figure 7The return port A of compressor 21 and the S end of four-way valve 261 are connected via process pipe G1. Low-pressure switch 263 and low-pressure sensor 264 are respectively installed on process pipe G1. The discharge port B of compressor 21 is connected to the a end of discharge pipe muffler 265 via process pipe G5. The b end of discharge pipe muffler 265 and the D port of four-way valve 261 are connected via process pipe G6. The C port of four-way valve 261 and the A port of condenser 22 are connected via process pipe G2. The E port of four-way valve 261 and the B end of finned evaporator 9 are connected via process pipe G3. The B port of condenser 22 is connected to the T-type three-way valve 261. Port b of T-type tee 30 is connected via process pipe G7; a balance tank 23 is installed on port b of T-type tee 30; port a of T-type tee 30 and port a of Y-type tee 255 are connected via process pipe G8; end c of Y-type tee 255 is connected to end a of check valve 1 251; end b of check valve 251 is connected to end b of T-type tee 257; end a of T-type tee 257 is connected to end b of check valve 252; end a of check valve 252 is connected to end c of Y-type tee 256; end b of Y-type tee 256 is connected to end b of check valve 3 253; end a of check valve 3 253 is connected to end c of T-type tee 256. 58's a end is connected; T-type tee 258's b end is connected to Y-type tee 255's b end; T-type tee 257's c end is connected to the liquid cooling pipe's a end of the liquid-cooled variable frequency drive board 203 via process pipe G9; the liquid cooling pipe's b end of the liquid-cooled variable frequency drive board 203 is connected to filter 242 via process pipe G10; filter 242 is connected to plate heat exchanger economizer 241's A end via process pipe G11; plate heat exchanger economizer 241's B end is connected to T-type tee 246's b end via process pipe G10; T-type tee 246's c end is connected to the enthalpy-increasing electronic expansion valve 244's a end; enthalpy-increasing electronic expansion... The b end of valve 244 is connected to the C end of plate heat exchanger economizer 241 via process pipe G15; the D end of plate heat exchanger economizer 241 is connected to the b end of enthalpy-increasing tube silencer 245 via process pipe G16; the a end of enthalpy-increasing tube silencer 245 is connected to the C end of compressor 21 via process pipe G17; the a end of T-type tee 246 is connected to the a end of main circuit electronic expansion valve 243 via process pipe G13; the b end of main circuit electronic expansion valve 243 is connected to the c end of T-type tee 258 via process pipe G14; the a end of Y-type tee 256 is connected to the B end of finned evaporator 9 via process pipe G18.

[0025] In this embodiment of the utility model, please refer to Figure 7A heat pump unit suitable for building air conditioning installations, in heating mode, the refrigerant in the system is compressed into high-temperature, high-pressure gas by compressor 21, flows through process pipe G5 to exhaust pipe silencer 265 for expansion, vibration reduction, and noise reduction, and then flows through process pipe G6 to port D of four-way valve 261; from port C of four-way valve 261, it flows through process pipe G2 to condenser 22; the refrigerant exchanges heat with the water entering the condenser after passing through the condenser, the water temperature rises, and the refrigerant becomes a high-pressure, medium-temperature gas-liquid mixture after heat exchange, and then flows through process pipe G7 to balance tank 23; partial gas-liquid mixing refrigeration. The refrigerant enters the balance tank 23; most of the liquid-liquid mixed refrigerant flows to the liquid-cooled variable frequency drive board 203 through process pipe G9; after entering the liquid-cooled variable frequency drive board 203, the refrigerant is cooled down by the liquid cooling pipe and then enters the filter 242 through process pipe G10 to filter impurities in the system. After passing through process pipe G11, it enters the plate heat exchanger economizer 241 and flows out from process pipe G15. A portion of the gas-liquid mixed refrigerant enters the enthalpy-increasing electronic expansion valve 244 for throttling and becomes a low-temperature, low-pressure liquid, which then enters the plate heat exchanger economizer 241 through process pipe G15. After heat exchange between the medium-temperature, high-pressure liquid refrigerant in the auxiliary channel and the main channel, the refrigerant in the auxiliary channel becomes a low-pressure gaseous refrigerant. It flows through process pipe G16 to the enthalpy-increasing pipe silencer 245 for noise reduction and vibration damping, then returns to port C of compressor 21 via process pipe G17 and enters the compressor cavity for further compression. Another portion of the refrigerant from the main side of the plate heat exchanger 241 enters the main circuit electronic expansion valve 243 via process pipe G13, becoming a low-temperature, low-pressure liquid refrigerant. It then flows through process pipe G14 to the one-way valve 253 and then through the Y-type tee 256. The refrigerant exits from the port and flows into process pipe G18, then into the branch pipe at end B of the finned evaporator 9. The low-temperature, low-pressure refrigerant enters the finned evaporator for heat exchange. The airflow is drawn by the motor fan blades, causing the gas to pass through the finned heat exchanger and exchange heat with the refrigerant in the heat exchanger tubes. This transforms the low-temperature, low-pressure liquid refrigerant into a low-temperature, low-pressure gaseous saturated refrigerant, which then returns to end E of the four-way valve through process pipe G3. From there, it exits from the four-way valve S and flows into process pipe G1, returning to end A of the compressor. After entering the compressor's gas-liquid separator for gas-liquid separation, the gaseous refrigerant returns to the compressor cavity for further compression.

[0026] In this embodiment of the utility model, please refer to Figure 7A heat pump unit suitable for building air conditioning installations, in cooling mode, the refrigerant in the system is compressed into high-temperature, high-pressure gas by compressor 21, flows through process pipe G5 to the exhaust pipe silencer 265 for expansion, vibration damping, and noise reduction, and then flows through process pipe G6 to port D of four-way valve 261; from port E of four-way valve 261, it flows through process pipe G3 to end A of finned evaporator 9, and is then diverted into the heat exchanger's distribution pipe for heat dissipation. The gas flowing in the air is drawn by the motor fan blades, causing it to exchange heat with the refrigerant inside the finned heat exchanger tubes. This high-temperature, high-pressure gaseous refrigerant... After becoming a medium-temperature, high-pressure liquid refrigerant, it flows through process pipe G18 to Y-type tee 256, then enters check valve 252, and then through process pipe G9 to liquid-cooled inverter drive board 203. The refrigerant enters the liquid-cooled inverter drive board 203, where it is cooled by liquid cooling pipes before flowing through process pipe G10 to filter 242 to remove impurities. It then passes through process pipe G11 to enter plate heat exchanger economizer 241 and flows out through process pipe G15. A portion of the gas-liquid mixed refrigerant enters enthalpy-increasing electronic expansion valve 244 for throttling, becoming low-temperature liquid. Low-temperature, low-pressure liquid enters the auxiliary channel of the plate heat exchanger economizer 241 through process pipe G15. After exchanging heat with the medium-temperature, high-pressure liquid refrigerant in the main channel, the refrigerant in the auxiliary channel becomes low-pressure gaseous refrigerant. It then flows through process pipe G16 to the enthalpy-increasing tube silencer 245 for noise reduction and vibration damping. After passing through process pipe G17, it returns to port C of the compressor 21 and enters the compressor cavity for further compression. Another portion of the refrigerant exiting from the main side of the plate heat exchanger economizer 241 enters the main circuit electronic expansion valve 243 through process pipe G13, where it is throttled and becomes low-temperature, low-pressure liquid refrigerant. After flowing through process pipe G14 to check valve 254, the refrigerant exits through port a of Y-type tee 255, enters process pipe G8 and flows through process pipe G7 to condenser 22. The low-temperature, low-pressure refrigerant enters condenser 22 and exchanges heat with water for evaporation, causing the water temperature to drop. The refrigerant then becomes a low-temperature, low-pressure saturated gas, flows through process pipe G2 to port C of four-way valve 261, and then exits from four-way valve 261S to process pipe G1, returning to port A of compressor 21. After gas-liquid separation in the gas-liquid separator of compressor 21, the gaseous refrigerant returns to the compressor 21 cavity for recompression.

[0027] 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 these 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. A heating and cooling heat pump unit suitable for building air conditioning units, comprising a heating and cooling heat pump unit with an upper and lower structure consisting of a lower component (1) and an upper component (4), characterized in that: The lower-level assembly (1) includes a chassis (11), a front left column support (12), a front right column support (13), a left rear column (14), a right rear column (15), a front lower panel (16), a left lower panel (17), a right lower panel (18), a rear lower panel (19), an electrical control box assembly (20), a compressor (21), a condenser (22), a balance tank (23), an intermediate heat exchange throttling assembly (24), a bridge-type rectifier check valve assembly (25), a four-way valve assembly (26), a shock-absorbing disc assembly (27), and a water flow control assembly. The electrical control box assembly (20) includes an electrical box bottom box (201), an electrical box cover plate (202), a liquid-cooled variable frequency drive board (203), a control board (204), a reactor (205), an input power terminal block (206), and an output control power terminal block (207); the intermediate heat exchange throttling assembly (24) includes a plate heat exchange economizer (241), a filter (242), a main circuit electronic expansion valve (243), an enthalpy-increasing electronic expansion valve (244), and an enthalpy-increasing tube silencer (245); The bridge-type rectifier check valve assembly (25) includes check valve one (251), check valve two (252), check valve three (253), check valve four (254), and Y-type three-way valve (255); the four-way valve assembly (26) includes a four-way valve (261), a high-pressure switch (262), a low-pressure switch (263), a low-pressure sensor (264), and an exhaust pipe muffler (265); the shock absorber assembly (27) includes a shock absorber (271), shock absorber pads (272), and a compressor fixing screw (273); the front left upright... The column bracket (12), the front right column bracket (13), the left rear column (14), and the right rear column (15) are installed on the four diagonal corners of the chassis (11) to form dead angle column support rods; the front lower panel (16), the left lower panel (17), the right lower panel (18), and the rear lower panel (19) are respectively fixed on the columns; the front middle lower column (29) is fixed in the middle of the front side of the chassis, and the left side of the electrical control box assembly (20) is fixed to the front middle lower column (29) and the front right column bracket (13); the shock absorber assembly (27) is installed on the left rear side of the chassis (11); The compressor (21) is installed above the shock absorber assembly (27); the intermediate heat exchange throttling assembly (24) is fixed on the left front side of the chassis (11); the condenser (22) is installed on the right rear side of the chassis (11); the inlet and outlet water pipe joints of the condenser (22) are fixed on the right rear column (15); the water flow switch (28) is installed on the outlet water pipe of the condenser (22); the lower assembly (1) includes the compressor (21), condenser (22), finned evaporator (9), motor (7), fan blade (6), intermediate heat exchange throttling assembly (24), bridge rectifier check valve assembly (25), four-way valve assembly (26), and electrical control. The box assembly (20) and the balance tank (23) are selectively connected through process pipes. The four-way valve assembly (26) is connected to the outlet and return port of the compressor (21), the inlet of the condenser (22), and the gas collection pipe of the finned evaporator (9) of the upper assembly (4). The balance tank (23) is fixed to the inside of the condenser (22). The bridge-type rectifier check valve assembly (25) is connected to the main electronic expansion valve (243) of the intermediate heat exchange throttling assembly (24), the liquid-cooled variable frequency drive board (203) of the electrical control box assembly (20), the liquid outlet pipe of the condenser (22), and the liquid distribution pipe of the finned evaporator (9) of the upper assembly (4).

2. The heating and cooling heat pump unit suitable for building air conditioning locations according to claim 1, characterized in that: The upper component (4) includes an air outlet screen (2), an air guide ring panel (3), a water collection tray (5), a fan blade (6), a motor (7), a motor bracket (8), a finned evaporator (9), and a top cover (10). The air outlet screen (2) is fixed to the air outlet of the air guide ring panel (3), and the two sides of the air guide ring panel (3) are fixed to the two side end plates of the finned evaporator (9). The air guide ring panel (3) and the finned evaporator (9) are installed together on the water collection tray (5). The motor bracket (8) is arranged from top to bottom, with the top plate of the motor bracket (8) fastened to the top of the finned evaporator (9) and the top front plate connected to the inner side of the air guide ring panel (3). The bottom of the motor bracket (8) is fixed on the water collection tray (5). The motor (7) is installed in the middle of the motor bracket (8). On the machine tray, the fan blade (6) is installed on the motor shaft; the upper component (4) is assembled into a cuboid structure by the air outlet screen (2), the air guide ring panel (3), the water receiving tray (5), the fan blade (6), the motor (7), the motor bracket (8), the finned evaporator (9), and the top cover (10). The air returns from the left and right sides and the rear side, and is blown out from the air guide ring panel (3) to the air ring and the air outlet screen through the finned evaporator (9); the upper component (4) is installed on the top of the front left column bracket (12) and the front right column bracket (13) of the lower component (1), the middle of the left rear column (14) and the right rear column (15) is fixed to the side of the water receiving tray of the upper component (4), and the top of the left rear column (14) and the right rear column (15) is fixed to the top cover (10) of the upper component (4).

3. The heat pump unit suitable for building air conditioning units according to claim 2, characterized in that, The upper component (4) is surrounded by the air guide ring panel (3) and connected and fixed to the two end plates of the finned evaporator (9). The air outlet screen (2) is fixed on the air guide port of the air guide ring panel (3) to form an air outlet. The finned evaporator (9) forms a return air side on three sides. The entire component is fixed on the front left column support (12), front right column support (13), left rear column (14), and right rear column (15) of the lower component.

4. The heating and cooling heat pump unit suitable for building air conditioning locations according to claim 3, characterized in that, The compressor (21), condenser (22), finned evaporator (9), motor (7), fan blade (6), intermediate heat exchange throttling assembly (24), bridge rectifier check valve assembly (25), four-way valve assembly (26), electrical control box assembly (20), and balance tank (23) together form a heating and cooling heat pump unit system.

5. The heating and cooling heat pump unit suitable for building air conditioning locations according to claim 1, characterized in that, The front left column bracket (12), front right column bracket (13), left rear column (14), and right rear column (15) are installed on the chassis (11) at four opposite corners to form dead angle column support rods; the front lower panel (16), left lower panel (17), right lower panel (18), and rear lower panel (19) are respectively fixed on the columns; the front middle lower column (29) is fixed in the middle of the front side of the chassis, and the left side of the electrical control box assembly (20) is fixed to the front middle lower column (29) and the front right column bracket (13); the shock absorber assembly (2 7) Installed on the left rear side of the chassis (11); the intermediate heat exchange throttling assembly (24) is fixed on the left front side of the chassis (11), and backed by the front side of the compressor (21); the condenser (22) is installed on the right rear side of the chassis (11), and the condenser inlet and outlet water pipe joints are fixed on the right rear column (15); the water flow switch (28) is installed on the condenser outlet water pipe; the four-way valve assembly (26) is connected to the compressor outlet and return port, connected to the condenser inlet and the finned evaporator (9) of the upper assembly (4) gas collection pipe.

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