A heat pump all-in-one machine and system convenient to disassemble and assemble

Abstract

The application discloses a heat pump all-in-one machine and system convenient to disassemble and assemble, relates to the technical field of heat pump hot water equipment, and comprises a whole machine frame, a water storage tank, a main machine frame which is detachably connected with the whole machine frame, and a heat pump main machine which is installed in the main machine frame. The application sets the detachable main machine frame in the whole machine frame, integrally installs the complete heat pump main machine (containing a compressor, a heat exchanger and all heat conversion components such as related pipelines) on the main machine frame, and makes the heat pump main machine and the water storage tank form a module which is relatively independent in space and structure. When the equipment needs to be overhauled, maintained or replaced, the main machine frame can be integrally drawn out together with the heat pump main machine, so that the disassembly and assembly difficulty is remarkably reduced; meanwhile, the heat pump main machine pipeline has completed pre-assembly and sealing inside the main machine frame, is connected with the water storage tank only through a small amount of water pipe interfaces, can keep the refrigerant circuit intact after being disconnected, and avoids energy efficiency loss and environmental protection risks caused by on-site discharge and re-charging of refrigerant.

Description

Technical Field

[0001] This application relates to the field of heat pump water heating equipment technology, and in particular to a heat pump integrated machine and system that is easy to disassemble and assemble. Background Technology

[0002] Heat pump water heaters, as a highly efficient and energy-saving water heating device, have been widely used in both residential and commercial sectors in recent years. Existing products can be broadly categorized into two types: split-type and integrated-type. Split-type units separate the heat pump unit from the storage tank, connecting them via refrigerant copper pipes or insulated water pipes. This structure facilitates flexible installation based on building conditions, and the heat pump unit can be independently disassembled for maintenance; however, on-site installation often requires specialized operations such as pipe cutting, welding, vacuum evacuation, and metered refrigerant charging, resulting in long construction periods, high costs, and potential leaks at weld points and valve ports, affecting system reliability and long-term energy efficiency.

[0003] Integrated heat pump units combine the heat pump unit, heat exchanger, and water tank within a single frame. Manufacturers can complete internal piping layout, pressure leak testing, and refrigerant charging before shipment. On-site operation requires only connection to power and chilled water, significantly reducing installation difficulty and leakage risk. However, because the heat pump unit, water tank, and piping are compactly encapsulated within the integrated casing, the unit's overall weight and size are large, making transportation and placement difficult. More importantly, if the heat pump unit or heat exchange system malfunctions, numerous enclosure panels or even the entire unit must be disassembled for repair, consuming space and increasing labor costs. Therefore, how to achieve rapid disassembly and independent maintenance of the heat pump unit while maintaining the advantages of factory pre-charging and easy installation, and avoiding the complex operations of on-site vacuuming and refrigerant charging, has become a key issue that current integrated heat pump technology urgently needs to address. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an integrated heat pump unit and system that is easy to disassemble and assemble, which can significantly reduce the difficulty of disassembly and assembly during maintenance.

[0005] Firstly, this application proposes an integrated heat pump unit that is easy to assemble and disassemble.

[0006] According to an embodiment of this application, a heat pump integrated unit that is easy to assemble and disassemble includes: a main frame; a water storage tank disposed within the main frame for storing heated hot water; a main frame disposed within the main frame and detachably connected to the main frame; and a heat pump main unit disposed within the main frame, the heat pump main unit being connected to the water storage tank via a water pipe, and the heat pump main unit being used to heat water through heat exchange.

[0007] The easily disassembled integrated heat pump unit according to the embodiments of this application has at least the following beneficial effects: The easily disassembled integrated heat pump unit, by setting a detachable main frame within the overall frame, and installing the complete heat pump unit (including the compressor, heat exchanger, and all heat conversion components such as related pipelines) entirely on this main frame, makes the heat pump unit and the water storage tank spatially and structurally independent modules. When the equipment needs repair, maintenance, or replacement, maintenance personnel only need to loosen the locking parts to pull out the main frame along with the heat pump unit as a whole, without having to move the bulky, water-filled water storage tank, significantly reducing the difficulty and labor intensity of disassembly and assembly; at the same time, the heat pump unit pipelines are pre-assembled and sealed inside the main frame, connected to the water storage tank only through a few water pipe interfaces, ensuring the refrigerant circuit remains intact after disconnection, avoiding energy efficiency losses and environmental risks caused by on-site discharge and recharging of refrigerant; the cooperation between the overall frame and the main frame also makes the transportation and handling of the entire unit more flexible, allowing for separate transport and rapid reassembly according to site conditions, further expanding the product's applicable scenarios. In summary, this structure combines advantages in installation, maintenance, environmental protection, reliability, and cost, significantly improving the overall user experience and commercial value of the integrated heat pump unit.

[0008] According to some embodiments of this application, the heat pump host includes a refrigerant circuit, which includes an evaporator heat exchanger, a compressor, a condenser heat exchanger, and a throttling device connected in sequence, and a refrigerant is provided in the refrigerant circuit.

[0009] According to some embodiments of this application, the heat pump host further includes a water-side loop, which sequentially passes through a first inlet of a second water pipe, a water-side circulation pump, a first flow channel of the condenser heat exchanger, a first outlet of the first water pipe, and a water storage tank. The second water pipe further includes a second inlet for connecting with external cold water, and the first water pipe further includes a second outlet for connecting with an external user water pipe.

[0010] According to some embodiments of this application, the heat pump host further includes a ground-side loop, which sequentially passes through a first ground-side pipe, a ground-side circulation pump, a first flow channel of the evaporative heat exchanger, and a second ground-side pipe. The first ground-side pipe is used to introduce external hot water into the first flow channel of the evaporative heat exchanger, and the second ground-side pipe is used to discharge the water after heat exchange by the evaporative heat exchanger.

[0011] According to some embodiments of this application, an auxiliary heater and a first temperature sensor are further included, both disposed on the first water pipe. The first temperature sensor is used to detect the outlet water temperature in the first water pipe, and the auxiliary heater is used to provide auxiliary heating for the outlet water in the first water pipe.

[0012] According to some embodiments of this application, the auxiliary heater includes a plurality of heating units.

[0013] According to some embodiments of this application, the first water pipe is further provided with a three-way valve. The first water pipe includes a main pipe, a first branch pipe and a second branch pipe. The three-way valve has a first valve port, a second valve port and a third valve port. The main pipe is connected to the first valve port. The first end of the first branch pipe is connected to the third valve port. The first end of the second branch pipe is connected to the second valve port. The second end of the first branch pipe is provided with the first water outlet and the second end of the second branch pipe is provided with the second water outlet.

[0014] According to some embodiments of this application, the first water pipe, the second water pipe, the first ground-side pipe, and the second ground-side pipe are all provided with quick-release interfaces.

[0015] According to some embodiments of this application, the host frame is further provided with a locking member, which is used to fix the relative position between the host frame and the overall frame.

[0016] Secondly, this application proposes a heat pump integrated system that is easy to install and disassemble, including the heat pump integrated system that is easy to install and disassemble as described in any embodiment of the first aspect. Attached Figure Description

[0017] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of an integrated heat pump unit for easy assembly and disassembly, as shown in the example.

[0019] Figure 2 This is a structural schematic diagram of the integrated heat pump unit, which is designed for easy assembly and disassembly in this embodiment, from another perspective.

[0020] Figure 3 This is a structural schematic diagram of the integrated heat pump unit, which is designed for easy assembly and disassembly in this embodiment, from another perspective.

[0021] Figure 4 This is a schematic diagram illustrating the working process of the heat pump unit in an embodiment.

[0022] Figure 5 This is a schematic diagram of the structure of the heat pump main unit in an embodiment;

[0023] Figure 6 This is a schematic diagram of the heat pump unit from another perspective, as shown in the embodiment.

[0024] Figure 7 This is a schematic diagram of the heat pump unit from another perspective, as shown in the embodiment.

[0025] Figure 8 This is a schematic diagram of the auxiliary heater in an embodiment.

[0026] Figure label:

[0027] Overall frame 100; water storage tank 200; main unit frame 300; heat pump main unit 400; refrigerant circuit 410; evaporator heat exchanger 411; condenser heat exchanger 412; water-side circuit 420; second water pipe 421; water-side circulation pump 422; first water pipe 423; ground-side circuit 430; first ground-side pipe 431; ground-side circulation pump 432; second ground-side pipe 433; auxiliary heater 500; heating unit 510; quick-release interface 600. Detailed Implementation

[0028] The embodiments of this application 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 application, and should not be construed as limiting this application.

[0029] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 application.

[0030] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this application, unless otherwise expressly defined, terms such as "setup," "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 application in conjunction with the specific content of the technical solution.

[0032] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] In a first aspect, embodiments of this application provide an integrated heat pump unit that is easy to assemble and disassemble.

[0034] like Figures 1 to 3 As shown, the easily disassembled heat pump unit of this embodiment includes a frame 100, a water tank 200, a main unit frame 300, and a heat pump main unit 400. The frame 100 supports and secures the various components of the heat pump unit. Optionally, the frame 100 is welded from square steel pipes to form a rectangular three-dimensional frame structure with sufficient strength and rigidity to support the total weight of the heat pump unit. The bottom of the frame 100 may be equipped with several feet, each fitted with shock-absorbing pads to reduce vibrations during operation. The outer surface of the frame 100 may be covered with a protective panel, which may be made of materials such as metal sheets and coated with an anti-corrosion coating to protect internal components and enhance the overall aesthetics. Understandably, to facilitate the removal of the heat pump main unit 400 for inspection and maintenance of the easily disassembled heat pump unit of this embodiment, a maintenance door can be opened on the frame 100 corresponding to the main unit frame 300.

[0035] The water storage tank 200 and the main unit frame 300 can be longitudinally arranged within the overall frame 100, such as with the water storage tank 200 located at the top of the overall frame 100, and the main unit frame 300 and the heat pump unit 400 located at the bottom of the overall frame 100. The water storage tank 200 stores hot water heated by the heat pump unit 400. Its inner wall is smooth, and its exterior is covered with an insulation layer. The water storage tank 200 is securely installed within the overall frame 100 using a fixed bracket. The main unit frame 300 is detachably connected to the overall frame 100. The main unit frame 300 can also be constructed from welded steel pipes, but its dimensions are smaller than the overall frame 100, forming an independent sub-frame. For example, to facilitate the removal of the main unit frame 300, a slide rail can be installed at the bottom of the main unit frame 300. The slide rail engages with the guide rail at the bottom of the overall frame 100, allowing the main unit frame 300 to slide horizontally out of the overall frame 100 during maintenance or replacement.

[0036] The heat pump unit 400 is housed within the main unit frame 300 and contains all the core components of the heat pump system. In this embodiment, the heat pump unit 400 includes, but is not limited to, a compressor, a heat exchanger assembly, and related piping systems. The various components of the heat pump unit 400 are securely mounted to the main unit frame 300 using vibration-damping fasteners made of rubber, which effectively absorb vibrations generated during operation. The heat pump unit 400 is connected to the water storage tank 200 via inlet and outlet pipes for heating water; both the inlet and outlet pipes are equipped with quick-connect fittings.

[0037] The heat pump unit, designed for easy assembly and disassembly, allows for simple installation and maintenance. Simply disconnect the water pipe connection between the heat pump unit 400 and the water tank 200, and loosen the fixing bolts between the main unit frame 300 and the overall frame 100. The main unit frame 300, housing the heat pump unit 400, can then be completely removed for inspection or replacement. This design avoids the cumbersome process of disassembling refrigerant lines or transporting the entire unit, as required by traditional heat pump units, significantly reducing maintenance difficulty and time costs.

[0038] Understandable, such as Figure 4 As shown, the heat pump unit 400 includes a complete refrigerant circuit 410. The refrigerant circuit 410 consists of an evaporator heat exchanger 411, a compressor, a condenser heat exchanger 412, and a throttling device connected in sequence to form a closed loop. The refrigerant circuit 410 is filled with environmentally friendly refrigerant. The refrigerant circulates within the circuit and undergoes a phase change, achieving heat absorption and release. In the evaporator heat exchanger 411, the refrigerant absorbs heat from a low-temperature heat source and vaporizes. It is then compressed into a high-temperature, high-pressure gas by the compressor, enters the condenser heat exchanger 412, releases heat to the water-side circuit 420, and condenses into a liquid. Finally, it passes through the throttling device to reduce pressure and temperature before re-entering the evaporator heat exchanger 411 to complete the cycle. The refrigerant piping is made of welded copper pipes, and all joints undergo rigorous airtightness testing to ensure that the system operates without leakage risk over the long term.

[0039] Furthermore, such as Figures 4 to 7As shown, the heat pump unit 400 also includes a water-side circuit 420. The water-side circuit 420 sequentially passes through the first inlet of the second water pipe 421, the water-side circulation pump 422, the first flow channel of the condenser heat exchanger 412, the first outlet of the first water pipe 423, and the water storage tank 200. The first inlet is connected to the bottom of the water storage tank 200 and is used to draw water from the water storage tank 200 into the water-side circuit 420. The water-side circulation pump 422 is installed on the second water pipe 421 and is used to drive the water to circulate in the water-side circuit 420. The first flow channel of the condenser heat exchanger 412 is used to receive heat from the refrigerant circuit 410 and heat the water to a predetermined temperature. The first outlet is connected to the top of the water storage tank 200 and is used to return the heated hot water to the water storage tank 200 for storage. In addition, the second water pipe 421 also includes a second water inlet, which is located on the second water pipe 421 and between the first water inlet and the water-side circulation pump 422. This inlet is used to connect with an external cold water pipe to replenish fresh cold water into the system. The first water pipe 423 also includes a second water outlet, which is located on the first water pipe 423 and between the outlet of the first flow channel of the condenser heat exchanger 412 and the first water outlet. This outlet is used to connect with an external user water pipe to supply hot water to the user. During the circulation process of the water-side loop 420, when the system is running, the water-side circulation pump 422 starts, drawing low-temperature water from the bottom of the water storage tank 200 through the first water inlet, or introducing external cold water through the second water inlet. After being pressurized by the water-side circulation pump 422, the water enters the first flow channel of the condenser heat exchanger 412. In the condenser heat exchanger 412, water exchanges heat with the high-temperature, high-pressure refrigerant flowing through the second flow channel of the condenser heat exchanger 412 in the refrigerant loop 410, absorbing heat and increasing in temperature. The heated hot water flows out through the first water pipe 423. Some of the hot water can be directly supplied to users through the second water outlet, while the remaining hot water flows back to the top of the storage tank 200 for storage through the first water outlet. This design allows the heat pump unit 400 to directly output hot water to the storage tank 200, instead of installing a heat exchanger inside the storage tank 200. This simplifies the system structure and ensures that only a water pipe obstructs the connection between the heat pump unit 400 and the storage tank 200. When the heat pump unit 400 is removed, the refrigerant circuit 410 remains intact, avoiding energy efficiency losses and environmental risks caused by on-site discharge and recharging of refrigerant.

[0040] Furthermore, such as Figures 4 to 7As shown, the heat pump unit 400 also includes a ground-side loop 430. The ground-side loop 430 includes a first ground-side pipe 431, a ground-side circulation pump 432, and a second ground-side pipe 433. The first ground-side pipe 431 is used to introduce external heat source water (such as groundwater, geothermal water, or water after air-source heat exchange) into the first flow channel of the evaporative heat exchanger 411. The ground-side circulation pump 432 is installed on the first ground-side pipe 431, near the inlet of the evaporative heat exchanger 411. The second ground-side pipe 433 is used to discharge the cooled water after heat exchange in the evaporative heat exchanger 411 out of the system. During the circulation process of the ground-side loop 430, the external heat source water enters the first flow channel of the evaporative heat exchanger 411 through the first ground-side pipe 431 driven by the ground-side circulation pump 432. Here, it exchanges heat with the low-temperature refrigerant in the refrigerant loop 410, releases heat, and its temperature decreases. Then, it is discharged from the system through the second ground-side pipe 433, and can return to the ground, the geothermal heat exchange loop, or the air-source heat exchanger, depending on the application scenario.

[0041] The heat transfer relationship between the three loops is as follows: the heat source water in the ground-side loop 430 transfers heat to the refrigerant in the refrigerant loop 410 in the evaporator heat exchanger 411. After the refrigerant's temperature is further increased by the compressor, it transfers heat to the water in the water-side loop 420 in the condenser heat exchanger 412, realizing the heat "pumping" process from the low-temperature heat source to the high-temperature water. Under the monitoring of the electronic controller, the entire system automatically adjusts the compressor frequency, water pump speed, and electronic expansion valve opening according to the water temperature requirements and environmental conditions to maintain optimal operating efficiency.

[0042] This three-loop design makes the heat pump unit 400 a highly integrated module. All refrigerant piping is enclosed inside the unit frame 300, with only water pipes connecting it to the outside, greatly simplifying the installation and maintenance process. When the heat pump unit 400 needs to be inspected, simply disconnect the water pipes; without dealing with the refrigerant, the entire unit frame 300 can be removed, achieving truly convenient disassembly and assembly.

[0043] Understandably, based on the aforementioned water-side loop 420, the facilitating heat pump integrated unit of this embodiment further incorporates an auxiliary heating subsystem to ensure a continuous and stable supply of hot water at the set temperature to the user even under extreme climate conditions or inefficient operating conditions such as heat pump defrosting. Figure 1 and Figure 8As shown, an auxiliary heater 500 is connected in series at the outlet end of the first water pipe 423 (near the inlet of the water storage tank 200), and a first temperature sensor is installed adjacent to the auxiliary heater 500. For example, the auxiliary heater 500 adopts an electric heating structure with several heating units 510 evenly distributed inside; the outer shell is covered with an insulation layer to reduce heat loss and improve electric heating efficiency. The auxiliary heater 500 uses quick-connect flanges at both ends for easy disassembly and maintenance. The first temperature sensor is installed downstream of the auxiliary heater 500 on the first water pipe 423, in direct contact with the water flow, and is used to monitor the outlet water temperature after being heated by the auxiliary heater 500 in real time. The first temperature sensor can be connected to the control system via a shielded signal line to transmit temperature data to the controller in real time. The control system determines whether to activate the auxiliary heater 500 and the activation heating power based on the temperature difference between the user-set target temperature (preset target temperature) and the actual outlet water temperature detected by the first temperature sensor. For example, when the heat pump unit 400 is unable to raise the water temperature to the target temperature due to reasons such as low ambient temperature or a sudden increase in hot water demand, the auxiliary heater 500 will automatically start to supplement heat and ensure that the outlet water temperature meets the user's needs.

[0044] For example, the auxiliary heater 500 includes several independent heating units 510. Each heating unit 510 is arranged in parallel within the water flow channel and electrically isolated from the auxiliary heater 500 housing by a ceramic insulating base. Each heating unit 510 is equipped with an independent relay control circuit, allowing it to be turned on or off individually. The control system employs a tiered control strategy to selectively activate different numbers of heating units 510 based on the temperature difference. For instance, the auxiliary heater 500 contains six heating units 510. The control system divides the temperature difference into several intervals: when the temperature difference is less than 2°C, no heating units 510 are activated; when the temperature difference is between 2°C and 5°C, one or two heating units 510 are activated; when the temperature difference is between 5°C and 10°C, three or four heating units 510 are activated; and when the temperature difference is greater than 10°C, all six heating units 510 are activated. This tiered control method not only accurately matches actual heating needs and avoids energy waste but also extends the service life of the heating units 510 and reduces wear and tear on the equipment from frequent start-ups and shutdowns. Understandably, the auxiliary heater 500 may also be equipped with multiple safety protection measures, including overheat protection, overcurrent protection, and dry-burn protection. When the water temperature exceeds the safety threshold (e.g., 95°C) or the water flow is insufficient, the safety protection circuit will immediately cut off the power supply to the heating unit 510 to prevent equipment damage or safety accidents.

[0045] Through the design of the auxiliary heating system described above, the integrated heat pump unit in this embodiment can stably provide hot water at temperatures meeting user needs under various environmental conditions, while maintaining high energy efficiency and system safety. Especially in extreme low-temperature environments or during peak water usage periods, the auxiliary heating system can effectively supplement the heating capacity of the heat pump unit 400, ensuring a superior user experience.

[0046] Understandably, the embodiment of the heat pump integrated unit, which is easy to disassemble and assemble, also adds a three-way valve to the first water pipe 423 so that hot water can be directly sent to the user's water pipe when conditions are met, and returned to the storage tank 200 at other times, achieving the goal of maximizing energy utilization and taking into account the user's water experience. For example, the first water pipe includes a main pipe, a first branch pipe, and a second branch pipe. The main pipe is connected to the first valve port of the three-way valve; one end of the first branch pipe is connected to the third valve port of the three-way valve, and the other end is connected to the top inlet of the storage tank; one end of the second branch pipe is connected to the second valve port of the three-way valve, and the other end is connected to the user's water pipe. For example, a flow sensor (such as a Hall effect pulse output) and a pressure sensor can be installed in series on the user's water pipe. When the flow sensor detects that the instantaneous flow rate is greater than a preset threshold, or the pressure sensor detects an instantaneous pressure drop in the pipe, the controller determines that there is a user releasing water, i.e., "there is a demand for hot water". If there is no flow rate and the pressure returns to stability after continuous sampling for a period of time (such as 10 seconds), it is determined that "there is no demand for hot water". The switching logic of the three-way valve is as follows: When there is a demand for hot water, the controller outputs a "direct supply" command to the actuator, and the three-way valve rotates to the state where the first valve port and the second valve port are connected. Hot water is then directly delivered to the terminal faucet or shower through the user's water pipe. When there is no demand for hot water, the controller outputs a "recirculation" command, and the three-way valve rotates to the state where the first valve port and the third valve port are connected. Hot water is then returned to the top of the storage tank 200 to maintain water stratification and reduce heat loss. Understandably, to reduce heat loss in the pipe network circulation, intermittent recirculation logic can be set, such as: in the recirculation state when there is no demand for hot water, the pump automatically stops for 3 minutes every 15 minutes of operation; if the temperature sensor at the top of the tank detects a water temperature ≥ T_set + 2℃ (T_set is the user-preset target temperature) during the pump stoppage, the recirculation is paused to reduce unnecessary circulation; when the water temperature drops to T_set - 2℃, the recirculation resumes to ensure uniform temperature within the tank.

[0047] Understandably, in some embodiments, to further improve disassembly and assembly efficiency, several "quick-release interfaces 600" are installed on the inlet and outlet water pipes of the first water pipe 423, the second water pipe 421, and the ground-side circuit 430. When the main unit frame 300 needs to be completely removed for maintenance or replacement, if traditional threaded or welded joints are used, the disassembly process must involve draining water and cutting pipes, which is time-consuming and wasteful of materials. However, the heat pump main unit 400 and the water storage tank 200 are only connected on the water side, without a refrigerant bridging circuit. The quick-release structure allows the heat pump main unit 400 to be disconnected from the entire equipment "with refrigerant". For example, the quick-release interface 600 can be a commercially available twist-lock or plug-in quick connector, with the male end fixed to the main unit frame 300 pipeline and the female end fixed to the water storage tank 200 or an external pipeline.

[0048] Understandably, in some embodiments, to ensure the stability of the main frame 300 and the overall frame 100 during operation and transportation, without sacrificing detachability, a releasable "locking element" is provided on the side wall of the main frame 300. For example, the locking element 31 adopts a simple snap-fit ​​structure, including a snap-fit ​​body fixed to the side wall of the main frame 300 and an elastic claw, with a corresponding slot on the inner wall of the overall frame 100. When the main frame 300 slides into the interior of the overall frame 100, the claw automatically engages in the slot to lock; when disassembly is required, simply pressing the release device releases the locking state.

[0049] Secondly, embodiments of this application provide an easy-to-install and disassemble integrated heat pump system, including the easy-to-install and disassemble integrated heat pump unit of any embodiment of the first aspect. The function and principle of the easy-to-install and disassemble integrated heat pump system of this embodiment are based on the aforementioned easy-to-install and disassemble integrated heat pump unit. Therefore, the easy-to-install and disassemble integrated heat pump system of this embodiment has the same beneficial effects as the aforementioned easy-to-install and disassemble integrated heat pump unit. To save space, it will not be repeated here.

[0050] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A heat pump integrated unit that is easy to assemble and disassemble, characterized in that, include: Overall frame; A water storage tank, which is installed within the frame of the machine, is used to store heated hot water; A main unit frame is disposed within the main unit frame and is detachably connected to the main unit frame; the main unit frame is provided with a locking component, which is used to fix the relative position between the main unit frame and the main unit frame; A heat pump unit is disposed within the main unit frame and connected to the water storage tank via water pipes. The heat pump unit is used to heat water through heat exchange.

2. The easily detachable integrated heat pump unit according to claim 1, characterized in that, The heat pump unit includes a refrigerant circuit, which includes an evaporator heat exchanger, a compressor, a condenser heat exchanger, and a throttling device connected in sequence, and contains refrigerant.

3. The easily detachable integrated heat pump unit according to claim 2, characterized in that, The heat pump unit also includes a water-side loop, which sequentially passes through the first inlet of the second water pipe, a water-side circulation pump, the first flow channel of the condenser heat exchanger, the first outlet of the first water pipe, and a water storage tank. The second water pipe also includes a second inlet for connecting with external cold water, and the first water pipe also includes a second outlet for connecting with external user water pipes.

4. The easily detachable integrated heat pump unit according to claim 3, characterized in that, The heat pump unit also includes a ground-side loop, which passes through a first ground-side pipe, a ground-side circulation pump, a first flow channel of the evaporative heat exchanger, and a second ground-side pipe in sequence. The first ground-side pipe is used to introduce external hot water into the first flow channel of the evaporative heat exchanger, and the second ground-side pipe is used to discharge the water after heat exchange by the evaporative heat exchanger.

5. The easily detachable integrated heat pump unit according to claim 3, characterized in that, It also includes an auxiliary heater and a first temperature sensor installed on the first water pipe. The first temperature sensor is used to detect the outlet water temperature in the first water pipe, and the auxiliary heater is used to provide auxiliary heating for the outlet water in the first water pipe.

6. The easily detachable integrated heat pump unit according to claim 5, characterized in that, The auxiliary heater includes several heating units.

7. The easily detachable integrated heat pump unit according to claim 3, characterized in that, The first water pipe is also equipped with a three-way valve. The first water pipe includes a main pipe, a first branch pipe and a second branch pipe. The three-way valve has a first valve port, a second valve port and a third valve port. The main pipe is connected to the first valve port. The first end of the first branch pipe is connected to the third valve port. The first end of the second branch pipe is connected to the second valve port. The second end of the first branch pipe is provided with the first water outlet and the second end of the second branch pipe is provided with the second water outlet.

8. The easily detachable integrated heat pump unit according to claim 4, characterized in that, The first water pipe, the second water pipe, the first ground-side pipe, and the second ground-side pipe are all equipped with quick-release interfaces.

9. A heat pump integrated system that is easy to assemble and disassemble, characterized in that, Including the easily detachable integrated heat pump unit as described in any one of claims 1 to 8.

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